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OwnerVladimir Semenovich Cherednichenko, Valentin Innokentievich Belsky +3inventors
InventorsVladimir Semenovich Cherednichenko, Valentin Innokentievich Belsky, Gennady Ivanovich Orlov, Jury Anatolievich Naryshkin, Jury Petrovich Novikov
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Apparatus for the continuous vacuum refining of a metal comprising a cylindrical vacuum chamber, containing a stack of a plurality of vertically superposed trays. The trays receive impure molten metal which flows downwardly from tray to tray while impurities are discharged therefrom and flow to shields which surround the trays and condense and discharge the impurities. The metal in the trays is heated to evaporate the impurities therefrom. The heat energy which is imparted to the metal is effected irregularly along the height of the stack of the trays such that the imparted heat energy diminishes in a vertically downwards direction.
Apparatus for continuous vacuum refining of a metal comprising a cylindrical vacuum chamber, a stack of a plurality of vertically superposed trays disposed in said vacuum chamber for receiving impure molten metal and including interconnection means for flowing the metal downwardly from tray to tray while impurities are discharged therefrom, heater means in said vacuum chamber for heating of the metal in the trays and for evaporating the impurities therefrom, shield means in said chamber surrounding said trays for trapping volatilized impurities discharged from the trays and for condensing and discharging the impurities, and means for effecting irregular distribution of heat energy generated by the heater means along the height of the stack of trays such that the heat energy imparted to the trays diminishes in a vertically downwards direction.
Apparatus as claimed in claim 4 wherein said interconnection means comprises an upstanding overflow pipe mounted in each tray for conveying molten metal to the next lower tray, said means for effecting irregular distribution of the heat energy being obtained by the provision wherein the height of the overflow pipes increases for successively lower trays, said heater means comprising an electrical current conductor operatively associated only with the uppermost tray, the trays being insulated from one another.
Dependencies are inferred from the claim text.