| abstract |
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. |