B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
B07B 1/40 (2006.01) B01D 33/03 (2006.01) B06B 3/00 (2006.01) B07B 1/42 (2006.01) B07B 1/46 (2006.01) B07B 1/52 (2006.01) B07B 1/54 (2006.01) B07B 13/16 (2006.01) G10K 11/02 (2006.01) G10K 11/18 (2006.01)
Patent
CA 2140755
A device for sifting, sorting, screening, filtering or sizing dry solid substances of solid substances in liquids has a sifting surface arranged in a sifting frame and an ultrasonic transducer associated thereto, through which vibrations may be transmitted to the sifting surface. At least one resonator arranged on the sifting surface is associated to the ultrasonic transducer, is tuned to the resonance of the ultrasonic transducer and may be made to vibrate, in particular with bending vibrations, by the ultrasonic transducer. The resonator which in one embodiment is arranged at the middle of the sifting surface is provided with resonance-transmitting, finger-like elements which radially extend away from the resonator over the sifting surface and act as rod resonators.
Un dispositif de criblage, de triage, de séparation, de filtrage ou de tamisage de substances solides sèches ou de substances solides dans des liquides comprend une surface de criblage située dans un cadre de criblage et un transducteur ultrasonique (10) associé à la surface de criblage (18) de manière à lui transmettre des vibrations. Au moins un résonateur (14) monté sur la surface de criblage (18) est associé au transducteur ultrasonique (10), est accordé sur la résonance du transducteur ultrasonique et peut être soumis à des vibrations par celui-ci, notamment à des vibrations de flexion. Ce résonateur (14), qui, dans un mode de réalisation, est montée au centre de la surface de criblage (18), est pourvu d'éléments (16) transmettant la résonance, similaires à des doigts qui s'étendent radialement à partir du résonateur (14), sur la surface de criblage (18), et servent de barres de résonance.
Frei Karl
Solenthaler Jurgen
Marks & Clerk
Telsonic Ag
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