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| Analysis on optimization of gas drainage pipe network system in Datun Mine |
| Jia Changzhong, Guo Hailiang |
| Tianyu Mining Industry Corporation Ltd., Yangquan Mining Group, Xinzhou 034000, China |
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Abstract In order to optimize the gas drainage system, the No. 3 transportation roadway of 16 was chosen as the test point to set up different drainage plans, the most optimized negative pressure was 35 kPa, the reasonable diameter was got by calculation, improving gas piping system and providing technical basis for gas drainage of the mine.
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