CN210199509U - PCB developer solution regeneration recovery system - Google Patents
PCB developer solution regeneration recovery system Download PDFInfo
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- CN210199509U CN210199509U CN201921200771.XU CN201921200771U CN210199509U CN 210199509 U CN210199509 U CN 210199509U CN 201921200771 U CN201921200771 U CN 201921200771U CN 210199509 U CN210199509 U CN 210199509U
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Abstract
The utility model relates to a developer solution technical field, concretely relates to PCB developer solution regeneration recovery system includes collecting vat, feed pump, first filter, circulating pump, second filter, clear solution groove, regeneration cistern and ration in proper order according to the developer solution flow direction and throws the feed box, the filter fineness of first filter is 0.8-1.2 mu m, the filter fineness of second filter is 0.1-0.3 mu m, the clear solution groove is provided with sodium hydroxide and throws the mouth. In the utility model, the secondary filtration can reduce the COD value of the waste liquid, remarkably improve the recovery rate and the durability of the recovery system, the recovery rate of the developing solution can reach 70 percent, and the core processing components and parts do not need to be replaced within 5 years; and through a clear liquid tankSodium hydroxide addition, raw water and water production (Na)2CO3Concentration, COD, dissolved film amount, PH value and the like) are basically consistent, and the use requirements of the developing solution on the circuit board developing process can be basically met.
Description
Technical Field
The utility model relates to a developer solution technical field, concretely relates to PCB developer solution regeneration recovery system.
Background
In the production process of the PCB, a large amount of developing solution is consumed in the developing link, so that a large amount of high-COD developing waste liquid is generated. The traditional developing waste liquid treatment process comprises the steps of discharging the developing waste liquid to an ink waste water tank in a total amount of 12H, carrying out sewage treatment together with other waste liquid, wherein the daily discharge amount of the developing waste liquid is up to 170m3The generated sludge is treated by 3000 yuan/ton outside, and a large amount of cotton cores (dangerous solid wastes) replaced by each shift (12h) of the production line need to be treated additionally, so that the treatment cost is high.
For this reason, on-line recycling systems for relatively large amounts of developer have been developed. For example, application number 201620189168.6 discloses a circuit board developing device that developer liquid can circulate, by developing tank, back flush filter, drive wheel, go up the shower and shower down, the developing tank below sets up the developing tank, the developing tank passes through the baffle and separates for waste liquid groove and fresh developing tank, the developing tank separates through the baffle with the developing tank, and the waste liquid groove passes through the inlet that lift pump I connects back flush filter, and the fresh developing tank of regeneration developer liquid exit linkage of back flush filter, lift pump II is connected to fresh developing tank, and the drain pipe of lift pump II is connected respectively through two branches and is gone up the shower and shower down. The utility model discloses set up fresh developing solution groove and waste liquid groove, the developing solution of retrieving gets into the shower again after the fresh developing solution groove intensive mixing, guarantees to spray the stability of the developing solution that uses.
However, the existing on-line recycling system has the common problems that: 1. only one filter is generally arranged, so that the durability and the recovery rate are low; 2. neglecting the material loss of the developing waste liquid, not effectively supplementing after recycling, directly recycling and reducing the developing effect and influencing the product quality.
Disclosure of Invention
In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a PCB developer solution regeneration recovery system, its double-precision filter's setting can improve durability and rate of recovery, sets up the pH value of the developer solution that the mouth was thrown to the sodium hydroxide and carries out effectual correction to the retrieval and utilization.
The purpose of the utility model is realized through the following technical scheme:
a PCB developer regeneration recovery system sequentially comprises a collecting tank, a feeding pump, a first filter, a circulating pump, a second filter, a clear solution tank, a regeneration solution tank and a quantitative feeding box according to the flow direction of a developer, wherein the filtering precision of the first filter is 0.8-1.2 mu m, the filtering precision of the second filter is 0.1-0.3 mu m, and the clear solution tank is provided with a sodium hydroxide feeding port.
Wherein, the first filter is a wire-wound filter, and the filtering precision is 1 μm.
Wherein the second filter is a ceramic membrane filter, and the filtering precision is 0.2 mu m.
The PCB developing solution regeneration and recovery system further comprises a CIP cleaning device, a cleaning solution outlet of the CIP cleaning device is communicated with a cleaning solution inlet of the feed pump, and a cleaning solution outlet of the second filter is communicated with a cleaning solution recovery port of the CIP cleaning device.
And the cleaning solution outlet of the second filter is communicated with the cleaning solution inlet of the circulating pump.
