Ball Millfor Gold Ore Grinding In CIL/CIP Processing Site. The Nile Ball Mill (also named grinding ball) is the key equipment for grinding materials, for efficiently grinding various kinds of materials into a fine powder. They are generally used to grind material which is 1/4 inch or smaller, down to a particle size of 20 to 75 microns. For the ball mills to be efficient, the grinding has to be done in a closed system with the oversize material being continuously recirculated into the cylindrical barrel for reduction. Various classifiers such as screens, spiral classifiers, cyclones, and air classifiers are used for classifying the discharge from ball mills.
Ball mills are widely used in powder-making production line such as cement, silicate sand, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc. The ball mill can grind various ores and materials with dry type or wet type. There are two kinds of ball mills, grate type and overfall type due to different ways of discharging material.
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