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机构地区:[1]中国矿业大学安全工程学院,煤炭资源与安全开采国家重点实验室,江苏徐州221116
出 处:《采矿与安全工程学报》2008年第1期119-122,共4页Journal of Mining & Safety Engineering
基 金:国家重点基础研究发展计划(973)项目(2005CB221506);国家自然科学基金项目(50534090,50574093)
摘 要:为了提高矿井瓦斯抽放系统的效率和可靠性,根据图论理论和矿井瓦斯抽放系统的关系,采用图论的理论和方法来表示抽放系统图,计算了瓦斯抽放系统各管路阻力,简化了矿井瓦斯抽放系统并建立了抽放系统网络图,解决了抽放系统局部阻力过大等问题.研究结果表明:抽放系统改造后,抽放阻力分布均匀,增加了矿井瓦斯抽放量,提高了矿井安全性,也为瓦斯利用奠定了坚实的基础,从而形成一个"以抽保用、以用促抽、安全生产"的良性循环,更好地实现了瓦斯综合治理.In order to improve the efficiency and reliability of mine gas drainage system, according to the relation of graph theory and gas drainage system, the graph theory was used to show the gas drainage system chart. Resistances every pipeline of the drainage system were calculated; the mine gas drainage system was simplified, the drainage system network chart set up, and the problem that local resistance was too great in the drainage system was solved. The results show that, after the improvement of drainage system, the drainage resistance is equally distributed, the volume of gas extracted from coal mine increases, and the safety of the mine is ensured, laying a firm foundation for the utilization of gas. All these result in a virtuous cycle of "extraction-usage-safety production" and in realizing comprehensive gas control.
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