Method and device for mechanically separating a disperse system

Details Method and device for mechanically separating a disperse system Method and device for mechanically separating a disperse system

B - Operations, Transporting

04

C

B04C 11/00 (2006.01) B04C 5/02 (2006.01) B04C 5/04 (2006.01)

Patent

CA 2348385

The invention relates to a method for mechanically separating a disperse system into two or more disperse systems, said systems having different features, in a centrifugal separator, and to a device suited for carrying out the inventive method. Based on the disadvantages of the prior art, the aim of the invention was to create a method of the type in question with which it is possible, without large structural changes, to be able to vary the degree of solids recovery independent of fluid flow rate to a large extent and to influence the size of separation and the sharpness of separation. To these ends, the partial streams (7, 8) are partitioned to feed channels (1, 2) which, in the centrifugal separator, differ in the cross-sectional areas thereof at the points of entry (S1, S2). During the partitioning of the partial streams to more than two tangential feed channels (1, 2, 12, 13), the cross-sectional areas (2) and (13) or (1) and (12) are formed from the sum of the cross-sectional areas of the feed channels which are in contact with the respective partial stream (7 or 8), and therefore the sums of the cross- sectional areas of the respective partial streams (7 or 8) differ at the points of entry (S2, S13 or S1, S12) into the centrifugal separator.

L'invention concerne un procédé pour la séparation mécanique, dans un séparateur centrifuge, d'un système dispersé en deux ou plusieurs systèmes dispersés ayant des propriétés différentes, ainsi qu'un dispositif convenant à la réalisation du procédé. Partant des inconvénients liés à l'état connu de la technique, l'invention vise à créer un procédé du type en question permettant, sans modifications structurelles importantes, de faire varier de manière importante le degré de séparation indépendamment du débit de fluide et d'influer sur la maille et la précision de séparation. A cet effet, on partage les flux partiels (7, 8) en conduits d'alimentation (1, 2) se distinguant par la superficie de leur section au niveau des points d'entrée (S¿1?, S¿2?) dans le séparateur centrifuge. En cas de partage des flux partiels en plus de deux conduits d'alimentation tangentiels (1, 2, 12, 13), on calcule les superficies de section (2 et 13 ou 1 et 12) en additionnant les superficies des sections des conduits d'alimentation reliés au flux partiel correspondant (7 ou 8), les sommes des superficies des sections des flux partiels respectifs (7 ou 8) différant ainsi aux points d'entrée (S¿2?, S¿13? ou S¿1?, S¿12?) dans le séparateur centrifuge.

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