CN208472192U - A kind of environment-friendly type stripping tin liquor cyclic utilization system - Google Patents
A kind of environment-friendly type stripping tin liquor cyclic utilization system Download PDFInfo
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- CN208472192U CN208472192U CN201820665908.8U CN201820665908U CN208472192U CN 208472192 U CN208472192 U CN 208472192U CN 201820665908 U CN201820665908 U CN 201820665908U CN 208472192 U CN208472192 U CN 208472192U
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- tin
- tin liquor
- hydrogen peroxide
- environment
- stripping
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Abstract
The utility model discloses a kind of environment-friendly types to shell tin liquor cyclic utilization system, it is characterised in that: the environment-friendly type stripping tin liquor cyclic utilization system includes centrifuge, tin and stripping tin liquor reactive tank, hydrogen peroxide adding set, copper accumulator tank.Equipped with hydrogen peroxide and stripping tin liquor in tin and stripping tin liquor reactive tank, centrifuge is connect with stripping tin liquor reactive tank, for removing tin and shelling the metastannic acid in tin liquor reactive tank.Using the stripping tin liquor of hydrogen peroxide Organic Acid System, completes tin and strip, shell tin liquor cycling and reutilization, reduce waste water and exhausted air quantity, environmental protection and energy saving.
Description
Technical field
The utility model relates to shell tin liquor stripping tin technical field, in particular to a kind of environment-friendly type stripping tin liquor, which recycles, is
System.
Background technique
The divesting technology of tin metal generallys use the stripping tin liquor that nitric acid is principal component at present.Nitric acid is the stripping tin liquor of principal component
Nitric acid decomposes when generating chemical reaction, generates penetrating odor, operating environment is poor, is unfavorable for the safety and environment of operator
Purification.As environmental protection administration is more and more tighter to controls such as ammonia nitrogens in industrial wastewater discharge, and in route board industry to ammonium hydroxide,
Nitric acid usage amount is still very big, and environmental protection pressure is very big.The waste liquid that this quadrat method generates is due to containing a large amount of nitric acid, wastewater treatment
It is difficult.Tin metal is dissolved in nitric acid, and recovery process is complicated, and wasting manpower and material resources be easy to cause environmental pollution.Existing route
In plate factory shell tin waste liquid be recycled by producer, but shell tin after washing nitrogen content allow to discharge considerably beyond environmental protection administration it is dense
It spends, is to discharge or handled outside entrusting after dilution is handled in nitrogenous highly concentrated waste water major part circuit board plant, two methods cost is all
It is higher, and there is environmentally friendly risk.And shell tin liquor in existing stripping tin method and be not easy to recycle, waste of resource.
In order to solve the problems in the prior art, it needs to research and develop a kind of environment-friendly type that nitrogen content is low stripping tin liquor and recycles and be
System.
Utility model content
The utility model aim is: overcoming the shortcomings of the prior art, solves problems of the prior art, provide
A kind of environment-friendly type stripping tin liquor cyclic utilization system is completed tin and is stripped using the stripping tin liquor of hydrogen peroxide Organic Acid System, and stripping tin liquor is followed
Ring recycles, and reduces waste water and exhausted air quantity, environmental protection and energy saving.
The technical solution of the utility model are as follows:
A kind of environment-friendly type stripping tin liquor cyclic utilization system, it is characterised in that: it includes centrifuge, and tin is reacted with stripping tin liquor
Equipped with hydrogen peroxide and stripping tin liquor in slot, copper recyclable device, tin and stripping tin liquor reactive tank, centrifuge is connect with stripping tin liquor reactive tank,
For removing tin and shelling the metastannic acid in tin liquor reactive tank.
Preferably, the environment-friendly type stripping tin liquor cyclic utilization system further includes cupric electrolysis recyclable device, cupric electrolysis recycling dress
It sets and is connected to tin with stripping tin liquor reactive tank, for removing tin and shelling the copper ion in tin liquor reactive tank.
Preferably, the environment-friendly type stripping tin liquor cyclic utilization system further includes hydrogen peroxide adding set, for supplementing addition
Hydrogen peroxide, hydrogen peroxide adding set are connected to tin with stripping tin liquor reactive tank.
