钢厂是使用燃料的大户,但钢厂炼钢平炉和轧钢加热炉的炉子本身热能利用率都不高,一般均在30%左右,其中有20%的热是被炉子上的水冷却件所带走,有30%的热是被炉尾的废气所排走,因此如何回收这些热或如何来减少这些热损失,这个问题历来是钢厂搞节约燃 Steel mills use large amount of fuel, but the thermal energy utilization efficiency of steel mills and rolling mills is not high, generally about 30%, of which 20% of the heat is absorbed by the water cooling elements in the furnace With 30% of the heat being removed by the exhaust of the furnace tail, how to recover the heat or how to reduce these heat losses has historically been the result of a steel-fired fuel economy