Loop-bed combustion apparatus

Details Loop-bed combustion apparatus Loop-bed combustion apparatus

1982-12-14

1984-08-21

Dority, Jr., Carroll B.

Furnaces

Utilizing powdered fuel

Having rotary flow means

110347, F23D 102

Patent

active

044663609

ABSTRACT:
The present invention is directed to a combustion apparatus in the configuration of a oblong annulus defining a closed loop. Particulate coal together with a sulfur sorbent such as sulfur or dolomite is introduced into the closed loop, ignited, and propelled at a high rate of speed around the loop. Flue gas is withdrawn from a location in the closed loop in close proximity to an area in the loop where centrifugal force imposed upon the larger particulate material maintains these particulates at a location spaced from the flue gas outlet. Only flue gas and smaller particulates resulting from the combustion and innerparticle grinding are discharged from the combustor. This structural arrangement provides increased combustion efficiency due to the essentially complete combustion of the coal particulates as well as increased sulfur absorption due to the innerparticle grinding of the sorbent which provides greater particle surface area.

REFERENCES:
patent: 2900930 (1959-08-01), Cermak
patent: 3136536 (1964-06-01), Heinemann

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