Close circuit grinding by a ball mill with air sweeping employs a _______________________?
Correct answer: C. Both A. & B.
- A. Classifier
- B. Cyclone separator between mill & classifier
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
Air-swept closed-circuit ball milling uses a classifier to return coarse particles to the mill, while a cyclone separates the fine product from the conveying air. Thus both the classifier and cyclone are employed.
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