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: 3.24 kg/L
- Mill speed not given, assumed to be 74.7% critical (13.3 RPM)
|DCS Power, kW||Mill filling||Morrell Model, kW||Nordberg model, kW
(no density correction)
|Nordberg model, kW
|July 2010||5085||27.5% v/v||4979 (-2.1%)||4706 (-8.1%)||5083 (0.0%)|