Chain Drive Pneumatic Conveying System: How It Works for Horizontal and Vertical Material Transport
The chain drive system is a highly efficient method for conveying materials through a closed pipeline. This type of system uses the power of chains and disks to move solid materials from one location to another. It operates by utilizing the internal friction of the material and the dynamic force applied by the chain and disks to transport materials either horizontally or vertically. Let’s take a closer look at how it works in each direction:
1. Horizontal Material Conveying
When the material needs to be conveyed horizontally, the solid material is pushed forward by a series of rotating disks that are connected to the drive chain. These disks play a crucial role in propelling the material through the pipeline.
In this system, the movement of the material relies on the balance between the internal friction of the material layer (the friction between individual particles of the material) and the external friction (the friction between the material and the pipe walls). When the internal friction within the material layer becomes larger than the external friction acting between the material and the pipe wall, the material moves forward.
As the disks rotate, they continuously push the material along the closed pipeline, maintaining a stable and uniform material flow. The closed design of the pipeline ensures that the material is securely contained during transport, avoiding any potential spillage or loss of product.
2. Vertical Material Conveying
Vertical conveying is a bit more complex due to the influence of gravity. When materials are conveyed vertically, the system relies on the chain-driven disks to lift the material upward. As the disks push the material, the material’s gravity acts to pull it downwards, creating a challenge for vertical material transport.
To overcome this, a bottom feeding mechanism is employed. This mechanism prevents the upper material from falling down by generating horizontal side pressure, which, in turn, increases the internal friction within the material layer.
As the internal friction between the particles becomes greater than the combined effect of the material’s own gravity and the external friction from the pipe wall, the material will begin to rise along the pipeline. This upward movement continues as long as the internal friction remains dominant over the opposing forces, allowing for a continuous flow of material in the vertical direction.
Tube Chian Conveyor Design Data:
Capacity = 300m3/h
Length: horizontal =80m Vertical =60m
Single machine power: =15KW
Main technical parameters for DN100 tubular chain conveyor:
| Q(m³/h) | 1.25 | 2.00 | 2.65 | 4.00 | 5.50 | 7.00 | 8.75 |
| P(KW) | 0.75 | 1.10 | 1.50 | 2.20 | 3.00 | 4.00 | 4.00 |
| V(m/s) | 0.06 | 0.09 | 0.13 | 0.19 | 0.26 | 0.33 | 0.42 |
| n(1/min) | 3.20 | 5.40 | 7.30 | 11.00 | 15.00 | 19.00 | 4.00 |
Tubular Conveyor Features:
1. Provides totally enclosed, dust-free, contamination-free handling,no need dust collector at the discharge.
2. Requires minimum horsepower and energy consumption.
3. Handles hot, cold, wet, dry, hygroscopic or temperature sensitive materials.
4. Self feeding with most flowable materials.
5. Gentle conveying action minimizes product attrition.
6. May discharge at multiple points in circuit; no special airlocks are required.
7. Operates at a minimum noise level.
8. Easily assembled in the field.
9. Saving cross-section Space,can be installed where other conveyor types cannot.
10. Food grade, polished stainless steel chain for food and pharmaceutical applications in sanitary environments.
11. Wide range of sizes and materials of construction as required.
Key Features and Benefits:
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Stable Flow: The disk and chain system ensures that the material moves steadily, without clumping or blocking in the pipeline.
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Reduced Wear: Because the system operates on the principles of friction and pressure, it minimizes the risk of wear and tear on both the material and the pipes.
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Versatility: The system can handle a variety of solid materials, including powders and pellets, making it ideal for industries like food processing, pharmaceuticals, and chemicals.
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Sealed System: The closed pipeline design keeps materials contained, reducing the risk of contamination, product loss, and environmental exposure.
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Cost-Effective: The chain-driven system is a reliable and cost-effective solution for moving materials over long distances, both horizontally and vertically.
Conclusion
In summary, the chain drive system offers an efficient and reliable solution for conveying materials, whether horizontally or vertically. By leveraging the internal friction of materials and the external pressure applied by the disks, the system can create a steady, continuous flow of material while overcoming challenges such as gravity and pipe friction. Whether used in horizontal or vertical applications, this system is highly effective for industries that need to transport solid materials in a secure, sealed, and cost-effective manner.