A multi-pitch shovel shoe liner for a vertical stirring mill

Abstract

The invention relates to a multi-screw-pitch shovel boot lining plate of a vertical stirred mill. The shovel boot lining plate is mounted at the bottommost end of a spiral stirrer, and comprises a lining plate body and a casting lifting lug; flat head bolt holes and lifting holes are formed in the lining plate body, an upper spiral face is arranged on the top of the lining plate body, and a lower spiral face, an outer edge protruding face, a transition face and a lining plate bottom face are arranged at the bottom of the lining plate body; according to wear conditions of different portions in the use spot, screw pitches of corresponding positions of the shovel boot lining plate are changed, the thickness of all portions particularly a lining plate upper surface and a lining plate edge is adjusted, and the aim of increasing wear resistance of the lining plate is achieved; the multi-screw-pitch spiral lining plate has the beneficial effects that the wear-resisting service life is long, the wear lives of the portions are balanced, and a supporting plate can be protected; the difference between the wear life of the lining plate and the wear life of an upper lining plate is obviously shortened, the replacement period of the spiral lining plate of the stirred mill is prolonged, the lining plate replacement frequency is reduced, and the equipment operating time ratio is improved.

Description

technical field [0001] The invention relates to the technical field of ore grinding equipment, in particular to a multi-pitch shovel shoe liner for a vertical stirring mill. Background technique [0002] Vertical stirring mill is a kind of ultra-fine grinding equipment, which is widely used in regrinding or fine grinding operations in metal mines. Its working principle is that with the help of the stirring effect of the spiral agitator, the grinding medium filled in the agitating mill and the continuously inflowing and outflowing materials to be ground perform complex grinding action and circular motion in the agitating mill cylinder, so as to realize efficient grinding of materials. [0003] The spiral agitator is composed of a main shaft, a spiral support plate and a spiral liner. During the rotation of the spiral agitator, the upper surface of the spiral liner interacts with the grinding medium and materials and is continuously worn. Therefore, the spiral liner is the mai...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of short service life of the shovel shoe liner, reduce the number of liner replacements in the dressing plant, and increase the benefit of the dressing plant, the invention provides a multi-pitch shovel shoe liner for a vertical mixing mill

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