熔融还原炼铁工艺用耐火材料的研究进展  

Research progress on refractories for smelting reduction ironmaking process

作　　者：刘然 刘晏廷 高艳甲 邓勇 Liu Ran;Liu Yanting;Gao Yanjia;Deng Yong(不详;College of Metallurgy and Energy,North China University of Technology,Tangshan 063000,Hebei,China)

机构地区：[1]华北理工大学冶金与能源学院,河北唐山063000 [2]承德钢铁集团有限公司,河北承德067102

出　　处：《耐火材料》2024年第3期251-256,共6页Refractories

基　　金：国家自然科学基金(51674122);承德市科技计划(202205B060);华北理工大学研究生创新项目(2023B05)。

摘　　要：相较于高炉炼铁工艺,HIsmelt和Corex两种熔融还原炼铁工艺几乎不使用焦炭,且资源利用效率高,环保优势突出,但这两个工艺的熔渣中FeO含量普遍偏高,且技术成熟度和炉内反应机制的深入了解仍然不足,导致熔融还原炉的寿命普遍低于高炉的。分析了HIsmelt和Corex两大工艺的流程特点,总结了HIsmelt和Corex工艺用耐火材料的材料选择、维护和性能优化等方面的研究现状,指出了熔融还原炼铁工艺用耐火材料存在的问题及改进方向。Compared with the blast furnace ironmaking process,HIsmelt and Corex smelting reduction ironmaking processes hardly use coke and have high resource utilization efficiency and outstanding environmental advantages.However,the FeO content of the slag in these two processes is generally high,and the technical maturity and in-depth understanding of the reaction mechanism in the furnace are still insufficient,resulting in a lower lifespan of the smelting reduction furnace than that of the blast furnace.The process characteristics of HIsmelt and Corex processes were analyzed.The research status of material selection,maintenance and performance optimization of the refractories for HIsmelt and Corex processes was summarized.The existing problems and improving directions of the refractories for smelting reduction ironmaking were pointed out.

关 键 词：非高炉炼铁 耐火材料 HISMELT COREX 熔融还原 

分 类 号：TQ175[化学工程—硅酸盐工业]