Conveying screw for furnace

Material or article handling – Chamber of a type utilized for a heating function and... – Including driven device and/or inclined flow path to carry...

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Details

34183, 414213, 432236, B65G 3310

Patent

active

046361278

ABSTRACT:
A countercurrent fluid cooled conveying screw is disclosed. Suitable for furnace applications, the screw includes an outer shaft spatially circumscribing an inner tube. A plurality of hollow, fluid cooled flights are affixed to the outer shaft and are in fluid flow communication with coolant coursing through the screw. The coolant is first directed through the flights and then back through the outer shaft before exiting through the inner tube.

REFERENCES:
patent: 192069 (1877-06-01), Higbie
patent: 233320 (1880-10-01), Breyer
patent: 2297289 (1942-09-01), Collis et al.
patent: 3020025 (1962-02-01), O'Mara
patent: 3443931 (1969-05-01), Beggs et al.
patent: 3764062 (1973-10-01), Brautigam
patent: 3777810 (1973-12-01), Phillips
patent: 3800865 (1974-04-01), Onarheim et al.
patent: 4466533 (1984-08-01), Shwayder
"Screw Type Ash Coolers for Fluidized Bed Boilers" Power, Sep. 1982.

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