中国矿山工程

In order to evaluate the application effectiveness of HPGR wet screening closed-circuit process and provide valuable industrial application data for similar copper beneficiation, this paper systematically studies and analyzes the application of HPGR closed-circuit wet screening process in a copper beneficiation. The industrial practice of High-Pressure Grinding Roll ( HPGR) closed-circuit wet screening process has proved that compared with the three-stage one closed-circuit process for treating the same ore, the fine particles are significantly increased, the particles below 3 mm are increased by 24. 90% ; the unit energy consumption is reduced by 2. 28 kW·h per ton of ROM, and the total power consumption is reduced by 10. 5% . The reduce of materials consumption is remarkable. The steel ball consumption is reduced by 15. 8% . The flotation recovery is increased by 0. 5% ; However, the service life of the HPGR studs was relatively low, about 6 500 h.