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Both predict a single size of ball to recharge an operating mill there are different equations for the range of ball sizes for the first charge of a new mill The two equations are in Jaime Sepulveda s MolyCop tools software as d = 606 F80 0263 ρ Wi 04 N D -025 d = 1354 F80 05 ρ Wi / ,...

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LG A mill power equation for SAG mills Minerals and Metallurgical Processing Feb 1990 pp57-62 Gross power No load power Net power drawn by the charge 813 The net power is calculated from Net power KD25L e c/ Watts 814 In equation 814, D is the diameter inside the mill liners and Le is the effective length of the mill including the ....

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Therefore, ball abrasion rate in the mill determined by Equation 10 A𝑟= At F =40033218 131328 =3048 g/ton 10 In above equations 𝑣m 3total mill volume m , 𝑁 number of balls which exist in mill, 𝐴𝑏 each ball abrasion g , 𝐴t total ball abrasion in the mill g , 𝑣b each ball volume m3 , 𝑓b...

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Critical Speed Of Ball Mill Equation Critical Speed Of Ball Mill Equation Mill Critical Speed Formula Derivation 2 replies In practice Ball Mills are driven at a speed of 5090 of the critical speed the factor being influenced by economic consideration Mill capacity can be increased by increasing speed but there is very little increase in efficiency ie kWht 1 when the mill is operated above ....

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Ball Mill Critical Speed - Scribd The Effect of Fraction of Mill Critical Speed on Kinetic Breakage Parameters of Clinker and Lizenithne in a Laboratory Ball Mill , Then, S, and BM equations were determined from the size distributions at different grinding times, and the model....

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### Derivation Of Critical Speed In A Ball Mill

Derive The Equation Of Critical Speed Of Ball Mill The critical speed of the mill c is defined as the speed at which a single ball will in equation 814 d is the diameter inside the mill liners and le is the size reduction process in a perfectly mixed ball mill can be derived directly from the...

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Ball Mill Critical Speed Formula Derivation Ball Mill Critical Speed Mineral Processing Metallurgy A Ball Mill Critical Speed actually ball, rod, AG or SAG is the speed at which the centrifugal forces equal gravitational forces at the mill shells inside surface and no balls will fall from its position onto the shell...

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