Device for removing fine-grained or dust-like solids from a...

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 8/00 (2006.01) B65D 88/72 (2006.01) B65D 90/02 (2006.01)

Patent

CA 2716997

With a device for removal of fine-grained or dust-like solids from a container that is to be pressurized or is pressurized, whereby the container is equipped with a double-walled discharge cone or funnel, a solution is supposed to be created with which the use of porous materials, such as sintered metals or the like, in particular, is avoided, while making available good conveyance properties in the transfer funnel, without restricting the grain sizes of the material, in each instance, whereby even particle-charged gas can be used for conveyance. This is achieved in that the gas exit openings are larger than the largest particles of the solid to be removed, and that the gas exit openings (4) are provided with a pipe connector or gas feed channel (4a) that projects into the interior of the ring chamber (6) and has at least one angle with an imaginary horizontal plane, and that the gas feed channel (4a) is part of a retention device (12) for preventing solid from trickling into the ring chamber (6).

L'invention concerne un dispositif servant à extraire une matière solide à grains fins ou pulvérulente contenue dans un réservoir soumis ou devant être soumis à une surpression, ledit réservoir étant équipé d'un cône ou d'une trémie de décharge à double paroi. Le but de l'invention est de fournir une solution permettant d'éviter en particulier l'utilisation de matières poreuses, telles que des métaux frittés ou analogues, et d'obtenir de bonnes caractéristiques de transport dans la trémie de transport sans limiter les tailles de grains de la matière respective, un gaz chargé de particules pouvant également être utilisé pour le transport. A cet effet, la taille des orifices de sortie de gaz est supérieure à celle des plus grosses particules de matière solide à extraire; les orifices de sortie de gaz (4) sont pourvus d'une tubulure ou d'un canal d'alimentation en gaz (4a), qui s'étend à l'intérieur de l'espace annulaire (6) et forme au moins un angle avec un plan horizontal imaginaire, et le canal d'alimentation en gaz (4a) fait partie d'un dispositif de retenue (12) destiné à empêcher l'écoulement de matière solide dans l'espace annulaire (6).

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