Slag mode regulation in electric arc furnace based on electrical parameters control during melting oxidation period
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Slag mode regulation in electric arc furnace based on electrical parameters control during melting oxidation period
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| Автор |
Sivtsov, A. V.
Sheshukov, O. Yu. Egiazar’yan, D. K. Tsymbalist, M. M. Lobanov, D. A. |
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| Тематика |
ELECTRIC ARC
ELECTRIC ARC FURNACE METAL OXIDATION PROCESS CONTROL SLAG BASICITY SLAG MODE |
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| Описание |
The results of observation of steelmaking oxidation stage at EAF-135 were analyzed with automated control system of the electrical characteristics. There are three main zones in the furnace working space, which differ by the aggregate state of the materials in them: arc discharge, melt and foamed slag. The distribution data of electric power over the furnace zones is given. There is active powers asymmetry of the arcs under single electrodes affected by asymmetry of the short network. It is shown that the main factors impacting the melt and slag resistances are oxygen blow and electrode movement. The authors studied the influence of magnesia flux feeds on the melt resistance. These feeds correspond to a sharp increase and a subsequent gradual decrease in resistance, and the time for assimilation of additives does not exceed one minute. The average electrical parameters of the working space zones are given for the EAF-135 at single heats. A comparison was made of the nature of change in the arc discharge power and the change in the melt temperature. The profiles match of changes in these characteristics to an increase in the arc power corresponds to increase in the melt temperature. An attempt to correlate FeO content in the slag with the arc power did not give a positive result. However, this methodology should be tested under conditions of steel refining in a ladle-furnace unit. It is noted that the parameter control at changing of the electrical parameters of the arc and slag zones due to the overwhelming influence of intense oxygen blast, melt mixing and electrode displacement does not meet the reliability criterion. © 2022 National University of Science and Technology MISIS. All rights reserved.
Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, (122020100125-6) The work was carried out according to the state task of the Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences No. 122020100125-6. |
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| Дата |
2024-04-08T11:05:58Z
2024-04-08T11:05:58Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Сивцов, АВ, Шешуков, ОЮ, Егиазарьян, ДК, Цимбалист, ММ & Лобанов, ДА 2022, 'Регулирование шлакового режима выплавки стали в электродуговой печи на основе контроля электрических параметров в ходе окислительного периода плавки', Известия высших учебных заведений. Черная металлургия, Том. 65, № 9, стр. 619-628. https://doi.org/10.17073/0368-0797-2022-9-619-628
Сивцов, А. В., Шешуков, О. Ю., Егиазарьян, Д. К., Цимбалист, М. М., & Лобанов, Д. А. (2022). Регулирование шлакового режима выплавки стали в электродуговой печи на основе контроля электрических параметров в ходе окислительного периода плавки. Известия высших учебных заведений. Черная металлургия, 65(9), 619-628. https://doi.org/10.17073/0368-0797-2022-9-619-628 0368-0797 Final All Open Access; Hybrid Gold Open Access https://fermet.misis.ru/jour/article/download/2394/1705 https://fermet.misis.ru/jour/article/download/2394/1705 http://elar.urfu.ru/handle/10995/131242 49549437 10.17073/0368-0797-2022-9-619-628 85142607355 |
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| Язык |
ru
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
National University of Science and Technology MISIS
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| Источник |
Izvestiya. Ferrous Metallurgy
Izvestiya Ferrous Metallurgy |
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