CN102172601A - Copper-clad plate copper foil recovery method and special apparatus - Google Patents
Copper-clad plate copper foil recovery method and special apparatus Download PDFInfo
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- CN102172601A CN102172601A CN2010106146210A CN201010614621A CN102172601A CN 102172601 A CN102172601 A CN 102172601A CN 2010106146210 A CN2010106146210 A CN 2010106146210A CN 201010614621 A CN201010614621 A CN 201010614621A CN 102172601 A CN102172601 A CN 102172601A
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Abstract
The invention relates to a copper-clad plate recovery method, belongs to the technical field of relevant equipment, and in particular relates to a copper-clad plate copper foil recovery method and a special apparatus. The method mills the copper foil of a copper-clad plate at first to directly mill the copper foil on the copper-clad plate; the main component in the milled material is a copper foil material; and after the milling, the copper foil turns into fine particles, and the subsequent crushing process is saved. No matter whether the copper material is separated by a physical processing method or extracted by a metallurgical method, the processed materials are milled particles with a high copper content. Therefore, the crusher crushing process is saved, the energy consumption in production is reduced, the production efficiency is improved, the copper can be completely recovered, and the economic benefits are obvious.
Description
Technical field:
The present invention relates to copper-clad plate recovery and treatment method and relevant device technical field, refer in particular to a kind of copper-clad plate Copper Foil recovery method and special equipment.
Background technology:
Copper-clad plate is a kind of supporting material to be soaked with resin or glass fibre, and one or both sides are coated with Copper Foil, and a kind of board-like material through hot pressing forms is called copper-clad laminate.It is a stock of doing PCB (printed circuit board (PCB)).Copper-clad plate is the basic material of electronics industry, is mainly used in processing and manufacturing printed circuit board (PCB) (PCB), extensively is used in electronic products such as television set, radio, computer, computer, mobile communication.
Along with the development of electronics industry, the output of copper-clad plate so just forms a large amount of discarded copper-clad plate waste materials also in rapid growth, and the pressure of environment has been become severe day by day.Even if do not consider the waste and old pcb board in the waste electronic product, only be that the annual waste leftover material that produces of copper-clad plate manufacturing enterprise all is a googol amount.Another aspect, owing to metal average contents such as Copper Foil in the copper-clad plate are about 23%, be much higher than general copper mine, therefore copper-clad plate is reclaimed and promptly can create economic profit and can reduce harm again environment, and help resource circulation and use, have very high economic worth and environmental value.
Recycling for copper-clad plate at present mainly comprises following several mode:
One, physical treatment process reclaims, and promptly by disintegrating apparatus waste and old copper-clad plate is pulverized.When the granularity after pulverizing reaches certain tiny degree, just can realize separating of resin or glass fibre and Copper Foil substantially.Hybrid particles after the pulverizing is separated by base material metal material through modes such as selection by winnowing, static screening, magnetic separation again from particle, obtain content at 95% above copper powder.For example, China Patent No. is: 200910041274.4 Chinese invention patent ublic specification of application, and it has announced " a kind of method for recovering and separating PCB by dry method ", the method that this invention is adopted is: waste and old PCB is dropped into the little bulk that the coarse crushing crusher machine becomes 20mm; With above-mentioned material process magnetic separator, select iron block broken apart in the material then; To separate crusher in crushing in the rest materials input behind the iron block again and become the little bulk of 5mm; With the material process magnetic separator that obtains, further select iron block broken apart in the material; The rest materials that to separate again behind the iron block is sent in the vortex sorting machine, and to make aluminium, tin be main metal with do not dissociate feed separation; The material that will not dissociate is sent into and is sent into electrostatic separator after atomizer is ground into the 20-60 order, and copper is separated with fibre resin.In addition, " the dry method physics of valuable constituent reclaims technology on the electron wastes integrated circuit board " of China Mining University's proposition (sees that China Patent No. is: 03113180.8 patent of invention specification) also be to adopt essentially identical principle.
