Conveyor is a material handling machine that continuously transports materials on a certain line, also known as a continuous conveyor. Conveyors can be horizontal, inclined, and vertical, or they can be made up of space transmission lines, which are generally fixed. The conveyor has a large conveying capacity and a long distance, and can also complete several process operations during the conveying process, so the application is very extensive.
Conveyors are generally sorted by whether or not there are traction elements. Conveyors having traction members generally include a traction member, a load bearing member, a drive device, a tensioning device, a redirecting device, and a support. The traction elements are used to transmit traction, which can be used as conveyor belts, traction chains or steel wire ropes; the load bearing members are used to hold materials, such as hoppers, brackets or spreaders, etc.; the driving devices are used to power the conveyors, generally by motors, speed reducers and Brake (stopper) and other components; tensioning device generally has two kinds of screw and hammer type, can make the traction to maintain a certain degree of tension and sag, to ensure the normal operation of the conveyor.

This type of conveyor has a wide variety of types, mainly including belt conveyors, plate conveyors, trolley conveyors, scraper conveyors, buried scraper conveyors, bucket conveyors, bucket elevators, and overhead conveyors.

The structural composition of the conveyor without traction is different, and the working members used to convey the material are also different. Their structural features are: the use of the rotating or reciprocating motion of the working member, or the use of media in the pipeline to make the material forward. For example, the working members of the roller conveyor are a series of rollers, which perform rotational motion to convey the material; the screw conveyor's working member is a screw, the screw rotates in the material trough to push material along the material trough; the work of the vibrating conveyor The component is a chute, and the chute reciprocates to convey the material placed therein.
In the future, the conveyor will develop towards large-scale development, expanding the scope of use, automatic sorting of materials, reducing energy consumption, and reducing pollution.
Extending the scope of use of conveyors refers to the development of conveyors that can operate in corrosive, radioactive, and flammable materials at high and low temperatures, as well as conveyors capable of transporting hot, explosive, brittle, and sticky materials. .