CARTRIDGE FILTER Russian patent published in 2009 - IPC B01D27/02 B01D24/08 

FIELD: treatment facilities.

SUBSTANCE: invention is designed for removing suspended particles, organic substances, heavy metal ions from industrial and domestic liquids. The filter comprises a vertical cylindrical removable casing connected by a clamp or a flange joint to one of the several unified distributors. There are two pipes and one filtering element that form communicating volumes inside the casing; the element is made as two vertical cylindrical holed bowls shifted in respect to the cartridge axle, without holes in the upper part. Filtering material is set between the bowls for 0.75-0.95 of the volume. Holes on the upper end face of the casing are matched with the distributor branch pipes connecting two casing openings to the first main channel for the supply of the liquid being purified, the pipes' outlets - to the second channel for the washing liquid supply, one of the three openings at the frame top - to the third channel for the washing liquid withdrawal; opening of the axial channel - to the fourth main channel for the pure liquid withdrawal. The channels are placed at different levels lowering from the first channel to the fourth one. Discharge and intake branch pipes are provided for in the filter design.

EFFECT: high treatment efficiency without pressure equipment, unconditioned composition of cartridges set in one assembly, fitting at the working areas in out-of-the way places or in places with limited space.

5 cl, 5 dwg