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首页> 外文期刊>ISIJ international >A Comprehensive Static Model of an Iron Bath Smelting Reduction Process with Thick Slag for Alumina-Rich Iron Ore
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A Comprehensive Static Model of an Iron Bath Smelting Reduction Process with Thick Slag for Alumina-Rich Iron Ore

机译：氧化铝含量高的铁矿石厚渣渣熔炼过程的综合静态模型

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摘要

In order to make comprehensive utilization of alumina-rich iron ore, a two-step three-vessel smelting reduction process is proposed, including the Rotary Hearth Furnace (RHF) for the pre-reduction of alumina-rich iron oxide pellet, the Smelting Reduction Vessel (SRV) with a thick slag bath for the final reduction and melting of pellet, and the Gas Reforming Furnace (GRF) for reforming the exhaust gas from SRV. A three-level lances arrangement is designed to improve the energy utilization and production condition of the SRV. An overall process model is established for the whole process to calculate the mass and heat consumptions of all sections of the process, and to investigate the effect of operation conditions on the process performance. With 80% heat transfer efficiency of post combustion, the recommended post combustion ratio (PCR) of the SRV gas is 55% and the pellet metallization rate (PMR) is 80%. A zoned model of the SRV is developed to calculate the mass and heat balances of each reaction zones and especially to optimize the operation conditions. The recommended PCRs in the upper slag and lower slag are 15% and 0% respectively. The coal-only injection method is recommended in the lower slag.
机译：为了充分利用富铝铁矿石，提出了一种分两步三炉的冶炼还原工艺，包括旋转炉床（RHF），用于富铝氧化铁球团的预还原，冶炼还原。带有厚渣炉的容器（SRV）用于颗粒的最终还原和熔化，气体重整炉（GRF）用于重整SRV的废气。设计了三级喷枪装置以提高SRV的能源利用率和生产条件。为整个过程建立一个总体过程模型，以计算过程所有部分的质量和热量消耗，并研究操作条件对过程性能的影响。后燃烧的热传递效率为80％，SRV气体的建议后燃烧比率（PCR）为55％，颗粒金属化率（PMR）为80％。开发了SRV的分区模型，以计算每个反应区的质量和热量平衡，尤其是优化操作条件。推荐的上渣和下渣PCR分别为15％和0％。建议在较低的炉渣中采用纯煤喷射法。

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  • 来源
    《ISIJ international》 |2015年第10期|2125-2134|共10页
  • 作者

    Yibo HE; Biao TANG; Qiang LI; Zongshu ZOU;

  • 作者单位

    Northeastern University, School of Materials and Metallurgy, Shenyang, Liaoning, 110819 China;

    Northeastern University, School of Materials and Metallurgy, Shenyang, Liaoning, 110819 China;

    Northeastern University, School of Materials and Metallurgy, Shenyang, Liaoning, 110819 China;

    Northeastern University, School of Materials and Metallurgy, Shenyang, Liaoning, 110819 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    alumina-rich iron ore; iron bath smelting reduction; thick slag bath; process model; zoned model;

    机译：富铝铁矿石铁浴熔炼还原;浓渣池;过程模型;分区模型;

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