CN105238931B - A kind of evaporated mother liquor continuous washing piece-rate system of spent solder stripper and its using method - Google Patents
A kind of evaporated mother liquor continuous washing piece-rate system of spent solder stripper and its using method Download PDFInfo
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- CN105238931B CN105238931B CN201510706571.1A CN201510706571A CN105238931B CN 105238931 B CN105238931 B CN 105238931B CN 201510706571 A CN201510706571 A CN 201510706571A CN 105238931 B CN105238931 B CN 105238931B
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
A kind of evaporated mother liquor continuous washing piece-rate system of spent solder stripper, including a stock solution groove and four rinsing bowls；Stock solution groove and four rinsing bowls are put in order successively, and its horizontal level placed is raised from front to back successively, and the liquid outlet of latter rinsing bowl is located above the feed(raw material)inlet of previous stock solution groove or rinsing bowl；Stock solution groove and the above solid outlet of three rinsing bowls are connected to same sludge lifting pump；The outlet of sludge lifting pump is connected at the feed(raw material)inlet of four rinsing bowls by pipeline；The liquid outlet of stock solution groove is connected to copper nitrate electrowinning process；The solid outlet of the 4th rinsing bowl is connected to dissolving and puies forward tin system；The feed(raw material)inlet of stock solution groove connects the evaporated mother liquor of spent solder stripper；The feed(raw material)inlet connection tap water of four rinsing bowls.Present device is simple, realizes gravity flow and the gradient water of water, using the at utmost amount of conserving water, it is ensured that nitric acid acidity in copper nitrate, carries out at normal temperatures, effective save energy so that system separation costs are relatively low.
Description
Technical field
The present invention relates to electron wastes technical field of comprehensive utilization, more particularly, to a kind of discarded circuit board in useless move back
The new separation equipment of tin liquor.
Background technology
With the fast development of electronics industry, a large amount of PCB processing factories are emerged in large numbers, according to statistics, China is annual to consume tin stripper
Up to 6 × 104m3, and with the speed increase of 15%-18%.If so huge tin stripper amount, will necessarily without arbitrarily discharge is processed
Greatly pollution is caused to water resource and ecological environment.
In a large amount of waste liquids that PCB enterprises produce, the harm of spent solder stripper is maximum.Waste liquid Sn containing heavy metal is higher, generally
100-150g/L, carries other heavy metal Cus, generally 20-50g/L secretly, and residual acid is big, and general residual nitric acid amount is 8%-15%,
Also the mankind and environment are had very big containing a number of heterocyclic compound, poly-ring aromatic compoundses, polymer etc. simultaneously
Harm；Its complicated component, intractability are high, treatment cost is high, are not still given up by preferably solving of receiving of business circles so far
The industrialization technology of tin stripping liquid problem.
Mainly there are two kinds currently for the processing method of spent solder stripper：Thoroughly facture and Regeneration Treatment method, are thoroughly processed
Method neutralizes waste water, precipitation of heavy metals, and to the thorough destruction of waste liquid, which has the disadvantage that the material such as alkali consumption is big, and discharged wastewater met the national standard is difficult
Degree is big, and the filtering residue separating treatment workload obtained by neutralization is big, high cost, and data utilization rate is low；Regeneration Treatment method removes copper and tin
After etc. heavy metal ion, the compositions such as nitric acid and iron ion are suitably added so as to can continue to play a role, or using useless
Useful component in tin stripping liquid, as the raw material for producing other chemical products, enables spent solder stripper to be comprehensively utilized.
The content of the invention
For the problems referred to above that prior art is present, the applicant provides a kind of continuous water of evaporated mother liquor of spent solder stripper
Wash piece-rate system and its using method.Present device is simple, realizes the gravity flow of water using head tank, and realizes gradient water,
Using the at utmost amount of conserving water, it is ensured that nitric acid acidity in copper nitrate, carry out at normal temperatures, effective save energy so that body
It is that separation costs are relatively low.
