The process flow of the roller extrusion granulator production line mainly includes the following key steps:
1. Raw material pretreatment
Raw material crushing: The raw material is sent to a crusher and crushed to a particle size suitable for granulation, ensuring uniformity of the raw material and facilitating subsequent extrusion granulation.
Screening: Use a screening machine to remove impurities and oversized particles from the raw materials, ensuring consistency and purity of the raw materials.
2. Raw material mixing (optional)
Mix different raw materials in a certain proportion as needed to ensure the stability of the product composition after granulation.
3. Humidity adjustment (optional)
Some raw materials may need to be adjusted for humidity before extrusion to improve the extrusion effect. The raw materials can reach the best extrusion state through the spray system or by mixing water.
4. Roll extrusion granulation
Feed: Feed the pre treated raw materials into the feed inlet of the roller extrusion granulator.
Squeezing: The raw material passes between two pairs of rotating rollers and is compressed into strips or sheets under high pressure.
Granulation: The strip or sheet material that comes out of the roller extruder is immediately fed into the granulator and cut into particles of a predetermined size.
5. Crushing and screening
Crushing: For larger lumps that may occur during the extrusion process, use a crusher to break them into smaller particles.
Screening: Use a screening machine to select particles that meet the particle size requirements, remove unqualified particles, and ensure the consistency of product particle size.
6. Drying (optional)
If the moisture content in the raw materials or granulation process is high, it may be necessary to remove excess moisture through a dryer to improve the stability of the particles.
7. Cooling (optional)
After granulation, the particles may need to be cooled by a cooling system to prevent deformation or adhesion caused by high temperatures.
8. Packaging
Finished product inspection: Conduct quality inspection on the granules after granulation to ensure that the product meets the standards.
Automatic packaging: Use an automatic packaging machine to weigh and package qualified particles, preparing them for storage or shipment.
9. Control and Monitoring
Automation control: The entire production line is usually equipped with advanced PLC control systems and automation instruments to monitor and adjust key parameters in the production process, such as raw material ratio, extrusion pressure, particle size, etc., to ensure efficient operation of the production line and product quality.
Through the above process flow of the roller extrusion granulator production line, various powdered or fine-grained materials can be efficiently converted into high-strength, uniformly sized particles, suitable for multiple industries such as chemical, fertilizer, pharmaceutical, and food.
