Patent ID: 8196531

Claim:
A burner for the oxidant gasification of pulverized fuels, comprising: a centrally disposed pilot burner section arranged coaxially with an axial centerline of the burner; a concentric annular duct arranged coaxially around the pilot burner, where the concentric annular duct supplies the oxidant to an oxidant outlet; a plurality of pulverized coal feeding tubes, each carrying a pulverized coal stream, concentrically arranged in a circular array radially outside of the annular duct, wherein individual pulverized coal feeding tubes are intrinsically straight, and inclined toward the burner axis in a direction of the burner outlet, and end at the burner outlet adjacent to the oxidant outlet, wherein the annular duct has swirl blades, disposed at an annular duct outlet port at the burner outlet, that impart a rotational movement to the oxidant stream, and wherein the plurality of pulverized coal streams and the oxidant stream merge into a single rotating pulverized fuel dust/oxygen stream at the burner outlet, wherein the individual pulverized coal feeding tubes are equiareal from the burner inlet up to the burner outlet.