Acid gas mist collecting cover

By designing an acid mist collection hood, and utilizing the cavity formed by the plate and baffle combined with an exhaust fan, the problem of sulfuric acid mist emission in the production of electrolytic copper foil was solved, achieving better sealing effect and environmental protection.

CN224208764UActive Publication Date: 2026-05-08JIANGXI HUAXIN MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI HUAXIN MATERIALS CO LTD
Filing Date
2025-04-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In the existing technology, sulfuric acid mist emission during the electrolytic copper foil production process has a negative impact on production and the environment. The sealing effect is poor and cannot effectively prevent the emission of acid mist.

Method used

Design an acid mist collection hood, which forms a cavity by enclosing a first plate, a second plate, and a baffle. The baffle is connected to the anode tank gap, and the acid mist is extracted by a fan. Reinforcing plates and protective plates are added to improve the structural stability.

Benefits of technology

It effectively reduces the negative impact of acid mist emission on the production environment and worker health, improves the stability and sealing effect of the collection hood, protects the anode tank and cathode roller position, and reduces the formation of acid mist points.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an acid mist collecting cover which comprises a first plate body, a second plate body and a baffle, the baffle is arranged along the outer periphery of the first plate body and is perpendicular to the first plate body, and the end, back on to the first plate body, of the baffle is connected with the second plate body; the baffle is provided with an opening, and the second plate body is provided with an exhaust opening matched with the exhaust pipe. And connecting plates are arranged at the ends, close to the opening, of the first plate body and the second plate body. A cavity is defined by the first plate body, the second plate body and the baffle, a closed environment can be formed at a target position, dissipation of acid mist is avoided, a reinforcing plate is arranged in the cavity, the durability of the collecting cover is improved, during working, an exhaust fan extracts the acid mist gathered in the cavity, and the acid mist is prevented from being dissipated. The method plays an important role in reducing formation of acid mist points during foil generation and improving the safety degree of the working environment of workers; and meanwhile, the collecting cover can play a role in shielding and protecting the positions of the anode groove and the cathode roller.
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Description

Technical Field

[0001] This utility model relates to the field of acid mist collection technology, specifically to an acid mist collection hood. Background Technology

[0002] Electrolytic copper foil is an important material in the manufacture of copper-clad laminates (CCLs), printed circuit boards (PCBs), and lithium-ion batteries. In today's rapidly developing electronics and information industry, electrolytic copper foil is referred to as the "neural network" for signal and power transmission and communication in electronic products.

[0003] Electrolytic copper foil is formed by depositing copper ions from an electrolyte onto a smooth, rotating titanium plate circular cathode roller. Since copper sulfate solution is used as the electrolyte in copper foil production, a large amount of acidic sulfuric acid mist is generated during the production process. If left untreated, this will affect the quality of the copper foil, causing defects such as acid mist spots, and will also pollute the environment and harm human health. According to environmental regulations, it must be treated to meet emission standards. Therefore, an acid mist treatment process is added during the foil production process.

[0004] The prerequisite for acid mist treatment is the collection of acid mist. Currently, during copper foil production, acid mist usually escapes from the gaps near the opening of the anode tank. By setting up extraction pipes around the gaps, the acid mist generated during the production process can be extracted. However, this method of acid mist collection does not achieve a sealing effect and can only remove part of the acid mist. If the sealing effect is not good, it cannot prevent the escape of acid mist. Mist gas will still escape from the gaps at the edge of the anode tank and spread into the air, causing negative impacts on production and the environment. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an acid mist collection hood, which aims to solve the problem of the negative impact of sulfuric acid mist emission on production and the environment during the electrolytic copper foil production process.

