Technology of Blast-Furnace Smelting of Iron using Pulverized Coal at the NLMK

被引：0
作者：
S. V. Filatov
V. S. Listopadov
A. Yu. Sorokin
S. V. Myasoedov
V. N. Titov
S. A. Zagainov
机构：
[1] Novolipetsk Steel,
[2] Lipetsk State Technical University,undefined
[3] Ural Federal University named after the first President of Russia B. N. Yeltsin,undefined
来源：
Metallurgist | 2020年 / 64卷
关键词：
blast furnace; coke; pulverized coal; natural gas; smelting rate; total carbon consumption; pressure differential;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The problems of using pulverized coal to save coke during iron smelting in the NLMK blast furnaces are considered. The iron smelting technology was implemented in two stages: (i) commissioning of the pulverized-coal preparation and charging system and (ii) selection of charging system and blast conditions that ensure the maximum utilization of pulverized coal and required output. An analysis of the dynamics in the consumption of coke and fuel additives showed that the total fuel carbon consumption has decreased, despite the difference in the amount of carbon charged with natural gas and pulverized coal. The calculations based on a mathematical model showed that with increase in the consumption of pulverized coal and decrease in the consumption of natural gas, the gas-to-coke replacement ratio increases by 0.09 kg of coke per 1 m3 of natural gas on average.
引用
收藏
页码：381 / 387
页数：6
相关论文
共 45 条
[1]  
Katunin VV(2019)Basic performances of the Russian iron and steel industry in 2018 Byul. NTiEI Chern. Metallurg. 3 293-315
[2]  
Zinov’ev NG(2010)Smelting low-silica hot metal at OAO NTMK Steel in Transl. 40 443-445
[3]  
Petrakova TM(2016)Optimization strategies for pulverized coal injection into the blast furnace Stahl und Eisen. 136 39-47
[4]  
Ivanova IM(2017)Analysis of the ways to increase the energy efficiency of iron smelting in blast furnaces Izv. VUZov, Chern. Metallurg. 60 637-642
[5]  
Filatov SV(2014)Initial results from the use of pulverized-coal fuel in blast furnaces Metallurgist 58 761-766
[6]  
Kirichkov AA(2018)Improving the blast-furnace smelting technology using pulverized coal in the blast furnaces of Shop 1 of NLMK Chern. Metallur. 7 33-39
[7]  
Mikhalev VA(2019)Implementation of the technology of iron smelting using pulverized coal in Shop 2 of NLMK Chern. Metallurg. 75 803-810
[8]  
Zagainov SA(2018)Methods for calculation of the pulverized coal to coke replacement ratio Vestn. Lipetskogo Gos. Tekhn. Univ., No. 3 83-87
[9]  
Filippov VV(2017)Use of sinter and coke fines during intensive operation of blast furnaces Chern. Metallurg. 5 28-33
[10]  
Smirnov LA(2016)Indirect reduction in blast-furnace smelting Steel in Transl. 46 583-588
12345