Analysis of the Influence of the Degree of Reduction of Iron Ore Materials on the Shape and Location of the Cohesion Zone in a Blast Furnace

Abstract:

The paper considers the theoretical foundations of softening of iron ore materials in a blast furnace (the so-called ‘cohesion zone’). The dependences of the temperature range of softening of iron ore materials (the temperatures of the beginning and ending of softening) on the degree of reduction are calculated and experimentally obtained. Physical modelling of the softening process of reduced iron ore materials was carried out using the Russian State Standard No 26517-85. The results of calculations of the location and shape of the cohesion zone in the blast furnace for iron ore materials with different metallurgical characteristics are presented.

• Periodical: Defect and Diffusion Forum (Volume 413)
• Pages: 157-166
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.413.157
• Online since: December 2021
• Authors: Andrey N. Dmitriev*, Galina Yu. Vitkina, Roman V. Alektorov
• Keywords: Blast Furnace Smelting, Cohesion Zone, Degree of Reduction, Iron Ore Materials, Softening

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