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与干式煤气除尘原理一样,小高炉的风口为什么不可以改成不需水冷却的干式风口呢?我们设想的这种风口其特点是省水、不降低风温、耐高温、耐渣铁侵蚀,耐炉料磨损,因此也可以叫做干式长寿风口。小高炉在漫长的生产实践中,有一个烦人的问题——风口寿命短。频繁的更换风口,经常停风影响产量,影响铁厂的效益。我们厂1号高炉原来只有15m~3,今年大修扩容为22m~3,风机仍为160m~3/min的罗茨风机。原来每天消耗土焦40～50t,土烧结80～90t,月产生铁1000～1400t。扩容后每天消耗土焦50～65t,土烧结110～]30t,月产生铁1700～1800t。随着冶炼强度和利用系数的提高,风口消耗也由原来的10～20个,增加到30～40个。有时一天换3～4个风口,每换一个风口需休风10～30分钟,每月影响产量大约5%～10%。为了彻底解决风口问题,今年9月份我
And dry gas dust removal principle, why the small blast furnace tuyere can not be changed to do not need water cooling dry tuyere? We envisaged this tuyere is characterized by water, does not reduce the air temperature, high temperature, slag resistance Erosion, resistant to wear and tear, it can also be called dry longevity tuyere. Small blast furnace In the long production practice, there is an annoying problem - the short life of the tuyere. Frequent replacement of tuyere, often stop the wind affect the output, affecting the efficiency of the ironworks. Our factory No. 1 blast furnace originally only 15m ~ 3, this year overhaul expansion to 22m ~ 3, the fan is still 160m ~ 3 / min Roots blower. The original daily consumption of coke 40 ~ 50t, soil sintering 80 ~ 90t, on the production of iron 1000 ~ 1400t. Exhausted after the expansion of soil coke 50 ~ 65t, soil sintering 110 ~] 30t, on the iron 1700 ~ 1800t. With the improvement of smelting strength and utilization factor, the tuyere consumption also increased from 10 to 20 to 30 to 40. Sometimes for 3 to 4 a day for each outlet for a break need to rest for 10 to 30 minutes, the monthly impact of production about 5% to 10%. In order to completely solve the tuyere problem, I am in September of this year