The ball mill is a kind of efficient milling machine. Mill widely used in grinding production line, such as cement, new building materials, silicate, refractory materials, chemical fertilizer, processing of ferrous metal and nonferrous metal, glass, ceramics and other production and processing. There are two kinds of ball milling method, and dry and wet. According to the difference of the purification method, it can be divided into the form type and the flow type. Ball mill is widely used in cement industry, mining, building materials, chemical and other industries.