Quantification and analysis of slag carryover during liquid steel tapping from BOF vessel

Kamaraj, Ashok and Mandal, Gopi K. and Shanmugam, Sethu P. and et al, . (2022) Quantification and analysis of slag carryover during liquid steel tapping from BOF vessel. Canadian Metallurgical Quarterly, 61 (2). pp. 202-215. ISSN 0008-4433

Full text not available from this repository. (Request a copy)


The amount of slag carryover (SCO) during the liquid steel tapping from the basic oxygen furnace (BOF) vessel has been estimated using a thermodynamic model that ensures the matching the predicted bath silicon with that of experimentally measured silicon in ladle furnace. FactSage 6.4 has been used for thermodynamic analysis. A simple correlation has also been established to estimate SCO immediately after the tapping process using the readily available plant data. Viscosity, interfacial tension of the slag, impurities in the liquid steel, and the tapping temperature has been found to have a profound effect on the amount of SCO. The advantage of the present method of SCO estimation compared to the other methods and the industrially viable control measures for minimising SCO is discussed in light of clean steel practices. Further, industry trials have been conducted to validate the control of SCO by tuning the BOF slag properties. © 2022 Canadian Institute of Mining, Metallurgy and Petroleum.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Additional Information: The authors are thankful to the plant operators working in the steel melting shop of JSW Steel Ltd, Salem, for their kind assistance during data and sample collection to carry out this research activity. The authors are also thankful to Mr. M. Sudhakar (Formerly at M/s. Gerdau Steel India) for conducting the industry trials during June 2018 after attending PTP at CSIR-NML 2017. Author (Ashok Kamaraj) is also thankful to Prof. Seshadri Seetharaman, Distinguished Visiting Professor, Indian Institute of Technology Bombay, for clarifying the complex relationships among the physical properties of the steelmaking slag (via. email conversation) to improve the discussion part of the manuscript.
Uncontrolled Keywords: FactSage; slag carryover; Steelmaking; tapping
Subjects: Others > Metallurgy Metallurgical Engineering
Materials Engineering > Materials engineering
Divisions: Department of Material Science Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 23 Jul 2022 11:25
Last Modified: 23 Jul 2022 11:25
URI: http://raiith.iith.ac.in/id/eprint/9891
Publisher URL: http://doi.org/10.1080/00084433.2022.2044688
OA policy: https://v2.sherpa.ac.uk/id/publication/14982
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 9891 Statistics for this ePrint Item