Pipe chain conveyor is a continuous conveying equipment widely used in industries such as chemical, food, pharmaceutical, metallurgical, and building materials. Its working principle is to drive discs or scrapers through a chain, and push materials in a closed pipeline for transportation. However, in actual use, there may be material residue issues at the discharge port, which not only affects conveying efficiency but may also lead to material waste, equipment blockage, and even product quality problems. Therefore, in order to address the issue of residual materials at the discharge outlet, optimization is needed in terms of equipment design, operation and maintenance, as well as technical improvements. Here are some improvement methods:

1、 Optimize the design of the discharge outlet

1. Improve the shape of the discharge port

The design of the discharge outlet directly affects the fluidity and residual situation of the material. Traditional discharge outlets may be designed with right or acute angles, which can easily cause material accumulation. It is recommended to design the discharge port in a circular arc or horn shape to reduce the retention of materials at the discharge port. At the same time, ensure that the inclination angle of the discharge port is greater than the natural angle of repose of the material, so that the material can slide smoothly.

2. Increase the size of the discharge port

If the size of the discharge port is too small, it may cause materials to accumulate at the discharge port, especially for materials with poor fluidity. Appropriately increasing the size of the discharge port can improve the flowability of materials and reduce residue.

3. Set up vibration device

Installing vibration devices (such as vibration motors or pneumatic vibrators) near the discharge port can promote the smooth discharge of materials through vibration, avoiding residue caused by material adhesion or accumulation.

2、 Adjust the operating parameters of the equipment

1. Optimize chain speed

Excessive chain speed may cause materials to be unable to be discharged in a timely manner at the discharge outlet, while excessive speed may lead to material accumulation. Adjust the running speed of the chain according to the characteristics and conveying capacity of the material to ensure that the material can be discharged evenly and continuously.

2. Control the conveying volume

Excessive conveying capacity may result in excessive load on the discharge port, making it difficult to discharge materials in a timely manner. By adjusting the feed rate, ensure that the discharge port can handle the corresponding amount of material and avoid residue caused by overload.

3. Adjust the height of the discharge port

The height of the discharge port can also affect the effectiveness of material discharge. If the discharge port is too high, the material may remain due to insufficient gravity; If it is too low, it may cause material accumulation. Adjust the height of the discharge port according to the characteristics of the material and the conveying requirements to ensure smooth discharge of the material.

3、 Improve material properties

1. Control material humidity

For materials with high humidity, they are prone to adhere to the discharge outlet or inner wall of the pipeline, causing residue. Drying treatment or adding moisture-proof agents can be used to reduce the humidity of materials and improve their fluidity.

2. Add flow aid

For materials with poor fluidity (such as powders or viscous materials), an appropriate amount of flow aid (such as silica or talc powder) can be added to reduce the adhesion between materials and improve their fluidity.

3. Optimize material particle size

The particle size of materials, whether too large or too small, may affect their fluidity. For materials with excessive particle size, they can be appropriately crushed; For materials with too small particle size, their conveying performance can be improved through granulation or agglomeration treatment.

4、 Strengthen equipment maintenance

1. Regularly clean the discharge outlet

Regularly clean the discharge outlet to avoid residue caused by material accumulation or adhesion. Compressed air or specialized tools can be used for cleaning to ensure unobstructed discharge ports.

2. Check the status of the chain and disc

The wear of chains or discs may cause uneven material transportation, thereby affecting the discharge effect. Regularly check the condition of the chain and disc, replace worn parts in a timely manner, and ensure the normal operation of the equipment.

3. Prevent pipeline blockage

Pipeline blockage may cause materials to be unable to reach the discharge port smoothly. Regularly check whether there is material adhesion or accumulation on the inner wall of the pipeline, clean it in a timely manner, and ensure the continuous transportation of materials.

5、 Adopting technology

1. Introduce pneumatic conveying assistance

Introduce a pneumatic conveying system near the discharge port to facilitate the smooth discharge of materials through the action of airflow, especially suitable for conveying powder or granular materials.

2. Use intelligent control system

Introduce an intelligent control system to monitor the real-time discharge of materials from the discharge port, and automatically adjust parameters such as chain speed and vibration frequency based on feedback to optimize the discharge effect.

3. Develop new materials

For materials with strong adhesion, materials with anti adhesive coatings (such as polytetrafluoroethylene coatings) can be used at the discharge outlet or on the inner wall of the pipeline to reduce material adhesion and lower residual risks.

6、 Case analysis

A certain chemical enterprise often experiences material residue at the discharge outlet when using a pipe chain conveyor to transport powder materials, resulting in a decrease in equipment efficiency. After analysis, it was found that the discharge port design was unreasonable and the material humidity was too high. The enterprise successfully solved the problem of material residue and improved the conveying efficiency by improving the shape of the discharge port, adding vibration devices, and drying the materials.

summary

The issue of material residue at the discharge outlet of the pipe chain conveyor involves multiple aspects such as equipment design, material characteristics, operation and maintenance. By optimizing the design of the discharge port, adjusting operating parameters, improving material characteristics, strengthening equipment maintenance, and adopting technology, material residue can be effectively reduced, conveying efficiency can be improved, and equipment failure rates can be reduced. In practical applications, targeted improvement measures need to be taken based on specific working conditions and material characteristics to ensure the stable operation of the pipe chain conveyor.