CN208829766U - A kind of acidic etching liquid regeneration cycle equipment for reclaiming - Google Patents
A kind of acidic etching liquid regeneration cycle equipment for reclaiming Download PDFInfo
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- CN208829766U CN208829766U CN201821593976.4U CN201821593976U CN208829766U CN 208829766 U CN208829766 U CN 208829766U CN 201821593976 U CN201821593976 U CN 201821593976U CN 208829766 U CN208829766 U CN 208829766U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a kind of acidic etching liquid regeneration cycle equipment for reclaiming comprising etching waste liquor collecting tank, chlorine-evolution electrolysis slot, oxygen evolution electrolysis slot, regenerated liquid transfer tank, etching solution holding vessel and the exhaust gas tower being sequentially communicated.First anode plate and the first cathode plate equipped with the setting of several parallel intervals in chlorine-evolution electrolysis slot slot.Chlorine-evolution electrolysis slot is externally provided with chlorine detector and the first DC rectifier group.First DC rectifier group is electrically connected with first anode plate, the first cathode plate.Second plate plate and the second cathode plate equipped with the setting of several parallel intervals in oxygen evolution electrolysis slot slot.The outer second DC rectifier group of oxygen evolution electrolysis slot slot, copper ion analyzer and acidity titrate detector.Second DC rectifier group is electrically connected with second plate plate, the second cathode plate.The utility model aoxidizes monovalence copper using chlorine-evolution electrolysis slot, without adding oxidant；By using oxygen evolution electrolysis slot, acid group can produce, restore acidity, reduce hydrochloric acid addition.
Description
Technical field
The utility model relates to the technical field of industrial wastes resource utilization, in particular to a kind of acidic etching liquid regeneration
Circulating and recovering equipment.
Background technique
A large amount of acidic copper chloride waste etching solutions can be generated in wiring board production, the copper content in this waste liquid is generally existing
Between 100-130g/L, acid group is generally between 1-3N, and chlorinity is generally in 180g/L or so.Domestic existing research and development
Acid copper chloride etching liquid processing equipment generally all has copper recovering mechanism, but there is certain ask in use
Topic.
A kind of acidic etching liquid regeneration cycle as disclosed in patent No. 201720049603.X uses copper reclaimer, this sets
The standby regeneration technology for using wire type, i.e., connect electrolytic regeneration equipment with etching machine, regenerative response and etching reaction this to mutual
Progress is circuited sequentially for reversible reaction, etching solution can be recycled after regeneration, and regeneration liquid medicine stability is good, and etching factor closes
Lattice can save oxidant 70-90% after reuse, save hydrochloric acid 50-70%, reduce the discharge of 70% etching waste liquor.
But the shortcomings that equipment, is:
1, diaphragm assembly, and diaphragm assembly valuableness rapid wear are added in electrolytic cell, and diaphragm assembly can reduce electrolytic cell
Electric conductivity causes energy consumption to be increased sharply；
2, it needs that there is certain reagent cost using oxidant.
3, the acidity of etching solution is high, and hydrochloric acid is easy a large amount of volatilizations, requires supplementation with a large amount of hydrochloric acid in treatment process.
Utility model content
In view of the problems of the existing technology, the main purpose of the utility model is to provide a kind of regeneration of acidic etching liquid and follows
Ring equipment for reclaiming.
To achieve the above object, the utility model proposes acidic etching liquid regeneration cycle equipment for reclaiming comprising successively
Etching waste liquor collecting tank, chlorine-evolution electrolysis slot, oxygen evolution electrolysis slot, regenerated liquid transfer tank, etching solution holding vessel and the exhaust gas of connection
Tower.The etching solution holding vessel is connect with etching production line.Equipped with the setting of several parallel intervals in the chlorine-evolution electrolysis slot slot
First anode plate and the first cathode plate.The chlorine-evolution electrolysis slot is externally provided with for detecting the chlorine gas concentration in chlorine-evolution electrolysis slot slot
Chlorine detector, for driving the first DC rectifier group of the chlorine-evolution electrolysis slot.The first DC rectifier group and first
Anode plate, the electrical connection of the first cathode plate.Second plate plate equipped with the setting of several parallel intervals in the oxygen evolution electrolysis slot slot with
Second cathode plate.The oxygen evolution electrolysis slot slot is externally provided with the second DC rectifier group for driving the oxygen evolution electrolysis slot, for detecting
The copper ion analyzer of second order copper concentration in oxygen evolution electrolysis slot slot, and for detecting the acidity of solution in oxygen evolution electrolysis slot
Acidity titrates detector.The second DC rectifier group is electrically connected with second plate plate, the second cathode plate.The etching waste liquor
Collecting tank, chlorine-evolution electrolysis slot, oxygen evolution electrolysis slot, regenerated liquid transfer tank, etching solution holding vessel are connected to the exhaust gas tower.
In the utility model embodiment, the first anode plate is coating titanium anode plate, and its outer surface is equipped with analysis chlorine
Coated electrode.
In the utility model embodiment, the second plate plate is coating titanium anode plate, and its outer surface is equipped with analysis oxygen
Coated electrode.
