Drive system for high pressure grinding rolls Increased,
High pressure grinding rolls in mineral processing Moving from cement to hard rock High pressure grinding rolls (HPGRs), also known as roller presses, are rapidly gaining acceptance in hard-rock processing, primarily due to their energy efficiency when applied in comminution. Application challengesHIGH PRESSURE GRINDING ROLLS—A PROMISING AND COST,,mainly, because of growing energy cost and global water deficit. This trend will only intensify in years to come; as ore reserves are being depleted, the time and energy consumed to recover ore will simultaneously grow. Energy-efficient grinding systems, such as high pressure grinding rolls technology, are the technically andHigh Pressure Grinding Roll HPGR - 911metallurgist,High-pressure grinding rolls (HPGRs) have struggled for acceptance into the hard-rock mining sector. CRITICAL HPGR PARAMETERS. HPGR roll diameters typically range from 0.5 m to 2.8 m, depending on the supplies, and roll widths vary from 0.2 m to 1.8 m. The aspect ratio of the rolls also varies as a function of manufacturer.