Real-time prediction model of slag composition in electric arc furnace steelmaking

YANG Ling-zhi; XUE Bo-tao; SONG Jing-ling; WEI Guang-sheng; GUO Yu-feng; XIE Xin; LIU Quan-sheng

doi:10.13374/j.issn2095-9389.2020.04.05.s12

Volume 42 Issue S

Dec. 2020

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YANG Ling-zhi, XUE Bo-tao, SONG Jing-ling, WEI Guang-sheng, GUO Yu-feng, XIE Xin, LIU Quan-sheng. Real-time prediction model of slag composition in electric arc furnace steelmaking[J]. Chinese Journal of Engineering, 2020, 42(S): 39-46. doi: 10.13374/j.issn2095-9389.2020.04.05.s12

Citation:

YANG Ling-zhi, XUE Bo-tao, SONG Jing-ling, WEI Guang-sheng, GUO Yu-feng, XIE Xin, LIU Quan-sheng. Real-time prediction model of slag composition in electric arc furnace steelmaking[J]. Chinese Journal of Engineering, 2020, 42(S): 39-46. doi: 10.13374/j.issn2095-9389.2020.04.05.s12

Citation:

YANG Ling-zhi, XUE Bo-tao, SONG Jing-ling, WEI Guang-sheng, GUO Yu-feng, XIE Xin, LIU Quan-sheng. Real-time prediction model of slag composition in electric arc furnace steelmaking[J]. Chinese Journal of Engineering, 2020, 42(S): 39-46. doi: 10.13374/j.issn2095-9389.2020.04.05.s12

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Real-time prediction model of slag composition in electric arc furnace steelmaking

doi: 10.13374/j.issn2095-9389.2020.04.05.s12

1.
School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
2.
Hengyang Valin Steel Tube Co., Ltd., Hengyang 421000, China
3.
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

More Information

Corresponding author: E-mail: weiguangsheng@ustb.edu.cn
Received Date: 2020-04-05
Publish Date: 2020-12-25

Abstract

Abstract

To realize the real-time prediction of slag composition in the smelting process and provide the assistance to the operations in electric arc furnace (EAF) steelmaking process such as charging, the influence factors on the slag composition in the furnace (furnace reaction, charging, and slag overflowing) were studied, and the real-time prediction model of slag composition in EAF steelmaking process was established. In the results, the model could predict the slag quality, the slag composition, and the oxidation status of Fe element in the furnace in real time, providing the guidance for the auxiliary material charging and the slag flowing in the smelting process. Compared with the slag sampling results, the average relative errors of CaO, SiO₂, and FeO content in the slag between the actual measurement and the model predicted values were 12.66%, 11.17%, and 19.16%, respectively.
- electric arc furnace steelmaking,
- slag composition,
- real-time prediction,
- furnace reaction,
- charging,
- slag overflowing

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References(21)

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