Industrial waste gas and waste water photocatalytic oxidation treatment device

Abstract

This utility model discloses a photocatalytic oxidation treatment device for industrial waste gas and wastewater, comprising a treatment box, an air inlet funnel installed on one side of the treatment box, an air inlet pipe installed at one end of the air inlet funnel, a filter screen installed on one side of the treatment box located at the air inlet funnel, a cleaning component installed on one side of the filter screen, and several metal meshes and lamp tube assemblies installed inside the treatment box, with a lamp tube assembly installed on one side of each metal mesh. The cleaning component includes a drive device installed on the top of the treatment box, a rotating rod installed at one end of the drive device, a bevel gear one fixedly installed on the rotating rod, and a bevel gear two meshing on the surface of the bevel gear one. This photocatalytic oxidation treatment device for industrial waste gas and wastewater has a simple and reasonable structure, novel design, and simple operation, and has high practicality, making it easy to widely promote and use.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment devices, specifically a photocatalytic oxidation treatment device for industrial waste gas and wastewater. Background Technology

[0002] With the rapid development of my country's economy, industrial production inevitably generates waste gas, among which gaseous waste gas is the most numerous and harmful type. Currently, gaseous waste gases mainly include nitrogen-containing organic waste gas, sulfur-containing waste gas, and hydrocarbon organic waste gas. If these waste gases are discharged into the air without treatment, they will inevitably impact the environment. There are many methods for treating industrial waste gas, including activated carbon adsorption, catalytic combustion, catalytic oxidation, acid-base neutralization, and plasma methods. Among these, photocatalytic oxidation has been widely used due to its high efficiency, low energy consumption, and lack of secondary pollution.

[0003] Current industrial waste gas and wastewater photocatalytic oxidation treatment devices typically use filters to intercept larger dust particles carried in the waste gas. The filtered waste gas then enters the photocatalytic reactor, where, under ultraviolet light irradiation, the photocatalyst oxidizes and decomposes volatile pollutants in the waste gas into harmless substances. The reacted gas is then further purified through demisting and adsorption devices to ensure that it meets emission standards. However, with prolonged use, particulate matter can accumulate on the surface of the filter, which may lead to uneven airflow and affect the contact efficiency between the waste gas and the photocatalyst.

[0004] Therefore, we have made improvements to this and proposed a photocatalytic oxidation treatment device for industrial waste gas and wastewater. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a photocatalytic oxidation treatment device for industrial waste gas and wastewater, comprising a treatment box, an air inlet funnel installed on one side of the treatment box, an air inlet pipe installed at one end of the air inlet funnel, a filter screen installed on one side of the treatment box located at the air inlet funnel, a cleaning assembly installed on one side of the filter screen, several metal meshes and lamp tube assemblies installed inside the treatment box, each metal mesh having a lamp tube assembly on one side, the cleaning assembly including a drive device installed on the top of the treatment box, a rotating rod installed at one end of the drive device, a bevel gear one fixedly installed on the rotating rod, a bevel gear two meshing on the surface of the bevel gear one, a bearing seat installed inside the treatment box, a connecting rod installed on one side of the bearing seat, a through hole opened inside the filter screen, one end of the connecting rod passing through the through hole, the bevel gear two mounted on the connecting rod, a set of scrapers installed on the connecting rod, the scrapers being in contact with both sides of the filter screen, an exhaust funnel installed on one side of the treatment box, an exhaust pipe installed at one end of the exhaust funnel.

[0007] As a preferred embodiment of this utility model, the driving device includes a motor, and the output end of the motor passes through the processing box and is connected to the rotating rod.

[0008] As a preferred embodiment of this invention, the metal mesh is composed of several metal sheets arranged in a cross pattern, and a nano-TiO2 catalyst is attached to the metal mesh.

[0009] As a preferred embodiment of this utility model, the lamp assembly includes a mounting frame installed inside the processing box, and a plurality of ultraviolet lamps are installed in the mounting frame.

[0010] As a preferred embodiment of this utility model, a flange is installed at one end of both the intake pipe and the exhaust pipe.

