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Recent Process Improvements at Hidden Valley Gold Mine


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Author F Burns and G Peachey


The Hidden Valley process plant has recently undertaken a program to relieve process flow bottlenecks and improve process automation. An environment of cost reduction and restrained capital necessitated solutions that primarily utilised existing equipment and internal resources. Removing bottlenecks relieved pressure from a strained circuit that was unable to maintain consistent performance. Improved process automation firstly stabilised the process, then allowed the circuit to sustainably operate at the expanded capacity limits. These allowed implementation of an operating approach that focused process operators towards identifying and resolving process disturbances in advance. Plant recovery and throughput have markedly improved as a result.


Burns, F and Peachey, G, 2014.
Recent process improvements at Hidden Valley gold mine, in Proceedings 12th
AusIMM Mill Operators’ Conference 2014
, pp 43–54 (The Australasian Institute of Mining and Metallurgy: Melbourne).