Discharge nozzle assembly and methods of formation and operation

Details Discharge nozzle assembly and methods of formation and operation Discharge nozzle assembly and methods of formation and operation

1986-03-13

1987-11-24

Rutledge, L. Dewayne

Metallurgical apparatus

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

By means introducing treating material

266236, 222603, C21C 548

Patent

active

047083271

ABSTRACT:
A discharge nozzle assembly for discharging molten metal from a metallurgical vessel includes a refractory nozzle brick having therethrough a discharge passage. An annular member formed of a refractory gas-permeable material is embedded in the nozzle brick and has an inner surface defining a discharge passage aligned with the discharge passage of the nozzle brick. A processing gas is supplied to the annular, gas-permeable member which supplies such gas to the discharge passage. The annular member is encased in metal, except for the inner surface thereof, to prevent leakage of the gas.

REFERENCES:
patent: 3773226 (1973-11-01), Kutzer
patent: 3838798 (1974-10-01), Voss
patent: 4091971 (1978-05-01), Tinnes et al.
patent: 4360190 (1982-11-01), Ato
patent: 4583721 (1986-04-01), Arakawa et al.

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