To provide a selector of fluidizing medium in a fluidizing zone and a method therefor, capable of selecting only a fluidizing medium with particle diameters within a predetermined level excluding impurities such as alkali metal as much as possible and feeding the selected medium back to the fluidizing zone.
The selector 50 of a fluidizing medium further selects the fluidizing medium taken out from the fluidizing zone 12 and selected at an incombustible material selector 42, and feeds the medium back to the fluidizing zone again. The selector 50 is provided with a sorting and transporting apparatus 56 having a sorting and transporting pipe 54 for sorting and transporting the fluidizing medium selected at the incombustible material selector 42, and a secondary fluidizing medium selector 58 for sorting the fluidizing medium transported by the sorting and transporting apparatus 56 and selecting it having a relatively coarse average particle diameter.
Horikoshi, Takehisa
Oshima, Toshiharu
Wada, Manabu
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