Combustion – Fuel disperser installed in furnace – Spaced fuel dispersing orifices within furnace
Patent
1986-07-09
1990-12-11
Dority, Carroll B.
Combustion
Fuel disperser installed in furnace
Spaced fuel dispersing orifices within furnace
431284, 431187, 239422, 239424, 239428, F23C 500
Patent
active
049766074
ABSTRACT:
A burner apparatus having particular advantage for use with rotary kilns of the type used to process cement, lime, and the like, provides adjustable flame geometry and location within the combustion zone. Either gaseous or liquid fuels can be fired with highly selective heat flux as required for processing. Air and gaseous fuel injection means are controllable to vary the velocity of injection and thereby alter flame geometry. This is achieved by disposing an axially-adjustable control baffle in a crossectional area of changing transition section formed by coaxial members, between which an air supply conduit is formed. The control baffle is cylindrical and fits in and moves within the air supply conduit. The transition section has frustoconical surfaces opposite frustoconical surfaces on the control baffle so that different gaseous mass flow can be regulated around a central flame resulting in an adjustable flame geometry.
REFERENCES:
patent: 1400657 (1921-12-01), Brodie
patent: 1702298 (1929-02-01), Hetsch
patent: 2368178 (1945-01-01), Turpin
patent: 3671172 (1972-06-01), Chedaille et al.
patent: 3700376 (1972-10-01), Niepemberg et al.
patent: 4095929 (1978-06-01), McCartney
patent: 4447010 (1984-05-01), Maeda et al.
patent: 4602571 (1986-07-01), Chadshay
Dority Carroll B.
Fuel Tech Inc.
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