CN109761387A - Electroplating liquid purifying device and electroplate liquid purification method - Google Patents
Electroplating liquid purifying device and electroplate liquid purification method Download PDFInfo
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- CN109761387A CN109761387A CN201910224733.6A CN201910224733A CN109761387A CN 109761387 A CN109761387 A CN 109761387A CN 201910224733 A CN201910224733 A CN 201910224733A CN 109761387 A CN109761387 A CN 109761387A
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Abstract
The present invention relates to electroplating liquid purifying device and electroplate liquid purification method, electroplating liquid purifying device includes: accommodation groove, circulating pump and circulating line；Accommodation groove has liquid outlet and inlet, and the liquid outlet of accommodation groove is connected to one end of circulating line, and the inlet of accommodation groove is connected to the other end of circulating line, and circulating pump is set to circulating line, and an at least ultrafiltration membrance filter layer is provided in circulating line.The electroplate liquid in accommodation groove is pumped into circulating line by circulating pump, it is filtered so that electroplate liquid flows through ultrafiltration membrance filter layer, due to ultrafiltration membrance filter layer can isolation diameter be greater than ultrafiltration membrance filter layer filter opening aperture electroplating additive and catabolite, so that electroplate liquid is sufficiently filtered, on the one hand without the operation that stops production, effectively increase filter efficiency, on the other hand, without carrying out carbon processing, power consumption is effectively reduced, and is good for the environment, furthermore, the filtering for realizing automation, effectively reduces cost of labor.
Description
Technical field
The present invention relates to bath solution purification techniques fields, more particularly to electroplating liquid purifying device and electroplate liquid purification side
Method.
Background technique
Current existing bath solution filtration system is filtered in the following ways: the electroplating bath for first filtering needs
Liquid is pumped into carbon treatment trough by circulating pump, and hydrogen peroxide is added in carbon treatment trough, and hydrogen peroxide is warming up to 60-65 DEG C and is handled
For a period of time；Active carbon powder is then added and stirs certain time, carries out carbon processing, then stands a period of time；Finally will
Tank liquor is drawn back copper plating groove in addition spare standing slot, then after standing a period of time by carbon treated solution pump.
Traditional this filter type there is a problem of following:
1, liquid medicine is evacuated to dedicated carbon treatment trough after need to stopping production to operate, a fluid cylinder could be completed within general 2-3 days, to production
Production capacity be affected；
2, the influence of activated carbon powder foot couple environment is very big, is unfavorable for environmental protection；
3, carbon processing will lead to the tank liquor waste of 10-15%, cause cost allowance, while having aggravated the difficulty of wastewater treatment
Degree；Tank liquor 60-65 DEG C be must be heated in carbon treatment process, a large amount of electric power, each general power consumption of 6000 liters of slot needed to consume
300 degree or so；
4, the labor intensity of carbon processing is big, expends more human resources, cost of labor is higher.
Summary of the invention
Based on this, it is necessary to provide a kind of electroplating liquid purifying device and electroplate liquid purification method.
A kind of electroplating liquid purifying device, comprising: accommodation groove, circulating pump and circulating line；
The accommodation groove has liquid outlet and inlet, the liquid outlet of the accommodation groove and the one of the circulating line
End connection, the inlet of the accommodation groove are connected to the other end of the circulating line, and the circulating pump is set to described
Circulating line is provided with an at least ultrafiltration membrance filter layer in the circulating line.
Further, there are three ultrafiltration membrance filter layers for setting in the circulating line.
Further, the circulating line includes first pipe, second pipe and third pipeline, the accommodation groove it is described
Liquid outlet is connected to one end of the first pipe, and the other end of the first pipe is connected to one end of the second pipe,
The other end of the second pipe is connected to one end of the third pipeline, the other end and the accommodation groove of the third pipeline
The inlet connection, at least one of the first pipe, the second pipe and described third pipeline are provided with super
Membrane filtration layer.
Further, it is provided with the first ultrafiltration membrance filter layer in the first pipe, there is the in the second pipe setting
Two ultrafiltration membrance filter layers have third ultrafiltration membrance filter layer in third pipeline setting.
