Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking

Electric arc furnace (EAF) steel bottom-blowing can effectively improve the temperature and composition uniformity of the molten pool during smelting process. To explore the effect of molten-steel characteristics on bottom-blowing at various stages of smelting, we divided the smelting process of the...
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Autor*in:	Hang Hu [verfasserIn] Lingzhi Yang [verfasserIn] Yufeng Guo [verfasserIn] Feng Chen [verfasserIn] Shuai Wang [verfasserIn] Fuqiang Zheng [verfasserIn] Bo Li [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	electric arc furnace steelmaking bottom-stirring different smelting time molten steel flow numerical simulation

Übergeordnetes Werk:	In: Metals - MDPI AG, 2012, 11(2021), 5, p 799
Übergeordnetes Werk:	volume:11 ; year:2021 ; number:5, p 799

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/met11050799

Katalog-ID:	DOAJ062297295

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520			\|a Electric arc furnace (EAF) steel bottom-blowing can effectively improve the temperature and composition uniformity of the molten pool during smelting process. To explore the effect of molten-steel characteristics on bottom-blowing at various stages of smelting, we divided the smelting process of the EAF into four stages: the melting stage, the early decarburization stage, the intermediate smelting stage, and the ending smelting stage. The numerical simulation software ANSYS Fluent 18.2 was used to simulate the velocity field of molten steel under the condition of bottom-blowing stirring in different stages in EAF steelmaking process. The properties of bottom-blowing and the kinetic conditions of the steel-slag at this interface were investigated. Our results showed that at a bottom-blowing gas flow rate of 100 L/min, the average flow rates of the four stages were v1 = 0.0081 m/s, v2 = 0.0069 m/s, v3 = 0.0063 m/s, and v4 = 0.0053 m/s. The physical model verification confirmed the results, that is, the viscosity of molten steel decreased as the smelting progressed, and the flow velocity of the molten steel caused by the agitation of bottom-blowing also decreased, the effect of bottom-blowing decreased. Based on these results, a theoretical basis was provided for the development of the bottom-blowing process.
650		4	\|a electric arc furnace steelmaking
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callnumber-first	T - Technology
author	Hang Hu
spellingShingle	Hang Hu misc TN1-997 misc electric arc furnace steelmaking misc bottom-stirring misc different smelting time misc molten steel flow misc numerical simulation misc Mining engineering. Metallurgy Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking
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topic_title	TN1-997 Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking electric arc furnace steelmaking bottom-stirring different smelting time molten steel flow numerical simulation
topic	misc TN1-997 misc electric arc furnace steelmaking misc bottom-stirring misc different smelting time misc molten steel flow misc numerical simulation misc Mining engineering. Metallurgy
topic_unstemmed	misc TN1-997 misc electric arc furnace steelmaking misc bottom-stirring misc different smelting time misc molten steel flow misc numerical simulation misc Mining engineering. Metallurgy
topic_browse	misc TN1-997 misc electric arc furnace steelmaking misc bottom-stirring misc different smelting time misc molten steel flow misc numerical simulation misc Mining engineering. Metallurgy
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title	Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking
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title_full	Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking
author_sort	Hang Hu
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author_browse	Hang Hu Lingzhi Yang Yufeng Guo Feng Chen Shuai Wang Fuqiang Zheng Bo Li
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title_sort	numerical simulation of bottom-blowing stirring in different smelting stages of electric arc furnace steelmaking
callnumber	TN1-997
title_auth	Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking
abstract	Electric arc furnace (EAF) steel bottom-blowing can effectively improve the temperature and composition uniformity of the molten pool during smelting process. To explore the effect of molten-steel characteristics on bottom-blowing at various stages of smelting, we divided the smelting process of the EAF into four stages: the melting stage, the early decarburization stage, the intermediate smelting stage, and the ending smelting stage. The numerical simulation software ANSYS Fluent 18.2 was used to simulate the velocity field of molten steel under the condition of bottom-blowing stirring in different stages in EAF steelmaking process. The properties of bottom-blowing and the kinetic conditions of the steel-slag at this interface were investigated. Our results showed that at a bottom-blowing gas flow rate of 100 L/min, the average flow rates of the four stages were v1 = 0.0081 m/s, v2 = 0.0069 m/s, v3 = 0.0063 m/s, and v4 = 0.0053 m/s. The physical model verification confirmed the results, that is, the viscosity of molten steel decreased as the smelting progressed, and the flow velocity of the molten steel caused by the agitation of bottom-blowing also decreased, the effect of bottom-blowing decreased. Based on these results, a theoretical basis was provided for the development of the bottom-blowing process.
abstractGer	Electric arc furnace (EAF) steel bottom-blowing can effectively improve the temperature and composition uniformity of the molten pool during smelting process. To explore the effect of molten-steel characteristics on bottom-blowing at various stages of smelting, we divided the smelting process of the EAF into four stages: the melting stage, the early decarburization stage, the intermediate smelting stage, and the ending smelting stage. The numerical simulation software ANSYS Fluent 18.2 was used to simulate the velocity field of molten steel under the condition of bottom-blowing stirring in different stages in EAF steelmaking process. The properties of bottom-blowing and the kinetic conditions of the steel-slag at this interface were investigated. Our results showed that at a bottom-blowing gas flow rate of 100 L/min, the average flow rates of the four stages were v1 = 0.0081 m/s, v2 = 0.0069 m/s, v3 = 0.0063 m/s, and v4 = 0.0053 m/s. The physical model verification confirmed the results, that is, the viscosity of molten steel decreased as the smelting progressed, and the flow velocity of the molten steel caused by the agitation of bottom-blowing also decreased, the effect of bottom-blowing decreased. Based on these results, a theoretical basis was provided for the development of the bottom-blowing process.
abstract_unstemmed	Electric arc furnace (EAF) steel bottom-blowing can effectively improve the temperature and composition uniformity of the molten pool during smelting process. To explore the effect of molten-steel characteristics on bottom-blowing at various stages of smelting, we divided the smelting process of the EAF into four stages: the melting stage, the early decarburization stage, the intermediate smelting stage, and the ending smelting stage. The numerical simulation software ANSYS Fluent 18.2 was used to simulate the velocity field of molten steel under the condition of bottom-blowing stirring in different stages in EAF steelmaking process. The properties of bottom-blowing and the kinetic conditions of the steel-slag at this interface were investigated. Our results showed that at a bottom-blowing gas flow rate of 100 L/min, the average flow rates of the four stages were v1 = 0.0081 m/s, v2 = 0.0069 m/s, v3 = 0.0063 m/s, and v4 = 0.0053 m/s. The physical model verification confirmed the results, that is, the viscosity of molten steel decreased as the smelting progressed, and the flow velocity of the molten steel caused by the agitation of bottom-blowing also decreased, the effect of bottom-blowing decreased. Based on these results, a theoretical basis was provided for the development of the bottom-blowing process.
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title_short	Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking
url	https://doi.org/10.3390/met11050799 https://doaj.org/article/8f4297f5def9457d966007bbd56163f1 https://www.mdpi.com/2075-4701/11/5/799 https://doaj.org/toc/2075-4701
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author2	Lingzhi Yang Yufeng Guo Feng Chen Shuai Wang Fuqiang Zheng Bo Li
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The physical model verification confirmed the results, that is, the viscosity of molten steel decreased as the smelting progressed, and the flow velocity of the molten steel caused by the agitation of bottom-blowing also decreased, the effect of bottom-blowing decreased. Based on these results, a theoretical basis was provided for the development of the bottom-blowing process.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">electric arc furnace steelmaking</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">bottom-stirring</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">different smelting time</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">molten steel flow</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">numerical simulation</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Mining engineering. 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Numerical Simulation of Bottom-Blowing Stirring in Different Smelting Stages of Electric Arc Furnace Steelmaking

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