This article has gained the following understanding through experimental research on fine grinding of ore from a gold mine in Qinghai:it was found that the optimal grinding concentration in the experiment was 65%,and there seems to be a nonlinear relationship between grinding concentration and steel ball diameter.The optimal grinding concentration can be calculated based on the diameter of the steel ball;Grinding with a 20mm steel ball resulted in the highest yield of-200 mesh,reaching 58.56%;Once the ratio of steel balls has been determined,one size of steel ball can be added to the fine grinding process;The filling rate of steel balls in the ball mill was proposed,which is relatively good between 35%and 45%,with 40%being the best;Seven compounds including lime,sodium silicate,sodium hexametaphosphate,sodium tripolyphosphate,ammonium chloride,sodium chloride,and ferric chloride were used as grinding aids,but the grinding effect was not good.This study provides a reference for the experimental research of mineral processing in Qinghai gold mine.
关键词
金矿石/细磨实验/磨矿浓度/钢球配比/填充料/助磨剂
Key words
gold ore/Fine grinding experiment/Grinding concentration/Steel ball ratio/Filling material/Grinding aid
维普
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