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Impacts of Mineralogy on Soluble Phosphorus Concentrations During Low Temperature Processing of Jamaican Bauxites Read chapter Read first chapter

2020 | OriginalPaper | Chapter

Fault Detection and Diagnosis of Alumina Feeding System Using Individual Anode Current Measurement

Authors : Yuchen Yao, Jie Bao, Maria Skyllas-Kazacos, Barry J. Welch, Ali Jassim

Published in: Light Metals 2020

Publisher: Springer International Publishing

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Abstract

With the growth in sizes of the Hall-Héroult cells, the detection and diagnosis of faults in the Hall-Héroult process is becoming more difficult, as the information from the cell resistance, which is obtained from the line current and cell voltage, only indicates overall conditions of the cell. In order to achieve improved process efficiency, the measurement of individual anode current has been studied extensively in recent years. Unlike conventionally measured line current and cell voltage, individual anode currents provide information about the localized cell conditions. This paper presents a method to detect faults in the alumina feeding system in the Hall-Héroult cells from individual anode current measurement. It involves the dynamic estimation of the feeding system operating conditions by incorporating a mass balance model, without using physical sensors attached to the feeders. This method is shown to be effective in observing feeder failure, evaluating the seriousness of the fault and identifying failed feeder location.

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previous chapter Anodic Incident Detection through Multivariate Analysis of Individual Anode Current Signals
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Metadata
Title
Fault Detection and Diagnosis of Alumina Feeding System Using Individual Anode Current Measurement
Authors
Yuchen Yao
Jie Bao
Maria Skyllas-Kazacos
Barry J. Welch
Ali Jassim
Copyright Year
2020
Book
Light Metals 2020

Print ISBN: 978-3-030-36407-6

Electronic ISBN: 978-3-030-36408-3

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-3-030-36408-3_75

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