Preferably, the environment-friendly type stripping tin liquor cyclic utilization system further includes hydrogen peroxide on-line analysis device, and hydrogen peroxide exists
Line analysis device is connect with hydrogen peroxide automatic adding device and tin with stripping tin liquor reactive tank, for analyzing hydrogen peroxide surplus, and
Start hydrogen peroxide automatic adding device according to hydrogen peroxide surplus and adds hydrogen peroxide automatically.
Preferably, the centrifuge be link-suspended basket centrifuge, 600-1200 revolutions per seconds of revolving speed.
Preferably, the centrifuge speed is 800-1200 revolutions per seconds.
Preferably, cupric electrolysis recyclable device is provided with DC rectifier machine.
The advantages of the utility model:
1, environment-friendly type stripping tin liquor cyclic utilization system disclosed in the utility model separates stripping tin by using centrifuge and produces
Raw metastannic acid shells tin liquor energy cycling and reutilization, environmental protection, save the cost.
2, washing waste water is free of ammonia nitrogen after environment-friendly type stripping tin liquor cyclic utilization system stripping tin disclosed in the utility model, can
It is good for the environment with direct emission without especially processing, saves environmental protection treatment cost.
3, environment-friendly type stripping tin liquor cyclic utilization system disclosed in the utility model eliminates stripping using cupric electrolysis recyclable device
The copper ion that ground copper corrosion introduces when tin completes recycling for stripping tin liquor, reduces discharge of wastewater.
4, environment-friendly type stripping tin liquor cyclic utilization system disclosed in the utility model consumes hydrogen peroxide and hydrogen peroxide easily decomposes,
So more environmentally friendly.
5, environment-friendly type disclosed in the utility model stripping tin liquor cyclic utilization system using hydrogen peroxide on-line analysis device and
Hydrogen peroxide automatic adding device controls hydrogen peroxide concentration and stablizes, it is ensured that stripping tin rate is consistent.High degree of automation simultaneously saves people
Power.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the schematic diagram of environment-friendly type stripping tin liquor cyclic utilization system described in the utility model.
Specific embodiment
With reference to the accompanying drawing and technical solutions of the utility model are described in detail in preferred embodiment.
As shown in Figure 1, the utility model discloses a kind of environment-friendly type stripping tin liquor cyclic utilization system comprising centrifuge, tin
With stripping tin liquor reactive tank, copper recyclable device, tin and stripping tin liquor reactive tank in equipped with hydrogen peroxide and stripping tin liquor, centrifuge with shell tin liquor
Reactive tank connection, for removing tin and shelling the metastannic acid in tin liquor reactive tank.It is complete using the stripping tin liquor of hydrogen peroxide Organic Acid System
It is stripped at tin, shells tin liquor cycling and reutilization, reduce waste water and exhausted air quantity, environmental protection and energy saving.Environment-friendly type disclosed in the utility model
Washing waste water is free of ammonia nitrogen after shelling tin liquor cyclic utilization system stripping tin, without especially processing, can be conducive to ring with direct emission
It protects, saves environmental protection treatment cost.
Preferably, the environment-friendly type stripping tin liquor cyclic utilization system further includes cupric electrolysis recyclable device, cupric electrolysis recycling dress
It sets and is connected to stripping tin liquor reactive tank, for removing tin and shelling the copper ion in tin liquor reactive tank.Disappeared using cupric electrolysis recyclable device
The copper ion that ground copper corrosion introduces when except stripping tin, completes recycling for stripping tin liquor, reduces discharge of wastewater.
Preferably, the environment-friendly type stripping tin liquor cyclic utilization system further includes hydrogen peroxide adding set, for supplementing addition
Hydrogen peroxide, hydrogen peroxide adding set are connected to tin with stripping tin liquor reactive tank.Environment-friendly type stripping tin liquor disclosed in the utility model is followed
Ring is easily decomposed using system consumption hydrogen peroxide and hydrogen peroxide, so more environmentally friendly.