[0006] To achieve the above objectives, the embodiments of this utility model are implemented through the following technical solution: a first plate, a second plate, and a baffle. The baffle is disposed along the outer periphery of the first plate and is perpendicular to the first plate. The end of the baffle facing away from the first plate is connected to the second plate. The first plate, the second plate, and the baffle enclose a cavity. An opening communicating with the cavity is provided on the baffle. The opening is adapted to the gap at one end of the anode tank opening to allow the escaping acid mist to enter the cavity. An exhaust port adapted to an exhaust pipe is provided on the second plate. The exhaust vent communicates with the cavity and is used to connect an exhaust fan. A reinforcing plate is fixedly installed on the side of the first plate facing the second plate, and the end of the reinforcing plate facing away from the first plate is fixedly connected to the second plate. A first connecting plate is installed on the side of the first plate facing away from the second plate, and a second connecting plate is installed on the side of the second plate facing away from the first plate. The first connecting plate is located at the end of the first plate near the opening, and the second connecting plate is located at the end of the second plate near the opening. Bolt holes are provided on both the first connecting plate and the second connecting plate.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: the first plate, the second plate, and the baffle are interconnected to form a cavity. By connecting the opening with the gap at one end of the anode tank opening, a closed environment is formed at the gap at one end of the anode tank opening. The acid mist generated during the electrolytic copper foil production process is dispersed into the cavity and extracted by the exhaust fan. Compared with conventional acid mist cleaning methods, this can effectively reduce the negative impact of acid mist dispersion on the production environment and workers' health. At the same time, the collection cover can shield and protect the positions of the anode tank and the cathode roller. By setting the reinforcing plate in the cavity, the overall strength of the collection cover is further improved, making the collection cover stable and durable. The collection cover is fixed with bolts to prevent the collection cover from shaking or shifting.

[0008] Furthermore, the second plate has a connection port that is adapted to the components at the edge of the anode groove opening.

[0009] Furthermore, a first protective plate is provided on the side of the first plate facing away from the second plate, and a second protective plate is provided on the side of the second plate facing away from the first plate.

[0010] Furthermore, one end of the first protection plate is fixedly connected to the first connecting plate, and one end of the second protection plate is fixedly connected to the second connecting plate.

[0011] Furthermore, the reinforcing plate includes a transverse reinforcing plate, and several longitudinal reinforcing plates are connected to both opposite sides of the transverse reinforcing plate.

[0012] Furthermore, the longitudinal reinforcing plates located on both sides of the transverse reinforcing plate are arranged in an alternating manner.

[0013] Furthermore, the transverse reinforcing plate is provided with a number of air vents that penetrate the transverse reinforcing plate at even intervals, and the longitudinal reinforcing plates are provided with through holes that penetrate the longitudinal reinforcing plates.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the acid mist collection hood in an embodiment of the present invention from a first-view perspective.

[0017] Figure 2 This is a schematic diagram of the acid mist collection hood in an embodiment of the present invention from a second perspective.

[0018] Figure 3 This is a schematic diagram of the acid mist collection hood in an embodiment of the present invention from a third-person perspective.

[0019] Figure 4 This is a schematic diagram of the acid mist collection hood in an embodiment of the present invention from a fourth-angle perspective.

[0020] Explanation of key component symbols in the diagram:

[0021] 10. Collection cover; 11. Exhaust vent; 12. Connecting plate; 13. First plate; 14. Second plate; 15. Baffle; 16. Connecting interface; 20. Protective plate; 30. Reinforcing plate; 31. Horizontal reinforcing plate; 32. Vertical reinforcing plate; 33. Air outlet; 34. Through hole. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0024] In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0025] Please see Figures 1 to 4This utility model provides an acid mist collection hood, comprising a first plate 13, a second plate 14, and a baffle 15. The baffle 15 is fixedly disposed along the outer edge of the first plate 13 and is perpendicular to the first plate 13. One end of the baffle 15 facing away from the first plate 13 is connected to the second plate 14. The first plate 13 and the second plate 14 can form a cavity with the baffle 15. The baffle 15 has an opening communicating with the cavity, which is adapted to the gap at one end of the anode tank opening, forming a closed environment at the gap at one end of the anode tank opening, thereby effectively collecting the escaping acid mist and preventing its escape. The second plate 14 has an exhaust port 11 matching the exhaust pipe, which communicates with the cavity. The number of exhaust ports 11 is at least one, and the exhaust port... Position 11 is set at the location where acid mist is generated or at a high concentration. A reinforcing plate 30 is fixedly installed on the side of the first plate 13 facing the second plate 14. The end of the reinforcing plate 30 facing away from the first plate 13 is fixedly connected to the second plate 14, further improving the overall strength of the collection hood 10 and making the collection hood 10 stable and durable. A first connecting plate is provided on the side of the first plate 13 facing away from the second plate 14, and a second connecting plate is provided on the side of the second plate 14 facing away from the first plate 13. The first connecting plate is located at the end of the first plate 13 near the opening, and the second connecting plate is located at the end of the second plate 14 near the opening. Both the first connecting plate and the second connecting plate are provided with bolt holes so that the first plate 13 and the second plate 14 can be fixed with bolts during use to prevent the collection hood from shaking or shifting. When electrolyzing copper foil, the exhaust port 11 is connected to the exhaust fan. The exhaust fan draws out the acid mist that has escaped into the cavity through the exhaust port 11. This plays an important role in reducing the formation of acid mist points during foil production and improving the safety of the workers' working environment. At the same time, the collection cover 10 can shield and protect the positions of the anode tank and the cathode roller.

