Experimental study on fine grinding of gold ore in a certain gold deposit in Qinghai Province
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.
gold oreFine grinding experimentGrinding concentrationSteel ball ratioFilling materialGrinding aid
万方数据
维普
