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Ball Mill Design Calculations
(Rod Mill-Ball Mill Circuit) or (SAG Mill-Ball Mill Circuit)
Model Input
Model Output
Feed rate to mill MTPH
Total work required to produce the product (kwh/short ton)
Feed rate to mill STPH
Total kW Required
Feed F
80
(μm)
Total Power Required (HP)
Product P
80
(μm)
Power Required/Ball Mill (HP)
Work index Kwh/short ton
EF3
Diameter efficiency (Table IX & VII) (Review Mill Diameter VS Horse Power)
Power required per ball mill (updated), HP
Number of Ball Mills
1)
Suggested Ball Mill Diameter (1st iteration) Table VII
1.5
Suggested L/D Ratio (Table VI)
2)
Suggested Ball Mill HP (1st iteration) Table VII
3)
L, Suggested Ball Mill Length (1st iteration) Table VII
Ratio: Needed HP/Suggested Ball Mill HP
L, Required Ball Mill Length (m)
**Select Nearest Mill with 40% Charge
Use
Ball Mill
meters Long X
meter in Diameter
Overflow Discharge
Using Table VII a Grate Discharge Ball Mill Can by Sized by selecting 1) 2) 3)
Disclaimer
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