Liquid purification or separation – Filter – Movable medium
Patent
1971-02-24
1976-03-23
Adee, John
Liquid purification or separation
Filter
Movable medium
210396, B01D 3302
Patent
active
039459241
ABSTRACT:
In mechanical filters, structure is provided for mounting a string-like member in closely spaced relation to its moving filter medium. At least one pick mounted on a rotating shaft is provided for periodically plucking the string-like member so that the string-like member vibrates against the filter medium. A rod mounted perpendicular to the path of movement of the filter medium past the string-like member acts as a guide to prevent the pick from catching the string-like member and controls the vibration of the string-like member in a plane substantially perpendicular to the path of movement of the filter medium thereby to obtain the most effect of the impact. The vibration or slapping of the string-like member against the filter medium causes filter cake formed thereon to be detached therefrom or to be compacted. In a belt-type of drum filter, the string-like member is preferably located between the breaker and discharge rolls.
REFERENCES:
patent: 2232618 (1941-02-01), Magill
patent: 2395499 (1946-02-01), Oliver et al.
patent: 2932402 (1960-04-01), Logue et al.
patent: 3321892 (1967-05-01), Jacques
patent: 3485366 (1969-12-01), Evans
Adee John
Klaas Bruce G.
Peterson Filters & Engineering Company
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