Energy saving ball mill for grinding various ores and other materials, are widely used in mineral processing, building materials and chemical industry can be divided into two kinds of dry and wet grinding methods. According to different ways of discharge can be divided into two kinds of lattice type and overflow. Changed the original mill structure, so that the body, chassis integration, installation, hanging on the basis of a one-time flat. Main bearings double row self-aligning spherical roller bearings, can reduce energy consumption by 30%, from the lattice type forced to overflow discharge control discharge, can improve grinding fine-grained, processing capacity can be increased by 15-20%.