CN217479562U - Copper device is carried in acid etching waste liquid electrolysis - Google Patents

Abstract

The utility model relates to an acid etching waste liquid electrolysis copper extraction device, its characteristics lie in including the electrolysis cell body, the overflow jar, the circulation jar, the overflow pipe, circulation drawing liquid subassembly, the back flow, first ooff valve, the liquid suction pipe, the second ooff valve, be equipped with the electrolysis trough on the electrolysis cell body, be equipped with the overflow launder on the overflow jar, be equipped with the circulating bath on the circulation jar, communicate through the overflow passageway between circulating bath and the overflow launder, the electrolysis trough passes through the overflow pipe intercommunication with the circulating bath, circulation drawing liquid subassembly respectively with the electrolysis trough, the circulating bath is linked together, the both ends of back flow respectively with the overflow launder, the butt joint intercommunication of circulation drawing liquid subassembly, the liquid suction pipe is butt joint the intercommunication with circulation drawing liquid subassembly. The utility model discloses can electrolyze on one side, discharge back liquid on one side, add mother liquor on one side, this time that can significantly reduce to carry in the copper processing procedure pause to help improving electrolysis efficiency, it has that solution circulation is effectual, the electrolysis is comprehensive, electrolysis is effectual, recovery quality is high, the pipeline is simple, low in manufacturing cost's advantage.

Description

Copper device is carried in acid etching waste liquid electrolysis

Technical Field

The utility model relates to an electrolysis draws technical field, especially a copper device is carried to acid etching waste liquid electrolysis.

Background

At present, after etching process by acidic etching solution, a solution containing copper ions is generated, and the solution is called etching waste solution or mother solution. In order to recover copper ions from the mother liquor and recycle the etching solution, the mother liquor is usually subjected to copper extraction by an electrolysis method, wherein the solution after electrolysis is called post-electrolysis solution or post-solution, and the post-solution generally refers to a solution with copper ions less than or equal to 32 g/l.

The electrolytic copper extraction device for electrolytic copper extraction at present mainly comprises an electrolytic bath, a circulating bath and a circulating liquid extraction assembly, wherein the circulating liquid extraction assembly is respectively communicated with the electrolytic bath and the circulating bath in a butt joint mode, so that the solution in the electrolytic bath and the solution in the circulating bath can be circulated through the circulating liquid extraction assembly.

Before the electrolysis treatment, the mother liquor is added into the electrolytic tank, and then the mother liquor is continuously circulated in the electrolytic tank and the circulating tank through the circulating liquid pumping assembly. When the mother liquor is changed into post liquor through electrolysis, the electrolysis needs to be suspended, and new mother liquor can be added after the post liquor is discharged, and the post liquor cannot be discharged and added at the same time, because the post liquor can influence the concentration of copper ions in the mother liquor and the electrolysis quality; or the mother liquor is easy to be discharged along with the later liquor, thereby influencing the recovery quality of copper. And thus the electrolysis needs to be suspended for a relatively long time, so that the electrolysis efficiency is easily affected.

Meanwhile, the existing copper electrolysis extraction device has the defects of poor solution circulation effect, incomplete electrolysis, poor electrolysis effect, complex pipeline structure, high manufacturing cost and the like.

Therefore, it is necessary to redesign the structure of the copper electrowinning apparatus.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem and not enough, provide a copper device is carried in acid etching waste liquid electrolysis, this copper device is carried in acid etching waste liquid electrolysis can be on one side the electrolysis, discharge back liquid on one side, add mother liquor on one side, this time that can significantly reduce to carry pause in the copper processing procedure to help improving electrolytic efficiency, it has that solution circulation is effectual, the electrolysis is comprehensive, the electrolysis is effectual, recovery quality is high, the pipeline is simple, low in manufacturing cost etc. advantage.

