HPGRs in hard-rock mining

Egbert Burchardt looks at some current and future installations, and outlines the potential for HPGRs to reduce energy and water consumption at hard-rock mines

HPGRs in hard-rock mining HPGRs in hard-rock mining HPGRs in hard-rock mining HPGRs in hard-rock mining HPGRs in hard-rock mining

The first high-pressure grinding rolls (HPGRs) were successfully introduced in the cement industry in the late 1980s, providing operators with significant energy savings.