A carbon treatment system for an electroplating solution

Abstract

The present invention discloses a carbon treatment system for electroplating solution, belonging to the technical field of electroplating solution treatment. It includes a temporary storage mechanism, which includes a temporary storage tank fixedly installed on a base. A first connecting pipe is provided on the temporary storage tank, and a first stirrer is arranged inside the temporary storage tank; a carbon addition and stirring mechanism, which includes a stirring tank and a second stirrer, and the stirring tank is communicated with the temporary storage tank. In the present invention, the waste liquid in the electroplating tank is sent to the temporary storage tank in batches for stirring and temporary storage. Activated carbon is added to the stirring tank through a carbon addition mechanism. The waste liquid is fully mixed with the activated carbon in the stirring tank, and then the waste liquid mixed with the activated carbon is sent into a vacuum tank for standing. The activated carbon fully filters the dirty impurities in the waste liquid, and after the decarbonizer removes the waste carbon, the clean liquid is discharged back into the electroplating tank again, realizing the carbon treatment of the waste liquid, making the extraction, temporary storage, filtration and decarbonization integrated, reducing the working intensity, improving the treatment efficiency and avoiding serious waste.

Description

Technical Field

[0001] The present invention belongs to the technical field of electroplating solution treatment, and particularly relates to a carbon treatment system for electroplating solution. Background Art

[0002] Electroplating is an important process in the circuit board manufacturing process. For the acidic copper sulfate electroplating solution used for copper plating on the circuit board lines, due to the presence of organic film / sensitized ink and other organic film barriers, a large amount of impurities and pollution particles will also be brought in during the process of the circuit board shuttling between various chemical tanks. Over time, the situation of organic pollution is particularly serious. If these organic pollutions, impurities and pollution particles in the chemical solution are not filtered out, it will seriously affect the quality and appearance of the circuit board.

[0003] Chinese Patent (CN201811402711.6) discloses a carbon treatment device for electroplating solution, which includes a material bucket for containing and treating electroplating solution, an electroplating tank for electroplating work, and a discharge part for discharging sludge and waste residue generated after purifying the electroplating solution. The bottom of the material bucket is a sedimentation tank. A stirring component and a heating component are arranged in the material bucket. A stirring motor is arranged at the top of the material bucket, and the output end of the stirring motor is connected to the stirring component. And an air injection component for assisting uniform stirring is arranged at the junction of the material bucket and the sedimentation tank.

[0004] Currently, to solve the above problems, the method commonly used in the industry is: usually filter with a high-efficiency carbon fiber filter element every week or month to reduce and delay the content of TOC in the copper plating solution. When the pollution of the chemical solution in the electroplating tank reaches the maximum limit, manually use a filtration pump to pump the chemical solution into the carbon treatment tank for carbon treatment, and then manually pump the chemical solution back into the tank for reuse after carbon treatment. Although this treatment method can improve the pollution degree of the chemical solution to a certain extent, it still cannot completely remove the impurities and pollution particles in the chemical solution, cannot ensure the cleanliness of the chemical solution, and the manual operation is not systematic, with a long time-consuming and large workload, low treatment efficiency, serious waste and high cost. Summary of the Invention

[0005] The purpose of the present invention is to propose a carbon treatment system for electroplating solution to solve the problems of large workload, low treatment efficiency and serious waste caused by using filter elements for filtration or centralized filtration in a carbon treatment tank when dealing with particles in electroplating solution.

[0006] To achieve the above purpose, the present invention adopts the following technical scheme: A carbon treatment system for electroplating solution, which includes:

[0007] A temporary storage mechanism, which includes a temporary storage tank. The temporary storage tank is fixedly installed on a base. A first connecting pipe is arranged on the temporary storage tank. A first stirrer is arranged in the temporary storage tank;

[0008] Carbon addition and stirring mechanism, which includes a stirring tank and a second mixer. The stirring tank is communicated with the temporary storage tank. The second mixer is arranged inside the stirring tank, and a carbon addition mechanism is provided on the stirring tank.

[0009] Mixing and filtering mechanism, which includes a vacuum tank and a decarbonizer. The vacuum tank is communicated with the stirring tank, the decarbonizer is communicated with the vacuum tank, a waste carbon collection mechanism is provided on the decarbonizer, a second connecting pipe is provided on the decarbonizer, and a rotation driver is provided on the decarbonizer.

