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现代地下矿和露天矿在逐渐推广使用大型机械化设备,其目的在于提高生产率和降低生产成本。大型机械化设备可降低每吨采出矿石的成本,但每吨商品精矿的成本一般都还在提高。导致成本提高的其它因素很多,通货膨胀就是其中之一。另一重要因素是,矿石的边界品位随采矿的机械化而逐渐降低。作者认为,机械化对采出矿石块度组成的影响是使成本提高的可能因素。
Modern underground mines and open pit mines are gradually promoting the use of large-scale mechanized equipment to increase productivity and reduce production costs. Large mechanized equipment reduces the cost of producing ores per ton, but the cost per ton of commodity concentrate is generally still rising. Inflation is one of many other factors that have led to higher costs. Another important factor is that the boundary grade of the ore gradually decreases with the mechanization of the mining. The authors believe that the mechanization of the ore block lumps of the composition of the impact is to increase the cost of possible factors.