人们知道,电加热的热处理炉是没有烟道的。而烧燃料(包括固体、液体和气体燃料)的大型热处理炉,由于在向炉膛内送入适量的助燃空气的同时,要不断地排出烟气,因此必须有个烟道。这是个常识性的问题。日本新日本制铁广畑炼铁厂,在处理钢板的开式连续热处理上做试验时,发现在完全没有未燃尽的煤气的情况下,排烟热损失非常高。经测定确 People know that electric heating furnaces have no flue. However, large-scale heat treatment furnaces that burn fuel (including solid, liquid and gaseous fuels) must have a flue due to the continuous discharge of the flue gas while feeding an appropriate amount of combustion air into the furnace. This is a common-sense question. Japan’s Nippon Steel Works Iron and Steel Guangxu Iron and Steel, in the treatment of steel plate open continuous heat treatment on the test and found that in the absence of unburnt gas, exhaust heat loss is very high. Determined indeed