A neutralization reactor for treating copper-containing etching solution waste liquid

Abstract

This utility model discloses a neutralization reactor for treating copper-containing etching solution waste liquid, including a reactor shell with a cover bolted to the top. Inside the reactor shell is a stirring rod for agitating the waste liquid, and inside the reactor shell is a moving rod for driving the stirring rod up and down. The moving rod is driven by a rotating disc, and the moving rod and stirring rod are synchronously driven by a motor. Compared with the prior art, the advantages of this utility model are that by driving the rotating disc and stirring rod to rotate by a motor, and simultaneously using gear transmission to drive the stirring rod up and down, the stirring range is expanded, resulting in more uniform mixing of the waste liquid and the neutralization liquid, accelerating the neutralization reaction rate, and ensuring that all areas of the waste liquid can fully react. This effectively solves the problems of uneven mixing and slow reaction in traditional reactors, significantly reduces the neutralization treatment time of copper-containing etching solution waste liquid, and improves the overall treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of copper etching solution waste liquid treatment technology, specifically a neutralization reaction vessel for treating copper etching solution waste liquid. Background Technology

[0002] With the rapid development of the electronics industry, the demand for etching solutions is increasing, resulting in a growing amount of waste etching solutions. After the etching process is completed, the etching solution becomes waste etching solution, most of which is alkaline or acidic. Neutralization is required for recycling this waste etching solution.

[0003] The application document for a neutralization reactor for treating copper-containing etching solution waste liquid, with application number 202022591552.8, describes a reactor with internal flushing pipes connected to a first feed pipe and a second feed pipe, with their outlets facing each other. It also describes flushing nozzles located at the outlets of each flushing pipe. This design allows for initial mixing of the acid and alkali solutions during feeding, and improves mixing efficiency through fluid flushing. A reversing mechanism outside the flushing nozzles changes the flow direction of the mixed fluid after flushing, further improving mixing efficiency and preventing splashing fluid from impacting the reactor body and lid, thus extending the equipment's lifespan. Finally, a mixing mechanism at the bottom of the reversing mechanism allows for multiple flushing and reversing mixing of the initially mixed acid and alkali fluids, increasing the neutralization reaction rate.

[0004] While the aforementioned applications meet user needs to a certain extent, certain shortcomings remain during use. Specifically, the use of a single stirring method results in limited stirring range, uneven mixing of the neutralizing liquid and waste liquid, and low reaction efficiency, leading to incomplete neutralization, prolonged processing time, and impacting the waste liquid treatment effect and efficiency. Furthermore, traditional reactors typically add neutralizing liquid by surface pouring, making it difficult to directly introduce it into the waste liquid, further reducing the neutralization reaction rate. This invention designs a neutralization reactor for treating copper-containing etching solution waste liquid to solve these problems. Utility Model Content

[0005] This invention provides a neutralization reactor for treating copper-containing etching solution waste liquid, which effectively solves the problems mentioned in the background art, such as limited stirring range, uneven mixing of neutralizing liquid and waste liquid, and low reaction efficiency caused by using a single stirring method. These problems result in incomplete neutralization reaction, long treatment time, and affect the treatment effect and efficiency of the waste liquid. In addition, the traditional method of adding neutralizing liquid to the reactor is mostly surface pouring, which makes it difficult to directly introduce it into the interior of the waste liquid, further reducing the neutralization reaction rate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a neutralization reactor for treating copper-containing etching solution waste liquid, comprising a reactor shell, a shell cover connected to the top of the reactor shell by bolts, a stirring rod for stirring the waste liquid inside the reactor shell, and a moving rod for driving the stirring rod to move up and down inside the reactor shell, the moving rod being driven by a rotating disk, and the moving rod and the stirring rod being driven synchronously by a motor.

[0007] A neutralization reactor for treating copper-containing etching solution waste liquid, preferably, the top of the reactor shell is bolted to a shell cover, characterized in that: a motor is installed on the top of the shell cover by screws, the output shaft of the motor is fixedly connected to a first bevel gear, a second bevel gear is rotatably connected to the middle of the top of the shell cover, a rotating cylinder is fixedly installed inside the second bevel gear, and stirring rods are uniformly fixedly sleeved on the outside of the rotating cylinder.

[0008] A neutralization reactor for treating copper-containing etching solution waste liquid, preferably, has a third bevel gear rotatably connected to one end of the top of the shell cover, a drive shaft fixedly connected to one end of the third bevel gear, a rotating disk mounted on one end of the drive shaft by screws, a connecting shaft rotatably connected to one end of the rotating disk, a moving rod rotatably connected to one end of the connecting shaft, a T-ring fixedly connected to the outside of the stirring rod, a drive ring rotatably sleeved on the outside of the T-ring, and the drive ring fixedly connected to the moving rod by a connecting post.

