前言众所周知,在大多数选矿厂,磨矿是极为重要而费用很高的作业。它消耗大量的能量。据估计,在选矿领域,世界电能约有3—5％用于破碎各种矿物,而磨矿要耗掉25～50％,但就磨矿的目的——生成新表面而言,其能效不到1％。磨矿钢耗也是惊人的,仅湿式磨矿世界每年要耗掉50多万吨成品钢。矿石品位的降低,需要更细的磨矿、予期上述消耗还要增加。我国矿物资源特点是贫矿多、共生矿物多、细粒嵌布的矿物多,因此,需要细磨的矿石日益增加。然而我国磨矿作业较之世界先进国家存在“两高一低”(能耗高,钢耗 Preface As we all know, in most concentrator, grinding is extremely important and expensive operation. It consumes a lot of energy. It is estimated that in the area of ​​beneficiation, about 3-5% of the world’s electricity is used to crush various minerals, whereas grinding consumes 25-50%, but its energy efficiency is not as good as that for grinding new surfaces To 1%. Grinding steel consumption is also staggering, only wet grinding world consumes more than 50 million tons of finished steel each year. Lower ore grade, the need for more fine grinding, the above consumption also expected to increase. The characteristics of China’s mineral resources are lean ore and more symbiotic minerals, fine grain embedded minerals and more, therefore, the need for fine grinding of the ore is increasing. However, China’s grinding operations than the world’s advanced countries exist “two high and one low” (high energy consumption, steel consumption