Ash classifier-cooler-combustor

Details Ash classifier-cooler-combustor Ash classifier-cooler-combustor

1989-04-21

1990-11-13

Favors, Edward G.

Furnaces

Ash receiving and handling devices

Fly ash disposers

110245, 122 4D, F23J 100

Patent

active

049694049

ABSTRACT:
A method for treating ash produced by waste coal fluidized bed boilers in which hot ash fines and heated secondary air are introduced into the boiler as the coarse ash is cooled. An ash treatment system for cooperation with a fluidized bed boiler operating on waste fuel having a high ash content receives and classifies hot ash from the boiler, returns ash fines to the boiler, cools coarse ash fines for disposal and burns carbon associated with the ash received from the boiler.

REFERENCES:
patent: 4330502 (1982-05-01), Engstrom
patent: 4664678 (1987-05-01), Rehmat et al.
patent: 4693682 (1987-09-01), Lee et al.
patent: 4700636 (1987-10-01), Vogt et al.
patent: 4759711 (1988-07-01), Ichiyanagi et al.
patent: 4777889 (1988-10-01), Smith
patent: 4813479 (1989-03-01), Wahlgren

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