Device for removing arsenic element in electronic grade hydrochloric acid

Abstract

The utility model discloses a device for removing arsenic element in electronic-grade hydrochloric acid, which comprises a treatment tank, a feed pipe for introducing an electronic-grade hydrochloric acid solution to be treated is arranged on one side of the top of the treatment tank, a discharge pipe is arranged at the bottom of the side surface of the treatment tank, and a treatment component capable of being freely telescopically adjusted is arranged at the top of the treatment tank. By utilizing the buoyancy characteristic of the floating ring, the height of the ultraviolet irradiator is automatically adjusted according to the height of a solution in the treatment tank, so that the complexity and inconvenience of manual adjustment are effectively avoided, the convenience and accuracy of operation are improved, the ultraviolet light is ensured to always irradiate an effective reaction area of the solution, and the service life of the ultraviolet irradiator is prolonged. Therefore, the treatment effect on the arsenic element in the electronic-grade hydrochloric acid is improved, meanwhile, the problem of uneven ultraviolet irradiation or insufficient irradiation caused by improper manual adjustment is solved through self-adaptive adjustment, and the stability of the treatment effect is further guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of electronic-grade hydrochloric acid treatment equipment, specifically relating to a device for removing arsenic from electronic-grade hydrochloric acid. Background Technology

[0002] In high-tech fields such as semiconductor manufacturing and photovoltaic industry, electronic-grade hydrochloric acid is a key raw material with extremely high purity requirements, especially regarding the strict control of harmful elements such as arsenic. The presence of arsenic can seriously affect the performance and reliability of electronic products, and even lead to product failure. Therefore, developing efficient and stable arsenic removal technology from electronic-grade hydrochloric acid has become an urgent need in the industry.

[0003] Currently, various technologies and devices exist for removing arsenic from electronic-grade hydrochloric acid. Among them, ultraviolet (UV) photocatalytic oxidation technology has attracted widespread attention due to its advantages such as mild reaction conditions, high processing efficiency, and no secondary pollution. However, existing UV photocatalytic oxidation devices still have some shortcomings in practical applications.

[0004] The patent application CN118384822A discloses an arsenic removal device based on ultraviolet photocatalytic oxidation. The device generates ultraviolet light through an ultraviolet irradiator to promote the oxidation and removal of arsenic. However, the height of the ultraviolet irradiator in this device needs to be manually adjusted to adapt to the processing requirements of different liquid levels. The operation process is not only cumbersome, but also increases the difficulty of operation and human error, affecting the arsenic removal effect. Utility Model Content

[0005] The purpose of this invention is to provide an electronic-grade hydrochloric acid arsenic removal device to solve the technical defects of existing arsenic removal devices that require manual height adjustment to adapt to different liquid levels when using ultraviolet light irradiation to promote the oxidation and removal of arsenic. This process is cumbersome and difficult, which affects the arsenic removal effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An arsenic removal device for electronic-grade hydrochloric acid includes a treatment tank. A feed pipe for introducing the electronic-grade hydrochloric acid solution to be treated is installed on one side of the top of the treatment tank. A discharge pipe is installed at the bottom of the side of the treatment tank. A freely retractable and adjustable treatment component is installed on the top of the treatment tank. An agitation component for stirring the electronic-grade hydrochloric acid solution is installed at the bottom of the treatment tank.

[0008] As a further embodiment of this utility model, the processing component includes a liftable lifting frame, which is located inside the processing tank, and an ultraviolet irradiator is installed at the bottom of the lifting frame.

[0009] As a further embodiment of this utility model, a floating ring supporting the lifting frame is fixedly connected to the bottom of the lifting frame.

[0010] As a further embodiment of this utility model, a positioning slide rod is fixedly connected to the top of the lifting frame, and the top of the positioning slide rod moves through the processing tank and extends to the outside of the processing tank where a limit stop is fixedly connected.

[0011] As a further embodiment of this utility model, a limiting component for limiting the positioning slide rod is installed on the top of the processing tank at the position corresponding to the positioning slide rod.

[0012] As a further embodiment of this utility model, the limiting component includes a limiting sleeve that is slidably disposed on the positioning slide rod, and both sides of the limiting sleeve are fixedly connected to the top of the processing tank through an L-shaped mounting bracket.

