To provide a method and apparatus for operating a fluidized bed incinerator capable of a stable operation at a high efficiency by recovering fly ash together with a fluidized medium by a solid-gas separator to prevent generation of clinker.
In a fluidized bed incinerator 1 a fluidized medium is recovered by separation from waste gas by a solid-gas separator 5, and the medium which has passed a downcomer 6 connected to the lower part of the separator is temporarily stored in a seal pot 7, and the medium is returned from the pot 7 through a fluidized medium return path 13 into the furnace. A fly-ash separation means is provided for separating the fluidized medium from the fly ash in the downcomer 6, fly ash separated in the downcomer 6 by the separation means is returned to the soil-gas separator 5. In the fly-ash separation means, a downcomer superficial velocity U0 is set to be an intermediate velocity of terminal velocity U1, and U2 respectively of the fluidized medium and fly ash.
YOSHIDA SUEO
HONDA HIROKI
SHIMIZU YOSHIHITO
ISHIKAWA IZURU
YAMAUCHI TSUNEKI
