Low shear gas mixer

Details Low shear gas mixer Low shear gas mixer

B - Operations, Transporting

01

F

B01F 3/02 (2006.01) B01F 5/04 (2006.01) B01J 12/00 (2006.01) B01J 19/26 (2006.01)

Patent

CA 2701306

A gas mixer (10) for mixing a first gas stream with a second gas stream includes an impact labyrinth (24) in the first gas stream having structures (25), e.g., corrugated walls, forming a tortuous path through which the first gas stream must pass en route to a mixing point (20) in the gas mixer. The labyrinth fosters ignition of particles entrained in the first gas stream. Elongate, straight pipes (30) receive the first gas stream from the impact labyrinth (24) and carrying the first gas stream to the mixing point (20) the pipes (30) are positioned with a vessel (12) carrying the second gas stream. The pipes (30) have openings which are sbustantially aligned with the flow direction of the second gas stream at the mixing point (20) thereby introducing the first gas stream into the second gas stream in a low shear manner.

La présente invention concerne un mélangeur de gaz permettant de mélanger un premier flux gazeux avec un second flux gazeux. Ledit mélangeur comprend un labyrinthe à impact au niveau du premier flux gazeux comportant des structures, par exemple des parois striées, formant un parcours tortueux que doit suivre le premier flux gazeux pour rejoindre une zone de mélange du mélangeur de gaz. Le labyrinthe favorise l'ignition des particules entraînées dans le premier flux gazeux. Des tuyaux allongés et rectilignes reçoivent le premier flux gazeux à la sortie du labyrinthe à impact et l'amènent jusqu'à la zone de mélange. Les tuyaux se trouvent à l'intérieur d'une cuve contenant le second flux gazeux. Les tuyaux comportent des ouvertures qui sont essentiellement alignées avec la direction d'écoulement du second flux gazeux au niveau de la zone de mélange, ce qui permet l'introduction du premier flux gazeux dans le second flux gazeux avec un faible cisaillement.

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