Difference between revisions of "Benchmarking: Santa Rita ball mill model"
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Revision as of 22:28, 27 January 2013
Benchmarking: Ball Mill Power Draw - Santa Rita
Latchireddi, S. & Faria, E., Achievement of High Energy Efficiency in Grinding Mills at Santa Rita, Proceedings of the Canadian Mineral Processors Annual General Meeting, Ottawa, Canada, January 2013.
Faria, E. & Latchireddi, S., Commissioning and Operation of Milling Circuit at Santa Rita Nickel Operation, Paper #137: Proceedings of the International Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Roll Technology Conference, Vancouver, Canada, September 2011.
- Ball mill dimensions 20 ft diameter by 28.4 ft effective grinding length
 - Induction motor size 5800 kW (with gearbox and pinion)
 - Rubber lining (assume 8 inch effective thickness)
 - Ore density: 3.23 kg/L (closest sample usable for modelling is 3.10 kg/L)
 - Mill speed not given, assumed to be 74% critical
 
| DCS Power, kW | Mill filling | Morrell Model, kW | Nordberg model, kW | |
|---|---|---|---|---|
| July 2010 | 5085 | 27.5% v/v | 4747 (-6.9%) | 4626 (-9.5%) |