Research working process sorting of materials and dynamic parameters of vibration screen
DOI:
https://doi.org/10.31548/machenergy2020.01.029Keywords:
Research working process sorting of materials and dynamic parameters of vibration screenAbstract
Reasonable preconditions and assumptions in the study of the working process of sorting construction material are selected model of the system "vibration damping roller - sorting material", which adequately reflects the actual sorting process. The influence factors of the process of material sorting are studied: granulometric composition and grain shape of the fraction, density and moisture content of the raw material, thickness of the material layer on the screen, the speed of the grains on the screen. As for the sieve, the following factors were: the sorting mode and its parameters - the amplitude and frequency of oscillations, the angle of inclination of the box, the shape and size of the holes of the sieve, the size of the surface of the sorting and the mode of operation of the sieve, which implements these parameters. It has been found that increasing the length increases the probability of passing particles through the screen, increasing the efficiency of the sorting. The working process of material sorting with successive movement of material particles in the field of harmonic and subsequently and shock-vibrational action is investigated. The evaluation of the sorting process and the parameters of this process are determined. It is proved that the use of common harmonic and shock modes of motion is effective. It is this hypothesis that is the basis of this study. The reliability of the direction is due to the fact that, when implementing the vibration damping mode of sorting, the force effect on the material particles is significantly increased. As a result, the possibility of self-cleaning of those openings in which material particles are stuck and the increase of efficiency and productivity of the sieve is realized. The design scheme is developed and the equations of the joint motion of the studied system are obtained. The solution of the equations is determined by dimensionless parameters, which serve as criteria for evaluation of the vibration shock mode of sorting. The determinated of changes in boundaries of dimensionless parameters that reflect the steady-state operation of a shock-vibration sieve, implementing an efficient sorting process in a mode that is close to resonant. A map of stability was provided and the vibration shock mode was provided at the main resonance. Experimental researches of efficiency of realization of joint vibration and shock mode of sorting on the newly created installation are carried out. Comparison of the parameters obtained by theoretical and experimental paths confirmed the reliability of the assumptions and assumptions adopted in the study. The algorithm of calculation of the "sieve - material" system is developed, the construction of a vibration damping crane is proposed, the novelty of which is confirmed by a patent for a utility model.References
Weissberg L. A. (2006). Designing and calculating of vibrating screens. Moscow: Nedra, 144.
Weissberg L. A. (2005). Screening Surfaces. Structures, materials, experience of application. St.Petersburg: ALL WEEKS. 250.
Nazarenko I. I. (2009). Machines for the production of building materials: a textbook. Kyiv. KNUBA. 544.
T-H Kim, I. Maruta, T. Sugie, (2010). A Simple and Effective Constrained Particle Swarm Optimization and its Application to Engineering Design Problems, Journal of Mechanical Engineering, Vol. 224, No 2, 389-400. https://doi.org/10.1243/09544062JMES1732
Bolotnik N. N. (2006). Dynamics of controlled motions of vibrational systems. Izvestiya RAN. Theory and control systems. 15. 157-167.
Pelevin A. E. (2011). Probability of passage of particles through a sieve and the process of segregation on a vibrating screen. Izvestiya high schools. Mountain journals. No. 1. 119-129.
Tkachuk N. A., Grabovsky A. V., Tkachuk N. N., Kostenko Yu. V., Artemov I. V. (2011). Numerical modeling of dynamic processes in vibro-impact systems. "Bulletin of the NTU "KPI". That's it. issue: Mathematical modeling in technology and technologies, № 42, 179-187.
Volkov E. B., Glukhikh I. A., Lyaptsev S. A. (2013). Theoretical analysis of the technological parameters of vibrating screens. Modern problems of science and education. № 6 (application "Technical sciences"). 12.
Features of high-quality screening (2007). [Electronic resource]. Mining industry. No. 6. P. 42-43. Access mode: http://www.miningmedia.ru/en/article/gorobor/871-osobennosti-vysokochastotnogo-grokhocheniya.
Panovko G. Ya. (2006). Dynamics of vibrational technological processes. Moscow: SIC "Regular and chaotic dynamics", Institute of Computer Research. 158.
Gerega I. I. (2005). Interaction of working load with a working body in shock-vibration machines. Problems of Strength. No. 4. 74-82.
Novokhatniy V., Kostenko S. (2014). Reliability of cooling circulating water supply systems. MOTROL. Commission of Motorization and Energetics in Agriculture. Vol. 16. No. 6, 77-84.
Chekmenev V. (2015). The optimization work of diesels of agricultural machinery and tractors. MOTROL. Commission of Motorization and Energy in Agriculture. Vol. 17, No. 1, 5-10.
Nazarenko I. I. (2010). Applied problems of the theory of vibration systems. Tutorial. (2nd edition). Kyiv. Publishing House "Word". 440.
Orishchenko S. V. (2008). Investigation of the influence of mass of material on the sieve of a vibrating screen. Engineering of construction. № 21. 157-160.
Nazarenko I. I. (2009). Modeling of the process of motion of the material on the screen. Engineering of Construction. No. 22. 81-84.
Matsyuk B. V. (2014). Estimation of the structural elements of the vibrating screen. The theory and practice of construction. No. 13. 26-29.
Matsyuk B .V. (2015). Increasing the efficiency of working parameters of vibration separation of building materials. Engineering of construction. No. 34. 34-37.
Arsentyev V. A, Blekhman I. I, Blekhman L. I., Weissberg L. A., Ivanov K. S., Krivtsov A. M. (2010). Methods of the dynamics of particles and discrete elements as an instrument for studying and optimizing the process of processing natural and man-made materials. Enrichment of ores. № 1. 30-35.
Volkov E. B. Lyaptsev S. A. (2013). Influence of the slope angle of the working surface of the vibrating screen on the efficiency of the screening. Modern problems of science and education. № 4. 45.
Falko O. L. (2014). Separation of bulk materials into three fractions with their vibrational displacement. 5. 15-18.
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