Optimization Design and Test of Main Fan Control Device in a Coal Mine
In view of the low fault diagnosis accuracy and lack of fault prediction and alarm function of the main fan control device in Xiahuo Coal mine,the original main fan control device is optimized.On the basis of analyzing the structure of the main fan and the main faults,the vibration sensor,speed sensor and data acquisition card are rationally arranged,and the sensor signals collected are analyzed by wavelet packet analysis and FFT analysis,and the effective fault characteristic parameters are extracted and the test analysis is completed.The analysis results show that the fault diagnosis accuracy of the optimized main fan control device in coal mine can reach 87.1％,and the fault can be effectively predicted and warned,which ensures the safety,stability and efficient production of coal mine.
main ventilatorcontrol devicefault diagnosisfault early warningsensordata acquisition
NETL
NSTL
万方数据