In the utility model embodiment, the chlorine detector is polar-plate-type chlorine detector.
The technical solution of the utility model substitutes oxidizing monovalence copper, nothing by analysing chlorine anode in chlorine-evolution electrolysis slot
Oxidant need to be added, oxidant bring reagent cost is saved；Analysis oxygen anodes in oxygen evolution electrolysis slot can produce acid group, restore
Acidity in oxygen evolution electrolysis slot effectively reduces the usage amount of hydrochloric acid；In chlorine-evolution electrolysis slot and oxygen evolution electrolysis slot without increase every
Membrane module, electrolytic cell resistance is small, and low energy consumption；Chlorine detector, copper ion analyzer, the acidity titration detector of setting can be realized
Accurate control to electrolytic process reduces the wasted energy consumption of excessive electrolysis, while the etching solution after regeneration being made accurately to reach raw
Produce Con trolling index.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model acidic etching liquid regeneration cycle equipment for reclaiming；
The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
The utility model proposes a kind of acidic etching liquid regeneration cycle equipment for reclaiming.
Referring to Fig.1, Fig. 1 is the structural representation of one embodiment of the utility model acidic etching liquid regeneration cycle equipment for reclaiming
Figure.
As shown in Figure 1, the acidic etching liquid regeneration cycle equipment for reclaiming includes successively connecting in the utility model embodiment
Logical etching waste liquor collecting tank 100, chlorine-evolution electrolysis slot 200, oxygen evolution electrolysis slot 300, regenerated liquid transfer tank 400, etching solution storage
Tank 500 and exhaust gas tower (not shown).Etching solution holding vessel 500 is connect with etching production line.200 slot of chlorine-evolution electrolysis slot
Interior first anode plate and the first cathode plate equipped with the setting of several parallel intervals.Chlorine-evolution electrolysis slot 200 is externally provided with for detecting analysis
The chlorine detector 220 of chlorine gas concentration in 200 slot of chlorine electrolytic cell, for driving the first direct current of the chlorine-evolution electrolysis slot 200 whole
Flow device group 210.First DC rectifier group 210 is electrically connected with first anode plate, the first cathode plate.In 300 slot of oxygen evolution electrolysis slot
Second plate plate and the second cathode plate equipped with the setting of several parallel intervals.300 slot of oxygen evolution electrolysis slot, which is externally provided with, drives the analysis oxygen
Second DC rectifier group 310 of electrolytic cell 300, for detecting the copper ion of the second order copper concentration in 300 slot of oxygen evolution electrolysis slot
Analyzer 320, and the acidity titration detector 330 for detecting the acidity of solution in oxygen evolution electrolysis slot 300.Second direct current is whole
Stream device group 310 is electrically connected with second plate plate, the second cathode plate.Etching waste liquor collecting tank 100, chlorine-evolution electrolysis slot 200, analysis oxygen electricity
Solution slot 300, regenerated liquid transfer tank 400, etching solution holding vessel 500 are connected to exhaust gas tower.
In the utility model embodiment, first anode plate is coating titanium anode plate, and its outer surface is equipped with analysis chlorine coating
Electrode, using electro-catalysis analysis chlorine coated electrode as anode.
In the utility model embodiment, second plate plate is coating titanium anode plate, and its outer surface is equipped with analysis oxygen coating
Electrode, using electro-catalysis analysis oxygen coating electrode as anode.
In the utility model embodiment, chlorine detector 220 is polar-plate-type chlorine detector.
Working principle of the utility model is:
Will etch production line generate acidic etching waste liquid be collected into etching waste liquor collecting tank 100 after, acid etching is given up
Liquid is pumped into chlorine-evolution electrolysis slot 200, applies certain DC voltage to chlorine-evolution electrolysis slot 200 by the first current rectifier group, makes
It is second order copper that the monovalence copper in acidic etching waste liquid, which is obtained, in the surface oxidation of first anode plate, while monovalence copper is also in the first cathode
Plate surface is reduced to elemental copper, when the thickness of the first cathode plate reaches a certain level, replaces the in chlorine-evolution electrolysis slot 200
One cathode plate recycles the copper ion in acidic etching waste liquid.Electrolysis after a certain period of time, monovalence copper concentration in waste liquid significantly under
Drop, anode start generation chlorine and are sent to the control system inside equipment after the detected instrument of the chlorine of spilling detects to control
The DC voltage of first DC rectifier group 210.When the chlorine gas concentration that chlorine detector 220 detects is higher than the highest threshold value of setting
When, then the DC voltage of the first DC rectifier group 210 is reduced, if the chlorine gas concentration of detection is lower than the lowest threshold set,
Then improve the DC voltage of the first DC rectifier group 210.It as a result, can be by waste liquid 99.9% 1 in chlorine-evolution electrolysis slot 200
The removal of valence copper, while also preventing chlorine from generating.
