Development of screening and recycling technology

2022-08-16
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Development of hybrid plastic screening and recycling technology

Mitsubishi Electric has successfully developed a hybrid plastic screening and recycling technology independently, which can realize the "horizontal self circulation (recycling from home appliances to home appliances)" of home appliances. In the past, it was difficult to reuse the "mixed plastic" made of waste household appliances after crushing. Using this technology, polypropylene can be automatically screened from "mixed plastics" and recycled with high purity, and then reused in household appliances. The company plans to continue to develop the technology of recycling all waste household appliance plastics in the future

the technology developed this time can formulate several policies to promote the implementation and utilization of new materials industry. Polypropylene with a large amount of high purity can be automatically screened from "mixed plastics". By making its quality reach the level required by household appliances, it can be reused in household appliances. The company will also continue to focus on the technological development of automatic screening of polystyrene and ABS (acrylonitrile butadiene styrene copolymer)

Plastic Recycling Technology in order to efficiently recover polypropylene from mixed plastics, it consists of three processes: "micro crushing process", "high-precision screening process" and "synthesis process". "Micro crushing process" is the preliminary treatment of "high-precision screening process". In order to improve the screening accuracy, 5 The goal is to remove the grinding damage layer. The Rockwell hardness indentation is very small. The plastic should be uniformly crushed to about 8mm. "High precision screening process" uses dry and wet screening methods and self-developed foreign matter removal devices to recover polypropylene with high purity. "Synthesis process" refers to adding modifier and making it form spherical particles to ensure the quality of polypropylene after screening

in the future, an equipment that can recover 1000 tons of polypropylene from mixed plastics every year will be built and put into operation in the super cycle systems factory. By 2008, it is planned to increase the production capacity of the plant to 4000 tons of plastic, including polypropylene, through the introduction of polystyrene and ABS automatic screening technology

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