{"id":1384,"date":"2020-12-09T11:50:58","date_gmt":"2020-12-09T09:50:58","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=1384"},"modified":"2023-08-10T21:21:03","modified_gmt":"2023-08-10T18:21:03","slug":"1384-2","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=1384&lang=en","title":{"rendered":"DOI: 10.52150\/2522-9117-2018-32-28-41"},"content":{"rendered":"

\"\"<\/a><\/strong><\/p>\n

Semenov Yuri Stanislavovich,<\/strong>\u00a0Ph.D. (Engin.), Senior Researcher, Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: yuriy.semenov.isi@gmail.com, ORCID 0000-0003-2299-5742
\nIe.I. Shumelchyk,<\/strong> Ph.D. (Engin.), Senior Researcher, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academic square Starodubova, 1, Dnipro, Ukraine,49107; e-mail: shei@ua.fm, ORCID 0000-0001-5350-6425
\nHorupakha Victor Vladimirovich,<\/strong> Researcher, Iron and Steel Institutenamedafter Z.I. Nekrasovofthe NAS ofUkraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail:
\nviktor.horupakha@gmail.com, ORCID 0000-0003-0531-1871<\/p>\n

Development of technology of pulverized coal injection in Ukraine’s blast<\/strong>
\nfurnaces in variable liquid and gas dynamic conditions<\/strong><\/h3>\n

Abstract.<\/strong> The aim of the work is to study the features of the use of pulverized coal (PCI) in the conditions of the blast furnace (BF) No. 5 of Metinvest Holding Ltd (Ukraine). The complex for the preparation and use of
\npulverized coal includes: a coal unloading and storage area; coal mixing section; coal sampling unit; plot of coal sorting and preparation; installation of drying and grinding coal raw materials, installation for the injection of pulverized coal into the BF. It is shown that the use of rational modes of loading and forming portions of the charge, the choice of rational slag mode allowed to increase the annual consumption of pulverized coal on average up to 130 kg \/ t of pig iron even in the conditions of variable load of BF and when working on coke of reduced quality. During the research, an operational monitoring of the condition of the lining of the BF shaft was carried out using the indications of the thermocouple of the lining and the body of the refrigerators. The determination of the thermal loads of the cooling system made it possible to develop measures to adjust the distribution of the charge components along the radius and circumference of the furnace. The temperature of the peripheral gas flow along the entire height of the furnace is reduced by an average of 13%, the irregularity of the peripheral temperature is reduced by 11%. The stability of the cooling system and the smooth operation of the blast furnaces.
\nKey words:<\/strong> blast furnace pulverized fuel, charge loading modes, lining condition, thermal loads<\/p>\n

Reference<\/strong>
\n1. Podkorytov A.L., Kuznetsov A.M., Dymchenko E.N. and etc. Technology for preparing coke for blast furnace smelting and its efficiency. Metallurgist, July 2009, Volume 53, Issue 7\u20138, pp. 460\u2013468.
\n2. Podkorytov A.L., Kuznetsov A.M., Zubenko A.V. and etc. Introduction of Pulverized-Coal Injection at Yenakiieve Iron and Steel Works. Steel in Translation, 2017. \u2013 Vol. 47, No. 5, pp. 313\u2013319.
\n3. KuznetsovA.M., Padalka V.P., Zubenko A.V. Ways of Improvement of Blast Furnace Heat Techniques. Stal’, 2007. \u2013 \u2116 11. \u2013 pp. 6\u20137.
\n4. Bol’shakov V.I. Use of blast furnace technology in Ukraine with pulverized coal injection. Digest of scientific works of the ISI NASU.
\nFundamental’nyye i prikladnyye problemy chernoy metallurgii. 2011. \u2013 Vypusk 23. \u2013 pp. 30\u201336.
\n5. Semenov Yu.S., Shumelchik E.I., Vishnyakov V.I. and etc. Model system for selecting and correcting charging programs for blast furnaces equipped with a bell-less charging apparatus. Metallurgist, January 2013, Volume 56, Issue 9-10, pp. 652-657.
\n6. Semenov Yu.S., Shumelchik E.I., Horupakha V.V. and etc. Using Thermal Probes to Regulate the Batch Distribution in a Blast Furnace with Pulverized-Coal Injection. Steel in Translation, 2017. \u2013 Vol. 47, No. 6, pp. 389\u2013393.
\n7. Semenov Yu.S., Mozharenko N.M., Gorupakha V.V. and etc. Effect of the Fuel, Raw Materials, and Process Conditions on the Behavior of Temperature Change in a Blast-Furnace Lining. Metallurgist, July 2015, Volume 59, Issue 3\u20134, pp. 290\u2013299.
\n8. Semenov Yu.S. , Shumel\u2019chik E.I., Gorupakha V.V. and etc. Monitoring Blast Furnace Lining Condition During Five Years of Operation. Metallurgist, July 2017, Volume 61, Issue 3\u20134, pp. 291\u2013297.
\n9. Semenov Yu.S. Temperature Distribution of the Gas Flux in Blast Furnaces. Steel in Translation, 2017. \u2013 Vol. 47, No. 7, pp. 473\u2013477.
\n10. Shyurman E., Gudenau G.V., Peters K.-KH. Investigation of a plastic zone at a blast furnace in a plant in Schwelgern. Chernyye metally, 1982. \u2013 \u2116 6\u2013 7. \u2013 pp. 9\u201314.
\n11. Shyurman E., Gudenau G.V., Peters K.-KH. Dynamic change in the shape and position of the plastic zone in the blast furnace. \u2013 Chernyye metally, 1982. \u2013 \u2116 15\/16. \u2013 pp. 17\u201320.<\/p>\n","protected":false},"excerpt":{"rendered":"

Semenov Yuri Stanislavovich,\u00a0Ph.D. (Engin.), Senior Researcher, Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: yuriy.semenov.isi@gmail.com, ORCID 0000-0003-2299-5742 Ie.I. Shumelchyk, Ph.D. (Engin.), Senior Researcher, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academic square Starodubova, 1, Dnipro, Ukraine,49107; e-mail: shei@ua.fm, ORCID 0000-0001-5350-6425 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1384","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1384","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1384"}],"version-history":[{"count":7,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1384\/revisions"}],"predecessor-version":[{"id":3824,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1384\/revisions\/3824"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}