Quantifying the influence of liner shape and mill filling for performance optimization

Toor, Paul, Franke, Jochen, Powell, Malcolm, Perkins, Thomas, Bird, Matt and Robertson, Jason (2011). Quantifying the influence of liner shape and mill filling for performance optimization. In: K. Major, B.C. Flintoff, B. Klein and K. McLeod, SAG 2011 Conference. Fifth International Conference on Autogenous & Semiautogeneous Grinding Technology, Vancouver, Canada, (). 25-28 September 2011.

Author Toor, Paul
Franke, Jochen
Powell, Malcolm
Perkins, Thomas
Bird, Matt
Robertson, Jason
Title of paper Quantifying the influence of liner shape and mill filling for performance optimization
Conference name Fifth International Conference on Autogenous & Semiautogeneous Grinding Technology
Conference location Vancouver, Canada
Conference dates 25-28 September 2011
Proceedings title SAG 2011 Conference
Place of Publication Canada
Publisher Canadian Institute of Mining and Metallurgy
Publication Year 2011
Sub-type Oral presentation
Editor K. Major
B.C. Flintoff
B. Klein
K. McLeod
Language eng
Abstract/Summary The operation of SAG mills is variable over time due to their continually changing liner shape, mass and subsequent load motion. However, this tends to be poorly accommodated in liner design and mill control, with only limited compensation made for this influence, usually in the first few weeks after a new liner is installed. With ever-increasing ore competency, increasing energy costs and decreasing ore grades, simplified design and operational approaches that compromise the achievable mill efficiency are no longer adequate. This paper presents a methodology that has been developed to measure and account for the changes in mill performance as the liner wears. This involves monitoring all liner profiles – in other words the three-dimensional liner shape - over the life of the liner, then conducting controlled surveys at different stages of the liner wear life, and correlating the mill performance to the liner profiles. The measured liner mass is modelled to provide an ongoing meaningful load mass measure that excludes the liner mass.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Paper number 47

Document type: Conference Paper
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Thu, 13 Oct 2011, 11:45:03 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre