CN219195161U

CN219195161U - Copper recovery device by electrolysis of brown chemical wastewater

Info

Publication number: CN219195161U
Application number: CN202320542561.9U
Authority: CN
Inventors: 何伟雄; 吴刚; 汪为臣
Original assignee: Guangdong Zhongyi Environmental Protection Technology Co ltd
Current assignee: Guangdong Zhongyi Environmental Protection Technology Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-06-16
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a device for electrolyzing and recycling copper from brown oxidation wastewater, which comprises an electrolytic tank, wherein the brown oxidation wastewater and a reagent after heating pretreatment are injected into the electrolytic tank through a liquid inlet pipe, a servo motor is started to drive a stirring rod to rotate and stir and mix through a rotating shaft, an anode rod and a cathode rod are started to carry out electrolytic sedimentation, an electromagnetic valve is started to discharge wastewater, metal copper and sediment through a liquid outlet pipe, and meanwhile, the servo motor is started to drive a crushing ring to rotate and break up the metal copper and sediment through the rotating shaft, the wastewater is filtered by a filter screen plate in a collecting frame and then is separated from the metal copper and sediment through a water outlet pipe, and then the metal copper and sediment on the filter screen plate are taken out to carry out copper recycling and extracting work, so that the aim of conveniently avoiding pipeline blockage caused by a large amount of metal copper and sediment generated after the electrolysis of the brown oxidation wastewater is realized, and the problem that the pipeline blockage device is difficult to normally operate is solved.

Description

Copper recovery device by electrolysis of brown chemical wastewater

Technical Field

The utility model relates to the technical field of palm-oxidation wastewater electrolysis, in particular to a device for recovering copper by palm-oxidation wastewater electrolysis.

Background

In the PCB industry, as the browning treatment procedure is a chemical copper etching reaction process, when the amount of the dissolved copper in the browning liquid exceeds the standard, the browning effect is invalid, and thus, the browning waste liquid is generated. The brown oxide liquid mainly contains high-concentration sulfuric acid, hydrogen peroxide, polyethylene glycol, an organic copper microetching agent (such as azole, pyrrole and other compounds), and an organic hydrogen peroxide stabilizer (such as EDTA, benzenesulfonic acid and thioglycollic acid), and a large amount of copper ions (30-50 g/L) are simultaneously dissolved in the waste liquid. According to statistics: over 90% of printed circuit board manufacturers at home and abroad adopt brown oxidation technology, and the annual production of brown oxidation waste liquid at home is up to 7000 ten thousand tons.

Before the brown waste liquid is subjected to electrolytic treatment, heating pretreatment is firstly carried out, after oxidizing agents in the waste liquid are broken, then the electrolytic device is utilized to extract metallic copper in the brown waste liquid, copper ions in the brown waste liquid are reduced to below 1g/L from 30g/L, and the brown waste liquid can be discharged.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a device for electrolyzing and recovering copper from brown oxidation wastewater, which is used for solving the problems in the background art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a brown chemical wastewater electrolysis retrieves copper device, includes the electrolytic tank, electrolytic tank top surface fixedly connected with apron, apron top surface fixedly connected with servo motor, and servo motor output and apron rotate to be connected, servo motor output fixedly connected with rotation axis, rotation axis surface fixedly connected with puddler, rotation axis surface fixedly connected with broken ring, electrolytic tank inner wall fixedly connected with anode rod, electrolytic tank inner wall fixedly connected with cathode rod, electrolytic tank surface fixedly connected with support, the inside business turn over liquid mechanism that is provided with of apron, the inside filter element that is provided with of support.

Preferably, the liquid inlet and outlet mechanism comprises a liquid inlet pipe, a liquid outlet pipe and an electromagnetic valve, wherein the liquid inlet pipe is fixedly connected with the cover plate, the liquid outlet pipe is fixedly connected with the electrolytic tank, and the electromagnetic valve is fixedly connected with the liquid outlet pipe.

Preferably, the filter component comprises a collecting frame, a filter screen plate and a drain pipe, wherein the collecting frame is fixedly connected with the support, the filter screen plate is fixedly connected with the collecting frame, and the drain pipe is fixedly connected with the collecting frame.

Preferably, the electrolytic tank is circular, and the electrolytic tank is made of insulating materials.

Preferably, the stirring rods are multiple in number, and the stirring rods are all positioned on the surface of the rotating shaft.

Preferably, the anode rod and the cathode rod are both positioned inside the electrolytic tank, and the anode rod and the cathode rod are both positioned between the plurality of stirring rods.

Compared with the prior art, the utility model has the beneficial effects that: the brown chemical wastewater electrolytic copper recovery device is characterized in that brown chemical wastewater and a reagent after heating pretreatment are injected into an electrolytic tank through a liquid inlet pipe, a servo motor is started to drive a stirring rod to rotate through a rotating shaft for stirring and mixing, an anode rod and a cathode rod are started to carry out electrolytic sedimentation, an electromagnetic valve is started to discharge wastewater, metal copper and sediment through a liquid outlet pipe, meanwhile, the servo motor is started to drive a crushing ring to rotate through the rotating shaft for scattering the metal copper and sediment, the wastewater is filtered by a filter screen plate in a collecting frame and then is separated from the metal copper and sediment and discharged through a water outlet pipe, and then the metal copper and sediment on the filter screen plate are taken out for copper recovery and extraction; the method realizes the aim of conveniently avoiding the blockage of the pipeline by the metal copper and the sediment when the brown wastewater is subjected to electrolysis, and solves the problem that the pipeline blockage device is difficult to normally operate because a large amount of metal copper and sediment are generated after the brown wastewater is electrolyzed.

Drawings

FIG. 1 is an isometric view of a structure of the present utility model;

FIG. 2 is a rear cross-sectional view of the structure of the present utility model;

fig. 3 is an enlarged view of the structure a of the present utility model.

In the figure: 1. an electrolytic tank; 2. a cover plate; 3. a servo motor; 4. a rotation shaft; 5. a stirring rod; 6. a crushing ring; 7. an anode rod; 8. a cathode rod; 9. a bracket; 10. a liquid inlet pipe; 11. a liquid outlet pipe; 12. an electromagnetic valve; 13. a collection frame; 14. a filter screen plate; 15. and (5) a water drain pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to figures 1-3, the device for electrolyzing and recycling copper from brown chemical wastewater comprises an electrolytic tank 1, wherein the electrolytic tank 1 is circular, the electrolytic tank 1 is made of insulating materials and is used for mixing and electrolyzing waste liquid, the condition of electric leakage is avoided, a cover plate 2 is fixedly connected to the top surface of the electrolytic tank 1, a servo motor 3 is fixedly connected to the top surface of the cover plate 2, the output end of the servo motor 3 is rotationally connected with the cover plate 2, a rotating shaft 4 is fixedly connected to the output end of the servo motor 3, stirring rods 5 are fixedly connected to the surface of the rotating shaft 4, the stirring rods 5 are multiple in number, the stirring rods 5 are all positioned on the surface of the rotating shaft 4 and are convenient for mixing brown chemical waste liquid and reagents, a crushing ring 6 is fixedly connected to the surface of the rotating shaft 4, an anode rod 7 is fixedly connected to the inner wall of the electrolytic tank 1, a cathode rod 8 is fixedly connected to the inner wall of the electrolytic tank 1, the anode rod 7 and the cathode rod 8 are both positioned inside the electrolytic tank 1, the anode rod 7 and the cathode rod 8 are positioned among the stirring rods 5 and used for carrying out electrolysis work, collision with the stirring rods 5 is avoided, a bracket 9 is fixedly connected to the surface of the electrolytic tank 1, a liquid inlet and outlet mechanism is arranged inside the cover plate 2 and consists of a liquid inlet pipe 10, a liquid outlet pipe 11 and an electromagnetic valve 12, the liquid inlet pipe 10 is fixedly connected with the cover plate 2, the liquid outlet pipe 11 is fixedly connected with the electrolytic tank 1, the electromagnetic valve 12 is fixedly connected with the liquid outlet pipe 11 and used for filling brown chemical wastewater and reagents, meanwhile, the electrolytic wastewater is conveniently discharged, a filter assembly is arranged inside the bracket 9 and consists of a collecting frame 13, a filter screen 14 and a drain pipe 15, the collecting frame 13 is fixedly connected with the filter screen 14, the drain pipe 15 is fixedly connected with the collecting frame 13 and used for separating wastewater from metal copper and sediment, the method is convenient for copper recovery and extraction, the brown chemical wastewater and the reagent after heating pretreatment are injected into the electrolytic tank 1 through the liquid inlet pipe 10, the servo motor 3 is started to drive the stirring rod 5 to rotate through the rotating shaft 4, stirring and mixing are carried out, the anode rod 7 and the cathode rod 8 are started to carry out electrolytic sedimentation, the electromagnetic valve 12 is started to discharge the wastewater, metal copper and sediment through the liquid outlet pipe 11, meanwhile, the servo motor 3 is started to drive the crushing ring 6 to rotate through the rotating shaft 4 to break up the metal copper and the sediment, the wastewater is filtered by the filter screen plate 14 in the collecting frame 13 and then is separated from the metal copper and the sediment and discharged through the water outlet pipe 15, and then the metal copper and the sediment on the filter screen plate 14 are taken out to carry out copper recovery and extraction, so that the aim of conveniently avoiding the pipeline from being blocked by the metal copper and the sediment when the brown chemical wastewater is realized, and the problem that the pipeline blocking device is difficult to normally operate due to the generation of a large amount of metal copper and the sediment after the brown chemical wastewater is electrolyzed is solved.

