Photocatalysis device for purifying industrial wastewater

Abstract

The utility model relates to the field of industrial wastewater purification, and discloses a photocatalytic device for purifying industrial wastewater, which comprises a catalytic converter body, and a first catalytic layer, a second catalytic layer, a third catalytic layer, a fourth catalytic layer and a fifth catalytic layer are respectively arranged in the catalytic converter body from top to bottom. The catalytic layers are arranged in a staggered and inclined mode from top to bottom, a sealing piece is fixedly connected between each catalytic layer and the side wall of the catalytic converter body, each catalytic layer is composed of a fixing frame and a catalytic plate, and the fixing frame is fixed to one side of the sealing piece. According to the photocatalytic device for purifying the industrial wastewater, the first catalytic layer, the second catalytic layer, the third catalytic layer, the fourth catalytic layer and the fifth catalytic layer are arranged, each catalytic layer internally comprises a fixing frame and a catalytic plate, the catalytic plates do not need to be dismounted by external force in the dismounting process, and the problems that a traditional device is complex in structure and difficult to replace are solved; the problem of inconvenient disassembly and maintenance is solved.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater purification technology, specifically a photocatalytic device for purifying industrial wastewater. Background Technology

[0002] Photocatalysis technology primarily relies on photocatalytic materials (such as TiO2) to generate free radicals under ultraviolet or visible light irradiation, thereby oxidizing and decomposing organic pollutants in wastewater into harmless small molecules, achieving efficient degradation and mineralization of pollutants. To improve treatment efficiency, multi-layered catalytic structures or tandem catalytic plates are often used in practical engineering to enhance the overall purification effect. However, most common photocatalytic devices currently use fixed catalytic plate structures. While these structures offer some stability during initial installation, long-term operation often presents challenges such as difficult disassembly and limited operating space when replacement or cleaning is required due to deposits or material aging on the catalytic plate surface, affecting the maintainability and long-term operational stability of the device. Therefore, there is an urgent need for a photocatalytic device for purifying industrial wastewater that addresses the aforementioned problems of inconvenient disassembly and maintenance. Utility Model Content

[0003] The purpose of this invention is to provide a photocatalytic device for purifying industrial wastewater, so as to solve the problem of inconvenient disassembly and maintenance mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a photocatalytic device for purifying industrial wastewater, comprising a catalyst body. Inside the catalyst body, from top to bottom, are five groups of catalyst layers: a first catalyst layer, a second catalyst layer, a third catalyst layer, a fourth catalyst layer, and a fifth catalyst layer. Each group of catalyst layers is arranged in an alternating, inclined manner from top to bottom. Each group of catalyst layers is fixedly connected to the side wall of the catalyst body with a sealing element. Each group of catalyst layers consists of a fixing frame and a catalyst plate. The fixing frame is fixed to one side of the sealing element. A catalyst plate is slidably connected to the top of the fixing frame. A track is provided at the bottom edge of the catalyst plate. A support is provided below the fixing frame and fixed to the inner side wall of the catalyst body. A roller is movably mounted on the top of the support, and the roller is in a rolling connection with the track. A handle is fixedly connected to the left side of the catalyst plate, and the handle is located outside the catalyst body.

[0005] As a further technical solution of this utility model, the first catalyst layer, the third catalyst layer and the fifth catalyst layer are arranged on the left side wall of the catalyst body, and the second catalyst layer and the fourth catalyst layer are arranged on the right side wall of the catalyst body.

[0006] As a further technical solution of this utility model, the fixing frame is processed with an arc-shaped guide groove on the inclined side edge, and the arc-shaped guide groove is a curved plate with a width matching the fixing frame.

[0007] As a further technical solution of this utility model, the size of the catalyst plate is smaller than that of the fixing frame, and multiple sets of rectangular flow-blocking blocks are uniformly arranged inside the catalyst plate.

[0008] As a further technical solution of this utility model, the bottom ends of the first catalyst layer, the second catalyst layer, the third catalyst layer and the fourth catalyst layer are all fixedly connected to lamp holders, and photocatalytic lamp tubes are fixedly assembled at the lamp holders, with a reflector covering the top of the photocatalytic lamp tubes.

[0009] As a further technical solution of this utility model, the reflector is a semi-circular cover made of high-reflectivity aluminum alloy sheet.

[0010] As a further technical solution of this utility model, a bottom groove is provided at the bottom of the fifth catalyst layer, a reflux groove is provided at the top of the catalyst body, and a circulation pump is fixedly connected to the left side of the outer wall of the catalyst body.

