Development of a Novel Grinding Process to Iron Ore Pelletizing .
WEBJun 1, 2020 · The earliest industrial appliion of high pressure grinding rolls (HPGR) at comminution was in 1984 in the cement industry. Since then, the equipment has been widely applied in mining activities. Despite the rapid spread across the industry, several challenges are still present in the equipment's appliion, especially considering the .