Staged valve multi-hole injection block and method

Details Staged valve multi-hole injection block and method Staged valve multi-hole injection block and method

1990-04-27

1991-09-24

Kastler, S.

Metallurgical apparatus

Process

266220, 266268, C21C 548

Patent

active

050508474

ABSTRACT:
An injection block of an injection valve intended for bottom injection but optionally operable on the side of a teeming vessel for side injection is disclosed. The invention is directed specifically to a multi-passageway multi-orifice injection block in which the injection passages may be parallel, radially disposed around a frustoconical locus, or angled in a tangential fashion within the injection block. The thrust of the invention, however, is to stage the permeable elements in progressively more buried relationship to the hot face of the injection block sequenced in the order in which the particular passageways which are plugged by the porous plug are programmed for use. In this manner, progressive erosion of the wet or hot face of the injection block will progressively expose the upper portion of the permeable plug in accordance with the timed usage intended for the same.

REFERENCES:
patent: 4771992 (1988-09-01), King
patent: 4802655 (1989-02-01), Bates
patent: 4815715 (1989-03-01), Ganson et al.
patent: 4919397 (1990-04-01), King

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