Rotary gas dispersion device for the treatment of a bath of liquid metal
AssigneeSociete de Vente de l'Aluminium Pechiney
InventorsJacques Gimond, Richard Gonda, Jean-Marie Hicter, Pierre Laty
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Abstract
The invention relates to a rotary gas dispersion device for the treatment of a bath of liquid metal such as aluminum and its alloys, comprising a cylindrical rotor equipped with blades immersed in the bath, connected to a hollow control shaft for the supply of gas, and is characterized in that the rotor is pierced by oblique ducts coupled to radial ducts in which the metal and the gas circulate respectively before being mixed at the point where these ducts join up, emerging in the bath so as to form a fine dispersion which is then distributed in the said bath by means of blades.
Claims7
A rotary gas dispensing device for treatment of a bath of liquid metal which is contained in a vessel, said device comprising a hollow shaft, means for communicating the hollow shaft with a source of gas, a rotor of cylindrical shape mounted on the hollow shaft, a plurality of blades mounted on the periphery of the rotor and extending outwardly therefrom, a plurality of pairs of ducts defined by the rotor, each said pair comprising one duct communicating with the hollow shaft and extending outwardly therefrom to said periphery, the other duct of each pair communicating with said bath at a location inwardly of said periphery and extending to and intersecting said one duct of that pair.
Dependencies are inferred from the claim text.