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由于崩落矿石和复岩的高强度高效率采矿方法的应用,引起采下矿石含铁量的降低。因此,在开采过程中降低矿石损失、贫化是提高地下矿山生产盈利的主要途径之一。表1中列举了1960—1961年克里沃罗格矿区各地下矿山原矿体和采下矿石中的含铁
Due to the application of high-intensity and high-efficiency mining methods of caving ore and compound rock, the iron content of mining ore is reduced. Therefore, reducing ore loss and depletion during the mining process is one of the main ways to improve the profitability of underground mine production. Table 1 lists the iron ore bodies in the ore bodies and mined ore under the Kliwoglu Mine area from 1960 to 1961