Dual-cell mechanical flotation system

B - Operations – Transporting – 03 – D

Patent

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Details

B03D 1/16 (2006.01) B01D 17/02 (2006.01) B03B 13/00 (2006.01) B03D 1/14 (2006.01) C02F 1/24 (2006.01)

Patent

CA 2411097

It has been discovered that a mechanical flotation system having only two cells can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operating costs, as well as be resistant to floating oil recovery platform wave effects. The dual-cell mechanical flotation (10) system has, in sequential order, an inlet chamber (16) and two gasification chambers or cells (18, 20), each with at least one gas ingestion and mixing mechanism (32), and a discharge chamber (24). A common primary skim collection channel (40) atop the partition (44) dividing the gasification chambers (18, 20) efficiently channels away the bulk of the floating collected matter. At least one baffle (60) depending from the top of the vessel (12) near the primary skim collection channel (40) helps dampen the action of the fluid containing the suspended matter when the vessel (12) is affected by wave motion against the floating oil production platform.

L'invention concerne un système de flottation mécanique pourvu d'au moins deux cellules qui peut s'avérer aussi efficace qu'un système en possédant plusieurs. Cette invention concerne aussi un appareil à encombrement considérablement réduit, ce qui permet de réduire grandement les coûts d'exploitation et de capitaux, ainsi que des effets de vagues de plate-forme de récupération d'huile flottante. Ledit système de flottation mécanique à cellule duale comprend, dans un ordre séquentiel, une chambre d'entrée et deux chambres ou cellules de gazéification, chacune comportant au moins un mécanisme de mélange et d'ingestion gazeux, et une chambre de décharge. Un premier canal commun de collecte d'écume se trouve au-dessus de la partition divisant les canaux des chambres de gazéification de la masse de matière flottante recueillie. Au moins un déflecteur dépendant de la partie supérieure de la cuve à proximité du canal de collecte d'écume aide à atténuer l'action du fluide renfermant la matière suspendue, lorsque la cuve est touchée par le mouvement de vague produit contre la plate-forme de production d'huile flottante.

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