CN209024646U - A kind of PCB moves back tin system - Google Patents
A kind of PCB moves back tin system Download PDFInfo
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- CN209024646U CN209024646U CN201820856552.6U CN201820856552U CN209024646U CN 209024646 U CN209024646 U CN 209024646U CN 201820856552 U CN201820856552 U CN 201820856552U CN 209024646 U CN209024646 U CN 209024646U
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- tin
- pcb
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- waste liquor
- removal waste
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Abstract
The utility model discloses a kind of PCB to move back tin system, and system includes: upper process device, for carrying out preparatory processing to PCB；One section is moved back tin device, moves back tin processing for the first time for carrying out to PCB；Water washing device, for washing to moving back the PCB after tin；Two sections are moved back tin device, for being moved back tin processing for the second time to PCB；Lower process device, for moved back tin processing PCB carry out electrical measurement, it is anti-welding and surface treatment；Wherein, it moves back tin device and is additionally provided with a tin removal waste liquor recyclable device for described one section.Compared with prior art, a kind of PCB of the utility model moves back tin system, and using totally enclosed type system, no waste water, exhaust gas and waste are generated.Increase by one section in original etching section and move back automatic cycle running after tin section, carries out the recycling and reproduction operation of tin stripping liquid, move back tin effect stability, superior performance, long service life can create abundant economic benefit.
Description
Technical field
Move back process of tin technical field the utility model relates to PCB more particularly to a kind of couple of PCB move back in process of tin tin stripping liquid into
What row recycled moves back tin system.
Background technique
In dual platen or multilayer board manufacturing process, moving back tin is an essential process.With move back tin constantly into
Row, the concentration of tin will necessarily constantly rise in system, when the concentration of tin reaches a certain concentration if without processing,
The effect for moving back tin will be will affect.However, being all to discharge or be sold to waste water after simple process for the company of the overwhelming majority
The company of processing had both wasted a large amount of precious resources in this way for production company itself and has decreased economic benefit.It is logical
Cross the analysis to nitric acid spent solder stripper ingredient and Theil indices, the ingredient being primarily present be gel state α type or β type it is inclined
Stannic acid, nitric acid, ferric nitrate, copper nitrate and some micro corrosion inhibiter, the mass concentration of tin can be up to 60-100 grams/
It rises.Therefore, tin removal waste liquor can be described as a kind of resource of preciousness, be of great significance for recycling the inside metallic tin.
Utility model content
The purpose of this utility model is to provide a kind of PCB to move back tin system, and which solve move back nothing in process of tin to PCB at present
The technical issues of method is recycled tin removal waste liquor.
In order to achieve the above objectives, the technical solution that the utility model is proposed are as follows:
A kind of PCB moves back tin system comprising:
Upper process device, for carrying out preparatory processing to PCB；
One section is moved back tin device, moves back tin processing for the first time for carrying out to PCB；
Water washing device, for washing to moving back the PCB after tin；
Two sections are moved back tin device, for being moved back tin processing for the second time to PCB；
Lower process device, for moved back tin processing PCB carry out electrical measurement, it is anti-welding and surface treatment；
Wherein, it moves back tin device and is additionally provided with a tin removal waste liquor recyclable device for described one section.
Wherein, the tin removal waste liquor recyclable device includes:
Tin removal waste liquor collection device is collected for moving back one section the waste liquid after moving back tin in tin process；
Tin removal waste liquor pretreatment unit, for carrying out cooling pretreatment to the tin removal waste liquor of collection；
Equipment for separating liquid from solid, for pretreated tin removal waste liquor to be carried out solid and liquid separating treatment；
Reclamation set is adjusted, moves back tin device circulation for one section will to be returned to after the liquid phase addition regulator adjustment after separation
It utilizes.
Wherein, the tin removal waste liquor recyclable device further include: the electrorefining being connected on the equipment for separating liquid from solid
Slot, the refining cell to the solid phase after separation for being electrolysed to obtain metallic tin.
The tin removal waste liquor pretreatment unit includes: pretreatment pool, and is cooled down to the waste liquid in pretreatment pool
The compressor of tin is precipitated.
Wherein, it is additionally provided with one between the pretreatment pool and equipment for separating liquid from solid and is pneumatically isolated pump, it is described to be pneumatically isolated
Pump is for being drawn to equipment for separating liquid from solid for pretreated tin removal waste liquor.
Compared with prior art, a kind of PCB of the utility model moves back tin system, and using totally enclosed type system, no waste water gives up
Gas and waste generate.Increase by one section in original etching section and move back automatic cycle after tin section and operate, carries out the recycling and again of tin stripping liquid
Raw work, moves back tin effect stability, superior performance, long service life can create abundant economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of PCB of the utility model moves back tin system.
Fig. 2 is the tin removal waste liquor recyclable device partial structure diagram that a kind of PCB of the utility model moves back tin system.
