Sergeev V.V., Gerasimenko T.E., Evdokimov S.I., Gerasimenko N.P. Analysis of Technical Solutions for Increasing Efficiency of Ventilation of Deep Open Pits

DOI: 10.18503/1995-2732-2022-20-4-15-25

Abstract

Problem Statement. An increase in efficiency of open pit ventilation and the elimination of stagnant zones are of particular relevance with an increase in depth of open pit mining. It is possible to increase efficiency of ventilation by intensifying air flows in the pit space and implementing technical solutions aimed at involving natural air flows into local flows created by the operation of ventilation units. Objective. The research is aimed at developing a technical solution that improves efficiency and simplifies the ventilation of open pits, reduces energy and material costs, and studying efficiency of the developed method using a computer simulation. Originality. Compared to the known similar solutions, the ventilation units in the developed method are placed at the bottom of the open pit, creating a directed vertical flow, and along the sides of the pit, creating a spiral air flow, whose speed is controlled by changing the air flow rate and pressure by the ventilation units. Findings. When implementing the developed method, all conditions are created to maintain the movement of air masses throughout the depth of the open pit, their functioning and control, and, consequently, efficient ventilation depending on the place and depth of mining. Practical Relevance. The computer simulation of air flow velocities contributes to evaluating efficiency of the open pit ventilation with a various number and power of ventilation units, and to selecting the optimal modes for actual conditions of open pit mining.

Keywords

open pit, ventilation methods, ventilation intensification, ventilation efficiency, optimal ventilation conditions

For citation

Sergeev V.V., Gerasimenko T.E., Evdokimov S.I., Gerasimenko N.P. Analysis of Technical Solutions for Increasing Efficiency of Ventilation of Deep Open Pits. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Univer-siteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2022, vol. 20, no. 4, pp. 15-25. https://doi.org/10.18503/1995-2732-2022-20-4-15-25

Vyacheslav V. Sergeev – DrSc (Eng.), Professor of the Mining Department, North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia.

Tatiana E. Gerasimenko – PhD (Eng.), Head of the Intellectual Property Department, North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0001-7048-4379

Sergey I. Evdokimov – PhD (Eng.), Associate Professor of the Minerals Beneficiation Department, North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-2960-4786

Natalia P. Gerasimenko – student, Kuban State University, Krasnodar, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it..

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Details: Published: 20 December 2022; Last Updated: 21 December 2022; Hits: 1293