Low speed tube mill is mainly used in thermal power station for pulverizing coal of different hardness,and also in metallurgical,building material,chemical and textile industriex for producing coal powder,it has haih adaptability,reliable operation,easy maintenance and advanced technoloay.the mill is divided into six series,seveen specifications.
The mill consists of feeding device,driving assembly,rotating assembly,bearing unit,discharge chute and foundation unit,Raw coal and heat air go into the rotating assembly through the feeding device.As the shell rotates,grinding medium is raised to a height.then fal down,impact the coal and make it into powder because of the the gravity.The pulverized coal is carried to the silo through the screen,the oversize material is sent back to the shell and ground again.
Showing posts with label Ball Mill. Show all posts
Showing posts with label Ball Mill. Show all posts
Sunday, April 12, 2009
Ball Mill
Ball Mill grinds material by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground. The rotation is usually between 4 to 20 revolutions per minute, depending upon the diameter of the mill. The larger the diameter, the slower the rotation. If the peripheral speed of the mill is too great, it begins to act like a centrifuge and the balls do not fall back, but stay on the perimeter of the mill. The point where the mill becomes a centrifuge is called the "Critical Speed", and ball mills usually operate at 65% to 75% of the critical speed.
Ball Mill Application:
are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recirculated back into the mill to be reduced. Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills. Ball mill is an efficient tool for grinding many materials into fine powder. The ball mill is used to grind many kinds of mine and other materials, or to select the mine. It is widely used in building material, chemical industry, etc. There are two ways of grinding: the dry process and the wet process. It can be divided into tabular type and flowing type according to different forms of discharging material.
Ball Mill Features:
1) is an efficient tool for grinding many materials into fine powder.2) The ball mill is used to grind many kinds of mine and other materials, or to select the mine3) Ball mill is widely used in building material, and chemical industry.4) There are two ways of grinding: the dry way and the wet way.5) Ball mill can be divided into tabular type and flowing type according to differentexpelling mine 6) To use the ball mill, the material to be ground is loaded into the neoprene barrel that contains grinding media.7) As the barrel rotates, the material is crushed between the individual pieces of grinding media that mix and crush the product into fine powder over a period of several hours. 8) The longer the ball mill runs, the finer the powder will be.9) Ultimate particle size depends entirely on how hard the material you're grinding is, and the time how long the ball mill runs.
10) Our ball mills have been used to grind glass, powder food products, create custom varnishes, make ceramic glaze, powder various chemicals.
Ball mill Working Principle:
The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The ground materials are discharged through the discharging board thus the grinding process is finished.
Ball Mill Application:
are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recirculated back into the mill to be reduced. Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills. Ball mill is an efficient tool for grinding many materials into fine powder. The ball mill is used to grind many kinds of mine and other materials, or to select the mine. It is widely used in building material, chemical industry, etc. There are two ways of grinding: the dry process and the wet process. It can be divided into tabular type and flowing type according to different forms of discharging material.
Ball Mill Features:
1) is an efficient tool for grinding many materials into fine powder.2) The ball mill is used to grind many kinds of mine and other materials, or to select the mine3) Ball mill is widely used in building material, and chemical industry.4) There are two ways of grinding: the dry way and the wet way.5) Ball mill can be divided into tabular type and flowing type according to differentexpelling mine 6) To use the ball mill, the material to be ground is loaded into the neoprene barrel that contains grinding media.7) As the barrel rotates, the material is crushed between the individual pieces of grinding media that mix and crush the product into fine powder over a period of several hours. 8) The longer the ball mill runs, the finer the powder will be.9) Ultimate particle size depends entirely on how hard the material you're grinding is, and the time how long the ball mill runs.
10) Our ball mills have been used to grind glass, powder food products, create custom varnishes, make ceramic glaze, powder various chemicals.
Ball mill Working Principle:
The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The ground materials are discharged through the discharging board thus the grinding process is finished.
Ball Mill, grinding mill
Ball Mill is a key machine for further breakage after raw materials have been crushed. It is widely used in the field of cement, silicate products, new building materials, refractory materials, fertilizer, ferrous metal and non-ferrous metal beneficiation, glass and ceramics, milling various ores and other abrasive materials with dry type or wet type.
Working Principles:
The Ball Mill is a horizontal rotary drum apparatus driving by gears outside. It is a lattice pattern with two storage cells. The raw materials enter into the first cell of the Ball Mill evenly through the quill shaft in charging part. There are step liner palates or wave liner palates in the first cell which has been loaded various steel spheres of different scales. When rotating, the drum causes centrifugal force that brings the steel spheres to a certain height and then the spheres drop to impact and grind the materials. After the rough grinding in the first cell, the qualified partials will enter into the second cell through a single division plate .There are flat palates welded on the inner wall of the second cell, as well as steel spheres. The materials will be further grinded in it and at last the qualified granularities will be discharged through the unload part. Then the whole process is completed.
Structure Features
The Ball Mill consists charging part, discharging part, rotary part, transmission part (velocity decreasing machine, small conveying gear, motor, electric control) and so on. The quill shaft is made of casting steel and the inner liner palate is replaceable. The big rotary gear is processed by cast roll tooth. There is wear- resistant liner palates welded on the inner wall of the drum so that it has good wear proof ability. The Ball Mill operates stably and reliably.
It can be divided into dry Ball Mill and wet Ball Mill with lattice according to the materials and discharging way.
Working Principles:
The Ball Mill is a horizontal rotary drum apparatus driving by gears outside. It is a lattice pattern with two storage cells. The raw materials enter into the first cell of the Ball Mill evenly through the quill shaft in charging part. There are step liner palates or wave liner palates in the first cell which has been loaded various steel spheres of different scales. When rotating, the drum causes centrifugal force that brings the steel spheres to a certain height and then the spheres drop to impact and grind the materials. After the rough grinding in the first cell, the qualified partials will enter into the second cell through a single division plate .There are flat palates welded on the inner wall of the second cell, as well as steel spheres. The materials will be further grinded in it and at last the qualified granularities will be discharged through the unload part. Then the whole process is completed.
Structure Features
The Ball Mill consists charging part, discharging part, rotary part, transmission part (velocity decreasing machine, small conveying gear, motor, electric control) and so on. The quill shaft is made of casting steel and the inner liner palate is replaceable. The big rotary gear is processed by cast roll tooth. There is wear- resistant liner palates welded on the inner wall of the drum so that it has good wear proof ability. The Ball Mill operates stably and reliably.
It can be divided into dry Ball Mill and wet Ball Mill with lattice according to the materials and discharging way.
ball mill,cone ball mill,ball milling
ball mill,cone ball mill,ball milling:
The ball mill is a key equipment to grind the crushed materials, and the ball mill is widely used in powder-making production line including cement, silicate, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc.And the ball mill can grind various ores and other materials with dry type and wet type. There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material
Working Principle:
The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The ground materials are discharged through the discharging board thus the grinding process is finished.
The ball mill is a key equipment to grind the crushed materials, and the ball mill is widely used in powder-making production line including cement, silicate, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc.And the ball mill can grind various ores and other materials with dry type and wet type. There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material
Working Principle:
The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The ground materials are discharged through the discharging board thus the grinding process is finished.
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