Liquid purification or separation – Plural distinct separators – Filters
Patent
1985-11-14
1988-01-26
Hruskoci, Peter
Liquid purification or separation
Plural distinct separators
Filters
210330, 2103331, 210344, 210345, B01D 3508
Patent
active
047215666
ABSTRACT:
Tilting filter pans is disclosed having generally parallel leading and trailing sidewalls which are sloped at an angle to permit increased filtration rates for a predetermined filtering efficiency, and also to permit increased filtering efficiency where the feed rate is constant. The feed is a slurry from which the liquid is removed, and the filter cake being dumped by rotation of each filter pan at a predetermined point of movement of the filter pan along a cyclical path. Hold-down devices having a reduced volume are also used in combination with the improved pan design, so that an increased filtration rate is possible due to decrease in the required filter cake height. A cam arrangement is provided for turning the pans with minimum stress in a minimum length of pan travel, while avoiding collisions between adjacent pans and while permitting washing of each pan.
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Chamberlain Donald L.
Sweeney Robert J.
Freeport Minerals Company
Hruskoci Peter
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