Development and application of continuous casting slab quality analysis and monitoring system
Continuous casting is the central link in the steel manufacturing process,and the quality of continuous casting slab directly determining the production efficiency and quality of steel products.In the process of steel manufacturing,online prediction of the occurrence and disappearance of quality defects in the casting slab,timely tracing of the causes of defects,plays an important role in improving the quality of the casting slab,stabilizing the process connection,and reducing production costs.In response to the characteristics of the continuous casting production process,with slag inclusion defects on the surface of the slab as a breakthrough point,based on the principles of the continuous casting process and the data platform for analyzing the continuity of the entire process of HBIS Group Laoting Iron and Steel Co.,Ltd.,information communication technology,computer technology,and big data mining technology are applied to develop a continuous casting slab quality analysis and monitoring system,which achieves functions such as matching and integrating slab quality data,predicting and tracing slab quality defects.The system has been applied online on the slab continuous casting ma-chine.The prediction accuracy of slag inclusion defects on the surface of continuous casting slab is 99.95％,the false alarm rate is 0.02％,and the missed detection rate is 35.41％.The successful online application of the continuous casting slab quality analysis and monitoring system has promoted the transformation and upgrading of intelligent manufacturing at HBIS Group Laoting Iron and Steel Co.,Ltd.
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