Dual fuel pilot burner for a furnace

Details Dual fuel pilot burner for a furnace Dual fuel pilot burner for a furnace

1986-01-29

1986-12-16

Makay, Albert J.

Furnaces

Including fluid fuel burner

Powdered solid fuel

110264, 110265, 431187, 431284, F23C 110

Patent

active

046288325

ABSTRACT:
A dual fuel burner for a furnace having a tubular housing with upstream and downstream ends and a coaxially disposed ignition chamber terminating in a discharge opening at the downstream end of the housing. A high volatility fuel is ignited within the ignition chamber and the resulting flame passes through the discharge opening. A plurality of pulverized solid fuel conduits surround the ignition chamber and extend from the upstream end to the downstream end of the housing where they discharge the fuel in close proximity to the discharge opening of the ignition chamber. An air intake supplies air to the downstream end of the housing, and a bulkhead is disposed between the air intake and the upstream end of the housing preventing air from flowing towards the upstream end. The air flowing through the downstream end flows out of the housing in a generally annular pattern between the flame issuing from the discharge opening and the solid fuel discharged from the conduits.

REFERENCES:
patent: 3074361 (1963-01-01), Huge et al.
patent: 3115851 (1963-12-01), Ceely
patent: 3256842 (1966-06-01), Vigneron et al.
patent: 4147116 (1979-04-01), Graybill
patent: 4157889 (1979-06-01), Bonnel
patent: 4279206 (1981-07-01), Pitts et al.
patent: 4428309 (1984-01-01), Chang
patent: 4457695 (1984-07-01), Kummel
patent: 4474120 (1984-10-01), Adrian et al.

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