Reaction kettle for preparing electronic-grade sulfuric acid

By using electric push rods and water jet systems in the electronic-grade sulfuric acid preparation reactor, all-round cleaning without dead corners is achieved, the problem of inefficient manual cleaning is solved, and the cleaning efficiency and corrosion resistance of the kettle body are improved.

CN222196893UActive Publication Date: 2024-12-20LIANSHI NEW MATERIAL CORP LTD
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Patent Information

Application Number
CN202323422018.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-15
Publication Date
2024-12-20
Estimated Expiration
2033-12-15

AI Technical Summary

Technical Problem

The existing electronic-grade sulfuric acid preparation reactor uses manual treatment of the inner wall residue, which is inefficient and has dead corners to deal with, affecting the cleaning efficiency.

Method used

A reactor including an electric push rod, an electric rotating shaft, a circular inner ring and a water spray port is designed. The circular inner ring is driven to rotate through the electric rotating shaft, and the cleaning liquid is evenly sprayed on the water spray port and contacted with the inner wall with the outer convex scraping ring. , achieve all-round cleaning without blind spots.

Benefits of technology

The inner wall of the reactor is thoroughly cleaned, which reduces solid attachment residues, improves cleaning efficiency, avoids corrosion, and improves the operating efficiency of the kettle body.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an electronic grade sulfuric acid preparation reaction kettle in the field of reaction kettles, which comprises a reaction kettle body, the upper end of the reaction kettle body is fixedly connected with a kettle cover, the lower inner wall of the kettle cover is fixedly connected with a first electric push rod, the output end of the first electric push rod is fixedly connected with an electric rotating shaft, and the lower end of the electric rotating shaft is fixedly connected with a circular inner ring. The upper inner wall of the circular inner ring is fixedly connected with a second electric push rod, the output end of the second electric push rod is fixedly connected with a lower pressing ring rod, the inner side wall of the circular inner ring is provided with a plurality of inner side open grooves, the lower inner walls of the inner side open grooves are fixedly connected with elastic rods, and the upper ends of the elastic rods are fixedly connected with water injection nozzles. According to the scheme, cleaning liquid is uniformly sprayed into the inner wall of the reaction kettle body by utilizing the stretching water pipe externally connected with the water injection nozzle, and meanwhile, solid attachments on the inner wall of the reaction kettle body can be scraped by matching with contact friction between the outer convex scraping ring on the outer upper side of the circular inner ring and the inner side wall of the reaction kettle body.
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Description

Technical Field

[0001] The utility model relates to an electronic-grade sulfuric acid preparation reactor, in particular to an electronic-grade sulfuric acid preparation reactor applied in the field of reactors. Background Art

[0002] Electronic-grade sulfuric acid is a material specially used in the production of electronic components. Since electronic components are sensitive semiconductors, very high purity sulfuric acid is required. Therefore, the technical requirements for the preparation of electronic-grade sulfuric acid equipment are very stringent. The preparation of electronic-grade sulfuric acid needs to be carried out in a professional reactor. Since electronic-grade sulfur liquid is corrosive, the part remaining in the reactor needs to be cleaned up in time.

[0003] In order to solve the problem that the electronic-grade sulfur liquid is corrosive and the residue in the kettle needs to be cleaned in time, the electronic-grade sulfuric acid preparation reactor on the market adopts the method of manually processing the residue on the inner wall, which has a certain market share.

[0004] The electronic-grade sulfuric acid preparation reactor in the existing market adopts the method of manually processing the residue on the inner wall, which is not only time-consuming and labor-intensive, but also inefficient, and there is a problem of processing dead corners, which is not conducive to ensuring the cleaning efficiency of the electronic-grade sulfuric acid preparation reactor in the market. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the electronic-grade sulfuric acid preparation reactor in the existing market adopts the method of manually processing the residue on the inner wall, which is not only time-consuming and labor-intensive, but also inefficient, and there is the problem of processing dead corners, which is not conducive to ensuring the cleaning efficiency of the electronic-grade sulfuric acid preparation reactor in the market.

