赞比亚Chibuluma铜矿深孔崩矿采矿工艺与分层充填法的联用
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摘要
齐布鲁马铜矿位于非洲铜矿带东南端赞比亚境内,属缓倾斜、中厚、条带状沉积矿床,初期采用分层充填采矿法开采,人员在矿岩顶板下作业,浮石片冒常发生,安全隐患大,且存在采矿效率低的问题。为实现该矿体安全、高效回采,引入深孔崩矿回采工艺与分层充填法联用,可实现一次回采5个分层即整个分段,多中段同时回采。目前,齐布鲁马矿年产量大幅提升,达到60万t/a,贫化率为22%,回采率为72.2%。
Chibuluma Copper Mine is located in southeast of Africa Copper Belt in Zambia.It is a gently inclined,medium-thick and banded sedimentary deposit.In the early stage,with the sublevel filling mining method,the mining staffs worked under the loose roof,and rock fall accidents often occurred,having great safety risks and low mining efficiency.In order to realize the safe and efficient mining production,the combination of deep-hole caving mining technology with sublevel filling method was adopted.This method can stope five stratifications once,namely the whole section,and simultaneously stope in multiple middle sections.Currently the annual output of Chibuluma Copper Mine has been increased to 600000 t/a,with a dilution rate of 22%and recovery rate of 72.2%.
Chibuluma Copper Mine is located in southeast of Africa Copper Belt in Zambia.It is a gently inclined,medium-thick and banded sedimentary deposit.In the early stage,with the sublevel filling mining method,the mining staffs worked under the loose roof,and rock fall accidents often occurred,having great safety risks and low mining efficiency.In order to realize the safe and efficient mining production,the combination of deep-hole caving mining technology with sublevel filling method was adopted.This method can stope five stratifications once,namely the whole section,and simultaneously stope in multiple middle sections.Currently the annual output of Chibuluma Copper Mine has been increased to 600000 t/a,with a dilution rate of 22%and recovery rate of 72.2%.
引文
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[2] Arthurs J W.Chibuluma Geological Review[R].2009,11.
[3]苏永定.谦比西铜矿岩石力学性质分析[J].现代矿山,2012,12.
[4]钟杰,盛佳,王亚军,李向东,周益龙.二步骤采场机械化上向高分层充填采矿法研究[J].矿业研究与开发,2018,38(12):1-5.
[5]胡睿哲.双幅分采分层充填采矿法在寺庄分矿的应用[J].中国矿山工程,2018,47(6):25-27.
[6]顾生春,董群柱,王海文,孔令喜,肖晓文.盘区机械化上向水平分层充填法在哈图金矿的应用研究[J].采矿技术,2018,18(4):4-7.
[7]兰明,刘志祥,李夕兵,刘强.中深孔崩矿阶段嗣后充填法采场结构参数优化[J].中南大学学报(自然科学版),2018,49(4):933-939.
[8]占飞,付玉华,余信橙,杨明山.上向分层充填采矿法采场稳定性分析[J].矿业研究与开发,2018,38(3):39-42.
[9]张宝,刘涛,潘志鑫,王朗,李亚兵.多层破碎金矿上向水平分层充填法开采应用研究[J].矿业研究与开发,2017,37(11):9-12.
[10]解迎祥,王青,国峰,周建南,江宁.高阶段深孔崩矿嗣后充填采矿方法应用研究[J].采矿技术,2017,17(3):3-5+12.
[11]韩斌,吴建勋,王鹏,孙伟,姚松,苏先锋.大直径深孔崩矿嗣后充填采矿法应用研究[J].金属矿山,2014(6):16-20.