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天津铁厂3号高炉(炉容600m~3)于1997年3月10日停炉大修,第二代炉役为8年9个月12天,共生产合格生铁2999843t,平均单位炉容生产合格生铁4999.7t/m~3。此次大修计划75天。 3号高炉原设计550m~3,于1975年建成投产,历经12年9个月12天,于1988年4月15日停炉大修。炉容由550m~3扩容到600m~3;炉顶由双钟设备改为无料钟设备;热风炉为改造型的内燃式热风炉;沟下和卷扬采用微机控制;设计年产炼钢生铁30～33万吨。历经162天的改
Tianjin Iron Works No. 3 blast furnace (furnace capacity of 600m ~ 3) on March 10, 1997 shutdown overhaul, the second generation of furnace service for 8 years and 9 months and 12 days, a total of 2999843t production of qualified pig iron, the average unit capacity of qualified furnace Pig iron 4999.7t / m ~ 3. The overhaul plan 75 days. The original blast furnace design No. 3 was 550m ~ 3, which was completed and put into production in 1975. After 12 years and 9 months and 12 days, it was stopped and overhauled on April 15, 1988. Furnace capacity is increased from 550m ~ 3 to 600m ~ 3; the top of the furnace is changed from double bell equipment to no bell equipment; the hot stove is a reformed internal combustion stove; the ditch and winch are controlled by computer; the annual output of steelmaking Pig iron 30 to 330,000 tons. After 162 days of change