Scrap submergence system

• US 9,476,644 B2
• Filed: 07/09/2012
• Issued: 10/25/2016
• Est. Priority Date: 07/07/2011
• Status: Active Grant

• Current Assignee: Pyrotek Incorporated
• Original Assignee: Pyrotek Incorporated
• Inventors: Bolton, Mark, Howitt, Roger, Grayson, Jim, Bosworth, Paul
• Primary Examiner(s): ZHENG, LOIS L
• Application Number:
  US14/131,227
• Publication Number:
  US 20140232048A1
• Time in Patent Office: 1,569 Days
• Field of Search: 266/222, 266/233, 266/236
• US Class Current: 1/1
• CPC Class Codes: C22B 21/0092 Remelting scrap, skimmings or any secondary source aluminium
• CPC Class Codes: C22B 7/003 only remelting, e.g. of chips, borings, turnings; apparatus used therefor
• CPC Class Codes: F27B 3/045 Multiple chambers, e.g. one of which is used for charging
• CPC Class Codes: F27B 3/18 Arrangements of devices for charging
• CPC Class Codes: F27D 27/00 Stirring devices for molten material F27D3/14 takes precedence
• CPC Class Codes: Y02P 10/20 Recycling

Abstract

In accordance with one aspect of an exemplary embodiment, a furnace including a charge well is provided. The charge well comprises an open top chamber including side and base walls of a heat resistant material. An inlet is provided in a side wall of the chamber for receiving molten metal. A ramp is provided adjacent the side wall and an inner wall forms a central cavity. The ramp is disposed between the inner wall and the side wall. The ramp is generally inclined from an intersection with the base wall to adjacent a top surface of the inner wall. The cavity is in fluid communication with an outlet. A passage in the inner wall provides fluid communication between the inlet and the cavity. The inlet and an outlet each receives a conduit and at least one of the conduits can include an elbow joint.

Claims

1. A furnace including a charge well, said charge well comprising an open top chamber including side and base walls of a heat resistant material, an inlet in a side wall of the chamber for receiving molten metal, and an inclined ramp adjacent said side wall of the chamber, an inner wall forming a central cavity, said ramp disposed between said inner wall and said side wall, said cavity in fluid communication with an outlet, and a passage in said inner wall providing fluid communication between said inlet and said cavity.

2. The furnace of claim 1 further including a conduit providing fluid communication between said charge well and the furnace, the conduit including an elbow joint.

3. The furnace of claim 1 further including an adaptor mating a conduit to said furnace, said adapter including an inlet with an area greater than an outlet.

4. The furnace of claim 1 being capable of reversible operation with fluid flowing selectively from either the inlet to the cutlet within said charge well or from the cutlet to the inlet within said charge well.

5. A charge well comprising an open top chamber including side and base walls of a heat resistant material, an inlet in a side wall of the chamber for receiving molten metal, a ramp adjacent said side wall of the chamber, an inner wall forming a central cavity, said ramp disposed between said inner wall and said side wall, said ramp inclined from an intersection with the base wall to adjacent a top surface of said inner wall, said cavity in fluid communication with an outlet, a passage in said inner wall providing fluid communication between said inlet and said cavity, and a removable insert comprised of a heat resistant material shaped for removable securement within said passage, said removable insert blocking at least a portion of said passage.

6. The charge well of claim 5 wherein said insert includes a top surface forming an at least substantially contiguous rim with a top surface of said inner wall.

7. The charge well of claim 5 wherein said insert is disposed above said base wall.

8. The charge well of claim 5 wherein said inner wall includes one of a key and a keyway and said insert includes the other of the key and the keyway.

9. The charge well of claim 5 wherein said removable insert at least substantially fully blocking said passage.