Influence of the Carrier Gas Species on CaO-Gas Mixed Injection in the EAF Steelmaking Process

Abstract

In the process of electric arc furnace (EAF) steelmaking, usually the lime powder is sprayed into the molten pool with air as carrier gas to reduce costs. However, because of the nitrogen content requirements in the steel, oxygen or oxygen to mix carbon dioxide was substituted as the carrier gas for the lime powder injection. Lime injection with a burner mode has been reported to promote 100 pct lime injection in the EAF and faster dissolution of lime, but few studies have been made on the effect of the carrier gas on lime powder injection. In this study, four different kinds of carrier gas were used to investigate the influence of carrier gas on lime powder injection in EAF steelmaking. In this study, a CFD model based on the discrete particle model and eddy-dissipation concept model was carried out to investigate the influence of carrier gas species on the CaO-gas mixed injection in EAF steelmaking. The interaction between carrier gas and particles was analyzed, and the influences of carrier gas on the shrouding CH4 were also analyzed. Results show that the decrease of CO2 content in the main carrier gas provides better efficiency of the shrouding combustion and more uniform particle distribution.

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References

  1. 1.

    M. Kishida, Y. Nishio, H. Maeda and N. Kimurta: Tetsu-to-Hagané, 1966, vol. 52, pp.1481-1483.

    Article  Google Scholar 

  2. 2.

    H. Nashiwa, S. Yamaguchi, M. Sato, K. Ieda, M. Ishikawa and Y. Ohkita: Tetsu-to-Hagané, 1982, vol. 68, S203.

    Google Scholar 

  3. 3.

    K. Taoka, T. Imai, M. Kuga, R. Tachibana, M. Ohnishi and J. Nagai: Kawasaki Steel Giho, 1983, vol. 15, pp.120.

    Google Scholar 

  4. 4.

    Liu Y, Long C J, Zhan D P, Zhang H S and Jiang Z H: Steelmaking. 2009, vol. 03, pp.1-4.

    Google Scholar 

  5. 5.

    L. R. Farias,G. A. Irons: Metallurgical Transactions B, 1985, vol. 16, pp. 211-225.

    CAS  Article  Google Scholar 

  6. 6.

    L. Wolfe, J.P. Massin, T. Hunturk, and W. Ripamonti: SCANMET, 2008, 3: 3rd.

  7. 7.

    T. Okuno, Md. A. Uddin, Y. Kato, S.B. Lee and Y.H. Kim: ISIJ International, 2017, vol. 57, pp. 1902-1910.

    CAS  Article  Google Scholar 

  8. 8.

    Miyata M, Higuchi Y: ISIJ International, 2017, vol. 57, pp. 1742-1750.

    CAS  Article  Google Scholar 

  9. 9.

    Yuu S: ASME-FED, 1991, 121:3.

    Google Scholar 

  10. 10.

    Ohguchi S, Robertson D. G. C: Ironmaking and Steelmaking, 1984, vol. 11, pp. 262-273.

    CAS  Google Scholar 

  11. 11.

    KIMURA E: Transactions of the Iron & Steel Institute of Japan, 1983, vol. 23, pp. 522-529.

    CAS  Article  Google Scholar 

  12. 12.

    Numata M, Higuchi Y: ISIJ international, 2012, vol. 52, pp. 2019-2025.

    CAS  Article  Google Scholar 

  13. 13.

    R. Shiba, Md. A. Uddin, Y. Kato and S. Kitamura: ISIJ International, 2014, vol. 54, pp. 2754-2760.

    CAS  Article  Google Scholar 

  14. 14.

    S. Horiuchi, Md. A. Uddin, Y. Kato, Y. Takahashi, and Y. Uchida: ISIJ International, 2014, vol. 54, pp. 82-86.

    CAS  Article  Google Scholar 

  15. 15.

    Wei G S, Zhu R, Cheng T, Dong K, Yang L Z, Tang T P, Wu X T: ISIJ International, 2018, vol. 58, pp. 842-851.

    CAS  Article  Google Scholar 

  16. 16.

    Magnussen B F, Hjertager B H: Combustion & Flame., 1977, vol. 16, pp. 719-729.

    Article  Google Scholar 

  17. 17.

    A. Mardani and S. Tabejama: Int J Hydrogen Energy., 2010, vol. 35, pp. 11324-11331.

    CAS  Article  Google Scholar 

  18. 18.

    Alam M, Naser J, Brooks Gand Fontana A: Metallurgical and Materials Transactions B, 2010, vol. 41, pp.1354-1367.

    Article  Google Scholar 

  19. 19.

    Gidaspow D: Continuum & Kinetic Theory Description, 1994, vol.95, pp.1-29.

    Google Scholar 

  20. 20.

    C.Y. Wen, Y.H. Yu: Chem. Eng. Prog. Symp. Ser., 1966, vol. 62, pp.100-111.

    CAS  Google Scholar 

  21. 21.

    S. Ergun: Chem. Eng. Prog., 1952, vol. 48, pp. 89-94.

    CAS  Google Scholar 

  22. 22.

    B. Lu, W. Wang, J. Li: Chem. Eng. Sci., 2011, vol. 66, pp.4624-4635.

    CAS  Article  Google Scholar 

  23. 23.

    Papamoschou D, Roshko A: J. Fluid Mech., 1988, vol. 197, pp. 453-477.

    Article  Google Scholar 

  24. 24.

    Hirt C W, Nichols B D: Journal of computational physics, 1981, vol. 39, pp. 201-225.

    Article  Google Scholar 

  25. 25.

    Mardani A, Tabejamaat S, Ghamari M: Combustion Theory and Modelling, 2010, vol.14, pp. 747-774.

    CAS  Article  Google Scholar 

  26. 26.

    Christo F C, Dally B B: Combustion and flame, 2005, vol. 142, pp. 117-129.

    CAS  Article  Google Scholar 

  27. 27.

    Launder B E, Spalding D B: Lectures in Mathematical Models of Turbulence. Academic Press, Cambridge, 1972.

    Google Scholar 

  28. 28.

    Wei G S, Zhu R, Wu X T, Yang L Z, Dong K, Cheng T and Tang T P: Metallurgical & Materials Transactions B, 2018, vol. 49, pp. 1405-1420.

    Article  Google Scholar 

  29. 29.

    Glarborg P, Bentzen L L B: Energy & Fuels, 2007, vol. 22, pp. 291-296.

    Article  Google Scholar 

  30. 30.

    Zhang J, Mi J, Li P, Wang F and Dally BB: Energy & Fuels, 2015, vol. 29, pp. 4576-4585.

    CAS  Article  Google Scholar 

  31. 31.

    Zhao R, Liu H, Zhong X J, Wang Z J, Hu H and Qiu J R: Fuel Processing Technology, 2011, vol. 92, pp. 939-945.

    CAS  Article  Google Scholar 

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Acknowledgments

The authors appreciate the support from the National Natural Science of China (Nos. 51604022 and 51734003).

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Correspondence to Rong Zhu or Guangsheng Wei.

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Manuscript submitted December 15, 2018.

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Wu, X., Zhu, R., Wei, G. et al. Influence of the Carrier Gas Species on CaO-Gas Mixed Injection in the EAF Steelmaking Process. Metall Mater Trans B 50, 2389–2402 (2019). https://doi.org/10.1007/s11663-019-01629-6

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