Multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater

Abstract

This utility model discloses a multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater, specifically relating to the field of industrial wastewater treatment technology. It includes an outer cylinder, a base frame fixedly connected to the bottom of the outer cylinder, an inlet pipe fixedly connected to the top of the outer cylinder, and an outlet pipe fixedly connected to the bottom of the outer cylinder. An electromagnetic valve is installed inside the outlet pipe. A servo motor is installed at the top of the outer cylinder. A first support bracket is fixedly connected to the inner side of the outer cylinder, and a second and third fixed support brackets are also fixedly connected to the inner side of the outer cylinder. This utility model utilizes a turntable, a guide channel, and an outlet to initially mix and disperse the high-concentration organic wastewater with the catalyst, forming a liquid film on the inner wall of the outer cylinder. This expands the light-illuminated area and improves light utilization efficiency. A transmission rod and a stirring frame further mix the wastewater and catalyst, breaking down pollutant particles and enhancing the mixing and degradation effect. Combined with scraper agitation, this promotes wastewater output and improves treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and more specifically, to a multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater. Background Technology

[0002] In photocatalytic oxidation technology, the decisive factors determining the catalytic oxidation effect of organic matter include catalysts, ultraviolet lamps, pH value, and oxidants. Photocatalytic reaction devices are designed based on the water quality and quantity required for wastewater treatment, and therefore cannot adapt well to fluctuations in water quality and quantity during operation. When the type of wastewater changes or its concentration increases, the treatment fails to achieve the intended goals; when the water volume is too small, the device cannot operate; when the water volume is too large, the wastewater cannot be completely treated, resulting in effluent that fails to meet discharge standards, causing significant losses to the enterprise and the ecological environment.

[0003] In practical applications, high-concentration organic wastewater contains many pollutants. When high-concentration organic wastewater accumulates, its light penetration ability is poor, which reduces the irradiation efficiency of light on high-concentration organic wastewater and affects the photocatalytic treatment efficiency of high-concentration organic wastewater. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage photocatalytic oxidation reactor for the treatment of high-concentration organic wastewater, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater includes an outer cylinder. A base frame is fixedly connected to the bottom of the outer cylinder. An inlet pipe is fixedly connected to the top of the outer cylinder, and an outlet pipe is fixedly connected to the bottom of the outer cylinder. A solenoid valve is installed inside the outlet pipe. A servo motor is installed at the top of the outer cylinder. A first support is fixedly connected to the inner side of the outer cylinder. A second support and a first support are also fixedly connected to the inner side of the outer cylinder. Multiple lamps are fixedly connected to the top of the first support. A diversion mechanism is provided inside the outer cylinder. The diversion mechanism includes a second support, the top of which is fixedly connected to the output end of the solenoid valve. The bottom of the second support is fixedly connected to a turntable, the bottom of which is rotatably connected to the top of the second support. Multiple guide channels and outlets are provided on the inner side of the turntable, arranged in a circular array. A storage cylinder is fixedly connected to the outer side of the outer cylinder, with an inlet at the top. A mechanical pump is fixedly connected to the outer side of the storage cylinder, with both its output and input ends fixedly connected to infusion pipes. One infusion pipe penetrates the inner side of the storage cylinder and extends into it, while the other infusion pipe is connected at one end to the top of the outer cylinder. An agitation mechanism is provided on the inner side of the outer cylinder.

[0006] By adopting the above technical solution: using multiple guide channels and water outlets on the inner side of the turntable, in conjunction with mechanical pumps and liquid delivery pipes, the catalyst inside the storage cylinder is injected into the sewage inside the turntable, so that the high-concentration organic wastewater and catalyst can be dispersed and sprayed outwards, and the high-concentration organic wastewater and catalyst can flow downwards along the inner wall of the outer cylinder, so that the high-concentration organic wastewater can be fully exposed to light by the fixed frame two.

[0007] As a further description of the above technical solution: the agitation mechanism includes a rotating shaft, one end of which is fixedly connected to the bottom of a turntable, the outer side of which is rotatably connected to the inner side of a second fixed frame, a turntable fixedly connected to the bottom end of the rotating shaft, the bottom end of which is rotatably connected to the inner side of a first bracket, a plurality of scrapers fixedly connected to the bottom of the turntable, a plurality of transmission rods fixedly connected to the bottom of the turntable, and a plurality of agitation frames fixedly connected to the outer side of the transmission rods.

[0008] By adopting the above technical solution, the high-concentration organic wastewater and catalyst are fully agitated and dispersed by the rotation of multiple transmission rods and agitator frames, and the high-concentration organic wastewater at the bottom of the outer cylinder can be concentrated and discharged to the outlet pipe in conjunction with the rotating shaft, turntable and multiple scrapers.

[0009] The technical effects and advantages of this utility model are as follows: 1. By setting up a diversion mechanism, compared with the existing technology, the rotation of the turntable, guide channel and outlet is used to make the high-concentration organic wastewater and the catalyst injected by the mechanical pump and delivery pipe preliminarily mixed and then rotated and dispersed outward sprayed, so that the high-concentration organic wastewater is evenly distributed on the inner wall of the outer cylinder to form a liquid film, which expands the illumination area of ​​the lamp tube on the high-concentration organic wastewater and improves the light utilization efficiency. 2. By setting up an agitation mechanism, compared with the existing technology, the agitation of multiple transmission rods and agitator frames can further mix the aggregated high-concentration organic wastewater and catalyst, and the generated micro-vortex can further break up pollutant particles, enhancing the mixing and degradation effect. Combined with the scraping of multiple scrapers, it can promote the output of high-concentration organic wastewater and improve the treatment efficiency of high-concentration organic wastewater. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0012] Figure 3 This is a partial schematic diagram of the connection between the turntable and the shaft of this utility model.

