System of apparatus for filling bags with dry powder

Details System of apparatus for filling bags with dry powder System of apparatus for filling bags with dry powder

1980-06-09

1982-09-28

Schmidt, Frederick R.

Fluent material handling, with receiver or receiver coacting mea

Diverse fluid containing pressure filling systems involving...

Gas condition control in housing for receiver

141 59, 141 67, 141 89, 366312, 406172, B65B 116, B65B 3102, B01F 704

Patent

active

043513735

ABSTRACT:
A system of apparatus for filling bags with dry powdered material and separating foreign matter therefrom includes a vacuum chamber for receiving a bag for filling with dry powder and a novel classifier for removing particulate foreign matter from the powder. The system includes a tank which is evacuated by a small vacuum pump and is connected to the enclosure where the bags are filled with powder and also is connected to a classifier which is provided for separating particulate foreign matter from the powder being bagged. The classifier is a rotary screen separator which discharges dry powder through the screen into a hopper connected to the bag filling enclosure. The classifier is connected to be maintained under vacuum on the outlet side during operation and is arranged to be connected to vacuum on the inlet side for back flushing to remove and recover particulate matter collected therein.

REFERENCES:
patent: 3707172 (1972-12-01), Obara

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