[0010] Scrap vehicle, which is located on one side of the decarbonizer and is located below the waste carbon collection mechanism.

[0011] As a further description of the above technical solution:

[0012] A vacuum pump and an exhaust valve are provided on the vacuum tank.

[0013] As a further description of the above technical solution:

[0014] A sewage discharge valve is connected to the bottom of the temporary storage tank.

[0015] As a further description of the above technical solution:

[0016] The carbon addition mechanism includes a carbon addition hopper, a cylinder and a sealing plate. The carbon addition hopper is fixedly installed on the stirring tank, the cylinder is fixedly installed on the carbon addition hopper, the sealing plate is fixedly installed on the cylinder, and the sealing plate blocks the carbon addition hopper.

[0017] As a further description of the above technical solution:

[0018] The waste carbon collection mechanism includes a scraper and a discharge hopper. The scraper is fixedly installed on the decarbonizer and the scraper abuts against the decarbonizer. The discharge hopper is arranged on the side wall of the decarbonizer and is located below the scraper.

[0019] As a further description of the above technical solution:

[0020] A secondary hopper is hinged inside the discharge hopper.

[0021] As a further description of the above technical solution:

[0022] The scraper includes a rotating shaft, a plurality of blades and a driving motor. The driving motor is fixedly connected to the decarbonizer, the rotating shaft is fixedly connected to the driving motor, the blades are fixedly connected to the rotating shaft, and the plurality of blades are arranged in a circular array along the axis of the rotating shaft, and the blades abut against the decarbonizer.

[0023] As a further description of the above technical solution:

[0024] A speed reducer is connected to the drive motor.

[0025] As a further description of the above technical solution:

[0026] A control cabinet is provided on the base.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0028] 1. In the present invention, the waste liquid in the electroplating tank is sent to the temporary storage tank in batches for stirring and temporary storage. Activated carbon is added to the stirring tank by the carbon addition mechanism. The waste liquid is fully mixed with the activated carbon in the stirring tank, and then the waste liquid mixed with the activated carbon is sent into the vacuum tank for standing. The activated carbon fully filters the dirty impurities in the waste liquid. After the decarbonizer removes the waste carbon, the clean liquid is discharged back into the electroplating tank again, realizing the carbon treatment of the waste liquid, making the extraction, temporary storage, filtration and decarbonization integrated, reducing the working intensity, improving the treatment efficiency and avoiding serious waste.

[0029] 2. In the present invention, the decarbonizer is driven to rotate by the rotation driver, the drive motor drives the blade to rotate, the blade alternately scrapes the waste carbon, and the waste carbon is introduced into the waste vehicle through the discharge hopper and the auxiliary hopper, realizing the automatic collection of the waste carbon and reducing the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a carbon treatment system for electroplating solution.

[0031] Figure 2 It is a schematic diagram of the internal structure of a carbon treatment system for electroplating solution Figure 1 .

[0032] Figure 3 It is a schematic diagram of the internal structure in a carbon treatment system for electroplating solution Figure 2 .

[0033] Figure 4 It is Figure 3 a partial enlarged view of part A in

[0034] Figure 5 It is a schematic diagram of the structure of the waste collection mechanism in a carbon treatment system for electroplating solution.

[0035] Legend Explanation:

[0036] 1. Temporary storage mechanism; 2. Temporary storage tank; 3. Base; 4. First connecting pipe; 5. First mixer; 6. Carbon addition and mixing mechanism; 61. Mixing tank; 62. Second mixer; 7. Carbon addition mechanism; 71. Carbon addition hopper; 72. Cylinder; 73. Sealing plate; 8. Mixing and filtering mechanism; 81. Vacuum tank; 82. Decarbonizer; 9. Waste carbon collection mechanism; 91. Scraper; 911. Rotating shaft; 912. Blade; 913. Driving motor; 92. Discharge hopper; 10. Second connecting pipe; 11. Rotating driver; 12. Waste material cart; 13. Vacuum pump; 14. Exhaust valve; 15. Drain valve; 16. Auxiliary hopper; 17. Reducer; 18. Control cabinet. Detailed implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] Please refer to Figures 1-5 , the present invention provides a technical solution: a carbon treatment system for electroplating solution, including:

