砾磨系采用砾石作磨矿介质的细碎或粗磨物料的磨矿。砾石通常是由磨矿工艺过程前面的破碎作业的矿石中,筛分出适当粒级的物料供给;砾石也可取自适当的矿石、岩石、炉渣及其它可利用的各种物料。起源于南非砾磨可用于粗磨(第一段磨矿)和细磨 Gravel mill gravel for grinding media crushing or coarse grinding of materials grinding. Gravel is usually screened out of crushed ore in front of the grinding process to be sized and sized; gravel can also be taken from the appropriate ore, rock, slag, and other available materials. Originated in South Africa pebble mill can be used for coarse grinding (the first section of grinding) and fine grinding