Bucket elevator is a continuous conveying machine that uses a series of hoppers that are evenly fixed on endless traction components to vertically lift materials. The working principle is: the hopper scoops up the material from the hopper below, as the conveyor belt or chain is lifted to the top, it turns down after bypassing the top wheel, and the bucket elevator pours the material into the receiving tank. The belt drive bucket elevator generally uses rubber belts, which are installed on the lower or upper drive rollers and the upper and lower reversing rollers. Chain drive bucket elevators are generally equipped with two parallel drive chains, with a pair of drive sprockets on the upper or lower side, and a pair of reversing sprockets on the lower or upper side. Bucket elevators are generally equipped with an organic shell to prevent dust from flying in the bucket elevator.