CN105921493A - Method and device of recycling and reusing scrapped circuit board - Google Patents
Method and device of recycling and reusing scrapped circuit board Download PDFInfo
- Publication number
- CN105921493A CN105921493A CN201610408906.6A CN201610408906A CN105921493A CN 105921493 A CN105921493 A CN 105921493A CN 201610408906 A CN201610408906 A CN 201610408906A CN 105921493 A CN105921493 A CN 105921493A
- Authority
- CN
- China
- Prior art keywords
- wiring board
- scrapping
- pulverizer
- recycling
- separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004064 recycling Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003365 glass fiber Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 14
- 238000010298 pulverizing process Methods 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 235000012054 meals Nutrition 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 14
- 238000011161 development Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method of recycling and reusing a scrapped circuit board. The method comprises the following steps: (1) a pulverizer is adopted to pulverize the scrapped circuit board, and a separator is adopted to separate copper-containing material from glass fiber in the pulverized material; (2) the copper-containing material is classified by a classifier, the material with the mesh less than 30 enters the small pulverizing chamber of the pulverizer to be pulverized, and the material with the mesh greater than 30 enters an electrostatic separator; and (3) the electrostatic separator separates copper powder from the glass fiber, the separated copper powder is recycled and reused, and the glass fiber enters a nonmetal recycling device via an auger conveyor for harmless treatment. According to the invention, the total recovery rate and purity of copper are increased, and the method can be directly applied to industrial production, so that environment pollution is lessened, and larger economic benefit is generated; in addition, the production flow is short, the technology is simple, the energy consumption is low, and the applicability is wide.
Description
Technical field
The invention belongs to field of waste recycle, be specifically related to a kind of recycling method scrapping wiring board and
Its device.
Background technology
Printed substrate (being called for short PCB) is the important component part of electronic product, recently as electronics work
The development of industry, printed substrate production development is extremely rapid.In printed substrate process, usually can produce
Giving birth to some to scrap or underproof wiring board intermediate products, these intermediate products scrapped obtain cupric after crushing
Dust, copper content is up to 20～30%, and remaining organic material is mainly glass fibre, if by straight for these waste materials
Connect burning, fill or abandon, not only waste resource, also environment can be brought serious pollution.China is one
Shortage of resources, the populous nation of vulnerable environment, water resource and pollution situation thereof are the severeest, without prosperity
The low-cost resource during industrialization of the country and environmental carrying capacity, be unable to undergo the resource consumption that traditional economy development pattern brings
And environmental pollution.Realized the recycling of PCB copper-bearing waste material by industrialization means, economize on resources, protect
Retaining ring border, it is achieved the sustainable development of IT industry, is a major issue with strategic importance.
In wiring board production process, substantial amounts of wiring board of scrapping, the usual cupric of this kind of printed circuit board (PCB) can be produced
Measuring about 20-30%, remaining is epoxy glass fiber plate composition.If this waste material is not used, both cause money
The serious waste in source, causes severe contamination to environment again.As the components and parts that electronic product is most basic, scrap wire
The harmlessness disposing of road plate or resource recycle becomes crucial.At present for the process skill of waste printed circuit board
Art mainly includes pyrometallurgy, hydrometallurgy, bioleaching and mechanical separation.Mechanical approach is to work as
Most common method in pre-treatment discarded circuit board, as patent CN1919482A discloses a kind of cryogenic vacuum heat
Solve waste printed wiring board preprocessing method；Patent CN1919483A discloses a kind of abandoned printed circuit board combination
Formula processing method；Patent CN102671916A discloses waste printed circuit board and processes recovery process；But above-mentioned existing skill
Art still deposits problems with: disintegrating apparatus is required height, waste printed circuit board need to be crushed to relatively low particle size range, point
Separating process is complicated, and energy consumption is high, the longest, easily causes secondary pollution, and the rate of recovery of copper is low, and purity is low,
The shortcomings such as the requirement index that can not meet manufacturing enterprise.
Summary of the invention
The present invention solves separating technology complexity in prior art, energy consumption length high, time-consuming, easily cause secondary dirt
Dye, the problem that the rate of recovery is low, purity is low of copper, propose a kind of recycling method scrapping wiring board and
Device.
The invention provides a kind of recycling method scrapping wiring board, plan integrated treatment unit, right
Waste printed circuit board crushes the dust after pulverizing and carries out electrostatic separation, obtains high-load copper powder and glass fibre, after separation
Copper powder be used directly for producing copper-bath etc., after carrying copper, remaining organic impurities carries out innoxious burning
Burn, it is achieved that " zero-emission " of printed circuit board (PCB) and recycling of copper resource.
