The Research On The Saving Energy And Control System Of The Main Water Pumps For The Coal Mine

The drain is very important in the proudetion of coal mine.At Present，there are more coalmines use relay control method，it is very complex, need a lot of human. In order to meet theneeds of the coal mine drainage system, design automation drainage system use the PLC andconfiguration king, improve the work reliability and stability of system. Combined with theactual situation of the coal mine for Wuhai Limin,first chooses the device,second designs theautomatic control.This system adopts PLC series produced by LanYu, expands the controller with necessaryanalog input unit、communication unit and digital input&output unit.It includes automatic、semiautomatic and manual woking modes to choose. In order to prevent running water pumpsand pipelines hasing failure, adopts the automatic rotation of duty.When water inflow is few,decides the control strategy combined with the optimal control and electricity saving.When thewater inflow is more,adopts fuzzy control,realizes the function of predicting for water level,predicts the change trend of the water level by grey theory. Test the operation of equipment,troubleshooting timely.Combines with PLC and configuration, chooses the corresponding control method, to makeup for the deficiency, it is very necessary.