Filtering apparatus

Details Filtering apparatus Filtering apparatus

1990-06-22

1994-11-29

Cintins, Ivars

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With rehabilitation means

B01D 2446

Patent

active

053687302

ABSTRACT:
The present invention relates to a filtering apparatus and the method of washing such an apparatus. The filtering apparatus with an upward flow of a fluid to be treated in an enclosure (7) closed at least at one end (15) and containing a fixed floating bed of filtering particles (16) of a density less than that of the fluid to be treated, is characterized in that the pipe (3) for discharging the filtered materials in suspension has the form of a lyre with vent (5) and dimensions allowing the column of fluid contained in the enclosure to be emptied at a speed higher than the minimum fluidization speed, the filtering particles having a characteristic mass per unit volume between 5 kg/m.sup.3 and 500 kg/m.sup.3 and a pipe (1) for intake of the fluid to be treated is disposed in a zone at the lower end of the enclosure situated below the lower level of the fixed floating bed and above the upper level (30) of the waste discharge pipe (3).

REFERENCES:
patent: 4115266 (1978-09-01), Ohshima

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