cement vertical roller mill

For the cement industry were 30,25,20,10,8.8 tons of annual production and other industries use to meet the users of different materials with different yield and grinding requirements. At the same time I also have fine vertical grinding mill, the State Development Center has fine vertical cement mill as the "Eighth Five-Year" period focused on promoting the application of high efficiency, new energy-saving products.

The working principle of vertical roller mill

1, the main structure and function

Roller is the main material for rolling mill parts. Mill built with two pairs of roller, each pair of rollers mounted on the same shaft, rotating at different speeds.

Disc fixed to the reducer output shaft, the upper part of the disc material bed, the bed material a circular groove.

PRM-type separator mainly composed of vertical roller mill ,roller, disc, compression device, reducer, motor, housing and other components.

Fineness of separation is an important component of the decision, which consists of adjustable speed drives, rotor, guide blades, housing, meals, fighting off the cone material, composed of the outlet, and the separator works similar.

Pressure device is called the grinding pressure of the components provided by the high pressure oil station, hydraulic cylinder, rod, storage and other components, able to exert enough pressure roller grinding of materials.

2, the working principle of vertical roller mill

The material flow through the separator, in the role of guide vanes and the rotor, the coarse material to the disc from the hopper cone, the fine powder with a mill with air, dust collection device in the system to collect, is the product, the material in the contact process with the gas being dried to the required product water, by adjusting the angle and the wind guide vane separator rotor speed can be different fineness of the product.

Motor through reducer drive the disc rotation, the current hot air from the air inlet into the mill, the material from the feed opening falls on the central disc; the centrifugal force, material to the disc edge and moved across the ring groove on the disc by the grinding roll rolling and grinding, to the edge of the disc, moving through the air with the wind at the starting of large particles falling back to disc on the direct re-grinding.

Compared with the ball mill, vertical roller mill with the following features;

Compared with the cement vertical mill to mill the advantage is obvious, in order to establish a more intuitive description of the characteristics of MPS vertical mill, following the annual output of 10 tons of cement and production of raw material preparation system, for example, compared with the two HRM vertical mill and ball mill kinds of program indicators.

Grinding efficiency; drying large capacity; into the grinding material Liaodu large, medium and large vertical mill can save two broken; products, chemical stability; stars are homogeneous gradation, product Liaoduo uniformity is conducive to burning ; process is simple; low noise, less dust, the operating environment clean; metal loss, high utilization; use of the economy.

Assuming an annual output of 10 million tons of cement in order to meet production needs, may use the following two options:

Programme 1: HRM1300 vertical mill grinding system

Programme 2: @ 2.2 × 6.5 米 closed-circuit grinding system

Table II installed capacity of the two programs, technical and economic indicators in Table III.

As can be seen from the above comparison, the choice of vertical roller mill to reduce annual operating costs only 380,200 yuan, and the level of technology and products to improve yield, save energy, improve the operating environment, reducing noise and pollution, and enhance ability to adapt to other aspects of the play is not assess the long-term benefits.

Buy Raymond Notes

Raymond Mill is mainly used for a certain hardness of stone milling process, such as limestone, barite, marble, feldspar, talc and so on. Mill widely used in chemical, metallurgy, mining, etc., has been widely used milling machine, milling machine manufacturers produce so many, especially in the Central Plains, mills, factories more springing up. Bigger the market, also mixed, and no interpreter standards, the standards mill where? Many users purchase a topic of concern.

Milling machine in the purchase, the first thing most people, surely that is the Internet search, then enter the site, control their own requirements, select the appropriate mill model. Satisfied with the device to see before they enter the contact page, select, and grinding machine manufacturers to contact.

Mill more manufacturers, mills, there are many models, so when purchasing mill, you need to figure out what their own grinding materials, the number of feed particle size is required to wear the number of projects, and ultimately production requirements, and then the actual work site, mills, equipment manufacturers will give you to configure the entire process.

Standard milling machine is very flexible, no fixed requirements, the most important is to meet the actual demand.

Here are some common Raymond Model

3R1410 Raymond mill Host Motor: 6 pole 7.5KW, 6 or 6 very very 5.5KW 4KW, Fan Motor: 2 pole 5.5KW, parser: 6 pole 1.1KW, Capacity: 120 mesh 0.6-1.2 tons per hour, 200 Head 0.4-0.7 tons per hour, 300 item :0.15-0.4 tons per hour.

3R2115 Raymond Host Motor: 8 pole 15KW, fan motor: 4 pole 11KW, Analyzer Motor: 6 pole 2.2KW, Capacity: 120 mesh 0.6-2.5 tons per hour, 200 item :1.0-1.5 tons per hour, 325 Head 0.5-0.9 tons per hour.

3R2615 Raymond Host Motor: 8 pole 18.5KW, fan motor: 4 pole 18.5KW, Analyzer Motor: 6 pole 2.2KW, Capacity: 120 mesh 2.0-3.2 tons per hour, 200 item :1.2-1.8 tons per hour , 325 :0.7-1.2 tons per hour.

3R3715 Raymond Host Motor: 8 pole 22KW, fan motor: 4 pole 18.5KW, Analyzer Motor: 6 pole 2.2KW, Capacity: 120 mesh :2.8-3.8 tons per hour, 200-mesh 1.8-2.8 tons per hour, 325 Head 0.8-1.8 tons per hour. 3R3016 Raymond Host Motor: 8 pole 30KW, fan motor: 4 pole 22KW, Analyzer Motor: 6 pole 2.2KW, Capacity: 120 mesh :2.9-4 .2 tons per hour, 200 item :1.9-3 .3 tons per hour, 325 project :0.9-2.2 tons per hour.

4R2715 Raymond Host Motor: 8 pole 22KW, fan motor: 4 pole 18.5KW, Analyzer Motor: 6 pole 2.2KW, Capacity: 120 mesh :3.0-4.0 tons per hour, 200 mesh 2.0-3.0 tons per hour, :0.9-2 .0 325 tons per hour.

4R3016 Raymond Host Motor: 8 pole 30KW, fan motor: 4 pole 22KW, Analyzer Motor: 6 pole 2.2KW, Capacity: 120 mesh :3.0-3.5 tons per hour, 200 mesh 2.0-3.5 tons per hour, 325 project :1.0-2 .5 tons per hour.

4R3116 Raymond Host Motor: 4 pole 37KW, fan motor: 4 pole 30KW, Analyzer Motor: 4 pole 5.5KW, Capacity: 120 mesh :3.8-6 .0 tons per hour, 200 mesh 2.5-4.5 tons per hour, 325 Head 1.4-3.0 tons per hour.

4R3216 Raymond mill Host Motor: 4 pole 37KW, fan motor: 4 pole 30KW, Analyzer Motor: 4 pole 5.5KW, Capacity: 120 mesh :4.0-6.3 tons per hour, 200 item :3.0-5.0 tons per hour, 325 Head 1.5-3.5 tons per hour.

5R4119 Raymond Host Motor: 4 pole 75KW, 4-pole fan motor 55KW, Analyzer Motor: 4 pole B7.5KW, yield: 120 mesh :4.0-8.0 tons per hour, 200 item :3.0-7.0 tons per hour, 325 Head 1.5-5.0 tons per hour

Vertical roller mill grinding cement technology

International Progress:

• In the past 10 years, the vertical roller mill for cement and slag grinding technology has made an important breakthrough.

• the world's largest cement producer Ruishi Hao Rui Group in 1998 and Loesche companies, Hon Chong Cement Plant in Vietnam into the first vertical mill for cement grinding. Since then, more and more vertical roller mill for cement and slag in the final grinding.

•vertical roller mill for cement producers traditional grinding system compared with the practical and the quality of the cement to produce the same concerns have been eliminated. Vertical mill grinding cement has many advantages, not only has the economic advantage, while versatile, represents the future direction of development of cement industry.

Since the first vertical mill grinding cement in use since the cement grinding process, especially a large cement grinding power consumption and reduce power consumption is also a great potential. Cement and slag grinding, the vertical mill grinding energy is about 50% of the traditional ball.

• vertical mill is an air swept mill, so the fan's energy consumption must be included in the grinding system. Generally speaking, the vertical roller mill grinding plant ball mill power consumption is about 70%, which is new on the market to other comparable grinding technology.

Vertical roller mill raw material recycling technology

5000t / d production line of raw material preparation using RMR57/28/555 vertical roller mill. In the trial production period, there are often caused by improper operation of bucket elevator loop current is too high, resulting in crushing bucket elevator, mill jump stop the phenomenon, not only to field a larger increase in the workload of staff, also affected production. Through the operator and the constant review and practice, the current form of a set of effective control measures to effectively prevent the occurrence of such phenomena.

