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| Selection and layout analysis of gas extraction equipment in No.15 coal seam of Dongxing Coal Mine |
| Zhao Chunyang |
| Shanxi Coal Construction Supervision Co., Ltd., Taiyuan 030000, China |
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Abstract Before the mining of No.15 coal seam in Dongxing Coal Mine, gas extraction is needed. Before the establishment of gas extraction system, the selection and arrangement of extraction pipeline and pumping station are carried out. According to the actual situation, the high negative pressure and low negative pressure gas extraction pipelines of the mine were arranged and selected. According to the gas extraction amount, the gas extraction pump was selected. Finally, both the high negative pressure extraction pump and the low negative pressure extraction pump selected 2BEC120 water ring vacuum pump. The practice shows that the operation effect of the designed and selected extraction system is good, which meets the requirements of coal mine safety production, and provides a certain technical reference for the selection and layout of gas extraction equipment
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