煤矿带式输送机协同控制系统设计

Design of Collaborative Control System for Coal Mine Belt Conveyor

针对带式输送机存在单机控制效率低、设备多、工序复杂、能源利用效率低、协同控制性差等问题,设计了一套带式输送机协同控制系统。该系统采用超声波载荷传感器实时获得当前位置的载荷高度,再利用速度传感器推算得到输送机的载荷分布信息。能够实现顺煤流启动、逆煤流启动、煤流停止等集控操作。带式输送机运行时,协同控制系统能够监控输送机的煤量分布和载荷信息,进行高速、中速、低速、怠速调节运行。试验表明:协同控制逆、顺煤流启动,煤流停止、急停均能正常运行;带式输送机平均每天调速时间为192 min,按照16 h/d的生产时间,在20.03%的时间内节约了能源消耗,实现了煤多快运、煤少慢运、无煤怠速的协同经济运行。

A belt conveyor collaborative control system was designed to address the issues of low single machine control efficiency,multiple equipment,complex processes,low energy utilization efficiency,and poor collaborative control performance of belt conveyors.The system used ultrasonic load sensors to obtain real-time load height at the current position,and then used speed sensors to calculate the load distribution information of the conveyor.Capable of achieving centralized control operations such as coal flow start,reverse coal flow start,and coal flow stop.When the belt conveyor is running,the collaborative control system can monitor the coal distribution and load information of the conveyor,and adjust the operation at high,medium,low and idle speeds.The experiment showed that the collaborative control of reverse and forward coal flow start,coal flow stop,and emergency stop could both operate normally.The average daily speed control time of the belt conveyor was 192 minutes,which saved energy consumption within 20.03%of the production time of 16 hours per day.The coordinated economic operation of fast transportation was realized with more coal,slow transportation with less coal,and idle operation without coal.