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Title:
PROCESSING METHOD FOR WASTE, AND GASIFYING AND MELTING APPARATUS FOR WASTE
Document Type and Number:
Japanese Patent JP2002130630
Kind Code:
A
Abstract:

To provide a method and an apparatus for gasifying a combustible substance such as waste and coal, and producing product gas containing a large volume of combustible components which can melt ash component thereof by its self heat quantity for melting and combustion of waste.

In an apparatus in which waste is gasified in a fluidized bed furnace 2, and then an ash fraction thereof is melted in a melting furnace, the fluidized bed furnace 2 includes fluidized gas supply means for supplying fluidized gas into the furnace wherein the waste supplied into the furnace is gasified to produce gas and char, and the fluidized bed furnace 2 is provided with a non-combustible substance discharge outlet for discharging non-combustible substances contained in the waste and a bed material. The discharged non-combustible substances and the fluidization medium are separated, and thereafter the bed material is returned into the fluidized bed furnace 2. The melting furnace 41 is provided with a primary combustion chamber 140 and a secondary combustion chamber 150 communicated with the primary combustion chamber 140, and further a discharge outlet. The gas and char discharged from the fluidized bed furnace 2 are supplied to the primary combustion chamber 140 and are combusted in the primary combustion chamber 140 and the secondary combustion chamber 150 in which the ash fraction is melted and is discharged from the discharge outlet.


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Inventors:
Hirayama, Mitsuo
Oshita, Takahiro
Tagome, Chikayuki
Nagatou, Shiyuuichi
Hirose, Tetsuhisa
Miyoshi, Yoshihisa
Toyoda, Seiichiro
Hosoda, Shugo
Fujinami, Shosaku
Takano, Kazuo
Application Number:
JP2001000146102
Publication Date:
May 09, 2002
Filing Date:
February 09, 1995
Export Citation:
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Assignee:
EBARA CORP
International Classes:
F23G5/24; B09B3/00; C10J3/00; F23G5/027; F23G5/16; F23G5/30; F23J1/00; F27B3/10; F27B3/18; F27B3/19; F27B3/20; F27B3/22; F27B15/08; F27B15/09; F27B15/10; F27D15/02; F27D17/00; (IPC1-7): F23G5/24; B09B3/00; F23G5/027; F23G5/16; F23G5/30; F23J1/00; F27B3/10; F27B3/18; F27B3/19; F27B3/20; F27B3/22; F27B15/08; F27B15/09; F27B15/10; F27D15/02; F27D17/00
Attorney, Agent or Firm:
渡邉 勇 (外1名)