The technical scheme of the utility model is realized like this:

the device for extracting copper by electrolyzing the acid etching waste liquid is characterized by comprising an electrolytic bath body, an overflow cylinder, a circulating cylinder, an overflow pipe, a circulating liquid extracting component, a return pipe, a first switch valve, a liquid extracting pipe and a second switch valve, wherein an inner groove of the electrolytic bath body forms an electrolytic bath, an inner groove of the overflow cylinder forms an overflow groove, the lower end of the overflow groove is provided with a liquid discharging hole, an inner groove of the circulating cylinder forms a circulating groove, the circulating cylinder is provided with a third switch valve which is in butt connection and communication with the lower end of the circulating groove, the lower end of the circulating groove is provided with an overflow channel communicated with the upper end of the overflow groove, two ends of the overflow pipe are respectively in butt connection and communication with the upper end of the electrolytic bath and the upper end of the circulating groove, the input end of the circulating liquid extracting component is in butt connection and communication with the third switch valve, and the output end of the circulating liquid extracting component is in butt connection and communication with the lower end of the electrolytic bath, the two ends of the return pipe are respectively in butt joint communication with the lower end of the overflow groove and the input end of the circulating liquid pumping assembly, the first switch valve is connected to the return pipe in series, one end of the liquid pumping pipe is in butt joint communication with the input end of the circulating liquid pumping assembly, and the second switch valve is connected to the liquid pumping pipe in series.

Preferably, a plurality of partition plates are arranged in the electrolytic tank side by side, the partition plates divide the electrolytic tank into a plurality of small electrolytic tanks, and an anode plate and a cathode plate are respectively arranged in each small electrolytic tank.

Preferably, the electrode distance X between the anode plate and the cathode plate in the same small electrolytic cell is 35 mm.

Preferably, the cathode plate is of a titanium plate structure.

Preferably, the separator is a polypropylene separator.

Preferably, the top surface of the electrolytic cell body is respectively provided with a left copper bar, a right copper bar and a rear copper bar, the left copper bar and the right copper bar are respectively transversely arranged at the front sides of the notches at the left end and the right end of the electrolytic cell, and the rear copper bar is also transversely arranged at the rear side of the notch of the electrolytic cell; a plurality of anode plates and a plurality of cathode plates are arranged in the left end of the electrolytic bath, the anode plates and the cathode plates are transversely arranged at intervals one by one, the anode plates are connected with a left copper bar, and the cathode plates are connected with the left end of a rear copper bar; a plurality of anode plates and a plurality of cathode plates are arranged at the right end of the electrolytic tank, the anode plates and the cathode plates are transversely arranged at intervals one by one, the anode plates are connected with the right end of the rear copper bar, and the cathode plates are connected with the right copper bar.

Preferably, the circulating liquid pumping assembly comprises a circulating pipe and a circulating pump, two ends of the circulating pipe are respectively in butt joint communication with the third switch valve and the lower end of the electrolytic cell, the circulating pump is connected in series on the circulating pipe, and the return pipe and the liquid pumping pipe are in butt joint on the circulating pipe.

Preferably, a liquid discharge pipe is butted on the liquid discharge hole, and a liquid discharge pump is connected on the liquid discharge pipe in series.

Preferably, the device for electrolytically extracting copper from acidic etching waste liquid further comprises a mother liquid tank, and the other end of the liquid extracting pipe is connected to the mother liquid tank.

Preferably, the overflow cylinder and the circulation cylinder are of an integral structure and jointly form a flow guide cylinder, an inner groove is formed in the flow guide cylinder, a first overflow partition plate and a second overflow partition plate which are arranged side by side are arranged in the middle of the inner groove, a middle overflow gap is reserved between the first overflow partition plate and the second overflow partition plate, a lower overflow gap is reserved between the bottom of the first overflow partition plate and the bottom of the inner groove, an upper overflow gap is reserved at the top of the second overflow partition plate, the lower overflow gap, the middle overflow gap and the upper overflow gap jointly form an overflow channel, the inner groove on one side of the first overflow partition plate forms a circulation groove, and the inner groove on one side of the second overflow partition plate forms an overflow groove.

The utility model has the advantages that: on the device for electrolyzing and extracting copper from acidic etching waste liquid, the circulating liquid-extracting assembly can extract the solution at the lower end of the circulating tank and supply the solution to the lower end of the electrolytic tank, and the overflow pipe can facilitate the solution at the upper end of the electrolytic tank to overflow into the circulating tank. Thus, the mother liquor can be more comprehensively circulated, so that comprehensive electrolytic treatment can be achieved, a very good electrolytic effect can be achieved, and the electrolytic quality is very high.

