Grinding method of ceramic media in tower mill

Abstract

The invention relates to an ore grinding method adopting a ceramic dielectric applied to a tower mill. According to the ore grinding method, the ore grinding dielectric is a ceramic body with the Mohs hardness being 7-9 and the density being 3.0-6.0 g / cm<3>, and the tower mill is filled with the ceramic body with a certain filling ratio for grinding materials. The ceramic body which is high in hardness and abrasion resistance and medium and low in density is used as the ore grinding dielectric, almost all defects of high-chromium steel balls used as the ore grinding dielectric can be overcome, and the purposes of efficient grinding, cost reduction and the like can be achieved.

Description

technical field [0001] The invention belongs to the field of ore grinding, in particular to an ore grinding method in which ceramic media are used in tower mills. Background technique [0002] As a preparatory operation for mineral separation, ore grinding plays an extremely important role in the mineral processing industry. The quality of grinding products directly affects the selection index of the mineral processing plant, and the power consumption and metal consumption in the grinding process occupy a high proportion of the operating cost of the mineral processing plant. As a new equipment in the field of ore grinding in recent years, the tower mill has been widely recognized for its high grinding efficiency and energy-saving effect. Therefore, the tower mill is becoming a new equipment to replace the ball mill as the grinding equipment in the fine grinding stage. The current grinding medium of the tower mill is high chromium steel balls, but there are some shortcoming...

AI Technical Summary

Problems solved by technology

[0003] 1. When the steel ball is used as the grinding medium, the operating power of the mill is relatively large

[0004] 2. The weight of the steel ball is heavy, resulting in a large torque on the stirring shaft of the tower mill, and the low speed of the mill, so that the grinding efficiency of the tower mill cannot be continuously improved.

[0005] 3. When the mill is initially started, because the steel balls are prone to rust and harden, the starting power is too large, and it is difficult to start the mill

[0006] 4. The wear of steel balls is high, and the cost of steel consumption caused by grinding is still relatively large