Technical scheme is as follows：
A kind of evaporated mother liquor continuous washing piece-rate system of spent solder stripper, including a stock solution groove and four rinsing bowls；Institute
State stock solution groove and rinsing bowl is both provided with the feed(raw material)inlet at the top of which and liquid outlet and solid positioned at its bottom go out
Mouthful；
The stock solution groove and four rinsing bowls are put in order successively, and its horizontal level placed is risen from front to back successively
Height, the liquid outlet of latter rinsing bowl are located above the feed(raw material)inlet of previous stock solution groove or rinsing bowl；
The stock solution groove and the above solid outlet of three rinsing bowls are connected to same sludge lifting pump；The sludge
The outlet of elevator pump is connected at the feed(raw material)inlet of four rinsing bowls by pipeline；
The liquid outlet of the stock solution groove is connected to copper nitrate electrowinning process；The solid outlet of the 4th rinsing bowl is connected to
Dissolving puies forward tin system；
The feed(raw material)inlet of the stock solution groove connects the evaporated mother liquor of spent solder stripper；The feed(raw material)inlet of four rinsing bowls connects
Connect tap water.
A kind of spent solder stripper evaporated mother liquor continuous washing separation method, spent solder stripper evaporated mother liquor enter from the raw material of stock solution groove
Mouthful enter, while add flocculant, evaporated mother liquor through flocculation sediment, is separated into the clear liquid containing copper nitrate and partially in stock solution groove
Stannic acid mud；The clear liquid flows out from the liquid outlet of stock solution groove and is connected to copper nitrate electrowinning process, and the metastannic acid mud is from stock solution
The solid outlet of groove is discharged and is connected to sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the first rinsing bowl, while adding water and flocculation
Agent, through flocculation sediment in the first rinsing bowl, is separated into the clear liquid containing copper nitrate and metastannic acid mud；The clear liquid is from the first water
The liquid outlet of washing trough flows out the feed(raw material)inlet of connection stock solution groove, and the metastannic acid mud is discharged from the solid outlet of the first rinsing bowl
It is connected to sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the second rinsing bowl, while adding water and flocculation
Agent, through flocculation sediment in the second rinsing bowl, is separated into the clear liquid containing copper nitrate and metastannic acid mud；The clear liquid is from the second water
The liquid outlet of washing trough flows out the feed(raw material)inlet of the first rinsing bowl of connection, solid outlet of the metastannic acid mud from the second rinsing bowl
Discharge is connected to sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the 3rd rinsing bowl, while adding water and flocculation
Agent, through flocculation sediment in the 3rd rinsing bowl, is separated into the clear liquid containing copper nitrate and metastannic acid mud；The clear liquid is from the 3rd water
The liquid outlet of washing trough flows out the feed(raw material)inlet of the second rinsing bowl of connection, solid outlet of the metastannic acid mud from the 3rd rinsing bowl
Discharge is connected to sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the 4th rinsing bowl, while adding water and flocculation
Agent, through flocculation sediment in the 4th rinsing bowl, is separated into the clear liquid containing copper nitrate and metastannic acid mud；The clear liquid is from the 4th water
The liquid outlet of washing trough flows out the feed(raw material)inlet of the 3rd rinsing bowl of connection, solid outlet of the metastannic acid mud from the 4th rinsing bowl
Discharge is connected to dissolving and puies forward tin system.
The present invention is beneficial to be had technical effect that：
The present invention by simple flocculating sedimentation, head tank water gravity flow-gradient water, sludge lifting pump, by nitric acid and copper
Separate with metastannic acid, efficiently separated the complex system of spent solder stripper, essential condition is provided for resource respectively.The present invention
Equipment is simple, realizes the gravity flow of water using head tank, and realizes gradient water, using the at utmost amount of conserving water, it is ensured that nitre
Nitric acid acidity in sour copper, is carried out at normal temperatures, effective save energy so that system separation costs are relatively low.After separated, copper nitrate
Clear liquid enters electrolysis process, can obtain metallic copper and dust technology product；Metastannic acid mud carries process of tin into dissolving, can obtain
Spongy tin product.
