重庆大学学报2016，Vol.39Issue(4)：57-66,10.DOI:10.11835/j.issn.1000-582X.2016.04.008
氢还原竖炉的模拟分析
Simulation analysis on hydtogen teduction shaft futnace
摘要
Abstract
Absttact:A mathematical model for ore reduction mainly by H2 in shaft furnace was established by a set of conservation equations of materials and heat,and other constraint conditions.All consumptions and productions could be calculated if the composition of N2 ,the value of V(CO)/V(H2 ),the metallization ratio of DRI,the temperature of input gas,etc.were given.It shows that the input gas can be reduced from 1 650 N·3 for H2 reduction to 1 200 N·m3 by CO addition.When the volume ration of CO to H2 V(CO)/V(H2 )was 0.6,the energy utilization ratio of shaft furnace was maximum without N2 addition;when V(CO)/V(H2)= 0.3,the optimum composition of N2 was 11%;whenV(CO)/V(H2)= 0,the optimum composition of N2 was 25%.The N2 addition may result in H2 consumption,but could not reduce the total input gas.The simulation will provide reference to process design,operation and energy saving.关键词
DRI/氢还原竖炉/氮气兑入/CO 兑入/能量利用Key words
DRI/hydrogen reduction shaft furnace/N2 addition/CO addition/energy utilization分类
矿业与冶金引用本文复制引用
王成善,时艳文,李丹丹,冯鹏飞,穆小静..氢还原竖炉的模拟分析[J].重庆大学学报,2016,39(4):57-66,10.基金项目
国家自然科学基金资助项目（50704040）；重庆市自然科学基金资助项目（CSTC2009BB4197）。Supported by the National Natural Science Foundation of China（50704040）and Natural Science Foundation of Chongqing（CSTC2009BB4197）． （）
