Vortex melting system

Details Vortex melting system Vortex melting system

1980-03-31

1981-09-01

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 68R, 266901, C22B 2100

Patent

active

042869854

ABSTRACT:
An improved method and apparatus for ingesting and melting metal scrap that otherwise tends to float on the surface of a molten melting media. The method includes the steps of providing a supply of the melting media and directing the media from the supply to an upper portion of a receptacle having an outlet opening in the lower portion thereof. The flow of the melting media entering the receptacle produces a free vortex of the media in the receptacle, as the media flows out the lower opening. The amount of the flow of the melting media to the receptacle and the size of the lower opening are such that a predetermined level of the media is maintained in the receptacle. The symmetry and continuity of the flow pattern of the vortex are disturbed in such a manner that floating metal solids (and any associated skim material) entering the vortex from the upper portion of the receptacle are rapidly ingested into the melting media. Such ingestion is much more effective than the limited ingestion capability of an undisturbed vortex.

REFERENCES:
patent: 3272619 (1966-09-01), Sweeney et al.
patent: 3997336 (1976-12-01), Van Linden et al.
patent: 4008884 (1977-02-01), Fitzpatrick et al.

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