Through the arrangement of the liquid pumping pipe, the circulating liquid pumping assembly can be utilized to supplement the mother liquid into the electrolytic bath. The lower end of the circulating groove is provided with an overflow channel communicated with the upper end of the overflow groove. When the electrolyzed mother liquor becomes the post-liquor, the second switch valve can be opened by closing the first switch valve and the third switch valve, and new mother liquor can be replenished into the electrolytic bath through the circulating liquid pumping assembly. The post-bath in the circulation tank is introduced into the overflow tank through the overflow path and is discharged through the drain hole without suspending the electrolysis treatment. The device for electrolyzing and extracting the copper from the acidic etching waste liquid can electrolyze, discharge the back liquid and add the mother liquid at the same time, so that the time for pausing in the copper extraction treatment process can be greatly reduced, and the electrolytic efficiency can be improved.

And when the mother liquor enters the overflow groove, the second switch valve can be closed by opening the first switch valve and the circulating liquid pumping assembly, so that the mother liquor in the overflow groove returns to the electrolytic bath, the mother liquor is prevented from being discharged, and the copper recovery quality is very high.

Meanwhile, the device for electrolyzing and extracting copper from acid etching waste liquid has a simpler overall structure, and has the advantages of good solution circulation effect, comprehensive electrolysis, good electrolysis effect, high recovery quality, simple pipeline, low manufacturing cost and the like.

Drawings

FIG. 1 is a schematic view of the overall structure of the copper extraction device for electrolyzing acidic waste etching solution according to the present invention.

FIG. 2 is a schematic view of the structure of the electrolytic cell body in the overlooking direction.

FIG. 3 is a schematic view of the main view direction of the electrolytic cell body according to the present invention.

FIG. 4 is a schematic view of the cross-sectional structure of the electrolytic cell body in the left-hand direction.

Fig. 5 is a schematic structural diagram of the anode plate of the present invention.

Fig. 6 is a schematic structural view of the cathode plate of the present invention.

Fig. 7 is a schematic sectional view of the middle diversion cylinder of the present invention.

Detailed Description

As shown in FIG. 1, the device for extracting copper by electrolyzing acidic etching waste liquid according to the present invention comprises an electrolytic bath body 1, an overflow cylinder 2, a circulation cylinder 3, an overflow pipe 4, a circulation liquid-extracting assembly 5, a return pipe 6, a first switch valve 7, a liquid-extracting pipe 8, and a second switch valve 9, wherein the inner tank of the electrolytic bath body 1 constitutes an electrolytic bath 10, the inner tank of the overflow cylinder 2 constitutes an overflow tank 20, the lower end of the overflow tank 20 is provided with a liquid-discharging hole 201, the inner tank of the circulation cylinder 3 constitutes a circulation tank 30, the circulation cylinder 3 is provided with a third switch valve 31, the third switch valve 31 is in butt communication with the lower end of the circulation tank 30, the lower end of the circulation tank 30 is provided with an overflow passage 40 in communication with the upper end of the overflow tank 20, the two ends of the overflow pipe 4 are in butt communication with the upper end of the electrolytic bath 10 and the upper end of the circulation tank 30, respectively, the input end of the circulation liquid-extracting assembly 5 is in butt communication with the third switch valve 31, the output end of the circulating liquid-pumping assembly 5 is in butt connection and communication with the lower end of the electrolytic cell 10, two ends of the return pipe 6 are in butt connection and communication with the lower end of the overflow tank 20 and the input end of the circulating liquid-pumping assembly 5 respectively, the first switch valve 7 is connected in series to the return pipe 6, one end of the liquid-pumping pipe 8 is in butt connection and communication with the input end of the circulating liquid-pumping assembly 5, and the second switch valve 9 is connected in series to the liquid-pumping pipe 8.

In the device for electrolytically extracting copper from acidic etching waste liquid, the circulating liquid-extracting assembly 5 can extract the solution at the lower end of the circulating tank 30 and feed the solution into the lower end of the electrolytic tank 10, and the overflow pipe 4 can facilitate the solution at the upper end of the electrolytic tank 10 to overflow into the circulating tank 30. Thus, the mother liquor can be more comprehensively circulated, so that comprehensive electrolytic treatment can be achieved, a very good electrolytic effect can be achieved, and the electrolytic quality is very high.

