Benchmarking: Santa Rita ball mill model
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%) |