Further, the circulating pump is set to the third pipeline.
Further, the second pipe include first son pipe and second son pipe, one end of the first sub- pipe with it is described
First pipe connection, one end of the other end and the described second sub- pipe of the first sub- pipe are detachably connected, the second son pipe
The other end be connected to the third pipeline.
Further, the second ultrafiltration membrance filter layer is arranged in the junction of the first son pipe and the described second sub- pipe.
Further, ultrafiltration membrance filter layer has multiple filter openings, and the aperture of the filter opening is 3nm to 7nm.
A kind of electroplate liquid purification method is purified using any of the above-described electroplating liquid purifying device as described in the examples, special
Sign is, comprising:
The electroplate liquid in accommodation groove is pumped into circulating line by circulating pump, so that electroplate liquid flows through ultrafiltration membrance filter
Layer；
It will be fed through in accommodation groove by the electroplate liquid of ultrafiltration membrance filter layer filtering by the circulating pump, complete electroplate liquid
Filtering.
Further, ultrafiltration membrance filter layer has multiple filter openings, and the aperture of the filter opening is 3nm to 7nm.
The beneficial effects of the present invention are: the electroplate liquid in accommodation groove is pumped into circulating line by circulating pump, so that
Electroplate liquid flows through ultrafiltration membrance filter layer and is filtered, due to ultrafiltration membrance filter layer can isolation diameter be greater than ultrafiltration membrance filter layer
The electroplating additive and catabolite in the aperture of filter opening, and diameter is less than in the electroplate liquid in the aperture of the filter opening of ultrafiltration membrance filter layer
Effective ingredient, so that electroplate liquid is sufficiently filtered, on the one hand can then be operated without stopping production by ultrafiltration membrance filter layer,
Filter efficiency is effectively increased, on the other hand, without carrying out carbon processing, effectively reduces power consumption, and be good for the environment,
In addition, realizing the filtering of automation, cost of labor is effectively reduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the attachment structure schematic diagram of the electroplating liquid purifying device of an embodiment；
Fig. 2 is the step schematic diagram of the electroplate liquid purification method of an embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, it is the electroplating liquid purifying device 10 of one embodiment of the invention, comprising: accommodation groove 100, circulating pump
200 and circulating line 300；The accommodation groove 100 have liquid outlet 101 and inlet 102, the accommodation groove 100 it is described go out
Liquid mouth is connected to one end of the circulating line 300, the inlet of the accommodation groove 100 and the circulating line 300
Other end connection, the circulating pump 200 are set to the circulating line 300, are provided in the circulating line 300 and at least one surpass
Membrane filtration layer.
Specifically, for the accommodation groove 100 for accommodating electroplate liquid, which is alternatively referred to as processing solution tank, as shown in Figure 1,
Arrow direction is the circulating direction of electroplate liquid in figure, and the electroplate liquid in accommodation groove 100 is pumped into circulating line 300 by circulating pump 200
In, stream is filtered by ultrafiltration membrance filter layer, and is again flowed into accommodation groove 100 along circulating line 300, to realize
Filter, and electroplate liquid can be recycled after filtration.Circulating pump 200 is used to provide power for the circulation of electroplate liquid, should
The inside of circulating pump 200 is connected to circulating line 300.
It is noted that the ultrafiltration membrance filter layer is ultrafiltration membrance filter core, which can be used existing
Ultrafiltration membrane technique realize.One embodiment is that the material of the ultrafiltration membrance filter layer is polyacrylonitrile, and one embodiment is to be somebody's turn to do
The material of ultrafiltration membrance filter layer is polyvinyl chloride.
