In closed circuit grinding as compared to open circuit grinding, the_________________?
Correct answer: D. Operation is economical
- A. Specific surface of product is more
- B. Product has lesser size uniformity
- C. Production rate at a given limiting size is lower
- D. Operation is economical
Explanation
A closed-circuit grinder sends oversize material back for further grinding and removes correctly sized product, giving better control and generally lower energy waste. Therefore, operation is usually more economical than open-circuit grinding for the same product specification.
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