Burner for combustion of powdered fuels

Details Burner for combustion of powdered fuels Burner for combustion of powdered fuels

1980-08-07

1982-06-08

Favors, Edward G.

Furnaces

Utilizing powdered fuel

Having rotary flow means

110265, 110347, 431183, 431184, F23D 102

Patent

active

043334059

ABSTRACT:
A burner for combustion of powdery fuels. The burner has a core-air tube with a centrically arranged ignition device, a dust tube surrounding the core-air tube, and a mantle-air tube which surrounds the dust tube and is provided with an axially displaceable twist blade ring or impeller, arranged at its air inlet, as well as a burner opening which widens conically toward the combustion chamber. A dust-ignition burner is arranged concentrically in a core-air tube, and comprises an ignition-dust tube arranged concentrically around an igniter, and a mantle-air tube which surrounds the ignition-dust tube for the ignition-dust flame and is provided with an axially displaceable twist blade ring or impeller, arranged at its air inlet, as well as a conically widening outlet. The conical angle of the dust-ignition burner outlet is equal to or greater than the conical angle of the outlet of the main burner. The dust-ignition burner outlet terminates before the beginning of the conical widening of the main burner.

REFERENCES:
patent: 4147116 (1979-04-01), Graybill
patent: 4221174 (1980-09-01), Smith et al.
patent: 4228747 (1980-10-01), Smirlock et al.
patent: 4241673 (1980-12-01), Smith et al.

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