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Modeling of slag eye formation over a metal bath due to gas bubbling

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Abstract

When gas is bubbled through a molten metal, overlying slag is pushed to the side forming an open “eye” of exposed metal. Eye sizes were measured in room-temperature modeling over a wide range of conditions including the fluids to simulate slag and metal, gas flow rates, and depths of both fluids. A mechanistic model for eye size was developed from fundamental fluid flow considerations. The model expresses a dimensionless eye area in terms of a density ratio of the fluids and a Froude number. The model is consistent with the present experimental results and those of others in different liquid systems. Finally, previously published correlations for eye size have been critically evaluated.

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Authors and Affiliations

  1. the Steel Research Centre, McMaster University, Hamilton, ON, Canada

    Krishnakumar Krishnapisharody (Graduate Student) & Gordon A. Irons (Dofasco Professor of Ferrous Metallurgy and Director)

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  1. Krishnakumar Krishnapisharody
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  2. Gordon A. Irons
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Krishnapisharody, K., Irons, G.A. Modeling of slag eye formation over a metal bath due to gas bubbling. Metall Mater Trans B 37, 763–772 (2006). https://doi.org/10.1007/s11663-006-0058-z

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  • DOI: https://doi.org/10.1007/s11663-006-0058-z

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