Determinative mathematical model of screw conveyor operation
Article Sidebar
Main Article Content
Abstract
Screw conveyors are used in the construction of machines in various industries, including the agricultural sector. They are designed for horizontal, inclined and vertical movement of root crops and can simultaneously perform related functions - their crushing and transportation. The stability or technological integrity of the process of transporting crushed root crops by a screw conveyor largely depends on the stochastic change in the input and output flows, or their disorganization. The article presents a mathematical model that describes the process of transporting crushed root crops taking into account the disorganization of the output flow of the hopper and the output flow of the collecting channel. Based on the model, an analytical dependence is developed to determine the coefficient of disorganization of flows and the limits of its change are established. It is substantiated that the rational operation of the screw conveyor occurs when the value of the disorganization of the output flow of the hopper and the collecting channel is equal to zero, at which the disorganization coefficient is also equal to zero.
Article Details
Issue
Section
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
1. Gevko Iv.B. Scientific and applied foundations of the creation of screw transport and technological mechanisms: abstract of the dissertation ... doctor of technical sciences: 05.05.11 / Iv.B. Gevko. Lviv, 2013. 40 p. [in Ukrainian]
2. Agricultural machinery / D.G. Voytyuk, L.V. Aniskevich, V.M. Baranovsky [and others]. K.: "Agroosvita", 2015. 679 p. [in Ukrainian]
3. Hevko R.B., Romanovsky R.M., Dzyura V.O. Mathematical model of the pneumatic-screw conveyor screw mechanism operation. INMATEH–Agricultural Engineering. 2014. Vol. 44. No 3. P. 103–110.
4. Hevko I. B. Screw transport and technological mechanisms: calculation and design. Ternopil: Ivan Pulyuy Technical University of Technology, 2008. 307 p. [in Ukrainian]
5. Rohatynskyi R., Gevko I. Model for designing and selecting screw conveyors with extended technological capabilities. Bulletin of TNTU. Ternopil: TNTU, 2013. Volume 67. No. 3. P. 197–210. [in Ukrainian]
6. Hevko R.B., Klendiy O.M. The investigation of the process of a screw conveyer safety device actuation. INMATEH–Agricultural Engineering. 2014. Vol. 42. No 1. P. 55–60.
7. Hevko I., Lyubachivskyi R., Dyachun A. Synthesis of mixers with screw working bodies. Bulletin of the Lviv National Agrarian University: Agroengineering Research. 2012. No. 16. pp. 237–246. [in Ukrainian]
8. Rohatynskyi R., Gevko I., Rohatynska L. Optimization of parameters of screw transport and technological systems. Bulletin of TNTU. Ternopil: TNTU, 2013. Volume 69. No. 1. P. 123–130. [in Ukrainian]
9. Pankiv V. Throughput capability of the combined screw chopper conveyor. Scientific Journal of TNTU (Tern.). 2017. Vol. 85. No 1. P. 69–79.
10. Pankiv V.R. Analysis of the process of transporting material by a combined screw conveyor Scientific reports of the National University of Life and Environmental Sciences of Ukraine: electronic scientific professional journal. K., 2017. Vol. 69. No. 5.
11. Pankiv V.R. Theoretical model of the functioning of a screw conveyor. Design, production and operation of agricultural machines. Kropyvnytskyi, 2017. Issue 47, part I. pp. 84–91.
12. Pankiv V.R. Tokarchuk O.A. Іnvestigation of constructive geometrical and filling coefficients of combined grinding screw conveyor. INMATEH–Agricultural Engineering. 2017. Vol. 51. No 1/2017. P. 59–68.
13. Hevko R.B. Feasibility study of mixture transportation and stirring process in continuous-flow conveyors / R.B Hevko, B.O. Yazlyuk, V.R. Pankiv et al. // INMATEH–Agricultural Engineering. 2017. Vol. 51. No 1/2017. P. 49–58.
14. Hrytsay Yu. V. Mathematical model of the functioning of the hopper of the screw conveyor-chopper. Scientific reports of the NUBiP of Ukraine. Technology and energy of the agricultural complex: electronic scientific professional journal. 2018. No. 2(72) (2018). [in Ukrainian]
15. Hrytsay Yu. V. Mathematical model of the process of moving crushed root crops by a screw conveyor-chopper. Bulletin of the LNAU "Agroengineering Research". 2018. No. 22. P. 68 – 77. [in Ukrainian]
16. Baranovsky Viktor, Gritsay Yury, Marinenko Sergey. Experimental studies of the homogeneity coefficient of crushed particles of root crops. Scientific Journal of TNTU. Tern. : TNTU, 2019. Vol 94. No 2. P. 80–89.
17. Vyhovsky A.Yu., Baranovsky V.M., Hrytsai Y.V. and others. Justification of the parameters of screw conveyors-grinders for root crops: monograph. Kyiv: Agrar Media Group, 2019. 300 p. [in Ukrainian]
18. Baranovsky V., Grytsay Yu., Berezhenko B. Experimental studies of the coefficient of crushing of root crops with a screw conveyor-crusher. Inovative solutions in modern science. Dubai. № 4 (31). 2019. P. 20–36.
19. Hevko R.B., Dzyura V.O., Klendii O.M. et al. Justification of rational parameters of a pneumoconveyor screw feeder. INMATEH–Agricultural Engineering. 2018. Vol. 54. No 1/2018. P. 15–24.
20. Baranovsky V.M., Solomka V.O., Onyshchenko V.B. Choice of parameters when designing a screw conveyor. CDTUSG Herald. Vol. 8. No 2. P. 209–215.
21. Baranovsky V.M. Transport-technological systems of cleaning working bodies of the adapted root harvesting machine. Agricultural machinery. 2013. No 24. P. 18–29.
22. Baranovsky V.M., Dubchak N.A., Pankiv M.R. Analysis of the process of operation of pre-cleaning devices of root harvesting machines. Scientific journal. Bulletin of the TDTU. 2007. Vol. 12(1). P. 76–81. [in Ukrainian]
23. Baranovsky V.M., Solomka V.O., Onyshchenko V.B. Choice of parameters when designing a screw conveyor. CDTUSG Herald. 2001. Vol. 8(2). Р. 209–215.