Description of the drawings
Fig. 1 is the equipment connecting relation figure of this continuous washing piece-rate system.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is specifically described.
As shown in figure 1, the evaporated mother liquor continuous washing piece-rate system of the spent solder stripper of present invention offer, including a stock solution
Groove 6 and four rinsing bowls：First rinsing bowl 1, the second rinsing bowl 2, the 3rd rinsing bowl 3, the 4th rinsing bowl 4.Stock solution groove 6 and washing
Groove 1～4 be both provided with the feed(raw material)inlet 61 at the top of which, 11,21,31,41, and the liquid outlet 62 positioned at its bottom,
12nd, 22,32,42 and solid outlet 63,13,23,33,43.
Stock solution groove 6 and the first rinsing bowl 1, the second rinsing bowl 2, the 3rd rinsing bowl 3, the 4th rinsing bowl 4 are put in order successively
Put, its horizontal level placed is raised from front to back successively, the liquid outlet of latter rinsing bowl be located at previous stock solution groove or
Above the feed(raw material)inlet of person's rinsing bowl；So as to the gravity flow of water is realized by head tank.
Stock solution groove 6 and the first rinsing bowl 1, the second rinsing bowl 2, the solid outlet 63,13,23,33 of the 3rd rinsing bowl 3 connect
It is connected to same sludge lifting pump 5；The outlet of sludge lifting pump 5 by pipeline be connected to the first rinsing bowl 1, the second rinsing bowl 2,
At 3rd rinsing bowl 3, the feed(raw material)inlet 11,21,31,41 of the 4th rinsing bowl 4.
The liquid outlet 62 of stock solution groove 6 is connected to copper nitrate electrowinning process；The solid outlet 43 of the 4th rinsing bowl 4 is connected to
Dissolving puies forward tin system.
The evaporated mother liquor and flocculant of the connection of feed(raw material)inlet 61 spent solder stripper of stock solution groove 6；First rinsing bowl 1, the second water
Washing trough 2, the 3rd rinsing bowl 3, the connection tap water of feed(raw material)inlet 11,21,31,41 of the 4th rinsing bowl 4 and flocculant.Flocculant is
PAMC.
The invention provides a kind of spent solder stripper evaporated mother liquor continuous washing separation method：
（1）Spent solder stripper evaporated mother liquor is entered from the feed(raw material)inlet 61 of stock solution groove 6, while adding flocculant, evaporated mother liquor
Through flocculation sediment in stock solution groove 6, the clear liquid containing copper nitrate and metastannic acid mud are separated into；Liquid discharge of the clear liquid from stock solution groove 6
Mouth 62 flows out and is connected to copper nitrate electrowinning process, and metastannic acid mud is discharged from the solid outlet 63 of stock solution groove 6 and is connected to sludge lifting
Pump 5；
（2）Metastannic acid mud is put into by sludge lifting pump 5 from the feed(raw material)inlet 11 of the first rinsing bowl 1, while adding water and wadding
Solidifying agent, through flocculation sediment in the first rinsing bowl 1, is separated into the clear liquid containing copper nitrate and metastannic acid mud；Clear liquid is from the first water
The liquid outlet 12 of washing trough 1 flows out the feed(raw material)inlet 61 of connection stock solution groove 6, solid outlet of the metastannic acid mud from the first rinsing bowl 1
13 discharges are connected to sludge lifting pump 5；
（3）Metastannic acid mud is put into by sludge lifting pump 5 from the feed(raw material)inlet 21 of the second rinsing bowl 2, while adding water and wadding
Solidifying agent, through flocculation sediment in the second rinsing bowl 2, is separated into the clear liquid containing copper nitrate and metastannic acid mud；Clear liquid is from the second water
The liquid outlet 22 of washing trough 2 flows out the feed(raw material)inlet 11 of the first rinsing bowl 1 of connection, solid of the metastannic acid mud from the second rinsing bowl 2
Outlet 23 is discharged and is connected to sludge lifting pump 5；
（4）Metastannic acid mud is put into by sludge lifting pump 5 from the feed(raw material)inlet 31 of the 3rd rinsing bowl 3, while adding water and wadding
