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水钢2号高炉第三代炉役自1998年抢救性大修开炉以来,至2002年四季度,炉身7、8、9段冷却壁和凸台几乎全部损坏,炉底温度偏高.被迫于2003年2月10日至2月16日停炉进行以安装铜冷却棒和炉身喷补为主的中修。中修开炉后冷却棒无一损坏,风口破损率大幅度下降,高炉技术经济指标稳步提高,这是国内首次在1200m~3高炉上安装500余支钢冷却棒取得成功的范例。
The No.3 blast furnace of the No.2 blast furnace has been almost completely damaged by the cooling staves and bosses of the 7th, 8th and 9th sections of the furnace body since the rescue overhaul was started in 1998, and the furnace bottom temperature is high. Forced from February 10, 2003 to February 16 shutdown furnace to install copper cooling rods and the main repair of the fire in the repair. After repairing the furnace, there was no damage to the cooling rod, the tuyere damage rate dropped drastically, and the technical and economic indexes of the blast furnace steadily increased. This is the first successful example of installing more than 500 steel cooling rods on a 1200m ~ 3 blast furnace in China.