Apparatus for dewatering/pressing in combination with...

D - Textiles – Paper – 21 – C

Patent

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Details

D21C 9/02 (2006.01) B01D 29/11 (2006.01) B30B 9/12 (2006.01) B30B 9/26 (2006.01) D21C 9/18 (2006.01)

Patent

CA 2230115

A feed and dewatering device for dewatering/squeezing/washing of fiber pulp etc. comprising one section (1) for inlet, one section (2) for dewatering/squeezing, one section (3) for adding and mixing of washing liquid, one section (4) for the final dewatering/squeezing and one section (5) for outlet of treated material. The dewatering in zone (2) exists between a converging screen basket and a diverging screw core and dewatering in zone (4) between a cylindrical screen basket and a diverging screw core.

Cette invention concerne un dispositif d'alimentation et d'essorage de la pâte à papier conçu pour essorer, pressurer et laver une pâte de cellulose. Ce dispositif comporte une première partie (1) permettant l'introduction de la pâte, une partie (2) conçue pour l'essorage ou le pressurage, une partie (3) permettant l'ajout de liquide détergent et le mélange avec ledit liquide, une partie (4) conçue pour l'essorage ou le pressurage final et enfin une partie (5) conçue pour l'evacuation de la matière traitée. L'essorage effectué dans la partie (2) se déroule entre un panier de tamisage convergent et un noyau de vis divergent, et l'essorage effectué dans la partie (4) se déroule entre un panier de tamisage cylindrique et un noyau de vis divergent.

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