CN201942725U - Complete equipment for multistage purification and processing of noble metal of waste circuit board - Google Patents
Complete equipment for multistage purification and processing of noble metal of waste circuit board Download PDFInfo
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- CN201942725U CN201942725U CN2010206894081U CN201020689408U CN201942725U CN 201942725 U CN201942725 U CN 201942725U CN 2010206894081 U CN2010206894081 U CN 2010206894081U CN 201020689408 U CN201020689408 U CN 201020689408U CN 201942725 U CN201942725 U CN 201942725U
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model relates to complete equipment for the multistage purification and processing of a noble metal of a waste circuit board, which particularly comprises devices in the following order: a shear type crusher, a jet mill, a gravity screener, a magnetic separator, a mixed metal dissolution separation device, an electrolytic copper purification and processing device and a gold and silver purification and processing device. The complete equipment for the multistage purification and processing of the noble metal of the waste circuit board prolongs service life of machinery, improves working efficiency, lowers energy consumption, and has high metal recovery rate.
Description
Technical field
The utility model relates to waste and old electric and reclaims hardware, the specifically multistage purification processing suite of equipment of a kind of precious metal of waste printed circuit board.
Background technology
In existing various abandoned printed circuit board treatment processs, the special emphasis difference of each method, the emphasis processing cost that has, the height of the emphasis metal recovery rate that has, the environmental benefit of the emphasis integral body that has.Various treatment processs all need the further demand that satisfies society, market of development raising ability on existing level.The energy consumption and the rate of recovery in the recycled in its entirety process paid attention in the processing of abandoned printed circuit board from now on.
Wet method and pyrogenic attack be because of laying particular emphasis on the saving of cost, and wherein pyrogenic attack can make recovery such as metallic copper main in the component and precious metal gold and silver, palladium.But the rate of recovery of other metal such as tin and lead etc. is very low, and serious waste of resources produces certain influence to economic return.Wet method is not carried out cracking and sorting to wiring board owing to be whole dissolving, can't reclaim a large amount of plain metals; Make leaching agent with prussiate because the toxicity of prussiate and environment and human influence just paid close attention to by the public, have many countries and regions law-making stipulation forbid to use prussiate to make leaching agent in the golden production process.
Pyrolysis method and mechanical process coupling are handled abandoned printed circuit board and are had environmental benefit and lower processing cost preferably, have very big advantages for development: pyrolysis method is a purpose with structure and the release toxic gas that destroys resin Composition, guarantee that pyrolysis temperature is higher than the issuable impact temperature of Mechanical Crushing, fully discharges toxic gas; Gained gas is unified recycling after the pyrolysis, avoids toxic gas to discharge to environment; Resin Composition knot in the printed-wiring board (PWB) after the pyrolysis is destroyed, has reduced the toughness of resin, is easy to fragmentation, can reduce the energy consumption of mechanical processes, but the purification degree of wiring board metal is lower, and comprehensive recovery is lower.
Yet the waste printed circuit board recovery technology mainly is divided into pyrometallurgy at present, wet method controls gold and machinery/physics reclaims.Traditional pyrogenic process, hydrometallurgy are carried out integrally fused to wiring board or are dissolved with extraction metal and precious metal wherein, and have ignored the recovery of other materials, and produce a large amount of waste water, waste residue, poison gas in treating processes, easily cause serious secondary pollution.Existing mechanical/physical recovery method still only stresses the thick recovery of metal in the wiring board more, and the quality of product is lower.Therefore, rationally recycle wiring board, improving its resource recovery is the new problem that is faced at present.
The utility model content
Technical problem to be solved: the utility model provides a kind of multistage purification processing suite of equipment of precious metal of waste printed circuit board at the prior art deficiency, to improve the comprehensive utilization ability of waste printed circuit board.
Technical scheme: the multistage purification processing suite of equipment of the precious metal of a kind of waste printed circuit board of the utility model, its special character is that the multistage purification processing suite of equipment of precious metal is made of in proper order following equipment in the described waste printed circuit board: shear crusher, jet mill, the gravity sifting machine, magnetic separator, hybrid metal corrosion tripping device, electrolytic copper purification processing device, gold and silver purification processing device.
The utility model effect is: by changing into traditional first step Weight type fragmentation shearing broken, both reduce the noise decibel value effectively, reduced the heavy load brought because of the excessive counterweight hammer mill of broken material, prolonged mechanical life-span again, increase work efficiency, cut down the consumption of energy.
Adopt comminution by gas stream equipment to replace traditional flotation and disintegrating process.Material particular diameter still has 6mm after shearing fragmentation, if directly enter the sorting link sorting index is greatly reduced, pulverize link if in broken and sorting link, increase, to increase the investment goods expense, adopt the air-flowing type disintegrating apparatus to replace this two links, make material particular diameter be reduced to 0.5mm by the wind speed collision, and realize preliminary sorting.The utility model realizes that effectively ferromagnetism metal, weak magneticmetal, nonmetal three separate, and the sorting index realization 95% of iron, nonmetallic sorting index realize more than 90%.By multistage separated and dissolved technology, realize the separation of heterogeneity precious metals such as existing copper, zinc-nickel, gold and silver effectively, improved the quality of finished product.Realize copper recovery up to 95%, and the final product quality height.The rate of recovery that realizes gold reaches 90%, nickel 80%, silver 90%.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
See Fig. 1, the multistage purification processing suite of equipment of a kind of precious metal of waste printed circuit board, the multistage purification processing suite of equipment of precious metal is made of in proper order following equipment in the described waste printed circuit board: shear crusher 1, jet mill 2, gravity sifting machine 3, magnetic separator 4, hybrid metal corrosion tripping device 5, electrolytic copper purification processing device 6, gold and silver purification processing device 7.
