Side sealing arrangement for sieve devices

Details Side sealing arrangement for sieve devices Side sealing arrangement for sieve devices

B - Operations, Transporting

07

B

B07B 1/46 (2006.01) B07B 1/48 (2006.01)

Patent

CA 2151247

The invention relates to a side sealing arrangement for sieve devices which has a grate comprising a plurality of grate rods (3, 4) which are alternately movable and immovable with respect to the side walls (2) and which are connected by flexible sieve components (6) which are secured to the grate rods, bridge the gaps between the latter and can be moved, that is tensioned and released, by the movable grate rods, the side sealing arrangement (8) which is made of flexible material being rigidly connected firstly to the sieve components (6) and secondly to side frame parts and comprising sealing sheets (8) which overlap one another in an imbricated manner. In order to increase the useful life of the sealing sheets and to improve the sealing properties, the invention proposes that, viewed in the sieving direction, each sealing sheet (8) extends between two grate rods (3) which are stationary relative to the side wall (2).

L'invention a pour objet un dipositif assurant une étanchéité latérale pour des agencements de tamis, comprenant une grille présentant plusieurs barreaux (3, 4) alternativement mobiles et fixes par rapport aux parois latérales (2), lesdits barreaux étant raccordés par des éléments souples de tamis (6) fixés sur ces barreaux, pontant les espaces entre ces barreaux et pouvant être déplacés, à savoir, tendus ou détendus, au moyen des barreaux mobiles. Le dispositif d'étanchéité latérale (8) formé d'un matériau souple, est relié rigidement, d'une part aux éléments de tamis (6) et, d'autre part, aux éléments latéraux du cadre et est constitué par des feuillets d'étanchéité se chevauchant mutuellement de façon imbriquée (8). Afin d'accroître la durée de vie des feuillets et d'améliorer les propriétés d'étanchéité, le dispositif selon l'invention est caractérisé en ce que chaque feuillet d'étanchéité (8) s'étend, dans le sens de tamisage, entre deux barreaux de la grille (3) qui sont fixes par rapport à la paroi latérale (2).

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