The belt conveyor is continuous transport machinery as well as a general machinery. The belt conveyor is widely applied in production line of ports, power plants, steel plants, cement plant, grain and other light industry. It could handle both bulk material and unit load with small noise and simple structure during working. The belt conveyor could be applied for horizontal or inclined transportation. The belt conveyor could also be mounted on continuous transportation machineries like the shiploader, shipundloader, stacker and reclaimer, etc. the belt conveyor includes parts like belt, support, drive pulley, bend pulley, carrying idler, return idler, tension mechanism, belt cleaner, etc. The belt conveyor is widely applied at large ports and metallurgy plants. The total length could reach dozens of miles.