[0013] As a further embodiment of this utility model, a limiting ball is provided on the inner wall of the limiting sleeve, and the inside of the limiting sleeve is tactilely connected to the positioning slide rod through the limiting ball.

[0014] As a further embodiment of this utility model, the agitation assembly includes an agitation motor fixedly connected to the bottom of the processing tank, and agitation blades are fixedly connected to the output shaft of the agitation motor.

[0015] As a further embodiment of this invention, a sealing gasket is installed at the end of the processing tank and at the position corresponding to the output shaft of the agitator motor.

[0016] Compared with existing technologies, the arsenic removal device for electronic-grade hydrochloric acid provided by this utility model has the following beneficial effects: This utility model utilizes the buoyancy characteristics of the float ring to automatically adjust the height of the ultraviolet irradiator according to the solution height inside the treatment tank, effectively avoiding the tediousness and inconvenience of manual adjustment, improving the convenience and accuracy of operation, and ensuring that the ultraviolet light can always irradiate the effective reaction area of ​​the solution, thereby improving the treatment effect of arsenic in electronic-grade hydrochloric acid. At the same time, the adaptive adjustment also reduces the problem of uneven or insufficient ultraviolet light irradiation caused by improper manual adjustment, further ensuring the stability of the treatment effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the processing component in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the limiting component in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the agitation component in an embodiment of the present invention.

[0023] Figure label:

[0024] 1. Processing tank; 2. Feed pipe; 3. Discharge pipe; 4. Processing assembly; 5. Agitator assembly;

[0025] 401. Lifting frame; 4011. Ultraviolet irradiator;

[0026] 402. Float ring;

[0027] 403. Positioning slide bar; 404. Limiting block; 405. Limiting assembly;

[0028] 4051, Limiting sleeve; 4052, L-shaped mounting bracket; 4053, Limiting ball bearing;

[0029] 501. Agitator motor; 502. Agitator blades; 503. Sealing gasket. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0033] See appendix Figure 1-5 As shown in the figure, an embodiment of the present invention provides an arsenic removal device for electronic-grade hydrochloric acid, comprising a processing tank 1, a feed pipe 2 for introducing electronic-grade hydrochloric acid solution to be processed is installed on one side of the top of the processing tank 1, a discharge pipe 3 is installed at the bottom of the side of the processing tank 1, a processing component 4 that can be freely extended and adjusted is installed on the top of the processing tank 1, and an agitation component 5 for stirring the electronic-grade hydrochloric acid solution is installed at the bottom of the processing tank 1.

[0034] The processing component 4 includes a liftable lifting frame 401, which is located inside the processing tank 1. An ultraviolet irradiator 4011 is installed at the bottom of the lifting frame 401.

[0035] Among them, the ultraviolet irradiator 4011 can be a mercury lamp type ultraviolet irradiator.

[0036] In order to enable the lifting frame 401 to adaptively adjust according to the solution height inside the processing tank 1, a float ring 402 supporting the lifting frame 401 is fixedly connected to the bottom of the lifting frame 401.

[0037] The ultraviolet irradiator 4011 can irradiate the electronic-grade hydrochloric acid solution inside the treatment tank 1, thereby conveniently removing the arsenic element in the electronic-grade hydrochloric acid solution. At the same time, the float ring 402 adaptively adjusts according to the liquid level of the electronic-grade hydrochloric acid solution inside the treatment tank 1, thereby ensuring that the ultraviolet irradiator 4011 is always at a relative height to the electronic-grade hydrochloric acid solution.

[0038] In order to limit the lifting frame 401 and thus increase the stability of the lifting frame 401, a positioning slide rod 403 is fixedly connected to the top of the lifting frame 401, and the top of the positioning slide rod 403 moves through the processing tank 1 and extends to the outside of the processing tank 1 and is fixedly connected to a limit stop 404.

[0039] In order to limit the lifting frame 401 and thus increase the stability of the lifting frame 401, a limiting component 405 for limiting the positioning slide rod 403 is installed on the top of the treatment tank 1 at the position corresponding to the positioning slide rod 403. The limiting component 405 includes a limiting sleeve 4051 slidably disposed on the positioning slide rod 403. Both sides of the limiting sleeve 4051 are fixedly connected to the top of the treatment tank 1 through an L-shaped mounting bracket 4052.