[0039] The temporary storage mechanism 1 includes a temporary storage tank 2, the temporary storage tank 2 is fixedly installed on the base 3, a first connecting pipe 4 is arranged on the temporary storage tank 2, and a first mixer 5 is arranged in the temporary storage tank 2;

[0040] The carbon addition and mixing mechanism 6 includes a mixing tank 61 and a second mixer 62, the mixing tank 61 is communicated with the temporary storage tank 2, the second mixer 62 is arranged in the mixing tank 61, and a carbon addition mechanism 7 is arranged on the mixing tank 61;

[0041] The mixing and filtering mechanism 8 includes a vacuum tank 81 and a decarbonizer 82, the vacuum tank 81 is communicated with the mixing tank 61, the decarbonizer 82 is communicated with the vacuum tank 81, a waste carbon collection mechanism 9 is arranged on the decarbonizer 82, a second connecting pipe 10 is arranged on the decarbonizer 82, and a rotating driver 11 is arranged on the decarbonizer 82;

[0042] The waste material cart 12 is located on one side of the decarbonizer 82, and the waste material cart 12 is located below the waste carbon collection mechanism 9;

[0043] A vacuum pump 13 and an exhaust valve 14 are arranged on the vacuum tank 81. The vacuum pump 13 can evacuate the inside of the vacuum tank 81, and the exhaust valve 14 can discharge the excess gas in the vacuum tank 81;

[0044] The bottom of the temporary storage tank 2 is connected to a drain valve 15;

[0045] The carbon adding mechanism 7 comprises a carbon adding hopper 71, a cylinder 72 and a sealing plate 73. The carbon adding hopper 71 is fixedly mounted on the stirring tank 61, the cylinder 72 is fixedly mounted on the carbon adding hopper 71, the sealing plate 73 is fixedly mounted on the cylinder 72, and the sealing plate 73 blocks the carbon adding hopper 71. When activated carbon is added into the carbon adding hopper 71, the cylinder 72 descends to drive the sealing plate 73 to leave the inner wall of the carbon adding hopper 71, so that the activated carbon leaks into the stirring tank 61 from between the carbon adding hopper 71 and the sealing plate 73. After the carbon adding is completed, the cylinder 72 ascends to drive the sealing plate 73 to press against the inner wall of the carbon adding hopper 71, and the activated carbon stops entering the stirring tank 61.

[0046] The waste carbon collection mechanism 9 includes a scraper 91 and a discharge hopper 92. The scraper 91 is fixedly mounted on the decarburizer 82 and abuts against the decarburizer 82. The discharge hopper 92 is disposed on the side wall of the decarburizer 82 and is located below the scraper 91.

[0047] The discharge hopper 92 is hinged with an auxiliary hopper 16, and the angle of the auxiliary hopper 16 is adjusted to adjust the discharge angle of the waste carbon;

[0048] The scraper 91 includes a rotating shaft 911, a plurality of blades 912 and a driving motor 913. The driving motor 913 is fixedly connected to the decarburizer 82. The rotating shaft 911 is connected to the driving motor 913. The blades 912 are fixedly connected to the rotating shaft 911. The plurality of blades 912 are arranged in a circular array along the axis of the rotating shaft 911. The blades 912 are against the decarburizer 82. The driving motor 913 rotates to drive the rotating shaft 911 to rotate, thereby driving the blades 912 to rotate. The plurality of blades 912 alternately scrape the waste carbon on the decarburizer 82.

[0049] The drive motor 913 is connected to a reducer 17 to facilitate the control of the rotation speed of the blade 912;

[0050] A control cabinet 18 is disposed on the base 3 .

