blackmetИзвестия высших учебных заведений. Черная МеталлургияIzvestiya. Ferrous Metallurgy0368-07972410-2091National University of Science and Technology "MISIS"10.17073/0368-0797-2015-4-248-257blackmet-650Research ArticleМЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИMETALLURGICAL TECHNOLOGIESИССЛЕДОВАНИЕ ОСОБЕННОСТЕЙ ФОРМИРОВАНИЯ МЕТАЛЛОШЛАКОВЫХ НАСТЫЛЕЙ НА ДВУХЪЯРУСНЫХ КИСЛОРОДНЫХ ФУРМАХ ПРИ ПРОДУВКЕ КОНВЕРТЕРНОЙ ВАННЫFORMATION PECULARITIES OF METALL-SLAG SKULLS ON TWO-LEVEL OXYGEN LANCES AT BLOWING OF CONVERTER BATHПротопоповЕ. В.ProtopopovE. V.

д.т.н., профессор, ректор

Dr. Sci. (Eng.), Professor, Rector

ЧернятевичА. Г.ChernyatevichA. G.

д.т.н., профессор, заведующий отделом физико-технических проблем металлургии стали

Dr. Sci. (Eng.), Professor, Head of the Chair of physicotechnical problems of steel metallurgy

ФейлерС. В.FeilerS. V.

к.т.н., доцент кафедры металлургии черных металлов

Cand. Sci. (Eng.), Assist. Professor of the Chair “Ferrous Metallurgy”

feyler@rdtc.ruВакульчукВ. В.Vakul’chukV. V.

младший научный сотрудник отдела физико-технических проблем металлургии стали

Junior Researcher of the Chair of physicotechnical problems of steel metallurgy

СоколА. Н.SokolA. N.

к.т.н., старший преподаватель кафедры прикладной математики

Cand. Sci. (Eng.), Senior Lecturer of the Chair “Applied Mathematics”

Сибирский государственный индустриальный университет 654007, Россия, Кемеровская обл., г. Новокузнецк, ул. Кирова, 42РоссияSiberian State Industrial University 42, Kirova str., Novokuznetsk, Kemerovo Region, 654007, RussiaRussian FederationИнститут черной металлургии им. З.И. Некрасова НАН Украины 49050, Украина, г. Днепропетровск, Площадь Академика Стародубова, 1РоссияInstitute of Ferrous Metallurgy named after Nekrasov Z.I., Ukrainian National Academy 1, Academica Starodubova sqrю, Dnepropetrovsk, 49050, UkraineRussian FederationДнепродзержинский государственный технический университет 51918, Украина, Днепропетровская обл., г. Днепродзержинск, ул. Днепростроевская, 2РоссияDneprodzerzhinsk State Technical University 2, Dneprostroevskaya str., Dneprodzerzhinsk, Dnepropetrovsk Region, 51918, UkraineRussian Federation201510062015584248257Copyright © Протопопов Е.В., Чернятевич А.Г., Фейлер С.В., Вакульчук В.В., Сокол А.Н., 20152015Протопопов Е.В., Чернятевич А.Г., Фейлер С.В., Вакульчук В.В., Сокол А.Н.Protopopov E.V., Chernyatevich A.G., Feiler S.V., Vakul’chuk V.V., Sokol A.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://fermet.misis.ru/jour/article/view/650

Рассмотрены технологические варианты конвертерной плавки при использовании двухъярусных фурм различной конструкции. Освещены особенности формирования металлошлаковых настылей на стволе двухъярусных кислородных фурм при верхней продувке ванны 160-т конвертеров в зависимости от хода продувки с различным уровнем образования вспененной шлакометаллической эмульсии в рабочем пространстве агрегата. Предложена сопряженная трехмерная математическая модель гидродинамических и массопереносных процессов в шлаковой и металлической фазах конвертера, которая может быть использована для изучения закономерностей циркуляционных процессов в полости конвертера при разных положениях двухъярусной фурмы, количестве сопел в нижнем и верхнем ярусах, углах наклона сопел, расходах кислорода через сопла и прочих технологических параметрах. Выполнено численное моделирование продувки металла в 160-т конвертере с использованием двухъярусной фурмы с 5-ю соплами Лаваля в нижнем наконечнике и 8-ю соплами в верхнем ряду. Полученные данные позволяют составить представление о характере движения металлической и газошлаковой фаз в конвертере.

The paper considers technological options of converter meltingwhen using two-level lances of different design. The formation peculiarities of metal and slag scaffold on the surface of two-level oxygen lances at top bath blowing of 160-ton converters, depending on the blowing progress with different levels of foamed slag-metal emulsion formation in the working space of the aggregate are reported. An adjoined three-dimensional mathematical model of hydrodynamic and mass-transferring processes in the slag and metal converter phases is proposed; it can be used for the study of circulation process regularities in the converter cavity at different positions of two-level lance, nozzle number in the upper and lower levels, nozzle angles of inclination, the oxygen consumption through the nozzle and other process parameters. Numerical simulation of metal blowing in a 160-ton converter with the use of two-level lance with fi ve Laval nozzles in the bottom tip and eight nozzles in the top row was carried out. These data form an idea of the nature of the metal and gas and slag phase in the converter.