In the present embodiment, which is set in circulating line 300, and ultrafiltration membrance filter layer covers circulation pipe
Radial space in road 300, that is to say, that the outer surface of ultrafiltration membrance filter layer is connect with the inner surface of circulating line 300, this
Sample, so that the electroplate liquid to circulate in circulating line 300 is circulated to the other side from the side of ultrafiltration membrance filter layer.Due to ultrafiltration membrane
The filter opening of filter layer can only allow the lesser substance of diameter to pass through, in this way, diameter is greater than the aperture of the filter opening of ultrafiltration membrance filter layer
Electroplating additive and catabolite then by ultrafiltration membrance filter layer, can not by ultrafiltration membrance filter layer, and in electroplate liquid effectively at
Part such as water, Cu2+、Cu+、SO4 2-、H+、Cl-, diameter is typically small, and is less than the aperture of the filter opening of ultrafiltration membrance filter layer, in this way,
Diameter then can be by ultrafiltration membrance filter layer less than effective ingredient in the electroplate liquid in the aperture of the filter opening of ultrafiltration membrance filter layer, this
Sample, by the driving of circulating pump 200, electroplate liquid is entered in circulating line 300 by the liquid outlet of accommodation groove 100, in circulating line
Filtering in 300, and by accommodation groove 100 there is inlet to enter in accommodation groove 100, realize the circulating filtration of electroplate liquid.Due to
It is not necessary that electroplate liquid to be pumped into carbon treatment trough, and then without the operation that stops production, online real time filtering is realized, was effectively increased
It filters efficiency and on the other hand without carrying out carbon processing, power consumption is effectively reduced, and be good for the environment, in addition, realizing
The filtering of automation, effectively reduces cost of labor.
In above-described embodiment, electroplating liquid purifying device 10 realizes the on-line filtration processing of bath solution, improves work effect
Rate；And the pollution of activated carbon powder foot couple environment is avoided, clean-up effect is promoted；In addition, reduce electricity consumption, with water and wastewater treatment at
This, increases economic efficiency；Occupied area is reduced, human resources output is saved, reduces labor intensity.
In order to enable the electroplating additive and catabolite that are relatively large in diameter are isolated, and make effective ingredient in electroplate liquid
Can be by ultrafiltration membrance filter layer, in one embodiment, ultrafiltration membrance filter layer has multiple filter openings, and the aperture of the filter opening is
3nm to 7nm.
It is noted that the lewis' acid diameter of effective ingredient is in 1nm hereinafter, and being electroplated degradation and producing in electroplate liquid
The diameter of the organic pollutants such as object is in 10nm or more, in this way, the aperture of filter opening is that 3nm to 7nm can effectively obstruct plating degradation
The organic pollutants such as product, and enable to the lewis' acid such as Cu of effective ingredient in electroplate liquid2+、Cu+、SO4 2-、H+、
Cl-Pass through.
In order to further such that the filter effect of ultrafiltration membrance filter layer more preferably, in one embodiment, ultrafiltration membrance filter layer
With multiple filter openings, the aperture of the filter opening is 5nm.In the present embodiment, the average pore size of each filter opening is 5nm.In this way, energy
The organic contaminations composition granules such as enough further isolation plating catabolites, and enable the lewis' acid of effective ingredient in electroplate liquid
Enough pass through, so that filter effect is more preferably.
In order to enable the purification efficiency of electroplate liquid is more preferably, in one embodiment, three are provided in the circulating line 300
A ultrafiltration membrance filter layer.In one embodiment, three ultrafiltration membrance filter layers are placed equidistant in circulating line 300.That is, the circulation
Ultrafiltration membrance filter core there are three settings in pipeline 300 can be obstructed more effectively straight by the way that three ultrafiltration membrance filter layers are arranged
The biggish electroplating additive of diameter and catabolite, so that the purification efficiency of electroplate liquid is more preferably.
In order to which circulating line 300 is rationally arranged, in one embodiment, as shown in Figure 1, the circulating line 300 includes
First pipe 310, second pipe 320 and third pipeline 330, the liquid outlet 101 of the accommodation groove 100 and first pipe
The one end in road 310 is connected to, and the other end of the first pipe 310 is connected to one end of the second pipe 320, second pipe
The other end in road 320 is connected to one end of the third pipeline 330, the other end and the accommodation groove of the third pipeline 330
100 inlet 102 is connected to, in the first pipe 310, the second pipe 320 and the third pipeline 330 extremely
Few one is provided with ultrafiltration membrance filter layer.For example, the first pipe 310, the second pipe 320 and the third pipeline
Ultrafiltration membrance filter layer is respectively arranged in 330.For example, the second pipe 320 is provided with ultrafiltration membrance filter layer.In a reality
It applies in example, the circulating pump 200 is set to the third pipeline 330.
