用风流引射器处理回采工作面上隅角积聚瓦斯的研究

Research into Ucsing the Air-flow Ejector for Handling Methme Accumulation in the upper Corner Aangle Area of the Stoping Face

本文分析了回采工作面上隅角瓦斯积聚的原因以及目前解决这一问题的方法和存在问题；对其研制的风流引射器系统的应用效果进行了考察，肯定了该系统在生产中应用的有效性。

The paper gives an analysis of the cause for methane accumulation in the upper corner angle area of the stoping face with present ways for setting this problem and the difficulties that exist in this system offered. Al file same lime, it conducts an investigation into the application effectiveness of the newly developed air - flow ejector system and its feasibility in production.