Thermally stable injector lance

Details Thermally stable injector lance Thermally stable injector lance

1976-02-17

1978-04-18

Dost, Gerald A.

Metallurgical apparatus

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

By means introducing treating material

C21C 700

Patent

active

040848000

ABSTRACT:
A thermally stable lance for injecting particulate material into molten metal is provided which comprises an elongated thermal insulating member having spaced apart first and second ends and at least one wall therebetween defining the member; a reinforcing rod axially disposed in the insulating member with one end of the rod extending beyond the first end of the insulating member, the rod having a plurality of outwardly extending protrusions in contact with the said insulating member; a length of wire wound around the reinforcing rod which is in contact with the insulating member; and a hollow injection tube having spaced apart first and second ends axially disposed in the insulating member with the first end thereof extending beyond the first end of the insulating member and the second end extending beyond the second end of the insulating member.

REFERENCES:
patent: 51401 (1865-12-01), Bessemer
patent: 2214612 (1940-09-01), Greenberg
patent: 2906521 (1959-09-01), Harders
patent: 2985441 (1961-05-01), Gibson
patent: 3781001 (1973-12-01), Andrews et al.
patent: 3833209 (1974-09-01), Chang
patent: 3898078 (1975-08-01), Huber
patent: 3976286 (1976-08-01), Thompson et al.

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