Device for introducing gases into molten metal

Details Device for introducing gases into molten metal Device for introducing gases into molten metal

F - Mech Eng,Light,Heat,Weapons

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39/104, 53/361

F27D 3/16 (2006.01) B01D 19/00 (2006.01) B01F 5/04 (2006.01) B22D 1/00 (2006.01) C22B 9/05 (2006.01)

Patent

CA 1152320

A B S T R A C T Gases can be introduced in a finely divided form into molten metal using a jet-mixing facility which is designed on the Venturi principle and is made of a suitable refractory material. Melt flow rates of 2-100 m/s are measured in the cylindrical centre piece of this mixer, and gas is sucked in at a reduced pressure of 0.05 to 0.9 bar. By means of this process an injector efficiency (ratio of throughput of propellant to throughput of purifying medium) of 3.75-4.0 is achieved. - 1 -

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