Журналы →  Eurasian mining →  2018 →  №2 →  Назад

EQUIPMENT AND MATERIALS
Название Improvement of drum shearer coal loading performance
DOI 10.17580/em.2018.02.06
Автор Nguyen Khac Linh, Gabov V. V., Zadkov D. A.
Информация об авторе

Saint-Petersburg Mining University, Saint-Petersburg, Russia:

Nguyen Khac Linh, Post-Graduate Student
Gabov V. V., Professor, Doctor of Engineering Sciences
Zadkov D. A., Associate Professor, Candidate of Engineering Sciences, dzadkov@yandex.ru

Реферат

The article discusses improvement of broken coal loading on armored face conveyor by tailgate drum of a shearer in the course of fully mechanized coal mining. The scope of the analysis covers coal flow in the zone of coal–pick interaction, axial displacement between vanes, passive removal from the drum to the conveyor as well as coal flow formation on the conveyor. The features and constraints of coal flow in each zone are discussed. It is shown that the highest influence on the coal loading efficiency is exerted by the drum and conveyor spacing, discharge window size and the face side height of the conveyor. The discharge window coefficient is introduced. It is pointed at the required reduction in the coal flow resistance by increasing the cross-section area of the discharge window and the volume of coal loading zone on the conveyor. The discharge window cross-section area is increased by implementing the proposed integrated engineering solutions, in particular, conical drum web, ranging arm frame structure and decreased depth of cross-section of the supporting beam. The accepted new design enables increasing maximum loading capacity of the shearer tailgate drum, decreasing dust formation and coal fineness in the process of coal removal from cutting zone and loading on conveyor, as well as reducing energy consumption.

Ключевые слова Coal, longwall face, shearer, drum, loading, armored face conveyor, efficiency
Библиографический список

1. Zagrivny E. A., Basin G. G. External dynamics formation in mining machines. Zapiski Gornogo instituta. 2016. Vol. 217. pp. 140–149.
2. Solod V. I., Getopanov V. N., Rachek V. M. Design and Construction of Mining Machines and Systems. Moscow : Nedra. 1982. 350 p.
3. Peng S. S. Longwall Mining. U.S.: 2nd edition, October 2006. 621 p.
4. Wang F., Tu S., Bai Q. Practice and prospects of fully mechanized mining technology for thin coal seams in China. Journal of the South African Institute of Mining and Metallurgy. 2012. Vol. 112, No. 2. pp. 161–170.
5. Skryabin R. M., Timofeev N. G. Development of an innovative shneko-heat-sink boring shell for drilling of shurfowells in the conditions of a kriolitozona. Eurasian Mining. 2016. No. 1. pp. 33–36. DOI: 10.17580/em.2016.01.05.
6. Boiko N. G. Coal Loading by Shearers. Donetsk : DonNTU, 2002. 157 p.
7. Liu Songyong, Du Changlong, Zhang Jiajia, Jiang Hao. Parameters analysis of shearer drum loading performance. Mining Science and Technology. 2011. pp. 621–624.
8. Hoseinie S. H., Ghodrati B., Kumar U. Assessment of reliability-related measures for drum shearer machine, a case study. International Symposium High Performance Mining. 2014. pp. 55–62.
9. Gospodarczyk P. Modeling and simulation of coal loading by cutting drum in flat seams. Archives of Mining Sciences. 2016. Vol. 61, No. 2. pp. 365–379.
10. Safokhin M. S., Katanov B. A., Tarasenko V. E., Aleinikov A. A. Drilling Machines and Tools for Coal Mines. Moscow : Nedra. 1972. 216 p.
11. Zhabin A. B., Fomichev A. D., Naumov Ju. N., Solovyh D. Ja. Results of studies of shaft boring machine operation in vertical shaft construction at Upper Kama Potash Deposit. Eurasian Mining. 2016. No. 1. pp. 29–32. DOI: 10.17580/em.2016.01.04.
12. Verner V. I. Analysis and validation of rational parameters for loading and transporting drum shearers. Dr. Eng. Dissertation. Kemerovo, 1999. 319 p.
13. Belikov K. N. Experimental research of drum shearer loading performance. PNIUI: collection of proceedings. 1963. No. 16. pp. 135–146.

14. Gao K., Du Ch., Dong J., Zeng Q. Influence of the drum position parameters and the ranging arm thickness on the coal loading performance. Minerals. 2015. Vol. 5. pp. 723–736.
15. Gao K., Wang L., Du Ch., Li J., Dong J. Research on the effect of dip angle in mining direction on drum loading performance: a discrete element method. Int. J. Adv. Manuf. Technol. 2016. Vol. 89. pp. 2323–2334.
16. Gabov V. V., Nguyen K. L., Nguyen V. X., Le T. B., Zadkov D. A. The rationale of geometric and modal parameters of cutter drums ensuring the efficiency of coal loading onto a downhole conveyor. Ugol. 2018. 2. pp. 36–39.
17. Nguyen K. L., Gabov V. V., Zadkov D. A., Le T. B. Justification of process of loading coal onto face conveyors by auger heads of shearer-loader machines. IOP Conference Series: Materials Science and Engineering Volume. 2018. 327. 042132. Vol. 327. DOI: 10.1088/1757-899X/327/4/042132.
18. Nguyen K. L., Gabov V. V., Zadkov D. A. Shearer drum. Patent RU 175 449 U1. Published: 05.12.2017. Byulleten No. 34.

Language of full-text английский
Полный текст статьи Получить
Назад