CN216378426U

CN216378426U - Acidic etching solution recycling device

Info

Publication number: CN216378426U
Application number: CN202122562791.5U
Authority: CN
Inventors: 宁萌萌; 张德香; 孔晓东; 邵勇; 陈亚钦
Original assignee: Sichuan Jianghua Microelectronic Materials Co ltd
Current assignee: Sichuan Jianghua Microelectronic Materials Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-26
Anticipated expiration: 2031-10-25

Abstract

The utility model relates to the field of etching solution recovery, and aims to provide a device for recycling acidic etching solution, which has the advantages of simple structure, strong practicability and the like. The technical scheme is as follows: the utility model provides an acid etching liquid circulation retrieval and utilization device, includes the electrolytic bath, be equipped with the control assembly of automatically regulated liquid level in the electrolytic bath, the control assembly is including setting up the installation cover in the electrolytic bath bottom, be connected with the feed liquor pipe on the installation cover, be equipped with out the liquid hole on the installation cover, wear to be equipped with the connecting rod on the installation cover, the tip department that is located the inside connecting rod of installation cover is equipped with shutoff portion, the top of connecting rod is equipped with the kickboard.

Description

Acidic etching solution recycling device

Technical Field

The utility model relates to the field of etching solution recovery, in particular to a device for recycling acidic etching solution.

Background

In the manufacturing process of the circuit board, a copper plate is etched by using a mixed solution of copper chloride and hydrochloric acid to form a conductive circuit, and the concentration of copper ions in the solution is continuously increased along with the etching, so that acid etching waste liquid is formed by discharging. The main components of the acidic etching waste liquid are copper chloride, hydrogen chloride, sodium chloride and the like, which seriously pollute the environment, influence the survival of microorganisms in water, destroy the granular structure of soil and influence the survival of crops.

In the prior art, an electrolytic method is used for recycling copper and an etching solution in waste liquid, namely, a cathode and an anode are arranged in an electrolytic cell to electrolyze the waste liquid so as to generate oxidation or reduction reaction. The electrolytic cell is generally controlled at a certain liquid level, and then the waste liquid is continuously electrolyzed; the control of the liquid level can avoid the influence on the electrolysis efficiency caused by too low liquid level and the overflow possibly caused by too high liquid level. In the prior art, a liquid level sensor is generally used for detecting and controlling the liquid level of an electrolytic cell, the mode is relatively complex, and a control circuit needs to be designed.

Disclosure of Invention

The utility model aims to provide a device for recycling acidic etching solution.

In order to realize the purpose of the utility model, the technical proposal adopted by the utility model is as follows: the utility model provides an acid etching liquid circulation retrieval and utilization device, includes the electrolytic bath, be equipped with the control assembly of automatically regulated liquid level in the electrolytic bath, the control assembly is including setting up the installation cover in the electrolytic bath bottom, be connected with the feed liquor pipe on the installation cover, be equipped with out the liquid hole on the installation cover, wear to be equipped with the connecting rod on the installation cover, the tip department that is located the inside connecting rod of installation cover is equipped with shutoff portion, the top of connecting rod is equipped with the kickboard.

Preferably, the connecting rod is provided with an inner cavity, a lifting rod penetrates through the inner cavity, the lifting rod and the inner cavity form threaded fit, and the floating plate is rotatably connected to the upper portion of the lifting rod.

Preferably, the plugging portion is of a round table-shaped structure, the small end of the plugging portion is connected with the connecting rod, a cavity in a table body shape is arranged at the inner top of the mounting cover, and the liquid outlet hole is formed in the side wall of the cavity.

Preferably, the top end of the lifting rod is connected with a rotating cap.

Preferably, the floating plate is a foam plate.

Preferably, a tank cover is arranged on the electrolytic tank, a plate electrode is arranged in the electrolytic tank, slots are formed in the inner side walls of the electrolytic tank, and two sides of the plate electrode are respectively inserted into the corresponding slots.

The beneficial effects of the utility model are concentrated and expressed as follows:

1. the liquid level of the electrolytic cell is regulated by the control assembly, the injection of waste liquid is automatically stopped when the maximum liquid level is reached, and when the waste liquid is reduced, the waste liquid can be automatically added into the electrolytic cell, so that the automatic regulation of the liquid level is realized.

2. The control assembly of the utility model is composed of an installation cover, a liquid inlet pipe, a connecting plate and a floating plate, wherein the upper limit height of the floating plate is the maximum height of the liquid level, and when the liquid level in the electrolytic cell gradually rises and contacts with the floating plate, the floating plate is driven to move upwards, and at the moment, the connecting rod is driven to move upwards; when the highest liquid level is reached, the plugging part automatically plugs the liquid outlet hole and stops injecting the waste liquid into the electrolytic cell; when the waste liquid in the electrolytic cell is reduced, the plugging part is separated from the liquid outlet hole, and the waste liquid is injected into the electrolytic cell in time; simple structure, practicality are strong.