конвертерверхняя кислородная продувкадвухъярусная фурмагидрогазодинамика ванныматематическая модельconverterthe top oxygen blowingtwo-level lancebath fl uid and gas dynamicsmathematical modelReferencesBaptizmanskii V.I., Kulikov V.O., Kitaev A.T. etc. The work of a 130-tonne convertor, equipped with two-level lances. Ekspressinformatsiya TsNII i TEI ChM. 1974. Series 6. Issue. 3, pp. 1‒14. (In Russ.).Baptizmanskii V.I., Kulikov V.O., Kitaev A.T. etc. The work of a 130-tonne convertor, equipped with two-level lances. Ekspressinformatsiya TsNII i TEI ChM. 1974. Series 6. Issue. 3, pp. 1‒14. (In Russ.).Kudrina A.P., Nikiforov B.V., Kitaev A.T. etc. Tuyere service of 130-tonne convertors when blowing metal with oxygen through a two-level lance. Ogneupory. 1974, no. 1, pp. 27‒32. (In Russ.).Kudrina A.P., Nikiforov B.V., Kitaev A.T. etc. Tuyere service of 130-tonne convertors when blowing metal with oxygen through a two-level lance. Ogneupory. 1974, no. 1, pp. 27‒32. (In Russ.).Rymarchyk N. Post combustion lances in Basic Oxygen Furnace (BOF) operations. Steelmaking Conference Proceedings. 1998, pp. 445–449.Rymarchyk N. Post combustion lances in Basic Oxygen Furnace (BOF) operations. Steelmaking Conference Proceedings. 1998, pp. 445–449.Chernyatevich A.G. Modern conditions and the improvement tendency of the blast device design for oxygen-convertor processes. Metallurgicheskaya i gornorudnaya promyshlennost’. 2002, no. 7, pp. 20–23. (In Russ.).Chernyatevich A.G. Modern conditions and the improvement tendency of the blast device design for oxygen-convertor processes. Metallurgicheskaya i gornorudnaya promyshlennost’. 2002, no. 7, pp. 20–23. (In Russ.).Chernyatevich A.G., Ganzer L.A., Aizatulov R.S., Uchitel’ L.M., Protopopov E.V., Ermolaev A.I. Combined blowing in convertors with the use of a two-level lance. Chernaya metallurgiya: Byul. NTI.1988, no. 7, pp. 48‒50.(In Russ.).Chernyatevich A.G., Ganzer L.A., Aizatulov R.S., Uchitel’ L.M., Protopopov E.V., Ermolaev A.I. Combined blowing in convertors with the use of a two-level lance. Chernaya metallurgiya: Byul. NTI.1988, no. 7, pp. 48‒50.(In Russ.).Stone R.P., Neith D., Koester S. Further process improvements at Severstal Sparrows Point via new technology implementation. AIS Tech 2009 Proceedings. 2009, no. 1, pp. 737‒747.Stone R.P., Neith D., Koester S. Further process improvements at Severstal Sparrows Point via new technology implementation. AIS Tech 2009 Proceedings. 2009, no. 1, pp. 737‒747.Velichko A.G., Chernyatevich A.G., Sigarev E.N. New tendency in the use of two-level lances for blowing of converter baths. Teoriya i praktika metallurgii. 2011, no. 5‒6 (2), pp. 12‒18. (In Russ.).Velichko A.G., Chernyatevich A.G., Sigarev E.N. New tendency in the use of two-level lances for blowing of converter baths. Teoriya i praktika metallurgii. 2011, no. 5‒6 (2), pp. 12‒18. (In Russ.).Samokhvalov S.E., Sokol A.N. A quasi-three-dimensional mathematical model of hydrodynamic processes in the cavity of a converter. Matematichne modelyuvannya. 2008, no. 2 (19), pp. 67‒70. (In Russ.).Samokhvalov S.E., Sokol A.N. A quasi-three-dimensional mathematical model of hydrodynamic processes in the cavity of a converter. Matematichne modelyuvannya. 2008, no. 2 (19), pp. 67‒70. (In Russ.).Sokol A.N. Mathematical modeling of hydrodynamic processes in the cavity of a converter during the upper blowing in a three-dimensional production. Vestnik Khersonskogo natsional’nogo tekhnicheskogo universiteta. 2010, no. 3 (39), pp. 448‒454. (In Russ.).Sokol A.N. Mathematical modeling of hydrodynamic processes in the cavity of a converter during the upper blowing in a three-dimensional production. Vestnik Khersonskogo natsional’nogo tekhnicheskogo universiteta. 