CN205223353U - Tin waste liquid regeneration facility is shelled to nitric acid type - Google Patents
Tin waste liquid regeneration facility is shelled to nitric acid type Download PDFInfo
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- CN205223353U CN205223353U CN201520883989.5U CN201520883989U CN205223353U CN 205223353 U CN205223353 U CN 205223353U CN 201520883989 U CN201520883989 U CN 201520883989U CN 205223353 U CN205223353 U CN 205223353U
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Abstract
The utility model discloses a tin waste liquid regeneration facility is shelled to nitric acid type, including waste liquid storage tank, subsider, centrifugal separator, electrolysis trough, electrolysis keep in the groove, join in marriage cistern, gas processing unit, shell the tin liquor storage tank, shell the tin waste liquid and by the leading -in subsider of waste liquid storage tank, add the precipitating agent reaction leading -in centrifugal separator in back completely, isolate the stannic acid through centrifugal process and deposit, the centrifugation stillness of night gets into the electrolysis trough, copper content low to the concentration after the leading -in cistern of joining in marriage, add proper amount nitric acid, ferric nitrate, additive and stabilizer and join in marriage into and freshly shell that the tin liquor is leading -in again shells the tin liquor reservoir, carry base member copper production line to use, the combined precipitating agent of this novel adoption causes tin fast glues to reunite and closes the sediment, and the clear solution is handled in the circulation electrolysis, supplyes and shells the tin liquor ingredient, and the energy consumption is low, noresidue at harvest time, high -usage.
Description
Technical field
Basis is novel relates to a kind of resource regeneration and nonferrous metals recycling technical equipment field, particularly a kind of nitric acid type stripping tin spent solution regeneration equipment.
Background technology
In PCB industry, in order to protect matrix copper coin not oxidized usually at its plated surface last layer tin.Again tin is divested after completing protection, thus produce a large amount of stripping tin waste liquids.The ingredients of industrial extensive employing in recent years based on the salpeter solution containing iron ion, therefore the main component of shelling in tin waste liquid is roughly 30-40% nitric acid, 150-200g/L tin, 10-20g/L iron and 10-20g/L copper.Not only environmental pollution can be avoided to the regeneration of waste liquid, then the tin born and copper also can create more economic benefit for enterprise.
There are many stripping tin liquid waste disposal techniques in the market, viewed from energy consumption and the aspect such as environmental protection and processing efficiency, had respective relative merits.Although different for the separation process means of tin, physical heating method and the large class of chemical method two substantially can be divided into.The probability of collision that heat treated can accelerate alpha tin acid molecule in solution is carried out to stripping tin liquor, thus aggregates into the β-stannic acid being insoluble in acid solution and be then separated from solution.The method advantage to avoid additional chemical material to add.Shortcoming is that energy consumption is high, though can process well absorb volatilization nitric acid gas but scene still has many acid mists, complex process cost is high.Such as Chang Xin Industrial Co., Ltd. CN1472362A patent Anodic high-temperature electrolysis is settled out tin combined with cathode low-temperature electrolytic copper technology, the firm blue CN103225078A heat in Shanghai is in conjunction with steam air supporting precipitation technology, and Guangzhou polytechnical university CN103060844A heat is in conjunction with flocculation agent precipitation technology.Chemical precipitation method advantage is that energy consumption is low, and shortcoming to introduce the regeneration effect of additional chemical material impact stripping tin liquor.Such as desolate as equality PMA-Na
2s system isolates tin and copper from stripping tin waste liquid, and the iron that also can consume part while introducing portion impurity is unfavorable for regeneration.Zhou Yong to hold etc. and uses tetravalent tin micelle in non-ionic polyacrylamide and polymine mixture precipitation solution.Shenzhen City hazardous waste Management station Co., Ltd CN102775197A adds the precipitation tin such as sodium carbonate, sodium hydroxide, ammoniacal liquor, consumes nitric acid and waste liquid cannot be regenerated.In addition, for Fe remaining in solution after Separation of Tin
3+can not get back in the middle of regenerated liquid by Appropriate application.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of nitric acid type stripping tin spent solution regeneration equipment, and for the technological deficiency that above-mentioned stripping tin devil liquor recovery exists, this novel object is the regeneration specific equipment proposing a kind of nitric acid type stripping tin waste liquid; Its feature is to adopt combined precipitation reagent, causes tetravalent tin micelle polymeric precipitation in stripping tin waste liquid fast, is processed further, process energy consumption low under normal temperature condition, precipitating agent decomposes noresidue by cyclic electrolysis treatment process to centrifugal clear liquid; Stripping tin waste water utilization rate is high, realizes whole recycle and without waste gas discharge of wastewater, retains the Fe in solution
3+, isolated tin and copper can bring considerable economic return.
