Metal Degassing in Vacuum-Chamber of Circulating Vacuum Degasser of JSC EVRAZ NTMK
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Metal Degassing in Vacuum-Chamber of Circulating Vacuum Degasser of JSC EVRAZ NTMK
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| Автор |
Metelkin, A. A.
Sheshukov, O. Y. Tkachev, A. S. Kovyazin, I. V. Chiglintsev, A. V. Shevchenko, O. I. |
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| Тематика |
CIRCULATING VACUUM DEGASSER
DEGASSING HYDROGEN REMOVAL OUT-OF-FURNACE STEEL TREATMENT RATIONAL PARAMETERS CONTINUOUS CASTING FLOW OF GASES GAS PLANTS LADLES SMELTING STEELMAKING CIRCULATING VACUUM DEGASSER HYDROGEN CONTENTS HYDROGEN REMOVAL IN-VACUUM OUT-OF-FURNACE STEEL TREATMENT RATIONAL PARAMETER STEEL TREATMENT THEORETICAL CALCULATIONS VACUUM CHAMBERS VACUUM DEGASSERS DEGASSING |
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| Описание |
Abstract: For smelting of high-quality metal for the applications in transport vehicles, it is necessary to limit the content of harmful impurities in it, including dissolved gases. For example, hydrogen content in the finished product should not exceed more than 2 ppm. In order to obtain low residual hydrogen content in steel in the converter shop of JSC EVRAZ NTMK, the transport metal is processed at circulating vacuuming plants. Circulating vacuum degasser is the last stage of steel processing before casting on continuous casting machine, so it is important to study and improve the technological processes in it. To investigate the physico-chemical processes occurring in this metallurgical unit, a hydrodynamic model was created for the system that includes the circulating vacuum degasser and the steel ladle. Based on theoretical calculations using physical model and experiments conducted, the main dependencies between the structural and technological parameters of the metallurgical unit were determined. The resulting equation makes it possible to determine the rate of metal circulation in vacuum chamber depending on the gas flow rate supplied to inlet snorkel and its inner diameter at circulating vacuuming plants designed for metal processing in steel ladles with a capacity of 140–180 tons. Theoretical calculations were confirmed by practical smelting in a steelmaking unit. It is shown that in order to obtain stable residual hydrogen content during the wear of lining of the inlet snorkel vacuum chamber, it is necessary to make changes in the technological process of vacuuming. Additionally, rational technological parameters of steel processing at the circulating vacuuming plant were determined on the basis of theoretical calculations. © 2022, Allerton Press, Inc.
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| Дата |
2024-04-08T11:07:37Z
2024-04-08T11:07:37Z 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 |
Metelkin, AA, Sheshukov, OY, Tkachev, AS, Kovyazin, IV, Chiglintsev, AV & Shevchenko, OI 2022, 'Metal Degassing in Vacuum-Chamber of Circulating Vacuum Degasser of JSC EVRAZ NTMK', Steel in Translation, Том. 52, № 10, стр. 920-924. https://doi.org/10.3103/S0967091222100060
Metelkin, A. A., Sheshukov, O. Y., Tkachev, A. S., Kovyazin, I. V., Chiglintsev, A. V., & Shevchenko, O. I. (2022). Metal Degassing in Vacuum-Chamber of Circulating Vacuum Degasser of JSC EVRAZ NTMK. Steel in Translation, 52(10), 920-924. https://doi.org/10.3103/S0967091222100060 0967-0912 Final All Open Access; Green Open Access https://fermet.misis.ru/jour/article/download/2415/1718 https://fermet.misis.ru/jour/article/download/2415/1718 http://elar.urfu.ru/handle/10995/131489 10.3103/S0967091222100060 85149917894 |
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| Язык |
en
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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 |
Pleiades Publishing
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| Источник |
Steel in Translation
Steel in Translation |
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