[0011] As a preferred embodiment of this utility model, the ultraviolet lamp tube and the mounting bracket are detachably installed.

[0012] As a preferred embodiment of this utility model, a control panel is installed on the surface of the processing box, and the control panel is electrically connected to each electrical appliance.

[0013] The beneficial effects of this utility model are:

[0014] 1. The beneficial effects of this industrial waste gas and wastewater photocatalytic oxidation treatment device are as follows: Through the coordinated use of the filter screen, motor, rotating rod, bevel gear one, bevel gear two, bearing seat, connecting rod, through hole, and scraper, when the filter screen is covered with excessive particles and impurities, the motor is started, and the motor drives bevel gear one to rotate. Since bevel gear one meshes with bevel gear two, it can drive bevel gear two to rotate. A set of scrapers is installed on the connecting rod, and the scrapers are in contact with both sides of the filter screen. When bevel gear two rotates, it can drive a set of scrapers to clean both sides of the filter screen. Through the above design, particles are prevented from accumulating on the filter screen, maintaining the high-efficiency filtration capacity of the filter screen. At the same time, it can maintain the smooth flow of air, ensure that the waste gas is evenly distributed to the photocatalytic reaction zone, improve the photocatalytic reaction efficiency, and reduce the generation of secondary pollution.

[0015] 2. The beneficial effects of this industrial waste gas and wastewater photocatalytic oxidation treatment device are as follows: Through the combined use of the mounting frame, ultraviolet lamps, and metal mesh, the nano-TiO2 catalyst attached to the metal mesh, with the metal mesh serving as a supporting material, ensures uniform adhesion of the nano-TiO2 catalyst and maintains high stability. The catalyst can be evenly distributed on the mesh, avoiding catalyst agglomeration and extending the effective service life of the catalyst. At the same time, the ultraviolet lamps can effectively stimulate the photocatalytic activity of the nano-TiO2 catalyst, accelerate the oxidation reaction, and promote the decomposition of harmful gases or pollutants. Attached Figure Description

[0016] The above and other objects, features and advantages of this disclosure will become more apparent from the more detailed description of exemplary embodiments thereof taken in conjunction with the accompanying drawings, wherein like reference numerals generally denote like parts.

[0017] Figure 1 This is a perspective view of a photocatalytic oxidation treatment device for industrial waste gas and wastewater according to this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the treatment box of a photocatalytic oxidation treatment device for industrial waste gas and wastewater according to this utility model.

[0019] Figure 3 This is a three-dimensional view of the cleaning component of a photocatalytic oxidation treatment device for industrial waste gas and wastewater according to this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the scraper of a photocatalytic oxidation treatment device for industrial waste gas and wastewater according to this utility model;

[0021] Figure 5 This is a schematic diagram of the through-hole of a photocatalytic oxidation treatment device for industrial waste gas and wastewater according to this utility model.

[0022] In the diagram: 1. Processing box; 2. Inlet funnel; 3. Inlet pipe; 4. Filter screen; 5. Metal mesh; 6. Rotating rod; 7. Bevel gear one; 8. Bevel gear two; 9. Bearing seat; 10. Connecting rod; 11. Through hole; 12. Scraper; 13. Exhaust funnel; 14. Exhaust pipe; 15. Motor; 16. Mounting bracket; 17. Ultraviolet lamp tube; 18. Flange; 19. Control panel. Detailed Implementation

