Analysis on Grinding media Motion in Ball Mill by Discrete Element Method

摘要

Based on the research on the grinding media motion in the ball mill, the discrete equation of grinding media motion about ball mill is established and the motion regimes of grinding media is simulated using the discrete element method (DEM) with simplifying the contact model of grinding media and rock material. Comparing and analyzed the simulation results, such as motion regimes and motion trajectory of the grinding media, the discrete equation is verified. Under the method mentioned, the analysis of the relationship between grinding media motion and grinding efficiency could be got and thus some information and reference could be gained from this work.