Distribution of reformed coke oven gas in a shaft furnace

作     者：Xin Jiang Jia-xin Yu Lin Wang Dong-wen Xiang Qiang-jian Gao Hai-yan Zheng Feng-man Shen Xin Jiang;Jia-xin Yu;Lin Wang;Dong-wen Xiang;Qiang-jian Gao;Hai-yan Zheng;Feng-man Shen

作者机构：School of MetallurgyNortheastern UniversityShenyang 110819LiaoningChina Department of Mechanical EngineeringShenyang Institute of EngineeringShenyang 110136LiaoningChina 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2020年第27卷第12期

页      面：1382-1390页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：The financial supports of the National Natural Science Foundation of China(NSFC 51874080,NSFC 62001312,NSFC 51774071 and NSFC 51974073) Natural Science Foun-dation of Liaoning(2019-MS-132)are much appreciated 

主　　题：Direct reduction Shaft furnace Coke oven gas Gas distribution Pressure ratio Reducing gas Cooling gas 

摘      要：In recent years, the reformed coke oven gas (COG) was proposed to be used as reducing gas in a shaft furnace. A mathematical model of gas flow based on the reformed COG was built. The effects of the pressure ratio of reducing gas to cooling gas (k) on the gas distribution in the shaft furnace were investigated. The calculation results show that k is an important operation parameter, which can obviously affect the gas distribution in the shaft furnace. The value of k should be compromised. Both too big and too small k values are not appropriate, and the most reasonable value for k is 1:*** this condition, the utilization coefficient of reducing gas, the utilization coefficient of cooling gas and the coefficient of upward gas are 0.94, 0.92 and 1.03, respectively. Based on the validation of physical experiments, the calculated values of the model agreed well with the physical experimental data. Thus, the established model can properly describe the reformed COG distribution in an actual shaft furnace.