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Value in use of lime in BOF steelmaking process
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Yan, Zhiming, Li, Zushu, Manocha, Sanjeev, Ponchon, Francois and Nafornita, Sorinel (2022) Value in use of lime in BOF steelmaking process. Ironmaking & Steelmaking, 49 (1). pp. 42-48. doi:10.1080/03019233.2021.1966233 ISSN 0301-9233.
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WRAP-Value-use-lime-BOF-steelmaking-process-2021.pdf - Accepted Version - Requires a PDF viewer. Download (1609Kb) | Preview |
Official URL: https://doi.org/10.1080/03019233.2021.1966233
Abstract
In the BOF steelmaking process, lime quality and quantity directly affect slag quality, affecting metallurgical results, liquid metal yield, productivity, and therefore the total cost and environmental impact of the steel production. In this paper, a value in use model based on mass balance and heat balance was developed and used to evaluate the impact of lime quality on the BOF process. The model is capable of calculating the consumption of scrap, lime, oxygen, the volume and composition of the slag and the volume and composition of off-gas and facilities to calculate the cost-benefit contributions and potential cost saving for a configured choice of various types of lime and operating parameters. The model has been successfully validated using the data of the Steel Plant. Then three types of lime with different qualities were used to elaborate on the impact of lime characteristics in optimizing the steelmaking process, metallurgical benefits, overall cost impact, potential savings, and environmental benefits. The calculation results show that good-quality lime could increase the scrap ratio, reduce the lime consumption, and reduce iron loss, accordingly, improve the steel quality, increase steel yield, reduce the smelting costs, stabilize smelting operations, and reduce CO2 emissions.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TN Mining engineering. Metallurgy T Technology > TS Manufactures |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
| Library of Congress Subject Headings (LCSH): | Basic oxygen furnaces, Steel industry and trade , Steel -- Metallurgy -- Oxygen processes, Lime , Lime -- Industrial applications, Carbon dioxide mitigation | ||||||||
| Journal or Publication Title: | Ironmaking & Steelmaking | ||||||||
| Publisher: | Maney Publishing | ||||||||
| ISSN: | 0301-9233 | ||||||||
| Official Date: | 2022 | ||||||||
| Dates: |
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| Volume: | 49 | ||||||||
| Number: | 1 | ||||||||
| Page Range: | pp. 42-48 | ||||||||
| DOI: | 10.1080/03019233.2021.1966233 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Reuse Statement (publisher, data, author rights): | โThis is an Accepted Manuscript of an article published by Taylor & Francis in Ironmaking & Steelmaking on 22/08/2021, available online: http://www.tandfonline.com/10.1080/03019233.2021.1966233 | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 6 August 2021 | ||||||||
| Date of first compliant Open Access: | 22 August 2022 | ||||||||
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