摘要
安源钢铁1080 m^(3)高炉因入炉原燃料质量波动大、炉况稳定性差、富氧率低等因素导致冶炼强度较小,产铁量较低,因此实行了富氧强化冶炼实践。本文分析了富氧率提高对高炉增加产铁量、提高喷煤比的积极作用,并针对高炉生产过程中出现的渣铁排放不尽、炉缸环碳温度上升、冷却壁破损加剧等问题,提出了应对措施。通过增加出铁炉次、增设固定罐位,提高喷煤比至155~160 kg,调整上下部操作制度,针对不同炉体位置采用不同的冷却方式,加强对炉缸环碳侵蚀的监护,配置风口成像系统和红外测温等措施,高炉稳定顺行,产铁量有所提升。
Anyuan Iron and Steel 1080 m^(3)blast furnace implements the practice of oxygen-enriched enhanced smelting due to large fluctuations in the quality of raw fuel,poor stability of furnace conditions,and low oxygen enrichment rate,resulting in low smelting strength and low iron production.The positive effects of increasing oxygen enrichment rate on increasing iron production and coal injection ratio of blast furnace was analyzed,and countermeasures were put forward to solve the problems of inexhaustible slag iron emissions,rising carbon temperature of furnace rings,and aggravation of cooling wall damage in the production process of blast furnace.By increasing the number of iron furnaces,adding fixed tank positions,increasing the coal injection ratio to 155~160 kg,adjusting the upper and lower operating systems,adopting different cooling methods for different furnace body positions,strengthening the monitoring of carbon erosion in the furnace cylinder ring,and configuring air outlet imaging system and infrared temperature measurement,the blast furnace is stable and smooth,and the iron production has been improved.
作者
高占锋
廉树杰
曾玲
Gao Zhanfeng;Lian Shujie;Zeng Ling(Pingxiang Pinggang Anyuan Iron and Steel Co.,Ltd.,Pingxiang 337000,Jiangxi)
出处
《河北冶金》
2023年第6期49-53,共5页
Hebei Metallurgy
关键词
高炉
富氧率
煤气流
喷煤比
热制度
blast furnace
oxygen enrichment
coal gas stream
coal injection ratio
thermal regime
