Study On The Optimization To Ventilational System In The Third Coal Mine Of Ji Ning

By a complete and detail investigation about the mineral vetilation system, we practically measured the mineral ventilation systermatical resistance, and mastered the distuibution of vetilation resistance, acquired frictional air resistant coefficient of the the main lane under mineral well, provided scientific accordings to predicting and designing the ability of the mineral well ventilation; Tested the practical running capability parameter of main ventilator under the condition of different vane angle, confirmed running capability curve of main ventilator; According to the investigation of ventilated system of the mineral well and the air measurement of main well ventilated lane, confirming the branch air resistance of the the well ventilated network ,workouted the mine well basic ventilated network diagram.Combining the running founctional curve of the main ventilatior of mine well, researching and applying H.Close's extend method to work out the complicated ventilated network, making use of the computor to simulate the well ventilated network of mineral well, simulatly analysed the state of ventilation after taking some proper and rational regulated measurement of ventilated system. Discussed the state of well ventilation at different excatate disposal period from 2007 to 2009, simulatly analysed and predicted the state of well ventilation of well ventilated system reformal project, confirmed the advantage project of the well ventilated system to meet the need of scientify of the mineral well ventilated management and realize the safe reliability of mineral well ventilated system and the safe economic running of main ventilator.