APPARATUS FOR GASIFYING TREATMENT OF WASTE PRODUCTS AND PROCESS FOR SELF-COATING OF FURNACE WALL

Title:

APPARATUS FOR GASIFYING TREATMENT OF WASTE PRODUCTS AND PROCESS FOR SELF-COATING OF FURNACE WALL

Document Type and Number:

Japanese Patent JP3938980

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To improve the durability of furnace walls in effecting the primary gasification by a fluidized-bed gasifying furnace and the secondary gasification by a high temperature oxidizing furnace.
SOLUTION: This apparatus for the gasifying treatment of waste products comprises a gasifying furnace using a fluidized-bed for the primary gasification of organic waste products supplied thereinto and a high temperature oxidizing furnace 30 for the secondary high temperature gasification of the gaseous substance obtained in the fluidized-bed gasifying furnace 10 and introduced thereinto. The furnace wall of the high temperature oxidizing furnace is made of a boiler wall structure having a water-tube built-in or of a water cooling-jacket wall, structure, and is provided with an ash circulation line for supplying part of the slug or the molten fly ash to be formed in the high temperature oxidizing furnace to the fluidized- bed gasifying furnace 10, the high temperature oxidizing furnace 30 or a gaseous substance channel between the both furnaces to form a deposit coating on the furnace walls accompanied by the gaseous substance to be introduced into the high temperature oxidizing furnace at the time of the secondary gasification. Alternatively, an ash supplement line for burned ash, etc., introduced from the outside into the fluidized-bed gasifying furnace, the high temperature oxidizing furnace or the gaseous substance channel between the both furnaces can be provided.

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Inventors:

Kameda Osamu
Yoshio Kosaka
Fujinami Akira

Application Number:

JP21250797A

Publication Date:

June 27, 2007

Filing Date:

July 23, 1997

Export Citation:

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Assignee:

Ube Industries,Ltd.
Ebara Corporation

International Classes:

C10J3/00; F23M5/08; C10J3/20; C10J3/24; F23G5/027; F23G5/48; (IPC1-7): C10J3/00; C10J3/20; C10J3/24; F23G5/027; F23G5/027; F23G5/48; F23M5/08

Domestic Patent References:

JP9038462A
JP2150611A
JP62025165A
JP8143876A
JP9137173A
JP6256775A
JP7197043A
JP10300041A

Attorney, Agent or Firm:

Yanagawa Yasuo

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