Screw Conveyor

A screw conveyor is a type of mechanical conveying system that uses a rotating helical screw blade to move materials. Here are some key features and specifications:

Components

1. Screw: Helical screw blade that rotates to move materials.
2. Trough: U-shaped or tubular housing that contains the screw.
3. Bearings: Support the screw at either end.
4. Drive: Electric motor or gearbox that powers the screw.
5. End seals: Prevent material from spilling out at either end.

Specifications

1. Screw diameter: 100 mm to 1000 mm (4 in to 39 in).
2. Screw length: Up to 30 meters (100 ft).
3. Speed: 10 rpm to 200 rpm.
4. Capacity: Up to 1000 tons per hour.
5. Power: Up to 500 kW (680 HP).

Types

1. Horizontal screw conveyor: Used for conveying materials horizontally.
2. Inclined screw conveyor: Used for conveying materials up or down inclines.
3. Vertical screw conveyor: Used for conveying materials vertically.

 Applications

1. Food processing: Conveying grains, powders, and other food products.
2. Chemical processing: Conveying powders, granules, and other chemical products.
3. Mining: Conveying minerals, ores, and other mining products.
4. Wastewater treatment: Conveying sludge, biosolids, and other wastewater products.

Advantages

1. Low maintenance: Simple design with few moving parts.
2. High efficiency: Can convey materials at high speeds and capacities.
3. Flexibility: Can be used in a variety of applications and industries.
4. Cost-effective: Relatively low cost compared to other conveying systems.

• Screw Conveyor usually consist of a trough or tube containing either a spiral blade coiled around a shaft, driven at one end and free at the other.