Screw conveyor type drying apparatus

Details Screw conveyor type drying apparatus Screw conveyor type drying apparatus

1987-12-07

1988-08-09

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

Stationary receptacle or tube with agitator or conveyor

34183, 366300, 366301, 366320, F26B 1720

Patent

active

047618973

ABSTRACT:
A screw conveyor type drying apparatus has a plurality of hollow drive shafts each having a plurality of hollow feed vanes located on the respective drive shaft along an imaginary helix positioned on the outer peripheral surface of the drive shaft. The drive shafts are driven so that adjacent drive shafts are rotated in mutually opposite directions, whereby a material to be dried is conveyed. A heating fluid supply device feeds heating fluid into the hollow internal of the feed vanes through the hollow drive shafts, whereby the material coming in contact with the feed vanes during conveyance is heated and dried.

REFERENCES:
patent: 2636284 (1953-04-01), Napier
patent: 3646689 (1972-03-01), Kuchenthal
patent: 3678596 (1972-07-01), Kubo
patent: 3800865 (1974-04-01), Onarheim et al.
patent: 4214376 (1980-07-01), Lucke
patent: 4281934 (1981-08-01), Krause et al.
patent: 4417697 (1983-11-01), Saiki et al.

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