2010年12月19日星期日

Waste concrete crushing equipment

Introduction to concrete crushing equipment

Currently, the waste concrete crushing equipment are fixed and mobile two categories. For the production of recycled aggregate crushing plants can be fixed natural aggregate crushing equipment. Mobile crushing and screening equipment is evolved from the original fixed, and by a combination of stand-alone devices, and can be installed on mobile devices, easy to move the host device

At present, the representative mobile concrete crushing and screening equipment has the following three types:
1. large traction mobile crusher

Install a high-performance crusher, is set for the material, crushing, screening as one of the mobile production machinery. Although it is characterized by mobile, but it is a feeder, primary and secondary crusher, magnetic separator and screening machines as one of the broken equipment. This machine has automatic feeding system to run unattended; the largest diameter in the same machinery, bulk materials can be processed; reasonably compact body design, taking into account the noise = dust impact on the environment; automation of production Efficiency is very high, capable of producing high-quality recycled aggregate.


2. medium-sized crawler crusher

This model is equipped with feeding system, concrete crushing equipment roll crusher and efficient screening system at the job site to the main purpose of crushing. Two-axis roll crusher is equipped with a special type of strong crushing teeth, even if mixed with reinforced concrete, can easily be broken. Also, attached to the steel drum, but also through the roller running forward and reverse simply remove the broken. Machine production efficiency, environmental protection, but only the production of recycled coarse aggregate.

3. small mobile crusher
Aircraft due to demolition sites, construction sites and other on-site mobility and good production efficiency, has been highly acclaimed. Although they are small machine, but fully equipped and fully flexible features of the minicomputer. The machine installed feeder, they are able to feed and stable production, and can set the feed rate according to the situation of raw materials; low noise, vibration, help protect the environment, even if operating in the city affect the surrounding environment do not have to worry about ; use of rubber tracks, will not damage the ground; can install two conveyor and magnetic separator.

concrete crushing equipment application

1. bulk ore (metal mining, non-metallic minerals) break-up;
2. concrete components (cement road, machine foundation, bridges and housing components) partial and full demolition operations;
3. tunnels, ditches and other indoor or confined space, split the rock excavation or demolition work:
Hydraulic splitting machine operated rescue method is based on Kay Technology Co., Ltd. produces powerful high-performance hydraulic splitting machine to extend out of the construction method. Methodology covers rock ripper, road removal, slope treatment, and many other projects. Hydraulic splitting machine operated rescue law, in the case of blasting is not allowed, compared to "hammer" method of operation, to create a better economic efficiency: save time, save money!

2010年12月16日星期四

Vibrating Screen Application in Industry

The use of vibrating screen, metal wire or synthetic fibers such as woven materials system, there is uniform and stable surface of the holes, with the role of screening and filtration fabrics for industrial use. Mesh screen name used to head up. Screen specifications are often a number of holes per unit length (mesh) that is also useful to the width of each hole to the express. China's national standards for each hole a few centimeters, said holes such as 20 / cm. Screen is divided into raw materials used by the silk screen, metal wire mesh screen and the three types of synthetic fibers. Silk screen selected according to different size specifications of the mulberry silk yarn with all organizations, semi-hank organization or organizations woven plain weave, woven with the format similar to the mesh cloth. Mesh full hank fewer organizations, heads of a number of long, semi-plain weave yarn or organizations. Silk screen has the standard 4 to 62 holes / cm, most of them used for the screening of the food industry, but also for screening plant wheel emery cloth sand with different thickness. Copper wire with yellow metal mesh, phosphate copper wire, stainless steel wire woven into material. Wire thickness 0.025 millimeters has 0.4 specifications. Most of the use of plain or twill Organize I-shaped. Clear right hole metal sieve, noodle Net-Ping-ting, there is high temperature, wear-resistant properties, corrosion of stainless steel mesh capability also. Therefore, for the powder metal mesh screening and many aspects of. Synthetic nylon or polyester mesh has a wire filament and two brown. Filament with 15 to 30 day single-wire, mesh hole smooth surface, there is in favor of filtering. Hank may be the whole fabric, plain weave, such as mild side, specifications have 19 ~ 104 holes / cm. Net for many silk printing, integrated circuit printed circuit board system to do, but also CRT phosphor can be used for screening and the magnetic tape, such as smaller particles. Brown silk nylon mesh with coarse brown silk as raw material, a diameter of 0.55 ~ 0.1 mm for the plain weave fabric seats shaped many organizations, for the mineral processing, filter paper pulp, such as conveyors. Synthetic fiber mesh with non-rusting, corrosion resistance and other characteristics, can replace part of the metal mesh. Is a wire mesh weaving, metal plate punching stretching, through technical methods must create a large mesh product classify.
Screen applications throughout industry, agriculture, science and technology, national defense. Technology up to cutting-edge, high-tech industries, down to the clothing, food, housing, cultural life, with the simultaneous development of the national economy, solidarity with the people's livelihood. Mainly used in: Aviation, aerospace, printing, dyeing, electronics, mining, pharmaceutical, food, food processing, chemical industry.
Net metal four functions: screen, filter, security, solid.
Screen: mainly used in metallurgy, coal, rubber, petroleum, chemical, pharmaceutical, automotive, ceramics, glass and other industries for solid particles, powder, such as screening.
Filter: vibrating screen mainly used in the petroleum industry for Net mud, chemical fiber industry for electroplating and pickling Net filtering liquid gas purification.
Conservation: The main building approved for civil engineering of cement, raising chickens, ducks, geese, rabbits and zoo fence. Machinery and equipment protection, highway guardrail, sports venues fence, the road network of green belt protection.
Solid: can be used in the construction industry, roads, bridges used for reinforcement and support, such as skeleton. .
According to records containing: Anping Wire Mesh Mingsiao Koji originated in years.
1488: Wong urban and rural counties have woven silk Romanian village, and to the "Asia Travel Friendship"
1918: Shannon County mountain village tube will be in Japan the introduction of wire mesh Anping production technology and set up the first factory wire.
1928: Anping city has opened its people's livelihood. Yongan No.. No. born.cover plants, such as No. of Health.
1937: Japanese invasion of China, have been plant damage.
1949: After the founding of new China, has set up state-owned plant and Chengguan Anping wire drawing.He Chong. Pt 4, collective ownership Qiu Luo plant.
1966: Cultural Revolution, beginning, silk production reduced scale.
1978: Anping wire mesh industry started to recover.
June 24, 1984: <People> first published in Anping wire mesh and the development of a long history of the article, the same year, September 28 <Anping wire mesh town> as the news first television stations in the central, great Anping Wire Mesh enhance the well-known throughout the country.
1985: "1511 looms' transformation marks the ping successful screen production from manual to mechanized production.
1987: Anping wire mesh industry by the National Science and Technology Commission as a major support industries, the state plans to Mars.
September 1991: the first three Anping ---- methylamphetamine-funded enterprises in Anping Wire Mesh Co., Ltd. established. Shuttleless arrows with the introduction of Japan's success looms.
In 1995, the village is filled by (Li Feng), Hebei County will be punching the Net Ping to introduce production technology and developed in Guangzhou, at the same time created the first two:
1: Anping web wire mesh to do the first of the (metal mesh factory Guangzhou Changlong).
Two: Anping the first home computer numerical control punching Net to do business.
May 1996: Hebei Province, the first market in the State Planning Commission approved construction project of 146 million yuan investment ---- World screen to start the construction, which has become the country's largest distribution center wire products.
September 18, 1999: China National Hardware Association awarded Anping Great Hall of the People in Beijing, 'China's Rural screen' honorary title, marking the screen industry to enter a new stage of rapid development.
October 22, 2001: The first China (Anping) International Wire Mesh Fair successfully held in Anping.
Vibrating Screen Success Ltd. Guangzhou City of Guangdong Province are the longest established largest mesh production and sales enterprises, the predecessor of the origin of Screen Success in "China's Rural screen" and "mesh industry base of China" - Anping. The Company is committed to the production of major fencing wire mesh, shaped network isolation Net, Net framework, building products breeding and at the same time after years of development and expansion of products has been covered to: Punching Net, audio network, the loudspeaker network, noise barriers , sound-absorbing plate, microplate, screen machine, sieve, sieve films retaining block, Net shelves, plastic net, plastic net, plastic net sets, sets of plastic net, anti-theft Net, Net wall, metal wall Nets, aluminum Net, Net fiber glass married, invisible screens, battery Nets, Nets plate, Iron Net, welded wire mesh, plaster mesh, building net, hexagonal, Net hooks, cotton net, the U.S. grid, hexagonal, screw Flower Net, gill nets, with the transmission network, touch Net, Net-type seats, stainless steel wire mesh, copper Net, Net aluminum, nickel, Net, Net stock, air-conditioning filters, nylon mesh (silk printing), metals and other major Net Series Products. Factory was built in 1990, covers an area of 5000 square meters, a strong financial background. Can be customized according to user needs all kinds of wire mesh.
The company's products sell well all over the country, also exported to Europe and America, Southeast Asia and Hong Kong and Taiwan. Over the years, the company insist the introduction of high-tech talent, and has a lean, efficient and young professionals. Our company has modern heavy-duty welding machine six Units Net, Net 6000 Nissan welding square meters with advanced production technology, strict management mechanism, and the solid strength of the development of innovative, new and old has won the trust and appreciation of clients. Always: "quality, credibility first" principle, has severe test of the market, after almost two decades of operation and development, improvement of the expansion of factory scale.

