Transferring molten metal from one structure to another
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B22D-037/00
C21C-005/04
출원번호
US-0766617
(2007-06-21)
등록번호
US-8337746
(2012-12-25)
발명자
/ 주소
Cooper, Paul V.
출원인 / 주소
Cooper, Paul V.
대리인 / 주소
Snell & Wilmer LLP
인용정보
피인용 횟수 :
29인용 특허 :
299
초록▼
A system for transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a mo
A system for transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, and a device or structure, such as a molten metal pump, for generating a stream of molten metal. The dividing wall divides the vessel into a first chamber and a second chamber, wherein part of the second chamber has a height H2. The device for generating a stream of molten metal, which is preferably a molten metal pump, is preferably positioned in the first chamber. When the device operates, it generates a stream of molten metal from the first chamber and into the second chamber. When the level of molten metal in the second chamber exceeds H2, molten metal flows out of the vessel and into another structure, such as into one or more ladles and/or one or more launders.
대표청구항▼
1. A system for transferring molten metal out of a vessel, the system comprising: (a) a vessel;(b) a dividing wall in the vessel for dividing the vessel into a first chamber and a second chamber, the dividing wall having an opening and a height H1; and(c) a molten metal pump in the first chamber tha
1. A system for transferring molten metal out of a vessel, the system comprising: (a) a vessel;(b) a dividing wall in the vessel for dividing the vessel into a first chamber and a second chamber, the dividing wall having an opening and a height H1; and(c) a molten metal pump in the first chamber that has a pump base fully submerged in molten metal in the first chamber, and support posts connecting the pump base to a superstructure that supports a motor, the pump base having a top and a bottom, an inlet at the top, the inlet leading to a pump chamber, and a rotor positioned in the pump chamber, the rotor including a flow-blocking and bearing plate at the bottom surface of the pump chamber, wherein molten metal enters the pump chamber through the inlet at the top surface and is moved out of the pump chamber by the movement of the rotor to create a stream of molten metal through the opening in the dividing wall, and from the first chamber into the second chamber, wherein part of the second chamber has a height H2, and wherein H2 is less than H1;wherein when the pump is activated molten metal is pumped from the first chamber through the opening in the dividing wall into the second chamber until the level of molten metal in the second chamber exceeds H2 and moves out of the second chamber. 2. The system of claim 1 wherein the vessel is a reverbatory furnace. 3. The system of claim 1 that further includes a ladle, wherein when molten metal moves out of the second chamber it moves into the ladle. 4. The system of claim 1 that further includes an ingot mold, wherein when molten metal moves out of the second chamber, it moves into the ingot mold. 5. The system of claim 1 that further includes a launder and a ladle, wherein when molten metal moves out of the second chamber it moves into the launder, and through the launder into the ladle. 6. The system of claim 1 that includes a plurality of ladles, wherein when molten metal moves out of the second chamber, it moves into each of the plurality of ladles. 7. The system of claim 1 that includes one or more ladles and one or more ingot molds, wherein when molten metal moves out of the second chamber it moves into at least one ladle and at least one ingot mold. 8. The system of claim 1 that further includes one or more launders, wherein when molten metal moves out of the second chamber it moves into at least one of the one or more launders. 9. The system of claim 8 wherein each of the one or more launders into which molten metal flows when it moves out of the second chamber feeds either an ingot mold, a ladle or a feed die cast machine. 10. The system of claim 1 wherein the pump is a transfer pump and transfers molten metal over the dividing wall and into the second chamber. 11. The system of claim 1 wherein the pump is a circulation pump that generates a flow of molten metal through the opening in the dividing wall and into the second chamber. 12. The system of claim 1 wherein the pump is a gas-release pump that generates a flow of molten metal through the opening and into the second chamber. 13. The system of claim 1 that further comprises a rotary degasser in the second chamber. 14. The system of claim 1 that further comprises a launder into which molten metal moves when it moves out of the second chamber, the launder having a first end juxtaposed the second chamber, a second end opposite the first end, and a dam, wherein the dam can be opened to allow molten metal to flow past the second end and closed to prevent molten metal from flowing past the second end. 15. The system of claim 14 wherein the dam is juxtaposed the second end. 16. The system of claim 1 wherein only part of the dividing wall has a height H1 and part of the dividing wall has a height greater than H1. 17. The system of claim 1 wherein the dividing wall opening is positioned beneath H1, the pump is either a circulation pump or gas-release pump and has a pump base partially received in the opening. 18. The system of claim 17 that further includes sealant to seal between the pump base and the opening. 19. The system of claim 1 wherein the pump has a variable speed. 20. The system of claim 19 that further includes a launder, wherein the speed of the pump is varied based upon the amount of molten metal in the launder. 21. The system of claim 18 that further includes a ladle, wherein the speed of the pump is varied based upon the amount of molten metal in the launder. 22. The system of claim 1 wherein the dividing wall has an opening and the opening has an area of between 6 inches2 to 24 inches2. 23. The system of claim 11 further comprising a control system operative to increase or decrease the speed of the circulation pump. 24. The system of claim 12 further comprising a control system operative to increase or decrease the speed of the gas-release pump. 25. The system of claim 1 that further includes a control system for a molten metal pump, the control system operative to measure an amount of molten metal within at least one structure and to adjust the speed of the molten metal pump in response to the measurement of the amount of molten metal. 26. The system of claim 25 wherein the property is at least one of a level of molten metal and a weight. 27. The system of claim 25 wherein the control system includes: an emitter operative to provide a pulse of energy to the molten metal; anda sensor operative to detect a reflection of the pulse of energy. 28. The system of claim 27 wherein the emitter is a laser device. 29. The system of claim 25 wherein the structure is one or more of the first chamber, the second chamber, a ladle, and a launder. 30. The system of claim 25 wherein the control system is configured to control the speed of the pump by measuring the respective amounts of molten metal in numerous vessels. 31. The system of claim 25 wherein the control system is configured to control the speed of the pump by measuring the weight of molten metal in a launder. 32. The system of claim 25 that further comprises a control panel, the control panel including: (a) a control operative to choose between automatic and manual control of the molten metal pump; and(b) a control operative to turn a sensor on and off. 33. The system of claim 1 wherein when metal moves out of the second chamber it moves into a feed die cast machine. 34. The system of claim 1 wherein the vessel has a bottom surface, wherein the pump base does not rest on the bottom surface. 35. The system of claim 1 wherein there is no chamber or cavity between the first chamber and the second chamber.
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