Specifically: mechanical process only is confined to the fragmentation and the sorting of wiring board at present, and relate to less for multistage purification of metal and precision work, wet method is generally extracted with the precious metal of strong acid to wiring board, secondary pollution is serious, quality at these two kinds of methods, the utility model adopts mechanical cracking and sorting earlier, again metal ingredient is carried out multistage purification with wet method, and last electrolysis is finish-machined to finished product.
Traditional first step Weight type fragmentation is replaced to the shearing pulverizing of employing, thereby alleviate the directly broken heavy broken load that pulverizer is brought, the second stage is pulverized and is adopted air-flowing type to pulverize, and air-flowing type is pulverized when pulverizing, and also according to the density of pulverized particles it is carried out preliminary sorting.
The crushing process of circuit card is shearing fragmentation (6mm * 6mm) → air-flowing type powder choosing (0.5mm).Separating of, ferromagnetism metal nonmetal and weak magneticmetal, adopt the sorting route of gravity screening and magnetic separation for realizing efficiently.
The multistage purification techniques aspect of metal.The corrosion of hybrid metal separates: make nonmetal, ferromagnetic metal and the effective sorting of other metals in the old circuit board.Sour molten rate difference based on different metal, the method molten by acid realizes the hybrid metal initial gross separation, and hybrid metal is added corrosion technology, the hybrid metal material added in the dilution heat of sulfuric acid dissolve, copper and zinc, nickel etc. change in the solution, and gold and silver, palladium etc. are insolubles.The purification of molten thing and precision work: after the dissolving of above-mentioned corrosion technology, copper and zinc, nickel etc. change in the solution, pass through the electroless copper plating method then, make copper become throw out and separate with zinc-nickel etc., and solution such as zinc-nickel are finish-machined to finished product by electrolysis process.And the copper throw out is finish-machined to Copper Foil by intermediate frequency copper smelting furnace and string utmost point electrolytic tank electrolysis, and electrolytic copper foil is the important material that copper-clad plate (CCL) and printed circuit board (pcb) are made, and has application market widely.
The purification of gold and silver and processing aspect.Gold and silver etc. separate with copper, zinc, nickel in the corrosion process as insolubles, separate the back by hydrochloric acid, nitric acid dissolve, and acid solution is carried out washing concentrating reclaim, wherein gold and silver etc. come as solution and other component separating, with Sulfothiorine it is carried out secondary again and separate, silver precipitates as insolubles, and gold can carry out electrochemical machining to it as solute, argentiferous mud earlier with the chemical method reduction, is carried out electrochemical machining to it again.
Claims (1)
1. the multistage purification processing suite of equipment of the precious metal of a waste printed circuit board, it is characterized in that the multistage purification processing suite of equipment of precious metal is made of in proper order following equipment in the described waste printed circuit board: shear crusher (1), jet mill (2), gravity sifting machine (3), magnetic separator (4), hybrid metal corrosion tripping device (5), electrolytic copper purification processing device (6), gold and silver purification processing device (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206894081U CN201942725U (en) | 2010-12-16 | 2010-12-16 | Complete equipment for multistage purification and processing of noble metal of waste circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206894081U CN201942725U (en) | 2010-12-16 | 2010-12-16 | Complete equipment for multistage purification and processing of noble metal of waste circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201942725U true CN201942725U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206894081U Expired - Fee Related CN201942725U (en) | 2010-12-16 | 2010-12-16 | Complete equipment for multistage purification and processing of noble metal of waste circuit board |
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| CN (1) | CN201942725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904627A (en) * | 2017-11-20 | 2018-04-13 | 董帆 | A kind of solid waste PCB circuit board processing unit |
| CN112439521A (en) * | 2020-11-02 | 2021-03-05 | 安徽瀚中菲欧新材料有限公司 | Copper recovery device of waste circuit board |
| CN112853406A (en) * | 2021-01-04 | 2021-05-28 | 广西大学 | Device and method for dissolving out waste printed circuit board metal through microwave enhanced electrochemistry |
-
2010
- 2010-12-16 CN CN2010206894081U patent/CN201942725U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904627A (en) * | 2017-11-20 | 2018-04-13 | 董帆 | A kind of solid waste PCB circuit board processing unit |
| CN107904627B (en) * | 2017-11-20 | 2019-08-02 | 湘潭云萃环保技术有限公司 | A kind of solid waste PCB circuit board processing unit |
| CN112439521A (en) * | 2020-11-02 | 2021-03-05 | 安徽瀚中菲欧新材料有限公司 | Copper recovery device of waste circuit board |
| CN112853406A (en) * | 2021-01-04 | 2021-05-28 | 广西大学 | Device and method for dissolving out waste printed circuit board metal through microwave enhanced electrochemistry |
| CN112853406B (en) * | 2021-01-04 | 2023-06-09 | 广西大学 | Device and method for electrochemically leaching waste printed circuit board metal by microwave enhancement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |