Closed Circuit Grinding
If we consider a tube mill with its length equal to 5 to 6 times the diameter, it can be stated that at about a quarter of the length, half of the feed has reached the required fineness; in further grinding this mass will be overground or even agglomerated. The remedy has long been known: the grinding process must be interrupted, the fine portion separated, and the coarse portion recycled to the mill. This is the principle of closed circuit grinding.
KeywordsClosed Circuit Sieve Analysis Fine Class Perfect Separation Calculated Particle Size
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