By means of the arrangement of the liquid extraction pipe 8, mother liquor can be replenished into the electrolytic cell 10 by means of the circulating liquid extraction assembly 5. By providing an overflow passage 40 in communication with the upper end of the overflow tank 20 at the lower end of the circulation tank 30. When the electrolyzed mother liquor becomes the post-liquor, the first switch valve 7 and the third switch valve 31 are closed, the second switch valve 9 is opened, and new mother liquor can be replenished into the electrolytic bath 10 through the circulating liquid pumping assembly 5. The post-bath in the circulation tank 30 is introduced into the overflow tank 20 through the overflow path 40 and can be discharged through the drain holes 201 without suspending the electrolytic process. The device for electrolyzing and extracting the copper from the acidic etching waste liquid can electrolyze, discharge the back liquid and add the mother liquid at the same time, so that the time for pausing in the copper extraction treatment process can be greatly reduced, and the electrolytic efficiency can be improved.

And when the mother liquor enters the overflow groove 20, the first switch valve 7 and the circulating liquid-pumping assembly 5 can be opened, and the second switch valve 9 can be closed, so that the mother liquor in the overflow groove 20 returns to the electrolytic bath 10, the mother liquor is prevented from being discharged, and the recovery quality of copper can be ensured to be very high.

Meanwhile, the device for electrolyzing and extracting copper from acid etching waste liquid has a simpler overall structure, and has the advantages of good solution circulation effect, comprehensive electrolysis, good electrolysis effect, high recovery quality, simple pipeline, low manufacturing cost and the like.

As shown in fig. 1, the return pipe 6 is in abutting communication with the drain hole 201. Therefore, the holes in the overflow cylinder 2 can be reduced, and the processing difficulty is reduced.

As shown in FIG. 1, the electrolytic bath body 1 and the circulating cylinder 3 are provided with an exhaust pipe 110. Therefore, harmful gas, peculiar smell gas or other gases generated in the electrolytic process can be pumped away, so that the influence on the workshop environment and the health of workers can be reduced, and the safety and the applicability of the device for electrolyzing and extracting the copper from the acidic etching waste liquid can be improved.

As shown in fig. 3, a plurality of separators 101 are arranged side by side in the electrolytic cell 10, the separators 101 divide the electrolytic cell 10 into a plurality of small electrolytic cells 102, and each small electrolytic cell 102 is provided with an anode plate 103 and a cathode plate 104. By adopting the structure, the current efficiency is improved, and the reliability of the copper extraction device for electrolyzing the acidic etching waste liquid is further improved.

As shown in fig. 1, fig. 3 and fig. 4, a liquid inlet 11 is formed in the electrolytic cell body 1, an output end of the circulating liquid-pumping assembly 5 is connected to the liquid inlet 11, and a liquid guide hole 12 communicated with the liquid inlet 11 is formed in the bottom of each small electrolytic cell 102. This facilitates the stable introduction of the solution into each of the cells 102, thereby achieving a very good copper extraction effect.

As shown in fig. 1, 3 and 4, the overflow pipe 4 communicates with the upper end of each small electrolytic tank 102, and the overflow pipe 4 horizontally arranges the front sides of the electrolytic tank body 1 and the circulation cylinder 3. Therefore, a very good overflow effect can be achieved, and the requirement of practical use can be well met.

As shown in FIG. 2, the electrode distance X between the anode plate 103 and the cathode plate 104 in the same small electrolytic cell 102 is 35 mm. This can realize the maximize of current efficiency, and the current efficiency reaches 90% in normal use, and this helps further to improve the reliability and the suitability of this acid etching waste liquid electrolysis copper extraction device.

The cathode plate 104 is a titanium plate structure. Therefore, the copper electrolytic copper extracting device not only can ensure high structural strength and durability, but also can be convenient for the stable adhesion of copper, and is beneficial to further improving the reliability of the copper electrolytic copper extracting device by using the acidic etching waste liquid.

The separator 101 is a polypropylene separator. Thus, not only can the separation function be well realized, but also the high structural strength and durability of the separator 101 can be ensured, thereby being beneficial to improving the electrolysis quality and prolonging the service life.