In the present embodiment, first pipe 310 and second pipe 320 are detachably connected, second pipe 320 and third pipeline
330 are detachably connected, it is worth mentioning at this point that, first pipe 310 and second pipe 320 be detachably connected and second pipe
320, which can be used the mode that pipeline in the prior art connects with the connection type that third pipeline 330 is detachably connected, realizes, for example,
It is connected by ring flange, not burdensome description in the present embodiment.
In the present embodiment, by setting interconnected first pipe 310,320 and of second pipe for circulating line 300
Third pipeline 330 enables circulating line 300 to be disassembled, and is conducive to maintenance and cleaning to circulating line 300, and energy
It is enough that ultrafiltration membrance filter layer in circulating line 300 is replaced.
In order to enable filter effect is more preferably, in one embodiment, as shown in Figure 1, being provided in the first pipe 310
First ultrafiltration membrance filter layer 351, the second pipe 320 be arranged in have the second ultrafiltration membrance filter layer 352, the third pipeline
There is third ultrafiltration membrance filter layer 353 in 330 settings.One embodiment is that the first ultrafiltration membrance filter layer 351 is set to first pipe
310 and second pipe 320 junction, third ultrafiltration membrance filter layer 353 is set to third pipeline 330 and second pipe 320
Junction.
In the present embodiment, setting in the first pipe 310, the second pipe 320 and the third pipeline 330 respectively
It is equipped with ultrafiltration membrance filter layer, in such manner, it is possible to make electroplate liquid equal in first pipe 310, second pipe 320 and third pipeline 330
It can be filtered.
In order to enable filter effect is more preferably, and filter efficiency is improved, in one embodiment, the first ultrafiltration membrance filter layer
Filter opening aperture be greater than the second ultrafiltration membrance filter layer filter opening aperture, the aperture of the filter opening of the second ultrafiltration membrance filter layer is greater than
The aperture of the filter opening of third ultrafiltration membrance filter layer.In the present embodiment, electroplate liquid is under the action of circulating pump 200 along first pipe
310, the sequence of second pipe 320 and third pipeline 330 circulates, that is to say, that the circulating direction of electroplate liquid is by accommodation groove 100
Liquid outlet be circulated to first pipe 310, and successively flowed by first pipe 310 through second pipe 320 and third pipeline 330,
And it is again flowed into accommodation groove 100 by the inlet of accommodation groove 100.
In the present embodiment, the aperture of the first ultrafiltration membrance filter layer, the second ultrafiltration membrance filter layer and third ultrafiltration membrance filter layer
It is sequentially reduced, since electroplate liquid is the sequence circulation along first pipe 310, second pipe 320 and third pipeline 330, in this way,
The electroplating additive and catabolite being relatively large in diameter are isolated by the first ultrafiltration membrance filter layer first, and subsequent, and diameter is lesser
Electroplating additive and catabolite are then isolated by the second ultrafiltration membrance filter layer, finally, the smallest electroplating additive of diameter and degradation
Product is then isolated by third ultrafiltration membrance filter layer, so that effectively the electroplating additive of different-diameter and catabolite were isolated
Filter, avoids the filtering load of single ultrafiltration membrance filter layer larger and is unable to fully filter, by three-stage filtration, by electroplating additive
And catabolite filtering, so that filter effect is more preferably.
In order to enable filter effect is more preferably, in one embodiment, the aperture of the filter opening of the first ultrafiltration membrance filter layer is
4.5nm to 8nm, the aperture of the filter opening of the second ultrafiltration membrance filter layer are 3.5nm to 5nm, the filter opening of third ultrafiltration membrance filter layer
Aperture is 2.5nm to 4nm.
