DOI: 10.52150/2522-9117-2024-38-232-252

Molchanov Lavr Serhiiovych, Ph. D. (Tech.), Head of Department, Senior Researcher, Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova Square, 1, Dnipro, 49107, Ukraine. ORCID: 0000-0001-6139-5956. E-mail: metall729321@gmail.com

Golub Tetiana Serhiivna, Ph. D. (Tech.), Senior Researcher, Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova Square, 1, Dnipro, 49107, Ukraine. ORCID: 0000-0001-9269-2953. E-mail: isinasu.golubts@gmail.com

Semykin Serhii Ivanovych, Ph. D. (Tech.), Senior Researcher, Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova Square, 1, Dnipro, 49107, Ukraine. ORCID: 0000-0002-7365-2259. E-mail: isisemykin@gmail.com

METHODOLOGICAL ASPECTS OF ANALYSIS AND INTERPRETATION OF THE RESULTS OF PHYSICAL MODELING OF THE PROCESSES OF INTERACTION OF GAS JETS WITH LIQUID PHASES OF AN OXYGEN-CONVERTER BATH

Abstract. The steel industry is an integral part of modern heavy industry and a base for other industries, as it provides structural materials, among which steel of various grades occupies an important place. In the world, a larger share of steel production falls on oxygen converter process. That fact determines the relevance of constant development and improvement of the process from both technological and environmental aspects. However, any innovation requires research and testing that cannot be carried out in industrial conditions due to the possibility of harming current production and wasting time and resources. Because of this, the direction of modeling the oxygen converter process is actively developing. Modeling can take place physically on cold models or high temperature models, or virtually using mathematical models. However, the latter require preliminary research on physical models to search for patterns that will become their basis. Thus, physical full-scale modeling is an integral basis and source of information about all processes that accompany the production of steel. However, each obtained result must be adequately interpreted. Thus, the paper proposes options for studying and interpreting the dynamic indicators of the blowing process based on the results obtained by physical modeling. The developed methods were used to evaluate various options for cold modeling using aqueous two-phase models, where water simulating liquid steel and other liquid simulating slag are used as model liquids; and high-temperature modeling on a real metal melt on a small scale. The dynamic features of the movement of phases during top blowing were established, that were determined using the specified modeling methods, namely the speed of movement of particles of one phase simulating slag when entering another phase simulating steel melt during blowing; movement of the bath surface depending on technological parameters and based on the results of high temperature modeling, the features of the pulsation of the blowing well, which creates by a jet of blowing gas, have been established.

Key words: oxygen-converter process, cold modeling, high temperature modeling, blowing, velocity of phase movement.

DOI: https://doi.org/10.52150/2522-9117-2024-38-232-252

For citation: Molchanov, L. S., Golub, T. S., & Semykin, S. I. (2024). Methodological aspects of analysis and interpretation of the results of physical modeling of the processes of interaction of gas jets with liquid phases of an oxygen-converter bath. Fundamental and applied problems of ferrous metallurgy, 38, 232-252. https://doi.org/10.52150/2522-9117-2024-38-232-252

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