Method and apparatus for the thermal treatment of moist, granula

Details Method and apparatus for the thermal treatment of moist, granula Method and apparatus for the thermal treatment of moist, granula

1977-01-31

1978-10-10

Yuen, Henry C.

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

432 14, 106100, 34 57R, F27B 1500

Patent

active

041193962

ABSTRACT:
Method and apparatus for the thermal treatment of moist, granular materials utilizing at least two superposed cyclone separators, with a relatively long gas conduit connecting the lower cyclone separator to the upper one. Charging means are provided in the conduit for introducing material to be treated near the lower cyclone separator, and a venturi-type constriction is provided in the conduit below the charging means, the constriction having its lower end projecting into the lower cyclone separator and serving to break up lumps of material which might otherwise be deposited in the cyclone separator and transfer the particulate material to the upper cyclone separator.

REFERENCES:
patent: 3309785 (1967-03-01), King
patent: 3843314 (1974-10-01), Ishikawa
patent: 3865602 (1975-02-01), Stich et al.
patent: 3904353 (1975-09-01), Bosshard et al.
patent: 3975148 (1976-08-01), Fukuda et al.
patent: 4010551 (1977-03-01), Rohde
patent: 4039277 (1977-08-01), Kobayashi et al.

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