Screening rake

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 33/04 (2006.01) E02B 5/08 (2006.01) E02B 8/02 (2006.01)

Patent

CA 2108253

The invention concerns a screening rake for removing solids from flowing sewage, the rake having a driven screening belt which can be immersed in the sewage and which has two lateral chains. A group of screening elements fitted with hooks is mounted on each of two support rods independently of the preceding and following group of screening elements. The screening elements in each group have extension pieces which project beyond the two associated support rods in the direction of travel of the screening belt and in the opposite direction. The extension pieces of successive groups of screening elements engage with each other like the teeth of a comb.

Un râteau cribleur pour l'extraction de matières solides d'un flux d'eaux usées présente une bande cribleuse sans fin (5) entraînable et montable dans le flux d'eaux usées, laquelle possède deux chaînes articulées latérales (11). A chaque fois un groupe d'éléments cribleurs munis de crochets est disposé sur deux barres de support indépendamment des groupes d'éléments cribleurs qui précèdent et suivent. Les éléments cribleurs de chaque groupe présentent dans le sens du défilement de la bande, et en sens opposé, des prolongements d'élément dépassant des deux barres de support associées. Les prolongements d'éléments des groupes successifs d'éléments cribleurs s'interpénètrent comme des peignes.

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