直接还原铁生产中的富氢冶金技术探讨  

Discussion on hydrogen⁃rich metallurgical technology in direct reduced iron production

作　　者：刘何美 谢朝明 LIU Hemei;XIE Chaoming(Zhongye Changtian International Engineering Co.,Ltd.,Changsha 410012,Hunan,China)

机构地区：[1]中冶长天国际工程有限责任公司,湖南长沙410012

出　　处：《工程建设》2024年第12期1-7,共7页Engineering Construction

基　　金：湖南省科技创新计划资助项目(2024ZL6020)。

摘　　要：直接还原铁生产作为钢铁冶炼的一个重要环节,需要探索和应用低碳、环保的冶炼技术。富氢冶金技术作为一种新兴的炼铁技术,具有资源利用率高、环境污染小等优点,近年来得到了广泛关注。本文通过介绍富氢冶金技术原理,系统分析国内外富氢冶金技术及研究进展,总结富氢冶金技术发展趋势,针对富氢冶金技术目前在工业化应用中存在的问题从高品位铁矿资源匮乏、还原剂的选择难、技术研发难点多、可再生能源制绿氢与冶金流程耦合难度大等4个方面进行分析,提出优化富氢制备工艺、优化还原工艺参数、深化技术创新、过程控制与优化等4个优化策略,以期为富氢冶金技术的发展和工业化推广提供参考。As an important part of steel smelting,direct reduced iron production requires the exploration and application of low⁃carbon and environmentally friendly smelting technologies.As an emerging ironmaking technology,hydrogen⁃rich metallurgy technology has the advantages of high resource utilization rate and low environmental pollution,and has received extensive attention in recent years.In this paper,the principle of hydrogen⁃rich metallurgy technology is introduced,the hydrogen⁃rich metallurgical technology and research progress at home and abroad are systematically analyzed,the development trend of hydrogen⁃rich metallurgy technology is summarized,and the problems existing in the industrial application of hydrogen⁃rich metallurgy technology are analyzed from such 4 aspects as lack of high⁃grade iron ore resources,selection of reducing agent,many difficulties in technology research and development,and difficulty in coupling green hydrogen production from renewable energy with metallurgical process.In order to provide reference for the development and industrialization of hydrogen⁃rich metallurgical technology,the 4 optimization strategies are proposed,including optimizing the hydrogen⁃rich preparation process,optimizing the reduction process parameters,deepening technological innovation,and controlling and optimizing process.

关 键 词：富氢冶金 直接还原铁 低碳 减排 竖炉 氢气 

分 类 号：TF55[冶金工程—钢铁冶金]