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Particle Size Analysis – Optimising Returns in Iron Ore

机译:粒度分析–优化铁矿石收益

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Reliable particle size analysis in minerals processing plants is a critical factor to the economicrnreturn of a plant. As recovery of valuable minerals is compromised for particles outside the optimalrnsize range, effective and reliable particle size analysis is more crucial than ever, particularly in therncurrent upswing of the global commodities market. Ineffi cient particle size analysis can lead tornexcessive over-grinding, thereby signifi cantly increasing energy consumption and reagent costs,rnwhilst negatively affecting process operation, thickening capacity, water recovery and tailingsrndisposal.rnAustralia's fi rst installation of a particle size analyser in Iron Ore has been monitored withrngreat interest by the industry. Previously, manual size sampling at Rio Tinto's Paraburdoo fi nesrnprocessing plant involved off-site sample analysis, with a turnaround measured in days. ThernOutotec PSI~? 500 particle size indicator, commissioned in July 2009, takes approximately threernminutes per line at site.rnThe paper will include details on the following:rn1. plant description,rn2. sampling design,rn3. PSI~? 500 analyser functionality description, andrn4. key learnings from site.
机译:矿物加工工厂中可靠的粒度分析是工厂经济回报的关键因素。由于无法对最佳尺寸范围之外的颗粒进行有价值的矿物的回收,因此有效和可靠的粒径分析比以往任何时候都更加重要,特别是在当前全球商品市场的增长中。效率低下的粒度分析会导致过度磨碎,从而显着增加能耗和试剂成本,对工艺操作,浓缩能力,水回收和尾渣处理产生负面影响。澳大利亚已经在铁矿石中首次安装粒度分析仪受到业界的极大关注。以前,在力拓(Rio Tinto)的Paraburdoo精细加工工厂中进行手动尺寸取样涉及异地样品分析,周转时间以天为单位。 ThernOutotec PSI〜? 500粒度指示器于2009年7月投入使用,每条生产线在现场大约需要3分钟。rn本文将包括以下内容:rn1。工厂说明,rn2。抽样设计,rn3。 PSI〜? 500分析仪功能说明,以及rn4。从站点获得的重要经验。

著录项

  • 来源
    《Iron ore 2011》|2011年|p.323-329|共7页
  • 会议地点 Perth(AU)
  • 作者

    B Stump; B McPherson;

  • 作者单位

    Plant Technical, Rio Tinto – Greater Paraburdoo, PO Box 114, Paraburdoo WA 6754. Email: brady.stump@riotinto.com;

    Automation, Outotec Pty Ltd, Level 2, 1 Walker Avenue, West Perth WA 6005. Email: brian.mcpherson@outotec.com;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 铁矿石;
  • 关键词

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