东坪金矿矿床工业指标探讨

Discussion on the Industrial Indexes of Dongping Gold Deposit

东坪金矿是一座有三十多年开采历史的地下矿山。根据政府实现"无矿市"的目标要求,为保证矿山的经济效益,并确保在矿山被关停前充分回收国家资源,有必要对东坪金矿床的工业指标进行重新论证。采用地质方案法对拟定的三套工业指标方案进行技术经济评价,从资源综合利用率,经济效益等方面对东坪金矿工业指标进行了方案比选,结果表明,方案二(边界品位1.0g/t,边界品位2.0g/t)适应当前的技术经济条件和产业政策,资源利用率最高,且经济效益最好,推荐作为东坪金矿的矿床工业指标。

Dongping gold mine is an underground mine with more than thirty years of mining history. Based on the goal require-ment of ＂mine free city＂, the industrial indexes of Dongping gold deposit were necessarily demonstrated again to ensure the e- conomic benefits of mine and full recovery of national resources before shutting down the mine. The technical and economic e- valuations on three sets of industrial index schemes were conducted by geology scheme optimization method. And the industrial index schemes of Dongping gold deposit were comprehensively ＇compared from the aspects of resources comprehensive utiliza- tion and economic efficiency. The results showed that the No.2 scheme with the cut-off grade of 1.0 g/t% and the minimum e- conomic ore grade of 2.0 g/t adapted to the current technical and economic conditions, as well as the industrial policy, which could be recommend as the industrial index of Dongping gold deposit, with the highest utilization rate of resources and econom- ic benefit.