Analysis of the effect of uneven filling of the hopper dispenser on the indicators of measuring the weight of rock mass

The article is devoted to the problem of increasing the efficiency of skip lifting rigs equipped with an automatic skip loading system. The aim of the study was to substantiate at the theoretical level the design of the installation of weighing sensors and the loading conditions of the metering hopper when designing the weighing system, taking into account the form of rock mass scattering when filling the dispenser. The process of functioning of a dosing device that provides automatic shut-off of the ore flow by the loading device during accumulation in the dispenser is considered. A three-dimensional model of the assembly of the dispenser body and rock mass has been developed. The simulation of the process of operation of bunkers and the calculation of the loading of reference points with various options of rock mass deposition using the CAE system of automated calculation and design of mechanical equipment and structures APM WinMashine. Methods of computational mathematics, numerical methods and programming, the finite element method, as well as the apparatus of mathematical statistics are used in modeling. As a result, the ratios of the reaction forces of the supports in the X, Y and Z directions are obtained, with different filling options of the dispenser. The necessity of increasing the coefficient of safety margin k to 3.5, in the case of asymmetry of rock mass pouring into the dispenser, is revealed. The criteria for optimal operation of the weighing system of the dispenser when adjusting the nominal scale of the sensors are determined. Recommendations on the design of the weighing system of the rock mass dispenser have been developed.

Zasypkina S. A., Karyakin A. L., Pashko A. D. Analysis of the effect of uneven filling of the hopper dispenser on the indicators of measuring the weight of rock mass. MIAB. Mining Inf. Anal. Bull. 2024;(1-1):115—127. [In Russ]. DOI: 10.25018/0236_1493_2024_011_0_115.

Zasypkina S. A., Сand. Sci. (Eng.), Associate Professor, UMMC Technical University, 624091, Sverdlovsk region, Verkhnyaya Pyshma, Uspensky Ave., 3, Russia, e-mail: s.zasipkina@tu-ugmk.com;
Karyakin A. L., Dr. Sci. (Eng.), Professor, Ural State Mining University, 620144, Russia, Yekaterinburg, st. Kuibyshev, 30, Russia, e-mail: karyakin.a@ursmu.ru;
Pashko A. D., Сand. Sci. (Eng.), Associate Professor, UMMC Technical University, 624091, Sverdlovsk region, Verkhnyaya Pyshma, Uspensky Ave., 3, Russia, e-mail: a.pashko@ tu-ugmk.com.

Zasypkina S. A., e-mail: s.zasipkina@tu-ugmk.com.

1. Zhuravlev A. G., Chendyrev M. A. Rationalization of geometric parameters receptions bunkers primary gyratory cone crusher for automotive transport. MIAB. Mining Inf. Anal. Bull. 2022, no. 5−1, pp. 158–170. [In Russ]. DOI: 10.25018/0236_1493_2022_51_0_158.

2. Rostami J., Chang S. H. A Closer Look at the Design of Cutterheads for Hard Rock Tunnel-Boring Machines. Engineering. 2017, vol. 3, no 6, pp. 892–904. DOI: 10.1016/j. eng.2017.12.009.

3. Han M. D., Cai Z. X., Qu C. Y., Jin L. S. Dynamic numerical simulation of cutterhead loads in TBM tunneling. Tunnelling and Underground Space Technology. 2017, vol. 70, pp. 286–298. DOI: 10.1016/j.tust.2017.08.028.

4. Leontiev A. A., Tauger V. M., Volkov E. B. The dynamics of a laden skip of the shaft pneumatic winding plant during acceleration. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal [News of the Higher Institutions. Mining Journal]. 2021, no. 1, pp. 115–121. [In Russ]. DOI: 10.21440/0536−10282021−1-115−121.

5. Tumac D., Balci C. Investigations into the cutting characteristics of CCS type disc cutters and the comparison between experimental, theoretical and empirical force estimations. Tunnelling and Underground Space Technology. 2015, vol. 45, pp. 84–98. DOI: 10.1016/j. tust.2014.09.009.

6. Zalazinskii A. G. Monitoring the technical condition of the main mine hoist. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal. Minerals and Mining Engineering. 2022, no. 1, pp. 84–91. [In Russ]. DOI: 10.21440/0536-1028-2022-1-84−91.

