D - Textiles, Paper
21
D
D21D 5/16 (2006.01) D21B 1/34 (2006.01)
Patent
CA 2756878
The invention relates to a strainer for treating a fibrous material suspension suitable for producing a paper, cardboard, tissue, or other fibrous material web, having a plurality of strainer perforations (1, 2), the smallest cross-sectional areas of which are approximately of the same size. The sorting effect and the throughput are to be im-proved such that the cross-sectional areas of the strainer perforations (1, 2) on the inflow side have varying sizes.
L'invention concerne un tamis destiné au traitement d'une suspension de matière fibreuse apte à la fabrication d'une bande de papier, de carton, de tissu ouaté ou d'une autre matière fibreuse, ce tamis comportant une pluralité d'ouvertures (1,2) dont l'aire de section minimale est pratiquement identique. Selon l'invention, l'aire de section côté entrée des ouvertures (1,2) varie afin d'améliorer l'effet de tri et le débit.
Sim & Mcburney
Voith Patent Gmbh
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