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Volume 25 Issue 2
Feb.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(2): 153-163
Yi-hong Li, Yan-ping Bao, Rui Wang, Li-feng Ma, and Jian-sheng Liu, Modeling study on the flow patterns of gas-liquid flow for fast decarburization during the RH process, Int. J. Miner. Metall. Mater., 25(2018), No. 2, pp. 153-163. https://doi.org/10.1007/s12613-018-1558-y
Cite this article as:
Yi-hong Li, Yan-ping Bao, Rui Wang, Li-feng Ma, and Jian-sheng Liu, Modeling study on the flow patterns of gas-liquid flow for fast decarburization during the RH process, Int. J. Miner. Metall. Mater., 25(2018), No. 2, pp. 153-163. https://doi.org/10.1007/s12613-018-1558-y
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研究论文

Modeling study on the flow patterns of gas-liquid flow for fast decarburization during the RH process

  • Collaborative Innovation Centre of Taiyuan Heavy Machinery Equipment and School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China

  • State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China

  • School of Materials Science and Engineering, North University of China, Taiyuan 030024, China

  • 通讯作者:

    Yi-hong Li    E-mail: mm.liyh@163.com

  • A water model and a high-speed video camera were utilized in the 300-t RH equipment to study the effect of steel flow patterns in a vacuum chamber on fast decarburization and a superior flow-pattern map was obtained during the practical RH process. There are three flow patterns with different bubbling characteristics and steel surface states in the vacuum chamber:boiling pattern (BP), transition pattern (TP), and wave pattern (WP). The effect of the liquid-steel level and the residence time of the steel in the chamber on flow patterns and decarburization reaction were investigated, respectively. The liquid-steel level significantly affected the flow-pattern transition from BP to WP, and the residence time and reaction area were crucial to evaluate the whole decarburization process rather than the circulation flow rate and mixing time. A superior flow-pattern map during the practical RH process showed that the steel flow pattern changed from BP to TP quickly, and then remained as TP until the end of decarburization.
    • Research Article

    Modeling study on the flow patterns of gas-liquid flow for fast decarburization during the RH process

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      Abstract
    • A water model and a high-speed video camera were utilized in the 300-t RH equipment to study the effect of steel flow patterns in a vacuum chamber on fast decarburization and a superior flow-pattern map was obtained during the practical RH process. There are three flow patterns with different bubbling characteristics and steel surface states in the vacuum chamber:boiling pattern (BP), transition pattern (TP), and wave pattern (WP). The effect of the liquid-steel level and the residence time of the steel in the chamber on flow patterns and decarburization reaction were investigated, respectively. The liquid-steel level significantly affected the flow-pattern transition from BP to WP, and the residence time and reaction area were crucial to evaluate the whole decarburization process rather than the circulation flow rate and mixing time. A superior flow-pattern map during the practical RH process showed that the steel flow pattern changed from BP to TP quickly, and then remained as TP until the end of decarburization.
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