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前言为了利用浸出或浮选法提取矿物，必须将矿石粉磨到一定细度，在大多数选矿过程中，粉磨的能耗量是很高的。过磨不仅使得矿物可净性降低，而且导致产品过滤和浓缩困难；欠磨时矿物尚没有完全暴露出来，其产品不能有效地浸出和浮选。此外，粒粒矿物能衣浓缩机和搅拌槽中沉淀?
Introduction In order to extract minerals by leaching or flotation methods, the ore must be pulverized to a certain degree of fineness. In most mineral processing, the energy consumption of grinding is very high. Over-grinding not only reduces the cleanability of the mineral but also leads to difficulties in filtration and concentration of the product; the mineral is not fully exposed during the grinding and the product can not be effectively leached and flotated. In addition, the grain mineral can coat thickener and stirred tank sedimentation?