Bruce Armitage (in the middle) pictured with Metso people.
Lake Shore Gold realized $1.5 million annually in energy savings while increasing production nearly 30% with the help of Metso’s liner and grate solutions. This project was the cornerstone that allowed Armitage and Lake Shore Gold to save $12 million and more energy than any other organization in Ontario in 2018.
Q1. Can you tell us a little bit about Lake Shore Gold?
A division of Tahoe Resources*, Lake Shore Gold is a Canadian-based gold producer with operations in Timmins, Ontario. We mine gold from our two underground mines, Timmins West and Bell Creek. All ore is processed at a central milling facility located at Bell Creek, which runs 24 hours a day, 7 days a week.
At Lake Shore Gold, energy efficiency considerations are included in all aspects of our business planning and operations, along with sound business management practices and our responsibilities as a corporate citizen. Being a low gram per tonne operation, we are committed to reducing our energy costs, which gives us a competitive advantage in the industry.
Q2. What are the characteristics of your production?
The Bell Creek Mill is a conventional gold mill circuit, involving crushing and grinding, gravity, and leaching, followed by carbon-in-leach (CIL) and carbon-in-pulp (CIP) processes for gold recovery. Most gold mills (approximately 90%) worldwide use conventional methods for gold extraction. I would say that conventional methods for gold extraction are very energy intensive, and the industry struggles to reduce its energy consumption.
Q3. Could you share how you have addressed energy efficiency?
When I started at Lake Shore Gold, the energy program was in its very early stages. Through hard work and dedication by our energy team, we took the program from its infancy to industry leader in less than a year.