The load estimation method has you physically measure distances in the mill Follow the charts below and pull them into this calculator If you can clearly see inside the mill, use the liner method

Get PriceThe geometry of a mill with conical ends is shown in Figure 86 The total volume inside the mill is given by Vm 4 D2 mL 1 2(Lc L) L 1 (Dt/Dm) 3 1 Dt/Dm (816) The density of the charge must account for all of the material in the mill including the media which may be steel balls in a ball mill, or large ,

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Get Price A) Total Apparent Volumetric Charge Filling – including balls and excess slurry on top of the ball charge, plus the interstitial voids in between the balls – expressed as a percentage of the net internal mill volume (inside liners) B) Overflow Discharge Mills operating at low ball fillings – slurry may accumulate on top of the ball charge; causing, the Total Charge Filling Level to ,

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Get PriceThe format for these models was adapted from the Bureau's Cost Estimating System (CES) Handbook , for a 10-yr mine life32 acres per 1,000 st/d mill capacity, and for a 20-yr mine life-62 acres per 1,000 st/d capacity (adapted from 32) , The oversize is ground in ball mills, then pumped back to the cyclones to achieve a minus 200 mesh ,

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Get PriceSep 01, 2016· According to the ball mill survey database presented in Section 4, the volume-based residence time of slurry in an overflow ball mill should be greater than 2 min for a less than 59 m diameter ball mill, and 1 min for a larger than 59 m ball mill

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Get PriceAccording to the pattern, the residence time thresholds beyond which overfilling a ball mill is likely to occur were defined For a ball mill with an internal diameter smaller than 59 m, the volume-based residence time threshold is set at 2 min; and for a ball mill larger than 59 m ,

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