炼铁厂由于高炉利用系数不断提高,出铁次数由每天6次增加到10次,炉前修理沙口很费时间,赶不上生产的需要。现在该厂改为双沙口,两个并列固定的沙口轮流使用,这样既可避免在高温下更换沙口,又给高炉高产、稳产创造了条件,做到了出铁不晚点,不丢铁次,克服了炉缸积铁过多而造成事故的现象,保证了生产的需要。 Ironmaking plant blast furnace utilization factor continues to increase, the number of tapping from 6 times a day to 10 times, repair sand mouth before the furnace is time-consuming, keep up the production needs. Now the factory changed to double sand mouth, two parallel fixed sand port rotation, so that can avoid changing the sand mouth at high temperatures, but also to the blast furnace high yield and stable production to create the conditions, so that the iron is not too late, do not lose iron Times, overcame the phenomenon of accident caused by excessive accumulation of hearth and guaranteed the need of production.