1. 北京科技大学,北京北科麦思科自动化工程技术有限公司,北京 100083; 2. Swinburne University of Technology, Australia
Rapid image analysis of ladle eye area by threshold setting method
HAN Ling-sheng1,XU Xiao-dong2,GEOFF Brooks2
1. Beijing Beike MASIC Automation Engineering Technology Co., Ltd., University of Science & Technology Beijing, Beijing 100083, China; 2. Swinburne University of Technology, Australia
Abstract：In the secondary refining process of steel, inert gas (Ar) sub-aeration method is a conventional method to stir the molten steel in ladle, which aimed to ensure the homogeneity of molten steel and accelerate the reaction between slag and metal phase. The area of ladle eye has significant effect on the absorption of air (O2, N2) and the formation of slag, while the component and morphology of slag determines the quality of molten steel and its products. On-line analysis of ladle eye could help the operators master the variety and amount of slag constituent and control the ventilatory amount (pressure or flow rate). This paper gave an illustration on rapid analysis technology based on top digital image of ladle. Through cold model experiment and practical test of industrial steel furnace, this technique could effectively work out the area of ladle eye at an speed faster than 0.1 s/frame. It could basically satisfy the demand of real-time measurement.
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