Filter apparatus

Details Filter apparatus Filter apparatus

1990-01-11

1991-12-03

Nozick, Bernard

Liquid purification or separation

Plural distinct separators

Filters

210224, 210409, B01D 2400

Patent

active

050697919

ABSTRACT:
A filter apparatus having a plurality of filter zones that are disposed one above the other and have associated therewith at least one common unfiltered fluid channel and at least one common filtrate channel. Each filter zone has at least one filter sheet, which is provided on a filter element, serves for the deposition of a cake layer formed from at least one filtering aid, and separates a filtrate collection area that opens into the filtrate channel from a filling space disposed above the filter sheet. Provided for each filter zone is an annular distribution space, which extends about the central axis of the filter, opens into the filling space at its outer periphery, and in the region of the central axis of the filter communicates with the unfiltered fluid channel. In order, while having a simplified structure, to achieve an optimum manner of operation, the unfiltered fluid channel is surrounded by the filter zones and is disposed in the vicinity of the central axis of the filter, where it opens directly into the distribution spaces via inlet openings.

REFERENCES:
patent: 984704 (1911-02-01), Rarick
patent: 3206034 (1965-09-01), Anderson

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