Creation of the Information System Based on Experimental Data for Control of the MMF Operating Modes to Improve the Efficiency of Ventilation in Mines

Lyalkina, G. B.; Nikolaev, A.V.; Makarychev, N. S.

doi:10.1088/1742-6596/1059/1/012013

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…Two experiments were held at the same mine (Bereznyaki Mine 2 of Uralkali) using the same MMF operating modes but at different times of the year: in summer (in June, the outdoor temperature is +21.8 °C) and in winter when air heaters are running (in February, the outdoor temperature is -2.1 °C). The results of the experiments are presented in [5].…”

Section: Body Of the Papermentioning

confidence: 99%

“…The operation mode of the mine airing system and the stability of the ventilation process determine the safety of the underground mining workings [1][2][3][4]. Fresh air is supplied to the mine using the main mine fan (MMF), which operation is influenced by a large number of disturbing factors [5]. The volume of the incoming airflow is constantly changing, the capacity of the MMF is exceeded by 5-15% [6,7].…”

Section: Introductionmentioning

confidence: 99%

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Season-oriented mine ventilation modes analysis

Nikolaev¹,

Lyalkina²,

Kychkin³

et al. 2021

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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.

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Section: Body Of the Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Season-oriented mine ventilation modes analysis

Nikolaev¹,

Lyalkina²,

Kychkin³

et al. 2021

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Testing a new type of mine brattice and its applications in production units

2020

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The article describes the ventilation schemes of the potash mine production units, in which, due to the action of natural draughts (thermal depressions), as well as the use of portable mine brattice (MB), safety and energy efficiency of mining operations is increased. The design and test results of a new type of mine brattice capable of quickly and reliably isolating a mine site from the passage of "excess" air (normal ventilation mode) and flue gases (emergency ventilation mode) are given.

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Test Results for Ventilation Units

Mozgova

Shchennikova

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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The article presents the findings of the tests conducted for the forced air heating unit of a supply ventilation system. The supply air system is designed to feed clean air into the industrial facility of the oil-gas field of the Yamalo-Nenets Autonomous District. The tests were performed in five modes at the ambient air temperatures of -5, -10, -15, -20, -25 °C. The mode throughout the tests was steady, i.e. the temperatures of water and air remained unchanged within 30 minutes before the tests. Since the capacity of the heater unit was proved to be 24 - 41.5% according to the test results, recommendations were made to improve the capacity. With the said measures having been taken, control measurements of test parameters were carried out, the actual U-value was calculated and the capacity of the heater unit was determined. The performed work is relevant in view of theoretical and practical significance for engineers and employees of industrial enterprises servicing the ventilation systems.

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Creation of the Information System Based on Experimental Data for Control of the MMF Operating Modes to Improve the Efficiency of Ventilation in Mines

Cited by 5 publications

References 8 publications

Season-oriented mine ventilation modes analysis

Season-oriented mine ventilation modes analysis

Testing a new type of mine brattice and its applications in production units

Test Results for Ventilation Units

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