Problems outside the circle bucket elevator model: NSE300 × 33350, transmission capacity of 450t / h, motor power 75kW, rated current of 140A, the alarm value of 150A. In actual production, often due to sudden changes in raw materials, incoming instability and other reasons, the status changed to wear, resulting in material outside the circle, resulting in high current hoist. Early in the production, operation of commonly used method is a rapid reduction of the volume of feed at the same time increase the grinding pressure, appropriate to reduce the speed of the powder, so that as many as possible with the gas from the powder mill, mill to reduce the volume within the material, thereby reducing the external of recyclable materials. However, in practice found that such methods of operation to adjust for too long, large number of materials from outside the mill, will eventually cycle crushing bucket elevator. As the hoist is a chain of relations with the vertical roller mill, skip hoist will stop after the mill shut down.

Improvements through exploration and discovery, when the cycle of bucket elevator reach the threshold current 140A, even to the alarm value of 150A, to take the following measures, which can effectively avoid the cycle of bucket elevator of death.

① trip into the grinding belt, prohibited materials into the vertical roller mill. ② to quickly lower the ground pressure, so that in the disc of material formed on a temporary thick layers, so that the cycle bucket elevator plummeted materials. ③ appropriate separator to reduce speed, so that in fine grinding as soon as possible from outside the mill (separator speed should not be too low to prevent the raw material through the rough.) ④ When the cycle of current bucket elevator downward trend and dropped to 140A, can reduce the feeding amount to 200 ~ 300t / h, open the feed into the grinding belt, adjust the grind to a steady state condition, then normal operation.

Practice has proved that such methods of operation is simple, rapid decrease in a relatively short period of time outside the volume of recyclable materials to effectively prevent the large amount of recyclable materials caused by circulating outside the bucket elevator crushing, grinding stop jumping phenomenon long-term operation of the mill has played a crucial role, thus ensuring the normal kiln feed, but also greatly reduces the power consumption of raw material grinding system

When 80 tons of stone production line (stone production line) in the jaw crusher and crusher configuration

Stone production line (stone production line), the basic equipment is mainly feeder, jaw crusher machine , impact crusher, and vibration screening machine, there are customers to the different needs of individual raw materials used in hammer crusher, cone crusher , impact crusher, and the corresponding roll crusher and other equipment. In the stone production line (stone production line) is the most common vibrating feeder jaw crusher impact crusher vibrating screening machine such as articles of stone production line.

Here are some things to stone production line configuration on some issues, configure the first set of stone production line needs a thorough understanding of the single, simple Take the 80 tons of stone production line configuration, the 80 tons of stone production line vibrating feeder how it should be? on the feeder all know in the jaw crusher evenly to send material, if that is not so easily jaw crusher there idling or sealing problems. Therefore, stone production line vibrating feeder must be, that said first production line under the 80 tons of stone (stone production line) of the feeder should configure the screen surface models.

Feeder configuration yields the size of the stone will seriously affect the whole production line, so feeder configuration should be careful, 80 tons of stone production line in the feeder should be configured ZWS-300x70 size of the feeder trough 3000x700 ( mm) greater than the maximum feed size is equal to 500 (mm) capacity is 60-120 (t / h, spindle speed of 350-800 (r / min) Motor power 7.5 (kw) Weight 3225 (kg) Overall dimensions 3705x1450x1250 (mm)

Broken jaw crusher machine output is actually can be said as the actual output of production lines, so the choice of jaw crusher is simple, to see how much output you need, then choose how much of the jaw crusher, I that when the capacity of 80 tons of stone production line should be configured PE500x750 the jaw crusher, the crusher inlet size is 500x750 (mm) maximum feed size 425 (mm) nesting population adjustment range is 50-100 (mm) Treatment capacity is 28.5-62.5 (m³ h) Eccentric shaft speed 275 (r / min) Motor Power 55 (kw) (may be configured according to customer requirements) Weight 10.3 (t).

Next is the small break Crusher choice, impact crusher machine, when selected should be chosen and the jaw crusher with production so as not to cause waste of resources, so we chose Impact Crusher is the FP-1010 Impact Crusher machine. The Impact Crusher Specification Φ1000x1050 (mm), inlet size 400x1080 (mm), the maximum feed size 350 (mm), capacity 50-80 (t / h) power is 75 (kw) Weight ( does not include motor) 12 (t) form factor is 2390x2040x2600 (mm).

Finally, vibrating screening crusher machine, vibrating screening machine used 3YZS1236 type, the vibrating screen screen surface layer 3, mesh size is 1.32 m, mesh size 5-50 (mm), capacity is 75-245 (m³ h ), speed is 974 (r / min) two-amplitude 6-8 (mm), motor power 11 (kw) Overall dimensions 4300x2537x2645 (mm) Weight 3200 (kg) screen surface with an inclination of 20 °, sieve size to 1200x3600 (mm).

Cone Crusher common problems

Cone Crusher is the latest development of an advanced high-power, large crushing ratio, high productivity, low energy consumption, product size uniform pieces and suitable for all kinds of ore crushing, hydraulic rock crusher. Used in metallurgy, construction, road building, chemical and silicate industry, raw material crushing, can be broken over the middle and middle-hardness of various minerals and rocks. Therefore, compared with their counterparts crusher, with great advantages: high-performance, product composition of good intensity, good stability, clear cavity convenient, high reliability, easy maintenance and easy to operate, low cost and easy operation.

Cone Crusher Working principle: work, the motor rotating shaft through the pulley or linkage device, cone crusher cone crusher cone shaft and the Department of dynamic force in the eccentric sleeve around a fixed point for the week rotating pendulum. So that the cone crusher broken bi sometimes near and sometimes they leave the solid loading put on the bar in adjustment of acetabular wall surface, so that ore constantly under attack in the crushing cavity, extrusion, and bending and crushing ore achieved.

Cone crusher is crushing equipment commonly used in the work process has demonstrated the following characteristics is to increase efficiency and extend the mechanical life of the method, then the following features:

(1) hydraulic system, the aircraft is used to adjust the hydraulic system of mine crusher row on the size of the hydraulic system can effectively ensure the safe operation of equipment. A foreign body in the crushing chamber, the hydraulic system can automatically move under the back cone, when the foreign body and excreted, under the system to automatically reset back of the moving cone. Back row to keep the original location of mine I continue to work.

(2) crushing chamber type, the crushing chamber type is fixed cone and fixed cone of Q form the geometric space. Crushing chamber shape on the overall performance greatly. Crusher chamber type is the major technical indicators broken. Crushing machine design from the rough broken into four specifications of the cavity, it has six possible combinations, which means that it is best suited for their unique requirements.

(3) Seal and reliable: The labyrinth seal, replacing the previous use of the water seal, so that dust and impurities can enter the body machine, thus ensuring the Run edible vegetable oil for cleaning, extended plain bearings, thrust ball bearing life, makes the machine reliable operation.

(4) easy to change: the past, replacement of broken wall crusher is very slow, cone crusher broken new structure to replace the wall very quickly. Because of the broken wall with card shoot, put broken bolts from the top of the wall fixed. Under the broken wall fixed hydraulic nut is tightened. On the back under the broken wall materials do not need to add any padding, so rapid change, the reduction labor intensity.

White House Defers To Pelosi On Tax Cuts

President Obama’s aides say the White House is trying to take a step back and let Democratic leadership figure out the best way to handle the question of the Bush tax cuts.

The president made his preference clear, and he’ll keep helping the Democrats on the stump with the rhetorical definition of their party versus the Republicans. A White House aide said it’s possible Obama might talk about the tax cuts issue during his Cabinet meeting scheduled for tomorrow.

Democrats are huddling tonight with members to see what sort of bill they could support so close to the critical midterm elections.

An administration official said the legislative affairs team is consulting with Speaker Nancy Pelosi’s office to be of assistance where they can. The aim is to craft a bill which helps vulnerable Democrats but exposes the Republicans, the aide said, adding that’s not as easy as it sounds.

When Freshman Rep. Gerry Connolly, for example, says he’d be okay with a temporary extension of the tax cuts for the middle class and the rich, that complicates things, the aide said. (Connolly (D-VA) represents one of wealthiest districts in the nation. He’s said he gets Democrats’ arguments about just the middle class, but he also wants to help his own constituents.)

But the White House aide said word on Capitol Hill is that Democratic staffers are trying to come up with something that puts more spin on the ball, perhaps by creating a new tax bracket for millionaires. “They are trying to figure out something along those lines,” the aide said.

ball mill 

Jaw crusher design and maintenance Introduction

In the mineral processing equipment inside, crushing machine is mainly used to crush ore preliminary materials, which work environment is bad, therefore its constituent bodies need a certain amount of optimization and enhanced, should have the necessary knowledge in order to maintain efficiency in production to improve and equipment stability.

