Reducing external air leakage at the main ventilation unit of the mine

User Rating:  / 0
PoorBest 

Authors:


O.V.Stolbchenko*, orcid.org/0000-0003-2003-4382, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.A.Yurchenko, orcid.org/0000-0002-4998-2047, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

I.O.Luts, orcid.org/0000-0003-0333-5730, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

D.V.Saveliev, orcid.org/0000-0002-0738-3273б Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2023, (1): 122 - 128

https://doi.org/10.33271/nvngu/2023-1/122



Abstract:



Purpose.
To increase the efficiency of mine ventilation by reducing external leaks through the ventilation shaft construction. To achieve this goal, it is necessary to solve the following tasks:

- to analyse the existing methods for reducing external leaks through the ventilation shaft components;

- consider the possibility of using a counteracting fan to unload the main fan from external leaks;

- to establish the mutual influence of the main and counteracting fans during their joint operation;

- to develop a methodology for determining the operating mode of the auxiliary fan in which external leaks are stopped in full.


Methodology.
To accomplish the set tasks, the analysis of the existing methods for combating external leaks in the main fan of the mine was carried out; a mathematical model was developed for controlling the ventilation modes of the main and auxiliary fans during their joint operation. Based on the mathematical model, the degree of mutual influence of the fans on each other was studied, a technique was developed for determining their mode, in which the mine jet in full volume enters the main fan, and external leaks are stopped by the auxiliary fan.


Findings.
A mathematical model for controlling mine ventilation and stopping external leaks in the ventilation shaft elements has been developed using the methods for planning industrial experiments; the degree of mutual influence of the fans on each other has been established; a method has been developed for determining the mode of their joint operation, in which the main fan is not loaded with external leaks.


Originality.
The degree of mutual influence of the main and auxiliary fans during their joint operation has been determined. The conditions are studied under which the mine jet enters the main fan, while external leaks occur to the auxiliary fan.


Practical value.
The studies conducted make it possible to separate external leaks from the main stream coming out from the mine, which increases the safety of work and reduces the cost of ventilating the mine.

Key words: mine, main ventilation unit, external leaks, counteracting fan

References.


1. Bulat, A. F., Bunko, T. V., Yashchenko, I. A., Shyshov, M. V., Miroshnichenko, V. V., Alabiev, V. R., ..., & Dudnik, M. N. (2018). Improving the functioning of coal mines: ventilation, air conditioning, degassing, ecology. Dnepr: Zhurfond.

2. Griadushchaya, V. V., Steshenko, V. V., Bugaev, A. V., & Shevchenko, Ya. K. (2014). The main directions of improving the energy efficiency of mine fan installations of main ventilation. Ugol Ukrainy, (8), 42-46.

3. Zhukov, Yu. P., Boronin, V. F., Babyr, V. I., & Mironov, V. N. (2011). The fans of main airing and total mine ventilation: control and management. Ugol Ukrainy, (12), 23-27.

4. Bunko, T. V., Kokoulin, I. Ye., & Zhalilov, A. Sh. (2016). Minimizanion of the mutual affected zone of main fans of coal mine. Geо-Technical Mechanics, 128, 96-104. Retrieved from http://nbuv.gov.ua/UJRN/gtm_2016_128_12.

5. Bunko, T. V., Kokoulin, I. Ye., Zhalilov, A. Sh., & Bokij, A. B. (2014). Perfection of method calculation of reconfigurable mine ventilation systems with the use of parallel calculations. Geо-Technical Mechanics, 119, 87-99. Retrieved from http://www.geotm.dp.ua/attachments/article/3141/7.pdf.

6. Lapshyn, O. Ye., Lapshyn, O., & Lapshyna, D. O. (2017). Protection of the mine atmosphere. Kryvyi Rih: Kryvyi Rih National University.

7. Kolesnyk, V. Ye., & Pavlychenko, A. V. (2016). Development of the ways of reduction of ecological danger caused by dust emissions of coal mines. Geо-Technical Mechanics, 128, 167-177.

8. Bunko, T. V., Zhalilov, A. Sh., & Kokoulin, I. Ye. (2016). Research of operating peculiarities of the system main fans– ventilation network” in coal mines. Geо-Technical Mechanics, 130, 243-256.

9. Bulat, A. F., Sofiiskii, K. K., Bokiy, B. V., Sheiko, A. V., Agaev, R. A., & Tynina, S. V. (2016). Control of aerogasdynamic and geomechanical processes in coal mines. Mariupol: Skhidnyi vydavnychyi dim. ISВN 978-966-317-282-7.

10. Tynina, S. V., Riabtsev, O. V., & Shevchenko, A. E. (2016). Simulation of time-continuous processes on the example of fine suspensions, Ugol Ukrainy, (6-7), 52-56.

11. Biletskyi, V. S., & Smyrnov, V. O. (2013). Modelling of mineral enrichment processes. Donetsk: Skhidnyi vydavnychyi dim. ISВN 978-966-317-191-3.

 

Visitors

6202891
Today
This Month
All days
1121
29568
6202891

Guest Book

If you have questions, comments or suggestions, you can write them in our "Guest Book"

Registration data

ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

Contacts

D.Yavornytskyi ave.,19, pavilion 3, room 24-а, Dnipro, 49005
Tel.: +38 (056) 746 32 79.
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
You are here: Home About the journal EngCat Archive 2023 Content №1 2023 Reducing external air leakage at the main ventilation unit of the mine