TWO-STAGE FLUIDIZED BED INCINERATOR FOR INCINERATION OF OBJECT CONTAINING FOREIGN MATTER

PURPOSE:To efficiently incinerate an object containing foreign matter by a fluidized bed incinerator. CONSTITUTION:An incinerator 30 includes a lower fluidized bed 3 where an object containing foreign matter is incinerated, an upper fluidized bed 2 where foreign-matter-free object is incinerated, and a foreign mater separator 9 where combustion residue and fluidized medium 4, that are drawn out of the lower fluidized bed 3, are separated. In addition, a fluidized medium feeder 10 which supplies fluidized medium 4 separated in the foreign matter separator 9 to the upper fluidized bed 2, and a fluidized medium flow-down device 5 by which excess fluidized medium 4 is fed from the upper fluidized bed 2 into the lower fluidized bed 3 are provided.