Powder transfer from supersack containers and dispersion into a

Conveyors: fluid current – Intake to fluid current conveyor – Load receptacle type

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Details

406 39, 406134, 406151, 406154, 222195, B65G 5326, B65G 5338

Patent

active

055076025

ABSTRACT:
Apparatus with a horizontally stretched flexible membrane is used to sealingly support a lower, openable end portion of an air-permeable sack containing powder material. A conical funnel-like sealable portion of the apparatus immediately beneath the membrane may be connected to a mechanism for applying a suction. This suction uses inward air flow from the ambient atmosphere through the air-permeable wall of the sack and the powder material contained therein, to generate a fluidized air/powder material outflow from the lower opening of the sack. The funnel-like element guides this flow and enables transfer of the air-fluidized powder material flow. To form a slurry, a conventional disperser/mixer mechanism dipped into a quantity of liquid in a tank may be connected to a suction duct to apply the desired suction. Fluidized air/powder material flow then is intensely and rapidly stirred with the liquid to form a slurry.

REFERENCES:
patent: 4007921 (1977-02-01), Zingg
patent: 4778280 (1988-10-01), Brazelton
patent: 4902173 (1990-02-01), Hendee et al.
patent: 4955723 (1990-09-01), Schneider
patent: 5161887 (1992-11-01), Goldberg et al.

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