Preliminary numerical simulation of shaft process for DRI production
Based on mass and energy balances of gas and solid phases,a one-dimensional kinetic model of shaft furnace process for DRI production was developed.The model was able to satisfactorily reproduce the data from Gilmore Steel Corporation.The calculation results show that,the temperature difference between solid and gas is small in the most part of reduction section of MIDREX(R)shaft furnace.For shaft of 9.75 m height,the wustite reduction occurs in the lower part of 9.0 m,while the hematite and magnetite reduction occurs in the upper part of 0.5 m and 2.0 m,respectively.In the lower part of 2.75 m in shaft depth,the hydrogen concentration decreases rapidly,while the carbon monoxide concentration variation is small.In the upper part of 2.0 m in shaft depth,the hydrogen and carbon monoxide concentrations decrease rapidly.In the rest part,the hydrogen and carbon monoxide concentrations decrease smoothly.
shaft furnace direct reduction iron numerical simulation
Xu Hui Zou Zongshu Zhou Yusheng Li Zhaoyi
College of Materials and Metallurgy,Northeastern University,Shengyang 110004,China Baosteel Research Institute,Baoshan Iron & Steel Co.,Ltd.,Shanghai 201900,China
国际会议
上海
英文
113-117
2008-09-26（万方平台首次上网日期，不代表论文的发表时间）