Solidifying agent, through flocculation sediment in the 3rd rinsing bowl 3, is separated into the clear liquid containing copper nitrate and metastannic acid mud；Clear liquid is from the 3rd water
The liquid outlet 32 of washing trough 3 flows out the feed(raw material)inlet 21 of the second rinsing bowl 2 of connection, solid of the metastannic acid mud from the 3rd rinsing bowl 3
Outlet 33 is discharged and is connected to sludge lifting pump 5；
（5）Metastannic acid mud is put into by sludge lifting pump 5 from the feed(raw material)inlet 41 of the 4th rinsing bowl 4, while adding water and wadding
Solidifying agent, through flocculation sediment in the 4th rinsing bowl 4, is separated into the clear liquid containing copper nitrate and metastannic acid mud；Clear liquid is from the 4th water
The liquid outlet 42 of washing trough 4 flows out the feed(raw material)inlet 31 of the 3rd rinsing bowl 3 of connection, solid of the metastannic acid mud from the 4th rinsing bowl 4
43 discharge of outlet is connected to dissolving and puies forward tin system.
（6）Said process can repeat as needed.Copper nitrate clear liquid can be realized flowing automatically from high to low, repeatedly wash
Wash, it is ensured that the nitric acid acidity of copper nitrate clear liquid electrolyte；, through repeatedly washing, metastannic acid mud is not for spent solder stripper evaporated mother liquor
Containing nitric acid and cupra matter, can improve and subsequently put forward stannum quality.
After one cycle, only new tap water need to be added in 4 grooves are washed, can at utmost save water resource.On
State step（1）Can repeat to do twice, then be further continued for carrying out step（2）~（5）.
Described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the present invention
In embodiment, the every other enforcement obtained under the premise of creative work is not made by those of ordinary skill in the art
Example, belongs to the scope of protection of the invention.
Claims (1)
1. a kind of spent solder stripper evaporated mother liquor continuous washing separation method, it is characterised in that using continuous washing piece-rate system, institute
The system of stating includes a stock solution groove and four rinsing bowls；The stock solution groove and rinsing bowl are both provided with the raw material at the top of which and enter
Mouthful, and positioned at the liquid outlet and solid outlet of its bottom；
The stock solution groove and four rinsing bowls are put in order successively, and its horizontal level placed is raised from front to back successively, after
The liquid outlet of one rinsing bowl is located above the feed(raw material)inlet of previous stock solution groove or rinsing bowl；
The stock solution groove and the above solid outlet of three rinsing bowls are connected to same sludge lifting pump；The sludge lifting
The outlet of pump is connected at the feed(raw material)inlet of four rinsing bowls by pipeline；
The liquid outlet of the stock solution groove is connected to copper nitrate electrowinning process；The solid outlet of the 4th rinsing bowl is connected to dissolving
Put forward tin system；
The feed(raw material)inlet of the stock solution groove connects the evaporated mother liquor of spent solder stripper；The feed(raw material)inlet connection of four rinsing bowls is certainly
Water；
Spent solder stripper evaporated mother liquor is entered from the feed(raw material)inlet of stock solution groove, while adding flocculant, evaporated mother liquor is in stock solution groove
Through flocculation sediment, the clear liquid containing copper nitrate and metastannic acid mud are separated into；The clear liquid flows out from the liquid outlet of stock solution groove and connects
Copper nitrate electrowinning process is connected to, the metastannic acid mud is discharged from the solid outlet of stock solution groove and is connected to sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the first rinsing bowl, while water and flocculant are added,
Through flocculation sediment in first rinsing bowl, the clear liquid containing copper nitrate and metastannic acid mud are separated into；The clear liquid is from the first rinsing bowl
