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Purification and regeneration process and equipment of waste refrigerator plastic

A technology for plastics and refrigerators, which is applied in the field of purification and recycling of waste refrigerator plastics and equipment, which can solve the problems of poor recycling of plastics, and achieve the effects of solving poor purification grades, improving regeneration quality, and reducing pollution

Pending Publication Date: 2021-11-09
JIANGXI GREEN ECO MFG RESOURCE CYCLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, it is necessary to provide a purification and regeneration process and equipment for waste refrigerator plastics, so as to solve the technical problem of poor recycling effect of ABS, PS, and PP plastics in waste refrigerators in the prior art

Method used

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  • Purification and regeneration process and equipment of waste refrigerator plastic
  • Purification and regeneration process and equipment of waste refrigerator plastic
  • Purification and regeneration process and equipment of waste refrigerator plastic

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Embodiment Construction

[0028] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0029] See figure 1 , The purification and regeneration process of waste refrigerator plastics includes four major steps: S1 crushing and sorting, S2 dry sorting, S3 wet sorting and S4 purification and granulation.

[0030] Among them, step S1 includes three sub-steps: S11 extracts the refrigerant of the used refrigerator and removes the compressor of the used refrigerator. This step is to recover the refrigerant in the used refrigerator to avoid environmental pollution caused by refrigerant leakage. In addition, the compressor, as a high-value component, is generally disassembled and dispose...

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PUM

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Abstract

The invention relates to a purification and regeneration process of waste refrigerator plastic, which comprises the following steps: S1, crushing and sorting; S2, dry sorting; S3, wet sorting; and S4, purifying and granulating. By implementing the embodiment of the invention, the purification and regeneration process for the waste refrigerator plastic provided by the invention has the following beneficial effects that foam cotton is separated in advance by adopting a dry grinding-winnowing method in the S2, so that the pollution of the foam cotton to a solution medium in the subsequent wet sorting is reduced, and in the step S3, residual chloride ions (chlorine salt) and the foam cotton on the surface of the plastic are removed through multiple times of flotation system treatment, so that the plastic regeneration quality is improved, and the problems of low sorting efficiency and poor purification grade of existing waste refrigerator plastic are effectively solved.

Description

technical field [0001] The invention relates to the technical field of refrigerator waste treatment, in particular to a purification and regeneration process and equipment for waste refrigerator plastics. Background technique [0002] With the acceleration of the upgrading of electrical and electronic products, the amount of electronic waste in my country has risen sharply, and the amount of scrap is expected to reach 10 million tons per year in 2025. However, its green treatment process still needs to be developed. The maturity and promotion of any process is inseparable from the breakthrough of the corresponding key technical issues, and the breakthrough of any key technical issue cannot be separated from the identification and solution of the key scientific issues behind it. The complex structure and composition of e-waste restrict the popularization and application of its automatic dismantling equipment, which has become a key problem commonly encountered by the e-waste ...

Claims

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Application Information

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IPC IPC(8): B29B17/02B29B17/04
CPCB29B17/02B29B17/0404B29B2017/0248B29B2017/0217B29B2017/0452Y02W30/62Y02W30/52
Inventor 秦玉飞牛远航吕怀兴高风翔秦晓辉陈龙刘玉清董李鹏
Owner JIANGXI GREEN ECO MFG RESOURCE CYCLE
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