As the jaw crusher set by the dynamic E and E constitute the work of the chamber formed under enormous crushing force and friction materials, easy to wear bad, in order to protect the jaw, Hongsen Mining moving surfaces E and E be installed wear of the liner, this liner is also known as broken boards. Broken plates are usually made of tooth surface, and broken plates tooth peak angle 90 ° ~ 120 °, its size has been broken by the fragmentation properties of the materials and determined, breaking bulk materials, the angle should be bigger; broken small piece of material, the angle can be smaller. Pitch depends on the product size, usually get about equal to the width of the discharge port, the high gear ratio with the preferred pitch of 1 / 2 to 1 / 3.

Work, the broken plate wear rate under the two parts is not the same, lower wear faster than the upper, broken plates in the jaw crusher work, direct contact with materials to withstand the great crushing force and friction materials, broken board lifetime is directly related to jaw crusher efficiency and production costs, therefore, to extend the broken jaw crusher plate life is particularly important. E-board to enhance service life can be broken breaking design, material selection, assembly and use of process improvement and other considerations.

At design time, dynamic E and E of the broken board should be set teeth on the tooth peak valley. Thus, when breaking materials in addition to compression, there are bending and breaking of materials easier. To enhance the life of broken plates, small and medium sized crusher broken down into a board design symmetrical shape, a U-turn immediately after the Department of wear use; large jaw crusher broken board designed a few pieces of each symmetry to be worn exchange use the broken board. Broken plate white cast iron materials can be used. Large white cast iron hardness, good wear resistance, the source is easy and cheap; drawback is brittle, easily broken, short life.

In order to improve the life of broken boards, materials with more than 12% manganese steel manganese better common is ZGMn13. Manganese steel toughness, although the hardness is not high (about 210HB), however, because a cold hardening characteristics, under pressure and will continue to be strengthened, so continue to wear it at work continued to strengthen until the wear and tear can not be used to was scrapped. . Manganese steel casting broken board after going through the tough water treatment, water treatment operations generally tough and quenching the same, that is broken is cast out of manganese steel plate heated to 1000 ~ 1100 ℃ in the water after the rapid cooling. Ren treated water can be uniform microstructure, the microstructure and to fixed to avoid the use of the natural deterioration of the phase change not needed. Manganese disadvantage is more expensive, but life, cost, general considerations, ZGMn13 than the white cast iron long life, low cost.

Assembly, the broken plate must be securely attached to E-board, should be pad level between the two, broken plates and the jaw between the use of soft metal (such as lead, zinc, etc.) for gaskets and bolts tightened. Crusher work, broken plate should not be loosening, or easily broken or worn broken plate, reducing the life of broken plates. Therefore, the assembly must be installed, broken plates, thus extending the life of broken plates.

In the production process, broken plates and materials directly, broken very great, especially when broken material hardness greater, leading to installation of bolts broken plate vibration, nut loose, so that broken plate wear and greatly increase the noise, severe broken off or broken plate to equipment downtime, affecting the normal production. In this situation, just before the start tightening bolts, nuts, can not completely resolve the problems, according to the actual situation on site concrete analysis of concrete, practical ways to methods to solve the problem. For example, you can use spring anti-vibration device to resolve broken loose at work in the loose board, thus prolonging the life of broken boards and improve efficiency.

Specific approach is to use spring anti-loose bolts and self-made compact device, which from the inside spring cover, spring, spring cover is composed of outside, to wear the device in the bolt tightening nut, nut because spring is compressed to a certain degree, have a very strong vibration effect produced by the tremendous force of the bolt broken loose by the spring tension automatically power up, so loose bolts Bu Zhiyu, thus extending the life of broken plates, to increase productivity. In short, the process can be used for specific situations to find ways to solve specific problems, to prevent the broken plate loosening, wear increased, broken, etc., thus extending the life of broken plates, reduce costs and enhance efficiency.

Best Colleges 2011

This year, Harvard University regained sole possession of the top spot in U.S.News & World Report's Best Colleges 2011 rankings of national universities. Last year, Harvard and Princeton University tied for first, but Princeton fell to second in the 2011 rankings of these large, research-oriented institutions. Williams College can once again boast that it's the nation's top-ranked national liberal arts college —a category of schools that place a higher emphasis on undergraduate education—as it ranked a spot ahead of fellow Massachusetts liberal arts school Amherst College for the second consecutive year.

More from USNews.com:

Full National Universities Rankings List

New Sites Empower Students to Create Their Own Scholarships

College Rankings: Premium Content

This marks the 27th year that U.S. News has published college rankings. Though the top-ranked schools garner much acclaim, the rankings aren't produced simply to benefit students who are considering attending institutions like Harvard and Williams. U.S. News uses its array of college data to provide insight to students of various academic and socioeconomic backgrounds. There is a list of the best schools for B students, rankings of historically black colleges and universities, as well as rankings of the most diverse national universities. And though the worst of the financial crisis seems to have passed, finding value in the increasingly expensive world of higher education is still one of the most important — if not the most important —factors in choosing a school. To meet that need, U.S. News has compiled best value lists for national universities and national liberal arts colleges, which rank schools based on the average cost of attending — after need-based grants are taken into account — relative to their academic ranking.

The National Universities and National Liberal Arts Colleges lists are just two of several sets of rankings that are a part of U.S. News's evaluation of Best Colleges. Regional colleges and universities, which tend to draw heavily from their local area, and tend to have sparse doctoral program offerings, are ranked separately. Villanova University, Rollins College, Creighton University, and Trinity University are the top-ranked Regional Universities — schools that offer degrees up to the master's level and were ranked as "Master's Universities" in the past — in the North, South, Midwest and West, respectively. The top-ranked Regional Colleges — schools that offer bachelor's degrees and were classified as "Baccalaureate Colleges" in previous rankings — are the United States Coast Guard Academy in the North, Ouachita Baptist University in the South, Taylor University in the Midwest, and the United States Air Force Academy in the West.

Though California's public educational system is plagued by financial unrest and budget cutbacks, two of the state's schools are ranked as the top public national universities. The University of California-Berkeley, which is the 22nd ranked national university, is the top-ranked public school, followed by the University of California-Los Angeles. Rounding out the top five publics: University of Virginia, University of Michigan-Ann Arbor, and the University of North Carolina-Chapel Hill.

Though schools at the top of the rankings deserve praise for their sterling academic standards, they shouldn't receive all of the credit. U.S. News asked college administrators to name schools they believe to have made sharp improvements to their academics and campus facilities. Based on the results, U.S. News ranked the top "Up and Comers" across several categories. The University of Maryland-Baltimore County was determined to be the fastest-improving national university and Hendrix College earned top billing for National Liberal Arts Colleges. The best up-and-coming Regional Universities are Wagner College in the North, Elon University in the South, Butler University in the Midwest and Abilene Christian University in the West.

Jorge Antonio/iStockPhoto

1. Harvard University
City: Cambridge, MA

Total Enrollment: 19,411

2010-2011 Tuition and Fees: $38,416

Application Deadline: 1/1

Jeffrey MacMillan for USN&WR

2. Princeton University

City: Princeton, NJ

Total Enrollment: 7,592

2010-2011 Tuition and Fees: $36,640

Application Deadline: 1/1

Jeffrey MacMillan for USN&WR

3. Yale University

City: New Haven, CT

Total Enrollment: 11,593

2010-2011 Tuition and Fees: $38,300

Application Deadline: 12/31

©Columbia University

4. Columbia University
City: New York, NY

Total Enrollment: 24,230

2010-2011 Tuition and Fees: $43,304

Application Deadlin

What is a Ball Mill?

Cylindrical ball mill  is designed with a ball milling system for thermal power plants using conventional materials, it features strong resistance to wear and long service life. Our casting products strictly in accordance with enterprise standards Q/SHT003-1998 production, product quality supervision and inspection by the province to pass the test product, and a number of indicators over corporate standards.
Many types of ball mills, grinding coal by working parts can be divided into three types of speed, that low-speed mill, pulverizers and high-speed mill.
The working principle of ball mill: ball mill is a horizontal cylinder 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.
Purpose and scope of Ball Mill:

Ball mill is a ball mill, is the material being broken, and then smash the key equipment. Coal ball mill can be dry or wet grinding.
Ball mill is broken and ground into a pulverized coal machinery, it is important equipment pulverized coal fired boilers. Coal grinding process is broken and the surface area of coal is increasing process. To add a new surface area, must overcome the binding force between the solid molecules, and therefore the consumption of energy. Coal grinding mill was made of coal, mainly through the crush, crushed and ground in three ways. Process in which crushed the energy consumption of most provinces. Pulverization process is the most cost energy. Various mill in the milling process are both the above two or three ways, but mainly depends on what kind of mill type.
Structural characteristics of Ball Mill:

 Ball mill by the feeding part, discharging the Ministry Rotary Department, the Department of transmission (reducer, small transmission gear, motor, electric control) and other major components. Hollow shaft with steel casting, lining Replaceable, slewing gear hobbing by casting process, the body inlaid cylinder liner wear, has good wear resistance. Ball Mill smooth operation, reliable work.

Taylor and Kanye Both Sing About Kanye at MTV Awards

At the MTV Video Music Awards, Taylor Swift and Kanye West both unveiled brand new songs about the same topic: Kanye West.

But the two performers had wildly differing views on their mutual subject matter. Somewhat contrary to expectations, Swift's song was pro-Kanye, in its fashion, while West's self-lacerating confessional was anti-Kanye.

These two will never be on the same page, will they?

In the end, neither tune was necessarily a classic for the ages, but it was intriguing to hear zeitgeist artists approaching controversy in thoughtfully autobiographical new music rather than, you know, tweets. And the Swift and West appearances added what little drama there was to an anticlimactic show that mostly rode on the coattails of last year's water-cooler moment-filled telecast.

Galvanizing, love-'em-or-hate-'em stars Lady Gaga and Katy Perry were relegated to non-performing slots, meaning the only live fireworks were provided by Taylor's and Kanye's glancing lyrical allusions to last September. This 2010 sequel could have been titled "The 2009 MTV Video Music Awards: The Afterthought."

A few highlights and lowlights:

Swift forgiveness. Midway through the telecast, Swift debuted a tune she wrote after last year's VMAs debacle, when West rushed the stage and declared her an unworthy winner right in the middle of her acceptance speech. Anyone expecting the new song to be a rant in the vengeful tradition of her broadsides against ex-boyfriends had to have been taken aback by the ballad's solemn tone and lyrics, which offered only one immediately specific reference to West, mentioning his age at the time of last year's show.

"You're still an innocent, 32 and growing up now," she sang, in a maternal-sounding chorus, bolstered by a hairdo straight out of a 1940s glamour session. "Wasn't it easy... in fly-catching days... before the monsters caught up to you? It's all right, just wait and see. Your string of lights are still bright to me... Time turns flames to embers. You'll have new Septembers. Every one of us has messed up too..."

West-ern mea culpas. If you tuned in wanting to hear someone sing about what a big jerkola Kanye is, your viewing was not in vain, as West was all too happy to oblige, swinging back—for the moment?—to the anti-hubris, self-denigration side of his mood pendulum.

Coming out in a red suit in a blindingly white stage setup, West didn't sound much like the "innocent" Swift described him as earlier. "I always find something wrong/You been putting up with my [bleeped] too long," he sang, seeming to be addressing an intimate partner he'd wronged, as opposed to Swift herself. "I'm so gifted at finding what I don't like the most/So I think it's time for us to have a toast..." He then offered that "toast" to the "scumbags" of the world, along with a lot of less printable terms, before offering this advice: "Run away fast as you can... Run away from me baby."

Like Swift, he strode off the stage at a rapid clip at the conclusion of his number, as if both of them meant to say, There will be no questions. Oh, but there will, there will, when fans comb through their respective albums for psychological clues this fall.

Diva-lessness. Sure, Lady Gaga and Katy Perry both seem to have performed on every awards telecast in the last two years and are dangerously exposed. But this show could have used them as performers and not just presenters or winners. Like West and Swift, Gaga also debuted a new song—but in a very fleeting, a capella snippet that she belted out during her final acceptance speech of the evening.

"I promised if I won this tonight," Gaga said, holding her Video of the Year award—the last of eight trophies her videos won before and during the telecast—"I'd announce the name of my new album." Actually, she'd mentioned the title earlier, although she made it official in her last trip to the podium by singing a few bars of the title song of her forthcoming release... Born This Way.

Anyone who feels he or she was specifically created by God to wear animal innards as outerwear: Anthem, incoming! 

Perry neither performed nor won, but as a presenter, a red-carpet favorite, and a subject of host Chelsea Handler's jokes, her presence fed into the general nostalgia for the 2009 awards show, as everyone recalled how she met fiancee Russell Brand on that night that shall go down in infamy. A night without Perry performing with some kind of fruit adorning her cleavage is like a day without sunshine.

Later, Chelsea. The host announced at the outset that she was a little woozy from being in a prayer circle with Snoop Dogg, which might explain the lack of sharpness in Handler's musty, not-very-outrageous one-liners about the most obvious possible targets. Jokes about how young and virginal Justin Bieber is might as well have been leftovers from Russell Brand's rude riffs on the Jonas Brothers in MTV years past.

An opening backstage sketch where Lindsay Lohan told Handler to lay off the sauce should have been a highlight, but Lohan was apparently also cured of her ability to handle comedy while in rehab. The one laugh-worthy moment: Handler crawled into a hot tub with the cast of Jersey Shore and crawled out nine months pregnant.

But talk about missed opportunities. You release a dove on stage and then don't make a Kings of Leon pigeon joke?

Fears of heights. Wherever that dove settled in the rafters of the Nokia Theatre, it was probably near the evening's most-used camera, which offered plenty of overhead views of choreography of people laying down on the stage, in performances by Florence & the Machine and others. Taylor Swift's hairdo wasn't the only '30s/'40s-styled element of the evening. Busby Berkeley lives!—even if the dance moves choreographed for the overhead camera couldn't have made much sense to the live audience on the ground.

The award for best, most fantastic, world-beating hyperbole. That would be a tie. At the start, an announcer declared, "Welcome to the biggest night of the year." Eat MTV's dust, Christmas, New Year's, and Halloween!

But then there was the presenter who breathlessly announced that Usher has "the grace of a classical performer." Which was exactly right, because not since Baryshnikov lip-synched his way through a tribute to Tron has there been such a classical performance as Usher's "OMG."

Finally, Justin Timberlake introduced Drake as "the most exciting new artist in music right now," right before a number in which, while creditable, the most exciting new artist in music was completely overshadowed by duet partner Mary J. Blige.

The suspense of the live voting for best new artist. In a shocking upset, Broken Bells were beaten by Justin Bieber. Ernst & Young probably had to do a hand-recount for that particular photo finish.

Bieber-mania, unabated. There was something a little creepy about the rampant sexualization of Justin Bieber by the grown women on the show, from Handler's gags to a nearly naked-looking Kardashian gal joking that the teen star had gotten a restraining order against her. It was sheer coincidence that Bieber's performance of "Baby" was immediately followed by a contraception commercial... we hope.

Bieber's outdoor number on the Nokia plaza was not a highlight, particularly with all those male backup dancers in "B" letterman jackets, as if Bieber Academy is a school every guy aspires to attend. But it did end nicely with the heartthrob taking a drum solo, showing that he wants to be Nick Jonas when he grows up.

Better red than dead. Sometimes it seemed like every woman at the show was a redhead. Florence, of "& the Machine" fame? Check. Hayley Williams of Paramour, who sang with B.o.B.? Rihanna? Check. In a poufy white skirt, white halter top, and red 'do, Ri-ri looked a little like how Amy Adams might have after losing her innocence in an Enchanted sequel.

MIA-inem. Rihanna's "surprise" appearance at the end of Eminem's opening performance added some flair to an otherwise surprisingly unremarkable medley. The self-help platitudes and cheesy kettle drums on "Not Afraid" just don't represent the Em we know and fear, though setting the number in a mock club before he bounded onto the real Nokia stage did bring back some nice 8 Mile flashbacks.

But when it was announced that Enimem had already left by the time he won two on-air awards, it was as if his early departure symbolized waning interest in the show. Explaining his absence, the presenters were forced to keep saying the superstar rapper had had to catch a flight to New York to perform with Jay-Z at a show. Making those pressing 6 a.m. showtimes back east can really be tough on an artist.

Rock: still in hibernation. Is there such a thing as a major rock & roll band now? If so, it wasn't represented on the VMAs. Linkin Park's appearance seemed impressive, at least until viewers figured out that it was the Griffith Observatory setting that was impressive. But their now rap-less NIN/U2 hybrid sound didn't exactly make them rebels without a cause. If there was a rock band you'll remember from the evening, unfortunately, it may be the group in that annoying credit-check commercial.

The what awards? "God bless pop music and God bless MTV," said Lady Gaga... leaving viewers puzzled as to what those two things have to do with each other. More explicable was Gaga's best line of the night: "I never thought I'd be asking Cher to hold my meat purse."

Meat purse (and dress) or no, at least Gaga didn't shed any blood, guts, or gore during the course of this particular evening. But "bloodless" probably isn't the way the 2010 VMAs would prefer to be remembered.

What were the standouts and low points for you?

 grinding ball mill

five technical advantages of vibrating screen in screening equipment

Mineral processing equipment in the main equipment for grading spiral classifier, vibrating screen, circular vibrating screen, vibrating screen. Depending on the production process or production line to choose a rational screening equipment is particularly important.
Vibrating Screen (high product sieve) from exciter, ore pulp distributor, screen frame, frame, suspension springs and sieve, etc. components. For mineral processing, coal preparation, chemicals, bricks, food, pharmaceutical, alkali, fertilizer, paper and other industries in a variety of materials, dry, wet screening, grading, dewatering operations.
Production of high-clothes sieve shaker machine has the following performance advantages:
1. Exciter drive through the transmission screen surface for high-frequency vibration, static sieve box. Vibration system near resonance in the work machine through vibration support, so the ground does not bear the basic dynamic load screen machines do not need the system as a foundation, directly on the solid flat ground or ordinary steel platform can work properly.
2. Screen surface vibration frequency of 50Hz, the amplitude of 0 to 2 mm, vibration intensity of acceleration of gravity of 8 to 10 times that of the general mechanical shaker vibration intensity of 2 to 3 times. Screen surface is not easy plugging holes, high efficiency, large capacity. Especially suitable for the screening of fine powder materials. Grade size 0.074 ~ 1mm.
3. Screen surface from the three different composition of the flexible screen. The underlying network to support the steel core polyurethane mesh, wire diameter and lay above all not the same double-mesh stainless steel wire braided network. Composite layer network of online, direct contact with the material for screening work for the end of the lower composite mesh network, for the dispersion and transmission of vibration force to ensure the network of high screening efficiency and prolong life. Screen hooks at both ends for easy handling and adjustment of tension degree screen. Feeding buffer sieve to disperse uniform pulp, to avoid clash
4. Vibration of flexible elastic material of high quality transmission link, long-term reliable operation; screen machines for the energy-saving products. Single exciter power only 0.15kW, mineral commonly used in electromagnetic shaker 2420, the whole power consumption of not more than 1.2kW / Taiwan.
5. Sieve box side with the overall bending molding steel, both to enhance the overall stiffness and work screening machine reliability, equipment will look better.
Meanwhile, the vibrating screen can be configured according to customer's different needs of different types of cabinet, to achieve the parameters set, the remote central control, and fault alarm history and other additional features.
Sieve shaker and the use of high frequency, similar to, but for dressing materials and process details are different.

The reasons of cone crusher coaster phenomenon

Cone Crusher is a widely used in mining, metallurgy, construction, chemical, silicate materials, broken equipment and other fields, is suitable for crushing hard and medium hard ore and rock. According to feedback from customers cone crusher  summed up the phenomenon of runaway production and tactics for breaking the user reference cone.
Cone Crusher mainly by the work of agencies, adjustment devices, dust-proof devices, security devices, and lubrication devices and other components. Organizations from manganese steel liner with a cone and fixed cone crusher (also called adjustment sets) form. Crushing cone mounted on the spindle, its lower surface for the spherical shape by the spherical bearing support. Spindle into the bottom of the cone set in eccentric kit.
Normal production process of the dynamic cone crusher cone section to a certain rotation speed to do periodic pendulum movement, but often because of some special reasons, they would often move cone speed suddenly increased, the body produces instantaneous asked violent vibration, spring or insurance, the insurance cylinder in a non-normal working condition, operating current increase in the instantaneous asked to return to the oil temperature increased rapidly, resulting in equipment can not function properly, this is the so-called "Speed."
1. The reasons for the phenomenon caused by Speed
(1) lubrication system. As the dust-proof device failure or strict closure. Some of the crushing chamber dust into the lubricating oil (the normal working hours can not be broken into dust generated inside the machine and fell into the tank to be washed away by circulating water), so the lubrication site, including broken between the cone base and the spherical bearing, dynamic Lu cone and the eccentric sleeve, between the size of bevel gear, the horizontal axis and poor lubrication between the sleeve, resulting in friction. Lubrication oil temperature continues to rise, reaching or exceeding 55 ℃, the viscosity of the oil drop.
(2) crushing chamber into the non-broken thing, insurance springs (or insurance, fuel tanks) have lost their role in bringing empty conical eccentric shaft bushing loose on the string, reducing the broken shaft and the taper bush news gap.
(3) The poor lubrication, resulting in dynamic cone-watt non-spherical and spherical Bowl normal wear and tear (especially the spherical bearing Bowl Pad Wear severe), resulting in decreased dynamic cone sphere, so that mattress moving cone and cone-shaped cover the gap between reduced.
(4) Spindle and bushing bore partial contact with poor lubrication. Or spindle taper bushing bore gap is too small, so that embraced spindle taper bushing. In this case, the cone has left the empty set of eccentric sleeve, also contributed to the runaway phenomenon of frequent reason.
2. Should taper breaking "speed" measures
As can be seen from the above analysis, resulting in cone crusher coaster for two main reasons: First, failure or failure of lubrication; second, moving cone and cone-shaped bushing gap is too small, so our responses to it from two aspects:
(1) in strict accordance with the requirements of the selection of qualified equipment specification oil, ensure the indicators meet the standard, particularly its viscosity and fluidity (if in the cold, winter oil should be warm, to ensure its liquidity) .
(2) dust seal must be installed devices, regular checks of retaining ring and ring ring, if found by a bad or damaged shall be promptly replaced. Guarantee seal, sitting against broken into powder lubrication system.
(3) that taper bushing assembly within the bore hole outside the gap, to ensure spindle taper bushing along with full contact (an increase in the spherical bearing seat pad tiles can be changed and fixed cone sleeve press gap); cone shaped bushing and shaft sleeve must be fixed with the melting of zinc water to live, between the two can not have any relative motion.
(4) Note that empty eccentric sleeve with nylon (or copper) vertical gap cover assembly heard: too much air causing a great eccentric axis and tilt axis, resulting in not moving cone and eccentric line of contact, make the local bush overheating, increased swings, increased vibration; too small will cause fever inside and outside the bush.
(5) spherical bearing pad and moving the body the next spherical cone 100mm - 120mm or less allowed to have contact points. Makes the power of the moving cone from the spherical bearing upper 2 / 3 spherical bearing.
(6) installation of attention within the circular plate (below) not to enter the foreign body.
Speed control of the cone crusher reasons, and in the actual production equipment in strict accordance with the operating rules for operations, maintenance procedures in accordance with equipment maintenance, we can reduce the crusher Speed phenomenon, greatly improve equipment operating rate, to improve productivity and production efficiency to provide reliable protection.

The World's Most Beautiful College Campuses

Higher learning is a lot more attractive at these schools.

When she was a senior in high school, Ellie Norton toured about 15 college campuses with her mom. But the moment they drove up the hill at Kenyon College, in Ohio, she knew her search was over.

"It was so amazingly beautiful," says Norton, now 21, and a modern languages major at the school. "I just knew it was where I wanted to be."

In Pictures: The World's Most Beautiful College Campuses

What appealed to Norton about the tiny liberal arts college were the sweeping trees, the vast expanses of green and the way classic Gothic architecture blends in with the Midwestern-style houses on campus. "It's like the old part of campus has taken in its surroundings instead of alienating them," she says. "It feels like the campus is really part of Ohio."

Kenyon College, Gambier, Ohio

Kenyon isn't just a looker compared to Midwestern neighbors. It's one of the best-looking campuses in the world, according to a panel of architects and campus designers interviewed by Forbes.

Architect Mike Evans, of the firm Hanbury Evans Wright Vlattas in Norfolk, Va., which has worked on campuses worldwide, says it's easier for smaller campuses like Kenyon College or Scripps College to stay beautiful and charming "without the pressure of large-scale change."

For larger universities, a "clear diagram of organization" and "a continuity of materiality" are key to safeguarding their beauty, says Evans. Schools like Stanford University and the University of Virginia have painstakingly managed to maintain their distinct aesthetic and true sense of place, despite extensive growth.

The University of Oxford, Oxford, England

Judge Natalie Shivers is currently overseeing the growth of another of our panel's favorite campuses, Princeton University. This classic American campus is "straight out of central casting," she says, pure collegiate Gothic, most of it executed in ivy-covered gray stone.

The University of Oxford made every architect's list, including that of David Mayernik, a professor at Notre Dame's School of Architecture. He calls the 11th Century campus, with its maze of cloisters, archways and pathways, "an architectural wonderland."

Kevin Lippert, publisher of the Princeton Architectural Press, which publishes the prestigious Campus Guide series, finds beauty outside of the Ivy Leagues.

Princeton, Princeton, New Jersey

Lippert put the Air Force Academy in Colorado Springs high on his list, calling the campus, which was built in one fell swoop in the 1950s, "a tour de force of modern architecture." The Colorado Rockies as a backdrop doesn't hurt.

A powerful landscape can play a significant role in establishing a campus' character, says Aaron Schwarz, a principal at Perkins Eastman, a global architecture and urban design firm. The University of California at Santa Cruz, perched over the Pacific, is blessed with some good natural setting "genes," he says.