For achieving the above object, the technical solution of the utility model is as follows: a kind of nitric acid type stripping tin spent solution regeneration equipment, comprise liquid waste tank, subsider, whizzer, electrolyzer, electrolysis temporary tank, liquid pool, gas disposal unit, stripping tin liquor storage tank, water cooler, pump group, agitator, pipeline, it is characterized in that:
Stripping tin waste liquid is stored in described liquid waste tank, described stripping tin waste liquid comes from matrix copper board assembly line, described liquid waste tank is communicated with subsider by pipeline, described subsider is by being provided with agitator, precipitation agent charging box is provided with above described subsider, be communicated with whizzer by pipeline below described subsider, the acid gas produced in described subsider is communicated with gas disposal unit by pipeline, described whizzer will precipitate and liquid phase separation, the tin copper precipitation separated recycles separately, clear liquid after centrifugal is transported to electrolysis temporary tank and stores, described electrolysis temporary tank to be circulated with electrolyzer by pump group and is communicated with, the bypass of described pump group leads to liquid pool, water cooler is provided with, for carrying out circulating cooling to the clear liquid in electrolysis temporary tank in described electrolysis temporary tank, described clear liquid is sent in electrolyzer, is provided with electrolyzer, carries out electrolysis by electrolyzer to the copper in clear liquid, iron ion in described electrolyzer, and the acid gas produced in described electrolyzer is communicated with gas disposal unit by pipeline, by detecting the clear liquid in electrolysis temporary tank, in control clear liquid, content of copper ion is lower than certain value, then satisfactory clear liquid is transported in liquid pool, agitator and dosing tank is provided with above described liquid pool, the acid gas that described liquid pool produces is communicated with gas disposal unit by pipeline, described liquid pool to be circulated with gas disposal unit by pump group and pipeline and is communicated with, and be communicated with stripping tin liquor storage tank by the bypass of pump group, described stripping tin liquor storage tank is communicated with matrix copper board assembly line by pipeline, by pump group, regeneration stripping tin liquor is delivered to matrix copper board assembly line.
Described agitator, pump group, charging box, dosing tank, electrolyzer, whizzer, water cooler, gas disposal unit are connected with regulator cubicle and Controlling System electric signal.
This novel principle of work is: this novel stripping tin spent solution regeneration equipment comprises liquid waste tank, subsider, whizzer, electrolyzer, electrolysis temporary tank, liquid pool, stripping tin liquor storage tank, gas disposal unit and regulator cubicle and Controlling System is formed; First stripping tin waste liquid imports subsider by liquid waste tank, adds after precipitation agent reacts completely and imports whizzer, isolates stannic acid precipitation through centrifugal treating; The centrifugal stillness of night enters electrolyzer, and constantly circulates between electrolyzer and electrolysis temporary tank, detects after copper content is low to moderate finite concentration and imports liquid pool; Add appropriate nitric acid, iron nitrate, additive and stablizer to be made into fresh stripping tin liquor and to import stripping tin liquor reservoir again, further, by and be transported to matrix copper board assembly line and use.
Pass through technique scheme, the beneficial effect of this new technique scheme is: adopt combined precipitation reagent, causes tetravalent tin micelle polymeric precipitation in stripping tin waste liquid fast, is processed further by cyclic electrolysis to centrifugal clear liquid, supplement stripping tin liquor component, prepare new stripping tin liquor.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only these some novel embodiments, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of nitric acid type stripping tin liquor reclaim equiment structural diagrams intention disclosed in the utility model embodiment.
Numeral and the corresponding component title represented by letter in figure:
1. liquid waste tank 2. subsider 3. whizzer 4. electrolyzer
5. electrolysis temporary tank 6. liquid pool 7. gas disposal unit 8. shells tin liquor storage tank
9. water cooler 10. pump group 11. agitator 12. pipeline
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in this new embodiment, obviously, described embodiment is only this novel a part of embodiment, instead of whole embodiments.Embodiment in novel based on this, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope that this is novel protected.
According to Fig. 1, basis is novel provides a kind of nitric acid type stripping tin spent solution regeneration equipment, comprises liquid waste tank 1, subsider 2, whizzer 3, electrolyzer 4, electrolysis temporary tank 5, liquid pool 6, gas disposal unit 7, stripping tin liquor storage tank 8, water cooler 9, pump group 10, agitator 11, pipeline 12.
