Research Progresses of Air Curtain

This paper introduces the global research progresses of air curtain for gate and mine by explaining the theoretical formula of air curtain for mine at different stages and the structure and function of air curtain for mine. It summarizes the layout style and wind-taking mode of air curtain for mine. The mine air curtain has the functions of cutting off air flow by replacing air door, ejecting air flow by replacing auxiliary fan and fan station and increasing air resistance and decrease air flow by replacing air window. It is of vital significance in resolving air flow control problems in transport tunnels and easily-deformed tunnels, such as, air flow short-circuit, duty air stagnation, air flow reverse, duty air circulation, etc.