Reasons for Wear of Liner Of Impact Crusher2019-07-30

Summary

Impact crusher is a commonly used crushing equipment in the process of mine beneficiation. The lining plate is the wearing part in the production of impact crus

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Impact crusher is a commonly used crushing equipment in the process of mine beneficiation. The lining plate is the wearing part in the production of impact crusher equipment. This paper mainly introduces the reasons for the wear of the impact crusher equipment lining.

Liner Is More Stressed

When the impact crusher equipment is working, the fixed vertebral body lining, the moving cone lining and the ground ore are just formed with three-dimensional abrasive wear, and the surface of the lining is in a complicated stress state. The extruded ore exerts tremendous pressure on the surface of the lining plate, and the high speed of the moving cone produces a large shear stress. At the same time, the squeezing, cutting and impact squeezing of the lining is the main Wear method.

Poor Working Conditions

Due to the working nature of the impact crusher equipment, the lining will inevitably be subject to wear and tear. If the impact crusher device is under severe working conditions, the lining wear will be aggravated. If the counter-shock equipment is used in ore dressing production, depending on the rock type of the ore body, the degree of wear of the impact crusher equipment lining is related to the condition and size of the ore stress, and also related to the Platt hardness of the ore compressive strength.

Ore Hardness And Particle Size

According to the hardness of the broken material of the impact crusher equipment, the degree of wear of the lining is also different. The higher the hardness of the material to be crushed, the greater the impact load of the lining in production; when the hardness of the ore is the same, it enters the crushing cavity. The greater the particle size of the ore, the more severe the liner wear.

Improper Feeding Method

If the impact crusher equipment feeding device is improperly installed, or if too much material is put into the crushing chamber, the feeding will be uneven, the material in the crushing chamber will be blocked, and the lining will be too strong, and the ore will be enlarged. The cutting wear of the lining plate causes serious damage to the lining.

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