Molten metal conveying means and method of conveying molten metal from one place to another in a metal-melting furnace
AssigneePremelt Pump, Inc.
InventorsLarry D. Areaux, Brian Klenoski
Life of this patent
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Abstract
A method, for the conveyance of molten metal from one place to another, in a high-temperature molten metal pool in a metal-melting furnace or out of said molten metal pool, employing an at least partially-inclined elongated conveying conduit and gas feed means for feeding inert gas into the lower end of the conveying conduit and thereby inducing a flow of molten metal in and through said conveying conduit, is disclosed, along with suitable apparatus for carrying out the said method wherein the parts or elements coming into contact with the high-temperature molten metal pool are of a suitable refractory material.
Claims56
A method for the conveyance of molten metal from one place to another in a molten metal pool or mass in a metal-melting furnace or out of said molten metal pool, comprising the steps of:
- providing an elongated conveying conduit having a lower end and an upper end, at least a portion of said conduit being inclined upwardly from the horizontal,
- providing a gas feed means having a gas inlet port and a gas exit port,
- positioning the exit port of said gas feed means with respect to the lower end of said conveying conduit so as to enable release of gas from said exit port into said conveying conduit at or adjacent its lower end,
- submerging the exit port of said gas feed means and the lower end of said conveying conduit in a molten metal mass or pool,
- introducing inert gas into said gas feed means through the gas inlet port thereof and causing said gas to emerge from the exit port thereof into said conveying conduit at or adjacent its lower end and to rise up the incline therein, and
- inducing concomitant flow of molten metal in said conveying conduit by means of said gas exiting from the exit port of said gas feed means and into said conveying conduit at or adjacent its lower end and rising up the incline therein.
Molten metal conveying means suitable for conveying molten metal from one place to another in a molten metal pool or mass in a metal-melting furnace or out of said molten metal pool, comprising in combination:
- inert gas feed means having a gas inlet port and a gas exit port, at least a portion thereof adapted to be submerged in a molten-metal bath comprising high-temperature and molten-metal resistant material,
- an elongated conveying conduit of high-temperature molten-metal resistant material having a lower end and an upper end, at least a portion of said conduit being inclined upwardly from the horizontal,
- the exit port of said inert gas feed means being associated with said conveying conduit at or near the lower end thereof so as to enable release of inert gas from said exit port of said gas feed means into said conveying conduit at or adjacent a lower end thereof, thereby to induce concomitant flow of molten metal in said conveying conduit.
Dependencies are inferred from the claim text.