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高炉各部分的炉衬,受着各种不同因素的侵蚀.炉腹与炉腰部分处于高温及液体炉渣的严重侵蚀作用下,因此大修时这部分衬砖一般均已侵蚀不可辨认.但由于水冷却生成保护层——渣皮,所以即使炉腹砖衬完全受到侵蚀,也还可以继续冶炼.看来炉缸炉底与炉胸部分砖墙的侵蚀是影响高炉寿命的最主要的因素.苏联一代高炉寿命最高的记录达十四年又十一个月另两天,但一般均在5至7年,也还有不少尚为3至4年.我国第一届高炉会议规定的一代高炉寿命为5年.但不少高炉没有达到5年即需停炉大修.二次大修之间,通常尚需一次中修.
Blast furnace lining of various parts of the furnace, subject to a variety of factors of erosion. Bosh and waist part of the high temperature and liquid slag under the severe erosion, so overhaul this part of the lining brick has generally been eroded not recognized.But due to water cooling The formation of the protective layer - slag skin, so even if the briquette lining completely eroded, but also can continue to smelt.It seems that the bottom of the hearth and hearth chest brick wall erosion is the most important factor affecting the life of the blast furnace. Blast life record of the highest up to fourteen years and eleven months in two days, but generally are in 5 to 7 years, there are still many are still 3 to 4 years. China’s first blast furnace blast furnace life requirements of a generation For 5 years, but many blast furnace does not reach 5 years that need to shut down furnace overhaul between the two major overhauls, usually still need to repair.