LAPSE:2023.20478
Published Article
LAPSE:2023.20478
Numerical Investigation of the Enhanced Stirring Characteristics of a Multi-Lance Top-Blowing Continuous Converting Furnace for Lance Arrangement and Variable-Velocity Blowing
March 20, 2023
Abstract
Oxygen lances are key equipment for copper converters. The effect of the lance arrangement on the mixing of a gas−slag two−phase is discussed using numerical simulation and experimental verification with a water model, and the stirring characteristics enhanced by variable−velocity blowing are explored. The results showed that the single−row lance arrangement (SA) increased the average velocity in the slag phase by 17.93% and reduced the disturbance to the metal phase by 27.78% compared to the double−row lance arrangement (DA). Compared to the constant−velocity blowing system (CSB), the sine−wave blowing system (SWB) and rectangular−wave blowing system (RWB) increased the average velocity in the slag phase by 24.03% and 13.96%, respectively, and reduced the proportion of the low−velocity area by more than 46.2%. The velocity imbalance in the SA local area enhances the mixing of the gas−slag two−phase. The variable−speed blowing improves the mass transfer and mixing effect.
Oxygen lances are key equipment for copper converters. The effect of the lance arrangement on the mixing of a gas−slag two−phase is discussed using numerical simulation and experimental verification with a water model, and the stirring characteristics enhanced by variable−velocity blowing are explored. The results showed that the single−row lance arrangement (SA) increased the average velocity in the slag phase by 17.93% and reduced the disturbance to the metal phase by 27.78% compared to the double−row lance arrangement (DA). Compared to the constant−velocity blowing system (CSB), the sine−wave blowing system (SWB) and rectangular−wave blowing system (RWB) increased the average velocity in the slag phase by 24.03% and 13.96%, respectively, and reduced the proportion of the low−velocity area by more than 46.2%. The velocity imbalance in the SA local area enhances the mixing of the gas−slag two−phase. The variable−speed blowing improves the mass transfer and mixing effect.
Record ID
Keywords
computational fluid dynamics (CFD), continuous copper–smelting process, lance arrangement, top–blowing converter, variable–velocity blowing
Subject
Suggested Citation
Li W, Wang S, Xu J, Hu J, Wang H, Zhai Y, Xiao Q, Deng G, Li D. Numerical Investigation of the Enhanced Stirring Characteristics of a Multi-Lance Top-Blowing Continuous Converting Furnace for Lance Arrangement and Variable-Velocity Blowing. (2023). LAPSE:2023.20478
Author Affiliations
Li W: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Wang S: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Xu J: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Hu J: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Wang H: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Zhai Y: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Xiao Q: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati [ORCID]
Deng G: Southwest Copper Branch of Yunnan Copper Co., Ltd., Kunming 650102, China
Li D: Southwest Copper Branch of Yunnan Copper Co., Ltd., Kunming 650102, China
Wang S: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Xu J: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Hu J: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Wang H: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Zhai Y: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati
Xiao Q: State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China; Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Educati [ORCID]
Deng G: Southwest Copper Branch of Yunnan Copper Co., Ltd., Kunming 650102, China
Li D: Southwest Copper Branch of Yunnan Copper Co., Ltd., Kunming 650102, China
Journal Name
Energies
Volume
16
Issue
5
First Page
2412
Year
2023
Publication Date
2023-03-02
ISSN
1996-1073
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PII: en16052412, Publication Type: Journal Article
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LAPSE:2023.20478
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https://doi.org/10.3390/en16052412
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