D - Textiles – Paper – 21 – D
Patent
D - Textiles, Paper
21
D
D21D 5/00 (2006.01) D21D 5/02 (2006.01)
Patent
CA 2585569
A system and a method for treating a fibrous suspension, which is cleaned in a screening room comprising a plurality of cleaning stages and with a last cleaning stage, in which the cleaning takes place at low fiber concentration, and where at least a partial flow of the accept from the last cleaning stage at recycling to a position before or in the screening room passes through a thickener, where the concentration of the accept is increased to a concentration, which minimizes the dilution of the concentration of the fiber suspension, to which the accept is supplied.
La présente invention concerne un système et un procédé de traitement d'une suspension fibreuse, laquelle est épurée dans une salle de tamisage comprenant une pluralité d~étapes d~épuration, dont une dernière étape d~épuration. Au cours de cette dernière étape, la concentration en fibres est faible et au moins un flux partiel de l~accepté provenant de la dernière étape d~épuration et étant recyclé avant ou dans la salle de tamisage traverse un épaississant, ce qui permet d~accroître la concentration en accepté jusqu~à une concentration minimisant la dilution de la concentration de la suspension de fibres que l~on alimente en accepté.
Andersson Rickard
Carlsson Johan
Fetherstonhaugh & Co.
Metso Paper Inc.
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