C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/40 (2006.01) B01D 17/02 (2006.01) E02B 15/04 (2006.01)
Patent
CA 2403454
The invention refers to a device for separating a surface layer of a liquid by a container (6) submerged in the liquid. The container includes a bottom (7), a wall member (8), connected to the bottom and having a variable length, and a separating member (9), which is connected to the wall member and communicates with a space (10) in the container via an opening. An overflow portion (11) of the separating member is located below a free liquid surface of the surface layer and permits the flowing of liquid. A discharge conduit (4) extends from the space for liquid discharge. A floating member (15), connected to the separating member, floats on the liquid outside the container and exerts a lifting force upon the separating member in a direction prolonging the wall member. A submerging member (16) is connected to the separating member and located below the over flow portion. The submerging member (16) has a mass and exerts a downwardly directed force, so that the overflow portion is located below the free liquid surface, and a lifting force due to liquid pressure when the space has been filled with such a quantity of liquid that the submerging member partly is located in the liquid, wherein the overflow portion will be above the free liquid surface.
L'invention concerne un dispositif permettant de séparer une couche superficielle d'un liquide au moyen d'un conteneur (6) immergé dans ledit liquide. Ledit conteneur comprend un fond (7), une paroi (8), fixée sur ledit fond et de longueur variable, et un élément (9) de séparation, qui est relié à la paroi et qui communique avec un espace (10) du conteneur via une ouverture. Une partie de trop-plein (11) de l'élément de séparation, qui se trouve au-dessous d'une surface liquide libre de la couche superficielle, permet l'écoulement de liquide. Un conduit (4) d'évacuation dépasse de l'espace en vue de l'évacuation du liquide. Un élément flottant (15), relié à la paroi de séparation, flotte sur le liquide à l'extérieur du conteneur et exerce une force de levage sur l'élément de séparation, dans le prolongement de la paroi. Un élément submersible (16), relié à l'élément de séparation, se trouve au-dessous de la partie de trop-plein. Ledit élément submersible (16), qui possède une masse, exerce d'une part, une force dirigée vers le bas, de manière que la partie de trop-plein passe au-dessous de la surface liquide libre, et d'autre part, une force de levage due à la pression du liquide lorsque l'espace est rempli d'une telle quantité d'eau que l'élément submersible se trouve partiellement dans le liquide, la partie de trop-plein étant au-dessus de la surface liquide libre.
Alfa Laval Corporate Ab
Borden Ladner Gervais Llp
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