Metallurgical apparatus – Means for introducing fluent into vessel – e.g. – tuyere – Having means for simultaneously feeding diverse materials
Patent
1976-11-30
1977-08-09
Dost, Gerald A.
Metallurgical apparatus
Means for introducing fluent into vessel, e.g., tuyere
Having means for simultaneously feeding diverse materials
266222, C21C 548
Patent
active
040406121
ABSTRACT:
A blast pipe assembly for mounting on attachment to and dismounting from the bottom plate means of a converter or furnace for refining metals, the plate means including a hollow cylindrical part for surrounding the blast pipe and having at its lower end portion an inner shoulder and a flange for clamping bolts, the blast pipe assembly comprises two concentric pipes for double separate feed, the inner pipe of said concentric pipes being longer than the outer pipe of said concentric pipes and the inner diameter of said outer pipe being greater than the outer diameter of said inner pipe to define a gap between said pipes for admission of fluid, the lower end of said outer pipe, which is arranged to be at the level of said shoulder of said hollow cylindrical part, being flared, said inner pipe having, at a level below the lower end of said outer pipe, a circular swelling;
A hollow cylindrical injector body adapted to be arranged between said flared portion of said outer pipe and said circular swelling on said inner pipe, said injector body having a lateral inlet for fluid for feeding said gap between said pipes with fluid, at the lower end thereof an inwardly directed machined circular face for bearing in a fluid tight manner against the upper part of said circular swelling on said inner pipe.
REFERENCES:
patent: 3608880 (1971-09-01), Gombert et al.
Leroy Pierre
Sprunck Emile
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