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Effect of Side-blowing Arrangement on Flow Field and Vanadium Extraction Rate in Converter Steelmaking Process

机译：转炉炼钢中侧吹布置对流场和钒萃取率的影响

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摘要

To improve the vanadium extraction rate, the iron ore powder was used to be injected into the molten bath by side-blowing. Both simulation numerical and water experiment model for analyzing the behaviors of molten bath flow field had been developed to investigate the mixing time, velocity profile and dead-zone volume of molten steel under various injection arrangements and gas flow rates. The result showed that the mixing time would reduce, with increasing the distance between side-blowing nozzle and molten bathe surface. Moreover, although the kinetic energy would be removed by the mutual influenced between bottom-blow bubbles and the side-blowing jet at a certain content, the stirring effect of molten bath is still improved by the side-blowing jet. Based on the result of simulation, an injection arrangement was used in the 150 t vanadium extraction converter. Based on the results, the vanadium content of semi-steel and T. Fe in the slag with side-blowing arrangement is 0.033% and 34.1%, respectively. And the vanadium content of semi-steel and T. Fe in the slag with side-blowing arrangement is 0.044% and 32.1%, respectively.
机译：为了提高钒的提取率，使用铁矿石粉通过侧吹向熔池中注入。建立了用于分析熔池流场特性的模拟数值模型和水实验模型，以研究在各种注入方式和气体流量下钢水的混合时间，速度曲线和死区体积。结果表明，随着侧吹喷嘴与熔池表面距离的增加，混合时间将减少。而且，尽管通过一定量的底吹气泡和侧吹射流之间的相互影响可以除去动能，但是通过侧吹射流仍然可以改善熔池的搅拌效果。根据模拟结果，在150 t钒提取转炉中使用了注射装置。根据结果​​，侧吹式炉渣中半钢和铁中钒的含量分别为0.033％和34.1％。侧吹炉渣中半钢和T.Fe的钒含量分别为0.044％和32.1％。

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  • 来源
    《ISIJ international》 |2018年第5期|852-859|共8页
  • 作者

    Fuhai LIU; Dongbai SUN; Rong ZHU; Kai DONG; Ruiguo BAI;

  • 作者单位

    National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083 China,Beijing Key Laboratory of Research Center of Special Melting and Preparation of High-end Metal Materials, University of Science and Technology Beijing, Beijing, 100083 China;

    National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083 China;

    Beijing Key Laboratory of Research Center of Special Melting and Preparation of High-end Metal Materials, University of Science and Technology Beijing, Beijing, 100083 China;

    Beijing Key Laboratory of Research Center of Special Melting and Preparation of High-end Metal Materials, University of Science and Technology Beijing, Beijing, 100083 China;

    Chengde Iron and Steel Company, Chengde, Hebei, 067002 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

    side-blowing; powder injection; vanadium extraction; simulation;

    机译：侧吹粉末注射钒提取模拟;

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