B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 2/18 (2006.01) A61J 3/06 (2006.01) B01J 2/04 (2006.01)
Patent
CA 2166708
The invention pertains to a device used to manufac- ture pastilles or pellets by shearing a stream of an extruded mass subject to forces of inertia. The invention consists of a curved tube (2) in which the mass is circulated and which is provided with numerous drilled holes (3) which are sit- uated along a generatrix and through which the mass is expelled at high speed. The tube is forcefully moved (ag- itated) in order periodically to divide the extruded stream into pieces and in this way break off "drops", which can then be cooled on a flat surface to form pastilles or shaped in free fall into a spherical granulate. An advantageous design involves a percussive device, where the movement is sustained by piezoelectric ceramics: the tube alternately strikes against two rows of metal stops (5) which are re- inforced with piezoelectric ceramics (11) and thus impart to the tube the energy lost at the moment of impact and as a result of friction. The device is primarily suited for the pharmaceutical chemical and agricultural feed industries.
L'invention concerne un dispositif pour la fabrication de pastilles ou de pilules par cisaillement d'un courant de matière extrudée sous l'action de forces d'inertie. Ce dispositif comprend un tube coudé (2), où circule la matière, et pourvu de nombreux alésages (3) disposés selon une génératrice. La matière est expulsée à grande vitesse à travers ces alésages. Le tube est agité vigoureusement afin de diviser périodiquement le jet extrudé en fragments et de séparer ainsi les "gouttes" qui peuvent ensuite être refroidies sur une surface plane pour donner des pastilles ou être transformées en granulés sphériques en chute libre. Selon un mode avantageux de réalisation, le dispositif est un système à percussion, le mouvement étant conservé par des céramiques piézoélectriques: le tube heurte alternativement deux rangées de butées métalliques (5) qui sont renforcées par des céramiques piézoélectriques (11) et fournissent ainsi au tube l'énergie perdue au moment de l'impact et par friction. Ce dispositif est principalement adapté aux industries pharmaceutique, chimique et agroalimentaire.
Gowling Lafleur Henderson Llp
Santrade Ltd.
LandOfFree
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