2010年12月14日星期二

Grinding Mill advantages of the working principle and maintenance methods

Grinding Mill manufacturer mainly by the host, analysis machine, blower, finished cyclone, plumbing fixtures, electrical and other components. Which the host from the rack, into the wind

scroll, blade, roller, grinding ring, cover and motor. Auxiliary equipment are jaw crusher, elevator, electromagnetic vibrating feeder, cabinet, etc., the user can flexibly

choose according to the site. The following technical personnel Dragon King to meet you, Grinding Mill of some knowledge.

First, Grinding Mill works:

Materials are crushed to the required size, by the elevator to the material sent to the storage hopper, and then the feeder will feed into the grinder even the grinding

continuous room, when the centrifugal force due to the rotation, roller out swing, pressed on the grinding ring, shovel blade to the grinding material between roller and

grinding ring, because of the rolling roller to achieve the purpose of crushing. After grinding the powder material with the circulating air blower was brought into the analysis

of machine sorting, fine through coarse material falls back to re-grinding, with the airflow passing into the finished product is powder cyclone powder collector through the

powder discharge tube, is finished. Grinding Mill in grinding the material in the room because there was some water, grinding, heat, moisture evaporation, and the whole of the

pipeline interface is not tight, the external gas is inhaled, the circulation increased pressure to ensure the mill in the negative state work, the increase in gas flow into the

dust by more than duct was purified into the atmosphere.

Second, Grinding Mill advantages:

1, the Grinding Mill for the vertical structure, the area is relatively small, systematic, whether rough or from raw materials to final delivery to the milling and packaging,

can be self-contained independent production system.

2, Grinding Mill comparison with other milling equipment, which pass screening high-pass screening rate of 99%, other milling equipment is generally unattainable.

3, Grinding Mill closed main transmission gear box and pulley used, transmission smooth, reliable operation.

4, Grinding Mill important parts are made of high quality castings and molding manufacture of sophisticated, rigorous process to ensure that the package of equipment

durability.

5, the electrical system with centralized control, no one can achieve the basic milling plant operation, and maintenance.

Third, Grinding Mill of Maintenance:

1, milling machine in the use of the process, care should be fixed staff, the operator must have a certain level of technology. Milling machine operator in the installation

must be carried out before the necessary technical training to enable understanding of the principles of performance of Grinding Mill, familiar with operating procedures.

2, for the mill normal, should develop equipment "equipment maintenance safe operation of the system" can ensure the long-term safe operation of the mill, and maintenance

have the necessary tools and grease and the corresponding accessories.

3, Grinding Mill used for a period of time, maintenance should be carried out, while roller grinding ring blade overhaul replacement of wearing parts such as processing,

grinding roller device before and after the connection using bolts and nuts should be carefully examined to see if There loosening, whether to add a little grease.

4, roller devices of more than 500 hours or so to replace the roller when the roller bearing kit must be cleaned of all, the damaged parts should be replaced, fuel pumps and

hand tools available grease gun.

5, fine adjustment, based on the size of the material, hardness, moisture content, the proportion of different degree of processing are different thickness, can be adjusted

at the top of the analyzer, high speed, fineness, low speed, low fineness.

2010年12月13日星期一

concrete crusher for recycling building rubble

Recycle waste concrete crusher/ building rubble on-site into reusable material to save time, money & manpower!

Komplet recycling products will crush glass, porcelain, marble, granite, bricks, blocks, asphalt and reinforced concrete Transported on a standard 5ton equipment trailer these crushers can be fed by a mini excavator or skid steer. Processing between 45-110 tons a day, the size of the product can be varied depending upon requirements, from 0” – 3”.

Being small these units can operate in most locations with minimal effort and with pricing at a very competitive level, we can offer a prompt and friendly service. Our company would be happy to discuss any requirements, large or small—there are solutions to them all.

If U.S. demand increases in the next few years by an expected 1% per annum, 20 million tons of extra aggregates will be needed each year. Land fill charges will rise exponentially and total costs will increase dramatically. Why incur charges to send valuable rubble to landfill? Why not profit by crushing it into re-saleable recycled, secondary aggregates. Apart from the vast monetary advantage, the crusher is environmentally friendly as adopting this process reduces raw aggregates being taken from the ground and saves much space in landfill.

  • Don’t pay for new aggregates
  • Save on haulage
  • Save on space and time
  • Save on landfill charges
  • Save on manpower

We can contribute to the profitability of concrete crusher hundreds of companies and individuals in many diverse markets.

  • Plant Hire
  • Ground Workers
  • Demolition
  • Skip Hire
  • Building Construction
  • County & District Municipalities
  • Landscapers
  • Civil Engineers
  • Brick Manufactures
  • Stone & Gravel Suppliers
  • Driveway/Paving Specialists
  • Excavation & Drainage Contractors
  • Waste Transfer Stations

Concrete Crusher Hire UK

    SAVE MONEY - RECYCLE YOUR RUBBLE!

    Hire a Concrete Crusher and you can easily recycle concrete on site by crushing it into re-usable hardcore.

    • Save on skip hire / tipping costs avoiding the removal of concrete off site

    • Save on bought in MOT TYPE 1 hardcore or crushed material

    • Save on labour by reducing the amount of materials bought in and waste removed off site

    • Save on space – crushed material = one third of the space of rubble

    • Comply with new DEFRA Site Waste Management Plans now in law

    • Less deliveries + skips = Less trucks on road = Reduced carbon footprint

    • Turn waste concrete into valuable saleable material.

    Coal Crusher Knowledge

    Coal crusher applied for the station boiler

    Station boiler is a boiler providing steam to the turbine generator in thermal power plant, including boiler and ancillary equipment. Fuel is burned in the boiler and releases heat energy, and heat transfer through the metal wall of the boiler water into a certain pressure and temperature of superheated steam, then steam into the turbine, the turbine-driven generators. Total thermal power generation capacity worldwide is about 70%, 80% in China. Therefore, the boiler and its role in terms of energy consumption or from the point of the development of the national economy have a significant influence.

    Most of station boilers’ fuel is coal, so coal crusher is the main crusher equipment in thermal power plant for crushing coal.

    We should make optimal design of a coal crushing system. In order to promote the concept of coal particles and prefabricated, we use prefabricated, dry coal shed stacked, two broken and three screening can be a fundamental solution to block coal bunker coal, the furnace bed material quality degradation trends, improve coal preparation of system reliability. In this coal crushing process, SBM coal crusher relies on its unique advantages in a wide range of applications in the station boiler system.

    Coal crusher used in coal processing company

    Coal processing is as follows: After coal comes out of the ground, it typically goes on a conveyor belt to a preparation plant that is located at the mining site. The plant cleans and processes coal to remove dirt, rock, ash, sulfur, and other unwanted materials, increasing the heating value of the coal. During this coal processing, the used industrial equipment can be called coal processing equipments.

    Meet the requirements of coal particle size selected. Featured the coal crusher can handle a certain size range, over the range of large to go through a break before washing. Coal jaw crusher is used widely as a efficient coal crusher and applied in coal processing company.

    Some coal is a mixture of coal and waste rock symbiotic parting of coal, in order to choose the coal that needs to be broken into smaller particle size, separation of coal and waste rock. The most common case is to be elected in the primary election machine coal crushed to 13mm or 6mm following, and then sent to re-elect re-election machine.

    Size to meet user requirements, the products or coal broken are after the election to a certain size. According to the product size broken, broken job can be divided into coarse pieces (the crushing to 50mm and above), in pieces (broken into 25-6mm), small and fragmented (broken into 6-1mm), crushed (1mm or less). So depending on the above parts, we need primary coal crusher, secondary coal crusher and tertiary coal crusher for different crushings.

    How to operate a coal crusher rightly

    1. Check the functioning of the coal crusher that whether there is an exception within the percussion sound. Once there will be exceptional circumstances should immediately stop working. This is the first and important step for coal crusher installation.
    2. Note the pump operation, regular checks throughout the oil flow indicator, oil temperature and oil pressure indicators and so on. After the cooler the oil temperatures should not exceed 45-53 ℃, oil that will be back temperature should not exceed 60℃ and the department of suspension in time up to the oil.
    3. Check the tightness of V-belt using the thumb pressure to measure V-belt tension. You should do it carefully according to the coal crusher manual.
    4. Always check whether coal crusher beams, the frame the connection between body and machine pin is loose.
    5. Check whether coal crusher liner is loose, missing and wearing.

    Coal crusher services during the sale: Respect clients and devote ourselves to improving the total value of clients.

    Coal crusher after-sale services: Provide considerate services to minimize clients’ worries. We will assist you to prepare for the first construction scheme, install and debug the coal crusher equipments, train the first-line operators on site, examine the coal crusher regularly, provide perfect service and provide maintenance for coal crushers.

    Aggregate crusher system, the structural characteristics

    Stone Crusher in the process of dealing with aggregate has an indispensable role. China's hydropower, roads, railways, construction (urban focus on the supply of concrete) and other industries are national infrastructure sectors, the national focus of the investment industry, it is booming. These industries need to produce aggregate aggregate system to meet the quality requirements of concrete. Impact Crusher can be widely used in the system.

