Grate assembly for a fluidized bed boiler

Details Grate assembly for a fluidized bed boiler Grate assembly for a fluidized bed boiler

1996-12-09

1998-04-28

Denion, Thomas E.

Furnaces

Refuse incinerator

Refuse suspended in or supported by a fluid medium

122 4D, 423 58, F23G 500

Patent

active

057431973

ABSTRACT:
A grate assembly for a fluidized bed boiler comprises a number of parallel sparge pipes or the like extending side-by-side in a substantially horizontal plane and provided with elements for supplying fluidizing air from within the sparge pipes or the like into a combustion chamber located above the grate assembly. The discharge of some of the fluidized bed materials is effected through an aperture system formed between the adjacent sparge pipes into a receiver unit fitted below the grate assembly. The sparge pipes are provided with a cooling medium circulation by means of a duct assembly.

REFERENCES:
patent: 2500323 (1950-03-01), Puckett
patent: 2608958 (1952-09-01), Hazelton
patent: 3665894 (1972-05-01), Jones
patent: 4312302 (1982-01-01), Kollerup
patent: 4357883 (1982-11-01), Comparato et al.
patent: 4429644 (1984-02-01), Thomas
patent: 4753180 (1988-06-01), Narisoko et al.
patent: 5203284 (1993-04-01), Dietz
patent: 5425331 (1995-06-01), Abdulally

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