Methodical Fundamentals of Air Consumption Calculation for Mine Working Ventilation at the Operation of Machines and Mechanisms with Internal Combustion Engines


Annotation:

Improvement of the underground mining activity efficiency anticipates the use of self-propelled equipment with internal combustion engines, including with diesel drive at all the stages of tunneling and mining operations. One of the main conditions that guarantee the possibility of using equipment with internal combustion engines is that the maximum permissible concentrations of gaseous substances formed as a result of the operation of internal combustion engines are not exceeded in the mine air. Organization of rational ventilation mode along with the use of the modern converters of gaseous impurities should be considered the most efficient solution to this problem. It is based on the supply of the required amount of fresh air to the places of consumption and on its distribution over the workings.

The norms of the specific amount of air for diluting gases are determined by the rated power of the machine engines, the environmental standard that complies with Tier 3 standard, and the availability of the efficient catalytic converters. They ensure reduction of the emissions of pollutants (CO, NO2) to the values that guarantee that their maximum permissible concentrations are not exceeded, and the minimum oxygen content in the mine air is maintained.

To determine the specific air flow rate, the correlation dependences can be used based on statistical processing of data from in-situ measurements of concentrations of pollutants at the outlet of the catalytic converter during equipment operation.

When two or more self-propelled diesel engines are being developed simultaneously, the concentration of pollutants in the mine air and, consequently, the required air consumption will depend on the different schedules of the machines and their speed of movement.

References:
  1. Safety rules for mining and processing of solid minerals: Federal rules and regulations in the field of industrial safety. Ser. 3. Iss. 78. Moscow: ZAO NTTs PB, 2020, 302 p. (In Russ.).
  2. Instruction for the use of self-propelled (non-rail) equipment in the underground mines. Available at: https://files.stroyinf.ru/Data2/1/4293787/4293787384.pdf (accessed: (accessed: January 8, 2019). (In Russ.).
  3. Okasov D.T. The amount of ventilation air for reducing the concentrations of toxic components of engines exhaust from the internal combustion engines to maximum allowable concentration in the mine air. Vestnik VKGTU. Ser. Geologiya, gornoe delo, metallurgiya = East Kazakhstan state technical university. Series. Geology, mining, metallurgy. 2007. № 2. pp. 21–27. (In Russ.).
  4. Stinnette J.D., De Souza E. Establishing total airflow requirements for underground metal/ nonmetal mines with tier IV diesel equipment. Available at: https://www.mvsengineering.com/files/Publications/wmc2013Paper694.pdf (accessed: January 8, 2019).
  5. Fomichev V.I. Ventilation of the tunnels and underground structures. Leningrad: Stroyizdat, 1991. 200 p. (In Russ.).
  6. Kirin B.F., Dikolenko E.Ya., Ushakov K.Z. Aerology of the underground structures (during construction). Lipetsk: Lipetskoe izdatelstvo, 2000. 456 p. (In Russ.).
  7. Levin L.Yu., Zaytsev A.V., Grishin E.L., Semin M.A. Calculation of Air Quantity on Oxygen Content for Ventilation of the Working Areas when Using Machines with Internal-Combustion Engine. Bezopasnost truda v promyshlennosti = Occupational Safety in Industry. 2015. № 8. pp. 43–46. (In Russ.).
  8. Skornyakov Yu.G. Development systems and complexes of self-propelled machines for the underground ore mining. Moscow: Nedra, 1978. 232 p. (In Russ.).
  9. Pukhov Yu.S. Mine transport. Moscow: Nedra, 1991. 238 p. (In Russ.).
  10. Mostepanov Yu.B., Vedenin A.N. Ventilation during construction of the underground structures. Leningrad: Stroyizdat, 1988. 135 p. (In Russ.).
  11. Kobylkin S.S., Mikheev A.E., Udalov R.A., Kobylkin A.S. Calculation of the amount of air for tunnel faces, taking into account the dynamics of the work of machines in the mine workings. Gornaya tekhnika = Mining Engineering. 2014. № 2 (14). pp. 52–55. (In Russ.).
  12. Gendler S.G. Air quality management during operation of the underground transport facilities. Gornyy informatsionno-analiticheskiy byulleten = Mining informational and analytical bulletin. 2000. № 7. pp. 99–105. (In Russ.).
DOI: 10.24000/0409-2961-2020-4-45-51
Year: 2020
Issue num: April
Keywords : ventilation pollution of mine air self-propelled mining and transport equipment diesel engine environmental standard pollutants discharge exhaust gases converter air discharge intensity
Authors:
  • Gendler S.G.
    Gendler S.G.
    Dr. Sci. (Eng.), Prof. Saint-Petersburg Mining University, Saint-Petersburg, Russia
  • Gridina E.B.
    Gridina E.B.
    Cand. Sci. (Eng.), Assoc. Prof. Saint-Petersburg Mining University, Saint-Petersburg, Russia
  • Egorova N.A.
    Egorova N.A.
    Candidate, s175043@stud.spmi.ru Saint-Petersburg Mining University, Saint-Petersburg, Russia
  • Kozyrev S.A.
    Kozyrev S.A.
    Dr. Sci. (Eng.), Laboratory Head FRC KSC RAS, Apatity, Russia
  • Sogrin B.B.
    Sogrin B.B.
    Cand. Sci. (Eng.), Head of the Directorate OOO «Medvezhiy Ruchey», Norilsk, Russia