Two, metallurgical extraction method reclaims, and it comprises pyrometallurgy and two kinds of methods of hydrometallurgical recovery (1) pyrometallurgy recovery metal process.Its principle still because this mode may produce secondary pollution, no longer adopts at present for the copper-clad plate after the fragmentation is separated the Copper Foil in the copper-clad plate through modes such as burning, meltings with baseplate material.(2) hydrometallurgical recovery metal process.Particle after the fragmentation soon is dissolved in the solvent (being generally acid solution), extracts metal material by chemical method or electro-deposition method, and the rate of recovery of this method is very high.See that the patent No. is 03121137.2 Chinese invention patent specification, it discloses a kind of " by the method and the device thereof that reclaim the copper metal in waste printed circuit board and the contained waste liquid ", the method that adopts is utilized strong acid solution circulation such as hydrochloric acid to water to drench on waste printed circuit board (PCB) exactly, after making strong acid solution reactions such as copper on this waste printed circuit board (PCB) and hydrochloric acid form the solution of a cupric, in the solution of this cupric, add sodium carbonate again, make it convert sodium salt and copper carbonate to; Wherein, this sodium salt can heat make it become crystalline solid after, use as raw material of industry recirculation, and this copper carbonate also can sell after thermal conversion becomes cupric oxide.
In conjunction with the above, recovery and treatment method to the copper-clad plate Copper Foil has the improved place of many needs at present, for example, no matter be that physical treatment mode or metallurgical extraction mode reclaim the copper-clad plate Copper Foil, it all needs at first fragmentation to be carried out in copper-clad plate, makes it form particle.When particularly the mechanical treatment mode reclaims, copper-clad plate need be crushed to small degree, disintegrating machine in this process (or pulverizer) need be done a large amount of merits, because the power of disintegrating machine is bigger, will consume a large amount of electric power like this, also produce huge production noise simultaneously.But we know, in the broken copper-clad plate, base material part (resin or glass fibre) is not main recycle object, only because it combines with Copper Foil, is difficult to separation, so need carry out fragmentation together.So, during disintegrating machine did work, having was to have wasted greatly.In the data more than 75%, crushing process is to have produced a large amount of idle works in fact with reference to base material part content in the general copper-clad plate.If can reduce the idle work worker that disintegrating machine is done, so just can save a large amount of electric power, also be beneficial to and improve the content of pulverizing copper in the particle of back, be beneficial to the recovery of subsequent process copper, and can further improve the rate of recovery of copper.
Summary of the invention:
Technical problem to be solved by this invention is exactly in order to overcome the deficiency in the present copper-clad plate recovery disintegrating apparatus, a kind of copper-clad plate Copper Foil recovery method is provided, this method be exactly reduce in the copper-clad plate recycling process energy resource consumption and to the treating capacity of useless material, reduce cost, enhance productivity and profit.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme: at first the Copper Foil in the copper-clad plate is tentatively reclaimed, material after will reclaiming is then isolated wherein copper product, the Copper Foil that described copper-clad plate comprises substrate and is overlying on substrate surface by metallurgical extraction method or physics (physics) facture; The preliminary removal process of described copper-clad plate is by special milling equipment the Copper Foil in the copper-clad plate to be carried out milling, handles the direct milling of Copper Foil in the copper-clad plate is got off by milling, finishes preliminary recovery.
In the technique scheme, the milling thickness of described milling device is as far as possible little, but is greater than the thickness of Copper Foil in the copper-clad plate, is all got off by milling to guarantee all Copper Foils.
After the present invention adopts technique scheme, at first the Copper Foil to copper-clad plate carries out milling, so just directly the Copper Foil milling in the copper-clad plate is got off, main component is exactly a copper foil material in the material that milling is got off, and after the milling processing, Copper Foil has formed tiny particle, has deducted the pulverizer comminution process like this.The material that these millings are got off adopts physical treatment process separating copper material, passes through cyclonic separation, static screening or beneficiating method in case of necessity again by in the particle copper end being reclaimed.Certainly, also can adopt metallurgy method from particle, to extract copper product.No matter be to extract copper product with physical treatment process separating copper material or employing metallurgy method, the material of its processing all is high copper content particles that milling is got off.So just reduced treating capacity, improved production efficiency, reduced energy consumption, and improved the copper product rate of recovery of copper-clad plate.
Because substrate is resin or glass fibre, be very easily and simple so Milling Process is carried out in copper-clad plate by milling device, the energy consumption of its generation is significantly less than traditional disintegrating machine to energy that substrate crushing consumed.Moreover, peel off the back particle through milling, the content of copper promotes greatly, in follow-up removal process, also greatly reduces the workload of other relevant idle works, further cut down the consumption of energy, and the rate of recovery of last copper will further promote.
