Furnaces – Process – Burning pulverized fuel
Patent
1982-02-12
1984-01-24
Yuen, Henry C.
Furnaces
Process
Burning pulverized fuel
110232, 110261, 110264, 431278, F23D 100
Patent
active
044269382
ABSTRACT:
A method of igniting a pulverized-coal annular burner flame having an internal back flow region, with the ignition energy being introduced centrally into the interior of the back flow region of the pulverized-coal annular burner flame. The ignition energy for the annular burner flame is furnished by an ignited pulverized-fuel igniting flame or pilot light, which is operated with pulverized fuel having a different coarseness and/or consistency than does the primary fuel. Pulverous ignition fuel is withdrawn from the conduit of the primary fuel stream after an existing pulverizing plant at a location which is advantageous with regard to flow dynamics. The ignition fuel is withdrawn by means of a withdrawal device which is capable of being shut off, with the withdrawal opening thereof being directed in the direction of the primary fuel flow.
REFERENCES:
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patent: 2293737 (1942-08-01), Hardgrove
patent: 2385508 (1945-09-01), Hammond
patent: 3007517 (1961-11-01), O'Cathey
patent: 3393650 (1968-07-01), Daman et al.
patent: 4333405 (1982-06-01), Michelfelder et al.
Leikert Klaus
Rennert Klaus-Dieter
L. & C. Steinmuller GmbH
Yuen Henry C.
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