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首页> 外文期刊>ISIJ international >Effect of Nitrogen-less Reducing Atmosphere on Permeability of Cohesive Layer in Blast Furnace
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Effect of Nitrogen-less Reducing Atmosphere on Permeability of Cohesive Layer in Blast Furnace

机译：少量减少气氛对高炉粘性层渗透性的影响

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摘要

Recently, demands for reduction of CO_2 gas emission in iron making process are increasing. For further reduction of CO_2 gas emission, a method of capturing carbon dioxide from blast furnace exhaust gas has been studied. The oxygen blast furnace using pure oxygen for blast does not contain nitrogen in the exhaust gas and that is more advantageous than conventional blast furnace in the point of view of CO_2 separation energy. Although the oxygen blast furnace has been studied with the experimental furnace, the experimental furnace was not sufficiently investigated on the properties of cohesive layer because of the small load of burden materials. Therefore, in this study, the properties of cohesive layer of the oxygen blast furnace were studied. The properties of the cohesive layer were evaluated under blast furnace conditions and nitrogen-less conditions in a load-softening test. As a result, the properties of cohesive layer were remarkably improved in nitrogen-less conditions. As a result of discussion, improvement of the properties of cohesive layer was quantitatively explained due to suppression of contraction of the sintered ore and the decrease of slag liquid because the nitrogen-less atmosphere promoted reduction reaction.
机译：最近，对铁工过程中CO_2气体发射的需求增加正在增加。为了进一步减少CO_2气体排放，研究了从高炉废气中捕获二氧化碳的方法。使用纯氧用于喷射的氧气高炉不含废气中的氮，并且在CO_2分离能量的观点来看，该氧气在废气中含有氮气。虽然已经用实验炉研究了氧气高炉，但由于负荷材料的负荷较少，实验炉在粘性层的性质上没有充分研究。因此，在本研究中，研究了氧气高炉的粘性层的性质。在高炉条件下评价粘性层的性质，并在负载软化试验中进行氮气缩小条件。结果，在脱脂条件下显着提高了内聚层的性质。由于讨论的结果，由于抑制烧结矿石的收缩和炉渣液的减少，因此定量地解释了粘性层的性质的改进，因为氮气氛促进了还原反应。

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  • 来源
    《ISIJ international》 |2020年第7期|1395-1400|共6页
  • 作者

    Yuki KAWASHIRI; Taihei NOUCHI; idetoshi MATSUNO;

  • 作者单位

    Steel Research Laboratory JFE Steel Corporation 1 Kawasaki-cho Chuo-ku Chiba 260-0835 Japan;

    Steel Research Laboratory JFE Steel Corporation 1 Kawasaki-cho Chuo-ku Chiba 260-0835 Japan;

    Steel Research Laboratory JFE Steel Corporation 1 Kawasaki-cho Chuo-ku Chiba 260-0835 Japan;

  • 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

    blast furnace; CO_2 emission; cohesive layer; cohesive zone; oxygen blast furnace;

    机译：高炉;CO_2排放;粘性层;凝聚区;氧气高炉;

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