In the present embodiment, the average pore size of the filter opening of the first ultrafiltration membrance filter layer is greater than the filter opening of the second ultrafiltration membrance filter layer
Average pore size, the average pore size of the filter opening of the second ultrafiltration membrance filter layer is greater than the average hole of the filter opening of third ultrafiltration membrance filter layer
Diameter, and the minimum-value aperture of the filter opening of the first ultrafiltration membrance filter layer is less than the maximum diameter of hole of the filter opening of the second ultrafiltration membrance filter layer,
The minimum-value aperture of the filter opening of two ultrafiltration membrance filter layers is less than the maximum diameter of hole of the filter opening of third ultrafiltration membrance filter layer, in this way, this reality
It applies in example, using three kinds of different ultrafiltration membrance filter layers of specification, interval range locating for the aperture of each ultrafiltration membrance filter layer is not
It is independent from each other, but it is cross one another, be conducive to that the organic pollutants such as catabolite are electroplated to various different-diameters in this way
Be adequately isolated so that the organic pollutants such as parcel plating catabolite in time not a certain ultrafiltration membrance filter layer obtain every
From can also be filtered in next ultrafiltration membrance filter layer, so that whole filter effect is more preferably.
In order to realize the replacement of ultrafiltration membrance filter layer, in one embodiment, referring again to Fig. 1, the second pipe
320 include the first sub- pipe 321 and the second sub- pipe 322, and one end of the first sub- pipe 321 is connected to the first pipe 310, institute
The one end for stating the other end and the described second sub- pipe 322 of the first sub- pipe 321 is detachably connected, the second sub- pipe 322 it is another
End is connected to the third pipeline 330.In one embodiment, the connection of the described first sub- pipe 321 and the described second sub- pipe 322
The second ultrafiltration membrance filter layer is arranged in place.The position setting that the i.e. described first sub- pipe 321 is connect with the described second sub- pipe 322
Second ultrafiltration membrance filter layer, since the described first sub- pipe 321 is connected to the described second sub- pipe 322, in this way, in the first sub- pipe 321
Electroplate liquid will be passed to by the second ultrafiltration membrance filter laminar flow in the second sub- pipe 322, in the present embodiment, due to first son pipe
321 and second sub- pipe 322 be detachably connected, in this way, after being disassembled separation between the first sub- pipe 321 and the second sub- pipe 322, position
The second ultrafiltration membrance filter layer in the junction of the first sub- pipe 321 and the second sub- pipe 322, which can be disassembled, to be replaced, and then is made
Obtain the integral filter better effect of electroplating liquid purifying device 10.
In order to realize being detachably connected for the first sub- pipe 321 and the second sub- pipe 322, in one embodiment, such as Fig. 1 institute
Show, the second pipe 320 further includes being connected to sub- pipe 323, and the first sub- pipe 321 is arranged first close to one end of the second sub- pipe 322
Second flange is arranged close to one end of the first sub- pipe 321 in flange, the second sub- pipe 322, and the both ends of the sub- pipe of connection are respectively set
Connecting flange, the first sub- pipe 321 pass through the connection method downlink connection of first flange and described one end for being connected to sub- pipe 323, institute
State the connection method downlink connection that the second sub- pipe 322 passes through second flange and the other end for being connected to sub- pipe 323, the first son pipe
321, the connection pipe and the second sub- pipe 322 are sequentially communicated, and the second ultrafiltration membrance filter layer 352 is set to the company
Lead in sub- pipe 323, in this way, by the way that the second ultrafiltration membrance filter layer 352 to be set in the sub- pipe 323 of connection, and due to connection
Sub- pipe can be detachably connected respectively with the first sub- pipe 321 and the second sub- pipe 322, so that being connected to sub- pipe can be easily
It disassembles, so that the second ultrafiltration membrance filter layer can be replaced easily.
In one embodiment, the first pipe includes third pipe and the 4th son pipe, one end of the sub- pipe of third
It being connected to the liquid outlet of the accommodation groove, one end of the other end and the 4th sub- pipe of the sub- pipe of third is detachably connected,
The other end of the 4th sub- pipe is connected to the second pipe, and the junction of the third pipe and the 4th sub- pipe is arranged
The first ultrafiltration membrance filter layer.In one embodiment, the third pipeline includes the 5th son pipe and the 6th son pipe, and described the
One end of five sub- pipes is connected to the second pipe, and one end of the other end and the 6th sub- pipe of the 5th sub- pipe is detachable
Connection, the other end of the 6th sub- pipe are connected to the inlet of accommodation groove, the company of the 5th the son pipe and the 6th sub- pipe
It meets place and the third ultrafiltration membrance filter layer is set.Wherein, circulating pump has arrival end and outlet end, the 5th son pipe and circulation
The arrival end of pump connects, and the outlet end of circulating pump is connect with the 6th sub- pipe, the 5th son pipe, circulating pump and the 6th son pipe
It is sequentially communicated.
