Research on the Influence of Furnace Structure on Copper Cooling Stave Life

In this paper, a blast furnace gas flow distribution model with variable furnace structure was founded based on CFD (computational fluid dynamics) theory, and the gas velocity distribution near the surface of the copper staves in different areas of the BF is calculated under different conditions of...

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Main Authors: Li Feng-guang, Zhang Jian-liang
Format: Article
Language:English
Published: De Gruyter 2019-02-01
Series:High Temperature Materials and Processes
Subjects:
Online Access:https://doi.org/10.1515/htmp-2017-0040
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author Li Feng-guang
Zhang Jian-liang
author_facet Li Feng-guang
Zhang Jian-liang
author_sort Li Feng-guang
collection DOAJ
description In this paper, a blast furnace gas flow distribution model with variable furnace structure was founded based on CFD (computational fluid dynamics) theory, and the gas velocity distribution near the surface of the copper staves in different areas of the BF is calculated under different conditions of variational structure parameters like Bosh angle, shaft angle, and the newly proposed “equivalent Bosh angle.” Based on the calculation, the influence rule of the BF structure on the service life of copper stave and the corresponding operation measures were obtained. The result shows that the increase of the Bosh angle and the decrease of the shaft angle will incur increasing of the gas flow velocity near the surface of the copper staves, which is harmful to the cooling stave life; the variation of the equivalent Bosh angle has a most significant influence on the cooling stave life, and the increase of the equivalent Bosh angle will cause a sharp increase of the gas flow velocity, which will damage the copper staves seriously; adopting long tuyeres and minishing the equivalent Bosh angle will reduce the washing action of the gas flow and ensure the stability of slag hanging to achieve a long service life of copper staves.
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spelling doaj.art-ff2664a16f9a4c1b8c845081bd7d47832022-12-21T22:39:34ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242019-02-013820191710.1515/htmp-2017-0040Research on the Influence of Furnace Structure on Copper Cooling Stave LifeLi Feng-guang0Zhang Jian-liang1School of Materials Science and Engineering, Hubei University of Automotive Technology, Shiyan, Hubei442002, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing100083, ChinaIn this paper, a blast furnace gas flow distribution model with variable furnace structure was founded based on CFD (computational fluid dynamics) theory, and the gas velocity distribution near the surface of the copper staves in different areas of the BF is calculated under different conditions of variational structure parameters like Bosh angle, shaft angle, and the newly proposed “equivalent Bosh angle.” Based on the calculation, the influence rule of the BF structure on the service life of copper stave and the corresponding operation measures were obtained. The result shows that the increase of the Bosh angle and the decrease of the shaft angle will incur increasing of the gas flow velocity near the surface of the copper staves, which is harmful to the cooling stave life; the variation of the equivalent Bosh angle has a most significant influence on the cooling stave life, and the increase of the equivalent Bosh angle will cause a sharp increase of the gas flow velocity, which will damage the copper staves seriously; adopting long tuyeres and minishing the equivalent Bosh angle will reduce the washing action of the gas flow and ensure the stability of slag hanging to achieve a long service life of copper staves.https://doi.org/10.1515/htmp-2017-0040blast furnacefurnace structurecopper cooling stavegas flow distributionnumerical simulation
spellingShingle Li Feng-guang
Zhang Jian-liang
Research on the Influence of Furnace Structure on Copper Cooling Stave Life
High Temperature Materials and Processes
blast furnace
furnace structure
copper cooling stave
gas flow distribution
numerical simulation
title Research on the Influence of Furnace Structure on Copper Cooling Stave Life
title_full Research on the Influence of Furnace Structure on Copper Cooling Stave Life
title_fullStr Research on the Influence of Furnace Structure on Copper Cooling Stave Life
title_full_unstemmed Research on the Influence of Furnace Structure on Copper Cooling Stave Life
title_short Research on the Influence of Furnace Structure on Copper Cooling Stave Life
title_sort research on the influence of furnace structure on copper cooling stave life
topic blast furnace
furnace structure
copper cooling stave
gas flow distribution
numerical simulation
url https://doi.org/10.1515/htmp-2017-0040
work_keys_str_mv AT lifengguang researchontheinfluenceoffurnacestructureoncoppercoolingstavelife
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