Method of melting materials and apparatus therefor
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United States of America Patent
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Jul 2, 1991
Issued Date -
N/A
app pub date -
Jan 3, 1991
filing date -
Nov 17, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of melting materials at power densities in excess of 25 KW/ft.sup.2 of area within the metal shell of a melting vessel which method consists essentially of continuously feeding the material to be melted to a plasma arc furnace which is equipped with at least two transferred arc plasma electrodes and with means to rotate at least the portion of the furnace containing the material to be melted, melting the said feedstock material using the at least two transferred arc plasma electrodes whilst rotating at least the rotatable portion of the furnace containing the material to be melted and continuously discharging the material which has been melted from the furnace. Apparatus for melting materials under power densities of greater than 25 KW/ft.sup.2 is also disclosed.
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