A belt conveyor is a friction-driven machine that transports materials in a continuous manner. It is mainly composed of a frame, conveyor belt, roller, roller, tensioning device, transmission device, etc. It can form a material transportation process from the initial feeding point to the final discharge point on a certain conveying line. It can transport both broken materials and finished items. In addition to pure material transportation, it can also cooperate with the requirements of the technological processes in the production processes of various industrial enterprises to form a rhythmic flow operation transportation line.