Burner apparatus for pulverized coal

Details Burner apparatus for pulverized coal Burner apparatus for pulverized coal

1990-07-16

1992-02-25

Bennett, Henry A.

Furnaces

Utilizing powdered fuel

110265, 431284, F23D 100, F23Q 900

Patent

active

050903390

ABSTRACT:
A burner apparatus for pulverized coal comprises a pulverized coal supply pipe, a starter oil burner extending within the pulverized coal supply pipe to define therebetween a tubular passage through which a mixture of combustion air and pulverized coal passes into a furnace, a flame holder provided at an outer periphery of one end of the pulverizerd coal supply pipe facing to the furnace, a cylindrical member disposed in the tubular passage for dividing a part thereof into two coaxial passage parts, and a valve adapted to close an axial end opening of the cylindrical member for varying a concentration of pulverized coal in a radial outer passage part of the coaxial passage parts.

REFERENCES:
patent: 4434727 (1984-03-01), McCartney
patent: 4569295 (1986-02-01), Skoog
patent: 4626195 (1986-12-01), Sato et al.
patent: 4679512 (1987-07-01), Skoog
patent: 4726760 (1988-02-01), Skoog

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