A concentrator press

B - Operations – Transporting – 30 – B

Patent

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Details

B30B 9/24 (2006.01) B01D 33/04 (2006.01) D21C 9/18 (2006.01) D21F 1/80 (2006.01)

Patent

CA 2234097

A concentrator press includes a pair of rotatble press rolls (1) which coact with one another. The press rolls have apertured or perforated mantle surfaces (5) for removing liquid from a liquid-drenched material (3) to be concentrated and advanced between the press rolls. A part of the peripheral surface (5) of each press roll (1), including at least those regions in which the press roll acts on material undergoing concentration, is surrounded by a respective endless filter-cloth web (6, 7) which also runs around at least one direction changing roller (10; 10, 17, 18) at a distance from its associated press roll (1) and the still not concentrated, liquid-drenched material (3). The filter- cloth webs (6, 7) extend generally parallel with each other downstream of the press nip, to a concentrated material delivery station (15, 16).

La présente invention concerne une presse à épaissir qui comprend deux rouleaux de presse rotatifs (1), qui coopèrent l'un avec l'autre. Leurs surfaces d'enveloppe (5) présentent des ouvertures ou des perforations pour éliminer le liquide d'une matière qui en est saturée (3) et qui doit être concentrée et déplacée vers l'avant entre les rouleaux de presse. Chacun de ces rouleaux (1) est entouré sur une partie de sa surface périphérique (5), y compris au moins au niveau des zones dans lesquelles il agit sur la matière en cours de concentration, par une bande sans fin de tissu filtrant (6, 7), qui passe aussi autour d'au moins un rouleau de renvoi (10; 10, 17, 18) situé à une certaine distance du rouleau de presse qui lui correspond (1) et de la matière trempée, non encore concentrée (3). Les bandes de tissu filtrant (6, 7) sont sensiblement parallèles en aval de la zone de pression, jusqu'à un poste de livraison (15, 16) de la matière concentrée.

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