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ENERGY CALCULATION MODEL OF BALL KINEMATICS -,ics based on coal load of ball mill is proposed in this paper. . Critical speed nC should be considered before other ...
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Critical rotation speed for ball-milling. ... Critical rotation speed of dry ball-mill was studied by experiments and by numerical simulation ... velocity of ball i: v s:
The critical speed of ball mill is given by, where R = radius of ball mill; r = radius of ball. For R = 1000 mm and r = 50 mm, n c = 30.7 rpm.
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TECHNICAL NOTES 8 GRINDING R. P ... can have a significant effect on the actual critical velocity. Mills usually operate in ... steel balls in a ball mill, ...