ORALS

SESSION: IronFriAM2-R2	Assis International Symposium (9th Intl. Symp. on Advanced Sustainable Iron & Steel Making)
Fri. 1 Dec. 2023 / Room: Dreams 2
Session Chairs: Tateo Usui; Session Monitor: TBA

11:10: [IronFriAM207] OL
IMPROVEMENT OF BLAST FURNACE SMELTING USING DIGITAL TECHNOLOGIES
Andrey Dmitriev¹ ; Galina Vitkina² ; Maxim Zolotykh² ; ¹Russian Academy of Sciences - Ural, Ekaterinburg, Russian Federation; ²Institute of Metallurgy of Ural Branch of Russian, Amundsen st., Russia;
Paper Id: 10 [Abstract]

The role of mathematical models in improving the technology of blast furnace melting is shown [1]. Examples of new developments of the Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences in the field of digital models of blast furnace production are given, in particular, two-dimensional and three-dimensional mathematical models of the thermal state of various zones of the blast furnace [2, 3]. New developments in the field of analysis and control of various thermophysical and physico-chemical phenomena occurring in various zones of the blast furnace allow us to raise the technology and methods of conducting blast furnace melting to a fundamentally new level, allowing us to save fuel and energy resources. The possibility of using a digital model at a pace with the process when using sensor readings through the database management system of the blast furnace shop of the enterprise is shown.

References:
[1] A.N. Dmitriev. Mathematical modeling of the blast furnace process. Cambridge: Cambridge Scholars Publishing Ltd, 2019. – 330 p.
[2] A.N. Dmitriev, Zolotykh M.О., G.Yu. Vitkina Perfection of sinter, coke and blast furnace production by application of digital technologies within the frame of “Industry 4.0” concept. Ferrous Metallurgy. Bulletin of Scientific, Technical and Economic Information. 2020; 76(4):339-343.
[3] A.N. Dmitriev, Ya.M. Gordon, M.O. Zolotykh, G.Yu. Vitkina Mathematical Modeling and Practical Tasks Solution of Blast Furnace Smelting / AISTech 2016 Proceedings. © 2016 by AIST. P. 3141-3146.

SESSION: IronFriAM2-R2	Assis International Symposium (9th Intl. Symp. on Advanced Sustainable Iron & Steel Making)
Fri. 1 Dec. 2023 / Room: Dreams 2
Session Chairs: Tateo Usui; Session Monitor: TBA

11:35: [IronFriAM208] OL
IMPROVEMENT OF THE MATHEMATICAL MODEL OF HEAT EXCHANGE OF THE BLAST FURNACE PROCESS TAKING INTO ACCOUNT THE USE OF SYNTHESIS GAS
Andrey Dmitriev¹ ; Galina Vitkina² ; Nicolay Barbin³ ; Roman Alektorov³ ; ¹Russian Academy of Sciences - Ural, Ekaterinburg, Russian Federation; ²Institute of Metallurgy of Ural Branch of Russian, Amundsen st., Russia; ³Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation;
Paper Id: 24 [Abstract]

This paper considers the possibility of using and improving the mathematical model of heat exchange of the blast furnace process, taking into account the injection of synthesis gas (with different amounts of hydrogen in it) [1-3]. The analysis of existing models of heat exchange of a blast furnace is carried out and arguments are given justifying the need to take into account the characteristics of synthesis gas in the model. In a blast furnace, additional hydrogen in synthesis gas can be used as a partial replacement for coke, which will reduce the amount of carbon dioxide emissions into the atmosphere and increase the energy efficiency of the process. The use of synthesis gas in a blast furnace has a number of advantages and disadvantages. However, when analyzing the current environmental situation, it should be noted that the technology of using synthesis gas has great prospects. Calculations based on the improved model showed a more accurate assessment of the heat transfer characteristics in the blast furnace process when using synthesis gas. The results of the study can be used to effectively optimize the parameters of technological processes in blast furnace production.

References:
[1] A.N. Dmitriev. Mathematical modeling of the blast furnace process. Cambridge, UK, Cambridge Scholars Publishing Ltd. 209 p. ISBN 1-5275-4053-7, ISBN 978-1-5275-4053-8.
[2] A.N. Dmitriev, M.O. Zolotykh, G.Y. Vitkina, R.V. Alektorov, Yu.E. Burova. State Registration Certificate № 2022665099 IMMDP (Institute of Metallurgy Model of Domna Process). Applicant and patent holder: Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences (IMET UB RAS) (RU); № 2022663874; declaration: 22.07.2022; publ.: 09.08.2022.
[3] M.S. Yalunin, G.Y. Vitkina, A.N. Dmitriev, M.O. Zolotykh, R.V. Alektorov. Estimation of influence of gas-reducer with high hydrogen fraction on efficiency of blast furnace melting. Proceedings of X All-Russian Scientific-Practical Conference of Students, Postgraduate Students and Young Scientists "Thermal Engineering and Informatics in Education, Science and Production" with international participation, 19-20 May, 2022. Russia, Ekaterinburg, 2022. P. 185-190.