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Simulation on the Slag Desulfurization During the LF Refining in a Gas-Blowing Ladle

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Materials Processing Fundamentals 2023 (TMS 2023)

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Abstract

A three-dimensional numerical model coupled the fluid-flow simulation and the reaction kinetics was established to study the evolution of the sulfur content in the molten steel. The VOF, k-ε, and DPM models were employed to simulate the fluid flow of three phases in the ladle furnace, including the steel, the slag, and the air. Reactions between the steel and the slag were considered in the simulation using a series of user defined functions. The steel-slag reactions had a significant effect on the sulfur content in the molten steel, resulting the continuous decrease of the sulfur content. The [S] content reduced from 0.077 wt% into 0.01 wt% in 50 min. The distribution of [S] in the molten steel was uneven, with the lowest near the steel-slag interface and the highest in the middle zone between the argon blowing point and the ladle wall.

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Acknowledgements

The authors are grateful for support from the National Natural Science Foundation of China (Grant No. U1860206, No. 51725402, 51874031, 51874032), the S&T Program of Hebei (Grant No.20311004D), the High Steel Center (HSC) at North China University of Technology and the High Quality Steel Consortium (HQSC) at University of Science and Technology Beijing, China.

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Authors and Affiliations

  1. School of Mechanical and Materials Engineering, North China University of Technology, Beijing, 100144, China

    Jujin Wang & Lifeng Zhang

  2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing, 100083, China

    Yuexin Zhang & Binyu Lyu

Authors
  1. Jujin Wang
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  2. Yuexin Zhang
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  3. Binyu Lyu
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  4. Lifeng Zhang
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Corresponding author

Correspondence to Lifeng Zhang .

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Editors and Affiliations

  1. Oculatus Consulting, Marietta, GA, USA

    Samuel Wagstaff

  2. Gopher Resource, Tampa, FL, USA

    Alexandra Anderson

  3. Oak Ridge National Laboratory, Oak Ridge, TN, USA

    Adrian S. Sabau

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Wang, J., Zhang, Y., Lyu, B., Zhang, L. (2023). Simulation on the Slag Desulfurization During the LF Refining in a Gas-Blowing Ladle. In: Wagstaff, S., Anderson, A., Sabau, A.S. (eds) Materials Processing Fundamentals 2023. TMS 2023. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-22657-1_11

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