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Regeneration treatment method and device of electronic waste plastic

A technology of electronic waste and treatment method, applied in the direction of plastic recycling, mechanical material recycling, recycling technology, etc., can solve the problem of failure to realize efficient, economical and harmless sorting of electronic waste plastics, and the inability to realize efficient separation of electronic waste plastics Eliminate problems such as selection and low production efficiency, and achieve the effects of efficient and harmless recycling, low cost, and improved production efficiency

Active Publication Date: 2017-12-26
JIANGXI GREEN ECO MFG RESOURCE CYCLE
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

Therefore, the efficient sorting of electronic waste plastics cannot be realized by adopting the technical scheme proposed in the CN104511369 patent
In addition, plastics are processed in high-temperature liquid medium for a long time before flotation, which leads to low production efficiency and high cost
[0011] Therefore, the existing waste plastics sorting technology fails to achieve efficient, economical and harmless sorting of electronic waste plastics

Method used

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  • Regeneration treatment method and device of electronic waste plastic
  • Regeneration treatment method and device of electronic waste plastic

Examples

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Effect test

Embodiment 1

[0051] A recycling method for electronic waste plastics, such as figure 1 shown, including the following steps:

[0052] Step 1. Crushing and magnetic separation: Electronic waste plastics are crushed and electronic waste plastics with a particle size of less than 10 mm are selected for magnetic separation to separate magnetic metal materials from electronic waste plastics;

[0053] Step 2. Primary gravity separation: send the electronic waste plastics after magnetic separation to the cyclone for gravity separation, and separate the heavy component materials and light component materials, heavy component materials, non-magnetic metal materials and bromine-containing plastics; Light component materials are plastics with less metal impurities and bromine content,

[0054] Step 3. Secondary gravity separation: Send the light component materials into a cyclone or a clear water tank for secondary gravity separation to separate polyene plastics and styrene plastics;

[0055] Step ...

Embodiment 2

[0070] A regeneration treatment device for electronic waste plastics, such as figure 2 As shown, it includes primary crushing mechanism, magnetic separation mechanism, primary gravity separation mechanism (cyclone), secondary gravity separation mechanism (cyclone or clear water pool), secondary crushing mechanism, flotation mechanism, manufacturing The material is crushed by the primary crushing mechanism and sent to the magnetic separation mechanism for sorting. The magnetically separated material is sent to the primary gravity separation mechanism and the secondary gravity separation mechanism to obtain polyolefin plastics and benzene. Vinyl plastics are then sent to the secondary crushing mechanism for crushing, and then sent to the flotation mechanism for foam flotation, and the slurry obtained by flotation is sent to the granulation mechanism.

[0071] Both the primary crushing and the secondary crushing use plastic crushers, the particle size requirement of the primary ...

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Abstract

The invention discloses a regeneration treatment method and device of electronic waste plastic. The regeneration treatment method comprises the steps of step I, crushing and magnetic separation: smashing electronic waste plastic, and carrying out magnetic separation; step II, primary gravity separation: carrying out separation to obtain a heavy-component material and a light-component material; step III, secondary gravity separation: separating out polyene plastic and styrene plastic; step IV, foam flotation: carrying out foam flotation on polyene plastic, separating out PP and PE, carrying out foam flotation on styrene plastic, and separating out ABS and PS; and step V, regeneration and granulation: carrying out drying, mixing, plasticizing and granulation, so as to obtain PP regeneration particles, PE regeneration particles, ABS regeneration particles and PS regeneration particles. According to the regeneration treatment method, magnetic metals, nonmagnetic metals, PP, PE, ABS and PS are accurately separated, and compared with a traditional technology which can only separate a small part and is serious in waste and complex in technology, the regeneration treatment method has the advantages that plastic and metals can be accurately sorted, the treatment effect is good, and purity of a product is high.

Description

technical field [0001] The invention relates to the technical field of recycling and processing of electronic waste, in particular to a method and device for recycling and processing electronic waste plastics. Background technique [0002] With the development of our country's social economy, the amount of scrapped electronic and electrical products is increasing year by year. Since waste electronic and electrical products contain a large amount of renewable resources such as gold, silver, copper, and plastic, the research on their recycling has been favored by domestic and foreign researchers. Widely concerned, among them, plastics are a kind of raw materials with a large content in electrical and electronic products. How to use plastics in electronic waste with high value and rationally has become one of the problems that need to be solved urgently in the recycling of waste electronic and electrical products. [0003] At present, there are usually two methods for the utili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/00B29B17/02B29B17/04
CPCB29B17/00B29B17/02B29B17/04B29B2017/0203Y02W30/62Y02W30/52
Inventor 许开华鲁习金
Owner JIANGXI GREEN ECO MFG RESOURCE CYCLE
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