Product Introduction:

Spiral conveyor is a widely used conveying equipment in the chemical, mineral, feed, grain and oil, and construction industries. It is made of steel and is used to transport high-temperature powders or solid particles and other chemical and building materials products. This semi open screw conveyor is easy to maintain.

working principle:

When the spiral shaft rotates, due to the gravity of the material and the frictional force generated with the groove wall, the material can only move forward along the groove bottom of the conveyor under the push of the blades, as if a nut that cannot rotate moves in translation along a rotating screw. The movement of materials in the middle bearing relies on the thrust of the materials moving forward from behind. So, the transportation of materials in the conveyor is entirely a sliding motion. In order to keep the screw shaft in a favorable tension state, the driving device and discharge port are generally placed at the same end of the conveyor, while the feed port is placed as close to the tail of the other end as possible. The rotating spiral blades push the material for transportation, and the force that prevents the material from rotating together with the spiral conveyor blades is the weight of the material itself and the frictional resistance of the spiral conveyor housing to the material. The surface shape of the blades varies depending on the type of material being conveyed, including solid surface, belt surface, and blade surface. The screw shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to provide axial reaction force to the screw along with the material. When the machine is long, an intermediate suspension bearing should be added.