Vacuum drying diaphragm filter press plates

Details Vacuum drying diaphragm filter press plates Vacuum drying diaphragm filter press plates

B - Operations, Transporting

01

D

B01D 25/12 (2006.01) B01D 25/00 (2006.01) C02F 11/12 (2006.01)

Patent

CA 2225084

A filter press plate (10) having a one piece outer shell (26), rotationally molded out of cross-linked polyethylene, providing an inner cavity filled with a structural polyurethane foam core (24), wherein the outer shell (26) and inner core (24) are adapted to delaminate so that in the filtration area the shell can be expanded out by pressurizing the inner core (24) with a fluid.

L'invention porte sur des plaques de filtre-presse (10) pour filtres comportant une enveloppe extérieure (26) d'une pièce obtenue par rotomoulage de polyéthylène réticulé et constituant une cavité intérieure destinée à être remplie d'un noyau (24) de mousse de polyuréthane. L'enveloppe extérieure (26) et le noyau (24) sont conçus pour se décoller, de sorte que dans la zone de filtrage l'enveloppe peut se dilater lorsque le noyau (24) est soumis à la pression d'un fluide.

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