[0023] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0024] Example: Figure 1-5 As shown, this utility model discloses a photocatalytic oxidation treatment device for industrial waste gas and wastewater, comprising a treatment box 1. An air inlet funnel 2 is installed on one side of the treatment box 1, and an air inlet pipe 3 is installed at one end of the air inlet funnel 2. A filter screen 4 is installed on one side of the treatment box 1 near the air inlet funnel 2, and a cleaning assembly is installed on one side of the filter screen 4. Several metal meshes 5 and lamp assemblies are installed inside the treatment box 1, with a lamp assembly on one side of each metal mesh 5. The cleaning assembly includes a driving device installed on the top of the treatment box 1, and a rotating rod 6 is installed at one end of the driving device. A bevel gear 7 is fixedly installed on the rotating rod 6. A bevel gear 8 meshes with the surface of the bevel gear 7. A bearing seat 9 is installed inside the processing box 1. A connecting rod 10 is installed on one side of the bearing seat 9. A through hole 11 is opened inside the filter screen 4. One end of the connecting rod 10 passes through the through hole 11. The bevel gear 8 is installed on the connecting rod 10. A set of scrapers 12 is installed on the connecting rod 10. The scrapers 12 are in contact with both the front and back surfaces of the filter screen 4. An exhaust funnel 13 is installed on one side of the processing box 1. An exhaust pipe 14 is installed at one end of the exhaust funnel 13.

[0025] Through the coordinated use of filter screen 4, motor 15, rotating rod 6, bevel gear 7, bevel gear 8, bearing seat 9, connecting rod 10, through hole 11, and scraper 12, when filter screen 4 is covered with excessive particles and impurities, motor 15 is started. Motor 15 drives bevel gear 7 to rotate. Since bevel gear 7 meshes with bevel gear 8, it can drive bevel gear 8 to rotate. A set of scrapers 12 is installed on connecting rod 10, and scrapers 12 are in contact with both sides of filter screen 4. When bevel gear 8 rotates, it can drive a set of scrapers 12 to clean both sides of filter screen 4. Through the above design, particles are prevented from accumulating on filter screen 4, maintaining the high-efficiency filtration capacity of filter screen 4. At the same time, it can maintain the smooth flow of air, ensure that the exhaust gas is evenly distributed to the photocatalytic reaction zone, improve the efficiency of photocatalytic reaction, and reduce the generation of secondary pollution.

[0026] The driving device includes a motor 15, the output end of which passes through the processing box 1 and is connected to the rotating rod 6.

[0027] The metal mesh 5 is composed of several metal sheets arranged in a cross pattern, and nano-TiO2 catalyst is attached to the metal mesh 5.

[0028] The lamp assembly includes a mounting frame 16 installed inside the processing box 1. Several ultraviolet lamps 17 are installed in the mounting frame 16. Through the combined use of the mounting frame 16, the ultraviolet lamps 17 and the metal mesh 5, the nano-TiO2 catalyst attached to the metal mesh 5 serves as a support material, ensuring that the nano-TiO2 catalyst is uniformly attached and maintains high stability. The catalyst can be evenly distributed on the mesh, avoiding catalyst agglomeration and extending the effective service life of the catalyst. At the same time, the ultraviolet lamps 17 can effectively stimulate the photocatalytic activity of the nano-TiO2 catalyst, accelerate the oxidation reaction, and promote the decomposition of harmful gases or pollutants.

[0029] Both the intake pipe 3 and the exhaust pipe 14 are equipped with flanges 18 at one end.

[0030] The ultraviolet lamp tube 17 and the mounting bracket 16 are detachable.

[0031] The surface of the processing box 1 is equipped with a control panel 19, which is electrically connected to various electrical appliances.

[0032] (The wiring diagrams of the motor 15 and the ultraviolet lamp 17 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring arrangement of the motor 15 and the ultraviolet lamp 17 will not be explained in detail.)

