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| Resistance measurement analysis and reliability evaluation research of a lead-zinc mine ventilation system |
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Received:October 20, 2021
Revised:November 01, 2021
Accepted:November 03, 2021
Published Online:June 10, 2022
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| DOI： |
| KeyWord:ultra-deep mine;ventilation resistance; reliability; network flow theory; contact matrix method; reliability evaluation |
| Author | Institution |
| WANG Xiaodong |
昆明理工大学 国土资源工程学院 |
| CHEN Shupeng |
昆明理工大学 国土资源工程学院 |
| JIANG Mengjiao |
昆明理工大学 国土资源工程学院 |
| TONG Xuelin |
昆明理工大学 国土资源工程学院 |
| FU Haonan |
昆明理工大学 国土资源工程学院 |
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| Abstract: |
| In order to solve the ventilation difficulties caused by the combined operation of the new and old ventilation systems in the ultra-deep mine, we explored the changes in the ventilation resistance and the resistance distribution of the whole mine after the newly-built return air shaft was put into use. According to the production process, the research object dynamically studies the resistance influencing factors and the changing law, evaluates the reliability of the ventilation network, and finds the common problems existing in the mine ventilation system. The research results show that the mine is a difficult period of ventilation in summer. After the newly built return air shaft is put into use, the ventilation resistance of the whole mine will be reduced by 354.24 Pa. The three-stage resistance distribution of "intake, use and return" is more reasonable, and the reliability of the ventilation network is 0.881,the overall network reliability is high. Furthermore, after the new return air shaft is put into use, under the premise of meeting the production wind of the deep ventilation system, the ventilation resistance is reduced, the energy consumption is reduced, and the optimization goal is realized. This research method can provide more scientific and reasonable optimization and transformation ideas for mining enterprises. |
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