Rotary blade-type apparatus for dissolving alloy elements and dispersing gas in an aluminum bath
First Claim
1. A rotary blade-type apparatus for dissolving alloy elements and dispersing gas in an aluminium bath comprising a vertical shaft (1) which is pierced along its axis by a duct (2) intended for the passage of the gas, connected in its upper part to a source of gas and to a drive motor and comprising in its lower part which is immersed in the bath a disc (3) with the same axis as the shaft characterised in that the disc is provided on its side wall with blades (4) which extend along the generatrices of a right prism of parallelogrammatic section with its axis passing through the centre of the disc, the ends of which result from the intersection of said prism with a cylinder of the same axis as that bearing against the side wall of the disc, the large faces (5) of the prism forming an angle α
- of at most 45 degrees to the horizontal and the small faces (6) being disposed respectively in the planes of the upper and lower faces of the disc, said blades being provided with at least one orifice (7) connected to the duct (2) by a tubular passage (8).
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Accused Products
Abstract
The invention relates to an apparatus for dissolving alloy elements and dispersing gas in an aluminum bath comprising a vertical shaft (1) pierced along its axis by a duct (2) intended for passing the gas, connected in its upper part to a gas source and to a drive motor and comprising in its lower part which is immersed in the bath a disc (3) with the same axis as the shaft. It is characterized in that the disc is provided with blades (4) which extend along the generatrices of a right prism of parallelogrammatic section, have a rounded end, are inclined with respect to the horizontal at an angle of at most 45 degrees, have their faces between the two planes containing the upper and lower faces of the disc and are provided with axial orifices (7) connected to the duct (2) by a tubular passage (3). The apparatus permits the rapid production of alloys with a low proportion of alkaline elements therein, in particular in a transportation ladle.
142 Citations
9 Claims
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1. A rotary blade-type apparatus for dissolving alloy elements and dispersing gas in an aluminium bath comprising a vertical shaft (1) which is pierced along its axis by a duct (2) intended for the passage of the gas, connected in its upper part to a source of gas and to a drive motor and comprising in its lower part which is immersed in the bath a disc (3) with the same axis as the shaft characterised in that the disc is provided on its side wall with blades (4) which extend along the generatrices of a right prism of parallelogrammatic section with its axis passing through the centre of the disc, the ends of which result from the intersection of said prism with a cylinder of the same axis as that bearing against the side wall of the disc, the large faces (5) of the prism forming an angle α
- of at most 45 degrees to the horizontal and the small faces (6) being disposed respectively in the planes of the upper and lower faces of the disc, said blades being provided with at least one orifice (7) connected to the duct (2) by a tubular passage (8).
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification