根据流体力学中空气射流理论，分析研究了采用空气幕隔离综采工作面司机处呼吸性粉尘的原理及其方法该空气幕在采煤机司机处与煤壁间形成了一道“无形透明的屏障”，阻隔采煤机截煤过程中粉尘向司机处扩散，应用于现场效果明显，平均隔离呼吸性粉尘效率达８２．３４％，有较大的实用价值和广泛的应用前景图２，表２，参５ According to the theory of air jet in fluid mechanics, the principle and method of using air curtain to isolate respirable dust at the driver’s working face are analyzed and studied. The air curtain forms an “invisible and transparent Barrier ”to prevent the coal from dusting during the coal cutting process to the driver’s office. The effect is obvious. The average efficiency of isolated respirable dust is 82.34%, which has great practical value and wide application prospect. Figure 2, Table 2, reference 5