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矿床开采时,矿石的损失和贫化是难于避免的,因其损失贫化管理制度的不健全、检测手段落后、开展工作难度大等原因造成增大损失、贫化率的现象更为普遍存在。根据我司1980～1983年的统计资料表明:坑内脉锡矿的损失率为15.6％(197万吨),贫化率为25.2％(总采矿量中混入废石229万吨);露天砂锡矿损失率为8％,贫化率为7～8％,四年造成的经济损失达3241万元。由此可见,作为采矿工作者决不能忽视这个问题,理应引起足够重视,本文通过一些实际资料分析,谈谈降低损失贫化的经济意义和应采取的措施,供同行参考。
Mineral deposits, the loss and depletion of ore is difficult to avoid, because of its poor management system is not perfect, testing tools backward, difficult to carry out work and other reasons caused by increased losses, the phenomenon of dilution rate is more prevalent . According to the statistical data of our company from 1980 to 1983, the loss rate of pulse tin mine in the pit is 15.6% (1.97 million tons) and the depletion rate is 25.2% (2.29 million tons of waste rock are mixed in the total amount of mining) Mine loss rate of 8%, the dilution rate of 7 to 8%, four years of economic losses caused by 32.41 million yuan. Thus, as a mining worker must not ignore this issue, it should cause enough attention. Through some actual data analysis, this article talks about reducing the economic significance of impoverishment and measures to be taken for peer reference.