Lattice-type ball mill is the material after it has been broken, then smash key equipment. Grid ball mill is widely used in cement, silicate products, new building materials, refractory, fertilizer, black and non-ferrous metal processing and production industries such as glass-ceramic. Various types of ball mill and Rod mill and gravel grinder and basic structure of the mill was largely the same, but some of their parts are different. Mills usually consists of cylinders, liners, feeder, exhaust device, hollow shaft, bearing, gear and lubrication system. Grid ball mill grinding minerals in the discharge of the spaces grid plate excreted through hollow shaft out.