    Crusher technical staff that the aggregate crusher system is broken by impact energy to the material of broken machinery. The fragmentation function of particle size less than 500 mm processing, not more than 360 MPa compressive strength of various materials. With the crushing ratio, high crushing efficiency, easy maintenance and so on. Products were cube, is a senior road surface and the water used for construction of the ideal aggregate processing equipment. Yuanhua crusher for its excellent performance and good performance in the highway construction, hydraulic engineering and gravel processing and other areas of construction widely used. For the broken side not exceeding 500mm, the compressive strength of not more than 260Mpa a variety of materials. Granite, limestone, river gravel, which are better applicability.

    Aggregate System Impact Crusher Features:

    1. Inlet large, high crushing chamber to meet the material hardness, fragmentation, the product powder less;

    2. back plate and plate hammer can easily adjust the gap, effective control of the particle size, particle shape is good;

    3. compact, machine rigidity, the rotor has a large moment of inertia;

    4. high chrome hammer, impact resistance, abrasion resistance, impact large;

    5. keyless access, easy maintenance and reliable;

    6. broken-function, high productivity, small mechanical wear, high overall efficiency.

    Crusher Equipment Maintenance six

    Broken equipment includes a wide range of machinery, but more can be classified, and on the use and maintenance are a common, so start with a large crusher to equipment maintenance can be divided into the following six, depending on the machine can be Select a different way of maintenance.

    1. Crusher equipment lubrication maintenance

    Constant attention and in a timely manner the work of friction surfaces lubricated, jaw crusher can guarantee the normal operation and extended equipment life. Adding the grease for the bearing capacity of 50-70% must be replaced once every three months, oil change, application of clean gasoline or kerosene carefully cleaning the track roller bearings. Bracket and elbow pads contact plate, crusher before starting into the grease.

    2. Stone Crusher routine maintenance of equipment

    To ensure the crusher equipment is in good technical condition, ready to be put into operation, reduce downtime days, Crusher good rate increase, utilization, reducing crusher wear and extend the life of crushing machine, crusher reduces operating and maintenance costs and ensure production safety, strengthen the crusher to be routine maintenance work; to do regular maintenance, force, and correctly handle the relationship between use and maintenance and repair, allow only non-support, and repair is not dependent only.

    3. Crusher maintenance of equipment to go in period

    Completion of the new crusher machine and overhaul to go together to go after the close cooperation of the maintenance must be carried out, the main contents cleaning, fastening, adjusting and replacement of oil by the use of departments to complete the asset administrator to check the asset management department supervision.

    4. The transfer of equipment, maintenance of crusher

    Stone Crusher on site before the transfer, the transfer should be carried out maintenance, operation content according to the technical condition of the crusher for maintenance, if necessary for preservation. Transfer of maintenance unit from the breaker out of the organization, the project, Asset Manager Inspection, Asset Management and supervision.

    5. Maintain the bearing crusher equipment

    Bearing parts are the most easily damaged parts, as in the use of relatively large so the need to wear regular maintenance, often filling in order to increase bearing life.

    6. Crusher equipment seasonal maintenance

    Replacement of the main contents of the season for oil, fuel oil, antifreeze taken measures to increase the freezing facilities. Organization by the user departments, operation monitor the inspection and supervision.

    2010年12月12日星期日

    copper crusher applicatiopn in Industry

    Perhaps the greatest area of misunderstanding of pressure terminology, has arisen from earlier practice of referring to chamber pressure as some number of "pounds per square inch (psi)". Many earlier ballisticians believed that results of a firearm chamber pressure tests were accurately described as psi. The truth was their test results had little to do with actual pounds per square inch.
    Their "crusher" testing and the testing still used in many ballistic labs, uses a barrel with a hole drilled into the chamber perpendicular to the bore's axis, usually 1" from the rear edge of the chamber. A slip fit piston is fitted into this hole with its end contoured to precisely fit the inside of the barrel chamber. In testing, a cartridge is loaded into the chamber and the piston slipped into place. A copper crusher is then stood on top of the piston and is securely held in position with an anvil. When fired, the cartridge case has a small disc rupture from it at the location of the piston hole. The hot and rapidly expanding gasses in the chamber push equally on the bullet base and on the piston base. The piston in turn moves heavily on the copper crusher, which is forced to collapse to a varying degrees depending on the total amount of pressure applied to it by the piston.
    The amount of "crush" of the copper cylinder is then measured carefully and this crush length is compared to a tarage table which lists a specific value for the amount of crush which occurs.
    There is, of course, more to the crusher pressure testing system then the foregoing few words might suggest. The point to be made is that the copper (lead for shotguns and some handguns) crusher method is a valid and useful tool for ammunition evaluation, but it does not actually express pressures in true pounds per square inch. This did not escape the attention of newer generation ballisticians. They set out to correct the misnomer of pounds per square inch and used instead the designation copper units of pressure (CUP's) or lead units of pressure (LUP's). However, the erroneous term PSI had become so accepted that it was frequently used interchangeably with CUP or LUP. While such use was technically wrong it created no major problems when everyone was talking about the same thing; the result of a copper or lead crusher pressure test.

    Copper ore a valuable mineral source for all countries. The biggest copper mines are in Chile and North America, every year many thousands of tonnes of copper ore were produced, The copper ores are extracted by either traditional mining (open pit or underground) or by leaching, and 90 percent of the copper ore was mined from open pit. The copper is then recovered using physical and chemical techniques. Copper ore is an ore which can be smelted in a furnace along with a piece of tin ore to create a bronze bar. Copper ore, along with tin ore, are the first ores a player can mine using the Mining skill.

    Copper ore crusher

    There are several types of crushers to be choosed as Copper crusher. Jaw crusher usually is primary crusher for ore primary crushing. Impact crusher is also can be used in Copper ore crushing process. The text step is screening process. According to the requirements of size, choose the right screening machine to screen out the eligible Copper ore. It's also need copper ore grinding mills to make it into powder.

    Industrial use of copper ore stone

    Copper is found in nearly every home and vehicle, in parts and appliances, and in instruments used in all aspects of modern living, infrastructure and technology. In many respects, modern life would not have been possible without copper.

    How copper is mined copper ore mining crushing plant

    Copper is mined either at open pit copper ore mines or underground copper ore mines.
    First the copper ore is blasted, loaded and transported to the primary crushers. Then the ore is crushed and screened, with the fine sulfide ore (~-0.5 mm) going to froth flotation cells for recovery of copper.

    In the primary crusher, the ore is broken into smaller pieces of less than 25 centimetres in diameter. Copper Crushed ore is then loaded on to a conveyor belt which takes it to the storage bin. In the storage bin, ball mills and other grinding machine grind the ore until it is a fine powder.
    During the crushing process, Comparing the operation efficiency of Symons cone crusher and hydraulic cone crusher, we find Symons cone crusher achieved better results in tertiary crushing. And if installing the same number of secondary and tertiary crushers, a part of operation is transmitted from tertiary to secondary crushers where the liner wear is three times less, which significantly influences on the cost reduction in the crushing process.
    As a major mining crushing equipment manufacturer in China, we can supply our clients with jaw crusher, cone crusher, impact crusher and industrial grinding mill etc. Our jaw crusher is a good primary crusher, our impact crusher is widely used as secondary crusher, our cone crusher including Symons cone crusher, hydraulic cone crusher can be used as secondary crusher and tertiary crusher. Beyond this, we also supply ball mill, vertical mill, Raymond mill, trapezium mill etc. to our clients.

