Filter sector for use in rotary disc filters for separating...

Details Filter sector for use in rotary disc filters for separating... Filter sector for use in rotary disc filters for separating...

D - Textiles, Paper

21

D

D21D 5/16 (2006.01) B01D 33/23 (2006.01) D21D 5/04 (2006.01) D21F 1/66 (2006.01)

Patent

CA 2512445

A filter sector (1) for use in rotary disc filters for separating pulp suspensions comprises opposite filtration walls (2) of a substantially rigid, wherein a filtrate chamber (4) is formed between the filtration walls for receiving filtrate that has flowed through the filtration walls. Each filtration wall is profiled to form a multiplicity of cavities (5) and humps (6), and each cavity and hump, respectively, includes a multiplicity of meshes of the net. The provision of cavities and humps increases the effective filtering area of the filter sector, which results in increased capacity of the filter sector.

L'invention concerne un segment de filtre (1) utilisable dans des filtres à disques rotatifs pour séparer des suspensions pulpaires. Le segment de filtre comprend des parois filtrantes (2) opposées, sensiblement rigides. Une chambre à filtrat (4) est formée entre les parois filtrantes pour recevoir le filtrat s'écoulant au travers des parois filtrantes. Chaque paroi filtrante est profilée de façon à former plusieurs cavités (5) et bosses (6), et chaque cavité et chaque bosse comprend, respectivement, plusieurs mailles du filet. La présence de cavités et de bosses augmente la surface filtrante utile du segment de filtre et, partant, la capacité de ce dernier.

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