Research on Measurement Method of High Temperature Slag Flow Rate Based on Image Identification

Chong Wang, Hong Wang, Xun Zhu, Xianyan He, TYu Tan, Bin Ding, Yudong Ding


A method for the measurements of the flow rate of high temperature molten slag using image identification was proposed. Image of molten slag could be acquired by high-speed camera. The flow rate of molten slag was calculated by the diameter, which was obtained by the edge detection, and the velocity of the feature points obtaining by threshold segmentation. Feature points could be found on the liquid column of molten slag by photo graphing, which showed that the method is feasible. Then glycerite was used to study the influences of different shooting parameters on the measurement accuracy. The effects of exposure time, frame rate and focal length on measurement accuracy were obtained. At the same time, it was found that the selection of location and length of feature region would also have a significant impact on the measurement accuracy.



Flow; Measurement; Algorithm; High Temperature Molten Slag; Image Identification

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DOI: http://dx.doi.org/10.18282/pef.v9i1.849


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