Fuel consumption and reduction kinetics in blast furnaces
- Authors: Korshikov G.V.1, Titov V.N.2, Mikhailov V.G.1, Karpov A.V.1
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Affiliations:
- Lipetsk State Technical University
- NLMK
- Issue: Vol 46, No 2 (2016)
- Pages: 125-131
- Section: Article
- URL: https://journals.rcsi.science/0967-0912/article/view/178572
- DOI: https://doi.org/10.3103/S0967091216020078
- ID: 178572
Cite item
Abstract
Statistical analysis of blast-furnace performance at NLMK between 2009 and 2014 reveals the thermodynamic and kinetic behavior of the reduction process. A method is developed for calculating the reducing potential of the hearth gas and for quantitative estimation of its utilization and the reaction rate. With the attainable productivity of 2.4–2.9 t/m day and fuel consumption 400–420 kg/t (in terms of total carbon), the properties of the hearth gases are sufficient to ensure near-optimal (around 70%) indirect reduction of Fe, but insufficient for batch heating in the shaft to the temperatures required for intense reduction.
About the authors
G. V. Korshikov
Lipetsk State Technical University
Author for correspondence.
Email: antonkrpv@rambler.ru
Russian Federation, Lipetsk
V. N. Titov
NLMK
Email: antonkrpv@rambler.ru
Russian Federation, Lipetsk
V. G. Mikhailov
Lipetsk State Technical University
Email: antonkrpv@rambler.ru
Russian Federation, Lipetsk
A. V. Karpov
Lipetsk State Technical University
Email: antonkrpv@rambler.ru
Russian Federation, Lipetsk