Justification of safe operating conditions for mining transportation machines powered by internal combustion engines using air pollutant emission criterion

Wide application of mining transportation equipment powered by internal combustion engines (ICE) is conditioned by intensification of all mineral mining processes. Being evidently advantageous, operation of this equipment induces some adversities which impair safety of personnel engaged in maintenance or operating in vicinity of ICE-powered machines. Such adversities are, first of all, air pollutant emission of exhaust gases in concentrations greatly higher than the maximum allowable values. Normalization of chemical parameters of mine air is possible by feeding required air quantity in roadways where ICE-powered machines operate. The required air quantity depends on many factors: ecological standard, lifetime, engine capacity and operating conditions of ICE machines, their design parameters, travel velocity in roadways, etc. This article discusses determination of air quantity to be fed in a roadway to dilute toxic substances in exhaust gases down to values which ensure carbon oxide and nitric oxide (in equivalence of nitrogen dioxide) concentrations as per the Federal Safety Norms and Regulations. Valuation of air pollutant emission on a full scale used a set of experiments including measurement of exhaust flow rate, temperature and concentrations of carbon oxide and nitric oxides. The resultant values were used to calculate the weight characteristics of air pollutant emissions and to determine the required air quantity to dilute them down to the allowable concentrations.

Keywords: mine air, diesel-powered dump trucks, exhaust gases, thermodynamic parameters, pollutant concentration, full-scale measurements, catalytic neutralizer.
For citation:

Seregin A. S., Fazylov I. R., Prokhorova E. A. Justification of safe operating conditions for mining transportation machines powered by internal combustion engines using air pollutant emission criterion. MIAB. Mining Inf. Anal. Bull. 2022;(11):37-51. [In Russ]. DOI: 10.25018/0236_1493_2022_11_0_37.

Acknowledgements:

The study was supported under the state contract in the sphere of science for 2021, Grant No. FSRW-2020-0014

Issue number: 11
Year: 2022
Page number: 37-51
ISBN: 0236-1493
UDK: 622.41
DOI: 10.25018/0236_1493_2022_11_0_37
Article receipt date: 25.10.2021
Date of review receipt: 09.03.2022
Date of the editorial board′s decision on the article′s publishing: 10.10.2022
About authors:

A.S. Seregin1, Cand. Sci. (Eng.), Assistant Professor, e-mail: seregin_as@pers.spmi.ru, ORCID ID: 0000-0002-2897-8604,
I.R. Fazylov1, Graduate Student, e-mail: Fazylovir@mail.ru, ORCID ID: 0000-0001-7975-9471,
E.A. Prohorova1, Graduate Student, e-mail: prokhorovaea96@gmail.com, ORCID ID: 0000-0002-5018-1773,
1 Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia.

 

For contacts:

A.S. Seregin, e-mail: seregin_as@pers.spmi.ru.

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