Abstract:Grinding operation plays an extremely important role in mineral processing, and the energy consumption of grinding operation accounts for about 50% of the energy consumption of mineral processing plant. Steel ball is the most commonly used grinding medium in ball mill, and it is also the most consumed part. As a new grinding medium, alumina wear-resistant ceramic ball has the advantages of light weight, high strength, high hardness, good wear resistance and temperature resistance. This paper conducts the grinding test and industrial test of mixed ceramic ball and steel ball for the high media cost and the excessive crushing content of grinding products at Guixi Smelter. The results show that the addition of medium mixing can effectively reduce the single power consumption of grinding,greatly reduce the consumption of grinding medium, effectively reduce the grinding cost and promote the improvement of indicators.