FILTER SECTOR Russian patent published in 2002 - IPC

FIELD: filtration. SUBSTANCE: filter sector for filtering disk of revolving filter unit includes two interconnected plate elements made from sheet material of small thickness; each of them has main flat part. Projections made in plate elements extend outside from respective main flat part. They are used for keeping the filtering cloth at distance from respective main flay part. Material of plate element is provided with continuous parallel ridges which pass filter sector in first direction. Projections of second direction are perpendicular to first direction; each projection embraces at least two adjacent ridges. Side adjacent projections are shifted relative to each other in longitudinal direction by at least pitch between adjacent ridges. Rise of ridges above main flat is lesser than above-mentioned distance; plate elements are interconnected in main flat parts. EFFECT: enhanced efficiency of filtration. 8 cl, 13 dwg