呼钢650轧机加热炉系烧油的炉子,1980年投产后一直是等外炉,有时因国家分配的重油不足用时,还得买部份高价油。上级有关部门多次要求厂方限期晋等并将油耗降下来。厂领导经多次研究,在1987年7月对炉子进行大修改造,除炉体结构本身作了改动,并采用先进的保温绝热材料,更 The steel-making furnace of the hot rolling mill of the Hunsteel 650 rolling mill has been an external furnace after it was put into operation in 1980. Sometimes it has to buy some high-priced oil due to the shortage of heavy oil distributed by the state. Higher authorities repeatedly asked the factory deadline Jin, etc. and fuel consumption down. After many studies led by the factory manager, in July 1987 overhaul the stove, in addition to the furnace body itself made changes, and the use of advanced thermal insulation materials, and more