{"id":6457,"date":"2026-05-30T03:39:30","date_gmt":"2026-05-30T00:39:30","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=6457"},"modified":"2026-06-01T15:48:19","modified_gmt":"2026-06-01T12:48:19","slug":"doi-10-52150-2522-9117-2026-40-020","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=6457&lang=en","title":{"rendered":"DOI: 10.52150\/2522-9117-2026-40-020"},"content":{"rendered":"\n

H. Yu. Kriachko<\/strong>1<\/sup>, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0002-8773-508X
Ye. M. Siharov<\/strong>1,*<\/sup>, D. Sc. (Tech.), Professor, ORCID 0000-0002-8229-7877<\/p>\n\n\n\n

1 <\/sup>Dniprovsky State Technical University<\/em>
* <\/sup><\/em><\/a>Corresponding author: en_sigarev@ua.fm<\/em><\/p>\n\n\n\n

THE RELATIONSHIP BETWEEN BLAST FURNACE SMELTING INTENSITY, BURDEN COLUMN STRUCTURE AND RADIAL GAS DISTRIBUTION<\/h2>\n\n\n\n

Abstract. <\/strong>This study investigates the influence of smelting intensity on the formation of the burden column structure and radial gas distribution in blast furnace cross-sections. Based on the analysis of frozen burden columns obtained during furnace operation at different levels of smelting intensity, structural changes in the column caused by process intensification were identified. An increase in intensity leads to a higher upper part of the coke layer and a larger overall coke volume, while simultaneously increase the number of gas-conducting gaps. Furthermore, intensification diminishes arch formation in the plastic zone, there by lowering the resistance of the coke layer. A comparison of operating conditions in a 1754 m\u00b3 blast furnace at smelting intensities of 0.650 and 1.009 t\/m\u00b3\u00b7day (a 1.55-fold increase) demonstrated significant structural and gas-distribution changes: the non-uniformity coefficient of radial CO2<\/sub> concentration increased from 21\u201330%, while the degree of CO\u00ad2P<\/sub>\/CO2C<\/sub> underutilization was decreased from 0.89 to 0.65. These findings indicate that higher smelting intensity promotes a more stable burden structure, ensuring more efficient utilization of the furnace volume (1754 m\u00b3, Dniprovskiy Metallurgical Plant). For furnaces of various capacities, a correlation was observed between process intensification and the development of peripheral\u2013axial zones in radial gas distribution. Specifically, smelting intensity increased by 9% (per unit of coke consumption) in a 2000 m\u00b3 Cherepovets furnace and by 8% in a 1300 m\u00b3 Magnitogorsk furnace due to the activation of peripheral zones. It is emphasized that, under relatively stable external conditions, any intensification of the blast furnace process occurs through the opening of peripheral\u2013axial channels. The cross-sectional dimensions of these channels determine the thermal and reducing capacity of the gas flow and, ultimately, the efficiency of blast furnace operation.<\/p>\n\n\n\n

Key words:<\/strong> blast furnace, smelting intensity, structure, burden column, radial gasdistribution, peripheral-axial channels.<\/p>\n\n\n\n

For citation:<\/strong> Kriachko, H. Yu., & Siharov, Ye. M. (2026). The relationship between blast furnace smelting intensity, burden column structure and radial gas distribution. Fundamental and applied problems of ferrous metallurgy<\/em>, 40, 320-331. https:\/\/doi.org\/10.52150\/2522-9117-2026-40-020<\/a><\/p>\n\n\n\n

References<\/strong><\/p>\n\n\n\n

1. Narita, K., Sato, T., Maekawa, M., Fukihara, S., Kanayama, H., & Sasahara, S. (1980). Report on the analysis of the contents of Blast Furnace No. 1 of the Amagasaki Plant. Tetsu to Hagane<\/em>, 13, 1975\u20131984<\/p>\n\n\n\n

2. Gudenau, H.-W., Sasabe, M., & Kraibikh, K. (1977). Research on cooled furnaces in Japan, Ferrous Metals<\/em>, 6\u20137, 13\u201317<\/p>\n\n\n\n

3. Kriachko, H. Yu., Barsukov, E. E., Masterovenko, E. L., & Sedykh, A. A. (2015). Quantitative assessment of formations in the shaft column of blast furnaces Collection of Scientific Papers of DSTU,<\/em> 2(27), 30\u201338<\/p>\n\n\n\n

4. Bochka, V. V. (1997). Influence of smelting intensity on the main performance indicators of blast furnaces. Metallurgical and Mining Industry<\/em>, 4, 9\u201312<\/p>\n\n\n\n

\u0420\u0443\u043a\u043e\u043f\u0438\u0441 \u043d\u0430\u0434\u0456\u0439\u0448\u043e\u0432 \u0434\u043e \u0440\u0435\u0434\u0430\u043a\u0446\u0456\u0457 \/ Received  23.11.2025<\/em>
\u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u043d\u043e \u0434\u043e \u0434\u0440\u0443\u043a\u0443 \/ Accepted 28.05.2026<\/em>
\u041e\u043f\u0443\u0431\u043b\u0456\u043a\u043e\u0432\u0430\u043d\u043e \/ Published 30.05.2026<\/em><\/p>\n\n\n\n

\"\"<\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"

H. Yu. Kriachko1, Ph. D. (Tech.), Assoc. Prof., ORCID 0000-0002-8773-508XYe. M. Siharov1,*, D. Sc. (Tech.), Professor, ORCID 0000-0002-8229-7877 1 Dniprovsky State Technical University* Corresponding author: en_sigarev@ua.fm THE RELATIONSHIP BETWEEN BLAST FURNACE SMELTING INTENSITY, BURDEN COLUMN STRUCTURE AND RADIAL GAS DISTRIBUTION Abstract. This study investigates the influence of smelting intensity on the formation of the burden column structure and radial gas distribution […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6457","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6457","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6457"}],"version-history":[{"count":2,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6457\/revisions"}],"predecessor-version":[{"id":6943,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/6457\/revisions\/6943"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}