2010, no. 3 (39), pp. 448‒454. (In Russ.).Chernyatevich A.G., Aizatulov R.S., Protopopov E.V., Uchitel L.M., Ganzer, L.A., Kabanov I.V. Combined metal blowing with inert gas delivery from above and through converter bottom. Steel in the USSR. 1989, vol. 19, no. 5, pp. 202-204.Chernyatevich A.G., Aizatulov R.S., Protopopov E.V., Uchitel L.M., Ganzer, L.A., Kabanov I.V. Combined metal blowing with inert gas delivery from above and through converter bottom. Steel in the USSR. 1989, vol. 19, no. 5, pp. 202-204.Chernyatevich A.G., Aizatulov R.S., Uchitel’ L.M. etc. Effectiveness increase of a bath combined blowing of a 160-tonne converter. Byulleten’ TsNII i TEI ChM. 1989, no. 12, pp. 48-49. (In Russ.).Chernyatevich A.G., Aizatulov R.S., Uchitel’ L.M. etc. Effectiveness increase of a bath combined blowing of a 160-tonne converter. Byulleten’ TsNII i TEI ChM. 1989, no. 12, pp. 48-49. (In Russ.).Chernyatevich A.G., Sigarev E.N., Chernyatevich I.V. Design development of a two-level lance and a blowing mode of the bath of 160-tonne converters of JSC «ArselorMittal Krivoy Rog» with its use. Teoriya i praktika metallurgii. 2012, no. 5‒6, pp. 76‒85. (In Russ.).Chernyatevich A.G., Sigarev E.N., Chernyatevich I.V. Design development of a two-level lance and a blowing mode of the bath of 160-tonne converters of JSC «ArselorMittal Krivoy Rog» with its use. Teoriya i praktika metallurgii. 2012, no. 5‒6, pp. 76‒85. (In Russ.).Chernyatevich A.G., Kovalenko A.G., Sushchenko A.V. Design development and improvement of a two-level lance for 160-tonne converters of JSC «EMZ». Teoriya i praktika metallurgii. 2014, no. 3‒6, pp. 20‒28. (In Russ.).Chernyatevich A.G., Kovalenko A.G., Sushchenko A.V. Design development and improvement of a two-level lance for 160-tonne converters of JSC «EMZ». Teoriya i praktika metallurgii. 2014, no. 3‒6, pp. 20‒28. (In Russ.).Chernyatevich A.G., Sigarev E.N., Protopopov E.V., Sheremet V.A., Chernyatevich I.V., Chubin K.I. Technology development of the slag lining application on the converter refractory lining by slag blowing with moving gas-powder jets. Izvestiya vuzov. Chernaya metallurgiya = Izvestiya – Ferrous Metallurgy. 2011, no. 2, pp. 15‒20. (I Russ.).Chernyatevich A.G., Sigarev E.N., Protopopov E.V., Sheremet V.A., Chernyatevich I.V., Chubin K.I. Technology development of the slag lining application on the converter refractory lining by slag blowing with moving gas-powder jets. Izvestiya vuzov. Chernaya metallurgiya = Izvestiya – Ferrous Metallurgy. 2011, no. 2, pp. 15‒20. (I Russ.).Feiler S.V., Protopopov E.V., Chernyatevich A.G. The improved technology of combined blowing of a converter bath with oxygen and indifferent gas. Izvestiya vuzov. Chernaya metallurgiya = Izvestiya – Ferrous Metallurgy. 2014, no. 4, pp. 43‒50. (In Russ.).Feiler S.V., Protopopov E.V., Chernyatevich A.G. The improved technology of combined blowing of a converter bath with oxygen and indifferent gas. Izvestiya vuzov. Chernaya metallurgiya = Izvestiya – Ferrous Metallurgy. 2014, no. 4, pp. 43‒50. (In Russ.).Samokhvalov S.E., Sokol A.M. Matematichne modelyuvannya perenosnikh protsesіv v konverterі [Mathematical modeling of the portable processes in a convertor]. Dnіprodzerzhins’k: DDTU, 2013. 99 p. (In Ukr.).Samokhvalov S.E., Sokol A.M. Matematichne modelyuvannya perenosnikh protsesіv v konverterі [Mathematical modeling of the portable processes in a convertor]. Dnіprodzerzhins’k: DDTU, 2013. 99 p. (In Ukr.).SamokhvalovS.E. Splitting method according to physical factors for the non-solenoidal movement of a gas-liquid medium. Inzhenerno-fi zicheskii zhurnal. 1998, no. 3. pp. 454‒459. (In Russ.).SamokhvalovS.E. Splitting method according to physical factors for the non-solenoidal movement of a gas-liquid medium. Inzhenerno-fi zicheskii zhurnal. 1998, no. 3. pp. 454‒459. (In Russ.).

The authors declare that there are no conflicts of interest present.