[0011] As a further technical solution of this utility model, a return pipe is connected between the circulating pump and the bottom tank and the return tank, and a sewage pipe is installed at the bottom of the return tank, and the sewage pipe is located on the upper left of the first catalyst layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the photocatalytic device for purifying industrial wastewater not only achieves a compact structure and easy replacement, but also achieves uniform irradiation and improves the reaction rate, and realizes cyclic treatment;

[0013] (1) By setting a first catalyst layer, a second catalyst layer, a third catalyst layer, a fourth catalyst layer and a fifth catalyst layer, each group contains a fixing frame and a catalyst plate. The catalyst plate does not need to be removed by external force during disassembly, which solves the problem of complex structure and difficult replacement in traditional devices;

[0014] (2) By setting up photocatalytic lamp tubes, reflectors and lamp holders, the reflectors are made of high reflective aluminum alloy material, so that the surface of the catalytic plate is more uniformly illuminated, further improving the reaction rate of the catalytic material, accelerating the decomposition process of organic pollutants in industrial wastewater, and solving the problems of uneven irradiation and poor catalytic effect in the existing device.

[0015] (3) By setting up a bottom tank, a circulating pump, a return pipe, a return trough and a sewage pipe, the wastewater after catalysis is recycled and reused, and the reaction is more thorough. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2This is a schematic diagram of the catalyst plate extraction method of this utility model;

[0018] Figure 3 This is a schematic diagram of the reflector structure of this utility model from a bottom view;

[0019] Figure 4 This is a top view schematic diagram of the catalytic plate structure of this utility model.

[0020] In the diagram: 1. First catalyst layer; 2. Second catalyst layer; 3. Third catalyst layer; 4. Fourth catalyst layer; 5. Fifth catalyst layer; 6. Catalyst body; 7. Fixing frame; 8. Bottom tank; 9. Circulation pump; 10. Return pipe; 11. Return trough; 12. Sewage pipe; 13. Catalytic plate; 14. Handle; 15. Seal; 16. Track; 17. Support; 18. Roller; 19. Photocatalytic lamp tube; 20. Reflector; 21. Lamp holder; 22. Arc-shaped guide groove; 23. Flow obstruction block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 An embodiment of this utility model provides a photocatalytic device for purifying industrial wastewater, comprising a catalyst body 6. Inside the catalyst body 6, from top to bottom, are five sets of catalyst layers: a first catalyst layer 1, a second catalyst layer 2, a third catalyst layer 3, a fourth catalyst layer 4, and a fifth catalyst layer 5. Each set of catalyst layers is arranged in an alternating, inclined manner from top to bottom. Each set of catalyst layers is fixedly connected to the side wall of the catalyst body 6 with a sealing element 15. Each set of catalyst layers consists of a fixing frame 7 and a catalyst plate 13. The fixing frame 7 is fixed to one side of the sealing element 15. The top of the fixing frame 7 is slidably connected to the catalyst plate 13. A track 16 is provided at the bottom edge of the catalyst plate 13. A support 17 is provided below the fixing frame 7 and is fixed to the inner side wall of the catalyst body 6. A roller 18 is movably mounted on the top of the support 17, and the roller 18 and the track 16 form a rolling connection. A handle 14 is fixedly connected to the left side of the catalyst plate 13, and the handle 14 is located outside the catalyst body 6.

[0023] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, each group contains a fixing frame 7 and a catalyst plate 13. The fixing frame 7 is fixed to the sealing element 15 and connected to the bracket 17. The catalyst plate 13 slides with the track 16 through the roller 18. The catalyst plate 13 is provided with a handle 14 on the left side for pulling. It can be pulled out by the handle 14 when replacing or repairing. The track 16 contacts the roller 18 smoothly, ensuring that the catalyst plate 13 can be removed without external force during disassembly. The first catalyst layer 1 to the fifth catalyst layer 5 are arranged in an alternating inclined manner. The wastewater is naturally guided between the catalyst layers through the arc-shaped guide groove 22, so as to successfully complete the multi-stage photocatalytic degradation process.

[0024] The first catalyst layer 1, the third catalyst layer 3, and the fifth catalyst layer 5 are arranged on the left side wall of the catalyst body 6, and the second catalyst layer 2 and the fourth catalyst layer 4 are arranged on the right side wall of the catalyst body 6. The fixing frame 7 has an arc-shaped guide groove 22 processed on its inclined side edge. The arc-shaped guide groove 22 is a curved plate with a width matching the fixing frame 7. The catalyst plate 13 is smaller than the fixing frame 7. Multiple sets of rectangular flow-blocking blocks 23 are evenly arranged inside the catalyst plate 13. The bottom ends of the first catalyst layer 1, the second catalyst layer 2, the third catalyst layer 3, and the fourth catalyst layer 4 are all fixedly connected to the lamp holder 21. A photocatalytic lamp tube 19 is fixedly installed at the lamp holder 21. A reflector 20 is provided above the photocatalytic lamp tube 19. The reflector 20 is a semi-arc cover made of high-reflectivity aluminum alloy plate.

[0025] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, each set of fixing brackets 7 is equipped with a lamp holder 21 at the bottom for installing photocatalytic lamp tubes 19. The reflector 20 is made of high reflective aluminum alloy material, which makes the surface of the catalyst plate 13 more uniformly illuminated, further improving the reaction rate of catalyst materials such as TiO2 and accelerating the decomposition process of organic pollutants in industrial wastewater.

