热风炉外均压智控节能技术及应用效果  

Application of Intelligent Control Technology of External Pressure Equalization of Hot Stove

作　　者：王长春 汪小龙 汪朋 WANG Changchun;WANG Xiaolong;WANG Peng(Beijing KSS Technology Co.,Ltd.,Beijing 100055,China)

机构地区：[1]北京卡卢金热风炉技术有限公司,北京100055

出　　处：《炼铁》2024年第5期39-44,共6页Ironmaking

摘　　要：热风炉外均压智控节能技术由外均压换炉技术和全自动智能控制系统组成,可完全消除换炉的风压波动,实现热风炉系统“一键式”全自动运行。其创新点,一是采用外置高压气罐取代鼓风机为热风炉充压;二是采取“小压差、大流量”控制策略,通过动态调节方法实现了对热风炉充压全过程的压差控制,保障充压过程安全可靠,充压时间缩短至2~4min;三是建立与热风炉工作制度匹配协调的全自动充压换炉工艺;四是建立全流程自动操作模式,由高炉炉长确定风温目标全自动运行,降低人为干预和无效操作。1260m^(3)高炉和5500m^(3)高炉应用效果表明,风温提高20~50℃,同等条件下煤气消耗量降低5%~10%。The intelligent control technology of external pressure equalization of hot stove is energy saving,and it consist of two parts:external pressure equalization technology for stove switchover and fully automatic intelligent control system.This technology can eliminate the fluctuation of air pressure during switchover of the stove and enable fully automatic operation of stove system through"one-button"action.The innovation of this technology focuses on(1)replacing the blower by the ex-ternal high-pressure air tank to boost the stove;(2)dynamically controlling the differential pressure during stove boosting under the control strategy of"small pressure difference,high flowrate"so as to ensure safe and reliable boosting process;the boosting time is shortened to 2-4min;(3)setting up a fully automatic process of stove boosting and stove switchover that co-ordinates with the stove working system;(4)establishing a whole process automatic operation mode based on the external pressure equalization technology so as to enable the ironmaking system to run automatically according to the blast temperature entered by the furnace director,and minimize human intervention and ineffective operation.The application result of this technology on 1260m^(3)and 5500m^(3) BFs shows that when the air temperature is increased by 20-50℃,the gas consumption is reduced by 5%-10%under the same parameter conditions.

关 键 词：热风炉 充压换炉 外均压 智能控制 风温 煤气消耗量 

分 类 号：TF544[冶金工程—钢铁冶金]