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首页> 外文期刊>ISIJ international >Influence of Atmosphere and Basicity on Softening and Melting Behaviors of the CaO-FeO-SiO_2-Al_2O_3-MgO System
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Influence of Atmosphere and Basicity on Softening and Melting Behaviors of the CaO-FeO-SiO_2-Al_2O_3-MgO System

机译：大气影响对CAO-FEO-SIO_2-AL_2O_3-MGO系统软化和熔化行为的影响

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摘要

In this study, we analyze the softening and melting behaviors of the CaO-FeO-SiO_2-Al_2O_3-MgO system for improving gas permeability in a blast furnace. The temperature of the oxide is increased to 1723 or 1773 K in a CO/CO_2 mixture; the softening and melting temperatures and the temperature of penetration into the coke bed are measured. Because the CO/CO_2 ratio in the atmosphere influences the stable state of iron or iron oxide, the softening and melting behaviors are investigated for numerous CO/CO_2 ratios. We observe that the reduction of the sample progresses in an atmosphere with a high CO/CO_2 ratio, and thus, the softening temperature increases. Because the composition of the oxidation phase influences the solidus and liquidus temperatures, the influence of basicity on the phenomena is also investigated, and a method of reducing the difference between the softening and dripping temperatures is discussed.
机译：在这项研究中，我们分析了CaO-Feo-SiO_2-AL_2O_3-MGO系统的软化和熔化行为，用于改善高炉中的液态渗透性。氧化物的温度在CO / CO_2混合物中升至1723或1773k;测量软化和熔化温度和渗透到焦床中的温度。因为大气中的CO / CO_2比率影响铁或氧化铁的稳定状态，所以研究了许多CO / CO_2比的软化和熔化行为。我们观察到，样品的减少在具有高CO / CO_2比的气氛中进行，因此，软化温度增加。因为氧化阶段的组成影响了固体和液体温度，所以还研究了碱度对该现象的影响，并且讨论了减少软化和滴加温度之间的差异的方法。

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  • 来源
    《ISIJ international》 |2020年第7期|1380-1388|共9页
  • 作者

    Shigeru UEDA; Takahiro MIKI; Sun-Joong KIM; Xu GAO; Hiroshi NOGAMI; Shin-ya KITAMURA;

  • 作者单位

    Institute of Multidisciplinary Research Advanced Material Tohoku University 1-1 Katahira 2 Aoba-ku Sendai 980-8577 Japan;

    School of Engineering Tohoku University 6-6 Aoba Aramaki Aoba-ku Sendai 980-8579 Japan;

    Dept. of Materials Science and Engineering Chosun University 309 Pilmun-daero Dong-gu Gwangju 61452 Korea;

    Institute of Multidisciplinary Research Advanced Material Tohoku University 1-1 Katahira 2 Aoba-ku Sendai 980-8577 Japan;

    Institute of Multidisciplinary Research Advanced Material Tohoku University 1-1 Katahira 2 Aoba-ku Sendai 980-8577 Japan;

    Institute of Multidisciplinary Research Advanced Material Tohoku University 1-1 Katahira 2 Aoba-ku Sendai 980-8577 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; coke bed; iron ore; softening; melting; gas permeability;

    机译：高炉;焦床;铁矿;软化;融化;气体渗透性;

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