Research on Fluid Flow Characteristics in Converter Tapping Process

In the process of converter tappingConverter tapping, the process parameters of the tapping holeTapping hole are essential for the flow characteristics of molten steelFlow characteristics of molten steel and the tapping timeTapping time. ANSYS FLUENT19.3 software is used to establish a three-dimensional model of a 200t converter and ladle and investigate the distribution law of molten steel flow field during the tapping process of the converter under different tapping parameters by volume of fluid model. The molten steel flow rate is more uniform and stable, and the turbulence is significantly reduced when the shape of the tapping holeTapping hole is a segmented variable diameter type, the diameter is 180–160 mm, and the angle to the horizontal direction is 10°, thereby reducing the degree of erosion at the tapping holeTapping hole. The error between the simulation and the actual tapping timeTapping time is within 5%, which verifies the accuracy of the model. It provides theoretical support for optimizing the process parameters of the converter tappingConverter tapping hole and studying the temperature drop law of the tapping process.