[0040] In order to reduce the friction between the positioning slide rod 403 and the limiting slide sleeve 4051, thereby increasing the convenience and stability of the positioning slide rod 403 in raising and lowering, a limiting ball 4053 is provided on the inner wall of the limiting slide sleeve 4051, and the inside of the limiting slide sleeve 4051 is connected to the positioning slide rod 403 in a rolling manner through the limiting ball 4053.

[0041] In order to facilitate the stirring of the solution inside the treatment tank 1, so that the solution is evenly irradiated by the ultraviolet irradiator 4011, the stirring assembly 5 includes a stirring motor 501 fixedly connected to the bottom of the treatment tank 1, and stirring blades 502 fixedly connected to the output shaft of the stirring motor 501.

[0042] To increase the sealing between the agitator motor 501 and the processing tank 1 when the agitator motor 501 rotates, a sealing gasket 503 is installed at the end of the processing tank 1 and at the position corresponding to the output shaft of the agitator motor 501.

[0043] It is worth noting that, in order to ensure the normal operation of this device, the height of the electronic-grade hydrochloric acid solution added inside the treatment tank 1 must be higher than the height of the stirring blade 502.

[0044] The above-mentioned arsenic removal device for electronic-grade hydrochloric acid utilizes the buoyancy characteristics of the float 402 to automatically adjust the height of the ultraviolet irradiator 4011 according to the solution height inside the treatment tank 1. This effectively avoids the tediousness and inconvenience of manual adjustment, improves the convenience and accuracy of operation, and ensures that the ultraviolet light can always irradiate the effective reaction area of ​​the solution, thereby improving the treatment effect of arsenic in electronic-grade hydrochloric acid. At the same time, the adaptive adjustment also reduces the problem of uneven or insufficient ultraviolet light irradiation caused by improper manual adjustment, further ensuring the stability of the treatment effect.

[0045] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for removing arsenic from electronic-grade hydrochloric acid, comprising a processing tank (1), characterized in that: The processing tank (1) has a feed pipe (2) installed on one side of the top for introducing the electronic grade hydrochloric acid solution to be processed. The processing tank (1) has a discharge pipe (3) installed at the bottom of the side. The processing tank (1) has a processing component (4) that can be freely extended and adjusted on the top. The processing tank (1) has an agitation component (5) for stirring the electronic grade hydrochloric acid solution at the bottom. The processing component (4) includes a lifting frame (401) that can be raised and lowered. The bottom of the lifting frame (401) is fixedly connected to a float ring (402) that supports the lifting frame (401).

2. The arsenic removal device for electronic-grade hydrochloric acid according to claim 1, characterized in that: The lifting frame (401) is located inside the processing tank (1), and an ultraviolet irradiator (4011) is installed at the bottom of the lifting frame (401).

3. The arsenic removal device for electronic-grade hydrochloric acid according to claim 2, characterized in that: The top of the lifting frame (401) is fixedly connected to a positioning slide rod (403), and the top of the positioning slide rod (403) moves through the processing tank (1) and extends to the outside of the processing tank (1) and is fixedly connected to a limit stop (404).

4. The arsenic removal device for electronic-grade hydrochloric acid according to claim 3, characterized in that: A limiting component (405) for limiting the positioning slide (403) is installed on the top of the processing tank (1) at the position corresponding to the positioning slide (403).

5. The arsenic removal device for electronic-grade hydrochloric acid according to claim 4, characterized in that: The limiting component (405) includes a limiting sleeve (4051) slidably disposed on the positioning slide rod (403), and both sides of the limiting sleeve (4051) are fixedly connected to the top of the processing tank (1) through an L-shaped mounting bracket (4052).

6. The arsenic removal device for electronic-grade hydrochloric acid according to claim 5, characterized in that: The inner wall of the limiting sleeve (4051) is provided with limiting balls (4053), and the inside of the limiting sleeve (4051) is tactilely connected to the positioning slide rod (403) through the limiting balls (4053).

7. The arsenic removal device for electronic-grade hydrochloric acid according to claim 6, characterized in that: The agitation assembly (5) includes an agitation motor (501) fixedly connected to the bottom of the processing tank (1), and agitation blades (502) are fixedly connected to the output shaft of the agitation motor (501).

8. The arsenic removal device for electronic-grade hydrochloric acid according to claim 7, characterized in that: A sealing gasket (503) is installed at the end of the processing tank (1) and at the position corresponding to the output shaft of the agitator motor (501).

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