Improved formation in a two fabric paper machine

Details Improved formation in a two fabric paper machine Improved formation in a two fabric paper machine

D - Textiles, Paper

21

F

D21F 1/00 (2006.01) D21F 1/20 (2006.01) D21F 1/48 (2006.01) D21F 9/00 (2006.01)

Patent

CA 2162126

A forming section for 8 two-fabric paper machine using formation blades having shallow cavities in their top surfaces which withdraw fluid from the stock and propel it back through the fabric so as to break up the flocculated mat without causing excessive drainage and loss of fines. The parameters required to design the blade cavity, the top surface of the blade, and the angles of wrap of the fabrics about the blades so as to obtain best results are provided.

Section de formation destinée à une machine à papier à deux tissus utilisant des lames de formation comprenant des cavités peu profondes dans leurs surfaces supérieures qui prennent du fluide dans la réserve et l'envoient dans le tissu pour briser le matelas flocculé sans produire un drainage et une perte de fines particules excessifs. L'invention concerne aussi les paramètres nécessaires pour concevoir la cavité de la lame, la surface supérieure de la lame et les angles d'enroulement des tissus autour des lames qui permettent d'obtenir les meilleurs résultats.

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