Статті КТМ (ДІІТ)

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Browsing Статті КТМ (ДІІТ) by Author "Karyachenko, Nataliia V."

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    Perturbation of the First Form of Oscillations of Liquid Metallurgical Slag in the Slag Car Bowl in Transient Operating Modes
    (TECHNOLOGY CENTER PC, Kharkiv, 2025) Povorotnii, Viktor V.; Yaichuk, Oleksandr O.; Karyachenko, Nataliia V.; Shcherbyna, Iryna V.; Pohrebniak, Rodion P.; Zdanevych, Serhiі V.; Kimstach, Tetiana V.; Diachenko, Nina K.
    ENG: The object of this research is the process of oscillation of liquid metallurgical slag in a slag bowl under the influence of acceleration. The work considers the oscillation processes in bowls used on railway and road slug cars, which differ in design and operating conditions. One of the key problems associated with the transportation of liquid slag is the dynamic instability of the melt, which leads to oscillations and splashing, which can pose a safety threat and reduce the efficiency of the transportation process. In this regard, the study of the dynamics of liquid slag in bowls of various designs is an urgent task aimed at optimizing transportation parameters and developing measures to reduce the risk of slag splashing. Based on the results of numerical modeling, it was established that the nature of the oscillations of liquid slag in the bowl significantly depends on the magnitude of the acceleration, the type of slag and the design of the bowl. In particular, the acceleration ranges at which different oscillation modes are observed, from minor surface disturbances to intensive slag splashing, have been determined. At the same time, the differences in the nature of oscillations for different types of slag and bowl designs lie within the limits determined by their physicochemical properties and geometric parameters. The results obtained allow to conclude that it is possible to develop measures for the operation of slag bowls, as well as their designs, in the direction of reducing the amplitude of liquid slag oscillations, which, in turn, contributes to increasing transportation safety and reducing dynamic loads on the bowl walls. The obtained data can be used in the design of new bowl designs to optimize their shape and internal elements in order to minimize slag oscillations. In addition, the information provided can be useful for metallurgical enterprises to develop effective methods for controlling and monitoring slag stability during transportation.