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What is Vertical screw conveyor?

The vertical screw conveyor and the horizontal screw conveyor are roughly the same in structure and are also composed of driving devices (motors, reducers, couplings), screws, bearings, troughs, feed ports, and discharge ports. Vertical screw conveyor is a continuous conveying equipment that uses forced feeding screw rotation to convey materials for lifting. It is suitable for powder, block, and granular materials, such as flour, cereals, cement, سماد, ash, sand, gravel, coal powder, lump coal, إلخ. The material temperature generally does not exceed 80 ° C, suitable for building materials, علم المعادن, الصناعة الكيميائية, التعدين, machinery manufacturing, coal ash, tobacco, grain, طعام, الدواء, وغيرها من الصناعات, but not suitable to transport materials that are easily deteriorated, viscous and easy to agglomerate. The screw conveyor has the advantages of a simple structure, low manufacturing cost, strong sealing, and convenient operation.

Working principle of Vertical screw conveyor

During the conveying process, the material rotates at a high speed with the screw. Due to the centrifugal force, the material forms several concentric layers in the trough, and the outer layer of the material is close to the trough wall. When the screw speed is high, the centrifugal force on the material is greater than the friction between the material and the surface of the screw. The material moves towards the outer edge of the spiral, exerting pressure on the walls of the chute and at the same time creating friction. Only when this frictional force is greater than the sum of the frictional force between the material and the spiral surface and the component force of the material gravity, the material will slide with the spiral surface and rise along the spiral trajectory in the opposite direction.

How to choose the right Vertical screw conveyor?

Selection guide for Vertical screw conveyor:

1. Physical and chemical properties of raw materials

2. The distance or height of transmission

3. According to the technological requirements of the conveyor capacity to determine the screw conveyor model specifications

4. Conveying capacity and Conveying speed

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