Rubble Sandstone Unloading and Screening Unit with Non-Volatile Auxiliary Equipment Drive

For the road industry, it is quite important to reduce costs and energy consumption, as well as energy recovery in process plants. To solve this problem at one of the stages of the industrial process, which is production of road metal, an important material for road construction, it is proposed to develop autonomous power unit based on recuperation of the kinetic energy of dump trucks, namely a unloading and screening unit of crushing and screening plant with non-volatile drive of auxiliary equipment.
A non-volatile unloading and screening unit separates the feedstock at the primary stage of production in a non-volatile operating mode, using recovery of the kinetic energy of trucks been unloaded. After loading rubble sandstone into the receiving hopper, the unit activates the process of material segregation into coarse and fine fractions. The respective fractions are fed to the appropriate feeders for subsequent technological processing. The advantage of the unit is the autonomy of the vibrator and feeders’ drives, which helps to raise the efficiency of the process of unloading and separation of the rubble sandstone and reduce energy costs for production of the finished product.
The evaluation of the functional capabilities of the non-volatile hydraulic drive of the unloading and screening unit was carried out for hydraulic motors of the screening and conveying equipment. The apron feeder of KM PP-2–10–60B type providing a continuous and uniform supply of feedstock was assumed as the basic equipment, and the volume of working fluid in the hydraulic accumulator supplied by hydraulic jacks was calculated. The results showed that two hydraulic jacks with the specified parameters can provide the required flow and allowed determining the amount of energy stored in the accumulator during feedstock loading. The calculated power of the hydraulic motor allows its use in the feeder. The economic efficiency of the installation with an autonomous drive is estimated considering the mode of operation, the number of shifts and the tariff for electricity.

1. Stepanov, V. M., Kuzmina, S. V. Power recovery device [Ustroistvo rekuperatsii elektroenergii]. Izvestiya TulGU. Tekhnicheskie nauki, Iss. in 5 parts. Tula, TulGUpubl., 2010, pp. 79–80. [Electronic resource]: https://tidings.tsu.tula. ru/tidings/pdf/web/file/tsu_izv_technical_sciences_2010_03_part_5.pdf [full tet of the issue]. Last accessed 28.05.2023.

2. Lyashenko, Yu. M., Ryzhikov, V. A., Revyakina, E. A., Lyashenko, A. Yu., Zubrilova, A. M. Rationale justification of a design of system of recuperative braking of the vehicle. Gruzovik, 2017, Iss. 2, pp. 3–6. [Electronic resource]: https://elibrary.ru/xyeooz. EDN: XYEOOZ. Last accessed 28.05.2023.

3. Lyashenko, Yu.M., Lyashenko, A. Yu. Statistical studies of equipment for quarrying extraction of non-metallic materials in the conditions of Rostov region [Statisticheskie issledovaniya oborudovaniya dlya proizvodstva karernykh rabot pri dobyche nerudnykh materialov v usloviyakh Rostovskogo regiona]. Bulletin of Higher Educational Institutions. North Caucasus region. Technical Sciences, 2011, Iss. 4, pp. 117–120. [Electronic resource]: https://elibrary.ru/item.asp?id = 16754079. EDN: OCQJKN. Last accessed 28.05.2023.

4. Blekhman, I. I., Khaiman, V. Ya. On the theory of vibrational separation of granular mixtures [O teorii vibratsionnogo razdeleniya sypuchikh smesei]. Izv. AN SSR. Mekhanika, 1965, Iss. 5, pp. 22–30. [Electronic resource]: https://elibrary.ru/item.asp?id = 25494982. EDN: TIDAGB [metadata].

5. Romashev, O. A., Kuskov, V. B., Lvov, V. V. Intensification of separation of minerals using vibrational segregation [Intensifikatsiya separatsii poleznykh iskopaemykh s ispolzovaniem vibratsionnoi segregatsii]. Zapiski Gornogo instituta. St.Petersburg, 2013, Vol. 202, pp. 118–121. [Electronic resource]: https://pmi.spmi.ru/index.php/pmi/article/view/5669/3553. Last accessed 28.05.2023.

