B - Operations – Transporting – 03 – B
Patent
B - Operations, Transporting
03
B
B03B 5/42 (2006.01) B03B 11/00 (2006.01)
Patent
CA 2152068
The present invention relates to a system for separating solid particles in two fractions by means of a medium, the specific gravity of said medium situating in between the specific gravity of the particles of the first fraction and the specific gravity of the particles cf the second fraction. The preferred system comprises: (a) a scrolled barrel consisting of a central mid section in which the separation takes place; (b) a means associated with said barrel for driving it rotatively along its longitudinal center line; (c) means for feeding or injecting into the barrel both the solid particles to be separated as well as the medium effecting this separation; (d) a means for removing the sink fraction from said central mid-section; (e) a means for removing the float fraction from the central mid-section, and (f) a means to prevent the float particles from crossing over into the sinks and thus reporting with the sink particles. The invention relates to a process for media separation.
L'invention concerne un système qui permet de séparer des particules solides en deux fractions grâce à un milieu dont le poids volumique est intermédiaire entre celui des particules de la première fraction et celui des particules de la deuxième fraction. Dans sa variante préférée, le système comprend: a) un tambour tournant (1) doté d'une section médiane centrale où intervient la séparation; b) un dispositif (9) associé à ce tambour (1) pour entraîner sa rotation le long de son axe longitudinal; c) un dispositif (5) d'alimentation ou d'injection amenant dans ce tambour tant les particules solides à séparer que le milieu permettant cette séparation; d) un dispositif (6) de retrait de la fraction submergée depuis cette section médiane centrale; e) un dispositif (8) de retrait de la fraction flottante depuis cette section médiane centrale, et f) un dispositif (28, 30) qui empêche les particules flottantes de se diriger vers les particules submergées et donc de se mélanger avec elles. L'invention concerne aussi un procédé permettant la séparation des milieux utilisés.
Olivier Paul
Robic
LandOfFree
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