| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrode Technology for Aluminum Production
|
| Presentation Title |
Effects of Stub Preheating Temperature on the Anode Voltage Drop in the Aluminium Reduction Cell |
| Author(s) |
Tuofu Li, Wenju Tao, Zhaowen Wang |
| On-Site Speaker (Planned) |
Tuofu Li |
| Abstract Scope |
The anode rodding process has significant effects on the anode performance in the cell. In this study, numerical simulations are conducted to investigate the effects of the stub preheating temperature before anode rodding on the anode voltage drop. Numerical simulation results show that the anode voltage drop increases from 295 mV with no stub preheating to 357 mV with the stub preheating temperature of 400 ℃. The reasons are analyzed as follows. With the stub preheating temperature increasing, the stub temperature during anode casting also increases, which leads to the increase in the initial cast iron-to-carbon air gap after anode rodding. When the anode with the enlarged initial cast iron-to-carbon air gap is running in the cell, the real contact area between the cast iron and the carbon becomes small, and the stub-to-carbon voltage drop, as well as the total anode voltage drop, increases. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Modeling and Simulation, Other |