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Restart of AP30 Cells at Boyne Smelters

2024; Springer International Publishing; Linguagem: Inglês

10.1007/978-3-031-50308-5_69

2367-1181

Daniel Whitfield, Murray Ure, Rashmi Jena, Evan Andrews, Shashidhar Ghatnatti,

Recycling and Waste Management Techniques

In 2022, Reduction Line 3 at Boyne Smelters Limited (BSL) underwent a process excursion that resulted in multiple cellsCell having to be cut out. As part of the recoveryRecovery process, a cellCell restartRestart methodology for the AP30 technology cellsCell was developed based on a survey of the different practices both within Rio Tinto AluminumAluminum and at other smelters. Subsequent trials of restarting several cellsCell in RL3 allowed for the development and refinement of the optimal methodMethod for cathodeCathode preparation, inspection, preheatPreheat, and stable early-life operationOperation. Out of the 24 cellsCell selected for possible restartRestart, 19 cellsCell were started successfully, 4 cellsCell were scrapped during inspection, and only one cellCell had to be cut out prematurely. The oldest cellCell started was 1489 days. The RL3 restartRestart project has been a great example of effective collaboration, resulting in a successful outcome for the BSL reduction, reconstruction, and technical teams.