BOILER

The invention relates to a boiler for burning a fuel, particularly a powdered biofuel, preferably pulverized wood, said boiler (10) comprising a hybrid burner, which comprises elements (11, 15) for supplying and burning a fossil fuel and a biofuel and in which the fossil fuel is adapted to provide a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SANDHOLM, EERO, SIITONEN, SAMI, KOIVUKUNNAS, PEKKA, SALONEN, TUOMO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AIR BLASTING BURNERS CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES COMBUSTION APPARATUS COMBUSTION PROCESSES DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN RANGES SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a boiler for burning a fuel, particularly a powdered biofuel, preferably pulverized wood, said boiler (10) comprising a hybrid burner, which comprises elements (11, 15) for supplying and burning a fossil fuel and a biofuel and in which the fossil fuel is adapted to provide at least an igniting fuel and the biofuel is adapted to provide a second, preferably main fuel. The boiler (10) comprises a combustion head (12) and a combustion head extension (13) connected to the combustion head (12), and a powder supply duct (15) extended into an interior of the combustion head extension (13) for delivering the biofuel into a combustion chamber (16) disposed in a firebox (17) of the boiler (10). L'invention concerne une chaudière pour brûler un combustible, en particulier un biocombustible en poudre, de préférence du bois pulvérisé, ladite chaudière (10) comprenant un brûleur hybride, qui comprend des éléments (11, 15) pour amener et brûler un combustible fossile et un biocarburant et dans lequel le combustible fossile est adapté pour fournir au moins un carburant d'allumage et le biocarburant est adapté pour fournir un second carburant, de préférence principal. La chaudière (10) comprend une tête de combustion (12) et une extension de tête de combustion (13) connectée à la tête de combustion (12), et un conduit d'alimentation en poudre (15) s'étendant dans l'intérieur de la tête de combustion (13) pour amener le biocarburant dans une chambre de combustion (16) disposée dans un foyer (17) de la chaudière (10).