Z-type elevator is a kind of mechanical equipment used for conveying materials and products, mainly through the motor drive chain to drive the hopper, in the sealed shell according to the predetermined track for horizontal - vertical - horizontal (or only horizontal) lifting and conveying, the hopper mouth is always upward in this process, the material is in a static state, when the hopper reaches the position of the feeding port, Then the unloading work is completed by automatic unloading device. It is not the excavation feeding of traditional lifting and conveying equipment, but the inflow feeding method is used, and the auxiliary equipment such as vibrating cloth machine is used to achieve uniform feeding.