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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2022-10-724-732</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2416</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Численные исследования параметров теплообмена при инжекционной подаче порошков в расплав рельсовой стали в агрегате ковш – печь</article-title><trans-title-group xml:lang="en"><trans-title>Numerical studies of heat transfer parameters during injection feeding of powders into the rail steel melt in ladle-furnace</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7554-2168</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Протопопов</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Protopopov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Валентинович Протопопов, д.т.н., профессор, профессор кафедры металлургии черных металлов</p><p>Россия, 654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Evgenii V. Protopopov, Dr. Sci. (Eng.), Prof. of the Chair of Ferrous Me­tallurgy</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007, Russian Federation</p></bio><email xlink:type="simple">protopopov@sibsiu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Думова</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dumova</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Любовь Валерьевна Думова, ст. преподаватель кафедры ме­недж­мента и отраслевой экономики</p><p>Россия, 654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Lyubov’ V. Dumova, Senior Lecturer of the Chair “Management and Branch Economy”</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007, Russian Federation</p></bio><email xlink:type="simple">doumova@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ноздрин</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nozdrin</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Викторович Ноздрин, д.т.н., доцент, профессор кафедры металлургии цветных металлов и химической технологии</p><p>Россия, 654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Igor’ V. Nozdrin, Dr. Sci. (Eng.), Assist. Prof., Prof. of the Chair “Non-Ferrous Metallurgy and Chemical Engineering”</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007, Russian Federation</p></bio><email xlink:type="simple">kafcmet@sibsiu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышева</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernysheva</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Анатольевна Чернышева, доцент кафедры металлургии черных металлов</p><p>Россия, 654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Natal’ya A. Chernysheva, Assist. Prof. of the Chair of Ferrous Metallurgy</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007, Russian Federation</p></bio><email xlink:type="simple">chernysheva_na@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>10</month><year>2022</year></pub-date><volume>65</volume><issue>10</issue><fpage>724</fpage><lpage>732</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Протопопов Е.В., Думова Л.В., Ноздрин И.В., Чернышева Н.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Протопопов Е.В., Думова Л.В., Ноздрин И.В., Чернышева Н.А.</copyright-holder><copyright-holder xml:lang="en">Protopopov E.V., Dumova L.V., Nozdrin I.V., Chernysheva N.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://fermet.misis.ru/jour/article/view/2416">https://fermet.misis.ru/jour/article/view/2416</self-uri><abstract><p>С использованием исследования и разработки основных положений внепечной обработки рельсовой стали в агрегате ковш – печь рассмотрены особенности технологии вдувания порошкообразных реагентов в расплав через погружную фурму. В условиях продувки проанализированы характеристики влияния направленного теплового потока через условную разделительную стенку фурмы от металла к двухфазному газопорошковому потоку. С применением численных методов определены параметры влияния температуры поверхности погружной фурмы на характеристики транспортирующего газа, концентрацию порошка и его плотность, и на характеристики газопорошкового течения, в том числе коэффициент аэродинамического сопротивления, давление транспортирующего газа, разность скоростей фаз, эквивалентный диаметр, коэффициент формы частиц. Полученные результаты экспериментов показывают, что при одном и том же расходе транспортирующего газа более значительные тепловые потоки, обеспечивающие стабильную работу дутьевого устройства, создаются при использовании более легкого газа (азота), при этом диаметр порошкообразных частиц практически не влияет на количество теплоты, передаваемой от стенки фурмы к транспортирующему газу. Установлено, что при использовании погружных фурм и нагрева газопорошкового потока до температуры 500 – 600 °С в 2 – 10 раз изменяется сила межфазного взаимодействия в зависимости от коэффициента формы частиц, концентрации вдуваемого порошка, давления транспортирующего газа, разности скоростей фаз и плотности порошка.</p></abstract><trans-abstract xml:lang="en"><p>Technological features of powdered reagents injection into the melt using a submersible tuyere were investigated for the research and development of the main provisions of rail steel out–of-furnace treatment in a ladle-furnace. Authors analyzed the characteristics of influence of a directed heat flow through the tuyere conditional separation wall from metal to two-phase gas-powder flow under purging conditions. Using numerical methods, were determined the parameters of influence of the submersible tuyere surface temperature on characteristics of the transporting gas, concentration of the powder and its density, and on characteristics of the gas-powder flow, including the aerodynamic drag coefficient, pressure of the transporting gas, difference in phase velocities, equivalent diameter, and particle shape coefficient. The obtained experimental results show that at the same flow rate of the transporting gas, more significant heat flows, ensuring stable operation of the blowing device, are created by using a lighter gas (nitrogen), while the diameter of powdered particles does not affect the amount of heat transferred from the tuyere wall to the transporting gas. It was established that when using submersible tuyeres and heating the gas–powder flow to a temperature of 500 – 600 °C, the strength of the interfacial interaction changes by 2 to 10 times depending on the particle shape coefficient, concentration of the injected powder, pressure of the transporting gas, difference in phase velocities and density of the powder.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>внепечная обработка</kwd><kwd>погружная фурма</kwd><kwd>порошкообразные реагенты</kwd><kwd>газопорошковая продувка</kwd><kwd>тепловой поток</kwd><kwd>транспортирующий газ</kwd><kwd>газодинамика и теплообмен в дисперсной среде</kwd></kwd-group><kwd-group xml:lang="en"><kwd>out-of-furnace treatment</kwd><kwd>submersible tuyere</kwd><kwd>powdered reagents</kwd><kwd>gas-powder purging</kwd><kwd>heat flow</kwd><kwd>transporting gas</kwd><kwd>gas dynamics</kwd><kwd>heat transfer in dispersed medium</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 22-29-20170.</funding-statement><funding-statement xml:lang="en">The research was supported by the Russian Science Foundation, grant No. 22-29-20170.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Поляков В.В., Великанов А.В. 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