A smooth hearth drainage is one of the key requirements for maintaining an efficient blast furnace operation. For achieving this, it is necessary to understand the hearth drainage behavior and the effect of related process parameters. To investigate the drainage, a set of experiments is conducted in a 2D Hele−Shaw model, where the influence of the initial accumulated amount of molten liquids (iron and slag), blast pressure, and slag viscosity on the drainage behavior is studied using water and oil as liquids. To quantify the findings, an image analysis-based algorithm is applied to extract drainage information that is used to analyze the effect of the mentioned process factors on the evolution of the liquid levels and volumes, flow rates, share oil in the outflow, and angle of the interfaces at the outlet. Herein, the implications of the results for the operation of the blast furnace hearth are discussed.

中文翻译：

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基于图像分析的高炉炉膛排水试验研究

顺畅的炉缸排水是保持高炉高效运行的关键要求之一。为了实现这一点，有必要了解炉膛排水行为和相关工艺参数的影响。为了研究排水，在二维 Hele-Shaw 模型中进行了一组实验，其中使用水研究了熔融液体（铁和炉渣）的初始累积量、鼓风压力和炉渣粘度对排水行为的影响和油作为液体。为了量化研究结果，应用基于图像分析的算法来提取排水信息，用于分析上述过程因素对液位和体积、流速、流出中的油分和角度演变的影响出口的接口。在此处，