{"id":4981,"date":"2025-01-29T23:01:48","date_gmt":"2025-01-29T20:01:48","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=4981"},"modified":"2026-03-28T01:28:47","modified_gmt":"2026-03-27T22:28:47","slug":"doi-10-52150-2522-9117-2024-38-199-221","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=4981&lang=en","title":{"rendered":"DOI: 10.52150\/2522-9117-2024-38-199-221"},"content":{"rendered":"\n

Golub Tetiana Serhiivna<\/strong>, 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<\/p>\n\n\n\n

Molchanov Lavr Serhiiovych<\/strong>, 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<\/p>\n\n\n\n

COMPLEX ANALYSIS OF METHODS OF INCREASE IN STEEL PRODUCTION EFFICIENCY ON THE EXAMPLE OF THE APPLICATION OF ELECTRICAL ACTIVATION OF THE OXYGEN FLOW IN TOP BLOW CONVERTERS<\/strong><\/strong><\/h2>\n\n\n\n

Abstract. <\/strong> Dynamic modernity and the rapid development of science and technology require the steel industry to constantly improve and intensify all stages of production without significant material costs in order to maintain competitiveness on the construction materials market. This also applies to the currently most effective method of obtaining a liquid metal semi-product – the oxygen-converter method of production. During its existence, being in constant improvement, for the oxygen-converter method, rational indicators of technological factors that can intensify the process have already been thoroughly researched and established, optimal limits of their use have been found, that limits their further improvement. Therefore, new methods of physical influence come to the fore, among which the development of a method of activation of an oxygen gas jet with an electric discharge is relevant. The method proposed by the authors for creating a high-voltage discharge at the outlet of the blowing device was investigated in the paper. This causes the formation of free charged oxygen particles in the gas (ions), that are more active than molecular oxygen in dissolving and interacting with other chemical compounds. The main direction of research reflected in the paper was the thermodynamic analysis of the influence of activation by a high-voltage discharge of an oxygen jet on the course of reactions involving the gaseous phase. The calculations were performed with respect to the Gibbs free energy. This parameter is an indicator of the probability of the free flow of reactions with the formation, in this case, of oxide products. It is indirectly responsible for the intensity of the entire oxygen converter process. Calculations were made for oxidation reactions of melt components in the reaction zone, taking into account the effect of the number of activated particles on the electrode potentials, first of all, of gaseous oxygen. According to the results of the analysis, it was concluded that the process of carbon oxidation and the process of oxygen dissolution in the iron-carbon melt are mainly activated due to the action of gaseous oxygen ions. Accordingly, this should both intensify the course of oxygen converter process itself with active slag formation and the active flow of all oxidation processes, and shorten its duration.<\/p>\n\n\n\n

Key words<\/strong>: oxygen-converter process, top blowing with oxygen, high-voltage electric discharge, ions, oxidation reactions, Gibbs free energy.<\/p>\n\n\n\n

DOI:<\/strong> https:\/\/doi.org\/10.52150\/2522-9117-2024-38-199-221<\/a><\/p>\n\n\n\n

For citation:<\/strong> Golub, T. S., & Molchanov, L. S. (2024). Complex analysis of methods of increase in steel production efficiency on the example of the application of electrical activation of the oxygen flow in top blow converters. Fundamental and applied problems of ferrous metallurgy<\/em>, 38, 199-221. https:\/\/doi.org\/10.52150\/2522-9117-2024-38-199-221<\/a><\/p>\n\n\n\n

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\"\"<\/a><\/figure>\n\n\n\n

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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 Molchanov Lavr Serhiiovych, Ph. D. (Tech.), Head of Department, Senior Researcher, Iron and Steel Institute of Z. I. Nekrasov National Academy of […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4981","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/4981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4981"}],"version-history":[{"count":2,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/4981\/revisions"}],"predecessor-version":[{"id":5992,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/4981\/revisions\/5992"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}