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Testing Feeding Alumina in Three Channels in a Wide Cell

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Light Metals 2023 (TMS 2023)

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

For years, Barry Welch has been promoting the idea of designing wider cells. Preliminary modelling work (Dupuis and Welch in Aluminium 93:45–49, 2017; Dupuis in Proceedings of the 37th international ICSOBA conference, 2019, 849–859) already demonstrated some of the advantages of using wider cells like reducing the external potshell area per electrolysis area ratio that helps the design of low energy consumption cells and reducing the potshell length to width ratio that helps designing even higher amperage cells without further increasing the potroom width and the crane span. A third advantage is to help reduce the formation of dissolved alumina concentration gradient in the bath by allowing the addition of two new alumina feeding channels. The MHD cell stability code MHD-Valdis including its alumina dissolution module has been used to study the impact of the addition of two extra longitudinal feeding channels in order to use three channels to feed alumina into the cell. Results obtained will be presented.

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Correspondence to Marc Dupuis .

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Dupuis, M., Bojarevics, V. (2023). Testing Feeding Alumina in Three Channels in a Wide Cell. In: Broek, S. (eds) Light Metals 2023. TMS 2023. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-22532-1_13

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