摘要
为降低氧气高炉炼铁工艺流程中循环煤气分离和煤气预热成本,提出氧气高炉喷吹气化炉重整煤气炼铁工艺流程.采用分析方法对该工艺过程和传统高炉炼铁工艺过程的主要指数进行计算和评价分析,结果表明:在传统高炉工艺中,高炉单元和整体系统的损失(指每吨铁水,下同)分别为0.911 GJ/t和1.636 GJ/t;在氧气高炉喷吹气化炉重整煤气工艺中,高炉单元和整体系统的损失分别为0.298 GJ/t和0.826 GJ/t;另外,传统高炉和氧气高炉喷吹气化炉重整煤气工艺系统的效率分别为83%和91%.该工艺能够实现冶金和化工行业的联合生产,对于促进工业联产具有重要意义.
To reduce the cost of circulating gas CO2 separation and gas preheating in the process of oxygen blast furnace ironmaking,this paper put forward the technological process of remaking gasifier for oxygen blast furnace injection gasifier.Based on the method of exergy analysis,the main process exergy indices of traditional blast furnace(TBF)and OBF-RGG were calculated and evaluated.The results show that the exergy loss of the blast furnace unit and the whole system in TBF process are 0.911 GJ/tHM and 1.636 GJ/tHM,respectively;the exergy loss of the blast furnace unit and the whole system in OBF-RGG process are 0.298 GJ/tHM and 0.826 GJ/tHM,respectively;in addition,the exergy efficiency of the TBF and OBF-RGG processes are 83%and 91%,respectively.This process can realize joint production in metallurgical and chemical industries,and is of great significance for promoting industrial coproduction.
作者
李长乐
薛庆国
董择上
王广
赵世强
王静松
LI Changle;XUE Qingguo;DONG Zeshang;WANG Guang;ZHAO Shiqiang;WANG Jingsong(State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China)
出处
《有色金属科学与工程》
CAS
2018年第2期6-12,共7页
Nonferrous Metals Science and Engineering
基金
国家重点研发计划资助项目(2016YFB0601304)
关键词
氧气高炉
气化炉
分析
火用指数
oxygen blast furnace
gasifier
exergy analysis
exergy indices
