Molten metal transfer and degassing system
First Claim
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1. A system for transferring molten metal out of a vessel, the system comprising:
- (a) a vessel, the vessel having an inlet, a cavity and including a transfer chamber having an opening at the bottom of the transfer chamber, the opening in communication with the cavity;
(b) the transfer chamber including an uptake section above the opening;
(c) an outlet in communication with the uptake section and that is positioned above the opening and leads out of the vessel; and
(d) a molten metal pump having a motor, a drive shaft having a first end connected to the motor, the drive shaft extending into the uptake section that is above a rotor, the drive shaft having a second end connected to the rotor, wherein the rotor is in or beneath the uptake section and configured to move molten metal upward into the uptake section, where it exits the outlet and exits the vessel.
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Accused Products
Abstract
Disclosed, among other things, is a transfer chamber constructed inside of or next to a vessel used to retain and degas molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel is pulled through the vessel by the pump as it is degassed. This helps maintain a generally constant flow of molten metal through the degassing vessel. Other aspects relate to a system and method for efficiently performing maintenance on components positioned in a vessel.
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Citations
41 Claims
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1. A system for transferring molten metal out of a vessel, the system comprising:
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(a) a vessel, the vessel having an inlet, a cavity and including a transfer chamber having an opening at the bottom of the transfer chamber, the opening in communication with the cavity; (b) the transfer chamber including an uptake section above the opening; (c) an outlet in communication with the uptake section and that is positioned above the opening and leads out of the vessel; and (d) a molten metal pump having a motor, a drive shaft having a first end connected to the motor, the drive shaft extending into the uptake section that is above a rotor, the drive shaft having a second end connected to the rotor, wherein the rotor is in or beneath the uptake section and configured to move molten metal upward into the uptake section, where it exits the outlet and exits the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification