TRANSFERRING MOLTEN METAL USING NON-GRAVITY ASSIST LAUNDER
First Claim
1. A method for transferring molten metal from a first vessel, the first vessel comprising at least a first chamber and a second chamber, the first chamber and second chamber being separated by a dividing wall, the method comprising:
- pumping molten metal from the first chamber past the dividing wall into the second chamber raising the level of molten metal in the second chamber until it flows out of the second chamber and into a launder, wherein the launder has a horizontal angle of between 0° and
10°
to permit molten metal to flow backward into the second chamber when the pumping ceases.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for transferring molten metal from a vessel and into a launder 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 the launder. The launder has a horizontal angle of between 0° and −10° to help prevent dross from being pulled by gravity into downstream vessels.
-
Citations
18 Claims
-
1. A method for transferring molten metal from a first vessel, the first vessel comprising at least a first chamber and a second chamber, the first chamber and second chamber being separated by a dividing wall, the method comprising:
pumping molten metal from the first chamber past the dividing wall into the second chamber raising the level of molten metal in the second chamber until it flows out of the second chamber and into a launder, wherein the launder has a horizontal angle of between 0° and
10°
to permit molten metal to flow backward into the second chamber when the pumping ceases.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification