FILTER Russian patent published in 2013 - IPC B01D25/00 

FIELD: process engineering.

SUBSTANCE: invention relates to filtration and may be used in whatever industry for filtration and filtration elements recovery in natural water treatment, in chemical, petrochemical industries, metallurgy, etc. Filter comprises cylindrical case, filtration elements and flushing means composed of flushing fluid feed pipe with distribution chamber arranged at its top part. Guide tubes with perforated tubes extending there through are welded to distribution chamber generatrix and spaced apart regularly in circumference. Perforations represent lines of radial jet forming holes extending along every tube while central line of said holes is located in normal to every tubular filtration element with external filtration surface representing a slotted grating shaped to cylindrical helix of high-precision V-shape section.

EFFECT: improved operating performances and filter recovery, lower costs.

8 cl, 5 dwg