METHOD OF OPERATING AN INTEGRATED LOW NOX TANGENTIAL FIRING SYSTEM

METHOD OF OPERATING AN INTEGRATED LOW NOX TANGENTIAL FIRING SYSTEM

An integrated low NOx tangential firing system (12) that is particularly suited for use with pulverized solid fuel-fired furnaces (10), and a method of operating a pulverized solid fuel-fired furnace (10) equipped with an integrated low NOx tangential firing system (12). The integrated low NOx tange...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TOWLE, DAVID, P, RINI, MICHAEL, J, LAFLESH, RICHARD, C, ANDERSON, DAVID, K, ELLEWELL, TODD, D, JENNINGS, PATRICK, L
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AIR
BLASTING
BURNERS
COMBUSTION APPARATUS
COMBUSTION PROCESSES
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN
WEAPONS
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Zusammenfassung:An integrated low NOx tangential firing system (12) that is particularly suited for use with pulverized solid fuel-fired furnaces (10), and a method of operating a pulverized solid fuel-fired furnace (10) equipped with an integrated low NOx tangential firing system (12). The integrated low NOx tangential firing system (12) when so employed with a pulverized solid fuel-fired furnace (10) is capable of limiting NOx emissions therefrom to less than 0.15 lb./10 6 BTU, while yet maintaining carbon-in-flyash to less than 5% and CO emissions to less than 50 ppm. The integrated low NOx tangential firing system (12) includes pulverized solid fuel supply means (62), flame attachment pulverized solid fuel nozzle tips (60), concentric firing nozzles, close-coupled overfire air (98,100), and multi-staged separate overfire air (104,106).