| 摘要 |
PURPOSE:To permit the super magnification of the size of furnace by a method wherein the furnace is equipped with a dispersing plate, designed so as to have a specified configuration, as the dispersing mechanism of air for the fluidized bed. CONSTITUTION:The furnace is equipped with two sets of dispersing plates 8 for fluidization on the bottom at the left and right sides thereof. The dispersing plates 8 are provided in parallel in the a fluidized bed thermal reaction unit, having both sides rims lower than the central part of the unit and formed into a chevron section symmetrical to the center line, so as to be substantially symmetrical with respect to the center line of the furnace. Incombustible substance discharging ports 42 are provided between respective dispersing plates 8 and respective outside rims while reflecting walls, reflecting the upward stream of fluidized gas and turning the direction thereof toward the center of respective fluidized bed thermal reaction units, are equipped immediately above the side rims of the side of furnace walls of respective dispersing plates 8, further, a material throwing port is provided at the ceiling of the furnace. According to this method, the moving distance of incombustibles may be kept in short and the stagnation of the incombustibles may be prevented even in the furnace having a large width of the furnace whereby the magnification of the size of furnace, which has been impossible so far, may be realized easily. |
