1.概况我厂Φ360×2/Φ250×5轧钢机粉煤连续加热炉,原设计炉膛的内空有效宽3.364米,进炉最大坯料长2.9米。后来由于成品孔型后的飞剪难以控制,造成废品大量增多,就拆除了飞剪。这样使冷床台面长度不够,迫使进炉坯料最大长度不超过2.4米,形成炉膛宽,坯料短,能耗高的局面。改造时将炉膛有效宽3.364米改为2.9米;加热段上空高度1468毫米改为1220毫米,下空高度1650毫米 1. Overview Our factory Φ360 × 2 / Φ250 × 5 continuous rolling mill pulverized coal furnace, the original design of the effective width of the furnace 3.364 meters wide, into the furnace the largest billets 2.9 meters long. Later, due to the finished hole flying shear difficult to control, resulting in a substantial increase in scrap, it removed the flying shear. This cooling table is not enough length, forcing the maximum length of the ingot into the furnace does not exceed 2.4 meters, forming a furnace wide, short billet, high energy consumption situation. Renovation of the effective width of the furnace 3.364 meters to 2.9 meters; 1468 millimeters above the heating section to 1220 mm, height below 1650 mm