[0009] A neutralization reactor for treating copper-containing etching solution waste liquid, preferably, has a closed cylinder rotatably connected inside the rotating cylinder, and the closed cylinder and the outer side of the rotating cylinder are evenly provided with discharge holes.

[0010] A neutralization reactor for treating copper-containing etching solution waste liquid, preferably, is provided in which two adjacent stirring rods are connected by a plurality of diamond-shaped rods.

[0011] A neutralization reactor for treating copper-containing etching solution waste liquid, preferably wherein the first bevel gear is meshed with the second bevel gear, the second bevel gear is meshed with the third bevel gear, and the motor input terminal is electrically connected to the external power supply output terminal.

[0012] A neutralization reactor for treating copper-containing etching solution waste liquid, preferably, has a corresponding groove at the position of the moving rod on the shell cover, and the moving rod is mechanically sealed to the corresponding groove.

[0013] A neutralization reactor for treating copper-containing etching solution waste liquid, preferably wherein the outer side of the closed cylinder is in contact with the inner wall of the rotating cylinder, and the top two ends of the rotating cylinder are provided with threaded grooves with an included angle of 45°.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model has a scientific and reasonable structure and is safe and convenient to use: The rotating cylinder and stirring rod are driven to rotate by a motor, and the stirring rod is moved up and down by gear transmission, which expands the stirring range, makes the waste liquid and neutralizing liquid mix more evenly, and accelerates the neutralization reaction rate. The neutralizing liquid can be directly introduced into the depth of the waste liquid through the inside of the rotating cylinder, avoiding the mixing delay problem caused by traditional surface addition, and further improving the neutralization reaction efficiency. The stirring rods are connected by diamond rods, and the linkage structure of T-shaped ring and driving ring makes the stirring action more complex and the coverage wider, ensuring that all areas of the waste liquid can react fully. This effectively solves the problems of uneven mixing and slow reaction in traditional reaction kettles, significantly reduces the neutralization treatment time of copper etching solution waste liquid, and improves the overall treatment efficiency. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the motor mounting structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the movable pole installation structure of this utility model;

[0020] Figure 4 This is the utility model Figure 3 Enlarged structural diagram of region A in the middle;

[0021] Labels in the diagram: 1. Reactor shell; 2. Shell cover; 3. Motor; 4. First bevel gear; 5. Second bevel gear; 6. Third bevel gear; 7. Drive shaft; 8. Rotating disc; 9. Connecting shaft; 10. Moving rod; 11. Rotating cylinder; 12. Stirring rod; 13. T-ring; 14. Drive ring; 15. Connecting column; 16. Sealing cylinder; 17. Fixing screw; 18. Discharge hole; 19. Diamond rod. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: Figure 1-4As shown, this utility model provides a technical solution: a neutralization reactor for treating copper-containing etching solution waste liquid, comprising a reactor shell 1, a shell cover 2 bolted to the top of the reactor shell 1, a motor 3 mounted on the top of the shell cover 2 by screws, a first bevel gear 4 fixedly connected to the output shaft of the motor 3, a second bevel gear 5 rotatably connected to the middle of the top of the shell cover 2, a third bevel gear 6 rotatably connected to one end of the top of the shell cover 2, a drive shaft 7 fixedly connected to one end of the third bevel gear 6, a rotating disk 8 mounted on one end of the drive shaft 7 by screws, and a connecting rod rotatably connected to one end of the rotating disk 8. A connecting shaft 9 is rotatably connected to one end of a moving rod 10. A rotating cylinder 11 is fixedly installed inside the second bevel gear 5. A stirring rod 12 is uniformly fixedly sleeved on the outside of the rotating cylinder 11. A T-ring 13 is fixedly connected to the outside of the stirring rod 12. A driving ring 14 is rotatably sleeved on the outside of the T-ring 13. The driving ring 14 is fixedly connected to the moving rod 10 through a connecting column 15. A closed cylinder 16 is rotatably connected inside the rotating cylinder 11. Discharge holes 18 are uniformly opened on the outside of the closed cylinder 16 and the rotating cylinder 11. Two adjacent stirring rods 12 are connected by multiple diamond-shaped rods 19.

[0024] The first bevel gear 4 meshes with the second bevel gear 5, and the second bevel gear 5 meshes with the third bevel gear 6. The input end of the motor 3 is electrically connected to the output end of the external power supply, which facilitates the starting of the motor 3. The rotation of the output shaft of the motor 3 enables the second bevel gear 5 and the third bevel gear 6 to rotate, thereby driving the shaft 7 and the rotating cylinder 11 to rotate.

[0025] The cover 2 has a corresponding groove at the position of the moving rod 10. The moving rod 10 is mechanically sealed to the corresponding groove, which facilitates the movement of the moving rod 10 and enhances the sealing between the moving rod 10 and the cover 2.