The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.

When in use: firstly, the brownification waste water and reagent after heating pretreatment are injected into an electrolytic tank 1 through a liquid inlet pipe 10, a servo motor 3 is started to drive a rotary shaft 4 to rotate, a stirring rod 5 is driven to rotate through the rotation of the rotary shaft 4, the brownification waste water and the reagent are stirred and mixed through the rotation of the stirring rod 5, then an anode rod 7 and a cathode rod 8 are started to carry out electrolytic work, the servo motor 3 is stopped to enable the brownification waste water to settle, an electromagnetic valve 12 is started to discharge the waste water, metal copper and sediment through a liquid outlet pipe 11 after settling, meanwhile, the servo motor 3 is started to drive a crushing ring 6 to rotate through the rotary shaft 4, the metal copper and sediment are scattered to avoid the blockage of the liquid outlet pipe 11, the waste water is filtered by a filter screen 14 in a collecting frame 13 and then separated from the metal copper and sediment, the separated waste water can be discharged through a water outlet pipe 15, and the metal copper and sediment on the filter screen 14 can be recovered and extracted after being taken out.

In summary, this brown chemical wastewater electrolysis recovery copper device, the brown chemical wastewater after the heat pretreatment and reagent are poured into the electrolytic tank 1 through feed liquor pipe 10, start servo motor 3 drives puddler 5 through rotation axis 4 and rotates stirring mix, start positive pole 7 and negative pole 8 and carry out electrolytic settlement, open solenoid valve 12 and discharge waste water and metallic copper and precipitate through drain pipe 11, simultaneously start servo motor 3 and drive broken ring 6 through rotation axis 4 and break up metallic copper and precipitate, waste water is filtered with metallic copper and precipitate separation through drain pipe 15 after collecting the filter screen plate 14 in frame 13, can carry out copper recovery extraction work after taking out metallic copper and precipitate on the filter screen plate 14 again, the purpose of avoiding metallic copper and precipitate to block up the pipeline when brown chemical wastewater carries out electrolysis work is realized, avoid producing a large amount of metallic copper and precipitate after the brown chemical wastewater electrolysis, lead to the problem that pipeline blocking device is difficult to normal operating, be used for solving the problem that proposes in the above-mentioned background technology.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a brown chemical wastewater electrolysis retrieves copper device, includes electrolytic tank (1), its characterized in that, electrolytic tank (1) top surface fixedly connected with apron (2), apron (2) top surface fixedly connected with servo motor (3), and servo motor (3) output and apron (2) swivelling joint, servo motor (3) output fixedly connected with rotation axis (4), rotation axis (4) fixedly connected with puddler (5), rotation axis (4) fixedly connected with broken ring (6), electrolytic tank (1) inner wall fixedly connected with anode rod (7), electrolytic tank (1) inner wall fixedly connected with cathode rod (8), electrolytic tank (1) fixedly connected with support (9), apron (2) inside is provided with business turn over liquid mechanism, support (9) inside is provided with filtering element.

2. The device for electrolyzing and recycling copper from the brown chemical wastewater according to claim 1, wherein the liquid inlet and outlet mechanism comprises a liquid inlet pipe (10), a liquid outlet pipe (11) and an electromagnetic valve (12), the liquid inlet pipe (10) is fixedly connected with the cover plate (2), the liquid outlet pipe (11) is fixedly connected with the electrolytic tank (1), and the electromagnetic valve (12) is fixedly connected with the liquid outlet pipe (11).

3. The device for electrolyzing and recycling copper from the brown chemical wastewater according to claim 1, wherein the filtering assembly consists of a collecting frame (13), a filtering screen plate (14) and a drain pipe (15), the collecting frame (13) is fixedly connected with the support (9), the filtering screen plate (14) is fixedly connected with the collecting frame (13), and the drain pipe (15) is fixedly connected with the collecting frame (13).

4. The device for electrolyzing and recovering copper from the brown chemical wastewater according to claim 1, wherein the electrolytic tank (1) is circular, and the electrolytic tank (1) is made of an insulating material.

5. The device for electrolyzing and recovering copper from the brown chemical wastewater according to claim 1, wherein the stirring rods (5) are plural in number, and the stirring rods (5) are positioned on the surface of the rotating shaft (4).

6. The device for electrolyzing and recovering copper from the brown oxidation wastewater according to claim 1, wherein the anode rod (7) and the cathode rod (8) are both positioned inside the electrolytic tank (1), and the anode rod (7) and the cathode rod (8) are both positioned between the plurality of stirring rods (5).