Abstract:
Taking a certain mine of Shanxi Jiaomei Group as an example, Firstly, based on the gas emission situation of the mining coal seam in the mine and the comprehensive extraction method, this paper analyze the necessity and feasibility of establishing a gas extraction system, and designs two high and low negative independent gas extraction systems, which also reduces the ventilation burden for later mining, and mitigates the hidden dangers of gas accidents.Secondly, by calculating the diameter of gas extraction pipeline, the resistance of pipeline network, the pressure of extraction pump, and the flow rate of the extraction pump, reasonably determines the 2BEC87 water cycle vacuum pump with 1 for use and 1 for backup.Analyzes site selection requirements and precautions for the surface gas pumping stations, utilizes existing factory buildings that meet the requirements for renovation to save costs.Finally, configures and installs auxiliary safety facilities for gas pump station pipelines, ensuring the safe operation of pumping stations.After on-site testing and application, the gas extraction system operates well, providing reliable guarantees for gas extraction.