Column filter using bundles of long fibers

Details Column filter using bundles of long fibers Column filter using bundles of long fibers

1989-07-14

1990-04-10

Sever, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Membrane movement during purification

21032169, B01D 1300, B01D 1301

Patent

active

049158333

ABSTRACT:
A column filter using bundles of long fibers is disclosed. The bundles of long fibers are fixed at their lower end portions but are free-standing at their upper end portions. The length of the fibers in the bundles may preferably be longer than 1,000 mm but shorter than 3,000 mm--especially longer than 2,000 mm but shorter than 3,000 mm. During operation, the bundles may be compressed to a height of 80-30%, generally 50-40% of their original height. A plurality of holders for the respective bundles of long fibers, each of said holders being formed of a cap and a tube communicating to each other, said cap defining orifices and said tube defining a slot through a side wall and opening at both upper and lower ends, may preferably be provided on a perforated plate arranged transversely in a lower interior part of the shell with the cap being located above the perforated plate and the tube being positioned below the perforated plate. The holders cover substantially all perforations of the perforated plate. The lower end portion of each of the bundles is fixed to a lower periphery of a side wall of the associated cap.

REFERENCES:
patent: 4605500 (1986-08-01), Takemura et al.

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