[0006] In order to solve the above problems, the utility model provides an electronic grade sulfuric acid preparation reactor, including a reactor body, the upper end of the reactor body is fixedly connected with a reactor cover, the lower inner wall of the reactor cover is fixedly connected with a first electric push rod, the output end of the first electric push rod is fixedly connected with an electric rotating shaft, the lower end of the electric rotating shaft is fixedly connected with a circular inner ring, the upper inner wall of the circular inner ring is fixedly connected with a second electric push rod, the output end of the second electric push rod is fixedly connected with a lower pressure ring rod, the inner side wall of the circular inner ring is provided with a plurality of inner grooves, the lower inner wall of the inner grooves is fixedly connected with an elastic rod, the upper end of the elastic rod is fixedly connected with a water spray outlet, and the plurality of water spray outlets are slidably connected to the corresponding inner grooves.

[0007] In the above-mentioned electronic-grade sulfuric acid preparation reactor, this solution uses an electric shaft to drive the circular inner ring to rotate, and uses a stretched water pipe connected to the water spray port to evenly spray the cleaning liquid onto the inner wall of the reactor body. At the same time, the convex scraping ring on the outer upper side of the circular inner ring contacts and rubs with the inner wall of the reactor body, so that the solid attachments on the inner wall of the reactor body can be scraped more thoroughly, reducing the residual attachment phenomenon.

[0008] As a further improvement of the present application, the water spray port extends out of the circular inner ring, and the circular inner ring extends into the reactor body.

[0009] As a further improvement of the present application, the water spray port cooperates with the inner side wall of the reactor body, and an outer convex scraper ring is fixedly connected to the outer side of the upper end of the reactor body.

[0010] As a further improvement of the present application, the outer convex scraper ring is in contact with the inner wall of the reactor body, and a stretching water pipe is fixedly connected to the right side of the upper end of the circular inner ring.

[0011] As another improvement of the present application, the stretching water pipe extends out of the kettle cover, and a pump is externally connected to the stretching water pipe.

[0012] As another improved supplement of the present application, both left and right ends of the reactor body are fixedly connected with feeding ports, and the lower end of the reactor body is fixedly connected with a pair of bases.

[0013] In summary, after the electronic grade sulfuric acid liquid is prepared by the reactor body, the circular inner ring is driven to move downward as a whole by the first electric push rod, and the circular inner ring is driven to rotate by the electric shaft, and the cleaning liquid is evenly sprayed onto the inner wall of the reactor body by the stretching water pipe connected to the water spray port, so that the inner wall of the reactor body is treated in all directions without dead ends. At the same time, the convex scraping ring on the upper outer side of the circular inner ring contacts and rubs with the inner wall of the reactor body, so that the solid attachments on the inner wall of the reactor body can be scraped more thoroughly, reducing the residual phenomenon of attachments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front cross-sectional view of the reactor body of the first embodiment of the present application;

[0015] Figure 2 This is a front cross-sectional view of a kettle cover according to a first embodiment of the present application;

[0016] Figure 3 For the first implementation of this application Figure 2 A partial enlarged view of point A in the middle.

[0017] Description of the numbers in the figure:

[0018] 1. Reactor body; 2. Feeding port; 3. Base; 4. Reactor cover; 5. Stretching water pipe; 6. First electric push rod; 7. Electric rotating shaft; 8. Second electric push rod; 9. Circular inner ring; 10. Outer convex scraper ring; 11. Lower pressure ring rod; 12. Inner groove; 13. Water spray port; 14. Elastic rod. DETAILED DESCRIPTION

[0019] An implementation of the present application is described in detail below with reference to the accompanying drawings.

[0020] The first implementation method:

[0021] Figure 1-3 It is shown that it includes a reactor body 1, the upper end of the reactor body 1 is fixedly connected with a reactor cover 4, the lower inner wall of the reactor cover 4 is fixedly connected with a first electric push rod 6, the output end of the first electric push rod 6 is fixedly connected with an electric rotating shaft 7, the lower end of the electric rotating shaft 7 is fixedly connected with a circular inner ring 9, the upper inner wall of the circular inner ring 9 is fixedly connected with a second electric push rod 8, the output end of the second electric push rod 8 is fixedly connected with a lower pressure ring rod 11, the inner wall of the circular inner ring 9 is provided with a plurality of inner grooves 12, the lower inner wall of the inner groove 12 is fixedly connected with an elastic rod 14, the upper end of the elastic rod 14 is fixedly connected with a water spray port 13, and the plurality of water spray ports 13 are slidably connected to the corresponding inner grooves 12.

