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首页> 外文会议>Iron ore 2011 >Real-Time Online Analysis of Iron Ore, Validation of Material Stockpiles and Roll Out for Overall Elemental Balance as Observed in the Khumani Iron Ore Mine, South Africa
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Real-Time Online Analysis of Iron Ore, Validation of Material Stockpiles and Roll Out for Overall Elemental Balance as Observed in the Khumani Iron Ore Mine, South Africa

机译：南非Khumani铁矿的实时在线分析铁矿石，验证原料库存和推出元素总体平衡的方法

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摘要

With the increasing demand for quality-specifi c ores, coupled to the reality of even more complexrnminable iron ore reserves, there is a growing need for real-time online material analysis of plantrnfeed and product. For a full system mass balance, the combination of conveyor weight scales, fl owandrndensity transmitters are required. This alone does not guarantee product grade. For optimalrnprocess control and material blending, real-time online elemental scans in combination withrnthe mass weighting is becoming more than a 'nice to have'. These elemental scans located at keyrnpositions, enable the mining and plant operators to make informed decisions timeously, thereforernensuring product outcomes and optimising operations where material grade and the controlrnthereof are important. Typically, these units follow the mining and primary crushing circuit as wellrnas on the product conveyors, low-grade conveyors and tailings lines. Deployed after the primaryrncrushing circuit, an analyser acts twofold:rn1. guaranteeing mining production, andrn2. processing facility feed blends.rnThe analysers on the product conveyors guarantee saleable product. The analysers on the lowgradernconveyor and tailings line complete the elemental balance and identify the potential of thernlow-grade and tailings for future processing. The system losses (accumulation) are calculated torndetermine the amount of material 'lost' during the processing stage which does not report to any ofrnthe aforementioned and can be used as a measure of the effi ciency of the plant. A further advantagernof the real-time online analysis of material is that immediate intervention can be taken in the eventrnthat the product is not of saleable product grade requirements. In the Khumani Iron Ore mine,rnNorthern Cape, South Africa, run-of-mine (ROM), product and control analysers were included.rnRun-of-mine and product stockpiles are certifi ed, low-grade material is not currently directlyrnmeasured, but calculated from the internal control loops. Iron units are reconciled betweenrnproduct and feed material.
机译：随着对特定质量矿石的需求不断增加，加上铁矿石储量更加复杂的现实，对植物饲料和产品的实时在线材料分析的需求日益增长。为了实现完整的系统质量平衡，需要将传送带重量秤和流量密度变送器组合在一起。仅此一项并不能保证产品等级。为了实现最佳的过程控制和材料混合，实时在线元素扫描与质量加权相结合已不再是一件“不可或缺的事情”。这些位于关键位置的基本扫描，使采矿和工厂运营商能够及时做出明智的决策，从而在产品等级和对其控制很重要的情况下，保证了产品效果并优化了操作。通常，这些单元遵循采矿和初级破碎回路，作为产品输送机，低品位输送机和尾矿线上的井。在初级破碎电路之后部署的分析仪具有双重作用：rn1。保证采矿生产，并且2。加工设施的饲料混合物。rn产品传送带上的分析仪保证产品可销售。低品位输送机和尾矿线上的分析仪完成了元素平衡，并确定了低品位和尾矿在将来加工中的潜力。计算系统损失（累积）是为了确定处理阶段的材料“损失”量，该量不会报告给上述任何方面，并且可以用作衡量工厂效率的标准。对材料进行实时在线分析的另一个优势是，如果产品不符合可销售产品等级要求，则可以立即采取干预措施。在南非北开普省的Khumani铁矿石矿中，包括了运行分析仪（ROM），产品和控制分析仪。rn已对运行原型和产品库存进行了认证，目前不直接测量低品位材料，但是根据内部控制回路计算得出的。铁单元在产品和进料之间调节。

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  • 来源
    《Iron ore 2011》|2011年|p.297-305|共9页
  • 会议地点 Perth(AU)
  • 作者

    D Matthews; T du Toit;

  • 作者单位

    DRA mineral projects, No 3 Inyanga Close, Sunninghill 2157, South Africa. Email: dmatthews@drasa.co.za;

    Private Bag X503, Kathu, South Africa. Email: thomasdt@assmang.co.za;

  • 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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