C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/20 (2006.01) B01F 3/04 (2006.01) B01F 7/16 (2006.01)
Patent
CA 2360385
The invention relates to an apparatus for the treatment of contaminated media, comprising a rotatable housing having at least one inlet (28) for gas emerging in the stirrer housing, and at least one suction opening (10; 32) for the medium to be treated. The housing is provided with a plurality of outlet openings (25; 27) arranged along its periphery. A plurality of vanes (22; 23) are arranged in the outlet openings (25; 27). A rotation transferring means (24) is provided to transfer a rotational movement to the stirrer. A method according to the invention comprises generating a vortex in the medium in such a way that an under-pressure occurs in the centre of the vortex, and that a nitrogen containing gas is introduced in the centre of the vortex.
L'invention a trait à un appareil servant à traiter des milieux contaminés, qui comporte un logement rotatif présentant au moins un orifice d'entrée (28) pour des gaz émanant du logement d'agitateur, et au moins un orifice d'aspiration (10; 32) du milieu à traiter. Le logement comporte plusieurs orifices de sortie (25; 27) ménagés sur son pourtour. Plusieurs ailettes (22; 23) sont placées dans les orifices de sortie (25; 27). Un moyen de transfert de rotation (24) permet de transférer un mouvement de rotation à l'agitateur. Un procédé de l'invention comporte les étapes consistant à produire un tourbillon dans le milieu de façon à obtenir une pression réduite au centre du tourbillon, et à introduire un gaz azoté au centre du tourbillon.
Gefle Virvelteknik Ab
Robic
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