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The Central Eyre Iron Project – Process Selection and Design

机译：中央艾尔铁项目–工艺选择与设计

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摘要

The Iron Road Limited Central Eyre Iron Project (CEIP) area, located on the Eyre Peninsula ofrnSouth Australia, covers extensive Archaean iron formations that occur as coarse-grained magnetitebearingrngneiss. The cumulative strike length, estimated from aeromagnetic data, is at least 95 km.rnThe project is located in a grain growing area 185 km west of the existing iron ore and steelrnmaking operations of OneSteel at Whyalla. A narrow gauge railway built to transport agriculturalrnproducts to the deep-water port of Port Lincoln, 175 km to the south, traverses the project area.rnA number of well-serviced rural townships are located nearby. Current activities include resourcernexpansion drilling, extensive metallurgical test work, community consultation and a PrefeasibilityrnStudy (PFS) that commenced in April 2010.rnThe PFS has encompassed the Central Eyre Iron Project, comprising the three signifi cant ironrnoccurrences (Warramboo, Kopi and Hambidge) and was completed in early 2011. Extensive testrnwork programs and metallurgical modelling confi rmed viable process options for the project,rnusing simple off the shelf processing technology.rnPreconcentration by coarse cobbing yielded promising results, and is the key to reducing notrnonly the capital expenditure but also the operating cost, in particular the power cost, which is thernhighest operating cost component of a magnetite benefi ciation plant. The ore is also amendable tornhigh pressure grinding rolls (HPGR) processing. This offers a potential for further reduction of thernenergy requirements.rnTest work also confi rmed that a high grade blast furnace quality concentrate (～68 per cent Fe)rncan be produced at a relatively coarse grind (P_(80) 106 μm).
机译：Iron Road有限的中央艾尔铁项目（CEIP）区域位于南澳大利亚州的艾尔半岛，覆盖了广泛的古生铁矿，以粗粒磁铁矿轴承形式出现。根据航磁数据估算的累计走时长度至少为95 km。该项目位于Whyalla OneSteel现有铁矿石和炼钢业务以西185 km的谷物种植区。一条窄轨铁路横穿项目区，将农产品运至林肯港深水港，南至175公里，横贯项目区域。附近有许多服务良好的乡村小镇。当前的活动包括资源扩建钻探，广泛的冶金测试工作，社区咨询以及于2010年4月开始的预可行性研究（PFS）。PFS包括Central Eyre Iron Project（中央艾尔铁矿项目），包括三个重要的铁矿事件（Warramboo，Kopi和Hambidge）。于2011年初完成。广泛的测试程序和冶金模型确定了该项目的可行工艺选择，采用了简单的现成的加工技术。rn粗梳法进行预浓缩产生了可喜的结果，是不仅减少资本支出而且降低运营成本的关键成本，尤其是电力成本，这是磁铁矿选矿厂的最高运营成本组成部分。矿石也可用于撕裂高压研磨辊（HPGR）处理。这提供了进一步降低能源需求的潜力。测试工作还确认，可以在相对粗磨的情况下（P_（80）106μm）生产出高品位的高炉优质精矿（铁含量约为68％）。

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  • 来源
    《Iron ore 2011》|2011年|p.581-588|共8页
  • 会议地点 Perth(AU)
  • 作者

    D Connelly; L Ingle;

  • 作者单位

    Mineral Engineering Technical Services Pty Ltd (METS), Level 6, 524 Hay Street, Perth WA 6000. Email: damian.connelly@mets.net.au;

    Iron Road Limited, Level 1, 1139 Hay Street, West Perth WA 6005. Email: lingle@ironroadlimited.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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