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Fault Detection and Prediction for a Wood Chip Screw Conveyor

Henriques Lucas, Farinha Torres, Mendes Mateus

Eksploatacja i Niezawodność

2024

Vol. 26, no. 3

art. no. 189323

Equipment maintenance is a key aspect to maximize its availability. Nowadays, much of the functioning and condition monitoring data from industrial machines is collected through sensors and stored, for off-line analysis. The present work focuses on data analysis of a screw conveyor of a biomass industry. The screw velocity and load were monitored and analysed, in order to detect and predict possible faults. A machine learning approach was used to detect anomalies, where different algorithms were tested with the data available, in order to train an anomaly classifier. The anomaly classifier was able to accurately identify most anomalies, based on historical data, temporal patterns and information of the maintenance interventions performed. The research carried out allowed to conclude that the Extra Trees Classifier algorithm achieved the best performance, among all algorithms tested, with 0.7974 F-score in the test set. The anomaly classifier has been shown to achieve remarkable accuracy in identifying anomalies. This research not only improves understanding of the performance of screw conveyors in biomass industries, but also highlights the practical utility of employing machine learning for proactive fault detection.