Present invention also offers a kind of recycling device scrapping wiring board, simple to operation, can realize
Automated production, requires low to disintegrating apparatus, has that production procedure is short, technique is simple, energy consumption is low, adaptability
Wide advantage.
For achieving the above object, the present invention is by the following technical solutions:
The first aspect of the invention is to provide a kind of recycling method scrapping wiring board, including following step
Rapid:
(1) will scrap wiring board uses pulverizer to pulverize, and the separated device of material after pulverizing is the material of cupric
Separating with glass fibre, wherein, the boosted machine of material of cupric enters grader, and glass fibre is through spiral
Conveyer enters nonmetal retracting device；
(2), after the classification of the material of cupric classified machine, enter the little pulverizing chamber of pulverizer less than the material of 30 mesh and carry out again
Pulverize, enter electrostatic separator more than the material of 30 mesh；
(3) copper powder is separated by electrostatic separator with glass fibre, and the copper powder after separation carries out recycling, glass
Fiber enters nonmetal retracting device through conveying worm, carries out harmless treatment.
Further, the wiring board copper content of scrapping in described step (1) is 25-35wt%, and remaining is epoxy
Glass fibre.
Further, the raw meal particle size after the employing pulverizer in described step (1) is pulverized is more than 20 mesh.
Further, the harmless treatment in described step (3) is burning disposal or landfill disposal.
Further, the incineration temperature of described burning disposal is 100-150 DEG C, and the burning time is 1-3 hour.
The second aspect of the invention is to provide a kind of recycling device for scrapping wiring board, including connecting successively
Pulverizer, separator, elevator, grader, electrostatic separator and the apparatus for recovering metal connect, described separation
The blanking device of device is connected with nonmetal retracting device by the first conveying worm, and the coarse fodder of described grader goes out
Mouth is connected with pulverizer, and described electrostatic separator is connected with nonmetal retracting device by the second conveying worm
Connect.
Further, the coarse fodder outlet of described grader is connected with the little pulverizing chamber of pulverizer.
Further, described separator is cyclone separator.
Further, described grader includes 30 mesh classifying screens, 40 mesh classifying screens and 50 mesh classifying screens.
Further, also include for controlling pulverizer, separator, elevator, grader and electrostatic separator
The automatic control system run.
The present invention uses technique scheme, compared with prior art, has the following technical effect that
A kind of recycling method scrapping wiring board of the present invention, is reclaimed the copper in this waste material, not only
Alleviate environmental pollution, and create bigger economic benefit；The recovery simultaneously using integrated treatment is the most sharp
With device, waste printed circuit board is crushed the dust after pulverizing and carries out electrostatic separation, obtain copper powder and glass fibre, copper
Overall recovery more than 99%, content is more than 88%, meets the demand parameter of manufacturing enterprise, has good
Market efficiency；Compared with prior art, have that production procedure is short, technique is simple, energy consumption is low, wide adaptability
Advantage；The copper-bath etc. that copper powder after separation can produce, after carrying copper, remaining organic impurities carries out harmless
Change and burn, it is achieved that " zero-emission " of printed circuit board (PCB) and recycling of copper resource.
Accompanying drawing explanation
Fig. 1 is the structural representation of the recycling device scrapping wiring board of the present invention；
Wherein, 1-discarded circuit board, 2-pulverizer, 3-seperator, 4-the first conveying worm, 5-elevator,
6-grader, 7-coarse fodder exports, 8-electrostatic separation machine, 9-apparatus for recovering metal, 10-the second conveying worm,
The nonmetal retracting device of 11-.
Detailed description of the invention
Below by specific embodiment, the present invention is carried out detailed and concrete introduction, so that being better understood from this
Bright, but following embodiment is not limiting as the scope of the invention.
As it is shown in figure 1, the present embodiment provides a kind of recycling device for scrapping wiring board, including depending on
The pulverizer 2 of secondary connection, separator 3, elevator 5, grader 6, electrostatic separator 8 and metal recovery dress
Putting 9, the blanking device of separator 8 is connected with nonmetal retracting device 11 by the first conveying worm 4,
The coarse fodder outlet 7 of grader 6 is connected with pulverizer 2, and electrostatic separator 8 is by the second conveying worm 10
It is connected with nonmetal retracting device 11.
