Screw Conveyors

When the screw shaft of the screw conveyor rotates, due to the gravity of the material and the friction generated by the wall of the tank,

the material can only move forward along the bottom of the groove of the conveyor under the push of the blade, which is like a nut that

cannot be rotated along the rotating screw for translation movement. The migration of the material in the middle bearing depends on the

thrust of the material moving forward behind it. Therefore, the transport of materials in the conveyor is a sliding movement. In order to

make the screw shaft in a more favorable tension state, the drive device and the discharge port are generally placed on the same end of the

conveyor, and the feed port is placed near the tail of the other end as far as possible. The rotating spiral blade will push the material and

transport it, so that the material does not rotate with the spiral conveyor blade is the material’s own weight and the friction resistance of

the spiral conveyor shell to the material. According to the different conveying materials, there are solid surface type, belt surface type,

blade surface type and other types. The screw shaft of the screw conveyor has a thrust bearing at the end of the direction of material

movement to react with the axial force of the material to the screw. When the captain is long, the middle hanging bearing should be added.