[0033] Working Principle: When using this industrial waste gas and wastewater photocatalytic oxidation treatment device, the operator first connects the inlet pipe 3 of the treatment box 1 to the pre-treatment device and the exhaust pipe 14 to the post-treatment device. After installation, the operator introduces waste gas into the treatment box 1. Due to prolonged use, excessive particulate matter and impurities accumulate on the filter screen 4, affecting the flow rate of the waste gas. When the filter screen 4 is covered with excessive particulate matter and impurities, the motor 15 is started. The motor 15 drives the bevel gear 7 to rotate. Since bevel gear 7 meshes with bevel gear 8, it can drive bevel gear 8 to rotate. A set of scrapers 12 is installed on the connecting rod 10, and the scrapers 12 are in contact with both sides of the filter screen 4. When bevel gear 8 rotates, it drives the scrapers 12 to clean the filter screen 4. Cleaning is performed on both sides to prevent particulate matter from accumulating on the filter screen 4, maintaining the filter screen 4's high-efficiency filtration capacity, and ensuring smooth airflow. This ensures that the exhaust gas is evenly distributed in the photocatalytic reaction zone, improving the photocatalytic reaction efficiency and reducing secondary pollution. Because the nano-TiO2 catalyst is attached to the metal mesh 5, the metal mesh 5 acts as a support material, allowing the nano-TiO2 catalyst to adhere evenly and maintain high stability. The catalyst can be evenly distributed on the mesh, avoiding catalyst agglomeration and extending the effective service life of the catalyst. At the same time, the ultraviolet lamp tube 17 can effectively stimulate the photocatalytic activity of the nano-TiO2 catalyst, accelerate the oxidation reaction, and promote the decomposition of harmful gases or pollutants. Finally, the catalytically treated exhaust gas is discharged from the exhaust funnel 13 and the exhaust pipe 14.

[0034] Those skilled in the art should understand that the above description of the embodiments of the present invention is only intended to illustrate the beneficial effects of the embodiments of the present invention, and is not intended to limit the embodiments of the present invention to any of the examples given.

[0035] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A photocatalytic oxidation treatment device for industrial waste gas and wastewater, comprising a treatment tank (1), characterized in that, An air inlet funnel (2) is installed on one side of the processing box (1), and an air inlet pipe (3) is installed at one end of the air inlet funnel (2). A filter screen (4) is installed on one side of the processing box (1) located at the air inlet funnel (2). A cleaning assembly is installed on one side of the filter screen (4). Several metal meshes (5) and lamp tube assemblies are installed inside the processing box (1). Each metal mesh (5) has a lamp tube assembly on one side. The cleaning assembly includes a drive device installed on the top of the processing box (1). A rotating rod (6) is installed at one end of the drive device. A bevel gear (7) is fixedly installed on the rotating rod (6). A bevel gear (8) meshes with the surface of the first (7). A bearing seat (9) is installed inside the processing box (1). A connecting rod (10) is installed on one side of the bearing seat (9). A through hole (11) is opened inside the filter screen (4). One end of the connecting rod (10) passes through the through hole (11). The bevel gear (8) is installed on the connecting rod (10). A set of scrapers (12) is installed on the connecting rod (10). The scrapers (12) are in contact with both the front and back sides of the filter screen (4). An exhaust funnel (13) is installed on one side of the processing box (1). An exhaust pipe (14) is installed at one end of the exhaust funnel (13).

2. The photocatalytic oxidation treatment device for industrial waste gas and wastewater according to claim 1, characterized in that, The driving device includes a motor (15), the output end of which passes through the processing box (1) and is connected to the rotating rod (6).

3. The photocatalytic oxidation treatment device for industrial waste gas and wastewater according to claim 2, characterized in that, The metal mesh (5) is composed of several metal sheets arranged in a cross pattern, and nano-TiO2 catalyst is attached to the metal mesh (5).

4. The photocatalytic oxidation treatment device for industrial waste gas and wastewater according to claim 3, characterized in that, The lamp assembly includes a mounting bracket (16) installed inside the processing box (1), and a plurality of ultraviolet lamps (17) are installed in the mounting bracket (16).

5. The photocatalytic oxidation treatment device for industrial waste gas and wastewater according to claim 4, characterized in that, A flange (18) is installed at one end of both the intake pipe (3) and the exhaust pipe (14).

6. The photocatalytic oxidation treatment device for industrial waste gas and wastewater according to claim 5, characterized in that, The ultraviolet lamp (17) can be detachably installed between the mounting bracket (16).

7. The photocatalytic oxidation treatment device for industrial waste gas and wastewater according to claim 6, characterized in that, The surface of the processing box (1) is equipped with a control panel (19), which is electrically connected to each electrical appliance.

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