B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/31
B01D 33/327 (2006.01) B01D 33/19 (2006.01)
Patent
CA 1285497
ABSTRACT OF THE DISCLOSURE 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. 59
513604
Chamberlain Donald L.
Sweeney Robert J.
Freeport Minerals Company
Kirby Eades Gale Baker
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