Beneficiation of ore and coal with ultrasound

B - Operations – Transporting – 03 – B

Patent

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Details

B03B 7/00 (2006.01) B01J 19/10 (2006.01) B03B 1/00 (2006.01) B03B 9/00 (2006.01) C10L 9/00 (2006.01)

Patent

CA 2213212

An apparatus for treating a slurry with ultrasound to improve separation based upon specific gravity comprises a plurality of modular conduit units (10, 11, 12) having substantially vertical walls defining a flow space through which a slurry may be pumped. Each modular conduit unit has mounted thereon ultrasound transducers (30, 31, 32) for transmitting ultrasound energy into the slurry being pumped through the modular conduit unit and means for exciting the ultrasound transducers in a frequency range of 60 to 100 kHz.

Un appareil de traitement aux ultrasons d'une suspension afin d'améliorer la séparation sur la base de la densité comprend une pluralité d'unités de conduits modulaires (10, 11, 12) présentant des parois verticales définissant un espace d'écoulement à travers lequel une suspension peut être pompée. Sur chaque unité de conduit modulaire sont montés des transducteurs à ultrasons (30, 31, 32) destinés à transmettre des ultrasons dans la suspension pompée, à travers l'unité de conduit modulaire, ainsi que des moyens d'excitation des transducteurs à ultrasons dans la gamme de fréquences comprise entre 60 et 100 kHz.

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