Bucket elevators are very efficient equipment for the continuous, vertical, dust-free transport of granulated and powdered bulk goods and derivates, such as those processed in the animal-feed and food industries.
Bucket elevators move granulated bulk goods vertically in a continuous product flow using a large number of elevator buckets that are fitted at equal intervals on the elevator belt.
This belt runs over a pulley both at the top and at the bottom of the elevator. The top pulley is driven, the bottom pulley is designed as a by-pass slide with a tensioning device. The belt is used both to transport product and to transmit power. The ascending and the descending parts of the elevator almost always run in casings, usually separately but sometimes together. These casings are fitted to the elevator base and support the elevator head.
The base can be fitted with one or two intake chutes. The head has a discharge opening that guides the product to subsequent transport. When an elevator is discharging, both gravity and centrifugal forces play an important role. The design of the inlet and discharge connections has a major effect on the capacity of the elevator. The content and shape of the elevator buckets, the bucket spacing, the belt speed and the pulley diameters also play an important role.