Waste plastic cleaning and sorting system

Abstract

The invention discloses a waste plastic cleaning and sorting system. The waste plastic cleaning and sorting system comprises a first shredding machine, a pre-washing machine, a three-group sorting device, a crusher, a centrifugal machine and a cyclone separation device; the first shredding machine is used for shredding waste plastic; an input end of the pre-washing machine is connected with the first shredding machine and is used for receiving the shredded waste plastic; the three-group sorting device comprise a feeding screw, a mixing tank, a stirrer, a precipitator, a heavy slag filling machine, a first slag extracting machine and a light material filling machine; an input end of the crusher is connected with an output end of the light material filling machine; an input end of the centrifugal machine is connected with an output end of the crusher; the cyclone separation device comprises a mixing water tank, a swirler, a sedimentation tank, a second slag extractor and a friction cleaning machine; an input end of the mixing water tank is connected with an output end of the centrifugal machine; an output end of the swirler is respectively connected with the mixing water tank, the sedimentation tank and the second slag extractor; the precipitation tank is connected with the friction cleaning machine; and the friction cleaning machine is used for cleaning and outputting PP/PE (polyethylene) plastic. According to the waste plastic cleaning and sorting system, the automatic recovery is achieved, the plastic recovery rate is improved, and the operation is stable.

Description

technical field [0001] The invention relates to the technical field of waste plastic recycling systems, in particular to a waste plastic cleaning and sorting system. Background technique [0002] Plastics bring convenience to life, but they are also harmful: toxic gases are produced when plastics are burned; plastics cannot be degraded naturally, and waste plastics will not only occupy a large amount of land when they are landfilled with garbage, but the occupied land will not be restored for a long time, affecting the quality of the land. Sustainable utilization; discarded waste plastic products are swallowed by animals as food, resulting in animal death. [0003] Based on protecting the environment, people recycle urban municipal garbage or waste plastics from paper mills. However, the existing waste plastic sorting system mainly has the following disadvantages: first, some processes require a large amount of manual participation in the sorting, which affects the health o...

AI Technical Summary

Problems solved by technology

However, the existing waste plastic sorting system mainly has the following disadvantages: first, some processes require a large amount of manual participation in the sorting, which affects the health of sorting personnel; second, the investment cost is large, and the operation energy consumption is large and the cost is high; third, The process is complicated and requires high professional level of operators; 4. The stability of the process is not good, and the production is easily interrupted; 5. Some processes have problems of incomplete sorting and low recycling rate

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