FILTER FOR PURIFICATION OF LIQUIDS Russian patent published in 2002 - IPC

FIELD: designs of continuous sectional filtering devices for purification of liquids under pressure with automatic countercurrent washing of filtering partition. SUBSTANCE: filter has a casing accommodating filter members located over circumference with filtering cartridges and means for regeneration including turning branch pipe, airtight chambers connected with compressed air source. Built in bottom of airtight chamber is a tube which lower end is located in lower part of filtering cartridge and has a check valve. Regeneration means additionally has rigid hydrofobic fibers located in gap between filtering partition of filtering cartridge and tube. EFFECT: higher filter efficiency due to reduced regeneration time. 2 dwg