|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Aluminum Reduction Technology
||Experience with Lengthy Pot Hibernation at Alcoa Baie-Comeau
||Xiangwen Wang, Marie-Eve Laframboise, Patricia Gagnon, Gilles Proulx
|On-Site Speaker (Planned)
Two AP18 pots were put into sleep (hibernation state) from a normal production state. The pots were then maintained at the hibernation state for about 4 weeks. They were then woken up and successfully transitioned back to their normal operation. During the hibernation period, the pot was operated at the line current amperage and maintained around 840 to 860 degree C. This paper presents the pot thermal behavior and responses at different phases of the hibernation process from transitioning into a hibernation state, maintaining a stable sleep state, to waking up and transitioning back to a normal production state. Some special adjustments were necessary for each phase during the hibernation process. Interesting observations were made, some unanticipated events which had to be dealt with effective counter measures, are also presented and discussed.
||Planned: Light Metals