Study of Penetration Depth Characteristics of Coherent Jet in EAF Steelmaking

Coherent jet is widely adopted in electric arc furnace (EAF) steelmaking to promote molten-bath fluid flow, accelerate the metallurgical reaction, and improve the quality of molten steel.A water model experiment was conducted and a computational fluid dynamics (CFD) model was established to validate...

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Published in工程科学学报 Vol. 40; no. S1; pp. 130 - 137
Main Authors LIU Fu-hai, WEI Guang-sheng, ZHU Rong, TANG Tian-ping, CHANG Jun, SU Rong-fang, LIU Run-zao
Format Journal Article
LanguageChinese
Published Science Press 01.12.2018
Subjects
coherent jet
eaf steelmaking
numerical simulation
penetration depth
water model experiment
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Summary:Coherent jet is widely adopted in electric arc furnace (EAF) steelmaking to promote molten-bath fluid flow, accelerate the metallurgical reaction, and improve the quality of molten steel.A water model experiment was conducted and a computational fluid dynamics (CFD) model was established to validate the theoretical model of penetration depth, which was built and modified by mathematical analysis.Resultsshow that the impact law of the coherent jet is similar to that of conventional supersonic jet.With the same jet condition, the penetration depth decreases as the lance height increases.At the same lance height, the penetration depth of the coherent jet is greater than that of the conventional supersonic jet as indicated by the higher k value and jet gas density of the former.
ISSN:2095-9389
DOI:10.13374/j.issn2095-9389.2018.s1.019