Jet column and jet column reactor dross removing dross diluting pumps
AssigneeAlphatech, Inc.
InventorJorge A. Morando
Life of this patent
Estimating the term…
Abstract
A gas jet-operated pump for removing dross from the surface of a bath of molten metal. The pump can be employed for delivering molten metal to the dross for diluting it or for removing it from a selected area.
Claims24
In a metal treating apparatus having a container for holding a bath of molten metal, a gas-filled housing for enclosing a moving strip of metal, the housing having an opening in said bath of molten metal below the level thereof, through which the strip of metal exits the housing while submerged in the molten metal, and an apparatus for removing a layer of dross from the surface of the metal bath inside the gas-filled housing, comprising:
- a conduit having an inlet opening adjacent the surface of the molten metal for receiving dross into the conduit;
- the conduit having an outlet opening for discharging dross received through said inlet opening;
- the conduit having a gas-receiving opening below the outlet opening, such that a gas rises in said conduit to induce a flow of dross into said inlet opening and towards said outlet opening;
- and
- the gas-receiving opening being disposed to discharge the gas into the conduit in the same direction s the dross flows in the conduit.
A metal treating process in which a moving strip of metal passes through a bath of molten metal in a gas-filled housing which encloses the moving strip of metal, the housing having an opening in said bath of molten metal below the level thereof, through which the strip of metal exits the housing while submerged in the molten metal, a method for moving a material selected from molten metal, dross or mixtures thereof inside the gas-filled housing, comprising:
- positioning a conduit having an inlet opening adjacent either the surface of the molten metal for receiving dross into the conduit, or below the surface for receiving molten metal and an outlet opening for discharging the received dross or molten metal;
- and
- introducing a gas into the conduit in the same direction as the motion of the metal or dross, whereby the gas rises in the conduit to induce a flow of dross into the inlet opening and towards the outlet opening.
An apparatus for removing a layer of dross from the surface of a metal bath comprising a generally U-shaped conduit including a first leg having an inlet opening, and a second leg having an outlet opening for discharging dross receiving through said inlet opening, the second leg having a longitudinal axis wherein a gas-receiving opening and the outlet opening lie generally on said longitudinal axis.
In a metal treating apparatus having a container for holding a bath of molten metal, a gas-filled housing for enclosing a moving trip of metal, the housing having an opening in said bath of molten metal below the level thereof, through which the strip of metal enters the housing while submerged in the molten metal, and an apparatus for diluting a layer of dross at the surface of the metal bath inside the gas-filled housing, comprising:
- a conduit having an inlet opening below the surface of the molten metal;
- the conduit having an outlet opening adjacent the layer of dross;
- the conduit having a gas-receiving opening below the outlet opening such that gas rises in said conduit to induce a flow of metal into said inlet opening and towards said outlet opening;
- and
- the gas-receiving opening being disposed to discharge the gas into the conduit in the same direction as metal flows in the conduit.
An apparatus for diluting a layer of dross at the surface of a metal bath comprising a generally U-shaped conduit having a first leg having an inlet opening, and a second leg having an outlet opening for discharging metal received through said inlet opening, the conduit having a gas-receiving opening below the outlet opening,
- a pump body mated with the conduit adjacent the gas-receiving opening,
- an elongated gas delivery member having a lower end threadably connected to a threaded section of the pump body and an upper end, extending above the second leg and adapted for receiving a gas, and
- a sleeve encasing the gas delivery member, the sleeve having an upper end above the second leg, said pump body and said gas delivery member including a gas passage for delivering gas into said conduit.
An apparatus for displacing molten metal in a metal bath comprising a generally U-shaped conduit comprised of ceramic, graphite, stainless steel, temperature resistant alloy, or mixtures thereof, said U-shaped conduit including a first leg having an inlet opening, and a second leg having an outlet opening, the second leg having a longitudinal axis wherein a gas receiving opening and the outlet opening lie generally on said longitudinal axis.
Dependencies are inferred from the claim text.