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United States Patent Application

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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 solid fuel conduit 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 generally tangentially through a first set of oxygen-injection holes formed in the solid fuel conduit and off-tangentially from a second set of oxygen-injection holes formed in the solid fuel conduit and then mixes with fluidized, pulverized, solid fuel passing through the solid fuel conduit to create an oxygen-fuel mixture in a downstream portion of the solid fuel conduit. This mixture is discharged into a flame chamber and ignited in the flame chamber to produce a flame.
TAYLOR, Curtis (Gaston, IN), PATTERSON, Brad (Dunkirk, IN), PERDUE, Jayson (New Castle, IN)
14/ 372,309
September 5, 2013
GOVERNMENT INTEREST STATEMENT [0001] This invention was made with United States government support under contract number DE-FC26-06NT42811, issued by the United States Department of Energy. The United States government has certain rights in this invention.