Purification filter for liquids

Details Purification filter for liquids Purification filter for liquids

1974-07-26

1976-06-15

Hart, Charles N.

Liquid purification or separation

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

With rehabilitation means

210 80, 210292, B01D 2316, B01D 2320

Patent

active

039636208

ABSTRACT:
The present invention relates to a filter provided with a filter bed consisting of a granular material, which does not comprise layers of coarser material. In the filter bed at least one liquid distributor is arranged which defines an expansion space otherwise defined by areas of repose for the bed material, in which space at least one outflow opens above the areas of repose. The distributor is so designed, that the liquid can flow out of the openings with great energy and fill the cavity and fluidize the whole bed, which enables homogenous rinsing of the bed. The opening of the distributor is larger than the mean grain size of the filter bed material and allows fiber, pieces of plastic and similar impurities to pass through the distributor and be removed from the filter.

REFERENCES:
patent: 524155 (1894-08-01), Williamson et al.
patent: 879963 (1908-02-01), Hirt
patent: 2546650 (1951-03-01), Nijboer
patent: 3077987 (1963-02-01), Morimoto
patent: 3343680 (1967-09-01), Rice et al.
patent: 3395099 (1968-07-01), Johnson
patent: 3503505 (1970-03-01), Rensonnet
patent: 3717251 (1973-02-01), Hampton

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