Steel slag cracking furnace with external furnace cover

The utility model relates to the technical field of cracking furnaces, in particular to a steel slag cracking furnace with an external furnace cover, which is characterized in that the steel slag cracking furnace comprises a furnace body, a layer of supporting seat is welded on the outer circumference of the furnace body, a buckling seat is arranged on the upper surface of the supporting seat, thebuckling seat is in a barb shape, and the furnace cover is buckled on the supporting seat. And a boss is arranged at the bottom of the furnace cover, and the furnace cover is rotated to be matched with the buckling seat, so that the furnace cover is fixed on the supporting seat. The utility model has the advantages of simple structure, convenience in operation and long service life. 本实用新型涉及一种裂解炉技术领域，更具体地说，它涉及一种外置炉盖钢渣裂解炉，其技术方案要点是：包括炉体，所述炉体外圆周焊接有一层支撑座，所述支撑座上表面设置有扣座，所述扣座呈倒钩形，所述支撑座上扣设有炉盖，所述炉盖底部设置有凸台，通过旋转所述炉盖，使所述凸台和所述扣座配合，进而将所述炉盖固定在所述支撑座上。本实用新型具有结构简单，操作方便且使用寿命长的优点。