In above-described embodiment, by the way that first pipe, third pipeline are respectively set to dismountable structure, so that the first surpassing
Membrane filtration layer and third ultrafiltration membrance filter layer can be replaced, so that electroplating liquid purifying device is in long-term use process
In, integral filter better effect.
In order to enable filter effect is more preferably, and in one embodiment, setting carbon filter layer in the circulating line 300, one
In a embodiment, there are two carbon filter layers for the setting of circulating line 300.In the present embodiment, setting in the circulating line 300
At least one ultrafiltration membrance filter layer, two carbon filter layers are respectively arranged at the two sides of one of ultrafiltration membrance filter layer, and two
Carbon filter layer is placed equidistant with the ultrafiltration membrance filter layer, in this way, by carbon filter layer can preferably adsorb electroplating additive and
Catabolite realizes better filter effect.
In order to enable the filter effect of carbon filter layer is more preferably, and in one embodiment, setting heating dress in circulating line 300
It sets, in one embodiment, which includes heater strip and the ceramic layer that is coated on the outside of heater strip, and heater strip is after powered up
Heating, in this way, by being heated to electroplate liquid, so that the electroplating additive and catabolite in electroplate liquid are preferably by carbon mistake
Filtering layer absorption, so that filter effect is more preferably.
In one embodiment, a kind of electroplate liquid purification method is provided, using any of the above-described plating as described in the examples
Liquid purification device purifies electroplate liquid, comprising the following steps:
Step 401, by circulating pump by accommodation groove electroplate liquid be pumped into circulating line in so that electroplate liquid flow through it is super
Membrane filtration layer.
Step 403, it will be fed through in accommodation groove by the electroplate liquid of ultrafiltration membrance filter layer filtering by the circulating pump, it is complete
At the filtering of electroplate liquid.
Specifically, the electroplate liquid in accommodation groove flows into circulating line under the action of circulating pump, and electroplate liquid is by following
Ultrafiltration membrance filter layer in endless tube road, realize filtering, due to ultrafiltration membrance filter layer can isolation diameter be greater than ultrafiltration membrance filter layer
Filter opening aperture electroplating additive and catabolite, and diameter be less than ultrafiltration membrance filter layer filter opening aperture electroplate liquid
Middle effective ingredient then can be by ultrafiltration membrance filter layer, so that electroplate liquid is sufficiently filtered, on the one hand without the behaviour that stops production
Make, effectively increase filter efficiency, on the other hand, without carrying out carbon processing, effectively reduces power consumption, and be conducive to ring
It protects, in addition, realizing the filtering of automation, effectively reduces cost of labor.
In order to enable electroplate liquid can be filtered sufficiently, in one embodiment, the electroplate liquid flows through the ultrafiltration
The flow of film filter layer is 25-50LT/min.
Specifically, the electroplate liquid flow through the flow of the ultrafiltration membrance filter layer be in the unit time electroplate liquid flow through it is described
The Fluid Volume of ultrafiltration membrance filter layer perhaps volume or can be understood as electroplate liquid flow be electroplate liquid flowed in circulating line
Cross the circulating rate of ultrafiltration membrance filter layer.It is noted that if the flow that electroplate liquid flows through ultrafiltration membrance filter layer is excessive,
So that the pollutants such as catabolite in electroplate liquid are unable to get effective filtering, cause filter effect poor, and electroplate liquid flows through
If the flow of ultrafiltration membrance filter layer is too small, cause whole flow velocity slower, and makes filter efficiency low.In the present embodiment,
In step 301, the flow that the electroplate liquid flows through the ultrafiltration membrance filter layer is 25-50LT/min, can be effectively improved
Efficiency is filtered, and the pollutants such as catabolite in electroplate liquid is enabled to effectively to be filtered, so that filter effect is preferable.?
