Raymond mill lining plate of the main role is the lining plate surface and the convex peak with grinding ball, repeatedly crushing and grinding of materials. Liner material selection has a great influence on the working performance of appropriate Raymond pulverizer . In this paper, the selection principle and selection method of liner material are introduced.

1. Selection principle and method of Raymond mill lining plate material
Raymond mill lining plate of the main role is the lining plate surface and the convex peak with
grinding ball, repeatedly crushing and grinding of materials. Liner material selection has a great
influence on the working performance of appropriate Raymond pulverizer . In this paper, the
selection principle and selection method of liner materialare introduced.
Material selection must be based on different conditions to determine the different material,
which is used in the fine grinding chamber or rough grinding. The fine grinding chamber is the
main form of the pattern lining board, the small corrugated liner board and the flat lining board.
The difference of the effect of the coarse grinding and fine grinding is different, and the impact of
the grinding body is different. The same mill diameter, the grinding body diameter of the coarse
grinding chamber is big, the material block is also big, the impact on the lining plate is big, the
wear rateis high, the situation is good.
Selection principle: the material is relatively resistant to abrasion or service life; it is appropriate
to ensure the safety and reliability of the lining plate in the work process is very important. In
addition to considering the cost of the lining plate, the installation fee, the replacement of the
lining board, the labor service charge, the consumption of auxiliary materials and the production
rate, etc..
Domestic and foreign research on liner material has been carried out, at present our country has
already made the industry of wear-resistant steel material has 40~50, production process,
mechanical properties and industrial application effect is different, now has formed a variety of
small batch process characteristics. After practice, the fine grinding barn, with good effect of
medium carbon alloy chromium manganese steel. In diameter in the range 3 to 5 meters of
Raymond Mill coarse grinding bin should choose medium carbon low alloy Cr Mn, which has
good wear-resistant effect and economic benefit is also very good. The diameter is less than or
equal to 3 meters of Raymond mill, the coarse grinding chamber should use multi alloying of high
chromium cast iron, the materialsecurity and stability, but also has very good wearresistance.
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