上海第三钢铁厂型钢分厂~#4加热炉,由于年久失修,受热面积小的预热器已损坏,排烟形式为侧下排烟,烟道积水严重,热风温度低,炉墙炉预散热损失严重,故近几年来能耗一直较高。为此,我们对~#4加热炉进行节能技术改造,将下排烟道改侧上排烟,增加高效管状预热器的换热表面积,配以高风温,全热风低压JBS烧咀,对炉体进行绝热保温,经过半年多生产实践证明,节能效果明显,吨 Shanghai No.3 Iron & Steel Plant Steelmaking Plant ~ # 4 Heating Furnace, Due to disrepair, the preheater with small heating area has been damaged, the exhaust form is side exhaust, the flue water is serious, the hot air temperature is low, the furnace wall Pre-heat loss of furnace serious, so energy consumption has been higher in recent years. To this end, we ~ # 4 heating furnace energy-saving technological transformation, the next row of flue to the side of the smoke change to increase efficient tubular preheater heat exchange surface area, with high wind temperature, all hot air low pressure JBS burner, Insulation of the furnace insulation, after more than six months of production proved that energy-saving effect is obvious, tons