In one embodiment, the flow that the electroplate liquid flows through the ultrafiltration membrance filter layer is 30-42LT/min, in such manner, it is possible into one
Step effectively improves filter efficiency, and can further such that the pollutants such as catabolite in electroplate liquid are effectively filtered,
So that filter effect is preferable.
In order to enable filter effect is preferable, and filter efficiency is higher, and in one embodiment, the circulating filtration time is 2 small
When -4 hours.In the present embodiment, the circulating filtration time continues -4 hours 2 hours, in other words, circulating pump continue working 2 hours -
4 hours, so that the circulating filtration time continues -4 hours 2 hours.Specifically, electroplate liquid is drawn by circulating pump out of accommodation groove
Enter circulating line, and be fed again into accommodation groove, realizes the circulating filtration of electroplate liquid, and this process will continue 2 hours -4
Hour, it is filtered for multiple times in such manner, it is possible to which electroplate liquid is enabled to recycle, so that electroplate liquid can be filtered sufficiently.
In one embodiment, there are three ultrafiltration membrance filter layers for setting in the circulating line.
In one embodiment, the circulating line includes first pipe, second pipe and third pipeline, the accommodation groove
The liquid outlet be connected to one end of the first pipe, one end of the other end of the first pipe and the second pipe
Connection, the other end of the second pipe is connected to one end of the third pipeline, the other end of the third pipeline with it is described
The inlet of accommodation groove is connected to, and at least one of the first pipe, the second pipe and described third pipeline are set
It is equipped with ultrafiltration membrance filter layer.
In one embodiment, the first ultrafiltration membrance filter layer, the second pipe setting are provided in the first pipe
Inside there is the second ultrafiltration membrance filter layer, has third ultrafiltration membrance filter layer in the third pipeline setting.
In one embodiment, the circulating pump is set to the third pipeline.
In one embodiment, the second pipe includes the first son pipe and the second son pipe, one end of the first sub- pipe
It being connected to the first pipe, one end of the other end and the described second sub- pipe of the first sub- pipe is detachably connected, and described
The other end of two sub- pipes is connected to the third pipeline.
In one embodiment, the second ultrafiltration membrane mistake is arranged in the junction of the first son pipe and the described second sub- pipe
Filtering layer.
In order to enable the clean-up effect of electroplate liquid is more preferably, in one embodiment, electroplate liquid purification method is further comprised the steps of:
At interval of the ultrafiltration membrance filter layer in preset time replacement circulating line.
Specifically, since the ultrafiltration membrance filter layer in circulating line can be disassembled replacement, it is right in the present embodiment
Ultrafiltration membrance filter layer is regularly replaced, in such manner, it is possible to further such that the clean-up effect of electroplate liquid more preferably.It is worth mentioning
It is that the ultrafiltration membrance filter layer in circulating line has detachably described in the above-described embodiments, not burdensome description in the present embodiment.
In one embodiment, the preset time is a week, i.e., at interval of super in 7 days replacement one cycle pipelines
Membrane filtration layer.In the present embodiment, the time of periodic replacement ultrafiltration membrance filter layer is a week, in this way, both can effectively make
The clean-up effect of electroplate liquid more preferably, on the other hand can also reduce the replacement frequency of ultrafiltration membrance filter layer, reduce cost.
In one embodiment, ultrafiltration membrance filter layer has multiple filter openings, and the aperture of the filter opening is 3nm to 7nm.This reality
It applies in example, the aperture of filter opening is that 3nm to 7nm can effectively obstruct the organic pollutants such as plating catabolite, specifically, such as table 1
Shown, the lewis' acid diameter of effective ingredient is in 1nm hereinafter, and be electroplated the organic pollutants such as catabolite in electroplate liquid
Diameter is in 10nm or more, in this way, the aperture of filter opening is that 3nm to 7nm can effectively obstruct the organic pollutants such as plating catabolite,
And enable to the lewis' acid such as Cu of effective ingredient in electroplate liquid2+、Cu+、SO4 2-、H+、Cl-Pass through.
