Working process

When the screw shaft 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 conveyor under the pushing of the blade. The rotating screw acts the same as the translational movement. The movement of the material in the intermediate bearing is based on the thrust of the material moving forward. Therefore, the transport of materials in the conveyor is completely a slip motion. In order to make the screw shaft in a more favorable tension state, the driving device and the discharge port are generally placed at the same end of the conveyor, and the feed port is placed as close as possible to the tail of the other end. The rotating spiral blade conveys the material and the force of the material not rotating together with the screw conveyor blade is the weight of the material itself and the frictional resistance of the screw conveyor casing to the material.

Application

Screw conveyors are widely used in various industries, such as building materials, chemicals, electric power, metallurgy, coal charcoal, grain and other industries. They are suitable for conveying powdery, granular and small block materials horizontally or obliquely, such as coal, ash, slag, cement, Grain, etc., the material temperature is less than 200 °C. Screw machines are not suitable for conveying materials that are prone to deterioration, viscous, and agglomerate.