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1、引言采用任何方法分选非均质混合物,目的都是为了得到两种或两种以上较纯的产品。利用各种矿物组分物理化学性质的差异,可以达到理想的分选。就磁选而言,磁化率的差异提供了这种分选方法的主要根据和使用界限。其它方面的因素特别是可加工的粒度范围、产量、基建投资费用和包括能量消耗、维修和停机时间在内的经营费用以及劳动力等,对于确定分选方法实用价值也是很重要的。这些不同的因
1, Introduction The use of any method to separate heterogeneous mixtures, the purpose is to get two or more pure products. The use of various mineral components of the physical and chemical properties of differences, can achieve the desired sorting. In the case of magnetic separation, the difference in magnetic susceptibility provides the main basis for this sorting method and the limits of use. Other factors, notably the range of grain sizes available for processing, output, infrastructure investment costs and operating expenses including energy consumption, maintenance and downtime, and labor, are also important in determining the practical value of sorting methods. These different causes