Wherein, the coarse fodder outlet of grader is connected with the little pulverizing chamber of pulverizer；Separator is cyclone separator；
Grader includes 30 mesh classifying screens, 40 mesh classifying screens and 50 mesh classifying screens；Also include for control pulverizer,
The automatic control system that separator, elevator, grader and electrostatic separator run.
The recycling method scrapping wiring board of the present embodiment, comprises the following steps:
(1) will scrap wiring board 1 to enter pulverizer 2 and pulverize, the material after pulverizing enters separator 3, point
Material and glass fibre from 3 cuprics of device separate, and the material of cupric enters grader through elevator 5
6, glass fibre enters nonmetal retracting device 11 through the first conveying worm 4；
(2), after the classification of classified machine 6, coarse fodder enters the starch of pulverizer 2 through coarse fodder outlet 7 (less than 30 mesh)
Broken room is pulverized again, enters electrostatic separator 8 more than the material of 30 mesh；
(3) electrostatic separator 8 can separate copper powder with glass fibre, and the copper powder after separation enters metal recovery dress
Putting 9 to reclaim, glass fibre enters nonmetal retracting device 11 through the second conveying worm 10, then enters
Row harmless treatment.
Wherein, wiring board 1 copper content scrapped by the raw material in step (1) is 25-35wt%, and remaining is epoxy glass
Glass fiber；Raw meal particle size after employing pulverizer 2 in step (1) is pulverized is more than 20 mesh；Step (3)
In harmless treatment be burning disposal or landfill disposal；Preferably burning disposal, the incineration temperature of burning disposal is
100-150 DEG C, the burning time is 1-3 hour.
The recycling method scrapping wiring board of the present invention, uses the recycling dress of integrated treatment
Put, waste printed circuit board is crushed the dust after pulverizing and carries out electrostatic separation, obtain copper powder and glass fibre, copper total
The rate of recovery is more than 99%, and content is more than 88%, meets the demand parameter of manufacturing enterprise, not only alleviates environment
Pollute, there is good market efficiency simultaneously.
Being described in detail the specific embodiment of the present invention above, but it is intended only as example, the present invention is also
It is not restricted to particular embodiments described above.To those skilled in the art, any the present invention is carried out
Equivalent modifications and substitute the most all among scope of the invention.Therefore, without departing from the spirit of the present invention and model
Enclose lower made impartial conversion and amendment, all should contain within the scope of the invention.
Claims (10)
1. the recycling method scrapping wiring board, it is characterised in that comprise the following steps:
(1) will scrap wiring board uses pulverizer to pulverize, and the separated device of material after pulverizing is the material of cupric
Separating with glass fibre, wherein, the boosted machine of material of cupric enters grader, and glass fibre is through spiral
Conveyer enters nonmetal retracting device；
(2), after the classification of the material of cupric classified machine, enter the little pulverizing chamber of pulverizer less than the material of 30 mesh and carry out again
Pulverize, enter electrostatic separator more than the material of 30 mesh；
(3) copper powder is separated by electrostatic separator with glass fibre, and the copper powder after separation carries out recycling, glass
Fiber enters nonmetal retracting device through conveying worm, carries out harmless treatment.
The recycling method scrapping wiring board the most according to claim 1, it is characterised in that described step
Suddenly the wiring board copper content of scrapping in (1) is 25-35wt%, and remaining is epoxy glass fiber.
The recycling method scrapping wiring board the most according to claim 1, it is characterised in that described step
Suddenly the raw meal particle size after the employing pulverizer in (1) is pulverized is more than 20 mesh.
The recycling method scrapping wiring board the most according to claim 1, it is characterised in that described step
Suddenly the harmless treatment in (3) is burning disposal or landfill disposal.
The recycling method scrapping wiring board the most according to claim 1, it is characterised in that described in burn
The incineration temperature that burning processes is 100-150 DEG C, and the burning time is 1-3 hour.
6. the recycling device scrapping wiring board being used for described in claim 1, it is characterised in that bag
Include pulverizer, separator, elevator, grader, electrostatic separator and the apparatus for recovering metal being sequentially connected with,
The blanking device of described separator is connected with nonmetal retracting device by the first conveying worm, described grader
Coarse fodder outlet be connected with pulverizer, described electrostatic separator is by the second conveying worm and nonmetal recovery dress
Put and be connected.
The recycling device scrapping wiring board the most according to claim 6, it is characterised in that described point
The coarse fodder outlet of level machine is connected with the little pulverizing chamber of pulverizer.
