Ball mill is one of the grinding machinery. In mineral processing, only a small number of rich ore can be sent to smelt after crushing and screening; the majority of the ore must be grinded into 0.1-0.074 mm and even more fine so as to make valuable mineral monomerly-dissociated, and then can be sent to smelt after separating. Grinding operations is an very important process in the production of mineral processing. It is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for dry and wet grinding for all kinds of ores and other grind-able materials.Structural Features of Ball Mill Machine:The ball mill machineconsists of feeding mouth, material discharging mouth, rotary part, transmission part (reducer, small transmission gears, engine, and electric control) and other major parts. The hollow shaft is made of cast steels, with changeable internal lining board.The big rotary gear is fabricated with the casting gear hobbing, with the resisting lining board in the cylinder, which is highly abrasion-resistant. This machine operates smoothly and reliably .Working Principle of Ball MillAccording to different ways of discharge and overflow ball mill machine can be divided into lattice type and overflow. This machine is grid type mill with two positions. When the machine starts work, material from the feed device air shaft spiral evenly go into first mill warehouse, the warehouse equipped with ladder liner or corrugated liner, inbuilt are different size steel balls, centrifugal force produced by steel rotating cylinder will brought the ball down after a certain height, severe impact on the material and grinding them; After coarse grinding in the first mill warehouse, then go into the second warehouse from single-compartment plate, the warehouse lined with flat liner, built-in ball, the material be further grinding;…

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