Apparatus for distributing gas-laden refining powdered-particles

Details Apparatus for distributing gas-laden refining powdered-particles Apparatus for distributing gas-laden refining powdered-particles

1982-05-05

1983-09-27

Rutledge, L. Dewayne

Metallurgical apparatus

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

By means introducing treating material

266265, 75 51, C21C 532

Patent

active

044064438

ABSTRACT:
An apparatus for injecting a gas-laden refining agent into molten metal in a ladle comprises a multinozzle lance which has a plurality of introduction tubes in a lance body and a plurality of nozzles mounted in the lance body and connected to the introduction tubes, the nozzles opening substantially tangentially to an outer circumferential surface of the lance body. Each of the nozzles is molded of boron nitride and in the form of a conical taper which becomes progressively smaller in diameter toward the outer circumferential surface of the lance body. There is a system for independently distributing the gas-laden refining agent under pressure through a plurality of feed pipes which are connected to the introduction tubes, respectively, of the multinozzle lance.

REFERENCES:
patent: 3015481 (1962-01-01), Clingensmith
patent: 3150934 (1964-09-01), Hazard
patent: 3578064 (1971-05-01), Mills et al.
patent: 4192490 (1980-03-01), Nilsson et al.
patent: 4293123 (1981-10-01), Sauert

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