System and method for degassing molten metal
First Claim
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1. A system for releasing gas into molten metal, the system comprising:
- (a) a vessel for containing molten metal, the vessel comprising a bottom interior surface;
(b) a raised chamber in fluid communication with the vessel, the raised chamber comprising;
(i) a bottom interior surface positioned at least partially above the bottom interior surface of the vessel; and
(ii) a discharge for expelling molten metal from the raised chamber; and
(c) a plurality of degassers positioned in the raised chamber, the plurality of degassers releasing gas into the molten metal in the raised chamber;
(d) a dividing wall between each of the degassers, each dividing wall including an opening through which molten metal can pass; and
a pump positioned in the vessel for pumping the molten metal from the vessel to the raised chamber.
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Abstract
A system for adding gas to and transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, a device or structure, such as a molten metal pump, for generating a stream of molten metal, and one or more gas-release devices.
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Citations
18 Claims
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1. A system for releasing gas into molten metal, the system comprising:
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(a) a vessel for containing molten metal, the vessel comprising a bottom interior surface; (b) a raised chamber in fluid communication with the vessel, the raised chamber comprising; (i) a bottom interior surface positioned at least partially above the bottom interior surface of the vessel; and (ii) a discharge for expelling molten metal from the raised chamber; and (c) a plurality of degassers positioned in the raised chamber, the plurality of degassers releasing gas into the molten metal in the raised chamber; (d) a dividing wall between each of the degassers, each dividing wall including an opening through which molten metal can pass; and a pump positioned in the vessel for pumping the molten metal from the vessel to the raised chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification