The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from
The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder.
대표청구항▼
1. A vessel for use in a system for transferring molten metal, the vessel including outer walls, and: a cavity defined by the outer walls, the cavity for retaining molten metal;an opening inside of the cavity;a transfer chamber formed in the cavity above the opening, the transfer chamber comprising:
1. A vessel for use in a system for transferring molten metal, the vessel including outer walls, and: a cavity defined by the outer walls, the cavity for retaining molten metal;an opening inside of the cavity;a transfer chamber formed in the cavity above the opening, the transfer chamber comprising: (a) a plurality of chamber walls, wherein at least one of the chamber walls is part of one of the outer walls of the vessel; (b) an uptake section above, and in fluid communication with the opening, wherein the uptake section is configured to receive a rotor and rotor shaft, and configured to move molten metal upward and therethrough, and (c) an outlet above the opening, the outlet in fluid communication with the uptake section, wherein the outlet is configured so that molten metal reaching the outlet exits the uptake section through the outlet; andan entrance to the uptake section and a tap-out opening positioned lower than the entrance. 2. The vessel of claim 1 that also includes an inner bottom surface that slopes downward towards the opening. 3. The vessel of claim 1 wherein the outlet is at least two feet above the opening. 4. The vessel of claim 2 wherein the outlet is at least two feet above the inner bottom surface. 5. The vessel of claim 1 that is comprised of refractory material. 6. The vessel of claim 1 wherein the opening has a cross-sectional area and the transfer section has a second cross-sectional area, the second cross-sectional area being larger than the cross-sectional area. 7. The vessel of claim 1 wherein the transfer chamber is cylindrical. 8. The vessel of claim 1 wherein the transfer chamber has a first vertical section with a first cross-sectional area and a second vertical section having a second cross-sectional area, the second cross-sectional area adjacent the opening, and the second cross-sectional area being smaller than the first cross-sectional area. 9. The vessel of claim 1 wherein the opening has a cross-sectional area and the transfer section has a second cross-sectional area, the second cross-sectional area being smaller than the cross-sectional area. 10. The vessel of claim 8 wherein the transfer section further includes a third vertical section having a third cross-sectional area, the third section being between the first vertical section and the second vertical section, and the third cross-sectional area being smaller than the first cross-sectional area, but larger than the second cross-sectional area. 11. The vessel of claim 1 that has a first side wall and a second side wall opposite the first side wall, and that comprises one or more brackets for positioning a pump in the transfer chamber, and the one or more brackets comprises two metal beams that extend from the first side wall to the second side wall, and each of the metal beams is connected to the first side wall and the second side wall. 12. The vessel of claim 1 that further includes one or more brackets for positioning a pump in the transfer chamber. 13. The vessel of claim 12 wherein each beam is flat. 14. The vessel of claim 12 wherein each beam is L-shaped. 15. The vessel of claim 1 that further includes a wall dividing the vessel into a first section and a second section, wherein the second section includes the transfer chamber. 16. The vessel of claim 1 that further includes a launder in communication with the outlet so that molten metal exiting the outlet passes into the launder. 17. The vessel of claim 1 wherein the entrance is 3″ or more above the inner bottom surface. 18. The vessel of claim 1 wherein the transfer chamber has three walls inside the vessel cavity and has a fourth wall that is an outer wall of the vessel. 19. The vessel of claim 12 wherein the one or more brackets and transfer chamber are configured so that when the pumping device is positioned in the transfer section the rotor and rotor shaft are each partially or entirely within the uptake section. 20. A vessel for use in a system for transferring molten metal, the vessel including outer walls, and: a cavity defined by the outer walls, the cavity for retaining molten metal;an opening inside of the cavity;a transfer chamber formed in the cavity above the opening, the transfer chamber comprising: (a) a plurality of chamber walls, wherein at least one of the chamber walls is part of one of the outer walls of the vessel; (b) an uptake section above, and in fluid communication with the opening, wherein the uptake section is configured to receive a rotor and rotor shaft, and configured to move molten metal upward and therethrough, and (c) an outlet above the opening, the outlet in fluid communication with the uptake section, wherein the outlet is configured so that molten metal reaching the outlet exits the uptake section through the outlet anda launder in communication with the outlet so that molten metal exiting the outlet passes into the launder. 21. The vessel of claim 20 that also includes an inner bottom surface that slopes downward towards the opening. 22. The vessel of claim 20 that further includes an entrance to the uptake section. 23. The vessel of claim 20 wherein the outlet is at least two feet above the opening. 24. The vessel of claim 20 wherein the outlet is at least two feet above the inner bottom surface. 25. The vessel of claim 20 that is comprised of refractory material. 26. The vessel of claim 20 wherein the opening has a cross-sectional area and the transfer section has a second cross-sectional area, the second cross-sectional area being larger than the cross-sectional area. 27. The vessel of claim 20 wherein the transfer chamber is cylindrical. 