LS type auger conveyor

What’s an auger conveyor?

An auger conveyor, also known as a screw conveyor, is a type of mechanical equipment used to transport bulk materials. It consists of a helical screw blade (auger) that rotates within a tube or trough, moving materials along its length. Screw conveyors are widely used in various industries, such as building materials, chemicals, electricity, metallurgy, coal, grain and other industries. They are suitable for horizontal or inclined conveying of powdered, granular and small block materials, such as coal, ash, slag, cement, grain, etc., with material temperature less than 200°C. Screw conveyors are not suitable for conveying perishable, sticky and easy-to-cake materials.

Horizontal Screw Conveyor

Horizontal screw conveyors are widely used mechanical devices that transport bulk materials along a horizontal plane. Moreover, they offer simplicity, reliability, and versatility for various industrial applications.

• Agriculture: Used to transport grains, seeds, and animal feed from storage to processing equipment.

• Food Processing: Commonly employed to move dry ingredients like flour, sugar, and spices to mixers or packaging lines.

• Chemical Industry: Ideal for handling powdered chemicals and bulk materials in various processes.

• Waste Management: Utilized in recycling and waste treatment facilities to convey materials.

Inclined Screw Conveyor

Inclined screw conveyors specialize in moving bulk materials at an angle, typically between 15 to 60 degrees from the horizontal. Furthermore, they are ideal for applications where space is limited or where users need to elevate materials from one point to another.

• Space Efficiency: Ideal for applications where vertical space is limited, allowing for compact installation.

• Easy Integration: Can be easily integrated into existing systems for material handling and processing.

• Adjustable Flow Rates: The speed of the screw can be adjusted to control the rate of material transport.

• Reduced Material Segregation: The gentle handling of materials minimizes segregation and degradation.

Specification

Drawing 

Advantages of Auger Conveyors:

Simple and Compact Design:

The structure is straightforward and compact, and it has a small cross-sectional size. This design enables users to install and operate it in locations where other conveying equipment cannot be easily implemented.

Reliable Operation:

It is dependable and easy to maintain, with a low cost—typically only half that of bucket elevators.

Enclosed Troughs:

The conveyor can have a fully enclosed trough, enabling sealed transportation to reduce environmental contamination from materials, making it especially suitable for handling dusty materials.

Flexible Feeding and Discharge:

It can have multiple feed points and discharge points, providing flexibility in industrial arrangements.

Reversible Direction:

The direction of material transport is reversible, allowing a single conveyor to move materials in both directions simultaneously.

Multi-functional Operations:

During material transport, it can simultaneously perform mixing, stirring, loosening, heating, and cooling operations.

Conveying capacity

When selecting a calculation formula, it is important to consider the specific type of auger conveyor, the characteristics of the material, and the conveying conditions. Also, ensure that the units of each parameter in the formulas are consistent to guarantee the accuracy of the results.

Here are some common ones:

Formula one:

Q=πD²Snρv

• Q: Conveying capacity (m³/h)
• D: Screw diameter (m)
• S: Screw pitch (m)
• n: Rotational speed (r/min)
• ρ: Bulk density of the material (t/m³)
• v: Average linear speed of the material during transport (m/s)

Formula two:

Q=47βρD²ntpC

• Q: Conveying capacity (t/h)
• D: Screw diameter (m)
• n: Rotational speed (r/min)
• β: Fill factor
• ρ: Bulk density of the material (t/m³)
• p: Material resistance number
• C: Angle coefficient

Formula three:

Q=60×π×D²×n×S×ρ/4×V

• Q: Conveying capacity (m³/h)
• D: Screw diameter (m)
• n: Rotational speed (r/min)
• S: Screw pitch (m)
• ρ: Density of the conveyed material (kg/m³)
• V: Viscosity of the conveyed material (Pa·s)

For more information or technical inquiries, please feel free to contact us. We are happy to assist you.

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