OMC’s scope of work was to undertake an optimisation of the comminution circuit and carry out a general audit of plant performance. Recommended changes to the circuit where made to increase plant capacity based on the audit, collection of survey data and modelling. A follow up audit was then undertaken a year and a half later and these are now scheduled annually.
The Boroo 2.4Mtpa plant comprises a jaw crusher, overflow surge bin with static stockpile, SAG Ball and CIP ircuit. The SAG mill is 8.53 m ∅ x 2.6 m EGL with 2.8 MW drive and a 4.8 m ∅ x 7.6 m EGL, 3 MW Ball mill.
Significant credit must be given to site personnel for this achievement through their ownership and application of the recommendations made following the 2005, 2007, 2008 Audits. This involved: