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Published in:
2016 | OriginalPaper | Chapter
Thermal Events of the Early Life of an Aluminum Electrolysis Cell
Authors : Ádam Ugron, László I. Kiss, Jean-François Bilodeau, Sébastien Guérard
Published in: Light Metals 2014
Publisher: Springer International Publishing
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The efficient and long operation of an aluminum reduction cell strongly depends on the early period of the pot-life. In order to have a record of the events of the cell structure’s thermal state, the temperature in the sidewall was monitored. The unsteady thermal events were compared with the cell voltage as well as correlated with various events during the early pot-life.We found that with the proper positioning of the thermocouples, major events can be detected. Apart from the detection of the effect of different events along the sidewalls, the temperature signals can provide further information. We propose various signal properties such as frequency content, amplitude and phase information, which can be exploited in the thermal diagnostics of an electrolysis cell.With in-situ measurement examples we demonstrate that the temperature signal of the sidewall provides useful information in both operation and the diagnostics of the aluminum electrolysis cells.