| 摘要 |
PROBLEM TO BE SOLVED: To reduce resident matter such as sand and non-combustible matter in the vicinity of a boundary between a furnace wall and an air diffuser plate. SOLUTION: The present fluidized bed incinerator is adapted such that it includes a fluidized bed for combusting a waste by blowing an air flow 13 from a furnace bed 12 into the furnace and flowing high temperature combustion media such as sand 8 in the furnace, and it forms a combustion space with an air diffuser plate 6 provided on the furnace bed 12 having an air diffusion hole 6a for blowing the air flow 13 into the furnace and a furnace wall 1 rising upward from the surroundings of the diffuser plate 6. In this case, there is provided forced flowing means for a resident matter existent in the vicinity of a boundary part 7 between the air diffuser plate 6 and the furnace wall 1. One of the forced flowing means includes injection means 2 for injecting gas into the furnace from the furnace wall 1 side in the vicinity of the boundary 7 between the air diffuser plate 6 and the furnace wall 1, and an injected gas passage 4 of the injection means 2 provided in the vicinity of the boundary 7 between the air diffuser plate 6 and the furnace wall 1 along the outside periphery of the furnace wall 1 rising upward from the surroundings of the air diffuser plate 6. |
