MOLTEN METAL SCRAP SUBMERGENCE APPARATUS

• US 20150069679A1
• Filed: 04/16/2013
• Published: 03/12/2015
• Est. Priority Date: 04/16/2012
• Status: Active Grant

• Current Assignee: Pyrotek Incorporated
• Original Assignee: Pyrotek Incorporated
• Inventors: Henderson, Richard S., Vild, Chris T., Tetkoskie, Jason
• Granted Patent: US 9,920,992 B2
• Time in Patent Office: Days
• US Class Current: 266/236
• CPC Class Codes: C22B 21/0092 Remelting scrap, skimmings or any secondary source aluminium
• CPC Class Codes: C22B 9/16 Remelting metals liquating C22B9/02
• CPC Class Codes: F27B 3/16 Walls; Roofs
• CPC Class Codes: F27B 3/18 Arrangements of devices for charging
• CPC Class Codes: F27B 3/19 Arrangements of devices for discharging
• CPC Class Codes: F27D 27/00 Stirring devices for molten material F27D3/14 takes precedence
• CPC Class Codes: Y02P 10/20 Recycling

Abstract

A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in a side wall of the chamber, an outlet positioned in the base of said chamber, and a ramp adjacent said side wall of the chamber. The side wall further includes a feature affecting molten metal flow. The feature can include, for example, a baffle, a vane, a passage, a diverging or converging shape and combinations thereof. Similarly, the molten metal flow can be affected by slanting the ramp inwardly or outwardly.

Claims

1. A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in a base or side wall of the chamber, an outlet positioned in the base or side wall of said chamber, and a ramp adjacent said side wall of the chamber, the side wall further including a feature influencing molten metal flow.

2. The device of claim 1 wherein the feature comprises a baffle, a vane, a passage, a diverging or converging shape, and combinations thereof.

3. The device of claim 1 wherein said feature comprises at least one baffle extending toward a center of said chamber from said side wall.

4. The device of claim 3 wherein said baffle is spaced above said base.

5. The device of claim 3 wherein said baffle extends continuously around the side wall.

6. The device of claim 3 comprising a plurality of baffles spaced apart on said side wall.

7. The device of claim 6 wherein at least two of said baffles are located at different heights within said chamber.

8. The device of claim 3 wherein said baffle comprises an inclined surface facing the base of said chamber.

9. The device of claim 1 wherein said feature comprises a passage disposed in said side wall providing fluid communication between said chamber and an adjacent vessel.

10. The device of claim 9 wherein said passage has a diameter less than a diameter of said outlet.

11. The device of claim 9 wherein said passage is located above said ramp.

12. The device of claim 1 wherein said ramp comprises a sloped surface extending from said base to said side wall.

13. The device of claim 1 wherein said ramp comprises a ledge extending from the side wall having a first end engaging the base and a second end terminating above the base.

14. The device of claim 13 wherein said ledge extends from between greater than 0 and 270°

of the chamber circumference.

15. The device of claim 14 wherein said ramp has an inclined slope of between about 5 and 15°

between said first and said second end.

16. The device of claim 13 wherein at least generally upward facing surface of the ledge extending from said side wall is one of inwardly or outwardly inclined.

17. The device of claim 1 wherein said feature comprises at least a portion of the side wall being one of inwardly or outwardly inclined adjacent said ramp.

18. The device of claim 1 comprising a side wall inlet and a base outlet.

19. A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in a side wall of the chamber, an outlet positioned in the base of said chamber, a ramp comprising a ledge extends from said side wall, said ledge includes an at least generally upward facing surface, said surface being either inwardly or outwardly slanted.

20. The device of claim 19 wherein said ledge includes a first edge engaging said side wall and a second edge engaging an inner wall defining said outlet.

21. A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in one of a side wall or a base of the chamber, an outlet positioned in the base of said chamber, a ramp comprising a ledge extends from said side wall, said ledge includes an at least generally upward facing surface, said surface being either inwardly or outwardly slanted, said chamber side wall further including at least one of a baffle, a vane, a passage in fluid communication with a dross well, a change in diameter adjacent said ramp, and a combinations thereof.

22. A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in a base or side wall of the chamber, an outlet positioned in the base or side wall of said chamber, and a ramp adjacent said side wall of the chamber, the side wall further including a means for disrupting molten metal flow adjacent the side wall of the chamber.