高炉透气性影响因素研究现状  

Review of influencing factors on gas permeability in blast furnaces

作　　者：潘玉柱 蒋友源[1] 罗大军 章鹏程 杨礼平[1] 王经鑫 梁高铭[1] PAN Yuzhu;JIANG Youyuan;LUO Dajun;ZHANG Pengcheng;YANG Liping;WANG Jingxin;LIANG Gaoming(Hunan Valin Xiangtan Iron and Steel Co.,Ltd.,Xiangtan 411100,Hunan,China)

机构地区：[1]湖南华菱湘潭钢铁有限公司炼铁厂,湖南湘潭411100

出　　处：《江西冶金》2022年第4期22-30,共9页Jiangxi Metallurgy

摘　　要：高炉是一个气-固-液三相逆流的反应器,高炉料柱的透气性对高炉生产至关重要,但高炉内部各个区域的透气性影响因素不同,除了料柱本身的性质,鼓风参数、渣铁排放、热制度等高炉的具体操作亦会对高炉的透气性产生影响。文中综合阐述了高炉内各个区域和操作参数对高炉透气性的影响,系统地指出高炉各个区域和操作因素对透气性影响的限制性环节,旨在提供异常炉况诊断和保障高炉稳定顺行的操作思路。通过综合前人的研究成果,认为提高炉料冷、热和反应前后强度,提高炉料粒度和均匀性,降低粉末入炉,控制有害元素入炉,提高品位、降低渣量的同时控制合理的熔渣成分,保障合理的热制度、装料制度、出铁制度和鼓风制度以获得有利于透气性的煤气分布,从而提高高炉的透气性能。A blast furnace is a gas-solid-liquid three-phase countercurrent reactor. The gas permeability of the blast furnace material column is very important for blast furnace production. The factors affecting the gas permeability of each area are different. In addition to the nature of the material column itself, the specific operation of the blast furnace, such as the blast parameters, slag and iron discharge, and heat system also affect the gas permeability of the blast furnace. This paper comprehensively illustrates the influence of various areas and operating parameters in the blast furnace on the gas permeability of the blast furnace and systematically offers the restrictive links of the influence of various areas and operating factors of the blast furnace on the gas permeability, aiming to provide both abnormal furnace condition diagnosis and operation ideas of ensuring the stability of the blast furnace. Based upon the research results of predecessors, the major measures to improve the gas permeability of the blast furnace are as follows: to improve the strength degree of the cold and heat of the burdens and the strength before and after the reaction, to improve the particle size and uniformity of the burdens, to reduce the powder entering the furnace and to control the harmful elements entering the furnace, to improve the grade of iron ore, to reduce the amount of slag and to control the reasonable composition of the slag to ensure a reasonable heating system, a charging system, a tapping system and a reasonable blast system to obtain gas distribution that is conducive to permeability, thereby improving the permeability of blast furnaces.

关 键 词：高炉 透气性 炉料 鼓风参数 

分 类 号：TF543.1[冶金工程—钢铁冶金]