Design Of Control System Of Main Lifting Belt Conveyor In Coal Mine

According to the characteristics of the traditional Ningtiaota Coal Mine main hoist belt conveyor control system.In this paper,with the aid of computer technology,PLC control technology,frequency control technology,power balance control technology and sensor technology,the Ningtiaota Coal Mine Design the control system of belt conveyor.According to the belt conveyor structure and force analysis of the drive motor and the drive units are selected for belt conveyor.Aiming at the problem of power balance of multi motor driving belt conveyor,a power balance control strategy is proposed,which can effectively control the power balance of a plurality of motors.Belt conveyor control system hardware design,which mainly consists of a PLC control system,power supply system,comprehensive protection system and background monitoring system,the PLC control system with variable frequency control system of PLC inverter and the monitoring system for belt conveyor automatic remote control and operation parameters of centralized monitoring,and have set in situ,control,maintenance,locking four working modes and normal parking,emergency stop,suddenly stopping power three parking mode.SIEMENS configuration software developed by WINCC monitoring software,including remote monitor module,parameter setting module and protection module,event query module,friendly interface,simple operation,convenient maintenance and management.Based on the above design,on-site operation test by Ningtiaota Coal mine belt conveyor control system.puts forward a comprehensive protection system and remote monitoring system with PLC as the core of the control system,realize remote control and comprehensive protection of the belt conveyor protection function,enhance the safety and reliability of the belt conveyor,to reduce energy consumption,improve the efficiency of coal transportation.The test results show that the designed control system to realize the soft start and stop control,power balance control and comprehensive control of belt conveyor system is stable and reliable,fully meet the needs of coal mine production.