高炉休复风操作的关键技术  

KEY TECHNOLOGIES OF BLAST FURNACE RECOVERY OPERATION

作　　者：刘欢 宁晓均 王振阳[1] 张建良[1] 李瑞雨 兰大伟 Liu Huan;Ning Xiaojun;Wang Zhenyang;Zhang Jianliang;Li Ruiyu;Lan Dawei(School of Metallurgy and Ecological Engineering, Beijing University of Science and Technology, Bejing 100083)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《河北冶金》2022年第4期15-18,50,共5页Hebei Metallurgy

基　　金：国家自然科学基金青年基金资助项目(51904026)。

摘　　要：高炉休复风是高炉冶炼过程中的阶段性常规操作,然而部分高炉因休复风操作不当而出现炉况长期波动,无法快速达产的现象,因此,高炉休复风制度的优化改良成为研究热点。本文通过对钢铁企业不同类型的高炉休复风操作制度与炉况状态进行总结分析,发现高炉休复风操作难点在于高炉休风后炉缸热量的控制、复风过程中炉况恢复进度的把控以及复风后全炉压差的控制。通过借鉴钢铁企业已有的优秀操作经验,期望可以为优化高炉休复风操作制度提供一定指导,使高炉从休风迅速恢复至正常冶炼状态。Blast furnace ventilating is a regular operation in the smelting process.However,some blast furnace conditions fluctuate for a long time due to improper operation of blast furnace ventilating.Therefore,the optimization and improvement of blast furnace ventilating system has become a research hotspot.Through summarizing and reviewing the operation system and condition of blast furnace in different types of blast furnace in iron and steel enterprises,it is found that the difficulty of blast furnace ventilating operation lies in the control of heat of hearth after ventilating,the control of the progress of furnace condition restoring in the process of ventilating and the control of the pressure difference of whole furnace after ventilating.By drawing from the existing excellent operation experience of iron and steel enterprises,it is expected to provide theoretical and data support for solving the above operation difficulty and optimizing the operation system of blast furnace wind-off and wind-back,so as to achieve the purpose of rapidly restoring the blast furnace from wind-off to normal smelting state.

关 键 词：高炉 休复风 操作制度 炉缸 压差 

分 类 号：TF544[冶金工程—钢铁冶金]