Reactor with a stirring tool resistant to bending

Details Reactor with a stirring tool resistant to bending Reactor with a stirring tool resistant to bending

B - Operations, Transporting

01

J

B01J 19/18 (2006.01) B01D 1/22 (2006.01) B01J 10/02 (2006.01) C08G 63/78 (2006.01)

Patent

CA 2265541

The invention concerns a device, specially for the treatment of low-viscosity polymer melts. It is formed by a container (1) with a stirring tool, in which the stirring tool (6) consists essentially of a carrying structure that passes through the container and has surface-forming elements (8). According to the invention the carrying structure is designed in the shape of a cage-like girder assembly (7), thereby providing the following advantages: (1) incrustrations and non-homogeinities as a result of the possible continuous moistening or wiping of the surfaces are prevented; (2) the dwell time spectrum can be controlled through enhanced cascading with barrier plates, thereby also improving the quality of the product; (3) the bending of the stirring tool is diminished.

L'invention concerne un dispositif, utilisé en particulier pour le traitement de polymères en fusion à faible viscosité, comportant un récipient (1) pourvu d'un organe agitateur (6) qui est constitué principalement d'une structure porteuse qui traverse ledit récipient, sur laquelle sont disposés des éléments formant des surfaces (8). Selon l'invention, la structure de support est réalisée sous la forme d'un assemblage de barres (7) constituant une cage. Un tel agencement permet d'obtenir les avantages suivants: (1) grâce au mouillage ou à l'essuyage des surfaces en continu désormais possibles, les dépôts et les inhomogénéitées sont évitées; (2) grâce à la mise en cascade renforcée à l'aide de tôles de barrage, le spectre du temps de séjour peut être maîtrisé, ce qui augmente également la qualité du produit; la flexion de l'organe agitateur est réduite.

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