Another technical problem to be solved by this invention just provides the special equipment in a kind of above-mentioned copper-clad plate Copper Foil recovery method.
For solving this technical problem, the technical solution used in the present invention is: this special equipment is a plain mille, it comprises a body, be installed on the support on the body and be installed in head on the support, one facing cutter can be adjusted up and down is installed on the swivel knife shaft on the head, wherein the bed body is formed with the transfer passage for the copper-clad plate feeding, pedestal is positioned at the transfer passage centre position, and copper-clad plate is milled away top layer through head by the facing cutter on the head through transfer passage.
In the technique scheme, the width of described transfer passage is suitable with the copper-clad plate width.
In the technique scheme, the diameter of described facing cutter is more than or equal to the width of transfer passage.Like this when copper-clad plate when the head, disposablely just the Copper Foil milling is got off, simple to operate, fast.
After the present invention adopts technique scheme, can handle copper-clad plate fast, easily, to improve the rate of producing effects that the copper-clad plate Copper Foil returns by this special equipment.
Description of drawings:
Fig. 1 is the front view of special-purpose equipment among the present invention;
Fig. 2 is the vertical view of special-purpose equipment among the present invention.
The specific embodiment:
The recovery method that the present invention adopts can be a physical treatment process, also can be the metallurgical extraction method.Use which kind of method all to need pre-treatment is carried out in discarded copper-clad plate, and improvements of the present invention just are pre-treatment is changed, and to reduce the idle work of being done in the subsequent recovery operation, reduce energy consumption, enhance productivity and the rate of recovery of copper.
The Copper Foil that copper-clad plate comprises substrate and is overlying on substrate surface.This method of the present invention is: with copper-clad plate by pre-treatment after, form particle, then particle is isolated wherein copper product by metallurgical extraction method or physical treatment process.
Pre-treatment of the present invention comprises: at first by milling device the Copper Foil in the copper-clad plate is carried out milling, by milling Copper Foil in the copper-clad plate is separated with substrate, and then the Copper Foil particle after the milling carried out physical treatment process or the metallurgical extraction method recycles.
The thickness of copper-clad plate is generally 3～5mm, and wherein the thickness of Copper Foil is 0.2～0.6mm.Convert according to volume, the copper-clad plate copper content is 10%～25%, and the content of substrate (mainly being resin or glass fibre) accounts for the overwhelming majority.In the present technology, no matter be that physical treatment mode or metallurgical extraction method mode reclaim copper-clad plate, it all needs at first fragmentation to be carried out in copper-clad plate, and then pulverizes, and makes it form tiny particle.In the particularly physical treatment mode, copper-clad plate need be crushed to small degree.For example, copper-clad plate pulverized be the particle that granularity is 0.1mm, because the thickness of Copper Foil is greater than the diameter of pulverizing the back particle, basic so just the realization separating between Copper Foil and the substrate.Disintegrating machine in this process (or pulverizer) need be done a large amount of merits, because the power of disintegrating machine is bigger, will consume a large amount of electric power like this, also produces huge production noise simultaneously.But we know, in the broken copper-clad plate, base material part (resin or glass fibre) is not to be main recycle object, only because it combines with Copper Foil, is difficult to separation, so need carry out fragmentation together.So, during disintegrating machine did work, having was to have wasted greatly.With reference to top data, base material part content has been done 75% idle work at least in the data more than 75% in the copper-clad plate in the crushing process.And in the follow-up processing procedure, need again the hybrid particles thing of whole base plate and Copper Foil is recycled, also formed a large amount of idle works in the subsequent processes.If can reduce the idle work that disintegrating machine is done, so just can save a large amount of electric power, also will improve the content of pulverizing copper in the particle of back, help the recovery of subsequent process copper, and can further improve the rate of recovery of copper.
Institute of the present invention improvements carry out pre-treatment to copper-clad plate exactly, Copper Foil is directly come out by initial gross separation on the substrate, like this in the particle of Xing Chenging, the content of Copper Foil just promotes greatly, content with respect to present 10%～25%, in the particle through pre-treatment formation, the content of Copper Foil can reach more than 85% at least.When particle being carried out the subsequent recovery processing, the idle work that is consumed just reduces greatly like this, and cost recovery also reduces greatly, and also will further improve the rate of recovery of Copper Foil.
