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critical speed of of ball mill of mexico gypsum grinding

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Industrial Ball Mills 911 Metallurgist

A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing The grinding works on the principle of critical speed Critical speed A cement mill is the equipment used to grind the hard nodular clinker from the cement kiln into the fine grey powder that is cement Most cement is currently ground in ball mills and also vertical roller mills Ball mills are normally operated at around 75 of critical speed so a mill with diameter 5 metres will turn at around 14 Industrial Ball Mills use horizontal rotating cylinders that contain the grinding of volumetric loading of the mill the of critical speed which is the speed in

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