通化矿务局水力采煤工作面的瓦斯治理

Gas Control at the Hydromining Face of Tonghua Mining Administration

本文简要介绍了通化煤田瓦斯、地质概况；1978年以来采用水力采煤工艺开采过程中采煤工作面出现的瓦斯通风问题；以及在生产实践中采取的多种治理瓦斯的方法和措施。主要是：巷道布置的改进、掘送尾巷、分层开采、水力驱动抽出式局扇和水环式真空泵的应用，回风顺槽预留管和加强全压与局部通风系统管理工作等措施，都取得了较好效果。

Following a general introduction of the gas and geologicalconditions of the Tonghua coalfield, as well as the gas and ventilation problems encountered at the mining face since introduction of hydromining method in 1978. the gas control methods and measures applied are many and varied. through improvement of layout of headings, and drivage of tailing ways,slice mining, use of water-driven local exhaust fan and water- ring vacuum pump, pre- laying of drainage pipes in air- return entries, and intensified management work for total pressure and local ventilation systems, better result has been obtained in gas control work.