CN204918775U - Acid etching waste liquor recycle and regeneration system of regeneration liquid recycling - Google Patents
Acid etching waste liquor recycle and regeneration system of regeneration liquid recycling Download PDFInfo
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- CN204918775U CN204918775U CN201520694202.0U CN201520694202U CN204918775U CN 204918775 U CN204918775 U CN 204918775U CN 201520694202 U CN201520694202 U CN 201520694202U CN 204918775 U CN204918775 U CN 204918775U
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Abstract
The utility model discloses an acid etching waste liquor recycle and regeneration system of regeneration liquid recycling, including etching solution processing system, regeneration liquid circulation system with join in marriage liquid system (12), etching solution processing system includes etching production line (1), mother liquor holding vessel (2), the electrolysis trough with dissolve absorption system (6), the electrolysis trough includes negative pole groove (3) and positive pole groove (5), mother liquor holding vessel (2), negative pole groove (3), positive pole groove (5), it communicates in proper order to dissolve absorption system (6), etching production line (1) is with mother liquor holding vessel (2) and dissolve absorption system (6) intercommunication, regeneration liquid circulation system is including regeneration liquid storage tank (10) and regeneration liquid processing system (11), join in marriage the liquid system including regeneration liquid processing system (11) and fluid distribution device (12). The beneficial effects of the utility model are that: this system is used for handling acid etching waste liquor, but has off -line production, practices thrift cost, resources are saved, can prevent advantage such as environmental pollution.
Description
Technical field
The utility model relates to liquid waste treatment system, the acidic etching waste liquid indirect regeneration of particularly a kind of regenerated liquid recirculation.
Background technology
Acidic etching liquid is a kind of etching solution made for the making of printed circuit board fine-line, multi-ply wood internal layer.The high speed development of modern electronics industry, board production enterprise rapidly increases, the trade effluent environmental pollution of this type of enterprise is more serious, and content of copper ion is very high in this type of trade effluent, the waste water therefore produced by wiring board manufacturing enterprise, waste liquid cause serious environmental pollution and problem of resource waste be day by day subject to society common concern.In order to avoid waste and protection of the environment, need to carry out recycling to acidic etching liquid.
The regeneration of the old liquid of acid etching is changed into the acidic solution of suitable proportion, transparent and high redox potential mainly through chemistry, electrochemical method, with maintain printed circuit board stable, etch fast.Wherein chemical regeneration is the main method of acid copper chloride etching liquid regeneration, and its principle is by discharging the old liquid of a certain proportion of etching (high specific gravity), adds a certain amount of sub-liquid (low-gravity), or is adding a certain amount of water, regulate the proportion of etching solution.Univalent copper ion is oxidized to bivalent cupric ion by the oxygenant simultaneously in sub-liquid, or adds oxygenant separately, improves etching solution redox potential, thus recovers original performance of etching solution.Common oxygenant has air, oxygen, chlorine, ozone, clorox, sodium chlorate, hydrogen peroxide etc.But total copper constantly increases, the final acidic etching liquid externally getting rid of a part that needs, to maintain certain total copper concentration, not only contaminate environment, also can cause the waste of a large amount of copper and acid; Electrochemical regeneration method is a kind of online renovation process, and output can have the metallic copper of commercial value by electrolysis, but can produce chlorine simultaneously, form the tail gas with pollution, not only contaminate environment also causes waste.
Chinese Patent Application No. is the patent of 201020567155.0, disclose a kind of regeneration system of acid etching liquid containing copper ions, this system be used for online treatment acidic etching liquid, be subject to the restriction of etching line production time, can only with etching line synchronous production, and the emission-control equipment of its internal system, consume the chlorine element of internal system, although achieve environmental protection, cause the waste of resource, make internal system chlorine loss of elements, need extra acid solution of adding to ensure the benefit of etching solution.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provides a kind of acidic etching waste liquid indirect regeneration of regenerated liquid recirculation.
The purpose of this utility model is achieved through the following technical solutions: a kind of acidic etching waste liquid indirect regeneration of regenerated liquid recirculation, comprise etching solution treatment system, the regenerated liquid recycle system and liquid mixing system, etching solution treatment system comprises etching production line, mother liquor hold tank, electrolyzer and solution absorption system, electrolyzer comprises cathode can, film and anode slot, mother liquor hold tank, cathode can, anode slot, solution absorption system is communicated with successively, etching production line respectively with mother liquor hold tank and solution absorption system connectivity, solution absorption system is communicated with etching production line,
The regenerated liquid recycle system comprises regenerated liquid storage tank and regenerated liquid treatment system, and anode slot, regenerated liquid storage tank, regenerated liquid treatment system are communicated with successively with etching production line;
Liquid mixing system comprises regenerated liquid treatment system and liquid dispensing device, and regenerated liquid treatment system, liquid dispensing device are communicated with successively with etching production line.
Described film is barrier film, cationic membrane or anionic membrane.
Described cathode can obtains electrolytic copper by electrolysis.
Ionic concn proofing unit is provided with in described electrolyzer.
Be provided with acidity proofing unit in described regenerated liquid treatment system, in liquid mixing system, be provided with acidity proofing unit.
This described intrasystem device and pipeline all use acidproof, alkaline-resisting, corrosion-resistant material to make.
The utility model has the following advantages:
1. this system is for the treatment of acidic etching waste liquid, the reuse of etching solution reprocessing cycle can be made while extraction metallic copper, realize etching solution process can carry out by off-line, improve processing efficiency, be conducive to making etching and etching solution process reach running balance by reasonably distributing resource, avoid the wasting of resources, realize Sustainable Production;
2. by adopting sour concentration technique that regenerated liquid is separated into the solution of highly acidity and the solution of Low acid, the solution of highly acidity is directly got back to etching line cocycle and is used, get back in etching line after the solution preparation of Low acid becomes oxygenant and add, produce without waste liquid increment in whole working cycle, realize real zero release.
3. electrolytic chlorine gas can be reclaimed by the utility model, when linking with product line, chlorine goes solution absorption system and cuprous ion to react generation bivalent cupric ion, regeneration etching solution is directly got back to and is produced line recycle, if do not produce line with etching to link, electrolytic chlorine gas can make chloride price product, and it is used for liquid mixing system preparation acid solution or as commodity, contaminate environment, waste resource can be avoided with this, realize chlorine element and water in intrasystem circulation, reduce extra interpolation additive or oxygenant, reduce production cost, save resource.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of acidic etching waste liquid indirect regeneration of regenerated liquid recirculation;
In figure, 1-etches production line, 2-mother liquor hold tank, 3-cathode can, 4-film, 5-anode slot, 6-solution absorption system, 9-electrolytic copper, 10-regenerated liquid storage tank, 11-regenerated liquid treatment system, 12-liquid dispensing device.
Embodiment
Be further described the utility model below in conjunction with accompanying drawing, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, a kind of acidic etching waste liquid indirect regeneration of regenerated liquid recirculation, comprise etching solution treatment system, the regenerated liquid recycle system and liquid mixing system 12, etching solution treatment system comprises etching production line 1, mother liquor hold tank 2, electrolyzer and solution absorption system 6, electrolyzer comprises cathode can 3, film 4 and anode slot 5, mother liquor hold tank 2, cathode can 3, anode slot 5, solution absorption system 6 are communicated with successively, etching production line 1 is communicated with solution absorption system 6 with mother liquor hold tank 2 respectively, and solution absorption system 6 is communicated with etching production line 1;
The regenerated liquid recycle system comprises regenerated liquid storage tank 10 and regenerated liquid treatment system 11, and anode slot 5, regenerated liquid storage tank 10, regenerated liquid treatment system 11 are communicated with successively with etching production line 1;
Liquid mixing system comprises regenerated liquid treatment system 11 and liquid dispensing device 12, and regenerated liquid treatment system 11, liquid dispensing device 12 are communicated with successively with etching production line 1.
In the present embodiment, described film 4 is barrier film, cationic membrane or anionic membrane, can carry out which kind of concrete film of choice for use according to the concrete condition of production.
In the present embodiment, described cathode can 3 obtains electrolytic copper 9 by electrolysis, the cupric ion in liquid can be made to reach balance with this, ensures the benefit of etching solution, and avoid copper to run off with ionic forms and cause environmental pollution, and copper metal can as the commodity with commercial value.
In the present embodiment, ionic concn proofing unit is provided with in described electrolyzer, by the ionic concn in ionic concn proofing unit tracer liquid, resource and regulating flow is reasonably distributed according to the information detected, etching is produced and can reach running balance with etching solution process, being conducive to can the realization of continuous production.
In the present embodiment, acidity proofing unit is provided with in described regenerated liquid treatment system 11, regenerated liquid treatment system 11 isolates the liquid of highly acidity and the liquid of Low acid by concentrated mode, the occurrence of acidity can be detected by acidity proofing unit, when can as etching solution to be utilized after the requirement that acidity reaches required, acidity proofing unit is provided with in liquid mixing system 12, the liquid of the isolated Low acid of regenerated liquid treatment system 11 enters in liquid mixing system 12, the requirement that may be used for etching production line is reached with the acidity improving liquid by adding acidic substance in liquid mixing system, acidity proofing unit in liquid mixing system 12 can detect that whether acidity is up to standard.
In the present embodiment, this described intrasystem device and pipeline all use acidproof, alkaline-resisting, corrosion-resistant material to make.
Working process of the present utility model is as follows: the etching solution part that etching production line 1 flows out enters solution absorption system 6 and stores, another part enters mother liquor hold tank 2 and stores, controlling flow by mother liquor hold tank 2 makes the etching solution in mother liquor hold tank 2 enter cathode can 3, under electrolytic action in cathode can 3, cuprous ion is reduced into bivalent cupric ion, bivalent cupric ion is reduced into electrolytic copper, and electrolytic copper is recycled through washing after copper device 9 cleans.The remaining cupric ion that is not reduced and other ions enter anode slot 5 by film 4.
