Multi-stage kiln

Details Multi-stage kiln Multi-stage kiln

1987-06-08

1988-03-15

Favors, Edward G.

Furnaces

Refuse incinerator

Rotary drum

110240, 110241, 432106, A47J 3600, A47J 3624

Patent

active

047305649

ABSTRACT:
A multi-stage rotary kiln for burning waste, suitably skid mounted for ease of transport. The kiln includes a pair of concentric tubes affixed one inside the other and rotatable; a first large diameter tube and a second tube of smaller diameter, provided at one end with circumferential wall openings, mounted inside said first large diameter tube. An annular passageway between the two tubes, and opening through the second small diameter tube provides a continuous flow path for the introduction of waste and hot burning gases, the hot gases flowing cocurrently with the waste via the annular passageway, and circumferential openings into and through the second tube. A feed mechanism introduces waste into the annular passageway, elevator means lifts the burning waste from the annular passageway and passes same into the circumferential openings, and the burning waste is transported through the smaller tube and discharged.

REFERENCES:
patent: 2695461 (1954-11-01), Langley et al.
patent: 3097833 (1963-07-01), Harris et al.
patent: 3678598 (1972-07-01), Quillez
patent: 3882800 (1975-05-01), du Chambon
patent: 4014106 (1977-03-01), Bearce
patent: 4175335 (1979-11-01), Avril
patent: 4354826 (1982-10-01), Kruger et al.
patent: 4361100 (1982-11-01), Hinger
patent: 4639217 (1987-01-01), Adams

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