6. Alyoshina, A. P., Ogurtsov, V. A., Gritsenko, M. A., Ogurtsov, A. V. Computational and experimental study of the segregation mechanism of migration of an ensemble of particles in a layer of bulk material during vibroscreening [Raschetno-eksperimentalnoe issledovanie segregatsionnogo mekhanizma migratsii ansamblya chastits v sloe sypuchego materiala pri vibrogrokhochenii]. Vestnik IGEU, 2015, Iss.1, pp. 50–54. [Electronic resource]: https://www.elibrary.ru/item.asp?id=22952930. EDN: TIHGJZ. Last accessed 28.05.2023.

7. Baldaeva, T. M. Efficiency of pre-screening small classes in vibration classification [Effektivnost predvaritelnogo otseva melkikh klassov pri vibratsionnoi klassifikatsii]. Obogashchenie rud, 2017, Iss. 5, pp. 3–6. DOI: 10.17580/or.2017.05.01 [metadata].

8. Vibratory machines in construction and production of building materials: Handbook [Vibratsionnie mashiny v stroitelstve i proizvodstve stroitelnykh materialov: Spravochnik]. Team of authors, ed. by V. A. Bauman. Mashinostroenie, 1970, 548 p.

9. Lyashenko, Y. M., Voronova, E. Y., Lyashenko, A. Y. Methodical Basics for Calculation of Receiving and Segregation Hopper for Sand Rubble. Lecture Notes in Mechanical Engineering, Proceedings of the 8th International Conference on Industrial Engineering, 2022, pp. 788–798. DOI: https://doi. org/10.1007/978-3-031-14125-6_77 [limited access].

10. Leeuwner, M. J., Eksteen, J. J. Computational fluid dynamic modeling of two phase flow in hydrocyclone. The Journal of the Southern African Institute of Mining and Metallurgy, 2008, Vol. 108, No. 4, pp. 231–236. [Electronic resource]: https://www.researchgate.net/profile/JacobusEksteen‑2/publication/290185402_Computational_fluid_ dynamic_modelling_of_two_phase_flow_in_a_ hydrocyclone/links/58537f1c08ae95fd8e1d7e78/ Computational-fluid-dynamic-modellingof-two-phase-flowin-a-hydrocyclone.pdf. Last accessed 28.05.2023.

11. Laptev, Yu. V. Mining technical factors that determine the regularities of the process of segregation of rocks during dumping [Gornotekhnicheskie faktory, opredelyayushchie zakonomernosti protsessa segregatsii gornykh porod pri otsypke otvalov]. Marksheideriya i nedropolzovanie, 2007, Iss. 1, pp. 33–41.

12. Laptev, Yu. V. Study of the dynamics of rock mass unloading from the body of a dump truck [Issledovanie dinamiki vygruzki gornoi massy iz kuzova avtosamosvala]. Ural Mining Forum: Mining. Equipment. Technologies: Collection of reports/ KOSK «Russia». Exhibition Centre; IGD UB RAS. Yekaterinburg, UB RAS, 2006, pp. 133–136.

13. Ogurtsov, V. A. Modelling the movement of particles over the surface of a vibrating screen [Modelirovanie dvizheniya chastits nad poverkhnostyu sita vibrogrokhota]. Stroitelnie materialy, 2008, Iss. 8, pp. 72–76. [Electronic resource]: https://elibrary.ru/item.asp?id = 11762430. EDN: JXKILN [metadata].

14. Karpenko, M. M., Pelevin, L. E., Bogdevičius, M. Prospect of using a hydraulic energy saving drive. Technical technological problems of service, 2017, Iss. 3 (41), pp. 7–12. [Electronic resource]: https://elibrary.ru/item.asp?id=32312826. EDN: YMKEIZ. Last accessed 28.05.2023.

15. Xiaocong Li, Silu Chen, Chek Sing Teo, Kok Kiong Tan, Tong Heng Lee. Data-Driven Modeling of Control Valve Stiction Using Revised Binary-Tree Structure. Industrial & Engineering Chemistry Research, 2015, Vol. 54 (1), pp. 330–337. DOI: 10.1021/ie5031369.