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An inside liner of ball mill

A ball mill and lining technology, applied in grain processing and other directions, can solve the problem of not finding technical inspiration, and achieve the effects of low grinding efficiency, good wear resistance and noise reduction.

Inactive Publication Date: 2006-11-22
王春展 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wear resistance of polyurethane rubber is about 5 times faster than that of high manganese steel, and about 15 times faster than that of natural rubber. So far, no technical inspiration has been found for using polyurethane rubber as the inner lining of ball mills.

Method used

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  • An inside liner of ball mill
  • An inside liner of ball mill

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Experimental program
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Effect test

Embodiment Construction

[0013] See figure 1 This figure shows the overall appearance of an embodiment of the trapezoidal plate 1 in the inner lining of the ball mill proposed by the present invention. The trapezoidal plate 1 is made of polyurethane rubber. The trapezoidal plate 1 is provided with a through hole 11 for the insertion of connecting parts such as bolts or screws. The periphery of the trapezoidal plate is provided with a joint composed of an inclined surface 12 or Inwardly shrinking steps (no specific structure is shown in the figure) constitute a joint. The trapezoidal plate 1 is a structure of a slope that gradually becomes thinner from one end to the other end, and a stepped step 13 is provided in the region of the thin end 14 thereof.

[0014] During installation, the thin end 14 and the thick end 15 of two adjacent trapezoidal plates 1 are opposed to each other, and the inclined surface 12 is closely attached to each other, and the connecting piece is used to install it on the inner sur...

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PUM

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Abstract

The invention relates to a lining of ball grinder. Wherein, said lining is the trapezium plate made from polyurethane rubber; said trapezium plate via the connector covered with polyurethane rubber is mounted on the inner surface of rotary frame of ball grinder. The invention has better abradability, better flexibility, long service life and lower noise.

Description

Technical field: [0001] The invention relates to a ball mill inner lining. Background technique: [0002] Ball mills are equipment used to crush hard materials such as ore. A ball mill usually includes a rotatable cylindrical shell and an inner liner installed on the inner surface of the shell, and many metal balls are placed in the shell. When the cylindrical shell rotates, the inner metal ball also rotates or rolls and grinds the material. Since the metal ball and the material directly contact the inner lining of the cylindrical shell in the process of movement, it is usually in frictional contact, and the metal ball will hit the inner lining in a free fall motion when it moves to the highest point, so the inner lining is Parts that are easily damaged. [0003] In order to prolong the service life of the ball mill lining, the existing ball mill lining is usually made of wear-resistant alloy steel, and the lining adopts a structure with a smooth inner surface. Due to the strong ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/22
Inventor 王春展刘凤全
Owner 王春展
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