Porous nozzle for molten metal vessel

Details Porous nozzle for molten metal vessel Porous nozzle for molten metal vessel

1981-03-16

1982-11-23

Rosenberg, P. D.

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By means introducing treating material

266236, 266265, C21C 548

Patent

active

043601901

ABSTRACT:
A refractory porous nozzle which is arranged at the bottom of a molten metal vessel, characterized in that said porous nozzle is made in one body having a flange portion at its upper portion and a cylindrical portion at its lower portion, the outer peripheral surface of the main body of said porous nozzle is gas-tightly enclosed with a steel shell, a gas pool is provided between the bottom surface of said flange portion and the outer peripheral surface of said cylindrical portion, and the inner peripheral surface of said steel shell, and the gas pool is communicated with an inert gas feeding pipe.

REFERENCES:
patent: 3330645 (1967-07-01), De Moustier
patent: 3891429 (1975-06-01), Cox
patent: 3918613 (1975-11-01), Shapland
patent: 3971548 (1976-07-01), Folgero

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