    Cone crusher in the late maintenance of attention to matters relating to the ten

    1. Cone crusher at work Note:
    (1) ore must be assigned to the disk in the middle, does not allow the ore directly into the crushing cavity. Because it is easy to crusher overload, the liner wear unevenly.
    The right Ore condition:
    a ore distribution plate uniformly dispersed in the crushing cavity.
    b to roll into the ore can not be higher than the level of Mortar
    (2) the largest crusher to the ore size, population size allowed is equal to mine, (the maximum size of the ore block ≤ 85% to the mining population size) or they will lead to:
    a crusher production decreased.
    b crusher damage some of the other pieces.
    (3) No load start-breaker, the load will start the accident.
    (4) parking, you must first stop to the mining machine, and so the ore has been broken into the crushing chamber after discharge, the crusher parking.
    (5) crusher work should always check the pressure and hydraulic locking system, work station, identify problems and timely treatment.
    2. Crusher output
    Cone Crusher output, and feeding methods, feeding fragmentation, the degree of discharge block size, the physical and mechanical properties of the ore, temperature and other relevant, varied greatly, manufacturing output is given under the conditions specified in the broad throughput.
    3. Rolling replacement Mortar
    Mortar rolled into a U-shaped screws on the adjustment ring, between the injection of zinc alloy, so closely integrated with the new installation or replacement of rolling acetabular wall, in the 6-8 hours of work, check the fastening, U-shaped and re-tighten the screws.
    4. Cone crusher wall replacement
    Cone crusher with a cone head wall is fixed to the cone on the body between the two casting of zinc alloy, a new installation or a new wall replacement cone crusher working 6-8 hours, check the fastening, loose should be immediately found fastening.
    5. Meshing
    As the circular plate friction wear of the gear change of the gap in order to ensure the proper meshing gears must be covered with additional pads on the bottom, the gasket should be equal to the thickness of circular plate wear.
    6. Bowl bearings and seals
    Installation bowl bearings, taking care not to damage the rope Retaining Ring (use of hardwood and other objects between the support wire).
    Assembly, should be scraping spherical bearing, crushing cone and the bowl to ensure that each sphere in contact with the inner cylindrical 0.35-0.5mm should ensure that the ring gap.
    Bowl perfusion around the bush is of alloy nail bar fixed to the bowl bearing the shelves to prevent the bowl along the circumference side bearing any rotation.
    Bowl bearing frame and the frame body with the key (pin) fixed, and if found in the work bowl bearing frame and the frame body with clearance must be handled immediately.
    7. Cylindrical sleeve and the frame body for the third transition fit, in order to prevent the rotating bush, but also in the upper bushing into the zinc alloy tank, replace the bushings when the actual size of the frame body should be prepared, because After a long work crusher and handling the inevitable result of the cooperation with change. If the gap is too general lead lining to rupture.
    8. Conical bush
    Eccentric shaft sleeve and air together to study the injection of zinc alloy to prevent sleeve rotation, to be filled with all interstitial zinc alloy, zinc alloy due to thermal injection may cause the sake of the deformation of sleeve, so better check the size of the new cone set d1, d2 and B, should be timely correction is not correct, manufacturing spare parts, should be the actual size of the inner diameter of the eccentric sleeve to keep the original with the preparation.
    9. Spring
    (1) the role of the spring is when the crusher is not broken into the crusher to protect property is not damaged, so the spring pressure and crushing machine crushing force fit, when the crusher is in normal operation the spring is not moving, just fall into the crushing chamber overload when iron lift the crusher bearing sleeve spring is compressed the phenomenon occurred.
    (2) cone crusher when the upper part of the normal beat, this is not a normal phenomenon must be carefully analyzed the causes and take measures to eliminate, if the error can not be compressed spring is not only normal work, but part of the damage that may occur because of compression spring will cause the breaking force increases.
    Crushers beat the top result for several reasons:
    A non-uniform, or to the mine to mine too
    B to the mine in small pieces and powder containing excessive minerals or humidity.
    C port of discharge gap is too small.
    10. Exposed rotating machine parts, protective cover should be added, but the shield owned by the user.

    2010年12月9日星期四

    Characteristics of plastic crusher

    The advantages and disadvantages of plastic crusher
    The advantages of plastic
    1, most of the corrosion resistance of plastics, not with acid, alkali reaction.
    2, plastic manufacturing costs low.
    3, durable, waterproof, lightweight.
    4, likely to be plastic into different shapes.
    5, is a good insulator.
    6, the plastic can be used for preparation of fuel oil and fuel gas, which can reduce oil consumption.
    The disadvantage of plastic
    1, recycling of waste plastics, the classification is very difficult and economically viable.
    2, the plastic is easy combustion, produce toxic gases when burned. For example, polystyrene combustion of toluene, a small amount of this substance can cause blindness, vomiting and other symptoms of inhalation, PVC burning will produce toxic hydrogen chloride gas, in addition to combustion, is the high temperature will cause decomposition of the toxic ingredients of plastic, such as benzene and so on.
    3, the plastic crusher is made from petroleum-based products, oil resources are limited.
    4, the plastic can not be biodegradable.
    Because plastic can not be natural degradation, has now led to the tragedy of many animals. Such as the zoo's monkeys, pelicans, dolphins and other animals, are readily lost visitors swallowed No. 1 plastic bottles, and finally as indigestion and painful death; looked beautiful and clean sea, approaching the look, in fact, a great, full of various oceans can not accommodate the plastic waste, dead birds in more than just gut samples and found a wide variety of plastic can not be digested.
    Hazard for the plastic, we have developed a plastic crusher, plastic greatly reduces the damage to the environment. Nagin, Dongguan Plastic crusher machinery production are environmentally friendly, low carbon, energy-saving features.

    Since the usefulness of human beings after the discovery of oil, plastic garbage everywhere. Various types of plastic bottles, plastic tubes, plastic containers, and other special crusher, professional handling of all kinds of waste plastics. Reducing urban pollution, promote the effective recovery of waste. The emergence of plastic crusher, plastic garbage ease the damage on the urban environment. Nagin crusher plastic machinery has the following characteristics:
    1. effective
    Effective, comprehensive, precise, durable handle all types of plastic waste. No dust, no noise, energy saving.
    2. the machine blade
    Long life. Use of special alloy material, the use of high technology treatment, the use of rigorous independent installation, increased blade life and reduce maintenance time for the blade.
    3. the cost
    Low cost. Because the use of comprehensive rationalization of design, increased use of machinery hand, extending the efficient use of machine time, and a significant decline in the cost.

    2010年12月8日星期三

    Grinding Mill Model and User Guide

    Calcite belongs to hexagonal system, its chemical composition is CaCO3, the most important carbonate minerals, has full rhombohedral cleavage, vitreous luster, transparent to translucent, white or colorless general, hardness 3.0, specific gravity 2.71, can be soluble in dilute hydrochloric acid and sparkling, pure and transparent as Iceland spar (Iceland Spar), with a strong birefringence and complete cleavage. Limestone, marble and beautiful stalactites calcite is the main mineral.
    Iceland spar due to a birefringence is often used in the polarizing prisms, such as the cylindrical cut a certain way, but when the prism microscope to detect the optical properties of minerals, generally calcite used in chemical, cement and other industrial raw materials.
    Over the years we have mastered the fine powder processing technology equipment of grinding mill, application of traditional Raymond problems arising in the course of a comprehensive and thorough technical innovation. We found when using traditional Raymond, Raymond slag in the processing of calcite class, the 325 10um slag contains large amounts of ultra-fine powder, if it can be isolated and expanded production, will significantly improve efficiency .
    To this end we have a lot of Raymond upgrading the structure: the traditional way of improving the host, the spindle and plum frame for stable structure in favor of reform, to make it run smoothly. Centre without swing. Traditional part of the analysis machine towed by the cavity, cavity to cavity rotary drive hanging of two isolated, thus increasing the stability of its work, durability.
    Ministry of the crushing area, so always be grinding the material gathered in the grind zone for effective processing, improved grinding efficiency, we also roller structure was updated to grinding mill wheel and the roller shaft can be complementary operation. In the rotation can also revolution. More to the effectiveness and durability. And to the larger grinding force and higher operating speed work.
    In the ventilation section, bellows duct by the end of the original level of 30 degree tilt to the center to form a bucket-like, to ensure that the bellows, air duct is always smooth without blocking, which always maintain the required air volume, the host mill is high efficiency. The design of the entire system, from the traditional two to four collection collection. Negative pressure to collect the primary and secondary locking type with a loop to collect, no dust overflow, third and fourth level collection of wet and dry series controllable overflow collection, eliminate dust overflow. The whole system to fine powder in the collection at the same time, eliminate or reduce the pollution of the surrounding environment.
    New Grinding Mill machine can use more of calcite, dolomite, talc, kaolin, barite, rutile, fluorite and other non-metallic mineral ultra-fine grinding. The practice test, the choice of feed size of 25mm grinding of calcite, when the fine degree of adjustment to the 1250 target (10um), the output can reach 400kg / h, while the input power only 23kw. Than the traditional Raymond has significantly more high price.
    Developed for different minerals have launched Raymond Mill, High Pressure Suspension Grinder, high pressure micro powder mill, ultrafine powder mill and other mill machinery, with the jaw crusher and upgrade the machine and other ancillary to complete the various requirements of different materials, the milling process, fully able to keep up with customer's production process.

    2010年12月7日星期二

    Wollastonite Processing Machine

    We are the top producer of Wollastonite Processing Machine in China, the storeage of our mine exceeds 10 millions metric ton, with advanced processing machine and high technology, we are confident that our product can meet your every special useage purpose.
    Wollastonite is a naturally occurring mineral with many unique characteristics. Through advanced processing, it has become one of the most versatile functional fillers in the marketplace. Wollastonite increases the performance of many products including plastics, paints and coatings, construction materials, friction, ceramic and metallurgical applications to name a few.
    Wollastonite is an industrial mineral comprised chemically of calcium, silicon and oxygen. Its molecular formula is CaSiO3 and its theoretical composition consists of 48.28% CaO and 51.72% SiO2. Natural wollastonite may contain trace or minor amounts of various metal ions such as aluminum, iron, magnesium, potassium and sodium. Wollastonite is rarely found by itself and generally contains other minerals like calcite, garnet and diopside that are removed during processing.
    Optimum performance is created by properly matching the correct coupling agent at the right concentration level to the polymer system. Overall, the benefits of a surface modified wollastonite are improved physical properties, improved processing along with improved dispersion of the resin.
    Plastics: In plastics, Wollastonite Processing Machine  improves the durability of the composite due to its acicular or needle-like structure. It also enhances electrical insulating properties, adds fire resistance, and improves dimensional stability. Finer particle size grades provide improved scratch and impact resistance compared to other materials. The application of surface treatments like silanes on the wollastonite substrate changes the mineral from a utilitarian filler to a functional component of a polymer composite. This in turn adds performance values which the base resin alone does not possess. Optimum performance is created by properly matching the correct coupling agent at the right concentration level to the polymer system. Overall, the benefits of a surface modified wollastonite are improved physical properties, improved processing along with improved dispersion of the resin.
    Construction: Wollastonite has found application as a substitute for asbestos in fire-resistant building products used in the construction industry. As a functional additive, wollastonite improves flexural and impact strengths. Its low thermal conductivity and high aspect ratio structure also makes wollastonite an attractive addition for applications requiring fire resistance. Wollastonite finds application in interior and exterior construction boards, roof tiles, shaped insulation products, sheets, panels and sidings.
    Ceramics: Wollastonite Processing Machine  can be used in a variety of ceramic applications including ceramic glazes and bodies, enamels, frits, fluxes and in sanitaryware. This industrial mineral is a source of CaO to alkaline glaze formulations to improve the strength of the glaze. Wollastonite also has a low LOI (< 1%) which gives minimal gas evolution during firing resulting in a smooth surface with diminished pinholing. Due to its acicular structure, wollastonite improves green strength and reduces crazing and checking especially during rapid heating and cooling. It has a low sintering temperature (approximately 991-1196C) which is comparable to that of most natural frits.

    Recent domestic stone machinery industry

    With technological development, stone crusher machinery development so far, has made great progress. This high growth situation, there will be gravel mechanical component parts industry to a new period of development. Stone machinery industry in China has been rapid development, technology process has been greatly improved than before. However, changes in the market can not be ignored. There is no market competition, no technological innovation. Counterattack crusher, impact crusher crushing equipment manufacturers is the most widely used crushing equipment, Yu Ding mechanical lithotripsy over the years, experience in crusher manufacturers to create higher value for you! You can click on the right Online customer service for more information!
    Stone Crusher is widely used in mining, smelting, building material, highway, railway, water conservancy and chemical industry and many other sectors. There currently used mechanical jaw stone crusher, counter-breakers, winnowing mill, hammer crusher, impact crusher, roller crusher, gravel and other Composite. Jaw crusher (jaw crusher), with a crushing ratio, even granularity, simple structure, reliable operation, easy maintenance, operating cost and so on.
    How to get rid of the machinery industry is so difficult to meet the current state of development, which undoubtedly requires government departments to introduce new policies to encourage all manufacturers should cut expenditure, with a good sum of money each. Status of the enterprise and should be reformed to adapt to the current economic state, enterprises should take the management in the management of the road, the product should go high-tech development. Private enterprise to rid itself of any little mistake, so and gradually scale, standardized development, the real corporate sustainable development path. In a traditional stone machine design, product design is conservative, low efficiency and high energy consumption, serious impact crusher production businesses and users of economic benefits. In recent decades, the rise at home and abroad crusher cone crusher used in the design of the study and achieved great results, developed a set of high pendulum frequency, optimized cavity shape and reasonable stroke in one of the modern high-energy conical stone machine.
    Moreover, the scope is the development of enterprises should be gradually expanded so that local products should also international, brand. Such targets are now in the rubble of China's machinery industry in the production of only a few large enterprises in taking such a path, are constantly trying to innovate. This is a good sign, which requires companies in the sales model, as well as in product quality and high technology with international standards, but only a small number of enterprises, and China stone crusher is now a lot of the development of private enterprises has also been a very rough way taking the very tortuous, which requires government departments should be introduced to encourage small and medium enterprises, private enterprises to take the road to sustainable development, mimicking large enterprise business management and marketing model, try the road of sustainable development is feasible . Stone machinery industry requires constant innovation and reform, the introduction of advanced technology development of China stone machine industry.

    2010年12月6日星期一

    Simply put, Jaw Crusher Working Principle

    Simple pendulum jaw crusher works:

    Moving jaw crusher suspension mandrel can be used as swing around the eccentric shaft rotates, the rod up and down reciprocating motion. Two thrust plates driven reciprocating motion, thus promoting the reciprocating motion of the moving jaw do so to achieve fragmentation and unloading. Such double-crusher crank linkage, although the fixed jaw broken by a great reaction force, and its eccentric shaft and connecting rods are Shouli Bu large, so the industry made more mainframe and mid-sized machine, used to crushing hard materials. In addition, the Crusher, the moving jaw on the trajectory of each point is the center of the axis of the arc radius is equal to the distance from such point to the axis, the top of the arc is small, the bottom arc large, crushing low efficiency, the reduction ratio i is generally 3-6. As simple trajectory, it is called a simple swing jaw crusher.
    Simple pendulum jaw crusher is simple compact, eccentric shaft driving force smaller pieces; vertical displacement of the movable jaw smaller, less materials processing phenomena of excessive fragmentation, moving jaw jaw plate wear small.
    Jaw Crusher Working Principle:
    Upper moving jaw hanging in the eccentric shaft directly, as the crank connecting rod, eccentric by the eccentric shaft direct drive, moving the bottom jaw thrust plate support hinge attached to the rear wall of the rack. When the eccentric shaft rotates, the moving jaw on the trajectory of each point of the circle by the hanging point line (radius equal to the eccentricity), and gradually down into the Oval, the more down to the Ministry of the more oval-shaped side, until the bottom and thrust plate connection point for the arc line trajectory. Because of this machinery moving jaw at various points along the trajectory is complex, it is called complex swing jaw crusher.
    Compound pendulum jaw crusher, compared with the simple pendulum, and its advantages are: quality of light, fewer components, more compact structure, degree of crushing cavity filled with good material blocks are evenly loaded broken lower jaw to move Mandatory introduction of product discharge, it is higher productivity, compared with the same specifications of the simple pendulum jaw crusher 20-30% higher productivity; material blocks the lower jaw moving up and down rolling movement with a large, easily was the shape of a cube unloaded, reducing the product as simple as tilting the sheet components, better product quality.
    Other types of jaw crusher:
    1. Hydraulic jaw crusher
    2. No grinding jaw crusher
    3. The impact of jaw crusher
    4. Direct drive jaw crusher
    5. Dual chamber jaw crusher
    6. Wedge roll jaw crusher

    Second-generation jaw crusher hammer a pair of plate surface using only the second reversible counter the wear plate can not be adjusted after the gap, and the third generation of vertical back Hammer can also be turned face down with four directions , and each radial direction can move 30 ~ 50 mm, compared with the second generation of vertical adjustment of back Hammer increase in the number of at least 10 times, and the back plate wear can guarantee the space, therefore, in theory, the board Hammer also increase life expectancy 10 times, that is, a pair of boards can be broken hammer 10 to 15 million tons of clinker, but taking into account other factors, at least 3 to 5 tons is broken for sure. But also through complex manufacturing processes, high resistance to wear-resistant materials fully guaranteed the effective use rate of 70% to 80% or more. Can be seen, although this new variant of the hammer price increased slightly, but its use and the economy overall efficiency is better.
    Note: (1) new board began to hammer the situation; (2) board hammer can be used for some time rubbed off the opposite corner of use; (3) after the use of negative plate hammer; (4) When the board using the hammer opposite corners wear, increasing the gap can induce a large plate hammer to ensure the use of space; (5) board hammer wear can turn around and use the gap and then increases; (6) When the liner wear, the board may induce a hammer again to ensure that the use clearance.

    2010年12月5日星期日

    Milling process and functional requirements

    Improved ball mill cement mill conditions; cement mill with a new liner, adjust the speed of the mill, cement ball mill optimization of high-quality design and high-manganese steel bearing lubrication of gear parameters, increasing the mill and the smooth functioning of life, improve the efficiency of ball mill grinding cement. The cement mill cement production capacity at home 30-32 to validate tons / hour, into the grinding size should be ≤ 25MM, into the ground water ≤ 0.5%, grinding of the maximum load of 81 tons, the weight of 170 tons of cement mill equipment.. Lattice Lattice Ball Mill Ball Mill Plant is the material to be broken, and then to smash the key equipment. Lattice-type ball mill is widely used in cement, silicate products, new building materials, refractory materials, fertilizer, ferrous and nonferrous metal and glass ceramics and other mineral production industries of all kinds of ores and other grind-able materials can be dry or wet powder ball mill grinding mill manufacturers Pingdingshan Pingdingshan mill manufacturer sales network Internet Gold Member Henan Tai. Lattice-type ball mill plant works: grid ball mill is a horizontal cylinder rotating mechanism, high-quality high-manganese steel outer gear and two positions, lattice-type ball mill. Material from the feed device into the compound by the screw axis evenly space the first position into the mill, ceramic ball positions within the ladder liner or corrugated liner, built with different specifications steel ball, rotating cylinder will generate centrifugal force to the ball After the fall height, ceramic materials have severe impact on milling and grinding effect. Ceramic ball to coarse grinding of materials in the first position, after single-layer diaphragm plate into the second position, the positions are lined with flat lining, the steel ball, the material to further grinding. Powder discharged through the discharge grate plate to complete the grinding operation. Lattice Ball Factory Features: grid ball mill by the feeding part, discharging Department, Rotary Department, the Ministry of transmission (reducer, small driving high-quality high-manganese steel gears, motors, electrical control) and other major components. Pingdingshan Pingdingshan ball mill manufacturer manufacturers use cast steel hollow shaft, lined with removable, rotating big gear with high-quality high manganese steel casting hobbing process, lattice-type ball mill liner wear set with the cylinder body, has good wear sex. Lattice-type ball mill smooth, reliable Pingdingshan Pingdingshan ball mill manufacturer equipment manufacturer distribution machine. Rod mill factory construction: the construction of a rod mill and ball mill is basically the same structure, the difference between the conical end cap rod mill small curvature, with smooth lining the inner side, while the cylinder is not smooth in general use liner; large diameter hollow shaft of discharge. Rod mill plant works: rod mill and the motor periphery by reducer gear drive quality-driven high-manganese steel tube, rod mill built with the right amount of grinding media - steel bar, steel bar and frictions in the centrifugal force be rotated under the action of force increase to a certain height of the cylinder, and then because of their own weight was falling into the falling state of the whole movement has been the impact of the materials for crushing and grinding effect, continue to break the material thin, less than lining sieve slit plate material is discharged in time. Rod mill plant use: Basically, only the production of wet rod mill, rod mill can be used to grinding various ore and other raw materials hardness is particularly suitable for handling a variety of brittle materials, are widely used in black, non-ferrous metal ore and non-metallic mineral processing plant and the chemical industry, building materials and other industrial parts.

    Ball Mill main function is to block the material through the rotating ball mill, ball mill and the ball in the interaction, ground into powder form. Process is as follows:
    Into the raw materials - stamped seamless cover - start ball - time - to stop milling - automatically or point upward move will Inlet - into the discharge gate cover - start ball - time - to complete discharge, producing complete .
    1) milling stage
    Start the ball first, if the feed position of the mouth not in the correct position, can be manually jog to the ball mill feed inlet back to the right place, at this time can be the raw material into the ball mill. After loading of raw materials, will be transferred to a position switch for milling, ready to enter the milling stage.
    Set the milling time, if not set, will use the original time settings. Press the start button to start the ball began to ball milling. The ball appears in the milling state, and shows the remaining milling time.
    Set time, the ball automatically stop, will show the end of the ball milling, in the discharge phase.
    2) Discharging stage
    Will feed into the mouth of the lid covered with a grid of the discharge, when discharging into a feed inlet port, will reach the discharge position of switch gear, start the ball mill. Ball is displayed in the discharge phase of the station and shows the remaining discharge time required. Set time, the automatic stop the ball, and just above the discharge port is in place.
    To achieve the main functions:
    1) ball mill Technology Section in strict accordance with the time set down;
    2) the time to keep function under fault conditions (ie, after the recovery is not in accordance with the grinding time remaining to complete the operation);
    3) have run the process parameters display, set, record and alarm display, record;
    4) Automatic homing
    In order to improve production efficiency, without operator action to each point in the correct location of the feed port, shut down automatically after every ball back to the correct location.
    5) System security
    The operator to obtain the appropriate permissions to the user name and password in order to carry out normal operations, and record relevant information.
    To prevent the misuse in the field operator, set control authority; field devices in normal operation and maintenance, the right to remotely control the computer.
    6) system capable of manual / automatic selection, remote / local boot device authorization, each subsystem independent of each other, a single equipment failure will not affect the whole system.

    2010年12月2日星期四

    Nissan manufacturing thousands of square field of sand production line

    Sand system equipment (river pebbles made of sand, limestone, sand, sand tailings) has been well received by the construction industry, sand and gravel plants, road construction and other crusher industries at home. System of sand production line by the vibrating feeder, jaw crusher, made of sand, vibrating screen, sand washing machine, belt conveyor and centrally electric controlling equipment such as composition, design output of 30-300 tons per hour in general, to meet processing needs of different customers can be equipped with cone crusher, dust removal equipment.
    Sand production line manufacturing process:
    Large stone by the hopper feeder uniform movement by the jaw crusher for primary crushing, stone after crushing by the belt conveyor to the Jaw Crusher for crushing, stone crusher machine again after a crushing jaw after then fed into the conveyor system of sand machine, sand machine made out by the sand material transported by the conveyor to vibrating screen for screening, screening out of the sand several different specifications to meet the size requirements of the sand belt conveyor has finished sand washing machine into the final washing, the sand does not meet the size requirements then the belt conveyor system of anti-sand production line to a re-sand system, the formation of closed several cycles, product size in accordance with the requirements of users combination and grading, for the protection of the environment, can be equipped with secondary dust removal equipment.

    Lime production, lime production equipment

    Qualified Crusher within the limestone deposited in the silo, the elevator upgrade and transported into the preheater at the top of silo. Preheater top of the silo, from up and down 2 level meter control feeding quantity, and then through the limestone under the feed tube will be evenly distributed to the preheater Calvary room.
    Limestone preheater kiln flue gas is 1150 ° C heated to about 900 ° C, about 30% of the decomposition, the hydraulic plunger into the rotary kiln, the limestone in rotary kiln sintered decomposed into CaO and CO2. Generated after decomposition of limestone into the cooler, the cooler is cooled to the cold air into the drum 100 ° C about discharge. The heat exchange of the 600 ° C hot air into the kiln and gas combustion. Cold gas in the blended into the bag filter by the induced draft fan, and then the exhaust fan into the chimney.
    By the vibration of the cooler of lime feeder, bucket chain conveyor, bucket elevator, belt conveyor into the lime finished products. Whether screening according to customer requirements and other processes.

    2010年12月1日星期三

    Ball Mill work

    Ball mill is broken and ground into a pulverized coal machinery, it is important pulverized coal boiler auxiliary equipment. Coal grinding process is broken and the surface area of coal has been growing process. To add a new surface area, must overcome the binding force between the solid molecules, and thus need to consume energy. Coal grinding mill was made of coal, mainly through the crush, break and crush three ways. Process in which crushed the energy consumption of most provinces. Pulverization process of the most expensive energy. Various mill in the milling process are both the above two or three ways, but mainly depends on what kind of mill type.
    Many types of steel ball, grinding coal at the speed of the working parts can be divided into three types, namely low-speed mill, pulverizers and high-speed mill.
    Ball mill use and the use of overview:
    Ball is the material to be broken, and then to smash the key equipment. Ball mill is widely used in cement, silicate products, new building materials, refractory materials, fertilizer, ferrous and nonferrous metal and glass ceramics and other mineral production industries of all kinds of ores and other grind-able materials can be dry or wet grinding.
    Ball Mill Work Description:
    This machine is a horizontal cylinder rotating mechanism, outer gear, the two positions, lattice-type ball mill. Material from the feed device into the compound by the air shaft into the mill screw evenly the first warehouse, the warehouse has ladder liner or corrugated liner, built with different specifications steel ball, rotating cylinder produces centrifugal force to the ball a certain height After the fall, have severe impact on the material and abrasive. To coarse grinding of materials in the first position, after single-layer diaphragm plate into the second position, the positions are lined with flat lining, the steel ball, the material to further grinding. Powder discharged through the discharge grate plate to complete the grinding operation.
    Overview of structural characteristics of ball mill:
    Ball Mill from the feeding part, discharging the Ministry of Rotary Department, the Ministry of transmission (reducer, small transmission gear, motor, electric control), and other major components. Cast steel hollow shaft, lined with removable, rotary gear hobbing by casting process, the body inlaid cylinder liner wear, has good wear resistance. The machine running smoothly, work reliably.
    According to materials and methods of discharge, optional dry ball mill and wet lattice-type ball mill.

    2010年11月30日星期二

    Discuss industry trends crusher

    China Jaw Crusher history of the development section, after a long practice requires appeared jaw crusher, hammer crusher, impact crusher, impact-type third-generation Sand and Sand.
    Eighties of last century's machinery industry is still in the low period, when economic development is at a relatively steady state, are catching up with the development of China's economy flat, in general machinery industry has a cyclical development, generally Ten years is a cycle, the compliance with the order is from the early development of the industry gradually to the peak periods of peak period is over, and gradually the low period of the machinery industry. This development cycle is always the same, and it is not change.


    Jaw Crusher and economic development of the industry is closely related to the chain. China's economic development since the eighties from the beginning to the momentum of rapid development of open, no matter which industry, including highway construction in China's railway construction, and real estate development, mining, water industry in the rapid development, with their promote the development of an economic industrial chain, repair to highway use of cement, gravel, sand, etc., which ushered in the mining, sand and gravel industry, the rapid development of the peak, while the production of sand and gravel mining and use to broken equipment, broken machinery so that the gradual development of the industry into the peak.

    PE compound pendulum jaw crusher series dealing with the compressive strength of not more than 250Mpa function of the ore or rock, with a broken ratio, product size uniformity, low power consumption and easy maintenance. Metallurgy, mining, building materials, transportation, machinery and other industries ideal crushing equipment.
    PEX crushing crusher for mining, transportation, building materials, quarrying, cement and other industries to provide new energy efficient crushing equipment. High yield, crushing ratio, the small particle size, uniform, smooth and so on.


    Jaw Crusher development of the industry and to promote the development of steel industry accelerated the development of each industry are closely related with the industrial chain. In the crushing machinery industry entered its peak, crusher market is also very, very hot, because at the time, local government departments on the supervision of mining is not large, some private individuals to see the huge profits of mining mining industry. So at that time almost overnight, the local small-scale mining plant are to take out, so the sale of mining equipment at the time the form is very hot, resulting in a situation of short supply of mining equipment industry, situation, or even customers to the plant inside, as long as I saw a device, immediately to buy back the production, do not care about the quality of work product. So that is the crusher peak of development of the industry, but also the peak mining industry. However, the peak period in the machinery industry, the problems are caused by many, not just the enterprise itself, as well as government departments at all levels of management in a loose state. So whether the development is low during the peak period, we still have to look long-term release.

