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The natural sand has several disadvantages compared to artifial sand, which make artificial sand become the mainstay of stone-production in th field of cunstruction. The natural sand available in the riverbed is very course and contains very much percentage of silt and clay which reduce the strength of the concrete and hold dampness. Pulled by the need of expanding domestic demand, infrastructure investment, such as roads, railways etc, is increasing. Such large engineering project needs lots of high quality sand . However，natural sand is non-renewable resources, with the large-scale exploitation, is increasingly drying up. In such a scenario, artificial sand is seen as a welcome alternative to natural sand.

Ball mill is one of the main equipment of grinding material, yield per hour up to several tons to several hundred tons.In the work of grinding material requires a large amount of grinding body, under normal circumstances, the cylinder of Ball Mill grinded material for grinding body weight 14%, grinding body volume accounted for the effective volume of the 30%~50%, grinding body weight from several tons to several hundred tonnes. Ball mill cylinder body in rotation, grinding media and materials will always be in the one side of the cylinder is arc section, weighing up to dozens of tons, hundreds of tons of.The center of gravity of the axis always deviates from the axis of rotation.Cylinder in operation must take a grinding body and materia

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