Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed?

et grinding in low viscous suspension

et grinding in high viscous suspension

ry grinding of large particles (upto 1.25 cms)

ry grindng of large particles in un-baffed mills

Actual operating speed of a ball mill may vary from 65 to 80% of the c

1.	Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed?
A.	et grinding in low viscous suspension
B.	et grinding in high viscous suspension
C.	ry grinding of large particles (upto 1.25 cms)
D.	ry grindng of large particles in un-baffed mills
Answer» E.

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Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed?

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