As shown in fig. 1 to 3, a left copper bar 13, a right copper bar 14 and a rear copper bar 15 are respectively arranged on the top surface of the electrolytic cell body 1, the left copper bar 13 and the right copper bar 14 are respectively and transversely arranged on the front side of the notch at the left and right ends of the electrolytic cell 10, and the rear copper bar 15 is also transversely arranged on the rear side of the notch of the electrolytic cell 10; a plurality of anode plates 103 and a plurality of cathode plates 104 are arranged in the left end of the electrolytic bath 10, the anode plates 103 and the cathode plates 104 are transversely arranged at intervals one by one, the anode plates 103 are connected with the left copper bar 13, and the cathode plates 104 are connected with the left end of the rear copper bar 15; a plurality of anode plates 103 and a plurality of cathode plates 104 are arranged in the right end of the electrolytic bath 10, the anode plates 103 and the cathode plates 104 are transversely arranged at intervals, the anode plates 103 are connected with the right end of the rear copper bar 15, and the cathode plates 104 are connected with the right copper bar 14. Thus, when the left copper bar 13 is connected to the positive electrode and the right copper bar 14 is connected to the negative electrode, an electrolytic reaction can be generated in the electrolytic cell 10. And because the left copper bar 13 and the right copper bar 14 are both positioned at the front side, the assembly of the electric connection structure is only needed to be carried out at the front side of the electrolytic bath body 1, which can greatly facilitate the realization of electric connection, thereby contributing to further improving the convenience of assembly. And the use of electric energy can be better controlled, and a very good electrolysis effect can be ensured, thereby being beneficial to further improving the reliability and the applicability of the device for electrolyzing and extracting copper from the acidic etching waste liquid.

In the above-described configuration, as shown in FIG. 2, a plurality of parallel circuits can be formed at the left and right ends of the electrolytic bath 10, respectively, which enables two parallel circuit groups to be formed in the electrolytic bath 10 side by side in the left and right direction, and the two parallel circuit groups are connected in series. Thus, a complete circuit can be formed, and the requirement of practical use can be well met.

As shown in fig. 2 to 6, the cathode plate 104 and the anode plate 103 are arranged longitudinally, the top of the anode plate 103 and the top of the cathode plate 104 are connected with longitudinal copper bars 120, and the end of each longitudinal copper bar 120 is fixed on the corresponding copper bar (one of the left copper bar 13, the right copper bar 14 and the rear copper bar 15) by a screw (not shown in the figures). Therefore, the stability and the reliability of the installation and the positioning of the anode plate 103 and the cathode plate 104 can be improved, the disassembly requirement can be well met, and very reliable electric connection can be realized, which is favorable for further improving the reliability of the device for electrolyzing the acid etching waste liquid to extract copper.

As shown in fig. 2 to 4, the top surface of the electrolytic cell body 1 is provided with two horizontally arranged raised strips 16, the two raised strips 16 are respectively located at the front and rear sides of the notch of the electrolytic cell 10, the tops of the two raised strips 16 are provided with a plurality of horizontally arranged limiting clamping grooves 161, and the front and rear ends of the longitudinal copper bar 120 are respectively embedded in the corresponding limiting clamping grooves 161. The stability and the reliability of the installation and the positioning of the longitudinal copper bar 120 can be greatly improved, so that the stability and the reliability of the installation and the positioning of the anode plate 103 and the cathode plate 104 are further improved, and the reliability of the device for extracting copper by electrolyzing the acidic etching waste liquid is further improved.

The anode plate 103 adopts an oxygen evolution anode (which is patented before) which is independently developed, so that the device for electrolyzing and extracting copper from the acidic etching waste liquid does not generate chlorine, and a chlorine collecting and absorbing facility is not needed, thereby not only simplifying the device configuration, but also reducing the manufacturing cost and improving the safety.

As shown in fig. 1, the circulation pumping assembly 5 comprises a circulation pipe 51 and a circulation pump 52, wherein both ends of the circulation pipe 51 are respectively connected and communicated with the third on/off valve 31 and the lower end of the electrolytic cell 10, the circulation pump 52 is connected in series to the circulation pipe 51, and the return pipe 6 and the pumping pipe 8 are connected to the circulation pipe 51. The structure of the circulating liquid pumping assembly 5 is very simple and reliable, and the circulating liquid pumping assembly can be manufactured and assembled conveniently and can meet the requirement of actual use well, so that the applicability of the device for electrolyzing and extracting copper from acidic etching waste liquid is further improved.