Preferably, the environment-friendly type stripping tin liquor cyclic utilization system further includes hydrogen peroxide on-line analysis device, and hydrogen peroxide exists
Line analysis device is connect with hydrogen peroxide automatic adding device and tin with stripping tin liquor reactive tank, for analyzing hydrogen peroxide surplus, and
Start hydrogen peroxide automatic adding device according to hydrogen peroxide surplus and adds hydrogen peroxide automatically.Environment-friendly type disclosed in the utility model
It is steady using hydrogen peroxide on-line analysis device and hydrogen peroxide automatic adding device control hydrogen peroxide concentration to shell tin liquor cyclic utilization system
It is fixed, it is ensured that stripping tin rate is consistent.High degree of automation simultaneously saves manpower.
Preferably, the centrifuge be link-suspended basket centrifuge, 600-1200 revolutions per seconds of revolving speed.Metastannic acid can be efficiently separated
And copper ion, recycling for stripping tin liquor is completed, discharge of wastewater is reduced.
Preferably, the centrifuge speed is 800-1200 revolutions per seconds.It is further kept completely separate metastannic acid and copper ion, it is complete
At recycling for stripping tin liquor.
Preferably, cupric electrolysis recyclable device is provided with DC rectifier machine.
A kind of environment-friendly type stripping tin liquor circulation utilization method, it is characterised in that: it recycles benefit using aforementioned environment-friendly type stripping tin liquor
With system comprising following steps: one, tin reacts in tin and stripping tin liquor reactive tank with stripping tin liquor generates metastannic acid；Two, it uses
Centrifuge is separated the metastannic acid in tin liquor is shelled；Three, generation is inclined with the reaction was continued in stripping tin liquor reactive tank in tin for tin and stripping tin liquor
Stannic acid.Environment-friendly type stripping tin liquor cyclic utilization system disclosed in the utility model separates the inclined of stripping tin generation by using centrifuge
Stannic acid shells tin liquor energy cycling and reutilization, environmental protection, save the cost.
Preferably, with after stripping tin liquor fully reacting, organic acid can aoxidize exposed copper face with hydrogen peroxide tin metal
It when corrosion, is removed using cupric electrolysis recyclable device by the copper ion in tin liquor is shelled, stripping tin liquor can be recycled.The utility model institute
The copper that ground copper corrosion introduces when disclosed environment-friendly type stripping tin liquor cyclic utilization system eliminates stripping tin using cupric electrolysis recyclable device
Ion completes recycling for stripping tin liquor, reduces discharge of wastewater.
Environment-friendly type stripping tin liquor cyclic utilization system processing system and method disclosed in the utility model are simple, reduce tin and return
Harvest sheet, so that production cost is greatly lowered in circuit board plant.
The liquid waste processing of traditional nitric acid stripping tin method, nitric acid are neutralized using NAOH, and tin mud (metastannic acid) separation, exhaust gas can not
It disposes completely.
Traditional industry wet process metastannic acid uses following equation for reaction principle:
Metastannic acid generates 3Sn+4HNO3+H2O→3H2SnO3+4NO
Exhaust-gas treatment 4NO+O2→2NO2
Exhaust-gas treatment 2NO2+Na2CO3→NaNO2+NaNO3+CO2
This obtained waste liquid of conventional method needs to carry out denitrogenation processing, at high cost, not environmentally.
Tin described in the utility model uses following chemical principle with reacting in stripping tin liquor reactive tank,
Sn+H2O2+2CH3SO3H→Sn(CH3SO3)2+2H2O
Sn(CH3SO3)2+H2O2+H2O→H2SnO3+2CH3SO3H
Metastannic acid in stripping tin liquor is extracted by the above chemical principle, and it is de- to neutralize centrifugal drying as metastannic acid semi-finished product
Finished product is metastannic acid powder after water.Washing waste water is free of ammonia nitrogen after shelling tin, without especially processing, can be conducive to direct emission
Environmental protection treatment cost is saved in environmental protection.It shells tin ability to stablize, the content of tin in stripping tin time control pharmacy bath will not be because of tin in dipping
Content increases and causes to shell the decline of tin ability.
