Is there any necessary to set one melt pump on a waste plastic recycling granulation line?

The use of a melt pump in a plastic recycling granulation line is not always necessary, but it can provide several advantages in certain situations. A melt pump is a device used to control the flow rate of molten plastic, and it can offer the following benefits:

1. Consistent Flow: A melt pump ensures a steady and consistent flow rate of molten plastic, which can be important for maintaining the quality and consistency of the granules being produced.
2. Pressure Stabilization: Melt pumps help stabilize the pressure in the extrusion process, which can enhance the overall efficiency and productivity of the granulation line.
3. Filtration Enhancement: Melt pumps often include filtration systems that can remove contaminants or impurities from the molten plastic, leading to improved product quality.
4. Downstream Equipment Protection: By providing a consistent flow and pressure, a melt pump can help protect downstream equipment, such as extruders or pelletizers, from surges or fluctuations in the process.

However, it's important to note that not all plastic recycling granulation lines require a melt pump. The need for a melt pump depends on various factors, such as the type of plastic being processed, the desired quality of the granules, and the specific requirements of the production line. In some cases, other methods like screw design modifications or extruder control systems may be sufficient to achieve the desired results.

Ultimately, the decision to include a melt pump in a plastic recycling granulation line should be based on a thorough assessment of the specific production requirements, cost considerations, and the potential benefits it offers. Consulting with experts in the field of plastic recycling or process engineering can provide valuable insights into whether a melt pump is necessary for your particular application.