Method and device for filtering and backwashing solid particles

Details Method and device for filtering and backwashing solid particles Method and device for filtering and backwashing solid particles

1994-11-16

1995-11-07

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210791, 210393, 210402, 210406, 210411, B01D 3306

Patent

active

054645425

ABSTRACT:
A method for filtering and backwashing solid particles out of liquids is illustrated, with a filter drum (5) positioned completely below the liquid level (6) having a cylindrical surface (7) coated with a filter medium (8), the liquid flown through the outside of the filter drum to the inside. A backwashing device for removal of the filter cake from the filter medium is provided. At the beginning of each cycle of backwashing an air cushion (15) is introduced in the filter drum (5) and liquid in the filter drum (5) is displaced in such a manner so that liquid jets from an ejetion apparatus (19) containing a spraying head (17) and being arranged in the interior of the filter drum without being sealed on the filter drum penetrate through the air cushion (15) to the backside of the cylindrical surface (7) of the filter drum (5). The filter cake so removed from the filter drum is withrawn at the outside of filter drum (5) in a stream of liquid.

REFERENCES:
patent: 3244281 (1966-04-01), Kurz et al.
patent: 3347379 (1967-10-01), Miller
patent: 4090965 (1978-05-01), Fuchs
patent: 4450080 (1984-05-01), Dodd
patent: 4655937 (1987-04-01), Hendrix
patent: 4702847 (1987-10-01), Fux et al.
patent: 4898671 (1990-02-01), Fux et al.
patent: 5139670 (1992-08-01), Hirs
patent: 5213685 (1993-05-01), Padovan
patent: 5268095 (1993-12-01), Barzuza

Affiliated with

Also associated with

Rating

Method and device for filtering and backwashing solid particles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for filtering and backwashing solid particles , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for filtering and backwashing solid particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-195192