井下单风机高压引射技术研究

Research on High Pressure Ejection Technology of Underground

为解决矿上工作面局部由于通风阻力大等造成通风量不足的问题,基于高压引射技术,对井下单风机高压引射技术进行研究,简化得到了单风机高压引射的最有效断面设计尺寸公式,通过数值模拟的方法测出引射器的半径为0.46 m时工作效率最高,巷道通风量最大。

In order to solve the problem of insufficient ventilation volume caused by large ventilation resistance in local working face of mine,based on high-pressure ejection technology,this paper studies the high-pressure ejection technology of underground single fan,simplifies and obtains the formula of the maximum cross-section design size of high-pressure ejection of single fan.The maximum efficiency of ejector and roadway opening are obtained when the radius of ejector is 0.46 m by means of numerical simulation.The air volume is the largest.