Furnaces – Including fluid fuel burner – Powdered solid fuel
Patent
1996-02-06
1999-11-16
Lazarus, Ira S.
Furnaces
Including fluid fuel burner
Powdered solid fuel
110263, 431187, 431188, F23C 110, F23C 700, F23D 100, F23M 900
Patent
active
059838094
ABSTRACT:
A burner assembly in which an inlet is provided for receiving a mixture of particulate fuel and air, an outlet extending at an angle to the axis of said inlet. A passage connects the inlet and the outlet for passing a portion of the mixture directly from the inlet to the outlet, and a chamber communicates with the inlet for receiving a second portion of the mixture. The chamber is constructed and arranged to swirl the second mixture portion and direct it towards the passage for passing to the outlet. As a result, particle fracture and friction losses are minimized and the burner assembly can operate at relatively low pressures.
A burner section communicates with the inlet section and includes an inlet for receiving the fuel-air mixture from the outlet of the inlet section, and an outlet for discharging the mixture into a furnace. A portion of the fuel-air mixture is divided into a plurality of flow streams in the burner section which discharge from the burner section in a manner to form a plurality of flame patterns. The remaining portion of the mixture passes through an annular passage in the burner section for discharge in an annular flow pattern and the flames produced as a result of the combustion of the fuel are stabilized.
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Ciric Ljiljana V.
Foster Wheeler Energy International Inc.
Lazarus Ira S.
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