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Gold Fields Granny Smith Grinding Circuit: A Metallurgist’s Journey of Progression

Co-author: Adrian Dance
Wednesday, September 23, 2015
First presented: 
At SAG 2015 Conference

The Gold Fields Granny Smith mine in Western Australia has been operating their grinding circuit under a wide range of conditions: campaigning very competent underground ore followed by soft oxide, primary versus secondary crushed feed and finally single-stage SAG and conventional SAG, ball mill and pebble crusher (SABC) configurations. Full circuit sampling surveys were carried out in 2012 and again in 2014 with the results included in this paper. As well as detailing the highlights of the journey that unfolded, this paper will compare the efficiency of the circuit operating in different modes.

Feature Author

Adrian Dance
With over 25 years in his field, Adrian has both industrial and consulting experience, working at operations in Australia, Canada and Peru. Recently, Adrian has established himself as an authority in comminution circuit operation and practices a proven methodology in gaining improvements from “Mine-to-Mill” optimisation projects. Adrian has spent most of his career working with existing operations to gain added efficiency. With SRK, he is now providing similar expertise to green or brownfield sites to get similar benefits very early in the mine life, in particular, the development of mill forecasting models embedded in the resource/geological block model, or geometallurgical modelling.
Plant Optimization Specialist
PhD in Mineral Processing
SRK Vancouver
SRK Africa