METHOD OF LIQUID CLEANING FROM DISPERSED PHASE AND LIQUID CLEANING FILTER Russian patent published in 2000 - IPC

FIELD: cleaning of liquid. SUBSTANCE: filter containing granulated charge has body, gas lift and separator for periodical washing of charge. Filter includes cavity for reception of filtrate and separation of charge grains and contamination particles. Source liquid is passed continuously through layer of granulated charge in direction from bottom to the top. Rising flow of filtrate is directed to separator and removed from the latter during filtration. When washing by means of rising flow of filtrate charge grains coming from gas lift are washed out, thereby preventing contact of contamination with washed-out grains of charge. EFFECT: simplified construction of filter. 3 cl, 1 dwg