Particularly, see Fig. 1,2, use a kind of special milling equipment to be plain mille among the present invention, it comprises: bed body 1, be installed on the support 2 on the body 1 and be installed in head 3 on the support 2, one facing cutter 4 can be adjusted up and down is installed on the swivel knife shaft on the head 3, wherein bed body 1 is formed with the transfer passage 11 for copper-clad plate 6 feedings, and pedestal 2 is positioned at transfer passage 11 centre positions, and copper-clad plate 6 is milled away top layer through head 3 by the facing cutter on the head 34 through transfer passage 11.
In addition,, can some feeding rollers 5 be set at interval above transfer passage 11, promote copper-clad plate 6 chargings, guarantee that also copper-clad plate 6 can perk by feeding roller 6 in order to be beneficial to the charging of copper-clad plate 6.
In order to stablize the charging of copper-clad plate 6, prevent that it from deflecting under facing cutter 4 effects, the width of described transfer passage 11 is identical with copper-clad plate 6 width, and copper-clad plate 6 just deflection can not occur in the process of moving ahead like this.
In order disposablely to carry out milling to copper-clad plate 6, the diameter of described facing cutter 31 is more than or equal to the width of transfer passage 11.Copper-clad plate 6 is by behind the facing cutter 31 like this, and just being got off by disposable milling in its top layer, has improved production efficiency.
Because the present invention carries out roughing to copper-clad plate 6, it is not high to required precision, so the cutter tooth in the facing cutter 4 adopts the spiral bastard enough to reach corresponding effects, perhaps directly in the bottom surface of facing cutter 4 some blades being installed can realize identical effect.
Removal process of the present invention is:
At first, discarded copper-clad plate 6 is placed on the transfer passage 11, the width that should guarantee copper-clad plate 6 and the width of transfer passage 11 quite (certain, if the width of copper-clad plate 6 also is feasible less than the width of transfer passage 11, in the course of conveying, it is applied certain pressure) by feeding roller 5.Realize moving ahead of copper-clad plate 6 by hand push or feeding roller 5, its one side that is covered with Copper Foil should configure the axial feeding of facing cutter 4 towards the top.Milling machine is started working, and when copper-clad plate 6 ran to head 3 belows, facing cutter 4 began milling is carried out on copper-clad plate 6 surfaces, and along with the feeding of copper-clad plate 6, after it passed through facing cutter 4 fully, its surperficial Copper Foil was got off by milling.
Then, the particle that milling is got off collects and carries out subsequent recovery and handle, and the substrate after the milling can carry out other recycling.
At last, the particle that whether milling is got off according to the technology different choice of subsequent recovery processing carries out the secondary pulverizing.When for example adopting physical treatment process that particle is reclaimed, need carry out secondary to the particle that milling is got off and pulverize, the granularity of broken back particle is 0.1 millimeter.Because the particle itself that milling is got off has been a fine particle,, secondary do not need to consume the too much energy so pulverizing.If adopt the metallurgical extraction method to reclaim, the particle that milling is got off substantially can meet the demands, and need not to carry out secondary again and pulverizes.
At last, by physical treatment process or metallurgical extraction method the copper in the particle is extracted and get final product.
Certainly, the above only is example of the present invention, is not to limit the scope of the present invention, and all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify, and all should be included in the present patent application claim.
Claims (6)
1. copper-clad plate Copper Foil recovery method, this method is: at first the Copper Foil in the copper-clad plate (6) is tentatively reclaimed, material after will reclaiming is then isolated wherein metal material by physical treatment process or metallurgical extraction method, described copper-clad plate (6) comprising: substrate and the Copper Foil that is overlying on substrate surface is characterized in that:
The preliminary removal process of described copper-clad plate (6) Copper Foil is: by special milling equipment the Copper Foil in the copper-clad plate is carried out milling, the direct milling of the Copper Foil in the copper-clad plate is got off, finish preliminary recovery.
2. copper-clad plate Copper Foil recovery method according to claim 1 is characterized in that: the milling thickness of described milling device is gone up the thickness of Copper Foil greater than copper-clad plate (6).
