Pulverized fuel rich/lean separator for a pulverized fuel burner

Details Pulverized fuel rich/lean separator for a pulverized fuel burner Pulverized fuel rich/lean separator for a pulverized fuel burner

1997-06-03

2000-04-25

Lazarus, Ira S.

Furnaces

Including fluid fuel burner

Powdered solid fuel

110104B, 110263, 60749, F23C 110, F23D 100

Patent

active

060531185

ABSTRACT:
A pulverized fuel combustion burner includes a pulverized fuel and air mixture conduit. A pulverized fuel rich/lean separator is disposed at the axial center of the conduit so that a high concentration mixture is formed at an outer peripheral portion of the conduit and a low concentration mixture is formed at a central portion of the conduit. The pulverized fuel rich/lean separator has a cross-sectional shape which gradually enlarges in the flow direction at an angle to the flow direction. It becomes parallel to the flow direction downstream of the enlarging portion, and terminates in a flat surface that is perpendicular to the axis of the separator. A passage extends through the pulverized fuel rich/lean separator along the axis.

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