Thread Content
1) In terms of high-efficiency soft starting and power balance technologies, permanent-magnet variable-frequency synchronous direct-drive systems have been widely used in coal mine belt conveyors in recent years. 2) Certain progress has been made in the study of the dynamic behavior of conveyor belts in China. Research institutions such as Northeastern University and Shanghai Coal Science Research Institute have developed software for the dynamic analysis of belt conveyors, which has achieved good results in application on some long-distance, high-capacity belt conveyors. 3) The stability and reliability of the belt conveyor transportation system depend not only on the operational stability and reliability of each individual belt conveyor, but also on whether the design of the transfer points is reasonable. 4) With the advancement of video analysis technology and artificial intelligence, the intelligent sensing technology for belt conveyors has also developed rapidly. Through video image analysis technology, Ningxia Guangtiandaxia Electronics Company and Shanghai Coal Research Institute have developed devices for real-time coal volume monitoring and foreign object detection on belt conveyors. These devices can serve as a basis for intelligent speed control of belt conveyors, and by promptly identifying foreign objects on the conveyor belts, they help prevent losses of life and property. 5) Intelligent control technology for belt conveyors can enable their energy-efficient, efficient, and reliable operation. Through start-stop adaptive control, adaptive speed regulation based on coal volume, multi-level coordinated control, and coal flow balancing techniques, the transportation efficiency of belt conveyors is improved. The output of each drive motor is balanced, thereby achieving energy savings and emission reduction, minimizing losses, and extending the service life of the equipment. This also reduces the need for frequent speed adjustments, as well as issues such as coal spillage and overloading, while meeting the requirements of modern coal mining industries. 7) The intelligent operation and maintenance management platform designed to support the intelligent operation of belt conveyors is a weakness of the existing products on the market. Traditional automated control systems collect operational and fault information from devices and provide control and monitoring functions; they lack device management capabilities, and data sharing, deep integration, and utilization are not achieved.