Screw conveyor for transporting powder with automatic air washin

Details Screw conveyor for transporting powder with automatic air washin Screw conveyor for transporting powder with automatic air washin

1995-07-11

1996-10-15

Dayoan, D. Glenn

Conveyors: power-driven

Conveyor having impinging fluid to feed, shift or discharge...

Having cleaning means

198670, B65G 4500

Patent

active

055645550

ABSTRACT:
A hollow shaft of a screw conveyor for transporting powder material receives pressurized air in its interior. A plurality of openings through the wall of the hollow shall permits the pressurized air to exit energetically to prevent build-up of the powder material on the inside wall of the casing of the screw conveyor. In one embodiment, the openings are slits angled with respect to the axis of the screw conveyor at about the same angle as the helical blade. This produces a swirling flow of air which, in addition to preventing build-up of materials, enhances the advance of the powder material and, when the powder material is a mixture of different materials, helps prevent separation of the materials during transport.

REFERENCES:
patent: 940075 (1909-11-01), Schuster

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