世界上最大的锌矿山——美国红狗锌矿山  

The Zinc Mine with the largest production in the world——America Red Dog Zinc Mine

作　　者：李长根[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《矿产综合利用》2012年第3期62-66,共5页Multipurpose Utilization of Mineral Resources

摘　　要：美国红狗锌矿山是世界上现有最大的锌矿山,具有世界上最丰富的锌资源。截至2009年底,该矿山的矿石储量为5610万t,其中含16.6%Zn、4.6%Pb和86g/t Ag。另有总资源量为3280万t,其中含13.5%Zn、4.6%Pb和90g/t Ag。矿山采用常规的露天开采方法开采矿石。平均每天开采1万t/d高品位硫化矿石。剥采比(废石∶矿石)为0.8∶1.0。选矿厂采用常规的磨矿-优先浮选铅锌流程,得到含银的铅精矿和锌精矿。获得的锌精矿的锌品位为55.2%,其中含铅3%和含银137g/t,锌回收率为87%。铅精矿的铅品位为56.1%,其中含锌11.7%和含银1435g/t,铅回收率为58%。矿山和选矿厂基本投资约为10亿美元。The America Red Dog Zinc Mine is the zinc mine with the largest zinc production in the world. It has the world＇ s largest sources of zinc. To the end of 2009 the mineral deposit has ore reserves of 56.1 million containing 16.6% Zn,4.6% Pb and 86g/t Ag, as well as ore resources of 32.8 million tones containing 13.5% Zn ,4.6% Pb and 90g/t Ag. Red Dog mine is a conventional open-pit operation. The average daily mining rate will be 10, 000 tpd of high grade ores. Its stripping ratio （ waste ： ore） is 0.8 ： 1.0. The concentrator used a conventional SAG mill- selective flotation flowsheet. The zinc concentrates and lead concentrate were obtained. The zinc concentrates contain 55.2% Zn, 3% Pb and 137g/t Ag at zinc recovery of 87%. The lead concentrates contain 56.1% Pb, 11.7% Zn and 1435g/t Ag at lead recovery of 58%. The capital cost of mine and concentrator approaches US $ 1 billions.

关 键 词：锌矿山 露天采矿 选矿厂 锌矿 铅矿 磨矿 浮选 

分 类 号：TD928[矿业工程—选矿]