| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Reduction Technology
|
| Presentation Title |
Industry Case Study: Optimisation of Alumina Feed Cycle According to Anode Process Operation |
| Author(s) |
André van Haaren, Hanno Vogel, Nicholas Hahn, Roman Düssel |
| On-Site Speaker (Planned) |
André van Haaren |
| Abstract Scope |
Increasing current and reducing the anode-cathode-distance are ongoing trends for pushing the productivity and reducing the energy consumption. This makes it more difficult for the feeding technologies to catch up. In this work the feeding is analysed in relation to the anode change phases. In particular anode effects and overfeeding phases were examined for abnormalities in the periods before and after anode changes. A critical time for anode effects was found in the last few hours before the next anode change, due to minimal secondary feeding. As a solution the development of a variable feed rate scheme depending on the different stages of the anode change cycle is presented. The tendency for sludge formation immediately after the anode change, as well as the periods of minimal secondary feeding were taken into account. Significant improvements in the anode effect rate and more stable feeding cycles were observed. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Process Technology, |