Plastic film granulator is a kind of equipment commonly used to convert waste plastic film into granular materials. Its working principle mainly includes the following steps: material feeding, melting, extrusion, cutting and cooling.
First, the waste plastic film is conveyed to the inside of the granulator through the material feeding system. The feeding system usually includes a feeder, a conveyor belt and a crusher. The crusher breaks the large pieces of plastic film into small particles for subsequent processing.
Next, the small particles of plastic film are fed into the melting system. The melting system consists of a heater, a screw and a barrel.
The heater heats the plastic particles to the melting temperature, making them soft and sticky. The screw is responsible for pushing the molten material forward and providing sufficient pressure.
During the melting process, the material is pushed to the extruder head. The extruder head usually includes a filter and a die. The filter is used to remove impurities and particles that are insoluble in plastic to ensure the quality of the particles. The die determines the shape and size of the particles.
Once through the extruder head, the molten plastic film enters the cutting system. The cutting system usually includes a rotary knife and a cutting device. The rotary knife cuts the molten material into the required particle length. The cutting device is responsible for cutting the particles from the knife edge and keeping the particles neat and consistent.
Finally, the cut plastic particles are cooled by the cooling system. The cooling system usually includes air cooling and water cooling. Air cooling sprays cold air on the particles to cool and solidify them quickly. Water cooling places the particles in cold water to further reduce their temperature.
PP PE Recycling and Pelletizing
The entire granulation process is carried out continuously. Through continuous feeding, melting, extrusion, cutting and cooling, the waste plastic film is finally converted into granular materials. These granules can be reused to make new plastic products.
It is worth noting that when operating the plastic film granulator, attention should be paid to safety and environmental protection. Reasonable setting and maintenance of equipment should ensure the safety of operators. At the same time, for the treatment of waste materials, environmental protection laws and regulations should be observed, and appropriate treatment methods should be adopted to reduce the impact on the environment.
In summary, the plastic film granulator converts waste plastic film into granular materials through the steps of material feeding, melting, extrusion, cutting and cooling. This process requires strict operation and environmental awareness to ensure safety and environmental sustainability.
