Due to the particularity of the operation of the mining scraper conveyor and the harshness of the downhole environment, problems such as smoke, deviation, coal storage, and over-temperature often appear in the application process. For these problems, artificial faults are now the first choice. This method has the problems of poor processing power, low reliability, and high cost. Therefore, further application research on the electrical control system of the existing scraper conveyor is needed.
And from the aspects of explosion-proof equipment, power modules, various sensors, etc., the electrical control system was optimized and planned, and field tests were performed in the coal mine. The structural characteristics of the electrical control system are mainly driven by drive rollers and driving equipment. , Rack, conveyor belt, feeding equipment, redirection equipment, electrical control system and other components.
The electrical control system is mainly composed of a console, a man-machine interface, various sensors, and protection equipment. Through the electrical control system, it can detect, identify, and judge the problems of equipment damage and excessive temperature problems during the operation of the conveyor. The alarm is based on the principle that the electrical control system first passes the relevant data signals collected by various sensors.
Then send the data to the control system of the master station. The master station uses the RS232 bus to upload the control signal to the host computer and the main console. Together, the host computer announces the response command to the scraper conveyor; under automatic control, the master station PLC passes After the calculation, the corresponding actions and instructions are announced and sent to the slave PLC to perform further operations and monitoring.