Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill.) ?
Correct answer: C. D2.5
- A. D
- B. 1/D
- C. D2.5
- D. 1/D2.5
Explanation
For a fixed ball load and operating condition, ball-mill power scales approximately with the 2.5 power of mill diameter, so power is proportional to D^2.5. This reflects the combined effects of mill size, mass of the charge, and lifting distance.
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