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Preparation method for recycled plastic particles

A technology for recycling plastic particles and plastics, applied in plastic recycling, mechanical material recycling, recycling technology, etc., can solve the problems of resource waste and pollution control costs, and achieve the goal of reducing production costs, reducing softening time, and reducing time. Effect

Inactive Publication Date: 2016-12-14
TIANJIN HUAQING BAISHENG PLASTIC INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the continuous progress of polymer synthesis technology, the plastic industry has developed rapidly, and more and more plastic products have become an indispensable substance in people's lives, but it has also brought us a large number of waste plastics. The white polluting garbage formed, and a large amount of waste of resources and pollution control costs

Method used

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with embodiment:

[0018] A kind of preparation method of the regenerated plastic granule of the present invention, comprises the following steps:

[0019] (1) Manually sort and classify the collected waste plastics, and the sorting methods can be visual method, specific gravity method, and strength method;

[0020] (2) washing the sorted waste plastics with water, then drying, and controlling the moisture content of the materials to 1%-4%;

[0021] (3) Putting the waste plastics prepared in step (2) into a plastic shredder for pulverization;

[0022] (4) Put the crushed waste plastics, heavy calcium carbonate, and organic solvent into a plastic granulator, and the organic solvent and the waste plastics undergo a catalytic reaction to slowly soften and recycle the waste plastics;

[0023] (5) Input the softened waste plastics into the screw electric heating melting machine for heating, so as to speed...

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Abstract

The invention provides a preparation method for recycled plastic particles and belongs to the technical field of plastic recycling. The preparation method comprises the following steps that waste plastic is classified, washed, dried and smashed and then put into a plastic granulator together with heavy calcium carbonate and an organic solvent, catalytic reaction is conducted between the organic solvent and the waste plastic, and the waste plastic is slowly softened; then the softened waste plastic is input into a screw type electric heating melting machine to be heated, and the softening speed of the waste plastic is increased; and the material is subjected to melt blending through a double-screw extruder, and extruding and granulating are conducted. According to the preparation method for the recycled plastic particles, the waste plastic is subjected to catalytic reaction through the organic solvent at first and then subjected to physical heating plasticizing reaction, and the waste plastic softening time is shortened; meanwhile, the molecular structure in the plastic is protected from being changed by the organic solvent; and in addition, extrusion forming is adopted, thus, pretreatment does not need to be conducted, the forming process time can be significantly shortened, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of plastic recycling, in particular to a method for preparing recycled plastic particles. Background technique [0002] In recent years, with the continuous progress of polymer synthesis technology, the plastic industry has developed rapidly, and more and more plastic products have become an indispensable substance in people's lives, but it has also brought us a large number of waste plastics. Formed white polluting garbage, and produced a large amount of waste of resources and pollution control costs. To solve this problem, we recycle waste plastics. Contents of the invention [0003] The present invention aims at the above technical problems and provides a method for preparing recycled plastic particles. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: a method for preparing recycled plastic granules, comprising the following steps: [0005...

Claims

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Application Information

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IPC IPC(8): B29B17/00B29B17/02B29B17/04B29B9/06
CPCB29B9/06B29B17/00B29B17/02B29B17/04B29B2017/001B29B2017/0015B29B2017/0203Y02W30/52Y02W30/62
Inventor 吴进波吴昱铮
Owner TIANJIN HUAQING BAISHENG PLASTIC INDAL