As shown in fig. 1, a drain pipe 105 is connected to the drain hole 201, and a drain pump 106 is connected to the drain pipe 105 in series. Therefore, the efficiency and the convenience of discharge are improved, and the reliability and the applicability of the device for electrolyzing and extracting copper from the acidic etching waste liquid are further improved.

As shown in FIG. 1, the device for electrolytically extracting copper from acidic etching waste liquid further comprises a back liquid tank 50, and the output end of the liquid discharge pipe 105 extends into the back liquid tank 50. Thus, the liquid after being recycled can be conveniently concentrated, and the convenience of recycling is improved.

As shown in fig. 1, a switch valve (not shown) or a drain pump 106 is connected in series to the drain pipe 105, and is a pump with a check function. Thus, when the first switch valve 7 and the circulation pump 52 are turned on, the drain pipe 105 is closed, so that the solution in the overflow bath 20 can be more stably pumped out, and the actual use requirement can be well satisfied.

As shown in figure 1, the device for electrolytically extracting copper from the acidic etching waste liquid also comprises a mother liquor tank 60, and the other end of the liquid extracting pipe 8 is connected to the mother liquor tank 60. The device can facilitate the storage and output of the mother liquor, thereby facilitating the extraction and electrolysis, and the management of the mother liquor, which is beneficial to further improving the applicability of the device for electrolyzing and extracting copper from the acidic etching waste liquor.

As shown in fig. 1 and 7, the overflow cylinder 2 and the circulation cylinder 3 are integrated to form a diversion cylinder 70, an inner tank 701 is formed on the diversion cylinder 70, a first overflow partition 702 and a second overflow partition 703 are arranged side by side in the middle of the inner tank 701, a middle overflow gap 704 is reserved between the first overflow partition 702 and the second overflow partition 703, a lower overflow gap 705 is reserved between the bottom of the first overflow partition 702 and the bottom of the inner tank 701, an upper overflow gap 706 is reserved on the top of the second overflow partition 703, the lower overflow gap 705, the middle overflow gap 704 and the upper overflow gap 706 together form an overflow channel 40, the inner tank 701 on the side of the first overflow partition 702 forms the circulation tank 30, and the inner tank 701 on the side of the second overflow partition 703 forms the overflow tank 20. Therefore, the purpose of simplifying the structure can be achieved, the convenience for manufacturing the overflow cylinder 2 and the circulating cylinder 3 is improved, the overflow cylinder 2 and the circulating cylinder 3 are ensured to have high reliability, and the reliability and the applicability of the device for electrolyzing and extracting copper from the acidic etching waste liquid are further improved.

As shown in fig. 1, the overflow tube 4 has a height that is higher than the height of the upper overflow gap 706. Therefore, overflow can be well realized, and the backflow situation is avoided, so that the requirement of practical use can be well met.

The working principle is as follows:

the mother liquor adding process comprises: the first switch valve 7 and the third switch valve 31 are closed, the second switch valve 9 is opened, the mother liquor in the mother liquor tank 60 is pumped into the electrolytic tank 10 through the circulating liquid pumping assembly 5, when the mother liquor in the electrolytic tank 10 reaches a certain amount, the mother liquor enters the circulating tank 30 through the overflow pipe 4, and when the mother liquor in the circulating tank 30 reaches a certain amount, the mother liquor is added.

And (3) circulating an electrolysis process: the process is carried out next to the mother liquor adding process, after the mother liquor in the circulating tank 30 reaches a certain amount, the second switch valve 9 is directly closed, the third switch valve 31 is opened, and then the mother liquor in the electrolytic tank 10 and the circulating tank 30 can be circulated through the circulating liquid pumping assembly 5, so that the circulating electrolytic process can be realized.

And (3) a post liquid discharge process: when the mother liquor after the electrolysis treatment becomes a back liquor, the first switch valve 7 and the third switch valve 31 are closed, the second switch valve 9 is opened, and the circulating liquid pumping assembly 5 is kept in an opening state. At this time, new mother liquor is supplied to the electrolytic bath 10, and the post-liquor is pushed into the circulation tank 30, enters the overflow tank 20 through the overflow passage 40, and is finally pumped into the post-liquor tank 50 through the liquor discharge pump 106.

