Apparatus for burning pulverized solid fuels with oxygen

F - Mech Eng,Light,Heat,Weapons – 23 – D

Patent

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F23D 1/00 (2006.01)

Patent

CA 2519981

A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a fuel supply tube arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, solid fuel into a flame chamber. Oxygen flowing through the oxygen supply tube passes through oxygen-injection holes formed in the fuel supply tube and then mixes with fluidized, pulverized, solid fuel passing through the fuel supply tube to create an oxygen-fuel mixture in a downstream portion of the fuel supply tube. This mixture is discharged into the flame chamber and ignited in a flame chamber to produce a flame.

L'invention concerne un assemblage de brûleurs combinant de l'oxygène et du combustible pour produire une flamme. Cet assemblage de brûleurs comprend un tube d'alimentation en oxygène conçu pour recevoir un flux d'oxygène et un tube d'alimentation en combustible conçu pour s'étendre à travers le tube d'oxygène pour transporter un flux de combustible solide pulvérisé fluidifié dans le compartiment de flamme. L'oxygène circulant dans le tube d'alimentation en oxygène passe par des orifices d'injection d'oxygène formés dans le tube d'alimentation en combustible, puis est mélangé au combustible solide pulvérisé et fluidifié circulant dans le tube d'alimentation de combustible pour créer un mélange oxygène/combustible dans une partie aval du tube d'alimentation de combustible. Ce mélange est injecté dans le compartiment de flamme et enflammé dans ce compartiment pour produire une flamme.

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