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近10年来,国内外高炉随着容积的扩大和冶炼强度的不断提高,炉体寿命有降低的趋势;国内高炉炉身寿命尚未达到8年,但一代炉役需中修1～2次,与国外相比差距较大。国外高炉炉身寿命,因冷却形式、内衬材质、监控仪表以及操作和维护水平的不同,长者约11～12年,短者1～2年。如:日本六十年代高炉的平均寿命为5～6年,1980年平均寿命接近8年;君津3号高炉炉龄达到10年8个月。苏联高炉炉身寿命六十年代平均为3～3.4年。法国Solmar钢铁厂1、2号高炉炉身寿命仅10个月和25个月。据英国对33
In the recent 10 years, the domestic and foreign blast furnaces have the tendency of decreasing their life expectancy as the volume increases and the intensity of smelting continues to increase. The life of domestic blast furnaces has not reached 8 years, but the first generation of furnaces needs to be repaired 1 or 2 times. The gap between foreign countries is larger. Blast furnace life abroad, due to the cooling form, lining material, monitoring instruments and the level of operation and maintenance of different, the elderly about 11 to 12 years, the short 1 to 2 years. For example, the average life expectancy of blast furnaces in Japan in the 1960s was 5-6 years, and the average life expectancy in 1980 was nearly eight years. The furnace temperature of the Junjin No.3 blast furnace reached 10 years and 8 months. Soviet Union blast furnace shaft life sixties an average of 3 ~ 3. 4 years. French Solmar Steel Plant No. 1 and 2 blast furnace shaft life of only 10 months and 25 months. According to the British on 33