what is thedifference between closed circuit and open ciecuit ball mills in cement

Closed circuit systems for ball mills | Industrial Efficiency Technology ...

The closed-circuit grinding system, all ground materials are led into a separator ... In China, for 5000t/d cement production line using a ball mill with closed circuit system, power consumption index is reported to range between 38 ~ 42kWh/t...

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Ball mill

A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing ... In doing so, the solid particles in between the balls and ground are reduced in size by impact. ......

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