Tin reacts production metastannic acid with stripping tin liquor, and as metastannic acid content improves, reaction rate decline is until be unable to complete
Thoroughly strip tin layers.The utility model is separated using centrifuge by the metastannic acid in tin liquor is shelled, and metastannic acid in tin liquor is shelled after separation
Content is lower than 1%, and stripping tin liquor can reach recycling.
After tin metal and stripping tin liquor fully reacting, organic acid and hydrogen peroxide can carry out oxidation corrosion to exposed copper face, when
When content of copper ion is greater than 7g/L, stripping tin rate decline influences stripping tin effect.The utility model will using cupric electrolysis recyclable device
The copper ion removal in tin liquor is shelled, stripping tin liquor can reach recycling.
And the environment-friendly type stripping tin liquor cyclic utilization system and circulation utilization method of the utility model, so that stripping tin liquor circulation is again
It utilizes, further reduces waste water and exhausted air quantity, environmental protection and energy saving.
Still there are many embodiment, all technologies formed using equivalents or equivalent transformation for the utility model
Scheme is all fallen within the protection scope of the utility model.
Claims (7)
1. a kind of environment-friendly type shells tin liquor cyclic utilization system, it is characterised in that: it include centrifuge, tin and stripping tin liquor reactive tank,
It is connect equipped with hydrogen peroxide and stripping tin liquor, centrifuge and tin with stripping tin liquor reactive tank in copper recyclable device, tin and stripping tin liquor reactive tank,
For removing tin and shelling the metastannic acid in tin liquor reactive tank.
2. environment-friendly type according to claim 1 shells tin liquor cyclic utilization system, it is characterised in that: the environment-friendly type shells tin liquor
Cyclic utilization system further includes cupric electrolysis recyclable device, and cupric electrolysis recyclable device is connected to tin with stripping tin liquor reactive tank, with making a return journey
Except the copper ion in tin and stripping tin liquor reactive tank.
3. environment-friendly type according to claim 1 shells tin liquor cyclic utilization system, it is characterised in that: the environment-friendly type shells tin liquor
Cyclic utilization system further includes hydrogen peroxide adding set, for supplementing addition hydrogen peroxide, hydrogen peroxide adding set and tin and stripping tin
The connection of liquid reactive tank.
4. environment-friendly type according to claim 3 shells tin liquor cyclic utilization system, it is characterised in that: the environment-friendly type shells tin liquor
Cyclic utilization system further includes hydrogen peroxide on-line analysis device, hydrogen peroxide on-line analysis device and hydrogen peroxide automatic adding device and
Tin is connect with stripping tin liquor reactive tank, for analyzing hydrogen peroxide surplus, and is started hydrogen peroxide according to hydrogen peroxide surplus and is added automatically
Feeder apparatus adds hydrogen peroxide automatically.
5. environment-friendly type according to claim 1 shells tin liquor cyclic utilization system, it is characterised in that: the centrifuge is tripodia
Formula centrifuge, 600-1200 revolutions per seconds of revolving speed.
6. environment-friendly type according to claim 5 shells tin liquor cyclic utilization system, it is characterised in that: the centrifuge speed is
800-1200 revolutions per seconds.
7. environment-friendly type according to claim 2 shells tin liquor cyclic utilization system, it is characterised in that: cupric electrolysis recyclable device is set
It is equipped with DC rectifier machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665908.8U CN208472192U (en) | 2018-05-07 | 2018-05-07 | A kind of environment-friendly type stripping tin liquor cyclic utilization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665908.8U CN208472192U (en) | 2018-05-07 | 2018-05-07 | A kind of environment-friendly type stripping tin liquor cyclic utilization system |
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| CN208472192U true CN208472192U (en) | 2019-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560001A (en) * | 2018-05-07 | 2018-09-21 | 昆山市新溢诚电子科技有限公司 | A kind of environment-friendly type stripping tin liquor cyclic utilization system and circulation utilization method |
-
2018
- 2018-05-07 CN CN201820665908.8U patent/CN208472192U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560001A (en) * | 2018-05-07 | 2018-09-21 | 昆山市新溢诚电子科技有限公司 | A kind of environment-friendly type stripping tin liquor cyclic utilization system and circulation utilization method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20190507 |