Abstract:Because of the wide feeding particle size and the fine size of copper bearing minerals, it is difficult for traditional ball mills to meet the requirements of fine grinding. JM2200BF vertical mill is used in Dexing Copper Mine tailings recovery plant to replace the ball mill, and the relevant operating parameters of the mill, such as medium filling rate, stirring speed and grinding concentration are optimized, which greatly improves the grinding effect and has achieved good economic benefits.