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1.概况 宝钢一高炉热风阀是钢板焊接结构的竖型插板式阀门,阀直经φ1800mm,由日本久保田枚方制作所生产,推荐使用寿命2.5年,国外使用寿命平均4年上下。宝钢于1985年9月15日在一号高炉(4063m~3)使用,其中4号热风阀于1991年8月2日因漏水更换下来,使用了5.92年,这期间产铁1805万吨,阀门开闭16136次;1号热风阀于1992年10月28日更换下来,使用了7.1年,这期间产铁2211万吨,阀门开闭20688次;2号、3号热风阀至今仍正常使用,已使用了近8年。 阀门的使用条件是:风温在阀开启送风
1. Overview Baosteel blast furnace hot air valve is a welded steel plate vertical plug-in valve, the valve through φ1800mm, produced by Japan Kubota Hirakata, recommended life of 2.5 years, the average life span of 4 years up and down. Baosteel was used on No. 1 blast furnace (4063m ~ 3) on September 15, 1985, in which No. 4 hot blast valve was replaced on August 2, 1991 due to water leakage and used for 5.92 years. During this period, it produced 18.05 million tons of steel and valves Opening and closing 16,136 times; No. 1 hot air valve replaced on October 28, 1992, the use of 7.1 years, during which 22.1 million tons of iron production, valve opening and closing 20688 times; No. 2, No. 3 hot air valve is still normal use, Has been used for nearly 8 years. Valve conditions of use are: air temperature in the valve open air supply