[0026] The bottom of the fifth catalyst layer 5 is provided with a bottom groove 8, the top of the catalyst body 6 is provided with a return groove 11, a circulation pump 9 is fixedly connected to the left side of the outer wall of the catalyst body 6, a return pipe 10 is connected between the circulation pump 9 and the bottom groove 8 and the return groove 11, a sewage pipe 12 is installed at the bottom of the return groove 11, and the sewage pipe 12 is located at the upper left of the first catalyst layer 1.

[0027] Specifically, such as Figure 1 As shown, wastewater enters the catalyst body 6 through the sewage pipe 12, flows from top to bottom through the first catalyst layer 1 to the fifth catalyst layer 5, and then flows into the bottom tank 8. It is then pumped by the circulation pump 9 and transported to the return tank 11 through the return pipe 10. Finally, it is injected back into the catalyst body 6 through the sewage pipe 12 for the next round of reaction.

[0028] Working principle: Industrial wastewater flows into the first catalytic layer 1 through the sewage pipe 12 and is guided by the arc-shaped guide channel 22 to the second catalytic layer 2, the third catalytic layer 3, the fourth catalytic layer 4 and the fifth catalytic layer 5 in sequence. The surface of the catalytic plate 13 is uniformly distributed with flow-blocking blocks 23, which increases the residence time of wastewater on the plate surface, reduces the flow rate, increases the frequency of contact between pollutants and the catalytic surface, and improves the reaction efficiency. The lamp holder 21 is equipped with a photocatalytic lamp tube 19, and a reflector 20 is set above it to enhance the irradiation intensity and uniformity, and promote the activation reaction of catalytic materials such as TiO2. After the wastewater undergoes multi-layer catalytic reaction, it flows into the bottom tank 8 and is sent to the return tank 11 by the circulation pump 9 through the return pipe 10. It is then injected again from the sewage pipe 12 to complete multiple rounds of cyclic reaction, thereby improving the treatment efficiency of high-concentration and difficult-to-degrade industrial wastewater.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A photocatalytic device for purifying industrial wastewater, comprising a catalytic body (6), characterized in that: The catalyst body (6) is provided with five sets of catalyst layers from top to bottom: a first catalyst layer (1), a second catalyst layer (2), a third catalyst layer (3), a fourth catalyst layer (4), and a fifth catalyst layer (5). Each set of catalyst layers is arranged in an alternating and inclined manner from top to bottom. Each set of catalyst layers is fixedly connected to the side wall of the catalyst body (6) with a sealing element (15). Each set of catalyst layers consists of a fixing frame (7) and a catalyst plate (13). The fixing frame (7) is fixed to one side of the sealing element (15). The top of the fixing frame (7) is slidably connected to the catalyst plate (13). The bottom edge of the catalyst plate (13) is provided with a track (16). A bracket (17) is provided below the fixing frame (7). The bracket (17) is fixed to the inner wall of the catalyst body (6). A roller (18) is movably mounted on the top of the bracket (17). The roller (18) and the track (16) form a rolling connection. A handle (14) is fixedly connected to the left side of the catalyst plate (13). The handle (14) is located outside the catalyst body (6).

2. A photocatalytic device for purifying industrial wastewater according to claim 1, characterized in that: The first catalyst layer (1), the third catalyst layer (3) and the fifth catalyst layer (5) are arranged on the left side wall of the catalyst body (6), and the second catalyst layer (2) and the fourth catalyst layer (4) are arranged on the right side wall of the catalyst body (6).

3. The photocatalytic device for purifying industrial wastewater according to claim 1, characterized in that: The fixing frame (7) has an arc-shaped guide groove (22) processed on the inclined side edge. The arc-shaped guide groove (22) is a curved plate with a width matching that of the fixing frame (7).

4. The photocatalytic device for purifying industrial wastewater according to claim 1, characterized in that: The catalyst plate (13) is smaller than the fixing frame (7), and multiple sets of rectangular flow-blocking blocks (23) are uniformly arranged inside the catalyst plate (13).

5. The photocatalytic device for purifying industrial wastewater according to claim 1, characterized in that: The bottom ends of the first catalyst layer (1), the second catalyst layer (2), the third catalyst layer (3) and the fourth catalyst layer (4) are all fixedly connected to a lamp holder (21), and a photocatalytic lamp tube (19) is fixedly installed at the lamp holder (21), and a reflector (20) is provided on the top of the photocatalytic lamp tube (19).

6. A photocatalytic device for purifying industrial wastewater according to claim 5, characterized in that: The reflector (20) is a semi-circular cover made of high-reflectivity aluminum alloy sheet.

7. A photocatalytic device for purifying industrial wastewater according to claim 1, characterized in that: The fifth catalyst layer (5) has a bottom groove (8) at the bottom end, the catalyst body (6) has a reflux groove (11) at the top end, and a circulation pump (9) is fixedly connected to the left side of the outer wall of the catalyst body (6).

8. A photocatalytic device for purifying industrial wastewater according to claim 7, characterized in that: A return pipe (10) is connected between the circulating pump (9) and the bottom tank (8) and the return tank (11). A sewage pipe (12) is installed at the bottom of the return tank (11). The sewage pipe (12) is located to the upper left of the first catalyst layer (1).

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