Fig. 3 is a kind of flow chart for moving back tin method for moving back tin system of the utility model.
Fig. 4 is a kind of flow chart of devil liquor recovery step for moving back tin system of the utility model.
Specific embodiment
Below with reference to attached drawing, the utility model is further described in detail.
Fig. 1 and attached drawing 2 are please referred to, moves back tin system structural schematic diagram for a kind of PCB of the utility model, a kind of PCB is moved back
Tin system characterized by comprising
Upper process device 1, process device mainly includes the device for tentatively producing and processing PCB on this, wherein processing
Pcb board includes the technique of alkaline etch comprising moves back film and etching technics.
One section is moved back tin device 2, moves back tin processing for the first time for carrying out to PCB, namely then complete moving back after etching technics
Tin step.
Water washing device 3, for washing to moving back the PCB after tin；
Two sections are moved back tin device 4, and for being moved back tin processing for the second time to the PCB after washing, the tin layers on wiring board are to use
In protecting copper wire in alkaline etch, after etching away unwanted layers of copper, need again to strip to reveal tin layers
Copper wire out, to form the route on pcb board；And
Lower process device 5, the lower process device are used to carry out the secondary PCB moved back after tin electrical measurement, anti-welding and surface treatment.
Wherein, it moves back tin device 2 and is additionally provided with a tin removal waste liquor recyclable device 6 for described one section.
Wherein, the tin removal waste liquor recyclable device 6 includes:
Tin removal waste liquor collection device is collected for moving back one section the waste liquid after moving back tin in tin process；The tin removal waste liquor
Collection device includes: collecting tank 61, moves back tin treated tin removal waste liquor for collecting；And waste liquid holding vessel 62, by collecting tank
61 waste liquids collected are temporarily stored in be processed in waste liquid holding vessel.
Tin removal waste liquor pretreatment unit, for being pre-processed to the tin removal waste liquor of collection；Tin removal waste liquor pretreatment dress
Setting includes: pretreatment pool 63, and the compressor 66 of cooling treatment is carried out to the tin removal waste liquor in pretreatment pool 63, to give up
Tin Precipitation in liquid.
Equipment for separating liquid from solid 65, for pretreated tin removal waste liquor to be carried out solid and liquid separating treatment；In this reality
Applying equipment for separating liquid from solid 65 in example is filter press.
Reclamation set 67 is adjusted, moves back tin device 2 for one section will to be returned to after the liquid phase addition regulator adjustment after separation
It recycles.
Wherein, the tin removal waste liquor recyclable device 6 further include: the electrolysis essence being connected on the equipment for separating liquid from solid 65
Slot 68 is refined, the refining cell 68 to the solid phase after separation for being electrolysed to obtain metallic tin.
Wherein, one is additionally provided between the pretreatment pool 63 and equipment for separating liquid from solid 65 be pneumatically isolated pump 64, the gas
Dynamic separate pump 64 is used to pretreated tin removal waste liquor being drawn to equipment for separating liquid from solid.
Referring to attached drawing 3 and attached drawing 4, the present embodiment also discloses one kind and moves back tin method comprising following steps:
First step S1, tin processing is moved back to one section of PCB progress；
Second step S2, tin is moved back treated that tin removal waste liquor is recycled to one section；
Third step S3, PCB is washed；
4th step S4, tin processing is moved back to two sections of PCB progress after washing.
Wherein, the second step S2 includes:
Step 1 S21, it collects one section and moves back tin treated tin removal waste liquor；
Step 2 S22, the tin removal waste liquor of collection is pre-processed；
Step 3 S23, solid-liquid separation treatment is carried out to pretreated tin removal waste liquor；
Step 4 S24, it will be returned to one section after the liquid phase addition regulator adjustment after separation and move back tin device and recycle.
Wherein, after the step 3 S23 further include: be electrolysed the solid phase after separation to obtain the step of metallic tin
Suddenly.
Wherein, the regulator component added in the step 4 are as follows: nitric acid 15-25%, corrosion inhibiter 0.2-0.6%, surface
Activating agent 0.1-0.3%, additive 0.01-0.1%, surplus are water.
Wherein, the additive are as follows: one of methane sulfonic acid, Isonicotinic acid, nonylphenol polyoxyethylene ether are several
Kind mixture.
It is totally enclosed type system that the PCB of the present embodiment, which moves back tin system, and no waste water, exhaust gas and waste generate.The system is in original
There is one section of increase in etching section to move back tin section, rear automatic cycle running carries out the recycling and reproduction operation of tin stripping liquid, it is steady to move back tin effect
It is fixed；Its superior performance, long service life can create abundant economic benefit for the company used.
Its major function and feature performance are as follows: using after moving back tin process clean manufacturing, many benefits can be brought to PCB enterprise
Place.
