1. Overview of PP waste recycling granulation
Polypropylene (PP), as one of the five major general-purpose plastics, is widely used in packaging, automobiles, home appliances and other fields, and the resulting PP waste is also increasing. Converting PP waste into recycled granules through recycling granulation technology can not only reduce environmental pollution, but also create considerable economic benefits. High-quality PP recycled granules can be widely used in injection molding, extrusion, blow molding and other processing fields to achieve resource recycling.
2. Technical features of ATE parallel twin-screw plastic granulator
The ATE parallel twin-screw plastic granulator produced by ACERETECH is an efficient equipment developed for the field of plastic recycling and modification, especially suitable for the recycling and granulation of PP waste. The equipment integrates a number of advanced technologies:
1. Core power system: using internationally renowned brand motors and high-precision gearboxes to ensure stable and reliable operation of the equipment, stable power output and high energy efficiency.
2. Side feeding system: The unique side feeding design can adapt to different forms of PP waste, including sheets, films, fibers, etc. The feeding is uniform and stable, effectively improving production efficiency.
3. Zone heating control system: The barrel is divided into sections and the temperature is independently controlled. The temperature of each section can be accurately adjusted according to the characteristics of the PP material to ensure uniform melting and avoid thermal degradation.
4. Non-stop piston type filter: The filtration system can continuously replace the filter screen during the production process without stopping the machine, greatly improving production efficiency and reducing scrap rate.
III. PP waste granulation process
The typical process flow of ATE parallel twin-screw granulator to treat PP waste is as follows:
1. Pretreatment stage: After pretreatment such as classification, cleaning, and crushing, the PP waste is evenly fed into the extruder through the side feeding system.
2. Melt extrusion stage: PP waste gradually melts under the shearing and mixing action of the twin screws, and the cast copper and aluminum heater provides fast and uniform heating, with energy consumption reduced by 15-20% compared with traditional heaters.
3. Filtration and purification stage: The melt passes through a non-stop piston filter to remove impurities and unmelted particles to ensure the quality of the recycled particles.
4. Pelletizing and molding stage: The underwater pelletizing system is adopted. After the melt is extruded through the die head, it is immediately cut by the rotating blade and cooled in the water to form uniform particles.
5. Drying stage: Vibration Dry and centrifugal dehydrator are used in combination to efficiently remove moisture from the surface of the particles, and the moisture content can be controlled below 0.5%.
6. Finished product collection stage: The high-quality particles after drying are collected through the silo, and the silo light tube design facilitates the observation of the material status and working conditions.
IV. ATE granulator test performance
In the actual workshop test, the ATE parallel twin-screw granulator showed the following advantages in processing PP waste plastics:
1. High efficiency and stability: the equipment runs smoothly, the output can reach 300-500kg/h (depending on the model), and it can work continuously for 72 hours without failure.
2. Energy saving and environmental protection: compared with traditional single-screw equipment, energy consumption is reduced by about 25%, and noise is controlled below 75 decibels.
3. Convenient operation: the humanized design makes the equipment easy to operate, and the cast copper and aluminum heaters are easy to disassemble and assemble, which greatly shortens the maintenance time.
4. High quality of finished products: the produced PP recycled particles have uniform appearance, good color, stable melt index, and mechanical properties close to the level of new materials.
V. Conclusion
ACERETECH's ATE parallel twin-screw plastic granulator provides an efficient and reliable solution for PP waste recycling with its advanced technical configuration and excellent performance. This equipment not only realizes the high-value utilization of PP waste, but also reduces production costs through energy-saving design and intelligent control. It is an ideal choice for upgrading the plastic recycling industry. With the continuous improvement of environmental protection requirements and the development of circular economy, such high-performance granulation equipment will play an increasingly important role in the field of plastic recycling.
Click on the video below to view the factory test and learn more.