Sometimes a school benefits from its location in an urban environment, instead of mountains or ranch lands. The University of Bologna's campus is a city that dates back to the Roman Empire.

Most campuses deemed "beautiful" boast a "signature campus space," according to architect Mike Evans--an area that really defines the campus and its brand, like Thomas Jefferson's Lawn at the University of Virginia.

At Kenyon College, the signature space is a 10-foot-wide trail called The Middle Path, which doubles as central artery and village green for the campus. "In the fall," says Ellie Norton, "there's no place like it."

World's 5 Most Beautiful College Campuses

1. Kenyon College
Gambier, Ohio

Mike Evans, a principal at Norfolk, Va., design firm Hanbury Evans Wright Vlattas + Company, says to be beautiful a campus must have a "signature campus space as a carrier of the campus brand." At Kenyon College, that space is "Middle Path," a 10-foot-wide footpath that serves as the Gothic hilltop campus' central artery. More than just a trail, it's a village green for the tight-knit campus community. Sergei Lobanov-Rostovsky, who teaches 17th-century poetry at Kenyon, says the college, both isolated and pastoral, is "a small place to think big thoughts."

2. Oxford University
Oxford, England

Teaching within Oxford's stone walls dates as far back as the 11th century, and the school is considered a paradigm for all college campuses. With its labyrinth of quads, cloisters, and archways, it evokes elegance and tradition at every turn. "Its monastic roots and the spectacular quality of its buildings make it an architectural wonderland," says David Mayernik, associate professor at Notre Dame's School of Architecture. The famous Radcliffe Camera, built in 1737 as a Science Building, and now a hushed reading room for students, is "the most covetable university building in the world."

3. Princeton University
Princeton, N.J.

This classic American campus is "straight out of central casting," says architect Natalie Shivers, who has been guiding the prestige Ivy Leaguer through an ambitious expansion plan. Princeton's style is pure Collegiate Gothic; most of it executed in gray stone covered in, yes, ivy. As imposing as these old stone structures are, the campus keeps life on a "human scale" by preserving green spaces and "walkability," says Shivers. "Everything on campus is within a 10-minute walk." Sinuous footpaths, archways, plazas--all are designed to inspire spontaneous discussion and learning.

Scripps College, Claremont, California

4. Scripps College
Claremont, Calif.

The total plan of this women's college, founded in the 1920's, has always called for artistic connection between buildings and landscape. Together, architect Gordon Kaufmann, in collaboration with landscape architect Edward Huntsman-Trout, created a distinctively Southern Californian blend of Mission Revival-inspired architecture and landscape, which is lovely, evocative and intact. An expert in deciduous trees, Trout planted rows of liquid amber trees to give the students "a sense of autumn" come fall. He also peppered the campus with tulip trees, sycamores, almond and orange trees, as well as rare shrubs.

Stanford University, Palo Alto, California

5. Stanford University
Palo Alto, Calif.

Architects like Aaron B. Schwartz, Principal and Director of Perkins Eastman, an international design firm, praise Stanford for staying "cohesive" despite extensive growth, and for always respecting and staying loyal to "its initial design precepts." New additions like the Science and Engineering Quad manage to gracefully blend modern and technological elements with the timeless, elegant aesthetics of the campus' early California Mission Revival architecture. Architect Mike Evans lauds the campus' "continuity of materials, color and scale" over time. The campus also scores big points for its dramatic entrance via Palm Drive, its romantic Spanish red-tile roofs and myriad patches of green.

the sand making machine in railway in china

Railway is the main artery of national economy, is also the national critical infrastructure and mass transportation, with the continuous economic and social development of the western railway construction information is imperative to speed up the information society on the railroad construction Yuan Wang is urgent. Mining equipment will focus on advancing support for Southwest border roads, railways and hydroelectric mining to large-scale construction projects in Tibet, Qinghai, Gansu, Inner Mongolia and other poor areas and make due contribution to economic development. Hydraulic cone crusher, aggregate shaping the sand making machine, convenient and reliable operation, high efficiency mobile crushing station has been slowly advancing in full swing in the Southwest border.
Sand making machine also called (vertical impact crusher) is a hydraulic opening ceremony of the sand making machine, crushing ratio, replacement of wearing parts is simple and can effectively control the production because of equipment failure to stop and cause high maintenance costs Another advantage is that parameters of advanced technology, innovative design and reasonable structure, uniform gradation break, the product line of excellent grain, were cube, needle pieces were very low, suitable for sand and gravel aggregate plastic, artificial sand and the aggregate production of high-grade .
According to the medium and long term railway planning to see, add 40% of rail planning projects in the western region to further expand the scale of the western road network, development of the western region of vital importance. Governments from all walks of highway construction on the southwest to a lot of attention, with the attendant ushered in the "Great construction, great development of full construction, a new round of railway construction peak has been set off in the global fast. Planning the implementation of railway projects all After New Line Railway Bureau will reach about 8,000 kilometers, the total investment reached 480 billion yuan estimate for the Lanzhou Railway Bureau is entering the "information railroad" laid a solid foundation.

The use of jaw crusher

jaw crusher, jaw crusher broken short E (also known as tiger mouth) occurred in 1858, with the reduction ratio. Jaw crusher product size uniform, simple, reliable, easy maintenance, less operating cost, It is a broken device of choice, which is widely used in mining, smelting, building material, highway, railway, water conservancy and chemical industry and other sectors.

This series of crushers crushing compression strength not higher than the most appropriate 320MPa (MPa) of various hard and soft ore, the largest block of material to be broken shall be not greater than the required technical parameters of the second table: impact crusher, commonly known as sand making machine is to use the United States Bamako's famous "stone at stone" theory and technology crusher, sand production at home and abroad of the actual situation developed out of an international advanced level of high-energy low-power devices, the performance broken equipment in a variety of fine ore plays an irreplaceable role, is the most effective, practical and reliable crushing plant. The crusher is the construction of sand, road sand, cushion material, asphalt concrete and cement concrete aggregate ideal production equipment, jaw crusher is widely used.

Jaw crusher widely used in metal and nonmetal ores, cement, refractories, abrasives, glass materials, construction aggregate, man-made sand and a variety of metallurgical slag crushing and rough grinding operations, particularly in the hard, particularly hard and abrasive materials, such as silicon carbide, silicon carbide, sintered bauxite, magnesite, etc., than other types of broken machine has more advantages. And supporting the use of hydraulic protection jaw broken, can handle a variety of metallurgical slag. For construction sand, gravel roads with priority for the appropriate

Roll crusher features and application

Roll crusher  is brick and tile industry using the most crushing equipment, is the oldest of broken machinery, now, roll crusher through continuous development and innovation, their family members have a very rich, and almost as long as a brick tile factory where, you can see the shadow roll crusher.
Roll crusher should be called the "Drum Roll Crusher," English name "ROLL CRUSHER", which means "drum crusher." In general, it is relying on two opposite rotating roller friction generated when the role of the material into the crevice between the two rollers by continuous extrusion and broken. Roll crusher uses a very wide range of chemical mines, coal mines, steel mills and ceramic factories has its own battlefield, of course, brick is the roll crusher where the most used, it is mainly used for crushing medium hardness of these materials, such as: bauxite, phosphate rock, zirconium quartz, clay, shale, coal and so on.
Roll crusher of the biggest advantages is the simple structure, easy manufacturing process, its power consumption is small, higher than production. Roll crusher of the raw materials to adapt to very wide, for more than 25% moisture content of materials, on the roll crusher can "ease" to deal with, which is unmatched by many other broken equipment. It is for these reasons, roller crusher is so favored by the brick.
In production practice, roll crusher continuously improved and perfected, the new varieties and types of emerging greatly enriched the brick raw material handling means.

coal crusher

Hydraulic Cone Crusher breakthrough win in fine

Rapid population growth, environmental destruction and pollution and ecological degradation, to the city building poses a severe challenge. More and more buildings to find a natural fusion of architectural forms, which requires large and small, environmentally friendly building materials, science and technology policy concept, the market's rapid economic development, the existing natural resources can not meet the city of needs, the focus has been to artificially natural sand aggregate stage of development, large and small enterprise development with the development of a construction materials, there are many low-quality low capacity of the equipment out, which requires our serious, rigorous identification of excellent high-volume high-tech equipment in recent years, the survival of the fittest of the guard by the market.
    Hydraulic Cone Crusher Application: cone crusher  is widely used in metallurgical, construction, road building, mining, quarry, etc., can be broken over the middle and middle-hardness of various minerals and rocks. Crushing ratio and production efficiency.
    - The combination of higher speed and stroke, so that SMH crusher rated power and the adoption of greater capacity and improved the crushing ratio and production efficiency. Less consumption of wearing parts, low operating cost.
    - Reasonable structure, advanced crushing principle and technical parameters, operational reliability, low operating costs; crushing machine all the parts have wear protection, will reduce maintenance costs to a minimum, the general life can be increased by 30% or more. Laminated broken, excellent product grain shape through the use of laminated particle theory between the special design of the crushing chamber and the matching speed, replace the traditional single particle crushing principle, to achieve selective crushing of materials significantly improve product fines cubic content ratio and greatly reduced the degree of needle sheet material.
    Hydraulic protection and hydraulic pressure cavity clearing, high degree of automation to reduce downtime hydraulic adjustment and overload protection to nesting mouth cone crusher operating level has been greatly enhanced to make maintenance easier, more convenient operation, less downtime; SMH series cone Crusher had a two-way hydraulic cylinder enables the release of iron iron through the crushing chamber, the cone crusher in the iron and transient nausea occurred in the case of cars, from top to hydraulic automatic nesting, which greatly reduces the need of the original spring cone crusher manual nesting down the trouble, and many other manufacturers because of the breakers have been shut down rail card dead.
    In many cases cone crusher in the forest, smh cone break to the level of aggregate concrete building construction occupation is winning in terms of quality, win in the end of the hydraulic opening cone break.

Single rotor impact crusher

(1) without even sieve-plate impact breaker (impact crusher )

(2) take even sieve-plate impact crusher. This crusher machine  can control the product, so big particle size, narrow particle size distribution range of products, product size evener. This expression due to sieve grading and broken plays a big role of particles.

(3) single reversible impact crusher (back rotor broken). The rotor can reverse, positive rotation feeding port in the body, decorate in the upper part, crushing cavity symmetrical arrangement of two back plate, double rotor counterattack crusher is the following 3 kinds.

A. two double rotor rotating rotor whetherisolated counterattacking crusher. Equivalent to two half rotor counter series crusher, big crushing ratio, particle size uniform, great capacity of production, but higher consumption. But as the coarse and fine machinery, use. This crusher  can reduce the broken plate number, simplify the production process.

B. two rotor counter-rotating dual-rotor counterattack crusher. Equivalent to two single rotor counterattack crusher parallel, great capacity of production, can break a large materials, as large and medium crusher.

C. both rotor opposite the counter-rotating dual-rotor counterattack crusher. Main USES two rotor relative materials from the ejecta crush crash, so big crushing ratio, metal wear less.

Six plastic crusher note

1, plastic crusher and power unit to be securely installed. If you need long-term fixed plastic crusher operation, it should be fixed on the basis of the cement; If you need plastic crusher mobile operations unit to be installed in the crusher machine made with angle iron pedestal, and to ensure power machine (diesel engine or electric motor) and plastic crusher pulley groove at the same rotation plane.

2, plastic crushing machine after you install fasteners fastening departments to check the situation, to give to tighten if loose. At the same time to check the suitability of the transmitter.

3, plastic crusher machine start before turning the rotor by hand, check the tooth claw hammer and the rotor is flexible and reliable operation, broken interior whether collisions, the rotor rotation direction is consistent with the machine direction of the arrow, power machine and plastic crusher lubrication is good.

4,Plastic crusher machine  should not replace the pulley, to prevent excessive speed resulted in crushing chamber produce an explosion, or the low speed impact mill's efficiency.

5, plastic crushing machine must be maintained after starting their first idle 2 ~ 3min, no abnormal feeding after work.

6, work and pay attention to the functioning of plastic crusher, first of all, feeding should be uniform, to prevent blocking of scrap room; Second, not long overworked. If there is vibration, noise, bearing and body temperature is too high, the outside spray material phenomena, should immediately stop inspection, troubleshooting before they can continue to work. crusher machine prompts you, choose one for your machine, make you more effective, at the same time, maintain good this machine, it is icing on the cake for you. Therefore, we should not only help us choose a real machine, but also not forget the love that we carefully choose Haohao De machine!

Crusher role in the extensive use of outside

Crusher is mainly used in industry to smash the operation, compared to grinding equipment, crushing machine for large size, large particles of material more significant the effect. Therefore, in powder processing, ore mining and smelting operations in the sand crusher is widely used as its preferred tool for initial processing. Depending on the model, divided into crusher cone crusher machine, impact crusher, jaw crusher, etc., different works were used in the processing of different materials. So, in addition to the role of crusher broken, the broken machine if there are other more extensive use?
In order to explore new uses for the crusher, the definition of the crusher is the basic principle of what the industry can be close with. The traditional view that Crusher machine  is mainly used for grinding and slag made a first step, when the processing of crude materials. To adapt to the expected range of grinding equipment. Then, in the general sense had to restrict the use of crusher ore smelting or materials made on.
However, by year of practice, we find that many industries require materials or broken. Not solely limited to the traditional light industry. The emerging industry in the crushing area, far can learn from experience. For this reason, many companies spend a high cost, detour to find other ways for processing. The results are not satisfactory.
So, we look at the building demolition industry. Often these involve public works, this is indeed in recent years, new areas of application crusher machine. Through large-scale removal of machinery, can be split into building blocks of granular materials, and then transported to processing plants. Many removal companies often do not realize the role and use of these materials and rash of these valuable substances as a waste. But at this stage, the Shanghai Dragon King has been successfully carried out some construction sand recycling program design. This demolition of old buildings by the construction waste generated after the application of crusher sand and gravel products can be effectively turned into recycling. On the one hand to reduce the burden on enterprises, it also addresses the requirements of urban waste disposal and environmental protection.
Again, this stage is rather deep in some ore hidden underwater, while others need excavated underwater tunnel operation. Shanghai Dragon King through the use of high corrosion-resistant material crusher, can effectively complete the crushing operation in the water. The advantage is to facilitate the recovery of the broken product. Traditional fooled underwater tunnel excavation or mining, if there are massive stone must be designed very large conveyor so that transport to the surface. Underwater operations through this crusher mahcine, the particle size range of control in a certain range, you can try to siphon pumping, significantly reduced the conveyer installation complexity.
On the other hand the application is, there are many minerals will form during processing of granulated slag block, so do not facilitate their post-treatment. So, how could it be more efficient disposal of slag? Now, many manufacturers have been broken in the testing machine using slag removal operation. Great order of nickel on the election equipment in this crusher's recycling of slag, it is known, the effect is very obvious, and saves its mineral waste processing costs.

Raymond Mill is mainly used in what place?

Raymond grinding mill  is mainly applied in metallurgy, building materials, chemical, mining and other mineral materials of the grinding process can be grinding quartz, feldspar, calcite, talc, barite, fluorite, rare earth, marble, ceramics, bauxite, manganese ore, iron ore, copper ore, phosphate rock, iron oxide red, zircon sand, slag, slag, cement clinker, activated carbon, dolomite, granite, garnet, iron oxide yellow, fertilizer, compound fertilizer, fly ash, bituminous coal, coke, lignite, Ling U.S. sand, chromium oxide green, gold, red mud, clay, kaolin, coke, gangue, porcelain clay, kyanite, fluorspar, bentonite, medical stone rhyolite, diabase, leaf wax rock, shale, purple rock, Diego rock, basalt, gypsum, graphite, silicon carbide, thermal insulation materials in the 9 Mohs hardness below 6% or less humidity range of non-flammable non-explosive mineral materials processing, product fineness can be adjusted in the 30-400 objectives.
Raymond grinding mill entire structure consists of: jaw crusher, bucket elevator, hopper, feeder, host, analysis machine, wind Qi, control box and connect the piping and other components.