The second filter is provided with a developing concentrated solution outlet which is respectively communicated with a liquid inlet of the circulating pump and a liquid inlet of the collecting tank.
Wherein, the collecting vat is provided with liquid level control device, liquid level control device is connected with the feed pump electricity.
The collecting groove is provided with a developing solution inlet which is communicated with a developing solution using device, the developing solution inlet is provided with a pneumatic valve, and the pneumatic valve is electrically connected with the liquid level control device.
The beneficial effects of the utility model reside in that: the utility model discloses in, the effect of collecting vat is the development waste liquid of collecting developer solution user equipment production, then developer solutionThe waste liquid is filtered by the first low-precision filter and the second high-precision filter in sequence under the action of the feeding pump and the circulating pump, the COD value of the waste liquid is reduced, the recovery rate and the durability of a recovery system can be obviously improved by the matched use of the filters, the recovery rate of the developing solution can reach 70%, and core processing components do not need to be replaced within 5 years; and through the addition of sodium hydroxide in the clear liquid tank, the quality of the development recovery liquid can be improved, the excessive reduction of the development effect is avoided, the clear liquid is detected, and practices prove that various indexes (Na) of raw water and produced water2CO3Concentration, COD, film dissolving amount, PH value and the like) are basically consistent, the use requirements of the developing solution on the circuit board developing process can be basically met, and only NaOH solution needs to be quantitatively added to adjust the required PH value (11 +/-1); the developing recovery liquid supplemented by the clear liquid tank enters a regeneration liquid tank for standby, and enters a quantitative adding box for controlling the usage amount when in use.
Drawings
Fig. 1 is a block diagram of the present invention;
the reference signs are: 1-a developing cylinder, 2-a collecting tank, 3-a feeding pump, 4-a first filter, 5-a circulating pump, 6-a second filter, 7-a clear liquid tank, 8-a regeneration liquid tank, 9-a quantitative feeding box and 10-a CIP cleaning device.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and the accompanying fig. 1, which are not intended to limit the present invention.
Example 1
As shown in fig. 1, the system for recycling the developer solution of the PCB sequentially comprises a collecting tank 2, a feeding pump 3, a first filter 4, a circulating pump 5, a second filter 6, a clear solution tank 7, a regeneration solution tank 8 and a quantitative feeding box 9 according to the flow direction of the developer solution, wherein the filtering precision of the first filter 4 is 0.8-1.2 μm, the filtering precision of the second filter 6 is 0.1-0.3 μm, and the clear solution tank 7 is provided with a sodium hydroxide feeding port.
Wherein, the first filter 4 is a wire-wound filter, and the filtering precision is 1 μm.
Wherein the second filter 6 is a ceramic membrane filter with a filtration precision of 0.2 μm.
In the utility model, the collecting tank 2 is used for collecting the developing waste liquid generated by the developing liquid using equipment (shown in fig. 1, the developing cylinder 1), then the developing liquid is filtered by the first filter 4 with low precision and the second filter 6 with high precision under the action of the feed pump 3 and the circulating pump 5, the COD value of the waste liquid is reduced, the recovery rate and the durability of the recovery system can be obviously improved by the matching use of the filters, the recovery rate of the developing liquid can reach 70%, and the core processing components and parts do not need to be replaced within 5 years; the quality of the development recovery liquid can be improved by adding the sodium hydroxide in the clear liquid tank 7, the excessive reduction of the development effect is avoided, and the clear liquid is detected, so that the indexes of raw water and produced water (such as Na2CO3 concentration, COD (chemical oxygen demand), film dissolving amount, pH value and the like) are basically consistent, the use requirements of the developing solution on the circuit board development process can be basically met, and only the required pH value (11 +/-1) is adjusted by quantitatively adding the NaOH solution; the developing recovery liquid supplemented by the clear liquid tank 7 enters the regeneration liquid tank 8 for standby, and enters the quantitative adding box 9 for use with controlled dosage during use.
The wire-wound filter can effectively remove suspended matters and particles formed by photoresist and the like in liquid, and can bear higher filtering pressure and improve the filtering efficiency; the ceramic membrane filter has the advantages of high strength, chemical corrosion resistance, good cleaning and regenerating performance and double advantages of efficient filtration and precise filtration. In other alternative embodiments, the first filter 4 may have a filtration precision of 0.8 μm, 0.9 μm, 1.1 μm, 1.2 μm, etc., and the second filter 6 may have a filtration precision of 0.1 μm, 0.3 μm, etc.