[0026] The outer side of the closed cylinder 16 is in contact with the inner wall of the rotating cylinder 11. The top two ends of the rotating cylinder 11 are provided with threaded grooves with an included angle of 45°. The fixing screw 17 is connected to the threaded grooves by threads, which makes it easy to fix the closed cylinder 16 and to fix the closed cylinder 16 in different positions, so as to close the discharge hole 18 on the outer side of the rotating cylinder 11.

[0027] Personnel add waste liquid into the reactor shell 1 through the feed cylinder, and rotate the closed cylinder 16 so that the discharge hole 18 on the outside of the closed cylinder 16 corresponds to the discharge hole 18 on the rotating cylinder 11. Then, personnel fix the closed cylinder 16 with the fixing screw 17.

[0028] When motor 3 is turned on, the output shaft of motor 3 rotates, driving the first bevel gear 4 to rotate. The first bevel gear 4 and the second bevel gear 5 rotate, which in turn drives the rotating cylinder 11 to rotate, which in turn drives the stirring rod 12 to rotate, thus stirring the waste liquid inside the reactor shell 1. During the stirring process, neutralizing liquid is added through the rotating cylinder 11, allowing the neutralizing liquid to directly enter the waste liquid, accelerating the fusion of the waste liquid and the neutralizing liquid, thereby improving the neutralization reaction efficiency. The stirring process during neutralization further improves the neutralization efficiency. During this process, the meshing connection between the second bevel gear 5 and the third bevel gear 6 drives the drive shaft 7 to rotate, which in turn drives the rotating disk 8 to rotate. When the rotating disk 8 rotates, it drives the connecting shaft 9 to rotate and moves the moving rod 10, thus moving the connecting column 15. The movement of the connecting column 15 drives the drive ring 14 to rotate, which in turn moves multiple stirring rods 12 up and down, expanding the stirring range of the waste liquid, improving the neutralization effect and efficiency, and reducing the neutralization time.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A neutralization reactor for treating copper-containing etching solution waste liquid, comprising a reactor shell (1), a shell cover (2) is connected to the top of the reactor shell (1) by bolts, characterized in that: The reactor shell (1) is provided with a stirring rod (12) for stirring the waste liquid. The reactor shell (1) is also provided with a moving rod (10) for driving the stirring rod (12) to move up and down. The moving rod (10) is driven to rotate by a rotating disk (8). The moving rod (10) and the stirring rod (12) are driven synchronously by a motor (3).

2. The neutralization reactor for treating copper-containing etching solution waste liquid according to claim 1, characterized in that, The top of the reactor shell (1) is connected to a shell cover (2) by bolts. The shell cover (2) is characterized in that a motor (3) is installed on the top of the shell cover (2) by screws. The output shaft of the motor (3) is fixedly connected to a first bevel gear (4). A second bevel gear (5) is rotatably connected to the middle of the top of the shell cover (2). A rotating cylinder (11) is fixedly installed inside the second bevel gear (5). A stirring rod (12) is uniformly fixedly sleeved on the outside of the rotating cylinder (11).

3. The neutralization reactor for treating copper-containing etching solution waste according to claim 2, characterized in that, The top end of the shell cover (2) is rotatably connected to a third bevel gear (6), and the third bevel gear (6) is fixedly connected to a drive shaft (7). The drive shaft (7) is mounted with a rotating disk (8) by screws at one end. The rotating disk (8) is rotatably connected to a connecting shaft (9), and the connecting shaft (9) is rotatably connected to a moving rod (10). The stirring rod (12) is fixedly connected to a T-ring (13) on the outside. The T-ring (13) is rotatably sleeved with a drive ring (14) on the outside. The drive ring (14) is fixedly connected to the moving rod (10) through a connecting post (15).

4. The neutralization reactor for treating copper-containing etching solution waste according to claim 2, characterized in that, The rotating cylinder (11) is rotatably connected to a closed cylinder (16), and the closed cylinder (16) and the rotating cylinder (11) are evenly provided with discharge holes (18).

5. The neutralization reactor for treating copper-containing etching solution waste liquid according to claim 1, characterized in that, Two adjacent stirring rods (12) are connected by a plurality of diamond-shaped rods (19).

6. The neutralization reactor for treating copper-containing etching solution waste liquid according to claim 3, characterized in that, The first bevel gear (4) is meshed with the second bevel gear (5), the second bevel gear (5) is meshed with the third bevel gear (6), and the input end of the motor (3) is electrically connected to the output end of the external power supply.

7. The neutralization reactor for treating copper-containing etching solution waste liquid according to claim 3, characterized in that, The cover (2) has a corresponding groove at the position of the moving rod (10), and the moving rod (10) is mechanically sealed to the corresponding groove.

8. The neutralization reactor for treating copper-containing etching solution waste liquid according to claim 4, characterized in that, The outer side of the closed cylinder (16) is in contact with the inner wall of the rotating cylinder (11). The top two ends of the rotating cylinder (11) are provided with threaded grooves, and the included angle between the two threaded grooves is 45°.

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