Furnaces – Utilizing powdered fuel – Having rotary flow means
Patent
1986-11-24
1987-10-27
Favors, Edward G.
Furnaces
Utilizing powdered fuel
Having rotary flow means
55459A, 406173, 431158, F23D 102
Patent
active
047021810
ABSTRACT:
A cyclone separator is disclosed for effectively separating a gaseous or liquid medium from solid particles or for separating two or more similar substances by size or weight. The cyclone separator includes a chamber having a cylindrical member closed off by lower and upper end walls. A first inlet is tangentially formed in a lower portion of the cylindrical chamber and provides a means for introducing a first substance, for example, a carbonaceous fuel. A second inlet is also tangentially formed in a lower portion of the cylindrical chamber above and at an inclined angle to the first inlet. A second substance, for example, pressurized air, can be routed through the second inlet so as to combine with the fuel to form a combustible mixture. The mixture is circulated at a high velocity in an upwardly extending spiral path to promote burning and to produce combustible gas and ash. After the fuel has burned, the ash is removed from the cylindrical chamber through an oulet formed in the outer periphery of the upper wall while the hot combustible gas is removed through an outlet tube coaxially positioned within the cylindrical chamber. The outlet tube contains one or more peripheral openings which are sized and arranged to permit the combustible gas to enter the interior of the tube and be exhausted to the atmosphere. The surface adjacent to the peripheral openings can be curved to require a greater angular turn in order for a gas to enter the tube.
REFERENCES:
patent: 3676987 (1972-07-01), Wunder et al.
patent: 3870493 (1975-03-01), Kall et al.
patent: 4128406 (1978-12-01), Spevack
Aluminum Company of America
Connelly Thomas J.
Favors Edward G.
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