Stripping tin waste liquid is stored in described liquid waste tank 1, described stripping tin waste liquid comes from matrix copper board assembly line, described liquid waste tank 1 is communicated with subsider 2 by pipeline 12, described subsider 2 is by being provided with agitator 11, precipitation agent charging box is provided with above described subsider 2, be communicated with whizzer 3 by pipeline 12 below described subsider 2, the acid gas produced in described subsider 2 is communicated with gas disposal unit 7 by pipeline, described whizzer 3 will precipitate and liquid phase separation, the tin copper precipitation separated recycles separately, clear liquid after centrifugal is transported to electrolysis temporary tank 5 and stores, described electrolysis temporary tank 5 to be circulated with electrolyzer 4 by pump group 10 and is communicated with, the bypass of described pump group 10 leads to liquid pool 6, water cooler 9 is provided with, for carrying out circulating cooling to the clear liquid in electrolysis temporary tank 5 in described electrolysis temporary tank 5, described clear liquid is sent in electrolyzer 4, is provided with electrolyzer, carries out electrolysis by electrolyzer to the copper in clear liquid, iron ion in described electrolyzer 4, and the acid gas produced in described electrolyzer 4 is communicated with gas disposal unit 7 by pipeline 12, by detecting the clear liquid in electrolysis temporary tank 5, in control clear liquid, content of copper ion is lower than certain value, then satisfactory clear liquid is transported in liquid pool 6, agitator 11 and dosing tank is provided with above described liquid pool 6, the acid gas that described liquid pool 6 produces is communicated with gas disposal unit 7 by pipeline 12, described liquid pool 6 to be circulated with gas disposal unit 7 by pump group 10 and pipeline 12 and is communicated with, and be communicated with stripping tin liquor storage tank 8 by the bypass of pump group 10, described stripping tin liquor storage tank 8 is communicated with matrix copper board assembly line by pipeline 12, by pump group 10, regeneration stripping tin liquor is delivered to matrix copper board assembly line.
Described agitator 11, pump group 10, charging box, dosing tank, electrolyzer 4, whizzer 3, water cooler 9, gas disposal unit 7 are connected with regulator cubicle and Controlling System electric signal.
This novel concrete implementation and operation step is: as shown in Figure 1, and reclaim equiment system comprises liquid waste tank 1, subsider 2, whizzer 3, electrolyzer 4, electrolysis temporary tank 5, liquid pool 6, gas disposal unit 7, stripping tin liquor storage tank 8 and regulator cubicle and Controlling System; First stripping tin waste liquid imports subsider 2 by liquid waste tank 1 and carries out pre-treatment separation, and the treatment time is 1 hour, and sedimentation imports whizzer 3 completely afterwards, isolates stannic acid precipitation through centrifugal treating, sends into stannic acid precipitation process operation; The stillness of night that whizzer obtains enters electrolysis temporary tank 5, and constantly circulated by pump group between electrolyzer 4 and electrolysis temporary tank 5, water cooler is furnished with in electrolysis temporary tank 5, and timing detects the copper content in clear liquid, after copper content is low to moderate 5g/L, electrolytic solution being imported in liquid pool 6, adding appropriate nitric acid, iron nitrate by adding fragrant plant case, protect copper agent and stablizer is made into fresh stripping tin liquor, and the stripping tin liquor prepared finally is imported stripping tin liquor storage tank 8; Described gas disposal unit 7 is connected with liquid pool 6 with subsider 2, electrolyzer 4, absorbs the sour gas that production process produces.
Specific embodiment:
1, shelling tin waste liquid main ingredient content is, acid equivalent 4.5N, iron 14g/L, copper 19g/L, tin 155g/L;
2, adopt heating method to compare experiment, described contrast experiment's condition is: temperature 100 degree, and heat-up time is 1 hour; After heating method precipitation process, in centrifugal clear liquid, each component concentration is: acid equivalent 3.6N, iron 7.2g/L, copper 19g/L, tin 20g/L;
3, this New Regenerated: with precipitation agent in normal temperature 20 degree of precipitation process, each component concentration in centrifugal clear liquid, acid equivalent 4.2N, iron 13g/L, copper 18g/L, tin 13g/L;
Above-mentioned contrast product is tested visible thus, precipitation agent precipitation tin better effects if, and the low not loss nitric acid of energy consumption; After electrolysis, copper content is down to 5g/L, and acid equivalent rises to 4.5N, add appropriate nitric acid to acid equivalent 6N, 5% iron nitrate, 0.5% protects copper agent and 0.5% stablizer is made into fresh stripping tin liquor; Move back tin speed 20 μm/min, erosion copper rate <1 μm/min.