[0022] Figure 1-3 It is shown that the water spray port 13 extends out of the circular inner ring 9, and the circular inner ring 9 extends into the reactor body 1. The water spray port 13 cooperates with the inner wall of the reactor body 1. The outer side of the upper end of the reactor body 1 is fixedly connected with an outer convex scraper ring 10, and the outer convex scraper ring 10 contacts the inner wall of the reactor body 1. The right side of the upper end of the circular inner ring 9 is fixedly connected with a stretching water pipe 5, and the stretching water pipe 5 extends out of the reactor cover 4. The stretching water pipe 5 is externally connected to a pump. The left and right ends of the reactor body 1 are fixedly connected with a feed port 2, and the lower end of the reactor body 1 is fixedly connected with a pair of bases 3.

[0023] Figure 1-3 It is shown that after the electronic grade sulfuric acid liquid is prepared by the reactor body 1, the circular inner ring 9 is driven to move downward as a whole by the first electric push rod 6, and the circular inner ring 9 is driven to rotate by the electric shaft 7, and at the same time, the second electric push rod 8 presses down the ring pressing rod 11, so that the water spray port 13 moves out of the circular inner ring 9 and is close to the inner wall of the reactor body 1, and the stretching water pipe 5 connected to the water spray port 13 is used to spray the cleaning liquid evenly onto the inner wall of the reactor body 1, so that the inner wall of the reactor body 1 is treated in all directions without dead angles, and at the same time, the circular inner ring 13 is used to clean the inner wall of the reactor body 1. The convex scraping ring 10 on the upper outer side of the ring 9 contacts and rubs with the inner wall of the reactor body 1, so that the solid attachments on the inner wall of the reactor body 1 can be scraped more thoroughly, reducing the residual attachments and avoiding the electronic grade sulfuric acid from remaining on the inner wall of the reactor body 1 for a long time and causing corrosion to it, which is beneficial to ensuring the operating efficiency of the reactor body 1. When the water spray port 13 is not in use, the lower pressure ring rod 11 is retracted, and then the water spray port 13 rebounds to the circular inner ring 9 for temporary storage, which is beneficial to ensuring the smoothness of the output end of the water spray port 13.

[0024] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A reaction kettle for preparing electronic grade sulfuric acid, characterized in that: The invention comprises a reactor body (1), wherein the upper end of the reactor body (1) is fixedly connected to a reactor cover (4), the lower inner wall of the reactor cover (4) is fixedly connected to a first electric push rod (6), the output end of the first electric push rod (6) is fixedly connected to an electric rotating shaft (7), the lower end of the electric rotating shaft (7) is fixedly connected to a circular inner ring (9), the upper inner wall of the circular inner ring (9) is fixedly connected to a second electric push rod (8), the output end of the second electric push rod (8) is fixedly connected to a lower pressure ring rod (11), the inner wall of the circular inner ring (9) is provided with a plurality of inner grooves (12), the lower inner wall of the inner grooves (12) is fixedly connected to an elastic rod (14), the upper end of the elastic rod (14) is fixedly connected to a water spraying port (13), and the plurality of water spraying ports (13) are slidably connected to the corresponding inner grooves (12).

2. The electronic grade sulfuric acid preparation reactor according to claim 1, characterized in that: The water spray port (13) extends out of the circular inner ring (9), and the circular inner ring (9) extends into the reactor body (1).

3. The electronic grade sulfuric acid preparation reactor according to claim 1, characterized in that: The water spray port (13) cooperates with the inner wall of the reactor body (1), and an outer convex scraper ring (10) is fixedly connected to the outer side of the upper end of the reactor body (1).

4. The electronic grade sulfuric acid preparation reactor according to claim 3, characterized in that: The outer convex scraper ring (10) contacts the inner wall of the reactor body (1), and a stretching water pipe (5) is fixedly connected to the right side of the upper end of the circular inner ring (9).

5. The electronic grade sulfuric acid preparation reactor according to claim 4, characterized in that: The stretching water pipe (5) extends out of the kettle cover (4), and the stretching water pipe (5) is externally connected to a pump.

6. The electronic grade sulfuric acid preparation reactor according to claim 1, characterized in that: The left and right ends of the reactor body (1) are both fixedly connected with material delivery ports (2), and the lower end of the reactor body (1) is fixedly connected with a pair of bases (3).