Abstract:To improve efficiency and reduce energy consumption of belt conveyor, an intelligent speed control system of belt conveyor based on computer vision technology is put forth and applied to belt conveyors in the 1506 main roadway. The results show that: (1) applying the computer vision technology to coal flow monitoring of conveyor has such advantages as convenient arrangement of monitoring points and highly reliable monitoring results. Besides, this can provide certain basis for the subsequent unattended belt conveyor in the mine. (2) Applying fuzzy control to the intelligent tiered speed control of belt conveyor and formulating reasonable ranges of coal flow and conveying speed based on changes in coal amount, which not only meets the needs of coal conveyance in the working face, but also avoids issues such as a high failure rate of motors as a result of frequent speed control of conveyors. After adopted by the site of 1506 main roadway, this intelligent tiered speed control system can control the speed of belt conveyor at 3.5m/s for a long time, and make intelligent adjustments to the speed based on changes in coal amount, which not only satisfies the need of coal conveyance but also remarkably reduces energy consumption of conveyor.
