Кафедра машин і агрегатів металургійного виробництва (ІПБТ) (з 2022 р увійшла до складу кафедри Галузеве машинобудування ІПБТ)

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http://crust.ust.edu.ua/handle/123456789/15005
ENG: Department of metallurgical production machines and units (IIBT)

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Browsing Кафедра машин і агрегатів металургійного виробництва (ІПБТ) (з 2022 р увійшла до складу кафедри Галузеве машинобудування ІПБТ) by Author "Baiul, Kostiantyn V."

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    Modelling of the Fine-Grained Materials Briquetting Process in a Roller Press with the Discrete Element Method
    (MDPI, Basel, Switzerland, 2022) Bembenek, Michał; Buczak, Magdalena; Baiul, Kostiantyn V.
    ENG: By using the Altair® EDEM ™ software, which implements the discrete element method, modelling and further study of the processes occurring in the roller press’s deformation area were carried out. It was shown that the discrete element method makes it possible to accurately describe the phenomena occurring in the area of roller press deformation compared with the finite element method. Models of material compaction in a roller press are developed using calcium hydroxide (slaked lime) and copper ore concentrate. The developed model makes it possible to determine the process’s energy parameters and the material’s compaction characteristics, taking into account the characteristics of its constituent particles. It was shown that discrete element modelling could be used effectively to create roller presses that provide rational characteristics of the briquetting process, taking into account the properties of the material being briquetted and the operating modes of the equipment. The results of the studies provided the basis for the applicability of the development of the discrete element method for describing the phenomena occurring in roller presses and accelerating the design of press equipment and briquetting technological processes.
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    Optimization of Briquetting Technology of Fine-Grained Metallurgical Materials Based on Statistical Models of Compressibility
    (Elsevier, Netherlands, 2022) Khudyakov, Alexander; Vashchenko, Sergii; Baiul, Kostiantyn V.; Semenov, Yurii; Krot, Pavlo
    ENG: This paper represents the study of the briquetting process optimization of metallurgical charges. A new measure of briquettes’ quality – the compression intensity factor, is developed. Using the design of experiments, the nonlinear relationships are established of given factors: the content of plasticizer and moisture, hardness of the particles, dynamic viscosity of the liquid binder, amount of carbonaceous component and the average particle size in the charge. The adequateness of the models was estimated. It is shown that the greatest influence on compressibility has the hardness of the particles while the dynamic viscosity of the liquid binder has a minimum effect. An effective way to control the briquetting process is to change the content of the plasticizer and moisture. In the case of iron carbon mixtures, it is necessary to control simultaneously the content of carbonaceous material and the particle size of both components. The article provides detailed recommendations on results implementation.