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Prediction and Disarming of Drain Sink Formation during Unsteady-state Bottom Teeming
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2009 (English)In: ISIJ International, ISSN 0915-1559, Vol. 49, no 1, 1-9 p.Article in journal (Refereed) Published
Abstract [en]

The behavior of an unsteady-state drain sink as function of outlet diameter, outlet length, supernatant phase viscosity, supernatant phase density and supernatant phase layer thickness was studied using physical modeling. Two new hydrodynamic models for the prediction of the drain sink formation height were derived and compared to models found in literature. Both could accurately predict the drain sink formation height in their respective domain as function of all variables mentioned above, except supernatant phase viscosity since its influence on drain sink formation height was negligible in the experimental systems. Finally, the influence of the vessel bottom shape on the increased yield of a steel plant teeming operation is discussed.

Place, publisher, year, edition, pages
2009. Vol. 49, no 1, 1-9 p.
Keyword [en]
drain sink, non-vortexing funnel, outlet size, outlet length, slag, density, slag viscosity and bottom shape, metallurgical vessels, vortex formation, surface, model, flow
URN: urn:nbn:se:kth:diva-18147ISI: 000263007700001ScopusID: 2-s2.0-64049103644OAI: diva2:336193
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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