View source for Benchmarking: Santa Rita ball mill model

[[category:Benchmarking]]
[[category:Bibliography]]
==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

{| class="wikitable" border="1"
|-
! 
! DCS Power, kW
! Mill filling
! Morrell Model, kW
! Nordberg model, kW
|-
| July 2010
| 5085
| 27.5% v/v
| 5093 (+0.2%)
| 4626 (-9.5%)
|}