3. the special equipment of copper-clad plate Copper Foil recovery method, it is characterized in that: this special equipment is a plain mille, it comprises: bed body (1), be installed on the support (2) on the body (1) and be installed in head (3) on the support (2), on the swivel knife shaft that is installed in head (3) that one facing cutter (4) can be adjusted up and down, wherein be formed with transfer passage (11) on the bed body (1) for copper-clad plate (6) feeding, pedestal (2) is positioned in the middle of the transfer passage (11), when copper-clad plate (6) is passed through head (3) along transfer passage (11), milled away the Copper Foil that is positioned at the top layer by the facing cutter (4) on the head (3).
4. the special equipment of copper-clad plate Copper Foil recovery method according to claim 3 is characterized in that: described transfer passage (11) top is provided with some feeding rollers (5) at interval.
5. the special equipment of copper-clad plate Copper Foil recovery method according to claim 4 is characterized in that: the width of described transfer passage (11) is suitable with copper-clad plate (6) width.
6. according to the special equipment of any described copper-clad plate Copper Foil recovery method among the claim 3-5, it is characterized in that: the diameter of described facing cutter (4) is more than or equal to the width of transfer passage (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010106146210A CN102172601A (en) | 2010-12-30 | 2010-12-30 | Copper-clad plate copper foil recovery method and special apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106146210A CN102172601A (en) | 2010-12-30 | 2010-12-30 | Copper-clad plate copper foil recovery method and special apparatus |
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| CN102172601A true CN102172601A (en) | 2011-09-07 |
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| CN2010106146210A Pending CN102172601A (en) | 2010-12-30 | 2010-12-30 | Copper-clad plate copper foil recovery method and special apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908996A (en) * | 2013-01-04 | 2014-07-09 | 无锡荣成纸业有限公司 | System for recovering papermaking waste |
| CN108297528A (en) * | 2018-04-08 | 2018-07-20 | 湖南科技大学 | A kind of device and method of waste and old copper-clad plate separation and recovery |
| CN113578928A (en) * | 2021-08-03 | 2021-11-02 | 广东嘉元科技股份有限公司 | Waste copper foil recovery device and method |
| CN114619204A (en) * | 2022-02-28 | 2022-06-14 | 江南大学 | Method for forming arched surface of metal-based ceramic composite material substrate |
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| CN1092001A (en) * | 1993-03-08 | 1994-09-14 | 王威平 | Recovery process of waste copperclad plate |
| JPH1094781A (en) * | 1996-09-25 | 1998-04-14 | Hisashi Tanazawa | Method for recovering copper from printed circuit board and cutting device for recovering copper |
| JP2004202302A (en) * | 2002-12-24 | 2004-07-22 | National Institute Of Advanced Industrial & Technology | Method and apparatus for recovering metal from printed circuit board |
| CN201931139U (en) * | 2010-12-30 | 2011-08-17 | 东莞市天图环保科技有限公司 | Milling equipment for recovering copper foil of copper-clad plate |
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2010
- 2010-12-30 CN CN2010106146210A patent/CN102172601A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092001A (en) * | 1993-03-08 | 1994-09-14 | 王威平 | Recovery process of waste copperclad plate |
| JPH1094781A (en) * | 1996-09-25 | 1998-04-14 | Hisashi Tanazawa | Method for recovering copper from printed circuit board and cutting device for recovering copper |
| JP2004202302A (en) * | 2002-12-24 | 2004-07-22 | National Institute Of Advanced Industrial & Technology | Method and apparatus for recovering metal from printed circuit board |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908996A (en) * | 2013-01-04 | 2014-07-09 | 无锡荣成纸业有限公司 | System for recovering papermaking waste |
| CN103908996B (en) * | 2013-01-04 | 2017-04-05 | 无锡荣成环保科技有限公司 | papermaking waste recovery system |
| CN108297528A (en) * | 2018-04-08 | 2018-07-20 | 湖南科技大学 | A kind of device and method of waste and old copper-clad plate separation and recovery |
| CN108297528B (en) * | 2018-04-08 | 2023-10-17 | 湖南科技大学 | Device and method for separating and recycling waste copper-clad plate |
| CN113578928A (en) * | 2021-08-03 | 2021-11-02 | 广东嘉元科技股份有限公司 | Waste copper foil recovery device and method |
| CN113578928B (en) * | 2021-08-03 | 2022-04-12 | 广东嘉元科技股份有限公司 | Waste copper foil recovery device and method |
| CN114619204A (en) * | 2022-02-28 | 2022-06-14 | 江南大学 | Method for forming arched surface of metal-based ceramic composite material substrate |
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Application publication date: 20110907 |