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Method and apparatus for flattening, compacting and crushing material

A flat pressing and material technology, applied in the direction of grain processing, etc., can solve the difficult problems of exhaust compaction effect, scraper wear and other problems, and achieve the effect of good exhaust effect, small wear amount and high efficiency

Inactive Publication Date: 2008-12-10
CITIC HEAVY INDUSTRIES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current method of flattening and compacting materials is to set a fixed-height scraper on the grinding disc. This method obviously causes serious wear on the scraper, and it is difficult to obtain a good exhaust compaction effect.

Method used

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  • Method and apparatus for flattening, compacting and crushing material
  • Method and apparatus for flattening, compacting and crushing material

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Embodiment Construction

[0016] Such as figure 1 Shown: the method for flattening, compacting and pulverizing the materials to be ground according to the present invention, the method is to place the original accumulated material layer continuously on the grinding disc rotating according to the axis, and carry out the process by passive flattening and compacting rollers. Pre-flattening and compacting, exhausting, flattening and compacting rollers have a certain large cone angle, because the rotational speed of each point on the grinding table is proportional to the radius from each point to the center, this large cone angle can make the grinding roller surface The linear velocity of the point in contact with the grinding disc is close to the same as that of the grinding disc, which is close to the state of pure rolling friction, and using its own weight, the uneven material layer is flattened and compacted under its action; flattened and compacted material With the rotation of the grinding disc, the m...

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Abstract

The invention discloses a method and a device for flattening, compacting and grinding the materials to be ground into powder. The original packing material layer (6) is continuously arranged on a millstone (3) which rotates around an axis and has a disc structure with a fixed-diameter. A passive flattening-compacting roller (4) with an included angle of 50 degrees flattens and compacts the material in advance and exhausts gas. The flattening-compacting roller and the material layer keep a pure rolling friction state. Owing to the weight of the flattening-compacting roller and certain roll surface angle, the undulating material layer is flattened and compacted under the action of the flattening-compacting roller. With the rotation of the millstone, the flattened and compacted material layer (5) rotates to a passive grinding roller (1) which has an included angel of 30 degrees to be ground into powder and to get a ground material layer (2). In addition to the weight of the grinding roller and certain roll surface angle, the grinding roller is also connected with a grinding roller pressure device (7) which can continuously grind the flattened and compacted material layer. By adopting the method and device, the material can be pre-flattened and pre-compacted and then continuously ground, thus the efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of mine crushing machinery, and in particular relates to a method and device for flattening, compacting and crushing materials to be ground. Background technique [0002] The materials to be ground (hereinafter referred to as "materials") are generally transported to the center of the grinding disc or from the side to the grinding raceway of the grinding disc. The initial state of the material on the grinding disc is mechanical accumulation, irregular shape, undulating and loose, May contain voids. An important factor related to the production capacity of the cement vertical roller mill is the quality of the material rolled by the roller under the effective pressure per unit time. If the state of the material on the grinding table is irregular in shape, ups and downs, loose and uneven inside Yes, the grinding roller rolling on it must be up and down. The current method of flattening and compacting material...

Claims

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Application Information

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IPC IPC(8): B02C15/00B02C15/06B02C23/00
Inventor 张路明黄敏黄小平梁克敏
Owner CITIC HEAVY INDUSTRIES CO LTD
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