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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">10.17073/0368-0797-2021-12-912-920</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2222</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>ФИЗИКО-ХИМИЧЕСКИЕ ОСНОВЫ МЕТАЛЛУРГИЧЕСКИХ ПРОЦЕССОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICO-CHEMICAL BASICS OF METALLURGICAL PROCESSES</subject></subj-group></article-categories><title-group><article-title>Исследование особенностей дожигания отходящих газов в конвертере при использовании для продувки двухъярусных кислородных фурм</article-title><trans-title-group xml:lang="en"><trans-title>Features of exhaust gases afterburning  in a converter when using two-tier oxygen lances for refining</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 кафедры металлургии черных металлов</p><p>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</p></bio><email xlink:type="simple">protopopov@sibsiu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7985-5666</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Темлянцев</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Temlyantsev</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Викторович Темлянцев, д.т.н., профессор, проректор по учебной и воспитательной работе</p><p>654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Mikhail V. Temlyantsev, Dr. Sci. (Eng.), Prof., Vice-Rector for Educational and Tutorial Work</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007</p></bio><email xlink:type="simple">uchebn_otdel@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>Якушевич</surname><given-names>Н. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakushevich</surname><given-names>N. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Филиппович Якушевич, д.т.н., профессор, профессор- консультант кафедры металлургии цветных металлов и химической технологии</p><p>654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Nikolai F. Yakushevich, Dr. Sci. (Eng.), Prof.-Consultant of the Chair “Non-Ferrous Metallurgy and Chemical Engineering”</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007</p></bio><email xlink:type="simple">Yakushevich@cmet.sibsiu</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>Солоненко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Solonenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виталий Владимирович Солоненко, соискатель степени к.т.н. кафедры металлургии черных металлов</p><p>654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Vitalii V. Solonenko, Candidates for a degree of Cand. Sci. (Eng.) of the Chair of Ferrous Metallurgy</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007</p></bio><email xlink:type="simple">Solonenko-nvkz@mail.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>Сафонов</surname><given-names>С. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Safonov</surname><given-names>S. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Олегович Сафонов, ассистент кафедры металлургии черных металлов</p><p>654007, Кемеровская обл. – Кузбасс, Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Sergei O. Safonov, Assistant of the Chair of Ferrous Metallurgy</p><p>42 Kirova Str., Novokuznetsk, Kemerovo Region – Kuzbass 654007</p></bio><email xlink:type="simple">sergey.safonov.1950@mail.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>2021</year></pub-date><pub-date pub-type="epub"><day>24</day><month>01</month><year>2022</year></pub-date><volume>64</volume><issue>12</issue><fpage>912</fpage><lpage>920</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Протопопов Е.В., Темлянцев М.В., Якушевич Н.Ф., Солоненко В.В., Сафонов С.О., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Протопопов Е.В., Темлянцев М.В., Якушевич Н.Ф., Солоненко В.В., Сафонов С.О.</copyright-holder><copyright-holder xml:lang="en">Protopopov E.V., Temlyantsev M.V., Yakushevich N.F., Solonenko V.V., Safonov S.O.</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/2222">https://fermet.misis.ru/jour/article/view/2222</self-uri><abstract><p>Выполнено теоретическое обоснование повышения эффективности дожигания конвертерных газов в агрегате при двухъярусной подаче разноимпульсных кислородных струй и сгорании СО до СО2 в канальном потоке газов, выходящих из реакционной зоны. Проведен термодинамический анализ процесса дожигания отходящих газов в полости конвертера при использовании для продувки двухъярусных кислородных фурм. Показано, что при вдувании кислородных газовых струй через сопла верхнего яруса с расходом 10 – 40 % от общего минутного расхода не обеспечивается достаточно полное дожигание оксида углерода СО. Лимитирующими факторами являются неравномерное количество и неорганизованный выход образующегося в реакционных зонах СО в различные периоды операции, низкая эффективность перемешивания отходящего потока с высокоскоростными газовыми струями и чрезмерно избыточное количество кислорода, подаваемого для дожигания, недостаточное смешение компонентов газовой фазы и низкая скорость реакции. Показано, что при обеспечении условий для дожигания СО до соотношения концентрации в газовой фазе image температура отходящего газа в полости конвертера может возрастать с 1800 до 2000 К, далее тепловой эффект от экзотермической реакции уменьшается. Количество кислорода, вдуваемого для дожигания СО, должно соответствовать остаточному содержанию углерода в металле при выполнении условия м3/мин ≈ 100 [Сост ] %. Избыток кислорода в газовой фазе и присутствие значительного количества нейтрального газа в значительной степени уменьшают коэффициент использования выделяющегося тепла в агрегате.</p></abstract><trans-abstract xml:lang="en"><p>The theoretical substantiation was carried out for increasing the efficiency of converter gases afterburning in the unit with a two­tier supply of multi­pulse oxygen jets and combustion of CO to CO2 in the channel flow of gases leaving the reaction zone. The authors made the thermodynamic analysis of the process of exhaust gases afterburning in converter cavity when using two­tier oxygen lances for refining. It is shown that when oxygen gas jets are blown through the upper­tier nozzles with a flow rate of 10 – 40 % of the total minute flow rate, a sufficiently complete afterburning of carbon monoxide CO is not provided. The limiting factors are the uneven amount and disorganized output of the CO formed in the reaction zones during various operation periods, low efficiency of mixing the waste stream with high­speed gas jets and an excessively excessive amount of oxygen supplied for afterburning, insufficient mixing of the components of the gas phase and low reaction rate. It is shown that when the conditions are provided for CO afterburning to the concentration ratio in the gas phase, temperature of the exhaust gas in the converter cavity can increase from 1800 to 2000 K, then the thermal effect of the exothermic reaction decreases. The amount of oxygen injected for CO afterburning must correspond to the residual carbon content in the metal at m3/min ≈ 100 [Сост ] %. Excess of oxygen in the gas phase and presence of a significant amount of neutral gas significantly reduce the utilization rate of the generated heat in the unit.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конвертер</kwd><kwd>двухъярусная фурма</kwd><kwd>дожигание отходящих газов</kwd><kwd>газовые струи</kwd><kwd>монооксид углерода</kwd><kwd>энтальпия</kwd><kwd>энергия Гиббса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>converter</kwd><kwd>two-tier lance</kwd><kwd>afterburning of exhaust gases</kwd><kwd>gas jets</kwd><kwd>carbon monoxide</kwd><kwd>enthalpy</kwd><kwd>Gibbs energy</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Воскобойников В.Г., Перказов И.М., Завидонский В.А. Внедоменная обработка чугуна за рубежом. Серия «Подготовка сырьевых материалов к металлургическому переделу и производство чугуна». Вып. 2. 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