Arc furnace for the production of metals
阅读：733发布：2023-05-12
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1. AN ARC FURNACE FOR THE MELTING OF REACTIVE METALS SUCH AS TITANIUM WHICH COMPRISES A GAS-TIGHT HOUSING, MEANS FOR CREATING A SUBSTANTIALLY INERT ATMOSPHERE WITHIN SAID HOUSING, MEANS FOR HOLDING A MASS OF REACTIVE METAL WITHIN SAID HOUSING, AN ELECTRODE ASSEMBLY EXTENDING IN PART INTO SAID HOUSING AND COMPRISING AN OUTER ELECTRODE TUBE ENCLOSED AT ITS LOWER END AN ELECTRODE TIP SUPPORTED BY THE ENCLOSED LOWER END OF SAID OUTER ELECTRODE TUBE, AN INNER TUBE POSITIONED WITHIN SAID OUTER ELECTRODE TUBE, SAID INNER TUBE BEING SMALLER THAN THE OUTER ELECTRODE TUBE AND DEFINING A COOLING FLUID PASSAGE WITH THE OUTER ELECTRODE TUBE, A COOLING FLUID EXPANSION CHAMBER IN OPEN COMMUNICATION WITH THE INNER TUBE AT ITS UPPER END, SAID INNER TUBE BEING IN OPEN COMMUNICATION WITH THE COOLING FLUID PASSAGE AT ITS LOWER END AND NEAR ITS UPPER END, A COOLING FLUID COMPRISING AT LEAST ONE ALKALI METAL SUBSTANTIALLY FILLING SAID INNER TUBE AND SAID COOLING FLUID PASSAGE, SAID COOLING FLUID AND SAID EXPANSION CHAMBER BEING SEALED FROM THE ATMOSPHERE, LIQUID METAL PUMP MEANS ADJACENT THE UPPER PORTION OF SAID OUTER ELECTRODE TUBE FOR CIRCULATING SAID COOLING FLUID PASSAGE, DOWN SAID INNER TUBE AND UP SAID COOLING FLUID PASSAGE, HEAT EXCHANGE MEANS BELOW SAID LIQUID METAL PUMP MEANS AND ABOUT SAID OUTER ELECTRODE TUBE FOR EXTRACTING HEAT FROM THE CIRCULATING COOLING FLUID, SAID LIQUID PUMP MEANS AND SAID HEAT-EXCHANGE MEANS BEING POSITIONED ABOUT PORTIONS OF THE OUTER ELECTRODE TUBE WHICH ARE AT ALL TIMES OUTSIDE THE ARC FURNACE.
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