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Е.П.Леман等分析了X射线辐射法预选复合矿石的特性,其目的在于分选出一部分有用成分品位低于规定标准的废石。同时还探讨了采用预选法将原矿按其中一种成分的含量进行分离的问题,这种成分的的含量决定矿石的品级,并按其特征X射线的强度进行评价。 但是,预选的任务并不局限于这两种情况。在许多矿床中,大部分原矿是合格的矿石,废石的数量很少,以致于进行预选在经济上是无利的。同时,这样的矿石通常是各种自然类型矿石的混合矿,而且其中的每一类矿石都符合一定的技术品级,所以选矿及进一步加工以
Е.П.Леман analysis of X-ray radiation pre-selected composite ore characteristics, its purpose is to sort out some of the useful components of the grade below the required standard waste rock. At the same time, the problem of using pre-selection method to separate raw ore according to the content of one of the components is discussed. The content of the component determines the grade of the ore and is evaluated according to the intensity of its characteristic X-ray. However, the pre-selection of tasks is not limited to these two cases. In many deposits, most of the ores are qualified ores and the amount of waste rock is so small that pre-selection is economically unfavorable. At the same time, such ore is usually a mixture of various natural types of ore, and each of these types of ore meets a certain technical grade, so beneficiation and further processing