By above-mentioned specific embodiment, this novel beneficial effect is: adopt combined precipitation reagent, tetravalent tin micelle polymeric precipitation in quick initiation stripping tin waste liquid, by cyclic electrolysis treatment process, centrifugal clear liquid is processed further, add and supplement stripping tin liquor component, prepare new stripping tin liquor, make stripping tin waste liquid obtain holomorphosis and recycle, energy consumption is processed low, precipitating agent decomposes noresidue under renovation process normal temperature condition; Stripping tin waste water utilization rate is high, realizes whole recycle and without waste gas discharge of wastewater, retains the Fe in solution
3+, isolated tin and copper can bring considerable economic return.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses novel.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from these novel spirit or scope, can realize in other embodiments.Therefore, basis is novel can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a nitric acid type stripping tin spent solution regeneration equipment, is characterized in that, comprises liquid waste tank, subsider, whizzer, electrolyzer, electrolysis temporary tank, liquid pool, gas disposal unit, stripping tin liquor storage tank, water cooler, pump group, agitator, pipeline, stripping tin waste liquid is stored in described liquid waste tank, described stripping tin waste liquid comes from matrix copper board assembly line, described liquid waste tank is communicated with subsider by pipeline, described subsider is by being provided with agitator, precipitation agent charging box is provided with above described subsider, be communicated with whizzer by pipeline below described subsider, the acid gas produced in described subsider is communicated with gas disposal unit by pipeline, described whizzer will precipitate and liquid phase separation, the tin copper precipitation separated recycles separately, clear liquid after centrifugal is transported to electrolysis temporary tank and stores, described electrolysis temporary tank to be circulated with electrolyzer by pump group and is communicated with, the bypass of described pump group leads to liquid pool, water cooler is provided with, for carrying out circulating cooling to the clear liquid in electrolysis temporary tank in described electrolysis temporary tank, described clear liquid is sent in electrolyzer, is provided with electrolyzer, carries out electrolysis by electrolyzer to the copper in clear liquid, iron ion in described electrolyzer, and the acid gas produced in described electrolyzer is communicated with gas disposal unit by pipeline, by detecting the clear liquid in electrolysis temporary tank, in control clear liquid, content of copper ion is lower than certain value, then satisfactory clear liquid is transported in liquid pool, agitator and dosing tank is provided with above described liquid pool, the acid gas that described liquid pool produces is communicated with gas disposal unit by pipeline, described liquid pool to be circulated with gas disposal unit by pump group and pipeline and is communicated with, and be communicated with stripping tin liquor storage tank by the bypass of pump group, described stripping tin liquor storage tank is communicated with matrix copper board assembly line by pipeline, by pump group, regeneration stripping tin liquor is delivered to matrix copper board assembly line.
2. a kind of nitric acid type stripping tin spent solution regeneration equipment according to claim 1, it is characterized in that, described agitator, pump group, charging box, dosing tank, electrolyzer, whizzer, water cooler, gas disposal unit are connected with regulator cubicle and Controlling System electric signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883989.5U CN205223353U (en) | 2015-11-06 | 2015-11-06 | Tin waste liquid regeneration facility is shelled to nitric acid type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520883989.5U CN205223353U (en) | 2015-11-06 | 2015-11-06 | Tin waste liquid regeneration facility is shelled to nitric acid type |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676528A (en) * | 2015-11-06 | 2017-05-17 | 陶克（苏州）机械设备有限公司 | Regenerative device and method for nitric acid type solder stripping wastewater |
| CN108557870A (en) * | 2018-05-07 | 2018-09-21 | 昆山市新溢诚电子科技有限公司 | Metastannic acid retracting device in a kind of stripping tin waste liquid |
| CN108557871A (en) * | 2018-05-07 | 2018-09-21 | 昆山市新溢诚电子科技有限公司 | A kind of metastannic acid process units and metastannic acid production method |
| CN110055537A (en) * | 2019-05-22 | 2019-07-26 | 惠州市臻鼎环保科技有限公司 | A kind of method for reclaiming of PCB nitric acid spent solder stripper |
-
2015
- 2015-11-06 CN CN201520883989.5U patent/CN205223353U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676528A (en) * | 2015-11-06 | 2017-05-17 | 陶克（苏州）机械设备有限公司 | Regenerative device and method for nitric acid type solder stripping wastewater |
| CN108557870A (en) * | 2018-05-07 | 2018-09-21 | 昆山市新溢诚电子科技有限公司 | Metastannic acid retracting device in a kind of stripping tin waste liquid |
| CN108557871A (en) * | 2018-05-07 | 2018-09-21 | 昆山市新溢诚电子科技有限公司 | A kind of metastannic acid process units and metastannic acid production method |
| CN110055537A (en) * | 2019-05-22 | 2019-07-26 | 惠州市臻鼎环保科技有限公司 | A kind of method for reclaiming of PCB nitric acid spent solder stripper |
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Address after: 215000, No. 6, Taishan Road, hi tech Zone, Jiangsu, Suzhou, 2 Patentee after: Environmental protection science and Technology (Suzhou) Co., Ltd. Address before: 215000, No. 6, Taishan Road, Suzhou hi tech Development Zone, Jiangsu, Suzhou, 2 Patentee before: Tao Ke (Suzhou) Machinery Equipment Co., Ltd. |