Abstract
High frequency measurements of voltage were introduced at Elkem Aluminium Lista in order to find the effect of noise from the release of gas bubbles under the anode — bubble noise. On a Søderberg pot the bubble noise represents a fairly large portion of the total pot noise. Hence it is important to understand what impacts the bubble noise in order to understand and control the Søderberg pot in a better way.
The bubble noise varies quite a lot over time and between pots. The variations are related to different process conditions. Looking at number of anode problems and carbon dust generation there is a correlation between the bubble noise and the quality of the Søderberg anode. The metal quality is also strongly impacted by a change in the bubble noise. Several process conditions have been investigated, presented and discussed in the paper.
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References
T.B.Pedersen et al., “Results from implementation of point feeders and complete hooding on VS Søderberg pots”, Light Metals 1998, pp. 221–226.
T.B. Pedersen, The Søderberg Cell Technology — present performance, challenges and possibilities, Light Metals 2001, pp. 489–495
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© 2016 The Minerals, Metals & Materials Society
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Jensen, M., Pedersen, T.B., Kalgraf, K. (2016). Bubble Noise from Søderberg Pots. In: Bearne, G., Dupuis, M., Tarcy, G. (eds) Essential Readings in Light Metals. Springer, Cham. https://doi.org/10.1007/978-3-319-48156-2_38
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DOI: https://doi.org/10.1007/978-3-319-48156-2_38
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48155-5
Online ISBN: 978-3-319-48156-2
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