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五龙金矿是以留矿法开采为主的矿山,该方法在大量放矿过程中,随着矿石的回收,逐渐开始混入废石,从而使放出矿石的品位逐渐下降,这将直接影响企业的黄金产量和经济效益。因此,在实际生产中,需要确定一个截止品位(或叫作极限品位),当到达这个品位时,应停止放矿,否则企业将出现亏损。为了给生产管理提供科学依据,本文采用经济评价方法,对放矿截止品位的确定进行探讨。
Wulong gold mine is based on the left mining method mining, the method in a large number of ore leaching process, with the recovery of ore, gradually began to mix into the waste rock, so that the release of ore grade gradually decline, which will directly affect the business Gold production and economic benefits. Therefore, in actual production, you need to determine a cut-off grade (or known as the ultimate grade), when reached this grade, should stop the ore, or enterprises will be a loss. In order to provide a scientific basis for production management, this paper uses the economic evaluation method to discuss the determination of ore cut-off grade.