Bucket elevator is a kind of conveying equipment for vertically lifting materials. It has the advantages of simple structure, low maintenance cost, high conveying efficiency, high lifting height, stable operation and wide application [2].

(1) The driving power is small, adopting inflow feeding, induced unloading and large capacity hopper intensive layout, there is almost no phenomenon of returning and digging when the material is lifted, so the invalid power is small.

(2) It has a wide range of lifting. This kind of lifting machine has few requirements for the types and characteristics of materials. It can not only lift the general powder and small particle materials, but also lift the materials with higher grindability, good sealing performance and less environmental pollution.

(3) The operation reliability is good. The advanced design principle and processing method ensure the reliability of the whole machine operation, and the failure free time is more than 20000 hours. The lifting height is high. The elevator runs smoothly, so it can reach a higher lifting height.

(4) It has a long service life, the feeding of the elevator adopts inflow type, without bucket digging, and there is little extrusion and collision between materials. The machine is designed to ensure that the materials are less scattered during feeding and unloading, and reduce the mechanical wear.