[0051] Working principle: First, the waste liquid is pumped from the electroplating tank into the photocatalytic advanced oxidation treatment machine for pretreatment, and then the waste liquid is pumped into the temporary storage tank 2 through the first connecting pipe 4, and the first mixer 5 in the temporary storage tank 2 continuously stirs the waste liquid. Secondly, activated carbon is added to the carbon adding hopper 71, and the cylinder 72 descends to drive the sealing plate 73 to leave the inner wall of the carbon adding hopper 71, so that the activated carbon leaks into the stirring tank 61 from between the carbon adding hopper 71 and the sealing plate 73. After the carbon addition is completed, the cylinder 72 rises to drive the sealing plate 73 to press against the inner wall of the carbon adding hopper 71, and the activated carbon stops entering the stirring tank 61. The waste liquid is put into the stirring tank 61 from the temporary storage tank 2, and the waste liquid and the activated carbon are fully mixed under the action of the second mixer 62. Then, the waste liquid mixed with the activated carbon is pumped into the vacuum tank 81, and the activated carbon removes the dirt in the waste liquid. After full adsorption, when the activated carbon is fully used, the waste liquid in the vacuum tank 81 is pumped into the decarbonizer 82 for decarbonization. The waste carbon diffuses to the surface of the decarbonizer 82 after being squeezed by the decarbonizer 82. The waste liquid after adsorption by the activated carbon reaches the pure use standard, especially the TOC index reaches the standard, and the electroplating liquid flows into the electroplating tank from the second connecting pipe 10 to realize uninterrupted circulation filtration of the electroplating liquid. Finally, the rotary driver 11 drives the decarbonizer 82 to rotate, and the driving motor 913 rotates to drive the rotating shaft 911 to rotate, thereby driving the blade 912 to rotate, and multiple blades 912 alternately scrape off the waste carbon on the decarbonizer 82, and the waste carbon scraped off by the scraper 91 falls on the discharge hopper 92, and the auxiliary hopper 16 in the discharge hopper 92 can be rotated to adjust the angle of the waste carbon falling, and the waste carbon falls into the waste vehicle 12 along the auxiliary hopper 16.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A carbon treatment system for an electroplating solution, characterized in that: Comprising: A temporary storage mechanism (1), which includes a temporary storage tank (2). The temporary storage tank (2) is fixedly installed on a base (3). A first connecting pipe (4) is provided on the temporary storage tank (2), and a first mixer (5) is arranged inside the temporary storage tank (2); A carbon addition and stirring mechanism (6), which includes a stirring tank (61) and a second mixer (62). The stirring tank (61) is communicated with the temporary storage tank (2), the second mixer (62) is arranged inside the stirring tank (61), and a carbon addition mechanism (7) is provided on the stirring tank (61); A mixing and filtering mechanism (8), which includes a vacuum tank (81) and a decarbonizer (82). The vacuum tank (81) is communicated with the stirring tank (61), the decarbonizer (82) is communicated with the vacuum tank (81). A waste carbon collection mechanism (9) is provided on the decarbonizer (82), a second connecting pipe (10) is provided on the decarbonizer (82), and a rotation drive (11) is provided on the decarbonizer (82); A waste material truck (12), which is located on one side of the decarbonizer (82), and the waste material truck (12) is located below the waste carbon collection mechanism (9); The waste carbon collection mechanism (9) includes a scraper (91) and a discharge hopper (92). The scraper (91) is fixedly installed on the decarbonizer (82), and the scraper (91) abuts against the decarbonizer (82). The discharge hopper (92) is arranged on the side wall of the decarbonizer (82), and the discharge hopper (92) is located below the scraper (91); A secondary hopper (16) is hinged inside the discharge hopper (92); The scraper (91) includes a rotating shaft (911), a plurality of blades (912) and a drive motor (913). The drive motor (913) is fixedly connected to the decarbonizer (82), the rotating shaft (911) is fixedly connected to the drive motor (913), the blades (912) are fixedly connected to the rotating shaft (911), and the plurality of blades (912) are arranged in an annular array along the axis of the rotating shaft (911), and the blades (912) abut against the decarbonizer (82).

2. The carbon treatment system for an electroplating solution according to claim 1, characterized in that, A vacuum pump (13) and an exhaust valve (14) are provided on the vacuum tank (81).

3. The carbon treatment system for an electroplating solution according to claim 1, characterized in that, A sewage discharge valve (15) is connected to the bottom of the temporary storage tank (2).

4. The carbon treatment system for an electroplating solution according to claim 1, characterized in that, The carbon addition mechanism (7) includes a carbon addition hopper (71), a cylinder (72) and a sealing plate (73). The carbon addition hopper (71) is fixedly installed on the stirring tank (61), the cylinder (72) is fixedly installed on the carbon addition hopper (71), the sealing plate (73) is fixedly installed on the cylinder (72), and the sealing plate (73) blocks the carbon addition hopper (71).

5. The carbon treatment system for an electroplating solution according to claim 1, characterized in that, A speed reducer (17) is connected to the drive motor (913).

6. The carbon treatment system for an electroplating solution according to claim 1, characterized in that, A control cabinet (18) is provided on the base (3).

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