Evaluating the Efficiency of Coal Loading ‎Process by Simulating the Process of Loading onto the Face Conveyor with a Shearer with an ‎Additional Share

Document Type : Original Article

Authors

1 Ha Noi University of Mining and Geology, Vietnam

2 Saint-Petersburg Mining University, Saint-Petersburg, Russia

Abstract

This paper analyses the possibility of increasing the efficiency of loading the destroyed rock mass into the face scraper conveyor by the lagging screw actuator of the shearer in the process of coal mining in the complex mechanized treatment faces of coal mines. It was taken into account that the most significant influence on the loading efficiency of coal is exerted by the dimensions of the cross-sectional area of the loading window, the distance between the screw and conveyor and the height of the bottom of the conveyor. Non-traditional technical solutions are proposed that reduce the negative impact of the gap between the screw and the conveyor on the efficiency of coal loading by the lagging screw actuator of shearers and increase the degree of filling of the conveyor groove. Technical solutions contribute to the formation of a rational section of the cargo flow in the trough of the downhole conveyor and, therefore, increase its productivity. The results of modeling the process of loading coal onto the face conveyor by an auger actuator with an additional loading device are presented. Evaluation of the effectiveness of the proposed constructive technical solutions for the interface unit in the loading area confirmed an increase of 2.94 times the maximum capacity of the screw executive body for loading coal onto the face conveyor while 2.7 times less specific energy consumption during loading.

Keywords

References

  1. Nguyen, K. L., Gabov, V. V. and Zadkov, D. A., “Improvement of drum shearer coal loading performance”, Eurasian mining, No. 2, (2018), 22-25, DOI: 10.17580 / em.2018.02.06.
  2. Zvonarev, I. E. and Shishlyannikov, D. I., “Efficiency improvement of loading of potassium ore by means of "Ural-20R" heading-and-winning machine”, IOP Conference Series: Earth and Environmental Science, Vol. 87, (2017), 022025, DOI:10.1088/1755-1315/87/2/022025.
  3. Voronova, E. Y. and Khazanovich, G. Sh., “General methodology for the optimization of the parameters of aggregated tunneling systems”, IOP Conference Series: Materials Science and Engineering, Vol. 560, (2019), 012048, DOI: 10.1088 / 1757-899X / 560/1/012048.
  4. Ayhan, M. and Eyyuboglu, E. M., “Comparison of globoid and cylindrical shearer drums’ loading performance”, The Journal of The South African Institute of Mining and Metallurgy, Vol. 106, (2006), 51-56.
  5. Zagrivnyi, E. A. and Basin, G. G. “External dynamics formation in mining machines”, Journal of Mining Institute Vol. 217, (2016), 140-149.
  6. Gabov, V. V., Zadkov, D. A. and Nguyen, K. L., “Features of Elementary Burst Formation During Cutting Coals and Isotropic Materials with Reference Cutting Tool of Mining Machines”, Journal of Mining Institute, Vol. 236, (2019), 153-161, DOI: 10.31897 / PMI.2019.2.153.
  7. Nguyen, K. L., Gabov, V. V. and Lykov, Y.V., “Substantiation of the parameters of coal unloading process onto the conveyor using shearer drums”, IOP Conference Series: Earth and Environmental Science, Vol. 194, 042019, 2018, 1-5, DOI:10.1088/1755-1315/194/4/042019.
  8. Gao, K., Changlong, D., Jianghui, D. and Qingliang, Z., “Influence of the drum position parameters and the ranging arm thickness on the coal loading performance”, Minerals, Vol 5, 2015, 723-36, DOI:10.3390/min5040520.
  9. Piotr, G., “Modeling and simulation of coal loading by cutting drum in flat seams”, Archives of Mining Sciences, Vol. 61, No. 2, (2016), 365–379, DOI: 10.1515/amsc-2016-0027.
  10. Sriradha S., Vladislav K. and Tadeusz K., “Advance design of lacing and breakout patterns for shearer drums”, Transactions of the Institution of Mining and Metallurgy, Vol 114, (2005), 118-124, DOI: 10.1179/037178405X44548.
  11. Zakharov, V. N., Linnik, V. Yu., Linnik, Yu. N. and Zhabin, A. B., “Mathematical apparatus to calculate shear drum parameters for specific mining conditions”, Gornyi Zhurnal, No. 11, 2019, 73-76, DOI: 10.17580/gzh.2019.11.13. 
  12. Liu, S., Du, C., Zhang, J. and Jiang, H., “Parameters analysis of shearer drum loading performance”, Mining Science and Technology (China), Vol. 21, (2011), 621-24. DOI: 10.1016/j.mstc.2011.10.005
  13. Hoseinie, S. H., Ghodrati, B. and Kumar, U., “Assessment of Reliability-Related Measures for Drum Shearer Machine, a Case Study”, International Symposium High Performance Mining, (2014), 55-62.
  14. Gao, K., Liping, W., Changlong, D., Jiannan, L. and Jianghui, D., “Research on the effect of dip angle in mining direction on drum loading performance: a discrete element method”, The International Journal of Advanced Manufacturing Technology, Vol. 89, (2016), 23-34, DOI: 10.1007/s00170-016-9251-7.
  15. Jonathon, C. R., David, C. R., Mark, T. D. and David, W. H., “Longwall automation: Delivering enabling technology to achieve safer and more productive underground mining”, International Journal of Mining Science and Technology, Vol. 25, (2015), 865-876, https://doi.org/10.1016/ j.ijmst.2015.09.001.
  16. Seyed H. H., Mohammad A., Mohammad A. K., Behzad G. and Uday K., “Reliability analysis of drum shearer machine at mechanized longwall mines”, Journal of Quality in Maintenance Engineering, Vol. 18, (2012), 98-119, DOI: 10.1108/13552511211226210
  17. Nguyen, V. T., Rogachev, M. K. and Aleksandrov, A. N., “A new approach to improving efficiency of gas-lift wells in the conditions of the formation of organic wax deposits in the Dragon field”, Journal of Petroleum Exploration and Production Technology, Vol. 10, (2020), 3663–3672. DOI: 10.1007/s13202-020-00976-4.
International Journal of Engineering
Volume 34, Issue 7
TRANSACTIONS A: Basics
July 2021
Pages 1804-1809

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