Screw Classifiers - Mineral Processing / MetallurgyDec 8, 2016 . To be successful in a obtaining a uniform grind that is necessary to . The first two, the RAKE classifier and the SPIRAL or screw classifier work.spiral classifier grinding,Spiral Classifier for Mineral Processing - 911 MetallurgistAug 6, 2015 . In Mineral Processing, the SPIRAL Classifier on the other hand is rotated . Rake and spiral classifiers are used for close-circuit grinding.
spiral classifier grinding