Mixed treatment method of waste plastics

Abstract

The invention provides a process method for recycling waste plastics. The treatment process of the waste plastics of the method is as follows: removing bulk metal, stone blocks and other substances which are difficult to crush, crushing, entering into a mixed treatment device and producing products. By adopting the technical scheme according to the invention, the various waste garbage plastics can be processed into various mixed plastic products by mixed treatment, thereby reducing the process steps of classifying of the plastics, cleaning and post-treatment in the original recycling treatment technology of the waste plastics and solving the original defects caused by landfill and burning of the garbage plastics; more important, the recycling rate of the waste plastics is improved, the circulating utilization is realized, the maximal utilization of limited resources is realized, the environmental damages caused by the waste plastics are effectively reduced and the environmental pollution caused by the original recycling technology is further solved.

Description

technical field [0001] The invention relates to the field of waste and old plastics treatment, in particular, it belongs to the field of recycling and utilization of waste and old plastics. Background technique [0002] A large amount of waste plastics will be produced in people's daily life and industrial production. Since the degradation cycle of plastics takes 100 to 300 years, if they cannot be disposed of in a timely and effective manner, the generation of these waste plastics will cause serious pollution to the environment and waste of resources. The problem of white pollution has long been valued by the government, and many effective policies have been introduced, such as reducing the use of disposable plastic bags and conducting centralized recycling. Therefore, a large number of recycling stations have appeared in our country, and many people make a living by recycling waste plastics. However, the value of recycled plastics is limited and the sources are scattered,...

AI Technical Summary

Problems solved by technology

[0004] 1. There are many types of plastics, and sorting and processing is a huge workload, and it cannot be automatically and accurately subdivided, which will produce a lot of waste plastics that cannot be classified and have no classification value and cannot be recycled.

[0005] 2. The cleaning process seriously pollutes water, and will also produce a series of follow-up work, such as dehydration, drying, etc.

[0006] 3. To recycle waste plastics into products, they need to be extruded and granulated before being used as raw materials for the production of products. After two plasticizing processes, it has a great impact on the properties of the plastics and reduces the performance of the products.

Among them, granulation can only be achieved by heating to the melting point of the plastic. The granulation process requires that the plastic must be drawn into wires and strips to realize automatic production. To form wires and strips, the plastic must be clean and stable in performance. Qualified pellets have high requirements for recycled plastics, and many plastics cannot be processed by this process because they cannot meet the requirements

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