MINE TO MILL OPTIMISATION FOR CONVENTIONAL GRINDING CIRCUITS - A SCOPING STUDY

The scoping study a for a Mine to Mill optimisation program was carried out in a gold mine in Australia. The specific objective of this scoping study was to identify the problems and potential benefits for a Mine to Mill optimisation project. Available mining and milling data were collected during the visit and preliminary analysis was conducted to identify the potential benefits and best course of action during a Mine to Mill optimisation program. The main conclusions from the scoping study were: Preliminary blast fragmentation modelling confirms that finer ROM size distributions could be generated with significant reduction in the amount of oversize material. Assessment of crushing and milling operating strategies and preliminary simulations using JKMRC and Bond methodologies indicated possibility of 45% increase in milling throughput and better energy utilisation.