Evaluation on Reasonability of Operating Points of Main Ventilator

In order to ensure the scientificity and rationality in the working condition of ventilator, two evaluation indexes were presented to evaluate reasonability of operating points of main fan in the west wind well of Panxi Coal Mine. One is to use ventilation potential L to assess the adjustable scope of operating points, the other is to apply ventilation effect E to evaluate the economics of the operating points, and both two ensure safe and efficient operation of the fan.