Apparatus for the production of steel and iron alloys

Details Apparatus for the production of steel and iron alloys Apparatus for the production of steel and iron alloys

1979-11-28

1981-12-01

Rosenberg, P. D.

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

Having means preventing damage to introducing means, e.g.,...

75 60, C21B 716

Patent

active

043032303

ABSTRACT:
This invention relates to a water-cooled lance suitable for top-blowing molten metal with oxygen entraining hydrogen extraneously to the lance characterized in that the oxygen nozzle (1) thereof includes an annular passage (8) which converges and then diverges inwardly towards the longitudinal axis of the lance and the hydrogen nozzle (9) is an inner nozzle which includes a right circular cylindrical axial passage through a member (7) centrally located in the oxygen nozzle.

REFERENCES:
patent: 3241825 (1966-03-01), Jilek
patent: 3558119 (1971-01-01), Demalander
patent: 3746534 (1973-07-01), Szekely
patent: 3793002 (1974-01-01), Borgnat
patent: 3901445 (1975-08-01), Chang
patent: 3917243 (1975-11-01), Borgnat

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