The recycling device scrapping wiring board the most according to claim 6, it is characterised in that described point
It is cyclone separator from device.
The recycling device scrapping wiring board the most according to claim 6, it is characterised in that described point
Level machine includes 30 mesh classifying screens, 40 mesh classifying screens and 50 mesh classifying screens.
The recycling device scrapping wiring board the most according to claim 6, it is characterised in that also include
For controlling the automatic control system that pulverizer, separator, elevator, grader and electrostatic separator run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408906.6A CN105921493A (en) | 2016-06-12 | 2016-06-12 | Method and device of recycling and reusing scrapped circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408906.6A CN105921493A (en) | 2016-06-12 | 2016-06-12 | Method and device of recycling and reusing scrapped circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105921493A true CN105921493A (en) | 2016-09-07 |
Family
ID=56832847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610408906.6A Pending CN105921493A (en) | 2016-06-12 | 2016-06-12 | Method and device of recycling and reusing scrapped circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105921493A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1057927A (en) * | 1996-08-15 | 1998-03-03 | Nakajima Shoten:Kk | Method for treating compound waste |
| JP2001096261A (en) * | 1999-10-01 | 2001-04-10 | Matsushita Electric Ind Co Ltd | Method of recycling waste electric appliance resource |
| CN101185935A (en) * | 2007-12-17 | 2008-05-28 | 曹时宜 | Method and apparatus for recovering solid waste material containing metal |
| CN101352719A (en) * | 2008-08-28 | 2009-01-28 | 巨锋 | Recovery technique of waste circuit board |
| KR100916727B1 (en) * | 2009-04-20 | 2009-09-14 | 류연진 | Waste scrap recycling method and apparatus |
| JP2009226302A (en) * | 2008-03-21 | 2009-10-08 | Nippon Magnetic Dressing Co Ltd | Method for treating waste printed circuit board |
| CN202366936U (en) * | 2011-12-15 | 2012-08-08 | 上海新金桥环保有限公司 | Waste printed circuit board recovery and disposal system |
| CN102699008A (en) * | 2012-06-12 | 2012-10-03 | 清华大学 | Mechanically physical treatment method used for various electronic wastes |
| CN102962244A (en) * | 2012-12-07 | 2013-03-13 | 桑德环境资源股份有限公司 | Waste PCB (printed circuit board) crushing and sorting system |
| CN204220600U (en) * | 2014-09-26 | 2015-03-25 | 江苏地一环保科技有限公司 | A kind of wiring board pulverizes remanufacture line |
| CN204396454U (en) * | 2015-01-16 | 2015-06-17 | 平湖市搏达环保设备科技有限公司 | Dry type is separated useless circuit board production line |
-
2016
- 2016-06-12 CN CN201610408906.6A patent/CN105921493A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1057927A (en) * | 1996-08-15 | 1998-03-03 | Nakajima Shoten:Kk | Method for treating compound waste |
| JP2001096261A (en) * | 1999-10-01 | 2001-04-10 | Matsushita Electric Ind Co Ltd | Method of recycling waste electric appliance resource |
| CN101185935A (en) * | 2007-12-17 | 2008-05-28 | 曹时宜 | Method and apparatus for recovering solid waste material containing metal |
| JP2009226302A (en) * | 2008-03-21 | 2009-10-08 | Nippon Magnetic Dressing Co Ltd | Method for treating waste printed circuit board |
| CN101352719A (en) * | 2008-08-28 | 2009-01-28 | 巨锋 | Recovery technique of waste circuit board |
| KR100916727B1 (en) * | 2009-04-20 | 2009-09-14 | 류연진 | Waste scrap recycling method and apparatus |
| CN202366936U (en) * | 2011-12-15 | 2012-08-08 | 上海新金桥环保有限公司 | Waste printed circuit board recovery and disposal system |
| CN102699008A (en) * | 2012-06-12 | 2012-10-03 | 清华大学 | Mechanically physical treatment method used for various electronic wastes |
| CN102962244A (en) * | 2012-12-07 | 2013-03-13 | 桑德环境资源股份有限公司 | Waste PCB (printed circuit board) crushing and sorting system |
| CN204220600U (en) * | 2014-09-26 | 2015-03-25 | 江苏地一环保科技有限公司 | A kind of wiring board pulverizes remanufacture line |
| CN204396454U (en) * | 2015-01-16 | 2015-06-17 | 平湖市搏达环保设备科技有限公司 | Dry type is separated useless circuit board production line |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
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| RJ01 | Rejection of invention patent application after publication |