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critical speed formula for ball mill grinding equipment

critical speed formula for ball mill grinding equipment

Critical Speed_. When theball mill cylinderis rotated, there is no relative slip between thegrinding mediumand the cylinder wall, and it just starts to run in a state of rotation with the cylinder of themill. Thisinstantaneous speedof themillis as follows: N0 —-mill working speed, r/min; K’b —speed ratio, %.

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