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风口是保证高炉正常生产的关键设备之一.由于它处于高温工作区,又易受到物料磨损和高温冶炼产物——渣、铁的侵蚀,致使风口寿命不长.我国一些厂的风口短寿尤为突出.根据冶金部“热风阀、风口、渣口调研组”对我国九个大厂在1980年到1982年上半年期间的调查统计资料,风口的平均寿命仅有56天.重点企业二年半风口损坏合计～1.1万个,估算损失生铁量近40～50万吨.所以,改进风口设计,提高风口寿命是个急待解决的问题. 为了提高高炉风口寿命,国内外对此作了大量研究.目前国外已多采用高压、高流速冷却水的风口,并取得较好的效果,风口一般寿命可在半年以上,每个风口平均产铁
The tuyere is one of the key equipment to ensure normal blast furnace production.Because it is in the high temperature work area, but also vulnerable to material wear and high temperature smelting products - slag, iron erosion, resulting in the tuyere life is not long. Outstanding.According to the Ministry of Metallurgy “hot air valve, tuyere, slag mouth research group” of China’s nine major manufacturers in the first half of 1980 to 1982 during the survey data, the average life expectancy of only 56 days.Key enterprises for two and a half years Therefore, the improvement of the tuyere design and the improvement of tuyere life are urgent problems to be solved.In order to improve the life of blast tuyere, a large amount of researches have been made at home and abroad. At present, foreign countries have used more high-pressure, high-velocity cooling water tuyere, and achieved good results, tuyere general life expectancy in more than six months, each tuyere average iron