| 摘要 |
A door for drawing a heating furnace is provided to preclude damage of a cooling water supply line and a return line by removing cracks for emitting high temperature heat of the heating furnace outside. A door for drawing a heating furnace comprises a cooling part(40) for placing cooling water, a refractory(60), and plural edge parts(80). The refractory is installed at one side of the cooling part toward inside of the heating furnace. The plural edge parts are placed at the outside of the cooling part to fix the periphery of the refractory, and separated not to deform each other even if heat-expanded by heat of the heating furnace. A tip end of the edge parts is curved inward to fix the refractory. The cooling part consists of a cooling water supply line(140), and a cooling water return line(150). The cooling water supply line and the cooling water return line are connected at the outside of the cooling part. |