Liquid outlet flow out the feed(raw material)inlet of connection stock solution groove, the metastannic acid mud discharges connection from the solid outlet of the first rinsing bowl
To sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the second rinsing bowl, while water and flocculant are added,
Through flocculation sediment in second rinsing bowl, the clear liquid containing copper nitrate and metastannic acid mud are separated into；The clear liquid is from the second rinsing bowl
Liquid outlet flow out the feed(raw material)inlet of the first rinsing bowl of connection, the metastannic acid mud is discharged from the solid outlet of the second rinsing bowl
It is connected to sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the 3rd rinsing bowl, while water and flocculant are added,
Through flocculation sediment in 3rd rinsing bowl, the clear liquid containing copper nitrate and metastannic acid mud are separated into；The clear liquid is from the 3rd rinsing bowl
Liquid outlet flow out the feed(raw material)inlet of the second rinsing bowl of connection, the metastannic acid mud is discharged from the solid outlet of the 3rd rinsing bowl
It is connected to sludge lifting pump；
Metastannic acid mud is put into by the sludge lifting pump from the feed(raw material)inlet of the 4th rinsing bowl, while water and flocculant are added,
Through flocculation sediment in 4th rinsing bowl, the clear liquid containing copper nitrate and metastannic acid mud are separated into；The clear liquid is from the 4th rinsing bowl
Liquid outlet flow out the feed(raw material)inlet of the 3rd rinsing bowl of connection, the metastannic acid mud is discharged from the solid outlet of the 4th rinsing bowl
It is connected to dissolving and puies forward tin system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706571.1A CN105238931B (en) | 2015-10-27 | 2015-10-27 | A kind of evaporated mother liquor continuous washing piece-rate system of spent solder stripper and its using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706571.1A CN105238931B (en) | 2015-10-27 | 2015-10-27 | A kind of evaporated mother liquor continuous washing piece-rate system of spent solder stripper and its using method |
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| Publication Number | Publication Date |
|---|---|
| CN105238931A CN105238931A (en) | 2016-01-13 |
| CN105238931B true CN105238931B (en) | 2017-03-29 |
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| CN201510706571.1A Active CN105238931B (en) | 2015-10-27 | 2015-10-27 | A kind of evaporated mother liquor continuous washing piece-rate system of spent solder stripper and its using method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114804458B (en) * | 2022-04-22 | 2023-02-07 | 盛隆资源再生（无锡）有限公司 | Recycling method of waste tin stripping liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351344A (en) * | 2011-07-08 | 2012-02-15 | 无锡市霄鹰环境科技有限公司 | Tin-bearing waste liquid recovery system and recovery technology |
| CN103060844A (en) * | 2012-12-21 | 2013-04-24 | 广东工业大学 | Resource recovering method for nitric acid type waste solder stripping solution |
| CN205133698U (en) * | 2015-10-27 | 2016-04-06 | 盛隆资源再生（无锡）有限公司 | Piece -rate system is washed in succession to useless distillation mother liquor that moves back tin liquor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2968809B2 (en) * | 1989-12-26 | 1999-11-02 | 株式会社イデヤ | Cleaning water circulation treatment equipment for solder dip machine |
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- 2015-10-27 CN CN201510706571.1A patent/CN105238931B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351344A (en) * | 2011-07-08 | 2012-02-15 | 无锡市霄鹰环境科技有限公司 | Tin-bearing waste liquid recovery system and recovery technology |
| CN103060844A (en) * | 2012-12-21 | 2013-04-24 | 广东工业大学 | Resource recovering method for nitric acid type waste solder stripping solution |
| CN205133698U (en) * | 2015-10-27 | 2016-04-06 | 盛隆资源再生（无锡）有限公司 | Piece -rate system is washed in succession to useless distillation mother liquor that moves back tin liquor |
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