Oxidized formation chlorine under the electrolytic action of chlorion in anode slot 5, when etching production line 1 when producing, part chlorine enters solvent absorption systems 6, with cuprous ion generation redox reaction to cupric ion and acidic liquid, this liquid can enter etching production line 1 as etching solution and complete production, realize the chlorine circulation of internal system with this, avoid chlorine loss of elements to cause environmental pollution and waste resource.
Because the electrolytic reaction in electrolyzer is not carried out completely, after electrolysis, remaining liquid comprises cupric ion as regenerated liquid, chlorion, hydrogen ion plasma, regenerated liquid has slightly acidic, regenerated liquid enters regenerated liquid storage tank 10 and stores, and be reproduced liquid storage tank 10 and control flow and be transported in regenerated liquid treatment system 11, regenerated liquid is concentrated in regenerated liquid treatment system 11 and isolates the liquid of highly acidity and the liquid of Low acid, the liquid of highly acidity stores respectively as the liquid of etching solution and Low acid, when etching production line 1 when producing, the liquid of highly acidity can be transported to etching production line 1 for the production of, the Liquid transfer of Low acid is in liquid mixing system 12, the chlorine obtained under the effect of anode slot 5 Inner electrolysis may be used for being mixed with new liquid in liquid mixing system 12, or additionally add oxygenant, the liquid-mixing of additive and Low acid is set to new liquid, and etching production line 1 when producing for slowly adding on etching production line 1 to control the ORP value of etching solution, chlorine element and water circulation use can be realized with this, intrasystem chlorine element and current are avoided to lose, decrease resource consumption, also additive can be added from system.Can running balance be realized by the control degree of electrolysis and the flow of liquid, be conducive to realizing automatic production and acidic etching waste liquid processed offline.
Claims (6)
1. the acidic etching waste liquid indirect regeneration of a regenerated liquid recirculation, it is characterized in that: comprise etching solution treatment system, the regenerated liquid recycle system and liquid mixing system, etching solution treatment system comprises etching production line (1), mother liquor hold tank (2), electrolyzer and solution absorption system (6), electrolyzer comprises cathode can (3), film (4) and anode slot (5), mother liquor hold tank (2), cathode can (3), anode slot (5), solution absorption system (6) is communicated with successively, etching production line (1) is communicated with solution absorption system (6) with mother liquor hold tank (2) respectively, solution absorption system (6) is communicated with etching production line (1),
The regenerated liquid recycle system comprises regenerated liquid storage tank (10) and regenerated liquid treatment system (11), and anode slot (5), regenerated liquid storage tank (10), regenerated liquid treatment system (11) are communicated with successively with etching production line (1);
Liquid mixing system comprises regenerated liquid treatment system (11) and liquid dispensing device (12), and regenerated liquid treatment system (11), liquid dispensing device (12) are communicated with successively with etching production line (1).
2. the acidic etching waste liquid indirect regeneration of a kind of regenerated liquid recirculation according to claim 1, is characterized in that: described film (4) is barrier film, cationic membrane or anionic membrane.
3. the acidic etching waste liquid indirect regeneration of a kind of regenerated liquid recirculation according to claim 1, is characterized in that: described cathode can (3) obtains electrolytic copper (9) by electrolysis.
4. the acidic etching waste liquid indirect regeneration of a kind of regenerated liquid recirculation according to claim 1, is characterized in that: be provided with ionic concn proofing unit in described electrolyzer.
5. the acidic etching waste liquid indirect regeneration of a kind of regenerated liquid recirculation according to claim 1, is characterized in that: be provided with acidity proofing unit in described regenerated liquid treatment system (11), liquid mixing system is provided with acidity proofing unit in (12).
6. the acidic etching waste liquid indirect regeneration of a kind of regenerated liquid recirculation according to claim 1, is characterized in that: this described intrasystem device and pipeline all use acidproof, alkaline-resisting, corrosion-resistant material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694202.0U CN204918775U (en) | 2015-09-09 | 2015-09-09 | Acid etching waste liquor recycle and regeneration system of regeneration liquid recycling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520694202.0U CN204918775U (en) | 2015-09-09 | 2015-09-09 | Acid etching waste liquor recycle and regeneration system of regeneration liquid recycling |
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| CN204918775U true CN204918775U (en) | 2015-12-30 |
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| CN201520694202.0U Expired - Fee Related CN204918775U (en) | 2015-09-09 | 2015-09-09 | Acid etching waste liquor recycle and regeneration system of regeneration liquid recycling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177582A (en) * | 2015-09-09 | 2015-12-23 | 成都虹华环保科技股份有限公司 | System for circulating and regenerating waste acidic etching solutions by re-circulating regeneration solutions |
-
2015
- 2015-09-09 CN CN201520694202.0U patent/CN204918775U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177582A (en) * | 2015-09-09 | 2015-12-23 | 成都虹华环保科技股份有限公司 | System for circulating and regenerating waste acidic etching solutions by re-circulating regeneration solutions |
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| 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: 20151230 Termination date: 20200909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |