PFW Series Impact Crusher

PFW series impact crushers are the latest development of impact crusher  based on sbm’s more than 20 years experience and leading technology in PF impact crusher. PFW series impact crushers have the features of heavy duty rotor design, unique hammer locking system, interchangeable wearing parts, and easy maintenance.

This series impact crushers provide customers low capital cost solutions, outstanding performance, good cubical shape, lowest operation cost per ton, and wide materials applications.

PFW Series Impact Crusher (Hydraulic) application The hydraulic impact crusher is mainly used for metallurgy, mining, cement, chemicals, refractory and ceramic industries sector. In highway construction, water conservancy projects, building rubble and sand processing, the crusher machine is also widely used.

PFW Series Impact Crusher (Hydraulic) Main Features and Benefits1) Heavy duty rotor design2) Unique hammer locking device3) Interchangeable liners4) Flexible application in primary and secondary crushing5) Easy operation and simple maintenance

Cone crusher,do you know cone crusher?

Note: Original Article by sbmzhcn.

Permalink: http://sbmzhcn.appspot.com/2010/08/29/172003.html

Applications of Cone Crusher:

Cone crusher  is a kind of crushing machine commonly used in mining, metallurgical industry, construction, road construction and chemical industry.
Our cone crusher can be used to crush hard and medium hard minerals, rocks, iron ores, limestone, copper ores, quartz, granite, sandstones, etc.

Features of Cone Crusher:

1. Our cone crushers has the characteristics of large breaking force, high efficiency, high crushing capacity, low operating cost and long service life. It is convenient to operate and is economical.
2. The crushed materials are of equal size, thus reducing circulating load.
3. Large and medium-sized crushers adopt hydraulic chamber-cleaning systems, which will help reduce the down time.
4. Cone crushers with different chambers are available, to meet our customers' requirements.
5. Grease seal can effectively avoid the blockage of water feeding system and drainage system, as well as mixing of water and oil.
6. As the overload protection device, spring safety device allows foreign matter and iron pieces to pass through the crushing chamber without jeopardizing machines.

Components of Cone Crusher:

Cone crusher mainly consists of frame, horizontal axis, cone brake, balance wheel, eccentric sleeve, upper crushing wall (welding cone), down crushing wall (movable cone), fluid coupling, lubricating system, hydraulic system and control system.

Cone Crusher Working Principle:

1. When cone crusher is working, motor drives the eccentric sleeve to rotate. The eccentric sleeve drives the transmission shaft and cone part to make swing movement. When they swing to the extent that the surface of the crushing wall is close to the roll mortar wall, the rocks and ores are pressed and crushed.
2. Joint between supporting sleeve and frame is compressed by spring. When metal block and other materials that can no be crushed fall into the crusher, spring will be out of sharp and discharge the objects.
3. When the materials that can not be crushed pass through the crushing chamber or the machine overloads, the spring safety system makes the cone discharging hole become larger. When objects are discharged from crushing chamber, discharging hole will automatically reset. Cone crusher resumes normal operations.
4. The surface of crushing chamber is covered with wear-resisting high manganese steel lining plate. Size of discharging hole can be adjusted hydraulically or manually.

Structural Characteristics Of Cone Crusher:

1. This crushing equipment has compact structure and high productivity. It adopts bowl-shaped bearing which has high precision. Concentrated thin oil lubrication system is also used.
2. The size of the discharge opening can be adjusted by propelling cylinder. When the materials that can not be crushed enter into the crushing chamber, the spring safety device can protect the equipment.
3. This machine adopts grease seal to avoid mixing of water and oil. When sealing parts are worn, spring can help them recover sealing function. When the thickness of sealing part reduced to 1/4-1/3 of the original thickness, users should replace the sealing part.

See also symons cone crusher

Symons cone crusher (sales code, CS series symons cone crusher) is used widely at present, Compared to the traditional spring cone crusher, the structure of the Symons spring cone crusher with high-efficiency is more perfect, and its technical parameters are more advanced, and Symons cone crusher machine has excellent performance in the manufacture, installation, operation and maintenance. Symons cone crusher is the best choice for mining crusher with fine crushing, high productions and low maintenance.

Symons cone crusher is widely applied in cement making industry, building, sand making, metallurgical industry, etc. The cone crusher from China is suitable for both metallic minerals and non-metallic minerals, such as iron ore, nonferrous metal ore, granite, limestone, quartzite, sandstone, pebble, etc.

The picture of cone crusher and symons cone crusher

  

Also a brief description of ball mill

Note: Cross posted from sbmzhcn.

Permalink

As a piece of mineral processing equipment, a ball mill is widely used in beneficiation, building material and chemical industries. Ball mill is suitable for dry-type ore grinding and wet-type ore grinding. According to different discharging methods, ball mills fall into grate ball mill and overflow ball mill .

Working Principle:
Our ball mill is of horizontal, cylindrical and tubular structure. It comes with two cabins and is a grate ball mill. The materials are evenly fed through the charging device to first warehouse where there are step scales boards, corrugated scale boards and different specifications of steel balls. When the cylinder rotates, the centrifugal force produced causes the steel balls to impact and grind the materials in the ball mill. The materials are then lead to the second cabin for further milling until they turn into powders and are discharged from the outlet.

Ways of Improving Productivity:
In addition to manufacturing ball mill, we also carry our research on improving its productivity. Generally speaking, the productivity of ball mil can be improved by
1. adding fine crusher before the ball mill.
2. improving grinding system to achieve better grinding efficiency.
3. adding powder concentrator..

Range of Applications:
Ball mill is a mineral processing machine for milling the materials into powders after they are crushed. It is widely applied to the production of cements, silicate products, building materials, fireproof materials, fertilizers, glass, ceramics as well as nonferrous and ferrous metal processing industries. It could carry out dry and wet millings on different materials.

Structural Features:
This ball mill is made up of feeding part, discharging part, gyre part, transmission part (transmission part includes reducer, small transmission gear, generator and electrical control) and so on. It enjoys features like good abrasive resistance, stable and reliable operation.
Inner structure of the ball mill is made up of lining plate, grate plate, diaphragm, feeding and discharging devices. The lining plate is used to protect the tank body in order to avoid the impact and abrasion from materials. Different types of lining plates can be used to adjust the movement of materials. Our lining plates are provided by Luoyang anti-abrasion academe and have a large share in the global market with their fine design.

Usage in Mineral Processing:
Minerals are firstly crushed by jaw crusher until they are crushed to suitable sizes. They are then equally fed to a ball mill with a hoister and a feeder. Later, they are further crushed and milled in the ball mill. Finally, fine minerals are classified by a spiral classifier with the principle that solid particles sink at different speeds in liquid.

What kind of technical features of the CS Series Cone Crusher ?

Technical Features of CS Series Cone Crusher

1、 high performance

With the better cavity design and combination of the reasonable speed and stroke ,the cone crusher can make more power under the same flexible cone .Therefore ,this kind of cone crusher have higher performance and production capability compared with the similar cone crusher .

2、better particle components

With the principle of layer crushing ,the final products features high cubic shape ratio ,low ratio of needle shape stone ,and more even particle size .

3、high stability

When some non-crushing materials like the iron enter the machine ,the iron-pass protection equipment will automatically release them and then return the original position .And the iron-pass protection equipment have the fixed discharge opening returning point so that it can return to the original discharge opening after the non-iron materials pass the crushing cavity .

4、 convenient cavity cleaning

If the crusher stop the working function under the overloading condition ,the hydraulic cavity cleansing system will quickly clean the crushing cavity ,which will greatly reduce the off-time .

5、 high reliability

we adopt large ram spindles ,heavy main machine frame and independent light oil automatic control lubrication system ,which ensure the robust equipment structure and reliable function .

6、onvenient maintenance and operation

All of the spare parts can be torn apart from the top and side board and so did the fixed and flexible cone .And the bronze slide bearing can maintain the quality bearing capability under the condition of high impact shaking crushing condition and also features more economic and convenient maintenance than the rolling bear .

7、low production cost

With the high production capability reliability , and convenient maintenance ,it greatly reduce the production cost .

8、wide application

CS series Symons cone crusher can make its full advantages to apply various crushing crafts from the super coarse to the fine crushing , from the fixed crushing to the mobile crushing .
CS series Symons cone crusher have a wide crushing cavity choice from super coarse crushing to the fine crushing ,which means we can choose the crushing cavity by the crushing crafts .

9、We adopt the segregate and multi-point control independent light-oil lubrication system to ensure the double-protection of its bearing ,thus realizing the automatic protection of the whole machine .

Permalinks: http://blog.rockscrusher.com/product-knowledge/what-kind-of-technical-features-of-the-cs-series-cone-crusher.html

Ball mill introduction

Ball mill is the material being broken, and then smash the key equipment . It is widely used in cement, silicate products, new building materials , refractory materials , fertilizer , black and non-ferrous mineral processing and manufacturing industries such as glass ceramics , of various ores and other materials can be carried out of dry ground or wet grinding . Applicable to all kinds of ball mill grinding ore and other materials , is widely used in mineral processing , building materials and chemical industry can be divided into two kinds of dry and wet grinding methods . According to Pai mine in different ways, can be divided into two grid -based and Overflow
Machine name
Ball Mill  (ball grinding mill)
Ball is the material being broken, and then smash the key equipment .
Ball mill is widely used in industrial production of high- fine grinding machine .
Many of its species , such as hand ball mill , horizontal mill, ball mill , energy saving ball mill , overflow -type ball mill , ceramic ball mill , ball mill and other lattice .
Applicable to all kinds of ball mill grinding ore and other materials are widely used dressing , building materials and chemical industry can be divided into
BallMillMachine
Two for the dry and wet grinding methods . According to Pai mine in different ways, can be divided into two grid -based and Overflow .
Work
Ball in aerated Conceter Preparation of equipment is the most important ball , he used lime, plaste, sand , slag and other materials grinding . Only material to the required fineness of grinding , and only after full mixing interaction can make the product meet the strength , the production of aerated concrete grinding is an important process, grinding process of consumption powder Large , ball mill is usually aerated concrete factory in the largest electrical equipment capacity .
Ball is a simplified level , and out of the hollow shaft and grinding materials and other components , simplified for the long cylinder , cylinder with grinding media cylinder for the plate Manufacturing, with steel liner and simplified fixed , usually steel ball grinding media according to different tube diameters and a certain percentage of load , the steel grinding media can also be used in paragraph
According to the granularity of abrasive material to choose , the material from the mill feed end of the hollow shaft into the cylinder body , when the ball Simplified rotation when the grinding media due to inertia and centrifugal force, Fritco Role , it posts to be near the cylinder liner on the barrel away , when was taken to a certain height , because of its own gravity has been into the falling , falling as grinding media to drum like projectile body material To smash .
Material from the feed device into the compound by air evenly into the mill screw shaft first warehouse , the warehouse there are ladder liner or corrugated liner , built in different specification steel balls , steel ball cylinder rotation produces centrifugal force brought to a certain height After the fall , on the material produced Blow And abrasive . To coarse grinding of materials in the first position after the board by the single compartment into the second warehouse , the warehouse lined with flat lining , there Ball mill, the material to further grinding . Powder discharged through the discharge grate plate to complete the grinding operation .
Cylinder in the rotary process, the phenomenon of grinding media have fallen in the fall to the material in the process of grinding effect , for effective use of abrasive , size of material to teach a large general purpose Ground 20 times , the body tube mill Body board with a separate compartment for the Er Duan , becoming dual position , the material into the first position when the ball was crushed , the material into the second position when the steel side of the material for grinding , ground of qualified materials from the discharge end Discharge hollow shaft of a small feed particles were pulverized materials , such as when the 2nd slag sand , coarse fly ash, mill shell from time to set up Clapborad Into a single storage tube mill , grinding of steel section sizes can be .
The machine is a horizontal rotating device, outer gear , the two positions, lattice-type ball mill . Material from the feed device into the compound by air evenly into the mill screw shaft first warehouse , the warehouse there are ladder liner or corrugated liner , built in different specification steel balls , steel ball cylinder rotation produces centrifugal force brought to a certain height After the fall , produce severe impact on the material and abrasive . To coarse grinding of materials in the first position after the board by the single compartment into the second warehouse , the warehouse lined with flat lining , steel ball inside , the material to further grinding . Powder discharged through the discharge grate plate to complete the grinding operation .

Article Origin:http://sbmzhcn.appspot.com/2010/08/26/138006.html

the classification of grinding mill

1.Ball Mill

The ball mill  is a key equipment to grind the crushed materials, and the ball mill is widely used in powder-making production line including cement, silicate, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc, and the ball mill can grind various ores and other materials with dry type and wet type. There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material. The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The ground materials are discharged through the discharging board thus the grinding process is finished.

2.LM Vertical Roller Mill

LM-series vertical roller mill is one advanced mill, adopting top technology domesic and abroad, and based on many years mill experiences. It can crush, dry, grind, and classify the materials.
LM series vertical roller mill can be widely used in such industries as cement, power, metallurgy, chemical industry, non-metallic mineral. It is used to grind granular and powdered materials into powder with required fineness.

3.MCF Coarse Powder Mill

The MCF Coarse Powder Mill series is a kind of new high-tech milling machine to meet the requirements of sand processing customers. Based on years research experience of our experts in the milling industry and considering recommendations & requirements of domestic and foreign clients, it is the ideal equipment to replace Raymond Mill, mill, ball mill, and other traditional which only process powder materials. It is high-efficiency equipment and widely applied in quartz sand, silica sand, foundry sand, fine sand and other sand abrasive industry. By being a component of closed production lines, it can produce various size products of better effect.

4 .raymond mill

From the shape look like a steel container to erect , with inlet , outlet and central parts of the feed port . MPS mill shape and some approximation . Raymond mill  stick rotation axis is vertical , MPS mill grinding stick rotation axis is the approximate level . Within the lower part of a motor driven mill grinding mill rotation will need to stick with the grinding material crushing or grinding through the air inlet of the wind blowing finished materials , mill within the upper part of separator can be separated coarse and fine powder , and then passed through the mill The wind machine out of the outlet from the collection

5.coal mill

coal mill must be crushed before grinding. The crushing plant common includes Vibrating feeder as feeding material to Jaw crusher, which is as primary Jaw crusher. If need secondary crusher, Cone crusher or Impact crusher can be used. After primary crushing, the coal can be feeding to Ball mill to fine grinding. To increase Ball mill effective, the vertical coal mill or coarse powder mill can be setted before Ball mill as pre-grinding.

Roller mill and ball mill

The ball mill's general explanation:

Using the whereabouts of the grinding ball and pebbles (such as impact) and polishing and grinding ball mill and wall materials and mixed grinding. When the ball mill turns, due to the wall and grinding ball grinding of the friction between the role. According to the direction of rotating grinding body after falling on again. This material is continuously by grinding. According to the shape of the body can be divided into cylinder ball mill , cone ball mill and tube mill (also called tube mill).

Advantage:

1. (1) can be used to dry or wet grinding mill,
2. (2) operating conditions, crushing machine in airtight, not within the dust flying,
3. (3), reliable operation, grinding, and convenient to replace body cheap,
4. (4) can be intermittent operation, also can be operated continuously,
5. (5) crushing explosive materials, grinding can be filled with inert gases to replace the air.

Faults:

1. (1) bulky heavy,
2. (2) operation when strong vibration and noise, must have the solid foundation,
3. (3) working efficiency, low energy consumption, bigger,
4. (4) grinding and the friction loss, and will contaminate products. Widely used in crushing hard material feeding.

Slag grinding

Blast furnace slag water quenching process as active mixing materials in the cement industry
That is widely used, application and clinker and plaster mixed with materials such as after grinding.
According to Chinese standard, ordinary cement slag cement admixture of 15% below, slag cement supreme mixing

For 70 percent, the actual production of slag cement admixture of general only 30% ~ 40%. Affect ore
Slag is the main reason of the admixture of clinker and slag mixed grinding, due to the relatively difficult slag grinding (mine The slag grinding clinker higher than 30%), the slag cement clinker components, components of coarse than Activity to improve, thereby affecting cement strength.

If the slag grinding to separate 4500cm2 / g more fineness and high-grade pure Portland again
Cement mixed, not only can improve the admixture of slag cement, and can be improved
Cement and concrete phychemical properties of slag, give full play to the potential value.
From the middle of the 1990s, the world more and more cement and steel enterprises Start using a separate grinding process of slag powder preparation. The equipment adopts mainly have three: the ball Roller grinding mill, and roller machine, roller mill by simple process, drying system has strong ability of low power consumption and Advantages and rapid development, China's largest steel enterprises most slag has been built Grinding mill production line.
φ 3.0 x 13m ball mill also can use single fan circle flow system.
From the mixture of slag mix station, feeding grinding mill , out of the ground
Bucket to efficient classifier, elected powdered sorting by belt conveyor to mine
Slag grinding with new feeding grinding, with a fine powder with air into the bag dust collector, take mine
Slag finished by air slides, hoist, slag repository to purify the air after discharge
The atmosphere.