Crushing members used in pulverizers
AssigneeING SHOJI Co., Ltd.
InventorHajime Kawatsu
Life of this patent
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Abstract
The crushing surfaces (a) or (b) are composed of two types of blocks 1 and 2 which differ in wear resistance and which are arranged alternately.
Claims10
A crushing member for use in a pulverizer having a nip-in direction, said crushing member having a crushing surface composed of two types of crushing blocks which differ in wear resistance and which are arranged alternately and at an angle of less than 45 degrees to the nip-in direction, said crushing blocks having outer surfaces which form a continuous smooth surface before use of said crushing member,
- whereby:
- (a) when said crushing member is first used, the crushing blocks having a lower wear resistance will wear away more quickly than the crushing blocks having a higher wear resistance, forming recesses with depths 1, and
- (b) thereafter the two types of crushing blocks will wear away at approximately the same rate, preserving the recesses with depths 1.
A crushing member for use in a pulverizer having a nip-in direction, said crushing member having a crushing surface composed of two types of crushing blocks which differ in wear resistance and which are arranged alternately in the nip-in direction, said crushing blocks having outer surfaces which form a continuous smooth surface before use of said crushing member, the crushing blocks having a higher wear resistance being wider in the nip-in direction than the crushing blocks having a lower wear resistance and the crushing blocks having a lower wear resistance having a wear resistance of from 10-90 percent of the wear resistance of the crushing blocks having a higher wear resistance,
- whereby:
- (a) when said crushing member is first used, the crushing blocks having a lower wear resistance will wear away more quickly than the crushing blocks having a higher wear resistance, forming recesses with depths 1, and
- (b) thereafter the two types of crushing blocks will wear away at approximately the same rate, preserving the recesses with depths 1.
Dependencies are inferred from the claim text.