摘要
Abstract
In order to understand the airflow characteristics of air multipliers during use and facilitate their use under mines,an experimental method is selected to establish an air multiplier ventilation experimental system using devices such as wind ducts,air compressors,air storage tanks,and anemometers,etc.Through this experimental system,the airflow characteristics of air multipliers are conducted to be experimentally studied,and the effects of different inlet distances and outlet distances on the air multiplier's wind speed and mass flow rate are researched.The results show that in the air multiplier ventilation system,the smaller the air inlet distance and the larger the air outlet distance,the better the multiplication effect of the air multiplier in the ventilation system.The obtained relevant conclusions can provide bases for the use of the air multiplier in the gas governance of the upper corner under the mine.关键词
上隅角/瓦斯积聚/空气倍增器/进风口距离/出风口距离Key words
upper corner/gas accumulation/air multiplier/air inlet distance/air outlet distance分类
矿业与冶金
