Magnetic separation systems eliminate costly process equipment wear

摘要

Grinding ball fragments recirculating in a milling circuit cause extreme wear to pumps, hydrocyclones, and other downstream process equipment. Magnetic separation systems have now been developed to remove grinding ball fragments directly from the mill discharge prior to reporting to the sump. The system was first applied at the Escondida copper concentrator in Chile. According to Dan Norrgran and Mike Mankosa of Eriez Manufacturing Company, in Erie, Pennsylvania, who compiled this paper, the equipment is particularly relevant to southern African base and precious metal mines.