sbmzhcn Blog find crusher and grinding mill in China

August 27, 2010

let me tell you waht is a ball mill

Filed under: grinding mill — Tags: , , , , , — sbmzhcn @ 2:38 am

Ball Mill

Ball mill is a crucial equipment for the material to be milled after crushing. widely used in cement, silicate products, new construction material, fireresisting material, fertilizer, ferrous and nonferrous metel processing, and glass ceramics ,etc, It is mainly used to mill all kinds of materials with or without water

Ball Mill Working Theory

Dived by external gear,this ball mill  is horizontally tubular running type device with two cavities. The raw material enters spirally and evenly into the first cavity through input middle hollow axle. In this part, there are ladder or ripple plates, as well as different types of steel ball. Formed during cylinder rotating,the centrifugal force brings those balls into a certain height. And consequently the materail is stricked and grinded. After that, the material enters through single layer plate into the second cavity for the further grinding, which had been embedded with flat plate and steel balls. In the end, the powder is discharged by output grate plate and the milling function have been realized.

Ball Mill Structure Characteristic
This machine is made up of feeding part, discharging part, gyre part, transmission part, (decelerator, small transmission gear, generator, electrical control ) and so on.  With casting steel fot the middle hollow axle, replacable lining, casting rolling gear for the rotating big gear embedded werable plates in the cylinder, the ball mill shows the characteristic of bearing well with wearing, running steadily and woking reliably.

Remark: These mill has two ways of grinding: the dry process and the wet process.

Cross From:sbmzhcn.appspot.com/2010/08/26/121007.html

The development of grinding mill

Filed under: grinding mill — Tags: , , , , — sbmzhcn @ 2:33 am

In fact, Grinding mill  can also be said plastic Machinery A . Gridning Mill ultrafine grinding technology in recent years along with modern high-tech and new materials industries and developed a new crush engineering technology, has become the most important industrial minerals and other raw materials, processing technology , one of the modern The development of high-tech industry is important . After the materials are ultrafine , together with the increase of its surface area , can cause changes in other properties , and greatly improve the effectiveness and utilization of materials used . Ultra-fine powders is to penetrate the entire industrial sector and high-tech areas, known as the origin of modern high-tech . Ultrafine grinding technology has been widely used in chemical industry, metallurgy , mining , building materials, daily chemical , food, medicine, agriculture, environmental and aerospace and other areas. China Powder Science and Industry has become a cross-industry , cross- disciplinary major industries and powder industries in the country has accounted for first, second and more than half of the total industry output value , which plays an important role in the national economy . China Powder Industry Association ( chips ) chairman Professor Hu Rongze that "the powder industry because of its extensive , advanced and practical , in the whole national economy is of great strategic position. "
Industry Grinding mill in recent years, the development of rapid Mengjin emerged batch after batch of the elite enterprises in China Powder Science and Technology from the powder production , application and progress of the research and development equipment very quickly , there have been new equipment, new products Appeared in the market , showing great vitality and vigor. Shanghai World Bang Machine Co., Ltd., which is a major R & D crusher , flour mill and sand making business , from the enterprise since its establishment , the company had been in the forefront of technology, milling machine , from the earliest introduction of foreign advanced technology developed Ball mill , Raymond mill , high pressure micro powder mill , etc.; to the now fully independent trapezoidal overpressure patent mill , straight centrifugal mill , high pressure suspension mill and other equipment Gun step by step will China mill Powder machine technology into the forefront of world science and technology .
With the rapid development of Chinese economy , milling machine equipment in its territory the project will play a crucial role . Today, mining machinery industry has gone through a milling machine to rely on cheap labor advantage and expense of the environment of the extensive stage of development, follow the international trend of low-carbon economy , milling machine industry is actively exploring energy-saving environmental protection toward the development of the path . This is not only all levels of government need to further change the concept of things , the vast number of mills manufacturing companies need to further emancipate their minds , broaden their horizons, more needs to be international strategic vision to deal with industry.

ball mills

Filed under: grinding mill — Tags: , , , , , — sbmzhcn @ 2:19 am

Ball Mill

Ball mill is a crucial equipment for the material to be milled after crushing. widely used in cement, silicate products, new construction material, fireresisting material, fertilizer, ferrous and nonferrous metel processing, and glass ceramics ,etc, It is mainly used to mill all kinds of materials with or without water

Ball Mill  Working Theory

Dived by external gear,this ball mill is horizontally tubular running type device with two cavities. The raw material enters spirally and evenly into the first cavity through input middle hollow axle. In this part, there are ladder or ripple plates, as well as different types of steel ball. Formed during cylinder rotating,the centrifugal force brings those balls into a certain height. And consequently the materail is stricked and grinded. After that, the material enters through single layer plate into the second cavity for the further grinding, which had been embedded with flat plate and steel balls. In the end, the powder is discharged by output grate plate and the milling function have been realized.

Ball Mill Structure Characteristic
This machine is made up of feeding part, discharging part, gyre part, transmission part, (decelerator, small transmission gear, generator, electrical control ) and so on.  With casting steel fot the middle hollow axle, replacable lining, casting rolling gear for the rotating big gear embedded werable plates in the cylinder, the ball mill shows the characteristic of bearing well with wearing, running steadily and woking reliably.

Remark: sbmzhcn.appspot.com/2010/08/26/121007.html

August 19, 2010

how the ball mill works

1、A preface

Since in 1880 in industrial production ceramic grinding materials used since the ball more than 100 years history, despite a few advanced countries due to material technology development and only used in ceramic production only plays the ball mill ingredients (mixed), but most of the countries in ceramic production is widely used for grinding mill with mixed casting glaze ceramic raw materials, and paints. However, the efficiency of the ceramic production of ball mill is lower — about 1 %, so that a large amount of energy consumption. According to statistics, ceramic production in about 40 percent of the energy consumption in the ball grinding process. The ball mill process of material of particle shape and size distribution, the fineness, physical and chemical properties, production efficiency has important influence, this paper will be of ball mill process of related problems were discussed. The superficial

2 、the crushing mechanism of materials

Material in the ball mill process is shattered due to its body and abrasive abrasive results. However, the grinding process is extremely complex. If a single particles as research object, the ball mill process it may repeatedly by grinding compressive stress, which exists in the role of the particles on the surface of a new generation of inherent or expansion crack, and lead to its broken or plastic deformation. When the particles are constantly shattered. A certain level of new particles can be further ground, because the new particles on the surface of the crack, and appear a certain minimum fracture risk of crack stress reduced ACTS. When breaking process continues, the final for crushing stress could increase to make granules of plastic deformation degree. Now, with the plastic deformation, particle size is the will. Thus, when the materials are a grinding size limit. For raw materials, quartz can be ground for 1 micron in size limit, and as the extremum, limestone for 3 ~ 5 micron. That is, when the grinding materials into the scope of ultra-fine grinding mill, the effect was more difficult. In most of the grinding system has a real grind limit, this limit the main on grinding particles produced products, and the tendency to accumulate accumulate and broken up between the physical balance. Therefore, a long ball grinding extended time is meaningless, only leads to increased energy, because the meticulous grain can effectively storage needed to crack expansion of elastic energy.

The actual grinding process than the above discussion, the situation is much more complex particle surface crack expanding and new crack appear because each particle interaction among cracks, the sub-tissue particles interact with the wall, the function, the secondary role between particles and the effect with abrasive particles, particle physics and chemistry of the smell of particles and abrasive environments and aggravate, particle breaking. But, for the recognition of the essence of the visual sense or only on the basis of reasoning.

July 1, 2010

vertical roller mill

Vertical roller mill has many different forms, but it works basically the same. All of these forms of machine comes with roller (or the equivalent of roller grinding parts), and roller along the track of the disc at the level of circular movement imposed by external grinding roller in the vertical pressure on the disc on the material being the joint action of compression and shear, and to crush.
Material grinding process: motor through reducer rotating drive disc, the material falls from the mill under the central entrance and exit, under the action of centrifugal force to the disc edge by the roller to move and the crushing, grinding out lap after the material was speed up the flow to and vertical mill with one of the separator, after the meal by the separator back to the mill, the re-grinding; powder while grinding out with air, dust collection equipment in the system to collect down, that is, products . Established through the mill in the pneumatic conveying of materials, a larger air flow rate, which can use waste heat of gas, at the same time dry grinding operations.

Vertical Roller Mill Principle:
Used in cement grinding production grinding parts of its various forms, there is a cylinder, cone type, ball type, etc., and roller surface is also flat, curved, convex round noodles. Applied to the grinding roller to roller grinding along the track bed in close contact with the material strength of a spring pressure, hydraulic, etc..

How Vertical Roller Mill Works:
It has two pairs of grinding rollers, each pair of roller composed of two narrow rollers, mounted on the same axis and can rotate at different speeds. There are two circular disc slot, and roller to the tire shape, work pressure in the tank. Disc roller and the relative sliding velocity between small and roller can swing, even if the roller sleeve and the disc after the liner wear can guarantee a good abrasive, will not affect the grinding effect. Roller symmetrical structure, one side can be upside down after use and wear.
Material grinding process: hydraulic pneumatic roller device through the pressure applied to the material on the crushing of materials, the materials have been moved to crush the edge of disc, from the disc around the nozzle from the exhaust air to improve these materials to Separator.Meal to separate returns after a concentrated mill, fine powder was collected in the precipitator unloading. In the gas flow is small, the meal can not be increased to enhance air flow, they would fall through the nozzle discharged outside the mill, bucket elevator to be transported to the feeder of vertical roller mill, and was re-grinding mill feed people. This cycle features of the way there:
① ring by adjusting the air valve, can change the product fineness can Shide mill bed load material uniformity and stability, improving the grinding efficiency;
② coarse particles in the external circulation, helps reduce Fan power consumption and overall system power

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