1. moving back tin process to use after line clean manufacturing, discharging of waste liquid can be substantially reduced, because 80~95% tin is the
One section has carried out clean manufacturing, then the wastewater flow rate that second segment moves back copper-tin alloy is the 7%-15% of original total amount, while subtracting significantly
Production line brown NO is lacked2Generation, improve in-situ production environment, meet energy-saving and emission-reduction, the clean manufacturing of country's promotion
Spirit.
It is more stable that tin process quality is moved back by 2.PCB enterprise.
3. recycling reduces liquid medicine consumption, saves PCB enterprise and move back tin cost.
4. reducing original row for several times daily, changing the slot time, the manipulation strength of employee is alleviated, PCB is indirectly improved
The work efficiency of enterprise.
5. can get valuable by-product-block tin.
Above content, the only preferred embodiment of the utility model, are not intended to limit the embodiments of the present invention,
Those of ordinary skill in the art's central scope according to the present utility model and spirit can very easily carry out corresponding accommodation
Or modification, therefore the protection scope of the utility model should be subject to protection scope required by claims.
Claims (5)
1. a kind of PCB moves back tin system characterized by comprising
For carrying out the upper process device of preparatory processing to PCB；For to PCB carry out for the first time move back tin processing one section move back tin dress
It sets；For to the water washing device for moving back the PCB after tin and being washed；Two sections for being moved back tin processing for the second time to PCB are moved back tin
Device；For to moved back tin processing PCB carry out electrical measurement, it is anti-welding and surface treatment lower process device；
The output end of the upper process device moves back tin device input terminal with described one section and connect, and described one section is moved back tin device output end
It is connect with the water washing device input terminal, the water washing device output end moves back tin device input terminal with described two sections and connect；It is described
Two sections are moved back tin device output end and connect with the lower process device input terminal；The tin removal waste liquor recyclable device input terminal, output
End moves back tin device output end with described one section respectively and input terminal is connect, and forms closure connection；
Wherein, it moves back tin device and is additionally provided with a tin removal waste liquor recyclable device for described one section.
2. PCB as described in claim 1 moves back tin system, which is characterized in that the tin removal waste liquor recyclable device includes:
Tin removal waste liquor collection device is collected for moving back one section the waste liquid after moving back tin in tin process；Tin removal waste liquor pretreatment
Device, for being pre-processed to the tin removal waste liquor of collection；Equipment for separating liquid from solid, for carrying out pretreated tin removal waste liquor
Solid and liquid separating treatment；Reclamation set is adjusted, for one section will to be returned to after the liquid phase addition regulator adjustment after separation
Tin device is moved back to recycle；
The tin removal waste liquor collection device input terminal moves back tin device output end with described one section and connect, and the tin removal waste liquor collects dress
Output end is set to connect with the tin removal waste liquor pretreatment unit input terminal, the tin removal waste liquor pretreatment unit output end with it is described
The connection of equipment for separating liquid from solid input terminal；The equipment for separating liquid from solid output end is connect with the adjustment reclamation set input terminal, institute
It states adjustment reclamation set output end to move back tin device input terminal with described one section and connect, formation circulation loop.
3. PCB as claimed in claim 2 moves back tin system, which is characterized in that the tin removal waste liquor recyclable device further include: even
The refining cell being connected on the equipment for separating liquid from solid.
4. PCB as claimed in claim 2 moves back tin system, which is characterized in that the tin removal waste liquor pretreatment unit includes: pre-
Processing pond, and the cooling compressor that tin is precipitated is carried out to the waste liquid in pretreatment pool.
5. PCB as claimed in claim 4 moves back tin system, which is characterized in that the pretreatment pool and equipment for separating liquid from solid it
Between be additionally provided with one and be pneumatically isolated pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820856552.6U CN209024646U (en) | 2018-06-04 | 2018-06-04 | A kind of PCB moves back tin system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820856552.6U CN209024646U (en) | 2018-06-04 | 2018-06-04 | A kind of PCB moves back tin system |
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| Publication Number | Publication Date |
|---|---|
| CN209024646U true CN209024646U (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820856552.6U Active CN209024646U (en) | 2018-06-04 | 2018-06-04 | A kind of PCB moves back tin system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531910A (en) * | 2018-06-04 | 2018-09-14 | 深圳市恒宝源环保科技有限公司 | A kind of PCB moves back tin system and moves back tin method |
-
2018
- 2018-06-04 CN CN201820856552.6U patent/CN209024646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531910A (en) * | 2018-06-04 | 2018-09-14 | 深圳市恒宝源环保科技有限公司 | A kind of PCB moves back tin system and moves back tin method |
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Address after: 518000 workshop 101, maozhouhe Industrial Zone, Langxia community, Songgang street, Bao'an District, Shenzhen, Guangdong Province Patentee after: SHENZHEN HENGBAOYUAN ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY CO.,LTD. Address before: 518000 No. 36, Shuangxiu Road, Kengzi street, Pingshan District, Shenzhen, Guangdong Patentee before: SHENZHEN HENGBAOYUAN ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY CO.,LTD. |
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