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电弧炉废气的能量损失约为80～200kWh/t［1］，采用预热废钢回收废气中的显热和采用二次燃烧技术回收废气中的CO的潜热，已成为电弧炉工作者追求的目标之一。西宁特钢集团公司的Consteel电弧炉［2］将二次燃烧从炉内移到炉外的预热装置中进行，并在此装置中完成CO气体的二次燃
The energy loss of EAF exhaust gas is about 80 ~ 200kWh / t [1]. The use of preheating steel to recover the sensible heat in the exhaust gas and the secondary combustion technology to recover the latent heat of CO in the exhaust gas has become the target of electric arc furnace workers one. Xining Special Steel Group’s Consteel electric arc furnace [2] will be secondary combustion from the furnace to preheat the furnace outside the device, and in this device to complete the secondary combustion of CO gas