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1. (WO2014199321) BACKFLUSHING FILTER AND FILTER INSERT FOR THE SAME

Pub. No.:    WO/2014/199321    International Application No.:    PCT/IB2014/062142
Publication Date: Fri Dec 19 00:59:59 CET 2014 International Filing Date: Thu Jun 12 01:59:59 CEST 2014
IPC: B01D 29/23
B01D 29/68
B01D 29/94
Applicants: BOLL & KIRCH FILTERBAU GMBH
Inventors: CARTARIUS, Karsten
FINSEL, Andreas
ROTT, Willi
Title: BACKFLUSHING FILTER AND FILTER INSERT FOR THE SAME
Abstract:
The invention relates to a backflushing filter for liquid media, having a filter insert (50) formed by means of at least one support cage (52), which has at least two groups of slot-like windows (53), and at least one filter medium (51), which is supported on the support cage (52), wherein the windows (53) of each group (53A, 53B) run as to be oriented parallel to one another and are separated from one another by webs (54) of the support cage (52), and having a rotatable backflushing device (60) which is arranged in the interior of the filter insert (50) and which has at least one gap opening (75) and which serves for flushing out the filter medium (51) via the gap opening (75) and windows (53). The backflushing device (60) has at least two mutually separate flushing chambers (64A, 64B) with associated gap opening (75) and has a hollow shaft (61) which is rotationally movable to a limited extent relative to the flushing chambers (64) and which has a first radial outlet (69A) and a second radial outlet (69B), wherein the direction of movement of the backflushing device (60) is reversible during the backflushing cycle, and, for both directions of movement, driving means (74) are provided for conjointly moving the flushing chambers (64) and hollow shaft (61) in the respective direction of movement.