    2010年11月27日星期六

    Jaw crusher maintenance

    (A), the preparatory work before moving over
    1, small check is good lubrication of bearings, bearing plates and elbow joints have enough grease.
    2, should carefully check all fasteners are securely fastened.
    3, check the drive belt is good, found a broken belt shall be updated with the phenomenon.
    4, check whether the ore crushing cavity or other debris, if debris should be removed to ensure that the machine no-load start.
    5, check whether the bolts from the top to return, gasket compression, T-bolts are tightened, should be noted that non-crushing machine at work from the top bolt and adjust the seat contact.
    (B), the start crusher
    1, the checks to prove that part of the machine and drive the situation properly, before they can start.
    2, the series crusher can only start with no load.
    3, the start, we must use a bell or other signal prior notice.
    4 starts, if found to have abnormal situation, should immediately stop operation, to identify and eliminate abnormal situation, only to restart the crusher.
    (C), use and maintenance of crusher
    1, crusher normal operation only after the feeding began.
    2, the crushing of materials should be uniform to join the crushing chamber, the side feeding should be avoided or filled with feeding, to prevent overloading or under unilateral overload.
    3, under normal circumstances grinding mill, the bearing temperature rise of not more than 35, the maximum temperature does not exceed 70, as more than 70 should be immediately shut down, find out the cause to be removed.
    4, stop, you should first stop feeding the work material to be broken completely discharge chamber was broken only after the turn off the motor.
    5, in broken when, if the issues caused by broken cavity stop blocking material should be immediately shut down the motor, the material must be removed only after the restart.
    6, tooth wear plate at one end, you can turn around to use.
    (D), crusher lubrication
    1, the constant attention and lubrication wear a timely manner, can guarantee the normal operation of the machine and extend the service life.
    2, the grease used crusher, according to the use of the machine temperature, location and other conditions to decide. General use of calcium-based, sodium or calcium sodium based grease.
    3, add bearing grease to 50-70% of volume, stone crusher must be replaced once every three months, for grease application of clean gasoline or kerosene, carefully cleaning the roller bearings.
    4, elbow pads touch plate and bracket, the machine must be filled in the grease before starting.

    2010年11月21日星期日

    Ten year trends in the development of mineral processing equipment

    Through the combination of mechanical plant on-site observation of dynamics grinding mill, ball mill found in the actual production of coarse there is a reasonable position phenomenon, is now thrown down on the ball mill grinding body type and material movement trajectories and between force analysis, and explore the causes of this phenomenon. Found that the feed mill at the feed point selection device exists unreasonable. Thereby reducing the ball mill grinding efficiency and increased consumption. So in order to optimize the feeding device, to improve the irrational, the need for improvement of the feed point.
    Improved mill feed inlet design
    In recent years, as new technologies, new technology continues to improve, when the output of Taiwan ball great changes have taken place, with the specifications of the raw material open and closed-circuit grinding mill table and more than double the yield difference. Into the grinding particle size reduction, increased mill ventilation, to improve the mill's output, quality played a key role. To improve the mill ventilation, many factories have been made in this great effort and exploration. Set in the grinding mill to increase the blast and the combination of the end of ventilation, received a good effect, but correspondingly increases the energy consumption of the fan tail mill dust collection system with treatment difficult. Therefore the most effective way is to improve the feed inlet.

    First, the device integration trend. As the number of modern dressing products and product objectives increasingly demanding taste. Therefore, when the selection of equipment manufacturers of crusher, prefer complete production line, due to the production line equipment for other equipment is optimized, can improve production efficiency and ease of manipulation.
    Second, the process of localization trends. With the domestic research level, the recent patent application processing equipment significantly more emphasis on the support of their research results. Well, this will also encourage excessive scientists, mineral processing equipment for China to catch up with the world interested in the contribution to the advanced level.
    Third, the device intelligence trends. As more research institutes, new thinking and new methods developed, and a variety of intelligent control theory applied successfully in other industries, with more advanced intelligent processing equipment manufacturers in the laboratory for debugging. I believe in the near future, a large number of new products will be filled with the intelligent processing equipment market.
    Fourth, the production process of the trend. For a modern mineral processing nearly 40 years of experience, the major equipment manufacturers have begun to consider custom expert system for the entire production process customized for different geographical environments the most reasonable solution.
    Five semi-automatic welding trend. This technique mainly for mineral processing equipment in contact with highly corrosive materials in the machine. This can reduce the oxygen by the application of welding, the use of new solder can improve the durability of the equipment 50% -75%.
    At the control simple trend. In recent years, manufacturers of equipment to facilitate rapid application in the production line has been gradually integrated one-touch control, even if the manufacturers do not have professional machine control temporary staff can be achieved by simple control production. This is an expert on technology of enrichment.
    VII, green energy trend. Since early this year after the Copenhagen conference, jaw crusher world leaders at the summit has made commitments. The industry is now the state will take measures to reveal excessive production of electricity industry to adopt more stringent environmental control. Then, using advanced technology applications of green energy-saving products selected will give a better chance of survival plants.
    VIII, manufacturing orders trend. In the past, device model, performance, and more fixed, firms tend to have a certain stock. The specific customer needs at this stage because the increasing refinement of compounds, a direct result of manufacturing companies have to pursue the theory of the nominal zero inventory efforts.
    September, equipment form the trend in Europe and America. In the experience of other countries, advanced manufacturing technology, shape of the device technology, the shape of the design of mineral processing equipment will gradually move closer to Europe. The new shape design can often make the customers more choice and want to try, long-term view, conducive to the overall development of the field of mineral processing equipment.
    Ten, the device large-scale trend. Mainly for ball mill, the state has explicitly introduced the policy to terminate the 3.5m diameter of the end of the year following the production of small ball. This will inevitably lead to the manufacturers in order to seek development and survival, and have a higher technical difficulty of the new trial and a large mill.

    2010年11月15日星期一

    Sandfire seeks $102M for DeGrussa

    SANDFIRE Resources has come back to the market to raise $A102 million to accelerate development at its DeGrussa copper-gold project in Western Australia after its share purchase and offtake deal with Korean smelting giant LS-Nikko officially keeled over last month.

    The funds will be raised via a 1 for 12 accelerated non-renounceable pro-rata entitlement offer at an offer price of $6.60 to raise around $72 million and will consist of an institutional component and a retail component.
    The entitlement offer price represents a 15.2% discount to Sandfire’s closing price on Monday.
    Sandfire will also launch an underwritten institutional placement to raise a minimum of $30 million.
    The proceeds of the raising, as well as Sandfire’s existing $35 million in cash resources, will go towards completing the current pre-feasibility study, scheduled for this quarter, and the definitive feasibility study, scheduled for the end of the first quarter of calendar 2011.
    Funding will also go towards other predevelopment and infrastructure activities required for DeGrussa as well as completing the approvals process.
    Funds raised will also be spent on pre-stripping of the initial open pit which is targeted to begin in the second quarter of calendar 2011, as well as for deposits on key long-lead items required for the proposed 1.5Mtpa concentrator and for working capital.
    Sandfire managing director Karl Simich said after considering funding alternatives with corporate advisor Goldman Sachs, the entitlement offer and placement was considered the best option for shareholders.
    “Firstly, it facilitates the introduction of new Australian and international institutional investors to the company’s register while allowing existing shareholders to participate on attractive terms,” he said.
    “Secondly, it enables the company to complete a DFS and enter into project funding discussions in a strong financial position and with the ability to commence development of the high-grade open pit resources at DeGrussa while construction of the plant and underground development commences. This will ensure that we are able to commence copper-gold production in a timely manner.
    “Finally, it ensures that we can maintain our robust exploration activities at DeGrussa, both within the 6-kilometre long near-mine corridor and, more broadly, within our 400 square kilometre tenement position, where we consider there is potential for additional new discoveries.”
    Recently, the company announced plans to increase the targeted design throughput rate for DeGrussa processing facility to 1.5Mtpa following a phase 3 resource upgrade to 10.67 million tonnes grading at 5.6% copper, 1.9 grams per tonne gold, 15gpt silver containing 600,000t copper, 660,000 ounces gold and 5.1Moz silver.
    Sandfire expects to announce a further update to the resource inventory later this month after completing infill drilling and a revised resource estimate for the dispersion zone of the near-surface oxide copper.
    Today’s capital raising news comes after Sandfire announced last month its share purchase and offtake deal with Korean smelting giant LS-Nikko was effectively over.
    Shares in Sandfire are in a trading halt that is expected to last until the release of an announcement or the start of trading on November 18.
    Prior to entering the trading halt, Sandfire was trading at $7.78.

