B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/13.2
B01D 63/02 (2006.01)
Patent
CA 1282345
ABSTRACT A concentrator for concentrating the fine solids of a liquid feed suspension has a shell (100) within which there is a bundle of microporous fibres (102). Pressurized feed suspension is introduced through inlet (105) and passes over the external walls of the fibres (102) with the clarified liquid being drawn from the lumens of the fibres (12) and the concentrated feed being discharged through outlet (107). The solids retained within the shell are removed by first applying a pressurized liquid and then applying a gas at a pressure sufficient to ensure that the gas will pass through the larger pores of the fibres to remove the solids from the shell (11) through outlet (17) to an external collection point. The fibres (102) are enclosed within a variable volume diaphragm (108) located within diaphragm holder (109) by spaced plugs (106). The volume of the diaphragm is altered by varying the pressure of a fluid introduced through inlet (110) to the space between the diaphragm (108) and holder (109).
506288
Ford Douglas Lyons
Kopp Clinton Virgil
Mccarthy Tetrault Llp
Memtec Limited
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