Grinding mill Widely used in mining, chemical industry, metallurgy, building materials, coal, refractory and other industries. Products have passed IS09001: 2000 international quality system certification, YGM, TGM series mill has passed European CE certificate and entered European market. The main parts and wearing parts are of high quality wear-resistant materials and advanced processing technology, so equipment durability, well known at home and abroad, exported to Russia, Kazakhstan, Azerbaijan, Turkey, Kuwait, South Africa, Egypt, Vietnam, Malaysia , India, Australia, Korea, Canada and the European Union and other countries and regions. Raymond Grinder in the domestic and foreign made powder industry, showing its proper light.

stone production line introduction

Sand Production Line Introduction:
Stone production line mainly by vibrating feeder, jaw crusher, impact crusher, vibrating screen, belt conveyor and centrally electric controlling system, etc; designed capacity is from 50-500 tons / hour. Processing to meet customer needs, can be equipped with cone crusher, dust removal equipment. stone crusher Can be used in hard limestone, granite, basalt, river gravel, slag and other materials over the rule of the aggregate and the operation of artificial sand making for hydroelectric power, building material, highway, city construction and industrial applications. According to different process requirements, the combination of various types of equipment to meet the technological requirements of different customers. 
Sand production line(stone crusher) is in accordance with the definition of material type, produced finished products, including stone and sand, also known as aggregate production. The equivalent of stone production line and the combination of sand production line. In road construction, building materials such as plant, often requires aggregate public production line, the set of aggregates production line equipment can meet the needs of artificial stone and sand at the same time production.
We take a look at stone and sand production line production line process:
Stone production line of the production process is roughly: (bin) -> Feeder -> Jaw Crusher -> Impact Crusher -> Vibrating Screen - "(finished stone), the middle of the device to the chute or conveyor belt connected.
The formation of sand production line process as followed: (bin) -> Feeder -> Jaw Crusher -> Impact Crusher (optional) -> Impact Crusher -> Vibrating Screen  -> Sand Washing Machine - "(finished sand), the middle of the device to connect the chute or conveyor belt.
The sand and gravel production process complicated than the above two. Along the lines of: (bin) -> Feeder -> Jaw Crusher -> ① Crusher -> Vibrating Screen - "(finished stone) ② Impact Crusher -> Vibrating Screen -> Sand Washing Machine - "(finished sand). which shaker can share, you can also use separate. the equipment to the middle chute or conveyor belt to achieve different physical transmission

Stone crusher: jaw crusher, cone crusher, impact crusher, rock crusher,  hammer crusher, mobile crusher, stone mill;

The technical of symons 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 stops 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．Convenient 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 course 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 course 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 .

CS Series spring cone crusher

Comparing with other kinds crusher, CS Series spring cone crusher  with high-efficiency (Symons cone crusher ) have excellences for fine crushing, high productions and low maintenance. The long force arm designed into the Symons cone provides greater crushing force.
  And the spring release system generates more opposing force than other cone crushers. So use in mine industry widely.

According to customer's requirement, our company designs high-performance crusher, CS Series High-efficiency Spring Cone Crusher(Sysmons Cone Crusher).
This crusher concentrates on the speciality of high-frequency, optimization of cavity-type, reasonable stroke and bases on the advanced technology introduced abroad, follows the conception of laminated crushing principle, more crushing and less grinding.
PY Series Spring Cone Crusher is suitable to crush various kinds of ores and rocks of medium or above medium hardness. Compared with Jaw Crusher, PY Series Spring Cone Crusher is of stable structure, high efficiency, easy adjustment, and economical using etc. The spring safety system of crusher acts as an overloading protection system that allows metals to pass through the crushing chamber so as not to damage the Cone Crusher. The safety system uses dry oil and water as two kinds of sealed formation to make plaster powder and engine oil separated to make sure reliable performance. This type of crushing chamber depends upon the size of feeding and fineness of the crushed product. The standard type (PYB) is applied to medium crushing, the medium type is applied to medium or fine crushing and the short head type is applied to fine crushing.

PY Series Spring Cone Crusher  materials by the working surface between the movable cone and fixed cone. So it is more advanced and efficiency than Jaw Crusher. The movable cone is supported by spherical bearing and fixed on an hanging erect shaft which is set in the eccentric sleeve, and the sleeve is set on the stopping and pushing bearing. The movable cone and erect shaft are driven by the eccentric shaft sleeve together. The eccentric shaft sleeve is driven by horizontal shaft and fimbriated gear, and the wheel of the conveyor belt is driven by motor through v-belts. The lower part of vertical shaft is installed in the eccentric sleeve. When the eccentric sleeve rotates, there is a conical surface lined out by the shaft. When the movable cone comes near the fixed cone, rocks are grinded into pieces, when the cone leaves, grinded materials is discharged from the discharge hole. The fixed cone can be ascended or descended by adjusting setting to adjust the width of discharge hole, consequently the output size is determined.

symons cone crusher and spring cone crusher

The spring cone crusher is the most widely crushing machinery in the world . With the optimized improvement , the spring cone crusher features more reasonable and advanced ,which have appeared the excellent performance in the manufacturing ,installation, and maintenance and so on. And with the simple operation, safety, and high-efficiency, the spring cone crusher we company produced have been specially used in the mining and crushing working. And we look forward to your consultation !

Technical features of Spring cone crusher

The spring cone crusher have the large crushing force and can provide larger production capability.

Two kinds of crushing cavity structure can adapat to the wide application of requirements of the particle size .

The spring secure system can provide the secure and efficient over-loaded protection

The spring cone crusher have the perfect lubrication system.

Application of the Spring cone crusher

The spring cone crusher can widely be applied to crush the hard and mid-hard ores and rocks in the field of metallurgy , building, road , chemicals ,and construction industrials and so on. And spring cone crusher can also be used to crush the Iron ore, limestone, quartz, granite, cement guessed, and so on.

Working principle of Spring cone crusher

The main structure of spring cone crusher is including the frame, transmitting, hollow eccentric shaft, bowl bear, crushing cone, set adjustment , adjustment housing ,spring and hydraulic drill used to adjust the discharge opening ,etc. .During the operation of spring cone crusher , the motor drives the eccentric shaft shell to turn around through a horizontal axle and a pair of bevel gear. The axle of crushing cone swings with the force of eccentric shaft shell so that the surface of the crushing wall is closely to the roll mortar wall from time to time. In this way, the ores and rocks will be pressed and crooked and finally crushed.

Cone Crusher types

Cone Crusher Features:
(1) hydraulic system
This machine has a hydraulic system to adjust the crusher on the size of the row of mines, hydraulic system can effectively ensure the safe operation of equipment. A foreign body in the crushing chamber, the dynamic cone hydraulic system can automatically lower back, when the foreign body and excreted, under the system to automatically reset back of the moving cone. Back row to keep the original location of mine I continue to work.
(2) crushing chamber type
Crushing chamber type is fixed cone and fixed cone of Q form the geometric space. Crushing chamber shape on the overall performance greatly. Crusher chamber type is the major technical indicators broken. Crushing machine design from the rough broken into four specifications of the cavity, it has six possible combinations, which means that it is best suited for their unique requirements.
(3) reliable seal
With labyrinth seal, replacing the previous use of the water seal, so that dust and impurities can enter the body machine, thus ensuring the Run edible vegetable oil for cleaning, extended plain bearings, thrust ball bearings of life, making the machine reliable operation.
(4) easy to change
The past, wall crusher to replace broken very slowly, cone crusher broken new structure to replace the wall very quickly. Because of the broken wall with card shoot, put broken bolts from the top of the wall fixed. Under the broken wall fixed hydraulic nut is tightened. On the back under the broken wall materials do not need to add any padding, so rapid change, the reduction labor intensity.
(5) regulate the opening
Machine selected high pressure of the displacement sensor, adjust the row of mine mouth location is carried out in the operating room. As long as a button, there is shown in the operating table, you can see the need to adjust the row size of mine mouth, is very convenient and accurate. Machine work, motor through the fluid coupling, a small bevel gear drive eccentric sleeve at the bottom of a large gear, so that eccentric rotation, resulting in broken cone material for rotary swing. Crushing machine spindle is fixed, the only branch Shan spherical bush, breaking force to bear. As the broken shaft and the eccentric sleeve fixed broken power transmission, so the structure can withstand a greater breaking force, crushing and fine crushing of the well adapted, because the fine broken broken power is very great. Expected product size (for ultra-petty-type liner) open up when a 5m 2 50 ^ 80% (depending on the nature of materials vary). The crusher for crushing the third paragraph of the metal mine concentrator, or the fourth paragraph break; used in building material or non-metallic mining and civil engineering. Especially civil engineering required for natural sand shortage areas.

Cone crusher to the most representative of the number of symons cone crusher

Cone Crusher nesting population smaller, mixed with a compound of the non-broken things easier cause of the accident, and because, the crushing operation on the marker size demanding to be adjusted in the liner wear in time after the nesting population, which tapered Crusher insurance and adjusting device is more necessary than the primary crushing operations. Simon spring cone crusher overload the insurance, the conical shell to force the compression spring to increase their own in order to increase the nesting population, and expel non-broken material. Nesting population set to be adjusted by adjusting, turn the adjustment sleeve solid shell can be filled with the help of the cylindrical shell on the thread to bring up or down to change the nesting population size. Hydraulic Cone Crusher way of insurance and adjustment of the same Hydraulic Gyratory Crusher.

Hydraulic Cone Crusher
Hydraulic Cone Crusher is the introduction of the latest technology developed in Germany with the world advanced level of high-energy cone crusher, which not only improves the production capacity and crushing efficiency, but also expanded the range of applications, from limestone to basalt cone crusher
Rock, stone production to a variety of ore from the crushing, all of which can be broken in, fine, super-crushing operations to provide unparalleled fragmentation performance. Mine construction industry in today's alternative spring cone crusher and update general hydraulic cone crusher of the latest generation of products is a large broken stones factory and mining the best equipment.