About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Cast Shop Technology
|
Presentation Title |
Industrial Verification of Two Rotor Fluxing in Large Crucibles |
Author(s) |
Terje Haugen, Arild Hakonsen, Vegard Innerdal |
On-Site Speaker (Planned) |
Terje Haugen |
Abstract Scope |
Crucible fluxing is a well known method to reduce the alkaline metal content in potroom metal in an Aluminium smelter. By doing this the need to perform melt treatment inside the casthouse furnace will normally be eliminated. Hycast has beed supplying crucible fluxing (RAM) to the Aluminium business for three decades. Recently Hycast has developed a solution for crucible fluxing in large crucibles with a closed lid used for crane tapping. This paper is about the different technical solutions and the measured performance during industrial operation.
The AlF3 addition rate, rotor speed, and the effect of one versus two rotors are investigated. Halftimes of Sodium (Na) for the two-rotor version is ~0.3min/mt. For the one-rotor version the half time of Sodium is ~0.5min/mt. The temperature loss was lower than expected and the rotor torque higher than expected for the two-rotor RAM stations. |
Proceedings Inclusion? |
Planned: Light Metals |