Method of controlling combustion in a fluidized bed furnace

Details Method of controlling combustion in a fluidized bed furnace Method of controlling combustion in a fluidized bed furnace

1990-06-13

1991-09-03

Favors, Edward G.

Furnaces

Process

Incinerating refuse

110188, 110191, 110204, 110205, 110245, F23G 500

Patent

active

050442872

ABSTRACT:
A method for controlling combustion in a furnace into which combustible material, e.g., urban refuse, industrial waste, and a controlled quantity of combustion air are fed. The furnace includes a mixing/stirring region where unburnt gas and secondary combustion air are mixed and stirred. A part of exhaust gas derived from the furnace is blown into the mixing/stirring region depending on variation in the quantity of the secondary combustion air, and a flow rate of mixture gas consists of the exhaust gas and the secondary combustion air to be fed into the mixing/stirring region is maintained within a predetermined region so that effective combustion takes place.

REFERENCES:
patent: 3863577 (1975-02-01), Steever et al.
patent: 4441435 (1984-04-01), Miyamoto
patent: 4512266 (1985-04-01), Shigaki
patent: 4739713 (1988-04-01), Vier et al.
patent: 4766851 (1988-08-01), Emsperger et al.

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