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Liquid Mixing in Thick-Slag-Covered Metallurgical Baths—Blending of Bath

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Abstract

Liquid mixing in bottom-blown, gas-stirred reactors has a significant impact on process efficiency and product quality. Cold physical models were used to simulate liquid bath mixing behavior covered with a thick slag layer. The dependence of blending time on specific energy input rate, slag height, and physical properties of metal and slag was studied. A new parameter, called the “effective bath height,” is defined as a function of the slag and metal thicknesses and their relative densities to develop a unified correlation for blending time of slag-covered baths and baths without slags. Furthermore, energy dissipation associated with an increase in interfacial area was evaluated.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Toronto, Room 140, 184 College Street, Toronto, ON, Canada, M5S 3E4

    Leili Tafaghodi Khajavi (PhD Student) & Mansoor Barati (Assistant Professor)

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  1. Leili Tafaghodi Khajavi
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  2. Mansoor Barati
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Correspondence to Leili Tafaghodi Khajavi.

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Manuscript submitted June 26, 2009.

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Tafaghodi Khajavi, L., Barati, M. Liquid Mixing in Thick-Slag-Covered Metallurgical Baths—Blending of Bath. Metall Mater Trans B 41, 86–93 (2010). https://doi.org/10.1007/s11663-009-9324-1

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  • DOI: https://doi.org/10.1007/s11663-009-9324-1

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