Drawings

FIG. 1 is a schematic view of the overall construction of an electrolytic cell of the present invention;

FIG. 2 is a schematic view of the internal structure of the electrolytic cell of the present invention;

illustration of the drawings: 1. an electrolytic cell; 2. mounting a cover; 3. a liquid inlet pipe; 4. a liquid outlet hole; 5. a connecting rod; 6. a plugging section; 7. a floating plate; 8. an inner cavity; 9. a lifting rod; 10. rotating the cap; 11. a cavity; 12. a pool cover; 13. an electrode plate; 14. and (4) a slot.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, an acidic etching solution recycling device includes an electrolytic cell 1, in this embodiment, a cell cover 12 is disposed on the electrolytic cell 1, the cell cover 12 is used for sealing the electrolytic cell 1 to prevent harmful gas generated in an electrolytic process from being discharged into air, and an electrode plate 13 is disposed in the electrolytic cell 1; the electrolytic cell 1 is divided into an anode cell and a cathode cell, the anode cell and the cathode cell are separated by an ion exchange membrane, slots 14 are arranged on the inner side wall of the electrolytic cell 1, and two sides of the electrode plate 13 are respectively inserted into the corresponding slots 14.

In order to realize the regulation to the liquid level, be equipped with the control assembly of automatically regulated liquid level in electrolytic bath 1, electrolytic bath 1's positive pole pond and negative pole pond all are provided with control assembly, control assembly is including setting up the installation cover 2 in electrolytic bath 1 bottom, and the bottom at electrolytic bath 1 is connected to installation groove accessible welded mode, be connected with feed liquor pipe 3 on the installation cover 2, the one end that installation cover 2 was kept away from to feed liquor pipe 3 runs through electrolytic bath 1 for inject the etching solution waste liquid into electrolytic bath 1, be equipped with out liquid hole 4 on the installation cover 2, wear to be equipped with connecting rod 5 on the installation cover 2, the tip department that is located connecting rod 5 of installation cover 2 inside is equipped with shutoff portion 6, the top of connecting rod 5 is equipped with kickboard 7, and kickboard 7 preferably adopts the cystosepiment in this embodiment, can make kickboard 7 have great buoyancy. When the installation cover is used, waste liquid is injected into the installation cover 2 through the liquid inlet pipe 3, the plugging portion 6 and the liquid outlet hole 4 are separated from each other at the moment, the waste liquid can flow into the electrolytic cell 1 through the liquid outlet hole 4, the waste liquid in the electrolytic cell 1 is gradually increased, when the liquid level in the electrolytic cell 1 is contacted with the floating plate 7, the liquid level can be continuously raised at the moment, the floating plate 7 is synchronously raised along with the liquid level under the action of buoyancy, when the liquid level is raised to the maximum liquid level, the plugging portion 6 plugs the liquid outlet hole 4, and at the moment, the waste liquid in the installation cover 2 cannot enter the electrolytic cell 1; when the liquid level in the electrolytic cell 1 descends, even if waste liquid is supplemented into the electrolytic cell 1, the control assembly for liquid level adjustment has a simple structure and strong practicability.

Further, the connecting rod 5 is provided with an inner cavity 8, a lifting rod 9 penetrates through the inner cavity 8, the lifting rod 9 and the inner cavity 8 form threaded fit, the floating plate 7 is rotatably connected to the upper part of the lifting rod 9, and meanwhile, the top end of the lifting rod 9 is connected with a rotating cap 10; in this embodiment, connecting rod 5 itself can not rotate, only can rise or descend, and when rotating rotatory cap 10, lifter 9 takes kickboard 7 to rise or descend, can realize adjusting the maximum height of liquid level to adapt to different electrolysis demands, promoted control assembly's commonality.

Further, the plugging part 6 is of a circular truncated cone-shaped structure, the small end of the plugging part 6 is connected with the connecting rod 5, the inner top of the mounting cover 2 is provided with a cavity 11 in a truncated cone shape, and the liquid outlet hole 4 is formed in the side wall of the cavity 11; the cooperation of the plugging portion 6 and the cavity 11 in the shape of a circular truncated cone can increase the contact area of the plugging portion and the cavity, and when the maximum liquid level is reached, the plugging area can be increased, and the sealing performance is improved.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.

Claims

1. The utility model provides an acid etching solution circulation retrieval and utilization device, includes electrolytic bath (1), its characterized in that: be equipped with the control assembly of automatically regulated liquid level in electrolytic bath (1), the control assembly is including setting up installation cover (2) in electrolytic bath (1) bottom, be connected with feed liquor pipe (3) on installation cover (2), be equipped with on installation cover (2) and go out liquid hole (4), wear to be equipped with connecting rod (5) on installation cover (2), the tip department that is located connecting rod (5) of installation cover (2) inside is equipped with shutoff portion (6), the top of connecting rod (5) is equipped with kickboard (7).

2. The device of claim 1, wherein the acidic etching solution is recycled by: connecting rod (5) are equipped with inner chamber (8), wear to be equipped with lifter (9) in inner chamber (8), lifter (9) and inner chamber (8) constitute screw-thread fit, kickboard (7) rotate to be connected on the upper portion of lifter (9).

3. The device of claim 2, wherein the acidic etching solution is recycled by: the top end of the lifting rod (9) is connected with a rotating cap (10).

4. The device of claim 2, wherein the acidic etching solution is recycled by: the plugging part (6) is of a circular truncated cone-shaped structure, the small end of the plugging part (6) is connected with the connecting rod (5), the inner top of the mounting cover (2) is provided with a cavity (11) which is in a truncated cone shape, and the liquid outlet hole (4) is formed in the side wall of the cavity (11).

5. The device of claim 2, wherein the acidic etching solution is recycled by: the floating plate (7) is a foam plate.

6. The device of claim 1, wherein the acidic etching solution is recycled by: be equipped with on electrolytic cell (1) pond lid (12), be equipped with plate electrode (13) in electrolytic cell (1), be equipped with slot (14) on the relative inside wall of electrolytic cell (1), the both sides of plate electrode (13) are inserted respectively and are established in corresponding slot (14).