Burner nozzle for pulverized coal

Furnaces – Including fluid fuel burner – Powdered solid fuel

Patent

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Details

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.

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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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