As we all know, tubular drag chain conveyor and screw conveyor are two commonly used conveying equipment in the field of conveying machinery. They are widely applied in industries such as chemical engineering, building materials, and mineral resources. Although both are used for the transportation of loose materials, they have different focuses in terms of structure, performance, and applicable scenarios. In the following text, I will thoroughly analyze the core features of both to provide reference for your selection.
Definitions Of Two Types Of Conveyors
Our Tubular Drag Chain Conveyor is a continuous conveying equipment composed of chains, discs, and pipes. The chain drives the disc to move within the pipe, and it has good sealing performance. It is specifically used for conveying powdery, small granular, and small block-shaped bulk materials. Its greatest advantage is that it can achieve three-dimensional conveying in horizontal, vertical, inclined, and turning combinations. It can also randomly deploy multiple inlets and outlets, suitable for various terrains, and will not be affected by height or angle. This is something that spiral conveyors do not have, and it is also one of the core reasons why many customers choose our products.
Screw Conveyor
A Screw Conveyor is a mechanical device composed of a screw blade and a casing. It uses an electric motor to drive the rotation of the screw blade to push the materials and achieve the purpose of transportation. Its structure is simple and relies on the rotation of the screw blade to complete the material transportation. It is suitable for various basic transportation scenarios and is a widely used basic transportation equipment in industrial production.
Working Principles Of The Two Types Of Conveyors
- Tubular Drag Chain Conveyor
The working principle of our tubular drag chain conveyor is that within a sealed pipeline, the chain & disc components serve as the driving components to move the materials along the pipeline. Through the continuous rotation of the chain, the disc drives the materials forward smoothly. The entire process is completed within a sealed space, which not only avoids material leakage but also reduces material loss. This design has been recognized by many customers who have requirements for environmental protection and material protection.
- Screw Conveyor
The working principle of the screw conveyor is that the rotating screw blade pushes the materials forward for transportation. The motor drives the screw blade to rotate at high speed. The thrust generated by the blade pushes the materials inside the casing forward, thereby completing the linear transportation of the materials. The operation is simple and easy to control.
Performance Comparison Of Two Types Of Conveyors
- Flexibility And Range Of Conveying
Tubular Drag Conveyor: Extremely flexible. Multiple feed and discharge ports can be set according to production needs. The conveying distance can reach 80 meters, and the lifting height can reach 40 meters. Three-dimensional turning conveyance has no dead zones and can adapt to various complex terrains, avoiding material accumulation and residue.
Screw Conveyor: Less flexible. Mainly linear conveying. The conveying distance and lifting height are limited. Complex turning conveyance cannot be achieved. During the conveying process, material residue is prone to occur, and it is not suitable for complex terrain scenarios.
- Material Protection And Loss
Tubular drag chain conveyor: This design is for a sealed transportation system. The materials move smoothly within the tube, with minimal friction against the tube and components. It can protect the material form the most effectively, preventing fragmentation and loss. It is suitable for transporting granular and fragile materials.
Screw conveyor: The materials have significant friction with the screw blade and casing, which can lead to material fragmentation and loss. Moreover, the blade wears out quickly, especially not suitable for transporting fragile or precision materials. The frequency of blade replacement and maintenance is relatively high in the later stage.
- Environmental Friendliness And Applicable Scenarios
Tubular Chain Conveyors: Completely enclosed pipeline design, no dust leakage or material spillage, meeting environmental protection production requirements. It can be adapted to multiple industries such as chemical, food, and building materials, especially suitable for the transportation of flammable, explosive, and toxic hazardous materials (can be combined with explosion-proof and airtight designs).
Screw Conveyor: The sealing performance is relatively poor, prone to dust flying. The applicable scenarios are mostly for the transportation of ordinary industrial materials, and are greatly affected by the moisture and viscosity of the materials. Wet materials and viscous materials are prone to clogging the equipment.
- Energy Consumption And Maintenance Costs
Tubular Drag Chain Conveyor: Low energy consumption, stable structure, low component wear, low maintenance cost in the later stage, and low failure rate, which can effectively reduce downtime losses.
Screw Conveyor: Higher unit energy consumption, faster wear of screw blades and casing, need to replace blades regularly and conduct equipment maintenance, the maintenance cost is higher than that of tubular drag chain conveyor, and it is prone to blockage faults, affecting production efficiency.
Selection Suggestions
- If you need to transport fragile materials, high-precision materials, or require three-dimensional turning, long-distance transportation, multiple feeding/outlet ports, and have strict requirements for environmental protection and sealing, it is recommended that you choose the tubular drag chain conveyor first.
- If your production space is limited, the transportation distance is short, there are no special protection requirements for the materials, and you are seeking equipment with good cost-effectiveness and ease of operation, you can choose the auger conveyor.
- For industries such as chemicals and food that have strict requirements for sealing and environmental protection, it is recommended that you select the tubular drag chain conveyor first. This can effectively avoid problems such as dust leakage and material contamination.
If you have any questions regarding the selection and performance of Tubular Drag Chain Conveyors or Screw Conveyors, or if you need to customize a dedicated conveying solution based on your material characteristics and production requirements, please feel free to contact us at any time. We have a professional technical team that will provide you with one-on-one professional consultation and precise solutions, helping you optimize the conveying process and reduce operating costs. We look forward to working with you for mutual success!
