Patent ID: 6783357
Filing Date: 2004-08-31
Classification: F23C,F23D,F23M,Y02E

Abstract:
A burner apparatus comprising:a) a conduit conveying a preheated oxidant flow and having outlet and inlet ends; b) a conduit conveying a preheated fuel flow and having outlet and inlet ends, the conduit conveying the preheated fuel flow being substantially parallel to the conduit conveying the preheated oxidant flow, the conduit conveying the preheated oxidant flow being positioned substantially vertically above the conduit conveying the preheated fuel flow; c) the conduit conveying the preheated oxidant flow being positioned within a respective elongate cavity in a refractory burner block, the conduit conveying the preheated fuel flow being positioned within a respective elongate cavity in the refractory burner block, each of said conduits positioned in their respective cavity such that a substantially annular region is present between an outer surface of each said conduit and respective cavity; and d) each conduit inlet end extending through a respective plenum and receiving an ambient temperature fluid flow, the plenums adapted to pass said ambient temperature fluid flow into the respective annular regions, wherein the flows of preheated fuel and preheated oxidant through the respective conduits occur simultaneously with the flow of the ambient temperature fluids through the respective cavities.