Loading patent…
AssigneesTetronics Research and Development Co. Ltd., Manville Corporation
InventorsJohn K. Williams, Charles P. Heanley, Leonard E. Olds
Estimating the term…
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.
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 of opposite polarities and with means to rotate at least the portion of the furnace containing the material to be melted, melting the said feedstock material to form a molten pool using the at least two transferred arc plasm electrodes whilst rotating at least the rotatable portion of the furnace containing the material to be melted and continuously discharging the material from the molten pool in a continuous stream.
Apparatus for melting materials under power densities of greater than 25 KW/ft.sup.2 which apparatus consists essentially of a furnace, the furnace having a fixed upper shell and a rotatable lower shell serving as a basin for holding a molten pool of the said material, the fixed upper shell having at least two transferred arc plasma electrodes of opposite polarities mounted in the roof thereof, means to rotate the rotatable lower shell, an inlet for the introduction of a feedstock material to the furnace and an outlet for the withdrawal of the molten material from the molten pool of the said material in a continuous stream.
Dependencies are inferred from the claim text.