Direct ignition of pulverized coal

Details Direct ignition of pulverized coal Direct ignition of pulverized coal

1979-11-05

1980-12-30

Favors, Edward G.

Furnaces

Process

Burning pulverized fuel

110264, 110265, 431 2, 431264, F23D 100

Patent

active

042416736

ABSTRACT:
Pulverized coal is ignited, to furnish energy for warm-up or low load operation of a coal burning furnace, by a technique which does not require the combustion of significant quantities of liquid or gaseous fuels. The direct ignition of pulverized coal in accordance with the present invention contemplates the delivery of a dense phase coal/air stream to an ignition zone where it receives ignition energy and the thus ignited mixture is thereafter contained in a recirculation region until the flame becomes self-sustaining.

REFERENCES:
patent: 2806518 (1957-09-01), Poole et al.
patent: 2921239 (1960-01-01), Dryden
patent: 3007084 (1961-10-01), Thomasian et al.
patent: 3250236 (1966-05-01), Zelinski
patent: 3482534 (1969-12-01), Whitman
patent: 4089628 (1978-05-01), Blackburn

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