28. The vessel of claim 20 wherein the transfer chamber has a first vertical section with a first cross-sectional area and a second vertical section having a second cross-sectional area, the second cross-sectional area adjacent the opening, and the second cross-sectional area being smaller than the first cross-sectional area. 29. The vessel of claim 20 wherein the opening has a cross-sectional area and the transfer section has a second cross-sectional area, the second cross-sectional area being smaller than the cross-sectional area. 30. The vessel of claim 29 wherein the transfer section further includes a third vertical section having a third cross-sectional area, the third section being between the first vertical section and the second vertical section, and the third cross-sectional area being smaller than the first cross-sectional area, but larger than the second cross-sectional area. 31. The vessel of claim 20 that has a first side wall and a second side wall opposite the first side wall, and that comprises one or more brackets for positioning a pump in the transfer chamber, and the one or more brackets comprises two metal beams that extend from the first side wall to the second side wall, and each of the metal beams is connected to the first side wall and the second side wall. 32. The vessel of claim 31 wherein each beam is flat. 33. The vessel of claim 31 wherein each beam is L-shaped. 34. The vessel of claim 20 that further includes a wall dividing the vessel into a first section and a second section, wherein the second section includes the transfer chamber. 35. The vessel of claim 20 wherein the transfer chamber has three walls inside the vessel cavity and has a fourth wall that is an outer wall of the vessel. 36. The vessel of claim 20 that further includes one or more brackets for positioning a pump in the transfer chamber. 37. The vessel of claim 31 wherein the one or more brackets and transfer chamber are configured so that when the pumping device is positioned in the transfer section the rotor and rotor shaft are each partially or entirely within the uptake section. 38. A vessel for use in a system for transferring molten metal, the vessel comprising outer walls, and: a cavity defined by the outer walls, the cavity for retaining molten metal;an opening inside of the cavity;a transfer chamber formed in the cavity above the opening, the transfer chamber comprising: (a) a plurality of chamber walls, wherein at least one of the chamber walls is part of one of the outer walls of the vessel; (b) an uptake section above, and in fluid communication with the opening, wherein the uptake section is configured to receive a rotor and rotor shaft, and configured to move molten metal upward and therethrough, and (c) an outlet above the opening, the outlet in fluid communication with the uptake section, wherein the outlet is configured so that molten metal reaching the outlet exits the uptake section through the outlet; andone or more brackets for positioning a pump in the transfer chamber. 39. The vessel of claim 38 that also includes an inner bottom surface that slopes downward towards the opening. 40. The vessel of claim 38 that further includes an entrance to the uptake section. 41. The vessel of claim 40 wherein the outlet is at least two feet above the entrance. 42. The vessel of claim 39 wherein the outlet is at least two feet above the inner bottom surface. 43. The vessel of claim 38 that is comprised of refractory material. 44. The vessel of claim 38 wherein the opening has a cross-sectional area and the transfer section has a second cross-sectional area, the second cross-sectional area being larger than the cross-sectional area. 45. The vessel of claim 38 wherein the transfer chamber is cylindrical. 46. The vessel of claim 38 wherein the transfer chamber has a first vertical section with a first cross-sectional area and a second vertical section having a second cross-sectional area, the second cross-sectional area adjacent the opening, and the second cross-sectional area being smaller than the first cross-sectional area. 47. The vessel of claim 38 wherein the opening has a cross-sectional area and the transfer section has a second cross-sectional area, the second cross-sectional area being smaller than the cross-sectional area. 48. The vessel of claim 46 wherein the transfer section further includes a third vertical section having a third cross-sectional area, the third section being between the first vertical section and the second vertical section, and the third cross-sectional area being smaller than the first cross-sectional area, but larger than the second cross-sectional area. 49. The vessel of claim 38 that has a first side wall and a second side wall opposite the first side wall, and the one or more brackets comprises two metal beams that extend from the first side wall to the second side wall, and each of the metal beams is connected to the first side wall and the second side wall. 50. The vessel of claim 49 wherein each beam is flat. 51. The vessel of claim 49 wherein each beam is L-shaped. 52. The vessel of claim 38 that further includes a wall dividing the vessel into a first section and a second section, wherein the second section includes the transfer chamber. 53. The vessel of claim 38 that further includes a launder in communication with the outlet so that molten metal exiting the outlet passes into the launder. 54. The vessel of claim 38 wherein the transfer chamber has three walls inside the vessel cavity and has a fourth wall that is an outer wall of the vessel. 55. The vessel of claim 49 wherein the one or more brackets and transfer chamber are configured so that when the pumping device is positioned in the transfer section the rotor and rotor shaft are each partially or entirely within the uptake section.
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