Coal Grinding Mill Plant Manufacturers2018-11-27

Abstract

Lining plate of Coal Grinding Mill Lining is the key wear part of Coal Grinding Mill, its performance directly affects the working performance of Coal Grinding Mill. During the operation of the Coal Grinding Mill, the liner will be contin…

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Lining plate of Coal Grinding Mill

Lining is the key wear part of Coal Grinding Mill, its performance directly affects the working performance of Coal Grinding Mill. During the operation of the Coal Grinding Mill, the liner will be continuously worn and shortened. Therefore, the wear mechanism of the bushing is analyzed, and the wear-resistant material of the Coal Grinding Mill is selected correctly, which greatly improves the production capacity of the Coal Grinding Mill.

To reduce the wear rate of the lining plate of the Coal Grinding Mill can be achieved by improving the grinding process or selecting and processing the lining material. The basic requirement for selecting lining material is to have high wear resistance under certain impact load, which mainly includes three aspects: the overall hardness, composition and structure of lining plate; high impact fatigue durability, energy; resistance to certain strength impact; low wear rate, no deformation or fracture in the use process.

The liner plate of the Coal Grinding Mill mainly bears the instantaneous impact force, sliding friction force and rolling friction force of the ball and materials. For dry Coal Grinding Mill, lining wear is mainly caused by repeated impact load and fatigue damage. The abrasion of chisel Abrasives mainly occurs in grinding chamber, which complements the abrasion of grinding and refining abrasives. In the fine grinding chamber, the opposite is true. For wet Coal Grinding Mill, in addition to the above wear, wear is also the main factor.

The wear rate of the Bush is directly proportional to the impact energy of the ball, while the impact energy of the ball is directly proportional to the diameter of the cylinder, that is, the wear rate of the Bush is directly proportional to the diameter of the ball. Cylinder. The production practice shows that the wear rate of the bushing is related to many factors, such as the layout of the production process, the structure of the bushing, the operation of the Coal Grinding Mill and the filling rate of the ball. In addition, the ratio of the hardness of the lining to the hardness of the material directly affects the wear rate of the lining. Because of the high hardness and wear resistance of the lining material, the service life of the lining of the Coal Grinding Mill can be prolonged by increasing the hardness of the material.

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