Monovalence copper will be removed and containing micro chlorine, excessive cupric acidic etching waste liquid from chlorine-evolution electrolysis slot
200 are passed through oxygen evolution electrolysis slot 300, apply certain direct current to oxygen evolution electrolysis slot 300 by the second DC rectifier group 310
It presses, the chlorine in waste liquid is reduced to chloride ion in the second cathode plate surface, to remove the chlorine in waste liquid.Then, remaining
Micro monovalence copper is reduced to elemental copper in the second cathode plate surface prior to cupric, can be again by the second cathode plate of replacement
Recycle copper ion.Waste liquid is electrolysed after a certain period of time, and the cupric in solution starts to be reduced, and divalent copper concentration reduces, cupric
After concentration is detected by copper ion analyzer 320, the control system inside equipment is sent to control the second DC rectifier group
310 shut down.When the divalent copper concentration that copper ion analyzer 320 detects is higher than the threshold value of setting, then the second direct current is opened
Rectifier group 310 closes the second DC rectifier group 310 if the divalent copper concentration detected is lower than the threshold value set.
Due to, by electrolysis, to generate hydrogen ion acid group, restoring etching solution in 300 anode surface water of oxygen evolution electrolysis slot
Acidity, so as to reduce the additive amount of hydrochloric acid.Meanwhile in the acidity titration meeting real-time detection oxygen evolution electrolysis slot 300 of detector 330
Acidity, and will test the control system that result is sent to inside equipment, to control the direct current of the second DC rectifier group 310 output
Voltage.When the acidity of detection is higher than the threshold value of setting, then the DC voltage of the output of the second DC rectifier group 310 is reduced,
Conversely, the DC voltage of the output of the second DC rectifier group 310 is then improved when threshold value of the acidity of detection lower than setting,
So that the etching solution after regeneration accurately reaches production Con trolling index.
The technical solution of the utility model substitutes oxidizing monovalence by analysing chlorine anode in chlorine-evolution electrolysis slot 200
Copper saves oxidant bring reagent cost without adding oxidant；Analysis oxygen anodes in oxygen evolution electrolysis slot 300 can produce
Acid group restores the acidity in oxygen evolution electrolysis slot 300, effectively reduces the usage amount of hydrochloric acid；Chlorine-evolution electrolysis slot 200 and oxygen evolution electrolysis slot
Without increasing diaphragm assembly in 300, electrolytic cell resistance is small, and low energy consumption；Chlorine detector 220, the copper ion analyzer of setting
320, acidity titration detector 330 can realize the accurate control to electrolytic process, reduce the wasted energy consumption of excessive electrolysis, simultaneously
Etching solution after making regeneration accurately reaches production Con trolling index.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (3)
1. a kind of acidic etching liquid regeneration cycle equipment for reclaiming, which is characterized in that including be sequentially communicated etching waste liquor collecting tank,
Chlorine-evolution electrolysis slot, oxygen evolution electrolysis slot, regenerated liquid transfer tank, etching solution holding vessel and exhaust gas tower；The etching solution holding vessel with
Etch production line connection；
First anode plate and the first cathode plate equipped with the setting of several parallel intervals in the chlorine-evolution electrolysis slot slot；The analysis chlorine electricity
Solution slot is externally provided with the chlorine detector for detecting the chlorine gas concentration in chlorine-evolution electrolysis slot slot, for driving the chlorine-evolution electrolysis slot
First DC rectifier group；The first DC rectifier group is electrically connected with first anode plate, the first cathode plate；
Second plate plate and the second cathode plate equipped with the setting of several parallel intervals in the oxygen evolution electrolysis slot slot；The analysis oxygen electricity
Solution slot slot is externally provided with the second DC rectifier group for driving the oxygen evolution electrolysis slot, for detecting the second order copper in oxygen evolution electrolysis slot slot
The copper ion analyzer of concentration, and the acidity titration detector for detecting the acidity of solution in oxygen evolution electrolysis slot；Described
Two DC rectifier groups are electrically connected with second plate plate, the second cathode plate；
The etching waste liquor collecting tank, chlorine-evolution electrolysis slot, oxygen evolution electrolysis slot, regenerated liquid transfer tank, etching solution holding vessel are and institute
State the connection of exhaust gas tower.
2. acidic etching liquid regeneration cycle equipment for reclaiming as described in claim 1, which is characterized in that the first anode plate is
Coating titanium anode plate, and its outer surface is equipped with analysis chlorine coating.
3. acidic etching liquid regeneration cycle equipment for reclaiming as described in claim 1, which is characterized in that the second plate plate is
Coating titanium anode plate, and its outer surface is equipped with analysis oxygen coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593976.4U CN208829766U (en) | 2018-09-28 | 2018-09-28 | A kind of acidic etching liquid regeneration cycle equipment for reclaiming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593976.4U CN208829766U (en) | 2018-09-28 | 2018-09-28 | A kind of acidic etching liquid regeneration cycle equipment for reclaiming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208829766U true CN208829766U (en) | 2019-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821593976.4U Active CN208829766U (en) | 2018-09-28 | 2018-09-28 | A kind of acidic etching liquid regeneration cycle equipment for reclaiming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208829766U (en) |
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2018
- 2018-09-28 CN CN201821593976.4U patent/CN208829766U/en active Active
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