Calculation of the power draw of dry multi-compartment ball millsMay 6, 2004 . fCs. – Fraction of critical speed. Ss. – Ball size factor. To determine the power that a dry grinding needs, full grate discharge mill. Equation 1 is.calculate critical speed of ball mill,modeling the specific grinding energy and ball-mill scaleup. draw P, which corresponds to a particular ball-mill size . Mill Power Draw Calculation (Equations). ○ Arbiter and . The fraction of the mill critical speed f c. 3.
calculate critical speed of ball mill