Experimental Simulation and Application Research of Plane Jet Isolating Dust Theory

摘要

Basing on air jet theory of fluid dynamics, the principle and means of plane jet air curtain isolating respiratory dust around the operator in work face is investigated. The 3-D airflow field of air curtain (AC) isolating dust in mechanized work face is simulated by CFD software PHOENICS, the form and isolating dust action of AC are tested by fume-tracing, and the AC designed on the base of above gets better isolating dust effect in site application. AC seems as an 'invisible transparence shield', resisting dust diffusing toward the operator, and attains 72% efficiency of isolating respiratory dust. It contains more practical and extensive application foreground.