The Reducibility of the Iron Ore Materials as Instrument of the Coke Consumption Decrease in the Blast Furnace Smelting

Abstract:

The technique of defining the minimum coke consumption in blast furnace smelting allows for the calculation of the reserve of coke economy on the basis of thermodynamic principles. In this reserve the constitutive role belongs to the reducibility of the iron ore materials (the agglomerate and pellets). In the present paper, the questions of the reduction kinetics of the iron ore materials and diffusion processes at reduction of iron from its oxides are considered. It is shown that the reducibility of the iron ore materials is the basic reserve of economy the scarce and expensive coke in the blast furnace smelting.

• Periodical: Defect and Diffusion Forum (Volumes 334-335)
• Pages: 375-380
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.334-335.375
• Online since: February 2013
• Authors: Andrey N. Dmitriev, Yu.A. Chesnokov, Galina Yu. Vitkina
• Keywords: Blast Furnace Process, Diffusion, Iron Ore Materials, Kinetic, Mathematical Models, Qualitative Characteristics, Reduction

References

[1] Kitaev B.I., Timofeev V.N., Bokovikov B.A. and others. Heat and mass exchange in dense bed.М.: Metallurgy, 1972. P. 432.

[2] Dmitriev A.N., Chesnokov Yu.A. Reduction Kinetics of IronOre Materials by Gases. Defect and Diffusion Forum, Vols. 283–286. 2008. p.45–52.

DOI: 10.4028/www.scientific.net/ddf.283-286.45

[3] Dmitriev A.N. Heat and mass transfer in blast furnace in conditions of non-uniform movement of material and gas / Proceedings of The First International Conference on Diffusion in Solids and Liquids DSL–2005, July 6–8, 2005, Aveiro, Portugal. 2005, Volume I. p.181–186.

[4] Chentsov A.V., Chesnokov Yu. A., Shavrin S.V. Logic-statistic balance model of blast furnace smelting process.M.: Science, 1991. p.92.

[5] Chentsov A.V., Chesnokov Yu. A., Shavrin S.V. Logic-statistic balance model of blast furnace smelting process. Ekaterinburg: Ural Branch of RussianAcademy of Sciences, 2003. p.164.

[6] Dmitriev A.N., ChesnokovYu.A., Arzhadeeva G. Yu. Mathematical Model of Forecasting of Coke Quality Indicators. Defect and Diffusion Forum, Vols. 297–301. 2010. p.1290–1294.

DOI: 10.4028/www.scientific.net/ddf.297-301.1290

[7] Dmitriev A.N., ChesnokovYu.A., Arzhadeeva G.Yu., LazebnayaYu.P. Mathematical Model of Forecasting the Iron Ore Materials and Coke Quality Indicators. Defect and Diffusion Forum, Vols. 312–315. 2011. p.1198–1203.

DOI: 10.4028/www.scientific.net/ddf.312-315.1198

[8] Dmitriev A.N., ShavrinS.V. Two-dimensional mathematical model of blast furnace process // Steel. 1996. № 12. p.7–13.

[9] Dmitriev A.N., ShavrinS.V. The investigation of temperature and velocity fields by means of two-dimensional mathematical model using new technical decisions // Steel. 1998. № 5. Pp. 5–8.

[10] Dmitriev A.N. Mathematical modeling of blast furnace process with practical decision / Fundamental and applied problems of ferrous metallurgy. Collected papers № 16.Ukraine, 2008.Pp. 117–128.

[11] Dmitriev A.N. The role of reducibility in achievement of the minimal coke consumption in the blast furnace smelting. Defect and Diffusion Forum, Vols. 258–260. 2006. p.91–100.

DOI: 10.4028/www.scientific.net/ddf.258-260.91