Fuel consumption and reduction kinetics in blast furnaces

被引：2
|
作者：
Korshikov G.V. [1 ]
Titov V.N. [2 ]
Mikhailov V.G. [1 ]
Karpov A.V. [1 ]
机构：
[1] Lipetsk State Technical University, Lipetsk
[2] NLMK, Lipetsk
来源：
Steel in Translation | 2016年 / 46卷 / 2期
关键词：
blast furnace; hearth gas; mineral oxygen; productivity; reducing potential; reduction rate; smelting rate;
D O I：
10.3103/S0967091216020078
中图分类号：
学科分类号：
摘要：
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. © 2016, Allerton Press, Inc.
引用
收藏
页码：125 / 131
页数：6
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