Positioning Mine Ventilation Recirculation Winds Based on the Depth-First Search Method

This paper put forward the method of positioning the recirculation wind in one mine ventilation system according to the practical mine ventilation problems. Depth-Fist search method was used to locate the recirculation winds; the node where a fan located was designed as the beginning and the end of search because most of the recirculation winds are near the fan. Search strategy of Depth-Fist research method was modified in order to realize the function of locating recirculation winds; this paper also showed the example of real mine ventilation on recirculation winds’ problems.