缅甸莱比塘铜矿生物堆浸场翻堆提升浸出效果工业实践

Industrial Practice of Rehandle Operation for Myanmar Letpadaung Copper Mine Heap Bio-leaching Operation Improvement

针对缅甸莱比塘辉铜矿生物堆浸场生产,建立了完整的翻堆作业技术体系,包括作业节点判定、翻堆工艺、过程控制、效果评价等,通过机械手段将矿堆内部结构重组,改善渗滤性和浸出效果,稳定矿堆地质结构。对9个单元堆进行了翻堆作业,日均浸出速率平均增加0.86~4.09倍,浸出铜产量净增2648.38t,经济收益增加总计17739547美元,产量和经济效益均非常明显。

For chalcocite ore heap bio-leaching operation pad of Myanmar Letpadaung Copper Mine,industrial practice system of rehandle technical process was established with complete technical guide for purpose of heap bio-leaching performance improvement,including gateview decision,specification definition,process control,performance evaluation,etc.Internal geologic structure of ore heap is reconstructed and followed by improvement of permeability and leaching performance as well as structural stability through proper specified sequential rehandle operation.By implementation of rehandle operation to nine heaps in the pad,average daily leaching productivity is elevated by 0.86-4.09 times,leached copper production is raised by 2648.38 tones,which can be translated into additional net profit at USD17739547.Significant benefits of operation performance and economic effectiveness are gained.