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Unlocking the Value in Waste and Reducing Tailings – Magnetite Production at Ernest Henry Mining

机译：释放废物的价值并减少尾矿–欧内斯特·亨利矿业的磁铁矿生产

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摘要

The Ernest Henry Mine (EHM) is situated 38 km north-east of Cloncurry in the Mount Isa –rnCloncurry mineral district of northwest Queensland. The EHM orebody is an iron oxide copperrngold deposit with an average grade of one per cent copper, 0.5 g/t gold and 23 per cent magnetite,rnwith current reserves of approximately 88 Mt.rnThe copper concentrator is a single line plant with a nominal throughput rate of 1300 tonnesrnper hour. An average of 350 000 tonnes of concentrate is produced each year containing aroundrn100 000 tonnes of copper metal and 120 000 troy ounces of gold.rnIn December 2009, Xstrata Copper announced approval of a $589 M investment to extend thernlife of EHM to at least 2024, through the transformation of open pit mining operations to a majorrnunderground mine together with the construction of an associated magnetite extraction plant.rnThe EHM magnetite plant extracts the magnetite from the copper concentrator's tailings stream.rnIt will produce approximately 1.2 Mt of magnetite concentrate per annum at full capacity forrnexport to Asia, making EHM Queensland's fi rst iron ore concentrate exporter. Construction of thernmagnetite extraction plant commenced in July 2010 and was completed in January 2011.rnThis paper gives an overview of the development of the EHM magnetite extraction plant fl owrnsheet from the early mineralogy and laboratory test work through to the plant commissioning andrnearly operation of the base plant. It has a major focus on the commissioning learnings from thernplant start-up and includes a review of the operational performance of the plant versus originalrndesign and expectations.
机译：欧内斯特·亨利矿山（EHM）位于昆士兰西北部伊萨山-rnCloncurry矿区的Cloncurry东北38公里。 EHM矿体是一种氧化铁铜金矿床，平均品位为铜，0.5 g / t黄金和23％的磁铁矿，目前的储量约为88Mt。每小时1300吨的速度。每年平均生产35万吨精矿，其中包含约100,000吨铜金属和12万金衡盎司黄金。2009年12月，Xstrata Copper宣布批准5.89亿美元的投资，将EHM的使用寿命延长至至少2024年，通过将露天采矿作业转换为大型地下矿山并建造相关的磁铁矿提取厂.rn EHM磁铁矿厂从铜选矿厂尾矿流中提取磁铁矿.rn每年将产生约1.2 Mt磁铁矿精矿。大量出口到亚洲的能力，使EHM昆士兰州成为首个铁精矿出口国。磁铁矿提取工厂的建设于2010年7月开始，并于2011年1月完成.rn本文概述了EHM磁铁矿提取工厂流程的发展，从早期的矿物学和实验室测试工作一直到工厂的调试和基地的早期运营。厂。它主要侧重于从热电厂启动中的调试学习，并包括对热电厂运行性能与原始热电厂设计和期望的回顾。

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  • 来源
    《Iron ore 2011》|2011年|p.529-535|共7页
  • 会议地点 Perth(AU)
  • 作者

    J Siliézar; D Stoll; J Twomey;

  • 作者单位

    Magnetite Interface Metallurgist, Ernest Henry Mining, PO Box 527, Cloncurry Qld 4824. Email: jsiliezar@xstratacopper.com.au;

    Magnetite Project Metallurgist, Ernest Henry Mining, PO Box 527, Cloncurry Qld 4824. Email: dstoll@xstratacopper.com.au;

    Manager Magnetite Project, Ernest Henry Mining, PO Box 527, Cloncurry Qld 4824. Email: jtwomey@xstratacopper.com.au;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 铁矿石;
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