Patent ID: 6659024
Filing Date: 2003-12-09
Classification: F23C,F23D

Abstract:
A combination of a powdery fuel combustion apparatus and a furnace having a vertical sidewall, said combustion apparatus comprising:a burner nozzle for jetting a mixed flow of powdery fuel, air, and combustion assisting air along a jetting directional axis from a discharge opening that lies in a discharge opening plane; a powdery fuel supply pipe, connected to said burner nozzle, for supplying the powdery fuel and air; and a wind box connected to said burner nozzle via said powdery fuel supply pipe, said wind box forming a combustion assisting air supply passage that is disposed around said powdery fuel supply pipe, said powdery fuel combustion apparatus being disposed on said furnace sidewall such that a vertical plane passing through the jetting directional axis of said mixed flow forms an oblique angle with said vertical furnace sidewall, wherein said burner nozzle has an asymmetric shape with respect to right and left sides of said burner nozzle with respect to the vertical plane, and said vertical furnace sidewall lies in the discharge opening plane.