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    All aboard Brockman 4

    AN on-location look at Rio Tinto’s billion dollar modern mine, set to centralise its existing and future Pilbara operations and double iron ore output as it continues to expand. By Brooke Showers

    Brockman 4 is the latest addition to Rio Tinto’s iron ore mining operations in Western Australia’s Pilbara region.
    The $US1.5 billion mine was opened by Parliamentary Secretary to the Premier, Treasurer and State Development Minister Helen Morton MLC and Rio Tinto chief executive iron ore and Australia Sam Walsh.
    Located 60 kilometres northwest of Tom Price, the mine is expected to have an initial output of 22 million tonnes per annum of high-grade iron ore with the potential to expand to 40Mtpa.
    With a 30-year mine life, Brockman 4 is also ideally positioned to serve as an infrastructure service hub for the future development of nearby deposits.
    “As we have made clear recently, growth in our Pilbara iron ore operations is back on the agenda and Brockman 4 features significantly in our future plans,” Walsh said.
    “The mine has been planned very much for future expansion to double the initial capacity in mind, and we would expect that additional tonnage to form an important component of our planned expansion of Pilbara capacity to 330 million tonnes per annum.”
    The mine workforce has 530 full-time employees, of which 16% are female and 8% are indigenous – both figures that Walsh intends to increase. He said Brockman 4 had attractive working conditions, including an 8 and 6 roster.
    The camp facilities are first rate, a growing trend at many remote minesites. Brockman 4 has a swimming pool, fitness centre, tennis courts, wet and dry mess, and a netted enclosure to polish up the golf swing.
    It has 1000 dongas, all including a phone, plasma television, fridge, air conditioning, spacious shower and vanity unit.
    There are two different locks on the drawers and wardrobes, so employees can secure their personal items onsite while at home on a break. This allows each donga to be shared by two workers on opposing rosters.
    Utilising the latest equipment, Brockman 4’s open cut mining operation hosts three 500t Hitachi shovels, a 350t Hitachi excavator and 15 Komatsu 830E 220t dump trucks.
    Supporting infrastructure onsite includes a fixed plant maintenance workshop, tyre and light vehicle maintenance facility, and integrated process and potable water systems.
    It has a two-stage dry processing plant, including primary and secondary crushing, sample stations and train load-out system.
    The anticipated daily movement of materials is 160,000t and Rio Tinto expects to load 20 trains per week, linked by the 50km rail network.
    The hub model has the potential to align all the Rio Tinto mine operations into one central train system for ship loading.
    “Mesa A/Warramboo and Brockman 4 demonstrate our strategy of substantial investment in high-quality, long-life, low-cost assets,” Walsh said.
    “They are outstanding deposits, close to existing infrastructure, and each promises excellent commercial returns.”
    Brockman 4’s pit designs are expected to yield about 600Mt of high-grade ore of more than 60% iron and 450Mt of a lower 50-60% iron grade, which will be stockpiled for future processing.
    Rio Tinto also has studies underway to take its Cape Lambert port from 80Mtpa to 180Mtpa to help bring its Pilbara total to 330Mtpa.
    The company also will have five new mines or mine expansions to meet capacity.
    Walsh expects the free on board price for iron to drop 13.3% in the December quarter of this year to $US127 per tonne.
    Brockman 4 has land-use agreements in place with traditional owners, the Puutu Kunti Kurrana Pinikura and Eastern Guruma people.
    Rio Tinto is committed to having all employees in WA complete cultural awareness courses with Aboriginal leaders to strengthen the company’s understanding of Aboriginal people.
    The company has created better ways to support its Aboriginal neighbours in the workplace through this knowledge.
    The strategy for Rio Tinto to focus donations into four key areas – education, health, the environment and culture – has helped the company address issues facing the community. In 2009 the company contributed $27.8 million in community investment activities in WA.
    Brockman 4 has a swimming pool, fitness centre, tennis courts, wet and dry mess, and a netted enclosure to polish up the golf swing.

    China Mining equipment CO.,Ltd is a professional manufacturer of mining crusher equipment and industrial grinding mill in China.
    Mian Site: http://www.ucrushers.com
    product list:

    mobile crushing plant,raymond mill manufacturer,vertical roller mill

    Iron ore chauffeurs

    YOU know iron ore is hot when a limousine company tries to roll over a couple of Pilbara wannabes. But what is the latest Chinese interloper driving at? The Metal Detective by Stephen Bell

    Hong Kong-based Wah Nam International achieved several firsts last week when it unveiled separate scrip bids for Brockman Resources and FerrAus. It wins a prize for corporate diversification.
    Wah Nam does own a copper mine in southern China, but its core business seems to be offering limousine and coach services from Hong Kong airport.
    So a multi-billion dollar plunge into Western Australian iron ore mining and infrastructure is a bit of a U-turn.
    Another first is the volume of paper involved in the bid.
    Wah Nam has 3.9 billion shares on issue, valuing the company at $6.7 billion Hong Kong dollars, or $A870 million.
    According to its offer document, it may have to issue up to 4.5 billion more shares if all options in Brockman and FerrAus are exercised and the offers succeed.
    The notional $1.2 billion bid value is way more than Wah Nam’s current market capitalisation.
    Yet the company talks confidently about consolidating Brockman’s and FerrAus’ projects and potentially building a transport corridor to Port Hedland.
    It is a much bigger cab ride than the Wah Nam chauffeurs are used to.
    A ride in a Mercedes Benz limousine from Hong Kong airport to Kowloon Bay, a distance of roughly 40 kilometres, will set you back $100.
    It is around 300km from Brockman’s Marillana deposit to Port Hedland and the tab for a new railway is $3-4 billion – pretty big money for a small conglomerate.
    The Metal Detective can only assume Wah Nam is a stalking horse for Chinese steelmakers and infrastructure groups – the most likely funding sources for such a big infrastructure play.
    MD also quite likes the theory that the offer may be a clever ploy designed to flush out third-party bids.
    Given that Wah Nam already holds 19% of FerrAus and 22.6% of Brockman, that scenario may deliver it a nice trading profit if the likes of Fortescue Metals Group were to enter the fray.
    Credit Suisse notes that FMG’s recent refinancing lifted the merger and acquisition restrictions associated with its 2006 senior notes covenants.
    “The new notes allow FMG to be more corporately active,” it says.
    Although FerrAus and Brockman currently own stranded deposits, the broker says it would be “amazed if FMG has not already had serious discussions with Brockman and perhaps FerrAus too regarding possible BCI-style infrastructure access JVs”.
    Longer term, the bank sees a risk that FMG’s Chichester projects will not reach their 90 million tonne per annum target, meaning that the shortfall could be made up with additional ore from projects such as Brockman/FerrAus.
    As it stands, MD can’t see many Brockman and FerrAus punters jumping at the chance to swap their investments for wads of limousine-backed Hong Kong paper, even if Wah Nam is promising a listing on the Australian Securities Exchange down the track.
    If nothing else, it illustrates China’s keenness (or should that be desperation?) to snaffle independent Aussie iron ore resources, no matter how large the hurdles.
    One reason may be that the Asian Dragon sees continued tightness in the market ahead.
    Recent work by Macquarie suggests that supply-side iron ore growth is set to underperform relative to stated plans in coming years.
    Thus, the long-feared market surplus may still be some way off.
    “There is a huge volume of potential supply on paper, but myriad issues commonplace to the industry are likely to cause significant delays,” Macquarie said, citing problems such as infrastructure, environmental permitting, spiralling capital costs and the “disinclination” of equity markets to finance projects.
    As a result of delays and the “degradation” of Chinese mines, increased volumes of higher cost Chinese domestic ore are required to balance the market for longer, the bank says.
    Cost inflation in the Chinese domestic industry is thus key, and “we think marginal suppliers will keep the average spot price well supported above $US135 per tonne during 2011-13”, it said.
    The other interesting angle to Wah Nam’s bid is the effect on the North West Iron Ore Alliance, of which Brockman and FerrAus are members, alongside Atlas Iron.
    The obvious question is why didn’t Wah Nam bid for Atlas?
    It is not as though Atlas is a lot more expensive – its market cap is $A1.6 billion – and it is already in production.
    Perhaps Atlas is part of another yet-to-be-unveiled Chinese gambit, perhaps involving Ridley and/or Balla Balla magnetite.
    Apparently it is business as usual at the NWIOA as it seeks to finalise the feasibility study on its $2.1 billion port at South West Creek by early next year.
    The ultimate aim is to start shipping from the new port, which is critical to Atlas’ long-term growth ambitions, by 2013.
    Even before the bid lobbed, that target was seen as highly ambitious by most in the industry, given the amount of environmental permitting and construction involved.
    Industry insiders believe that 2014 is probably a more realistic aim for the alliance’s two berths to start shipments.

    Letter to the editor: Dryblower remembers Marengo and the day George Soros broke the bank

    Following yesterday’s Dryblower column on George Soros and his investment in Marengo Mining, MiningNews.net has published a reader’s response to the column.

    I note that reference was made to Marengo Mining Ltd in today’s edition of Mining News.
    In regard to the article by Dryblower on George Soros I would like to clarify a number of points.
    In September 2009 Quantum Partners LDC (a member of the Soros Group) acquired a 19.9% stake in Marengo Mining, by subscribing $A10 million to a $A22 million institutional placement, raised in both Australia and Canada.
    Marengo Mining is also listed on the Toronto Stock Exchange and has been since April 2008, in addition to its listings on the Australian Securities Exchange and the Port Moresby Stock Exchange (PNG).
    Marengo Mining’s Yandera Project is located in the Independent State of PNG and, as such, will not be affected by the federal government’s proposed super profits tax.
    Regards
    Les Emery
    Managing Director
    Marengo Mining
    Letters to the editor are always welcome. Please keep them short. Some submissions may need to be edited.

    China Mining equipment CO.,Ltd is a professional manufacturer of mining crusher equipment and industrial grinding mill in China.
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