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我厂铸件退火炉原采用耐火砖拱形结构,由于炉顶疲劳受热,产生变形或炉子余气爆炸。炉子经常受损,需要大修,再加上炉子的结构和烧咀有些问题,造成炉内温差大,生产率低,耗气量多,针对以上问题,经过多方研究决定将炉顶采用铸铁平板,粘结陶瓷耐火纤维。炉墙也粘陶瓷耐火纤维。炉子烟道改在车下边。又采用引射式烧咀,通过二年的实践。收到效果如下,炉内温度比较均匀,上下温差基本控制在20℃范围内,生产率提高30％,节能效果显著,与原来旧炉相比天然气节约70％,由于炉顶是活动的铁板有防爆作用,操作工艺简单,深受工人欢迎。一、陶瓷耐火纤维的采用
Casting furnace annealing furnace used the original arched firebrick structure, due to fatigue on the top of the furnace, resulting in deformation or furnace gas explosion. The furnace is often damaged, requiring overhaul, coupled with the furnace structure and burning Tsui some problems, resulting in large temperature difference between the furnace, low productivity, air consumption and more, for the above problems, after many studies decided to use cast iron roof plate, bonding Ceramic refractory fiber. Furnace wall also stick ceramic refractory fiber. Stove flue changed under the car. Also used injection-burning Tsui, through two years of practice. Received the following results, the furnace temperature is relatively uniform, the basic temperature control up and down within the scope of 20 ℃, productivity increased by 30%, significant energy saving, compared with the original old furnace saving 70% of natural gas, because the roof is active iron plate Explosion-proof role, the operation process is simple, welcomed by the workers. First, the use of ceramic refractory fiber