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1 概况 柳钢2号高炉原炉容为255m~3,1985年改造后扩容到318m~3,1989年进行中修,炉容改为306m~3,该高炉年产生铁约20万t。1993年计划对2号高炉进行大修,但由于种种原因未能实现。在此期间,高炉冷却设备大量烧损,砖衬脱落,高炉炉壳出现了大面积的开裂,特别是从第二层到第四层冷却壁5～6号风口带炉壳开裂极为严重。
1 Overview The original furnace capacity of No.2 BF at Yeongang is 255m ~ 3. After its reconstruction in 1985, it was expanded to 318m ~ 3. In 1989, it was undergoing medium repair and the furnace capacity was changed to 306m ~ 3. The annual output of the blast furnace is about 200,000 t. In 1993 it was planned to overhaul No.2 blast furnace, but it failed to achieve this due to various reasons. During this period, large blast furnace cooling equipment, brick lining off, blast furnace shell appeared a large area of cracking, especially from the second layer to the fourth layer of the cooling wall of No. 5 to 6 with a furnace shell cracking is extremely serious.