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ArticleName Season-oriented mine ventilation modes analysis
DOI 10.17580/em.2021.02.17
ArticleAuthor Nikolaev A. V., Lyalkina A. V., Kychkin A. V., Vöth S.

Perm National Research Polytechnic University, Perm, Russia:

Nikolaev A. V., Doctor of Technical Sciences, Associate Professor,
Lyalkina G. B., Doctor of Physical and Mathematical Sciences, Professor

National Research University Higher School of Economics, Perm, Russia:
Kychkin A. V., Candidate of Technical Sciences, Associate Professor


Technische Hochschule Georg Agricola, Bochum, Germany:
Vöth S., Doctor of Technical Sciences, Professor


The paper presents the results of the data analysis conducted at Bereznyaki Mine-2 of Uralkali in summer and winter (during the air pre-treatment period). The findings show that when mine air heaters are operating thermal drop of ventilation pressure appears in air supply shafts. It causes “airlocks” in the shafts – a phenomenon that nearly stops the airflow in one of the shafts while increasing dramatically the airflow in the other (others) air intake shafts. As a result, mine air heaters in the shafts may stop running which provokes freezing of the mine shaft shoring. The analysis of mine ventilation modes performed in summer and winter determined the factors affecting the occurrence of “airlocks” in the air supply shafts during air pre-treatment.

The reported study was supported by the Government of Perm Krai, research project of the International Research Group «Development of a digital model for forecasting and pricedependent demand response for electricity consumed by underground mining enterprises» (contract No. 26/506).

keywords Air preparation, mine air-heating installation, main ventilation instalation, resource conservation, automation system, natural draft

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