7. Volegzhanin I. A., Makarov V. N., Churkin D. I., Makarov N. V. Improvement of maintainability of mining equipment based on using female die of variable curvature. MIAB. Mining Inf. Anal. Bull. 2018, no. 4, pp. 172–178. [In Russ]. DOI: 10.25018/0236-1493-20184-0−172−178.

8. Gubanov S., Petsyk A., Komissarov A. Simulation of stresses and contact surfaces of disk rolling cutters with the rock when sinking in mixed soils. E3S Web of Conferences. 2020, vol. 177, 03008. DOI: 10.1051/e3sconf/202017703008.

9. Iudin A. V., Shestakov V. S., Saitov V. I., Abdulkarimov M. K. Determining the capacity of a bunker as a part of the handling system with combined transport. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal [News of the Higher Institutions. Mining Journal]. 2020, no. 4, pp. 99–112. [In Russ]. DOI: 10.21440/0536-1028-2020-4-99−112.

10. Nosenko A. S., Domnitsky A. A., Nosenko V. V., Zubov V. V., Kirsanov I. A. Theoretical study of bunker loaders with gravity feeding. MIAB. Mining Inf. Anal. Bull. 2022, no. 8, pp. 111–120. [In Russ]. DOI: 10.25018/0236_1493_2022_8_0_111.

11. Davydov S. Y., Zolkin A. P., Shvarev V. S., Zolkina L. A. Determination of the Dynamic Characteristics of a Charge in the Bucket of a Steeply Inclined Pivoted Bucket Belt Conveyor. Refractories and Industrial Ceramics. 2017, vol. 58 (1), pp. 10–15. DOI: 10.1007/s11148-017-0045-8.

12. Sładkowski A., Yudin A., Komissarov A., Lagunova Y., Akhmetova M., Stolpovskikh I. Calculation of parameters and design of the movable transfer station with vibrating screen feeder for the conveyor system of deep queries. International Journal of Engineering and Technology (UAE). 2018, vol. 7 (2), pp. 148–151. DOI: 10.14419/ijet.v7i2.23.11904.

13. Osipov P. A. The technical solutions overview for rock mass measuring in the electric single-bucket excavators dipper. MIAB. Mining Inf. Anal. Bull. 2021, no. 11−1, pp. 229–238. [In Russ]. DOI: 10.25018/0236_1493_2021_111_0_229.

14. Wauge D. Payload Estimation for Electric Mining Shovels: PhD Thesis. Mechanical Engineering, the University of Queensland, Australia, 2008, 246 p.

15. Slob J. J., McAree P. R., Steinbuch M. and Siegrist P. M. Payload Estimation for Electric Mining Shovels using a Load Sensing Pin: Traineeship report, Eindhoven University of Technology, 2007, 51 p.

16. Rakhutin M., Simba N., Khoroshavin S. Analysis of the dependence of the stressed state of the tracked track of a career excavator from an angle slope. E3S Web of Conferences. 2020, vol. 177, 03015. DOI: 10.1051/e3sconf/202017703015.

17. Velikanov V. S., Dyorina N. V., Suslov N. M., Luntsova A. I., Rabina E. I. Automation of design for dynamic loading at the designing stage of mining machinery Journal of Physics: Conference Series. 2019, vol. 1399 (3), 033010. DOI: 10.1088/1742−6596/1399/3/033010.

18. Latyshev O. G., Prishchepa D. V. Fractured rock mass modeling and stress–strain analysis using the finite element method information about authors. Gornyi Zhurnal. 2020, no. 5, pp. 11–14. [In Russ]. DOI: 10.17580/gzh.2020.05.01.

19. Davydenko A. N., Davidenko P. N., Karlov D. N., Zuev V. N. Development of a method for calculating of a multi-range strain gauge. International Research Journal. 2022, no. 10(124). [In Russ]. DOI: 10.23670/IRJ.2022.124.4.

20. Zhabko A. V., Zhabko N. M. Calculation of safety criteria and critical values of controlled indicators during safety monitoring filling hydrotechnical structures. MIAB. Mining Inf. Anal. Bull. 2022, no. 11−2, pp. 25–38. [In Russ]. DOI: 10.25018/0236_1493_2 022_112_0_25.