Screw conveyor is a machine that uses a motor to drive the screw to rotate and push materials to achieve the purpose of conveying. It can convey horizontally, inclined or vertically, and has the advantages of simple structure, small cross-sectional area, good sealing, convenient operation, easy maintenance, and convenient closed transportation.

Screw conveyors are widely used in various sectors of the national economy, such as the grain industry, building materials industry, chemical industry, machinery manufacturing industry, and transportation industry. Screw conveyors are mainly used to convey various powdery, granular, and small block materials.

The bulk materials conveyed include grains, beans, flour and other grain products, cement, clay, sand and other building materials, salts, alkalis, fertilizers and other chemicals, as well as coal, coke, ore and other bulk cargoes.

Screw conveyors are not suitable for conveying perishable, sticky, large-block and easy-to-agglomerate materials. In addition to conveying bulk materials, screw conveyors can also be used to transport various finished items.

Screw conveyors can complete mixing, stirring, cooling and other operations while conveying materials.

In ports, screw conveyors are mainly used for unloading trucks and ships and for horizontal and vertical transportation of bulk materials in warehouses.