The PCB developer solution regeneration and recovery system further comprises a CIP cleaning device 10, a cleaning solution outlet of the CIP cleaning device 10 is communicated with a cleaning solution inlet of the feed pump 3, and a cleaning solution outlet of the second filter 6 is communicated with a cleaning solution recovery port of the CIP cleaning device 10. A
The utility model discloses a setting can carry out effectual on-line cleaning to the pipeline of feed pump 3, first filter 4, circulating pump 5, second filter 6 and intercommunication between them, reduces the maintenance cost in later stage, has improved regeneration recovery system's durability.
Wherein the cleaning solution outlet of the second filter 6 is communicated with the cleaning solution inlet of the circulating pump 5. The circulation of the cleaning liquid can improve the utilization rate of the cleaning liquid.
The second filter 6 is provided with a developing concentrated solution outlet which is respectively communicated with a liquid inlet of the circulating pump 5 and a liquid inlet of the collecting tank 2. The developing concentrated solution that fails to pass through the second filter 6 may be subjected to secondary filtration by the circulation pump 5 or in the collection tank 2.
Wherein, the collecting vat 2 is provided with a liquid level control device, the liquid level control device is connected with the feed pump 3 electricity. When the liquid level of the collecting tank 2 is too low, the feeding pump 3 can be closed, the continuous operation time of the system is reduced, and the working effect is improved; when the collection tank 2 has reached the appropriate level, the feed pump 3 can be switched on by means of a level control.
Wherein, collecting vat 2 is provided with the developer solution entry that is used for with developer solution user equipment intercommunication, the developer solution entry is provided with pneumatic valve, pneumatic valve with the liquid level control device electricity is connected. Similarly, the liquid level of the collecting tank 2 can be effectively controlled by controlling the pneumatic valve through the liquid level control device, and the working efficiency of the system is improved.
The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.
Claims (8)
1. The utility model provides a PCB developer solution regeneration recovery system which characterized in that: the device sequentially comprises a collecting tank, a feeding pump, a first filter, a circulating pump, a second filter, a clear liquid tank, a regeneration liquid tank and a quantitative feeding box according to the flow direction of a developing solution, wherein the filtering precision of the first filter is 0.8-1.2 mu m, the filtering precision of the second filter is 0.1-0.3 mu m, and the clear liquid tank is provided with a sodium hydroxide feeding port.
2. The PCB developer solution recycling system of claim 1, wherein: the first filter is a wire-wound filter, and the filtering precision is 1 mu m.
3. The PCB developer solution recycling system of claim 1, wherein: the second filter is a ceramic membrane filter, and the filtering precision is 0.2 mu m.
4. The PCB developer solution recycling system of claim 1, wherein: the PCB developing solution regeneration and recovery system further comprises a CIP cleaning device, a cleaning solution outlet of the CIP cleaning device is communicated with a cleaning solution inlet of the feed pump, and a cleaning solution outlet of the second filter is communicated with a cleaning solution recovery port of the CIP cleaning device.
5. The PCB developer solution recycling system of claim 4, wherein: and the cleaning solution outlet of the second filter is communicated with the cleaning solution inlet of the circulating pump.
6. The PCB developer solution recycling system of claim 1, wherein: the second filter is provided with a developing concentrated solution outlet which is respectively communicated with a liquid inlet of the circulating pump and a liquid inlet of the collecting tank.
7. The PCB developer solution recycling system of claim 1, wherein: the collecting tank is provided with a liquid level control device, and the liquid level control device is electrically connected with the feeding pump.
8. The PCB developer solution recycling system of claim 7, wherein: the collecting groove is provided with a developing solution inlet which is communicated with a developing solution using device, the developing solution inlet is provided with a pneumatic valve, and the pneumatic valve is electrically connected with the liquid level control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921200771.XU CN210199509U (en) | 2019-07-26 | 2019-07-26 | PCB developer solution regeneration recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921200771.XU CN210199509U (en) | 2019-07-26 | 2019-07-26 | PCB developer solution regeneration recovery system |
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| CN210199509U true CN210199509U (en) | 2020-03-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871216A (en) * | 2020-06-15 | 2020-11-03 | 江西中驰绿能科技有限公司 | Method for cleaning filtering membrane |
| CN113009792A (en) * | 2021-03-05 | 2021-06-22 | 苏州晶洲装备科技有限公司 | Developing solution recovery device |
-
2019
- 2019-07-26 CN CN201921200771.XU patent/CN210199509U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871216A (en) * | 2020-06-15 | 2020-11-03 | 江西中驰绿能科技有限公司 | Method for cleaning filtering membrane |
| CN113009792A (en) * | 2021-03-05 | 2021-06-22 | 苏州晶洲装备科技有限公司 | Developing solution recovery device |
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