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Nissilä, J., Pylvänäinen, M., Laurila, J., Ollila, S., Visuri, VV., Liedes, T. (2023). Detecting Gas Injection Problems in Vacuum Tank Degassing Using Measurements of Multiple Variables. In: Juuso, E., Galar, D. (eds) Proceedings of the 5th International Conference on Maintenance, Condition Monitoring and Diagnostics 2021. MCMD 2021. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-1988-8_3

Detecting gas injection problems in vacuum tank degassing using measurements of multiple variables

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Author: Nissilä, Juhani1; Pylvänäinen, Mika1; Laurila, Jouni1;
Organizations: 1Intelligent Machines and Systems, University of Oulu, PO Box 4200, FI-90014, Oulu, Finland
2Technical Development, Steelmaking, SSAB Europe Oy, PO Box 93, 92101 Raahe, Finland
3Process Metallurgy Research Unit, University of Oulu, PO Box 4300, 90014 Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe20230831114563
Language: English
Published: Springer Nature, 2023
Publish Date: 2025-07-19
Description:

Abstract

By monitoring the simultaneous time series measurements of ladle vibration, vacuum tank pressure and argon gas flow rates of two gas channels, we can detect multiple different fault states in the vacuum tank degassing process. These problems are typically caused by leaking or blockages in the gas lines or in the two porous plugs at the bottom of each ladle. We group the stirrings into the following categories: normal operation, problem in one of the gas lines, poor stirring efficiency and operator actions related to it and also temporary increase in vacuum tank pressure.

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Series: Lecture notes in mechanical engineering
ISSN: 2195-4356
ISSN-L: 2195-4356
ISBN: 978-981-99-1988-8
ISBN Print: 978-981-99-1987-1
Pages: 31 - 42
DOI: 10.1007/978-981-99-1988-8_3
OADOI: https://oadoi.org/10.1007/978-981-99-1988-8_3
Host publication: Proceedings of the 5th International Conference on Maintenance, Condition Monitoring and Diagnostics 2021
Host publication editor: Juuso, Esko
Galar, Diego
Conference: International Conference on Maintenance, Condition Monitoring and Diagnostics
Type of Publication: A4 Article in conference proceedings
Field of Science: 214 Mechanical engineering
Subjects:
Ladle metallurgy
Vacuum tank degassing
Vibration monitoring
Article
Copyright information: © 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.