Introduction of plastic recycling machine

Plastic recycling machine is a general term for machinery that recycles waste plastics (daily life and industrial plastics) for recycling treatment. Plastic pyrolysis technology is still only in the experimental research stage, thus plastic recycling machine mainly refers to waste plastic recycling and granulation equipment, including pretreatment equipment and granulation equipment.

Here is the content:

• Principle

• Heating and cooling equipment

Principle

The traditional way of waste plastics treatment is landfill and incineration. Landfill not only needs to occupy a large number of sites but if the seepage control measures are not appropriate. It is very easy to make the leachate into the surrounding surface water or seep into the soil, posing a serious long-term threat to the environment around the landfill and the health of residents. Direct incineration of waste plastics may produce dioxins to pollute the atmosphere. And further enrichment of toxic and harmful substances in the bottom ash after incineration, which still needs to be landfilled or further harmless treatment. Therefore, the recycling of waste plastics after sorting is more advantageous, as different plastics can be collected and sorted into granules by a plastic recycling machine and then used as recycled plastics. Plastics can be reduced to monomers through pyrolysis, plastic recycling machine, and other technologies to participate in polymerization again, thus realizing the recycling of resources. The recycling of waste plastics is environmentally friendly, and at the same time, the recycling of waste plastics can be used twice to save resources.

Heating and cooling equipment

All that is necessary for the plastic extrusion process to proceed is heating and cooling.

(1) Plastic recycling machine is now usually used in the extrusion machine electrically heated, divided into resistance heating and induction heating. The heating sheet is installed in the body, neck, the head of each part. The heating device heats the plastic in the barrel from the outside to warm it up to the temperature required for the process operation.

(2) The cooling device of the plastic recycling machine should be set up. To ensure that the plastic is within the temperature range required for the process. The temperature should not be too high or too low. That is to say, to eliminate the excess heat generated by the shear friction of the rotating screw. The temperature is too high to make the plastic decomposition, burning, or molding difficult. Cylinder cooling is divided into the water - of cooled and air-cooled two types. Generally speaking, small and medium-sized extruders are more suitable for air cooling, and large ones are mostly water-cooled or a combination of two forms of cooling. Screw cooling is mainly used for central water cooling. The purpose is to increase the conveying speed of solid materials, stabilize the amount of glue, improve product quality; And cool at the hopper. One of the functions is to strengthen the role of solid material transportation, to prevent plastic particles due to heating and sticky blockage. The second role is to strengthen the role of solid material transportation, to prevent plastic particles due to rising temperature and blockage of the material port, and to ensure the normal work of the conveying part.

ACERETECH is a professional manufacturer of plastic recycling machines, focusing on the research and development of plastic recycling technology, providing plastic recycling, cleaning, and re-granulation equipment and solutions. We provide our customers with good technical support and sound after-sales service based on the principle of "customer first, integrity first".