乌东矿北采区B3-6煤层瓦斯抽采可行性研究

Feasibility study on gas drainage of b3-6 coal seam in north mining area of Wudong mine

矿井瓦斯严重制约着煤矿的安全生产工作,对煤层瓦斯进行抽采是治理瓦斯最直接有效的措施。为充分利用乌东矿资源,保证矿井安全高效生产,采用分源预测法预测了乌东矿北采区B3-6煤层工作面瓦斯涌出量,并从瓦斯抽采相关技术指标、保障安全及资源和环保的角度进行分析充分论证了乌东矿北采区B3-6煤层瓦斯抽采的可行性及必要性。结果表明:乌东矿北采区B3-6煤层达产后进行瓦斯抽采是必要的;采前预抽、卸压抽采或采用上隅角插管抽采采空区瓦斯的方法是可行的。

Mine gas seriously restricts the safety production of coal mine.Coal seam gas drainage is the most direct and effective measure to control gas.In order to make full use of the resources of Wudong mine and ensure the safe and efficient production of the mine,the gas emission of B3-6 coal seam working face in the north mining area of Wudong mine is predicted by using the separate source prediction method,and the feasibility and necessity of gas drainage of B3-6 coal seam in the north mining area of Wudong mine are fully demonstrated from the perspective of relevant technical indexes of gas drainage,ensuring safety,resources and environmental protection.The results show that it is necessary to carry out gas drainage after the B3-6 coal seam in the north mining area of Wudong mine reaches the production capacity;The methods of pre extraction,pressure relief extraction or upper corner intubation are feasible.