A ball mill is a type of grinder used to grind or blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics, and selective laser sintering. It works on the principle of impact and attrition: size reduction is done by impact as the balls drop from near the top of the shell. A ball mill consists of a hollow cylindrical shell rotating about its axis. The axis of the shell may be either horizontal or at a small angle to the horizontal. It is partially filled with balls. The grinding media are the
Balls for use in mineral processing ball milling operations are designed for maximum abrasion resistance using high carbon content and high hardness levels. PRODUCT SPECIFICATIONS SIZE Molycop manufactures forged grinding balls for use in ball milling and regrind applications in nominal sizes from 1.0 to 4.0 in diameter.
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28/4/2017· Open Circuit Grinding. The object of this test was to determine the crushing efficiency of the ball mill when operating in open circuit. The conditions were as follows: Feed rate, variable from 3 to 18 T. per hr. Ball load, 28,000 lb. of 5 , 4 , 3 , and 2½ in. balls. Speed, 19.7 r.p.m.
20/2/2017· The ball size is often in the diameter range of 20 75 mm. The biggest size is chosen when the mill is used as a primary grinding mill. For fine grinding of e.g. sands, balls can be replaced by cylpebs, which are heat treated steel cylinders with a diameter
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