Brief Introduction
Ball mill is one of grinding equipments. In mineral separation, only few high- grade ore can be smelt directed after crushing and screening. Most ores must be grinded to 0.1-0.174mm even finer in order to be smelt. Grinding is an important procedure in mineral separation.
It is better to use fine mill instead of course mill. In fine grinding, the general size of material size of material is 65mm and the suitable size is under 6mm. ball mill is widely used in grinding all kinds of ore and stone of metal and nonmetal mines, building material industries.
Features
Ball mill is marginal drive and central discharge. It has discharge device which consists of en cover, bucket, gears, reducer, motor, etc. The material enter bucket by feeder through hollow shaft. When the bucket is whirling, it creates centrifugal force and frication and the steel ball and ores raise to a certain height. The material goes down by gravity with orbit of parabola. The theory of material grinded is the impact force created by steel balls and the movement of balls. The materials are discharged by end cover through hollow shaft. In the process of wet grinding, the ores are taken away by water; in dry grinding, the ores are taken away by airflow. The whirling of ball mill is by reducer driven by motor through gears. The pinion gear is joggled with gearwheel installed on the bucket. The gearwheel whirls at constant speed to drive bucket working.
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