When new mother liquor appears at the lower layer of the overflow groove 20, the liquor drainage pump 106 is stopped, the first switch valve 7 and the third switch valve 31 are opened, the second switch valve 9 is closed, and the solution in the circulating groove 30 and the solution in the overflow groove 20 enter the electrolytic tank 10 together for circulation, so that the next electrolytic process can be carried out.

In the actual use process, the mother liquor can be supplemented and the post-liquor can be discharged, which depends on the actual situation, and the flow of adding the mother liquor while electrolyzing and discharging the post-liquor is not necessary, and other ways can be adopted.

As shown in FIG. 1, in order to accurately control the discharge standard of the post-liquid, the post-liquid automatic discharge after reaching the set 32g/l start-up is realized, and the design goal of continuing circulation above the concentration can adopt the following structure:

the first switch valve 7, the second switch valve 9 and the third switch valve 31 are all electromagnetic valves, and electronic densimeters (density testers, not shown in the figure, for detecting the content of copper ions) are respectively arranged in the circulation tank 30 and the overflow tank 20, and the circulation pump 52, the liquid discharge pump 106, the first switch valve 7, the second switch valve 9, the third switch valve 31 and the two electronic densimeters are also coordinately controlled through a master control circuit module (not shown in the figure).

Therefore, in the actual manufacturing process, the electronic densitometer can be arranged at other positions of the device according to the detection requirement, so that more comprehensive detection and control can be conveniently achieved.

When the electronic densimeter does not give a standard signal, the overflow cylinder 2 and the circulating cylinder 3 supply solution for the electrolytic bath body 1 together, and when the electronic densimeter gives the standard signal, the first switch valve 7 is closed, the liquid discharge pump 106 can be controlled by the liquid level controller, so that high-level discharge is achieved, and low-level stop is achieved.

When the mother liquor is supplemented into the electrolytic bath body 1, the supplementing can be carried out in the starting process of the liquid discharge pump 106 or after the liquid discharge pump 106 is stopped, the second switch valve 9 and the circulating pump 52 are required to be started when the mother liquor is supplemented, and the supplementing amount is controlled by a time relay (the supplementing time can be set according to the field condition).

In order to simplify the system configuration, the scheme is not specially provided with a mother liquor supplementing pump, but completed by a circulating pump 52, the mother liquor is brought into the electrolytic tank body 1 through the circulating pump 52, and the mother liquor does not enter the circulating cylinder 3 to be mixed and directly enters the electrolytic tank body 1 for electrolytic treatment.

The above-mentioned embodiment does the utility model discloses a preferred embodiment, all with the utility model discloses similar structure and the equivalence change of doing all should belong to the utility model discloses a protection category.

Claims (10)

1. The utility model provides an acid etching waste liquid electrolysis draws copper device which characterized in that: the electrolytic bath comprises an electrolytic bath body (1), an overflow cylinder (2), a circulating cylinder (3), an overflow pipe (4), a circulating liquid pumping component (5), a return pipe (6), a first switch valve (7), a liquid pumping pipe (8) and a second switch valve (9), wherein an inner groove of the electrolytic bath body (1) forms an electrolytic bath (10), the inner groove of the overflow cylinder (2) forms an overflow groove (20), the lower end of the overflow groove (20) is provided with a liquid discharge hole (201), the inner groove of the circulating cylinder (3) forms a circulating groove (30), the circulating cylinder (3) is provided with a third switch valve (31), the third switch valve (31) is in butt joint communication with the lower end of the circulating groove (30), the lower end of the circulating groove (30) is provided with an overflow channel (40) communicated with the upper end of the overflow groove (20), and two ends of the overflow pipe (4) are respectively communicated with the upper end of the electrolytic bath (10), The upper end of a circulating tank (30) is in butt joint communication, the input end of a circulating liquid pumping assembly (5) is in butt joint communication with a third switch valve (31), the output end of the circulating liquid pumping assembly (5) is in butt joint communication with the lower end of an electrolytic tank (10), the two ends of a return pipe (6) are in butt joint communication with the lower end of an overflow tank (20) and the input end of the circulating liquid pumping assembly (5) respectively, a first switch valve (7) is connected on the return pipe (6) in series, one end of a liquid pumping pipe (8) is in butt joint communication with the input end of the circulating liquid pumping assembly (5), and a second switch valve (9) is connected on the liquid pumping pipe (8) in series.

