Burner nozzle for pulverized coal

Details Burner nozzle for pulverized coal Burner nozzle for pulverized coal

1998-01-08

2000-08-22

Lazarus, Ira S.

Furnaces

Including fluid fuel burner

Powdered solid fuel

110263, 110104B, 2395905, 239500, 239502, F23C 110

Patent

active

061055166

ABSTRACT:
A stationary coal nozzle for a burner on a pulverized coal fired furnace having an elongated tubular nozzle with an inlet for receiving a flowing stream of coal/air mixture and an outlet for discharging the flowing stream into a combustion zone of a furnace for burning. A multiple of transversely extending rib segments protrude into the nozzle from its inside wall and are circumferentially arranged for distributing and diffusing a flowing stream of pulverized coal in the coal/air mixture upon exiting the nozzle outlet. A deflector plate may also be provided which closes off an upper portion of the nozzle inlet to prevent pulverized fuel roping.

REFERENCES:
patent: 2956400 (1960-10-01), Ferri
patent: 3859935 (1975-01-01), Walker
patent: 4041694 (1977-08-01), Lewis
patent: 4348170 (1982-09-01), Vatsky et al.
patent: 4380202 (1983-04-01), LaRue et al.
patent: 4408548 (1983-10-01), Schmalfeld et al.
patent: 4479442 (1984-10-01), Itse et al.
patent: 4634054 (1987-01-01), Grusha
patent: 5483906 (1996-01-01), Hufton
patent: 5593302 (1997-01-01), Althaus et al.
patent: 5669766 (1997-09-01), Hufton

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