Engineering & Mining Journal

JAN 2019

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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PLANT ENGINEERING 24 E&MJ • JANUARY 2019 Newmont Mining is achieving sustain- able improvements in its comminution circuits by taking a strategic approach to plant optimization and design, and shar- ing leading grinding practices across its 11 gold mining operations in the USA, Australia, Peru, Ghana and Suriname. Business efficiency and production costs have been the main drivers for change in the company's comminution practices and, through these initiatives, Newmont has been able to reduce its pro- duction costs. Examples include address- ing power consumption at Ahafo in Gha- na and reducing grinding media usage rates at operations like Twin Creeks (USA) and Tanami (Australia); boosting through- put and metal recoveries at Boddington; and increasing throughput at Kalgoorlie Consolidated Gold Mines (KCGM). Several of these optimization efforts have involved 2017 CEEC medal win- ners Newmont's internal comminution specialist Aidan Giblett and Newmont Australia's Principal Advisor Processing Steven Hart in some capacity. They are often involved in ideas generation and definition for site improvement projects in collaboration with site teams. Once the ideas are developed and defined, their roles incorporate support of opera- tions people who take on and deliver the projects. Newmont's well defined Full Po- tential program also allows other Techni- cal Services team members to participate in the ideas generation and definition Newmont's Strategic Approach to Plant Optimization and Design is Paying Dividends CEEC Medal winners inspire miners to add value and navigate to success By Sandy Worden and Alison Keogh Newmont Mining's Full Potential program generates ideas for mill optimization, one of which reduced power consumption at the Ahafo mill (above) in Ghana. Plant Optimization — Top Tips for Project Success 1. Recognize the business driver; 2. Support innovation and new practices through leadership; 3. Implement effective systems to screen, evaluate and rank site optimization initiatives; 4. Establish cross-functional project teams; 5. Engage with stakeholders and attain buy-in; and 6. Canvas widely for improvement ideas and perspectives.

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