【摘 要】
：
太钢3号高炉在炉腰至炉身下部安装了4层铜冷却壁,由于铜冷却壁的高导热性,使3号高炉在定检恢复时,多次出现渣皮脱落,热负荷波动频繁,严重时出现炉凉、崩料和煤气流失常等事故
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太钢3号高炉在炉腰至炉身下部安装了4层铜冷却壁,由于铜冷却壁的高导热性,使3号高炉在定检恢复时,多次出现渣皮脱落,热负荷波动频繁,严重时出现炉凉、崩料和煤气流失常等事故。针对定检后炉况难恢复的特点,3号高炉通过制订详细的定检休、送风计划,在送风后按目标节点恢复风、氧量,并对喷煤、风温、燃料比、渣铁热量和渣铁排放等进行量化控制,实现了定检35h以上,20~24h的成功快速恢复。
TISCO No.3 blast furnace is equipped with 4 layers of copper stave on the side of the furnace to the lower part of the furnace body. Due to the high thermal conductivity of the copper stave, the No. 3 blast furnace appears many times when the inspection is resumed, and the thermal load fluctuates frequently In severe cases, furnace cooling, collapse and gas flow accidents often occur. According to the characteristics of difficult recovery of the furnace after the inspection, No. 3 blast furnace will set up a detailed plan of checking off and blowing air, recover the wind and oxygen according to the target node after air blowing, and analyze the characteristics of coal injection, air temperature, fuel ratio, Slag iron and slag emissions and other quantitative control, to achieve a fixed inspection 35h above, 20 ~ 24h successful rapid recovery.
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