Theory and Technology of Metallurgical Production

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Zhenin E.V., Shapovalov A.N., Potapov I.M. SLAG REGIME OPTIMIZATION IN BLAST FURNACE SMELTING

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Abstract

The article presents the results of a study of the influence of slag regime parameters on the results of blast furnace smelting based on production data on the operation of a blast furnace with a useful volume of 1232 m3 using iron ore materials from the Kursk Magnetic Anomaly. It is shown that in order to achieve the best results in blast furnace smelting, the slag regime must be characterized by a minimum basicity, ensuring the achievement of a specified quality of pig iron. Based on an analysis of production data, recommendations are provided for optimizing the blast furnace slag regime in terms of basicity level, CaO/MgO ratio, and Al2O3/SiO2 ratio. Implementation of these recommendations will ensure improved blast furnace smelting results. In conditions of instability in the composition of iron ore charge and slag, to assess the chemical properties of slag, it is necessary to use the indicator of total basicity.

Keywords:

blast furnace smelting, productivity, coke consumption, hot metal desulphurization, sulphur distribution coefficient, slag basicity

Zhenin Evgeniy V. – Ph.D. (Eng.), Associate Professor of Metallurgical Technologies and Equipment Department, Novotroitsk branch of University of Science and Technology MISIS, Novotroitsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Shapovalov Alexey N. – Ph.D. (Eng.), Associate Professor of Metallurgical Technologies and Equipment Department, Novotroitsk branch of University of Science and Technology MISIS, Novotroitsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Potapov Ivan M. – 4th-year bachelor's student, Department of Metallurgy and Chemical Technology, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

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