The molecular diameter of ingredient in 1 electroplate liquid of table
| Lewis' acid | Cu2+ | Cu+ | SO4 2- | H+ | Cl- | Water | Catabolite |
| Molecular diameter (nm) | 0.146 | 0.154 | 0.59 | 0.24 | 0.362 | 0.4 | 10-100 |
In order to further such that the filter effect of ultrafiltration membrance filter layer more preferably, in one embodiment, ultrafiltration membrance filter layer
With multiple filter openings, the aperture of the filter opening is 5nm.In the present embodiment, the average pore size of each filter opening is 5nm.In this way, energy
The organic contaminations composition granules such as enough further isolation plating catabolites, and enable the lewis' acid of effective ingredient in electroplate liquid
Enough pass through, so that filter effect is more preferably.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of electroplating liquid purifying device characterized by comprising accommodation groove, circulating pump and circulating line；
The accommodation groove has liquid outlet and inlet, and the liquid outlet of the accommodation groove and one end of the circulating line connect
Logical, the inlet of the accommodation groove is connected to the other end of the circulating line, and the circulating pump is set to the circulation
Pipeline is provided with an at least ultrafiltration membrance filter layer in the circulating line.
2. electroplating liquid purifying device according to claim 1, which is characterized in that there are three super for setting in the circulating line
Membrane filtration layer.
3. electroplating liquid purifying device according to claim 1, which is characterized in that the circulating line include first pipe,
The liquid outlet of second pipe and third pipeline, the accommodation groove is connected to one end of the first pipe, first pipe
The other end in road is connected to one end of the second pipe, and one end of the other end of the second pipe and the third pipeline connects
Logical, the other end of the third pipeline is connected to the inlet of the accommodation groove, the first pipe, the second pipe
At least one of the third pipeline is provided with ultrafiltration membrance filter layer.
4. electroplating liquid purifying device according to claim 3, which is characterized in that be provided in the first pipe and the first surpass
Membrane filtration layer has the second ultrafiltration membrance filter layer in second pipe setting, has third ultrafiltration in the third pipeline setting
Film filter layer.
5. electroplating liquid purifying device according to claim 3, which is characterized in that the circulating pump is set to the third pipe
Road.
6. electroplating liquid purifying device according to claim 3, which is characterized in that the second pipe include first son pipe and
Second son pipe, one end of the first sub- pipe are connected to the first pipe, the other end and described second of the first sub- pipe
One end of sub- pipe is detachably connected, and the other end of the second sub- pipe is connected to the third pipeline.
7. electroplating liquid purifying device according to claim 6, which is characterized in that the first son pipe is managed with second son
Junction the second ultrafiltration membrance filter layer is set.
8. according to claim 1 to electroplating liquid purifying device described in 7 any one, which is characterized in that ultrafiltration membrance filter layer tool
There are multiple filter openings, the aperture of the filter opening is 3nm to 7nm.
9. a kind of electroplate liquid purification method is purified using electroplating liquid purifying device described in claim any one of 1-8, special
Sign is, comprising:
The electroplate liquid in accommodation groove is pumped into circulating line by circulating pump, so that electroplate liquid flows through ultrafiltration membrance filter layer；
It will be fed through in accommodation groove by the electroplate liquid of ultrafiltration membrance filter layer filtering by the circulating pump, complete the mistake of electroplate liquid
Filter.
10. the method according to claim 1, wherein ultrafiltration membrance filter layer have multiple filter openings, the filter opening
Aperture is 3nm to 7nm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224733.6A CN109761387A (en) | 2019-03-24 | 2019-03-24 | Electroplating liquid purifying device and electroplate liquid purification method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224733.6A CN109761387A (en) | 2019-03-24 | 2019-03-24 | Electroplating liquid purifying device and electroplate liquid purification method |
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Family
ID=66459762
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| CN201910224733.6A Pending CN109761387A (en) | 2019-03-24 | 2019-03-24 | Electroplating liquid purifying device and electroplate liquid purification method |
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