Liquid purification or separation – Filter – Movable medium
Patent
1984-12-10
1986-02-04
Adee, John
Liquid purification or separation
Filter
Movable medium
210401, 210498, B01N 2902
Patent
active
045684600
ABSTRACT:
A liquid filter is disclosed including a filter chamber into which extends a looped endless belt which is passed above and below rollers on either side of the filter chamber. Both the upper and lower belt segments pass over a support plate in the filter chamber, the lower segment positioned directly underneath the upper belt segment. Filtering flow from the filter chamber passes through both belt segments and through spaced and tapered openings in the support plate and then into a collection trough beneath the support plate. The belt is periodically advanced to carry filter solids out of the filter chamber. In a first version, the upper belt segment acts as the filter media, and is wider to create a sealing of the lateral edges of the upper belt segment. In a second version, a disposable media lies atop both belt segments which act only to carry the disposable media and the disposable media is of wider width to establish the edge sealing. Spaced elongated bars are disposed within the collection trough supporting the bottom of the support plate with spaces between the trough rim and the bars, enabling flushing of the trough interior to remove accumulated fine solid particles. A plurality of filter units may be vertically stacked, with the collection trough of one unit forming the top of the next below filter unit.
REFERENCES:
patent: 2813632 (1957-11-01), Muller
patent: 3899426 (1975-08-01), Hins
patent: 4168236 (1979-09-01), Bahr
patent: 4343701 (1982-08-01), Parshall
patent: 4346003 (1982-08-01), Polyakov et al.
patent: 4362617 (1982-12-01), Klepper
Adee John
Benefiel John R.
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