07-10-2019· A ball mill consists of a hollow cylindrical shell rotatiTECHNICAL NOTES 8 GRINDING R. P. KingAdditional power is required to keep the mill rotating. 8.1.3 Power drawn by ball, semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential features of a model for mill power.

30-01-2021· DRAW, P. The mill power draw P is a function of: 1. The fraction of mill filling f. L. 2. The fraction of the mill critical speed Read more. Mechanical alloying in a planetary ball mill : kinematic - Hal. 1 Jan 1994 giving the velocity and the acceleration of a ball in a planetary . Get Price → Ball Mill Design Equations And Modelling Pdf ...

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15-07-2013· What is the Bond Work Index Formula-Equation? In case you had forgotten, here is a classic: You can read all the details of this now "Biblical" grinding power requirement calculation formula in Fred Bond's original paper.. You can also review the step-by-step Bond Work Index Test Procedure I posted here.. See this useful summary Table of Bond Work Index by Minerals.

Fred Bond Ball Mill Power Draw Equations. EF5BM P8010.3 1.145P80 3 The EF4 formula requires both the rod mill and ball mill work index rod mill Wi is used to calculate the optimal feed size and because this is a single-stage ball mill calculation, the F80 is actually the rod mill feed size 10,000 m from Table 1 and the P80 is the ball mill circuit product.

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fred bond ball mill power draw equations. conclusions continued in the present work, equations were also derived, giving zthe ballmill power drawp as a function of its dimensions internal mill diameter d and length l, zthe ballmill power drawp as a function of the feed d f mm and the product size d mm, the bond work index w i kwhshort ton and the mill throughput t short