[0026] The collection cover 10 serves as the main structure and can be semi-circular in shape. The second plate 14 has a connection port 16, which is adapted to the components at the edge of the anode tank opening to ensure that the opening fits snugly against the gap at one end of the anode tank opening.

[0027] A first protective plate is provided on the side of the first plate 13 facing away from the second plate 14, and a second protective plate is provided on the side of the second plate 14 facing away from the first plate 13. The first protective plate is perpendicular to the first plate 13, and the second protective plate is perpendicular to the second plate 14. By providing the first protective plate, the strength of the first plate 13 is enhanced, and by providing the second protective plate, the strength of the second plate 14 is enhanced. One end of the first protective plate is fixedly connected to the first connecting plate, and one end of the second protective plate is fixedly connected to the second connecting plate, thereby ensuring the strength of the connecting plate 12.

[0028] The reinforcing plate 30 includes a transverse reinforcing plate 31 and several longitudinal reinforcing plates 32, with the transverse reinforcing plates 31 and the longitudinal reinforcing plates 32 arranged perpendicularly. The longitudinal reinforcing plates 32 are staggered on opposite sides of the transverse reinforcing plate 31, and one end of each longitudinal reinforcing plate 32 is fixedly connected to the transverse reinforcing plate 31. By setting the transverse reinforcing plates 31 and the longitudinal reinforcing plates 32 to form an intersecting grid structure, the overall strength is effectively improved, making the device structure stable and durable. Several air vents 33 are evenly spaced on the transverse reinforcing plate 31, and through holes 34 are provided on the longitudinal reinforcing plates 32. The air vents 33 and the through holes 34 are connected to form a channel, making the space between the grid structure plates integrated and expanding the acid mist containing volume of the collection hood 10. This device has a simple structure, is very convenient to disassemble and install, and is easy to replace; it can effectively collect sulfuric acid mist generated during the electrolytic copper foil production process, preventing the escaped sulfuric acid mist from causing negative impacts on production and the environment. At the same time, the collection cover can also shield and protect the positions of the anode tank and the cathode roller.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An acid mist collection hood, characterized in that, include: A first plate, a second plate, and a baffle are provided. The baffle is disposed along the outer periphery of the first plate and is perpendicular to the first plate. The end of the baffle facing away from the first plate is connected to the second plate. The first plate, the second plate, and the baffle form a cavity. An opening communicating with the cavity is provided on the baffle. The opening is adapted to the gap at one end of the anode tank opening to allow the escaping acid mist to enter the cavity. An exhaust port adapted to an exhaust pipe is provided on the second plate. The exhaust port is communicating with the cavity and is used to connect an exhaust fan. A reinforcing plate is fixedly disposed on the side of the first plate facing the second plate. The end of the reinforcing plate facing away from the first plate is fixedly connected to the second plate. A first connecting plate is disposed on the side of the first plate facing away from the second plate, and a second connecting plate is disposed on the side of the second plate facing away from the first plate. The first connecting plate is located at the end of the first plate near the opening, and the second connecting plate is located at the end of the second plate near the opening. Bolt holes are provided on both the first connecting plate and the second connecting plate.

2. The acid mist collection hood according to claim 1, characterized in that, The second plate has a connection port that is compatible with the components at the edge of the anode tank opening.

3. The acid mist collection hood according to claim 1, characterized in that, A first protective plate is provided on the side of the first plate that faces away from the second plate, and a second protective plate is provided on the side of the second plate that faces away from the first plate.

4. The acid mist collection hood according to claim 3, characterized in that, One end of the first protection plate is fixedly connected to the first connecting plate, and one end of the second protection plate is fixedly connected to the second connecting plate.

5. An acid mist collection hood according to claim 1, characterized in that, The reinforcing plate includes a transverse reinforcing plate, and several longitudinal reinforcing plates are connected to both opposite sides of the transverse reinforcing plate.

6. An acid mist collection hood according to claim 5, characterized in that, The longitudinal reinforcing plates located on both sides of the transverse reinforcing plate are arranged alternately.

7. An acid mist collection hood according to claim 5, characterized in that, The transverse reinforcing plate is provided with a plurality of air vents that penetrate the transverse reinforcing plate at even intervals, and the longitudinal reinforcing plate is provided with through holes that penetrate the longitudinal reinforcing plate.