B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 37/00 (2006.01) B01D 33/03 (2006.01)
Patent
CA 2487134
A vibratory screening machine (10) including a frame (11, 12), a vibratory motor (42) on said frame, a bed (69, 104, 110, 111) on the frame (12), a plurality of screens (112) on the bed, a chamber (73, 74, 75) below each of the screens, and a source (159) of suction and pressure in communication with each of the chambers (73, 74, 75). A method of screening a slurry containing a mixture of fine and coarse particles and liquid including the steps of providing a vibratory screen (112), passing the mixture across the vibratory screen, applying suction on the opposite side of the vibratory screen from the mixture to draw liquid and fine particles from the mixture through said screen and into a chamber (73) below the screen, and either intermittently terminating the suction or applying pneumatic pressure to the chamber.
La présente invention concerne une machine criblante vibrante (10) comprenant un châssis (11, 12), un moteur vibrant (42) sur ce châssis, un lit (69, 104, 110, 111) sur le châssis (12), une pluralité de cribles (112) sur le lit, une chambre (73, 74, 75) en dessous de chaque crible, et une source (159) d'aspiration et de pression en communication avec chacune des chambres (73, 74, 75). L'invention concerne également un procédé de criblage d'une boue contenant un mélange de particules fines et grossières et de liquide. Pour ce procédé, on dispose d'un crible vibrant (112) au travers duquel on fait passer le mélange en appliquant l'aspiration sur la face du crible vibrant opposée au mélange pour aspirer le liquide et les fines particules du mélange au travers dudit crible et les faire arriver dans une chambre (73) en dessous du crible. Pour terminer, soit on interrompt par intermittence l'aspiration, soit on applique une pression pneumatique dans la chambre.
Derrick Mitchell James
Derrick Robert Gordon
Mooney James Arthur
Deeth Williams Wall Llp
Derrick Corporation
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