Burner and boiler equipped with same, and burner operation method

Provided is a burner capable of increasing the co-firing rate of ammonia fuel when co-firing the ammonia fuel and pulverized fuel. The present invention comprises: an inner cylinder nozzle (61) that extends along a central axis (CL); an outer cylinder nozzle (62) that extends along the central axis...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOMINAGA, YUKIHIRO, KITAKAZE, KOSUKE, KAWASOE, YUZO, MINE, TOSHIHIKO, OCHI, YUSUKE, KURAMASHI, KOJI, TAKAYAMA, AKIMASA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AIR BLASTING BURNERS COMBUSTION APPARATUS COMBUSTION PROCESSES FLUES HEATING LIGHTING MECHANICAL ENGINEERING METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES WEAPONS
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Beschreibung
Zusammenfassung:	Provided is a burner capable of increasing the co-firing rate of ammonia fuel when co-firing the ammonia fuel and pulverized fuel. The present invention comprises: an inner cylinder nozzle (61) that extends along a central axis (CL); an outer cylinder nozzle (62) that extends along the central axis (CL) and is disposed so as to cover the inner cylinder nozzle (61), and supplies pulverized fuel and primary air into a furnace; a pulverized fuel flame stabilizer (71) for stabilizing the flame of the pulverized fuel supplied from the outer cylinder nozzle (62); and a concentrator (69) that is disposed inside the outer cylinder nozzle (62) and concentrates the pulverized fuel on the pulverized fuel flame stabilizer (71) side. Ammonia fuel is supplied to the inner cylinder nozzle (61).