{"id":1865,"date":"2021-05-17T10:06:10","date_gmt":"2021-05-17T08:06:10","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=1865"},"modified":"2023-08-12T22:02:11","modified_gmt":"2023-08-12T19:02:11","slug":"1865-2","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=1865&lang=en","title":{"rendered":"DOI: 10.52150\/2522-9117-2020-34-47-61"},"content":{"rendered":"

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Chaika Alexey Leonidovich,<\/strong> PhD, Senior Researcher, Head of Department, Iron and Steel Institute named after Z.I.\u00a0Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: \u00a0chayka777@list.ru<\/a>; ORCID 0000-0003-1678-2580<\/p>\n

Kornilov Bogdan Vladimirovich, <\/strong>PhD (Engin.), Senior Researcher, Iron and Steel Institute named after Z.I.\u00a0Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: alesan2209@yandex.ua<\/a>; ORCID 0000-0002-5544-3023<\/p>\n

Moskalina Andrey Alexandrovich, <\/strong>Researcher, Iron and Steel Institute named after Z.I.\u00a0Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: andreimp250@inbox.ru<\/a>; ORCID 0000-0001-9552-2853<\/p>\n

Lebid Vitaliy Vasyliovych, <\/strong>PhD (Engin.), Senior Researcher, Iron and Steel Institute named after Z.I.\u00a0Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; ORCID 0000-0003-3938-3785<\/p>\n

Dzhigota Marina Georgievna, Senior Engineer,<\/strong> Iron and Steel Institute named after Z.I.\u00a0Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; ORCID 0000-0003-3062-5127<\/p>\n

Karikov Sergiy <\/strong>Anatoliyovich, Head of the Blast Furnace Shop, PrAT \u00abMK \u00ab Azovstal\u00bb<\/p>\n

Heat power analysis of performance indicators blast furnace No. 3 PJSC\u00a0\u00abAZOVSTAL IRON & STEEL WORKS\u00bb with natural gas and pulverized coal after oven overhaul of blast furnace<\/strong><\/h3>\n

Abstract.<\/strong> In 2019, according to the technological assignment of the Iron and Steel Institute (ISI), the reconstruction of the blast furnace (BF) No. 3 of PJSC \u00abAZOVSTAL IRON & STEEL WORKS\u00bb was carried out for the long-term energy-efficient production of pig iron with using pulverized coal (PCI) up to 180 kg\/t with a change in the profile according to the technological task of ISI. The design of the BF No. 3 profile corresponds to the best world solutions for furnaces efficiently working with pulverized coal, and the furnace was equipped with five mathematical models of ISI (\u00abHorn\u00bb, \u00abMine\u00bb, \u00abHeat losses\u00bb, \u00abLoading\u00bb, \u00abSlag\u00bb). Specialists of ISI developed recommendations and carried out technological support for the operation of BF No.3, which made it possible to increase the removal of pig iron from the design 2.1 t\/m3<\/sup> to 2.27 t\/m3<\/sup> and achieved the best indicators in the blast furnace workshop in terms of coke and equivalent fuel consumption by increasing the productivity of the burden system, using a rational burden loading matrix, using a rational pressure drop in the furnace, which allows the maximum use of the power of the blower machine, forcing the furnace with technical oxygen and other measures. Using the heat power model of I.D. Semikin was made a comparative analysis of the best for six months indicators of thermal performance and technical and economic indicators of BF \u21163 of PJSC \u00abAZOVSTAL IRON & STEEL WORKS\u00bb, with a volume of 1800 m3<\/sup> before (work with natural gas) and after major repairs (work with pulverized coal and with natural gas). Using the exergy method of analysis based on the results of calculating heat and power balances, a comparative analysis of changes in the energy efficiency and environmental indicators of BF No. 3 before and after its major repairs was carried out. It shown the expediency of integrated mastering of operating modes and modernization of the blast furnace for long-term and energy-efficient operation with pulverized coal. It disclosed the mechanism for improving the technical and economic indicators of work after major repairs by changing the heat and power conditions of the blast furnace. Its shown Improvement of exergy efficiency factor and environmental performance of BF No. 3 after major repairs.
\nKeywords:<\/strong> blast furnace, pulverized coal, natural gas, productivity, coke consumption, energy efficiency, exergy, efficiency, environmental indicators<\/p>\n

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Chaika Alexey Leonidovich, PhD, Senior Researcher, Head of Department, Iron and Steel Institute named after Z.I.\u00a0Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: \u00a0chayka777@list.ru; ORCID 0000-0003-1678-2580 Kornilov Bogdan Vladimirovich, PhD (Engin.), Senior Researcher, Iron and Steel Institute named after Z.I.\u00a0Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, […]<\/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-1865","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1865","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=1865"}],"version-history":[{"count":4,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1865\/revisions"}],"predecessor-version":[{"id":3938,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/1865\/revisions\/3938"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}