| 摘要 |
PROBLEM TO BE SOLVED: To restrict the reduction in heat efficiency while achieving temperature uniformity of the interior and the surface of a burned object.SOLUTION: A continuous heating furnace 200 comprises: a plurality of radiation heating systems 100 arranged separately in parallel with a transportation direction of a burned object w in a furnace body 212 and having a radiation surface 120a for transferring radiation heat by facing the burned object transferred by a transportation part 210 to irradiate the burned object with an electromagnetic wave, and a heating part for heating the radiation surface; and a plurality of shield parts 216b extending in a direction normal or inclined to the transportation direction, at least extending on the side of the burned object of the radiation surface from the position of a radiation part so as to insulate part of the electromagnetic wave proceeding to the burned object from the radiation surface, in which in a region where the burned object is transferred by the transportation part, a radiation heating area B which is irradiated with the electromagnetic wave from the radiation surface and a shield region C where the electromagnetic wave from the radiation surface is insulated by the shield part so as to avoid the direct irradiation of the electromagnetic wave are alternately formed along the transportation direction.SELECTED DRAWING: Figure 4 |
