Gas-dynamic stirring of liquid molten metals

Details Gas-dynamic stirring of liquid molten metals Gas-dynamic stirring of liquid molten metals

C - Chemistry, Metallurgy

21

B

39/108

C21B 7/00 (2006.01) F27D 27/00 (2010.01) C21C 7/00 (2006.01) C22B 9/00 (2006.01) C22B 9/02 (2006.01) C22B 21/00 (2006.01)

Patent

CA 1106600

ABSTRACT OF THE DISCLOSURE An apparatus for gas-dynamic stirring of molten liquid metals including a pump and molten metal bath, com- prising: a tube with a removable cover; a system for supply- ing compressed-gas pulses, including an outlet nozzle, a pres- surized-gas accumulator and a gas-distributing device, a suc- tion system for withdrawing a metal portion into the tube of the pump, including a suction cut-off device; a sensor of the metal level in the molten metal bath, the outlet nozzle being directed upwardly toward the cover of the tube of the pump and encompassed in a movable annular sleeve with a shoulder, the cover having mounted therein rod-type valves adapted to cooperate with the shoulder of the movable sleeve, to communi- cate the internal space of the tube with the ambient atmosphere upon the valves being raised by the action of the movable sleeve operatively connected with a float submerged in the molten metal. Also disclosed is a method based on the use of the apparatus.

307895

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