Dry granulation in a gas stream

A - Human Necessities – 61 – N

Patent

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Details

A61N 5/06 (2006.01) A61J 3/06 (2006.01) A61J 3/10 (2006.01) A61K 9/20 (2006.01) B07B 1/24 (2006.01) B07B 7/06 (2006.01)

Patent

CA 2742759

It is disclosed an apparatus wherein the gas enters from the opening 4 located in a part of the compaction chamber 3 and is dragged through a granulator 5, a fractioning device 12, a special cyclone 11 and a filter system 8A to a suction fan, which creates the gas stream. In such apparatus the bulk to be compacted 1, the fine particles to be compacted again and the compacted bulk have the same flow direction than the carrier gas. Due to its complete or partial impermeability, the structure of said apparatus makes also possible the use of a gas different from normal air. This is important when the bulk is sensible to oxygen. Image

L'invention concerne un appareil conçu pour que du gaz entre par l'ouverture (4) située dans une partie de la chambre de compactage (3), et soit attiré à travers un dispositif de granulation (5), un dispositif de fractionnement (12), un cyclone spécial (11) et un système de filtrage (8a) vers un ventilateur aspirant, qui crée le flux de gaz. Dans cet appareil, les fines particules devant être compactées à nouveau (1) et la masse compactée ont la même direction de circulation que le gaz porteur. Du fait de son imperméabilité complète ou partielle, la structure dudit appareil permet également l'utilisation d'un gaz différent de l'air normal. Ceci est important lorsque la masse est sensible à l'oxygène.

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