Reducing external air leakage at the main ventilation unit of the mine
/ 0
- Details
- Category: Content №1 2023
- Last Updated on 25 February 2023
- Published on 30 November -0001
- Hits: 3244
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.
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.
Newer news items:
- Legal regulation of economic activity during the period of armed aggression against Ukraine - 25/02/2023 01:06
- Factor analysis of assessment of the economic potential of mining companies - 25/02/2023 01:06
- Forecasting the innovation of Ukraine’s economic development in a global dimension - 25/02/2023 01:06
- The competitive strategy profile of Ukrainian inland water transport: economic justification - 25/02/2023 01:06
- Tools for assessing obstacles in implementation of energy saving measures by enterprises - 25/02/2023 01:06
- Digital technologies as a reason and tool for dynamic transformation of territory marketing - 25/02/2023 01:06
- Data collection system with signal optimal-routine for the mining and environmental monitoring in Vietnam - 25/02/2023 01:06
- Analysis of numeric results for analogue of Galin’s problem in curvilinear coordinates - 25/02/2023 01:06
- Research on the impact of cognitive biases of workers on the subjective assessment of occupational risk - 25/02/2023 01:06
- Criminological characterization of environmental crimes in the field of subsurface resources protection - 25/02/2023 01:06
Older news items:
- Minimization of power fluctuations of wind power plants when constructed in exclusion zones of enterprises - 25/02/2023 01:06
- Mathematical model of the closed-loop system of excavator bucket positioning - 25/02/2023 01:06
- Increasing the energy efficiency of modes of distribution networks with photovoltaic stations - 25/02/2023 01:06
- Load of a semi-car having the dismountable roof of composites - 25/02/2023 01:06
- Analysis of surface settlements induced by tunnel excavation with EPB-TBM - 25/02/2023 01:06
- Features of modernization of a truck with a hybrid power transmission - 25/02/2023 01:05
- Geometry variation of ballasted railway tracks due to weather conditions - 25/02/2023 01:05
- Graphitizing modification of the axial zone of cast iron rolling rolls in the liquidus-solidus temperature range - 25/02/2023 01:05
- Reverse flotation process in double stage on the Algerian phosphate ore treatment - 25/02/2023 01:05
- Modeling of drilling water supply wells with airlift reverse flush agent circulation - 25/02/2023 01:05
