1. Photoelectric-waste sorting technology

Photoelectric-waste sorting technology sorts and processes plastics through the different absorption rates of plastics to X-rays. Photoelectric sorting technology has significant advantages and will not damage waste plastics. During the sorting and processing operation, waste plastics are separated while moving. By applying photoelectric sorting technology, labor costs can be reduced and the efficiency of waste plastic processing can be improved. Photoelectric sorting technology includes X-ray technology and fluorescent X-ray technology. The difference in the application of the above technologies lies in the mechanism of action. For X-ray technology, X-rays can be converted into electrical signals, and the type of plastics can be judged through electrical signals. Plastic products can be blown off by compressed air to achieve the sorting effect. Fluorescent X-ray technology irradiates X-rays on plastics to generate fluorescent X-rays. Use spectroscopic processing technology to test the composition of plastics and sort and process plastic products. Generally speaking, photoelectric sorting technology mainly relies on the different reactions of plastics to X-rays to carry out sorting and processing operations.

2. Color - waste sorting technology

Color - waste sorting technology, sorting and processing waste plastics by different colors. The waste plastics are passed through multiple color filters, and then converted to different brightness, and the calculated current values ​​are classified and processed to ensure the waste plastic sorting effect. In essence, color sorting technology combines color recognition devices and material separation devices, and uses light to distinguish colors through the device reactions of different waste plastics, separates different types of waste plastics, and realizes sorting operations. The application scope of color sorting technology is limited. Only when the color difference of waste plastics is large can this sorting technology be applied.

3. Wind power - waste sorting technology

When sorting and processing waste plastics, using wind power - waste sorting technology, it is necessary to crush the waste plastics to ensure that the processed particles are basically uniform. Due to the uniformity of particles, the wind power sorting effect is greatly affected. After the plastic is crushed, it is placed in the sorting device for spraying. The wind device is operated in reverse and horizontal directions. The air flow resistance and gravity overlap of the plastic are different. At this time, the plastic falls with a large deviation, which can effectively sort the waste plastic. When applying wind sorting technology, the technical mechanism should be mastered. The crushing degree and particle uniformity of waste plastics have a great impact on the sorting results. At the same time, wind sorting technology uses the density difference of waste plastics to form different combined forces to achieve the purpose of sorting. When the density of waste plastics is close and the shape is irregular, wind sorting technology cannot be applied.

4. Wind shaker-garbage sorting technology

With the development of wind sorting technology, wind shaker-garbage sorting technology has gradually emerged. This technology ensures that waste plastics are layered according to density through wound surface vibration and rising air flow. Wind shaker sorting technology can ensure the uniformity of plastic particles. Generally speaking, when applying wind-driven shaking table sorting technology, air flow is blown out through the pores under the bed, and with the help of gravity, large-size and high-density particles are concentrated in the lower layer; small-size and low-density particles are concentrated in the upper layer. Under the action of bed friction and vibration acceleration, the lower-layer particles move upward, and the upper-layer particles move to the lower side, thereby separating plastics of different densities. At the same time, compared with conventional wind-driven sorting technology, wind-driven shaking table sorting technology can be applied to irregularly shaped plastics.

5. Electromagnetic electrostatic-garbage sorting technology

Electromagnetic electrostatic-garbage sorting technology can achieve separation operation through the interaction of polar waste plastics and electric fields. The principle of this technology is to use high voltage electricity to ensure that waste plastic particles are charged, and under the action of the electrode electric field, charged particles can be separated. In the treatment of waste plastics with electrodes, electromagnetic electrostatic sorting technology can be applied, especially in the sorting of polyvinyl chloride. When applying electromagnetic electrostatic sorting technology, the technical application advantages are relatively high, such as the sorting operation will not produce sewage, and plastics of the same density can also be sorted and processed. However, electromagnetic electrostatic separation technology also has its shortcomings. When the waste plastics have complex components, multiple separation processes are required. Electromagnetic electrostatic separation technology is a dry method that does not pollute the environment and has good working conditions, so the technology has a wide range of applications.