Volodymyr Nadutyi, Valentyna Chеlyshkinа, Vitalii Sukhariev, Jamil Haddad. Energy estimation of the interaction of a roller vibratory classifier’s blade with crushed rock mass for solving design problems

Details

Parent Category: Geo-Technical Mechanics, 2020

Category: Geo-Technical Mechanics, 2020, № 154

Geoteh. meh. 2020, 154, 172-178

https://doi.org/10.1051/e3sconf/202016800058

 

ENERGY ESTIMATION OF THE INTERACTION OF A ROLLER VIBRATORY CLASSIFIER’S BLADE WITH CRUSHED ROCK MASS FOR SOLVING DESIGN PROBLEMS

¹Volodymyr Nadutyi, ¹Valentyna Chеlyshkinа, ¹Vitalii Sukhariev, ²Jamil Haddad

¹Institute of Geotechnical Mechanics named by N. Poljakov of National Аcademy of Sciences of Ukraine, ²Al-Balqa Applied University

Language: Englis

Abstract. The roller vibratory classifier is equipped with an impact device for implementing vibro-shock mode, which improves the classification efficiency, especially of viscous and wet materials. The new device is a disk nozzle with blades, which are made like petals of wear-resistant polymer. The immersion of a petal at a given depth in a crushed rock mass is investigated experimentally. Theoretical studies includes pair correlation and regression analysis methods. it is obtained that an increase in humidity promotes penetration and leads to a decrease in the energy necessary for impact, whereas an increase in particle size and layer thickness leads to its increase. Analysis of regression equations makes it possible to establish the percentage ratio of influencing factors. The article presents mathematical models of impact energy from variable factors for the initial moisture content of the material, including separately for small classes (-2.5 + 1) mm and further, with variation of all three parameters in the range: layer thickness – 20-40 mm, particle size 1-10 mm, humidity – up to 9 %. The obtained correlation dependencies and regression models are necessary for improving the existing and designing new blade-type roller vibratory classifiers.

REFERENCES

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2. Nadutyi, V.P., Iagniukov, V.F., Iagniukova, I.V. (2015). Sposob klassifikatsii trudnoobogatimogo mineralnogo syria [Method of classification of hard-to-sieve mineral materials] Patent No 108453, Ukraine

3. Nadutyi, V.P, Jamil Haddad, Sukhariev, V.V. (2018), Investigation of the process of destruction of a layer of mined rock by the toothed disc of the roller classifier. Proceedings of the XVII International Science-Techn. Conf. "Vibration in Engineering and Technology", Nat. University "Lviv Polytechnic", Lviv

4. Nadutyi, V.P, Yagnyukov, V.F., Yagnyukova, I.V. (2017). Productivity of roll vibro-impact classifier depending on design and operating parameters based on experimental studies. Proceedings of the Ukraine Science-Techn. Conf., National Metallurgy Academy, Inst. of Black Metallurgy, 46-48.

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