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一个已进行过勘探的金矿床,矿石品位、储量和计划的处理量确定后,究竟用炭浆法还是堆浸法处理该矿最合适呢?将两者进行比较,如果用炭浆法多花的基建投资和生产费用能够被其增加的回收率所得到的经济效益弥补,选用炭浆法是合理的。选冶工艺的选择主要取决于矿石品位,在炭浆法和堆浸法之间有一个临界品位。本文描述年产量15—240万吨矿石的金选冶厂,用资金流动差分析法(differential Cash flow analysis)寻找这一临界品位。
After an exploration of the gold deposits, ore grade, reserves and planned treatment to determine whether the carbon slurry or heap leaching treatment of the most appropriate it? The two are compared, if more than the use of carbon slurry flower Of the infrastructure investment and production costs can be made up of the economic benefits of its increased recovery rate. It is reasonable to choose a carbon slurry method. The choice of metallurgical process depends mainly on the grade of ore, there is a critical grade between the carbon slurry and heap leaching methods. This article describes a gold smelter with an annual output of 15-2.4 million tonnes of ore, looking for this critical grade by using the differential cash flow analysis.