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三明钢铁厂三座高炉10个热风炉,1995年平均风温995℃,1996年风温985℃,1997年1～10月份平均风温1029℃。由于提高风温之后,热风炉寿命有所降低,因此,每年都有热风炉中修任务。1996年有三座热风炉中修:1号高炉3号热风炉10月8日凉炉中修,11月14日修风送风,中修工期37天。2号高炉1号热风炉4月22日停炉中修,由于修炉方案与备件质量问题,中修工期96天。3号高炉1号热风炉10月25日开始中修,11月25日修好,中修工期31天。中修工期包括凉炉、砌砖、烘炉等。1996年热风炉中修费用216.70万元(按修两个炉统计),生产铁共626604t,每吨铁3.458元。
Sanming Iron and Steel Company three blast furnace 10 hot stove, 1995 average wind temperature 995 ℃, 1996 wind temperature 985 ℃, January to October 1997 average temperature 1029 ℃. Due to increased air temperature, stove life has decreased, so every year, stove repair tasks. In 1996 there are three hot stove in the repair: No. 1 Blast furnace No. 3 hot stove on October 8 in shag repair, November 14 repair air supply, repair period of 37 days. No. 2 blast furnace hot blast furnace April 22 shutdown in the repair, maintenance of the program and spare parts quality problems, repair period of 96 days. No. 3 blast furnace hot stove No. 1 October 25 began to repair, repaired on November 25, in the construction period of 31 days. The repair period includes a cool stove, brick, oven and so on. In 1996 hot stove repair costs 2.677 million yuan (according to repair two furnace statistics), a total of 626,604 tons of iron production, iron per tonne 3.458 yuan.