Ball mill condition | Capacity (kg/hour) | power (kW) | energy cost (?ton) | wear (?ton) | investment cost (? | capital cost in ?ton | diameter of ball mill (m) | length of ball mill (m) | speed (rpm) | speed (rph) | weight of balls (N) | height of drop (m) | total cost (?ton) | |
Scale | residence time (seconds) | |||||||||||||
Lab* | 300 | 192 | 0.23 | 0.12 | 0.12 | 4294 | 4.97 | 0.6 | 0.3 | 45 | 2700 | 600 | 0.5 | 5.20 |
Ind** | 300 | 30,000 | 36.00 | 0.12 | 0.12 | 116,281 | 0.84 | 1.2 | 3 | 22.5 | 1350 | 96,000 | 1.0 | 1.08 |
Lab | 90 | 640 | 0.23 | 0.04 | 0.04 | 4294 | 1.49 | 0.6 | 0.3 | 45 | 2700 | 600 | 0.5 | 1.56 |
Ind | 90 | 30,000 | 10.80 | 0.04 | 0.04 | 53,167 | 0.38 | 1.2 | 1 | 22.5 | 1350 | 28,800 | 1.0 | 0.45 |