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Title:
PROCESSING METHOD FOR WASTE, AND GASIFYING AND MELTING APPARATUS
Document Type and Number:
Japanese Patent JP3270453
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a method and an apparatus wherein a combustible substance such as waste and coal is gasified, and product gas is produced involving a much volume of a meltable combustible fraction in ash fraction of the combustible substance with self heat, and melted and combusted.
SOLUTION: In a method where waste is gasified in a fluidized bed furnace 2, and then an ash fraction therein is melted in a melting furnace, a circulation flow of a fluid medium is formed in a fluidized bed furnace 2 and waste is supplied into the fluidized bed furnace 2 for gasifying to produce gas and char, and then non-combustible substances involved in the waste and the fluid medium are discharged from a bottom of the fluidized bed furnace 2. From the discharged non-combustible substances and the fluid medium a large sized non-combustible substances are removed, and thereafter the non-combustible substances are classified and removed, and the classified fluid medium is returned into the fluidized bed furnace 2, and further gas and char discharged from the fluidized bed furnace 2 are supplied into a melting furnace 41 to melt an ash fraction.


Inventors:
Hirayama, Mitsuo
Oshita, Takahiro
Tagome, Chikayuki
Nagatou, Shiyuuichi
Hirose, Tetsuhisa
Miyoshi, Yoshihisa
Toyoda, Seiichiro
Hosoda, Shugo
Fujinami, Shosaku
Takano, Kazuo
Application Number:
JP2001000146096
Publication Date:
January 18, 2002
Filing Date:
February 09, 1995
Export Citation:
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Assignee:
EBARA CORP
International Classes:
F23G5/027; B09B3/00; C10J3/00; C22B1/00; C22B7/00; F23C10/02; F23G5/16; F23G5/30; F23G5/46; F23J1/00; F27B15/02; (IPC1-7): F23G5/027; B09B3/00; F23C10/02; F23G5/16; F23G5/30; F23J1/00