Apparatus for refining molten metal and molten metal refining pr

Details Apparatus for refining molten metal and molten metal refining pr Apparatus for refining molten metal and molten metal refining pr

1974-03-11

1976-01-27

Dost, Gerald A.

Metallurgical apparatus

With control means responsive to sensed condition

With means responsive to condition of treated material

13 29, C21C 546

Patent

active

039348636

ABSTRACT:
Apparatus suitable for injecting fluids, particularly suspensions of solids in gases, below the surface of a molten metal, e.g. in emulsion metallurgy, comprises a converter having a tuyere for injecting the fluid below the surface of the molten metal, and a heating zone, spaced away from the converter but in liquid communication with the converter at a level below the surface of the molten metal, the heating zone having a thinner lining than the converter and being heated by electric induction heating so that a temperature gradient can be set up between the heating zone and the converter to maintain the temperature of the molten metal in the converter. The converter is dimensioned such that it can be tilted to a position where it can still contain the whole volume of molten metal to be treated but the openings of the channel and of the tuyere are exposed above the surface of the molten metal in the tilted position. The apparatus can be used for desulphurisation or decarburization of steel, the reduction of reducible metal oxides by emulsion reduction, the introduction of alloying components or the introduction of endothermally reacting gases into molten metals.

REFERENCES:
patent: 1031257 (1912-07-01), Greene
patent: 1769223 (1930-07-01), Isliker
patent: 1958581 (1934-05-01), Kennicott

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