Nozzle for injection lance

Details Nozzle for injection lance Nozzle for injection lance

1983-10-12

1986-12-23

Rutledge, L. Dewayne

Metallurgical apparatus

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

By means introducing treating material

266216, 266265, 266270, C21C 532

Patent

active

046308024

ABSTRACT:
A nozzle (4,5) for an injection lance, which is intended for injecting primarily powderous material into a metal bath, such as a steel bath, freely in a bath or in a casting nozzle, and which comprises preferably an outer, preferably ceramic pipe (1) and an inner, preferably metallic pipe (2), in which said material is intended, usually pneumatically, to be transported all the way to the tip (3) of the lance, at which tip the powderous material is intended to pass out through at least one nozzle (4,5) comprising a through passageway (6) for said material.
The nozzle according to the invention is especially characterized in that the nozzle (4,5) is made of a material with high wear resistance and with a fusion point, which is higher than the fusion point of the material, into which the injection is to be made, for example steel.

REFERENCES:
patent: 694348 (1902-03-01), Carson
patent: 2804339 (1957-08-01), Barbour et al.
patent: 2805147 (1957-09-01), Schreiber
patent: 3015481 (1962-01-01), Clingensmith
patent: 4326701 (1982-04-01), Hayden, Jr. et al.
patent: 4357004 (1982-11-01), Pelton
Newton, "Extractive Metallurgy", John Wiley and Sons, Inc., 1959, pp. 260-262.
PCT/SE80/00056, Publ. No. WO 80/01923, published 18 Sep. 80, Title: Refractory Lining for a Metal Pipe.

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