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They grind ores and other materials typically to 35 mesh or finer in a variety of applications, both in open or closed circuits.Get PriceGrinding in Ball Mills: Modeling and Process ControlKeywords: Ball mills, grinding circuit, process control. I. Introduction Grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical, mechanical and chemical characteristics. Typical examples are the various ores, minerals, limestone, etc.Get PriceTwo Grinding Mill In Close Circuit For GccOperation and Elements of a Closed Circuit Ball Mill System. Cement ball mills typically have two grinding chambers. The first chamber is filled with larger diameter grinding media and lined with lifting liners. The first chamber coarsegrinds the feed material and prepares it for the second chamber. 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