2. The acidic etching waste liquid electrolysis copper extraction device according to claim 1, characterized in that: a plurality of partition plates (101) are arranged in the electrolytic tank (10) side by side, the partition plates (101) divide the electrolytic tank (10) into a plurality of small electrolytic tanks (102), and an anode plate (103) and a cathode plate (104) are respectively arranged in each small electrolytic tank (102).

3. The apparatus for electrolytic extraction of copper from acidic etching waste solution according to claim 2, wherein: the electrode distance X between the anode plate (103) and the cathode plate (104) in the same small electrolytic tank (102) is 35 mm.

4. The acidic etching waste liquid electrolysis copper extraction device according to claim 2 or 3, characterized in that: the cathode plate (104) is of a titanium plate structure.

5. The apparatus for electrolytic extraction of copper from acidic etching waste solution according to claim 2, wherein: the partition plate (101) is a polypropylene partition plate.

6. The acidic etching waste liquid electrolysis copper extraction device according to claim 1, characterized in that: the top surface of the electrolytic cell body (1) is respectively provided with a left copper bar (13), a right copper bar (14) and a rear copper bar (15), the left copper bar (13) and the right copper bar (14) are respectively transversely arranged at the front side of the notch at the left end and the right end of the electrolytic cell (10), and the rear copper bar (15) is also transversely arranged at the rear side of the notch of the electrolytic cell (10); a plurality of anode plates (103) and a plurality of cathode plates (104) are arranged in the left end of the electrolytic bath (10), the anode plates (103) and the cathode plates (104) are transversely arranged at intervals one by one, the anode plates (103) are connected with a left copper bar (13), and the cathode plates (104) are connected with the left end of a rear copper bar (15); a plurality of anode plates (103) and a plurality of cathode plates (104) are arranged in the right end of the electrolytic tank (10), the anode plates (103) and the cathode plates (104) are transversely arranged at intervals one by one, the anode plates (103) are connected with the right end of the rear copper bar (15), and the cathode plates (104) are connected with the right copper bar (14).

7. The acidic etching waste liquid electrolysis copper extraction device according to claim 1, characterized in that: the circulating liquid pumping assembly (5) comprises a circulating pipe (51) and a circulating pump (52), two ends of the circulating pipe (51) are respectively in butt joint communication with the third switch valve (31) and the lower end of the electrolytic cell (10), the circulating pump (52) is connected to the circulating pipe (51) in series, and the return pipe (6) and the liquid pumping pipe (8) are in butt joint with the circulating pipe (51).

8. The acidic etching waste liquid electrolysis copper extraction device according to claim 1, characterized in that: a liquid discharge pipe (105) is butted on the liquid discharge hole (201), and a liquid discharge pump (106) is connected on the liquid discharge pipe (105) in series.

9. The acidic etching waste liquid electrolysis copper extraction device according to claim 1, characterized in that: the device also comprises a mother liquor tank (60), and the other end of the liquid pumping pipe (8) is connected to the mother liquor tank (60).

10. The acidic etching waste liquid electrolysis copper extraction device according to claim 1, characterized in that: the overflow cylinder (2) and the circulating cylinder (3) are of an integral structure and jointly form a flow guide cylinder (70), an inner groove (701) is formed on the flow guide cylinder (70), a first overflow partition plate (702) and a second overflow partition plate (703) which are arranged side by side are arranged in the middle of the inner groove (701), a middle overflow gap (704) is reserved between the first overflow partition plate (702) and the second overflow partition plate (703), a lower overflow gap (705) is reserved between the bottom of the first overflow partition plate (702) and the bottom of the inner groove (701), an upper overflow gap (706) is reserved at the top of the second overflow partition plate (703), the lower overflow gap (705), the middle overflow gap (704) and the upper overflow gap (706) jointly form an overflow channel (40), and the inner groove (701) on one side of the first overflow partition plate (702) forms a circulating groove (30), the inner groove (701) on one side of the second overflow partition (703) forms an overflow groove (20).

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