Device for dewatering or washing and dewatering suspensions

Details Device for dewatering or washing and dewatering suspensions Device for dewatering or washing and dewatering suspensions

B - Operations, Transporting

01

D

B01D 33/052 (2006.01) B01D 33/048 (2006.01) B30B 9/20 (2006.01) B30B 9/24 (2006.01)

Patent

CA 2202366

A device for dewatering and/or washing suspensions, in particular suspensions of fibrous materials, has two dewatering rollers (5, 6) that turn in opposite directions and at least two other guiding rollers (7, 8), in particular press- rollers. Each endless screen of a pair of endless sieve or filter screens (9, 10) is guided over a dewatering roller and a guiding roller. The suspension to be dewatered or washed flows through the gap between both screens and is dewatered therein. The device is mainly characterised in that the gap between both screens is vertical and in that screen guiding means (15) are provided in the area of said vertical gap.

Un dispositif de déshydratation et/ou de lavage de suspensions, notamment de suspensions de matières fibreuses, comprend deux rouleaux de déshydratation (5, 6) qui tournent en sens contraire, et au moins deux autres rouleaux de guidage (7, 8), notamment des rouleaux presseurs. Chaque toile d'une paire de toiles sans fin de criblage ou de filtration (9, 10) est guidée sur un rouleau de déshydratation et sur un rouleau de guidage. La suspension à déshydrater ou à laver s'écoule à travers l'espace formé entre les deux toiles et y est déshydratée. Le dispositif se caractérise surtout en ce que l'espace formé entre les deux toiles est vertical et en ce qu'un dispositif de guidage (15) des toiles est monté dans cet espace vertical.

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