A method of adding balls to a large semi-autogenous mill with a diameter of 10 meters

Abstract

The invention relates to the field of sphere adding of large-scaled semi-autogenous mills, in particular to a sphere adding method for a large-scaled semi-autogenous mill with the diameter being 10 meters. By controlling the power of the mill and the mine returning quantity, the optimum sphere adding effect is achieved. In addition, the proportion of the volume of a sphere to the volume of the mill is checked at any time. When the proportion of the volume of the sphere to the volume of the mill is lower than 9%, the volume of the sphere should be replenished up to 9%. According to the sphere adding method, the granularity qualified rate of mine grinding products and the mine grinding efficiency of the mill are improved, the sphere consumption and the power consumption are lowered, and the final aim that the mine separating cost is lowered is achieved.

Description

technical field [0001] The invention relates to the field of adding balls to a large semi-autogenous mill, in particular to a method for adding balls to a large semi-autogenous mill with a diameter of 10 meters. Background technique [0002] The ore has high hardness, complex composition, fine particle size of iron minerals, and extremely difficult grinding; the 10-meter-diameter semi-autogenous mill used in the grinding process of the mineral processing system is the largest semi-autogenous mill in my country. Due to the high hardness of the ore and the large diameter of the mill, the consumption of grinding media remains high. Facing the severe situation of the sharp drop in international ore prices, a reasonable method of adding balls is sought to reduce ball consumption, improve beneficiation efficiency, and reduce beneficiation costs. ,crucial. Contents of the invention [0003] The technical problem to be solved by the present invention is: how to determine the reas...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: how to determine the reasonable time and amount of balls to be added, accurately control the filling rate of the grinding medium, prevent the balls from overlapping and excessive wear, prevent the lining board from being empty at low material level, reduce the consumption of the lining board, and realize Reduce ball consumption, liner consumption and power consumption, thereby reducing the production cost of beneficiation