Author： Morsi Y. S. Yang W. El-Katatny I.
Publisher： Maney Publishing
ISSN： 1743-2812
Source： Ironmaking & Steelmaking, Vol.35, Iss.1, 2008-01, pp. : 69-74
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Abstract
Flow field characteristics within an elliptical liquid bath, agitated by a top submerged gas injection lance system, are investigated experimentally using laser diagnostics techniques and high speed photography. The model is designed to simulate the flow behaviour of a conceptual AusIron furnace design which consists of an elliptical perspex vessel and two vertically supported lances. The results indicate that higher flow rate created a strong recirculation zones at the bottom of the bath and hence better mixing. The lower level of submergence caused a rapid spread of the gas jet at the top section of the bath and the higher submergence levels improved the agitation and flowfields in the bath. In general, the findings from the present study enabled us to gain more knowledge of the overall physical phenomena of such a complex system, which in turn assist furnace designers in determining the optimum operating conditions for complex industrial systems.
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