烟气余热利用是工业炉窑节约能源的有效途径

WASTE HEAT RECOVERYAN EFFECTIVE WAY FOR SAVING ENERGY ON INDUSTRY FURNACES

安钢轧钢加热炉烟气余热利用系统从采用余热锅炉发展到采用空气、煤气预热器，充分利用了烟气余热，使空气预热温度达３５０～４５０℃，煤气预热温度为１５０～２５０℃，节约能源２５％～３０％。目前这一技术在安钢得到了普遍应用。

The waste heat recovery for reheating furnace at Anyang Iron and Steel Group Co.,Ltd.has been developed from waste heat boiler to air & gas heater for more effective heat recovery with the air and gas heating temperature reaches 350 450 and 150 250 respectively,the energy saving rate is of 2530 %.At present the technique has been applied at Anyang Iron and Steel Group Co.,Ltd.extensively.