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| Ventilation Optimization of the Working Face of a Mine in Yunnan |
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Received:August 18, 2021
Revised:September 14, 2021
Accepted:September 18, 2021
Published Online:April 27, 2022
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| DOI： |
| KeyWord:mixed ventilation; Evaluation index; analytic hierarchy process; grey correlation method; fuzzy theory |
| Author | Institution |
| yanqingwen |
Yunnan Chihong Zinc Germanium Co., Ltd |
| tongxuelin |
Kunming University of Science and Technology |
| liyongxing |
Yunnan Chihong Zinc Germanium Co., Ltd |
| wangxiaodong |
Kunming University of Science and Technology |
| chenshupeng |
Kunming University of Science and Technology |
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| Abstract: |
| For a long time, face ventilation has been a difficult problem in mine safety ventilation, in order to arrive at the best local ventilation plan. This paper takes the mining face of a mine in Yunnan as the research object, proposes a variety of mixed local ventilation schemes, based on the analytic hierarchy process (ANP), selects 9 evaluation indicators from three aspects of technical benefit, safety benefit and economic benefit, and establishes the palm The network structure of the sub-surface ventilation effect evaluation index is used to optimize the ventilation scheme. The research results show that: ventilation and electricity costs per ton of mine are the most influential indicator, accounting for 25.92%, followed by dust exhaust wind speed, accounting for 21.56%. The relative superiority and inferiority ranking value of each program is C3＜C1＜C2＜C5＜C6＜C4, When the dust wind speed is 0.4m/s, it is the optimal ventilation scheme, the ventilation effect is the best, and the comprehensive weight is 67.72%. The optimal scheme provides a guarantee for the production of the mine, and the working surface environment can achieve the expected results. It also provides a reference for the research on ventilation of the working surface under the same environment, and has certain social value. |
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