[0013] Figure 4 This is a partial schematic diagram of the connection between the outer cylinder and the fixing frame of this utility model.

[0014] Figure 5 This is a partial schematic diagram of the connection between the storage cylinder and the feed inlet of this utility model.

[0015] Figure 6 For the present utility model Figure 3 Enlarged diagram of A in the middle.

[0016] The attached diagram is labeled as follows: 1. Outer cylinder; 2. Base frame; 3. Inlet pipe; 4. Outlet pipe; 5. Solenoid valve; 6. Servo motor; 7. Support 1; 8. Support 2; 9. Turntable; 10. Guide channel; 11. Outlet; 12. Storage cylinder; 13. Feed inlet; 14. Mechanical pump; 15. Infusion pipe; 16. Rotating shaft; 17. Turntable; 18. Scraper; 19. Transmission rod; 20. Agitator; 21. Fixing frame 1; 22. Lamp tube; 23. Fixing frame 2. Detailed Implementation

[0017] 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.

[0018] The embodiments disclosed in this application are as follows: Figures 1-6The multi-stage photocatalytic oxidation reactor shown for treating high-concentration organic wastewater includes an outer cylinder 1, a base frame 2 fixedly connected to the bottom of the outer cylinder 1, an inlet pipe 3 fixedly connected to the top of the outer cylinder 1, an outlet pipe 4 fixedly connected to the bottom of the outer cylinder 1, a solenoid valve 5 installed inside the outlet pipe 4, a servo motor 6 installed at the top of the outer cylinder 1, a support frame 7 fixedly connected to the inner side of the outer cylinder 1, a second support frame 23 and a first support frame 21 fixedly connected to the inner side of the outer cylinder 1, multiple lamp tubes 22 fixedly connected to the top of the first support frame 21, and a diversion mechanism installed inside the outer cylinder 1. The diversion mechanism includes a second support frame 8, the top of which is fixedly connected to the output end of the solenoid valve 5, and a turntable 9 fixedly connected to the bottom of the second support frame 8. The bottom of the turntable 9 is rotatably connected to the top of the second support frame 23. Multiple guide channels 10 and outlets 11 are provided inside the turntable 9, arranged in a ring array. Inside the turntable 9, a storage cylinder 12 is fixedly connected to the outer side of the outer cylinder 1. A feed inlet 13 is provided at the top of the storage cylinder 12. A mechanical pump 14 is fixedly connected to the outer side of the storage cylinder 12. Both the output and input ends of the mechanical pump 14 are fixedly connected to a liquid delivery pipe 15. One of the liquid delivery pipes 15 passes through the inner side of the storage cylinder 12 and extends into the interior of the storage cylinder 12. One end of the other liquid delivery pipe 15 is connected to the top of the outer cylinder 1. An agitation mechanism is provided inside the outer cylinder 1. The mechanical pump 14 and the two liquid delivery pipes 15 continuously inject the catalyst inside the storage cylinder 12 into the interior of the turntable 9 to mix with the sewage. Combined with the turntable 9, multiple guide channels 10 and water outlet 11, the high-concentration organic wastewater and catalyst are dispersed and sprayed, so that the high-concentration organic wastewater and catalyst flow on the inner wall of the outer cylinder 1 to form a liquid film. The lamp tube 22 is expanded to maintain sufficient light irradiation on the liquid film flowing on the inner wall of the outer cylinder 1.

[0019] Reference Figure 1 and Figure 3 As shown, the agitation mechanism includes a rotating shaft 16, one end of which is fixedly connected to the bottom of the turntable 9, and the outer side of the rotating shaft 16 is rotatably connected to the inner side of the fixed frame 23. The bottom end of the rotating shaft 16 is fixedly connected to a turntable 17, and the bottom end of the turntable 17 is rotatably connected to the inner side of the bracket 7. Multiple scrapers 18 are fixedly connected to the bottom of the turntable 17, and multiple transmission rods 19 are fixedly connected to the bottom of the turntable 9. Multiple agitators 20 are fixedly connected to the outer side of the transmission rods 19. The turntable 9 drives the rotating shaft 16 and the transmission rods 19 to rotate, so that the multiple agitators 20 can agitate and disperse the high-concentration organic wastewater and catalyst accumulated inside the outer cylinder 1, avoiding the large-scale accumulation of impurities in the high-concentration organic wastewater. Combined with the multiple scrapers 18 at the bottom of the turntable 17, the bottom of the outer cylinder 1 can be scraped, causing the purified high-concentration organic wastewater to be discharged out through the outlet pipe 4.

[0020] The working principle of this invention is as follows: When performing photocatalytic oxidation on high-concentration organic wastewater, the high-concentration organic wastewater is first input into the inner side of the turntable 9 through the inlet pipe 3. Then, the servo motor 6 is started to drive the support 8 and the turntable 9 to rotate on the top of the fixed frame 23. At the same time, the catalyst is injected into the storage cylinder 12 through the feed inlet 13. The mechanical pump 14 and two delivery pipes 15 are started to continuously input the catalyst from the storage cylinder 12 into the outer cylinder 1, so that the catalyst is injected into the interior of the turntable 9. The high-concentration organic wastewater and the catalyst are agitated by the rotation of the turntable 9. Guided by multiple guide channels 10 and outlet 11 at the bottom of the turntable 9, the high-concentration organic wastewater and the catalyst are sprayed out through the multiple guide channels 10 and outlet 11 respectively. The high-concentration organic wastewater flows downwards along the inner wall of the outer cylinder 1. Simultaneously, multiple lamps 22 are activated to ensure a thorough reaction between the wastewater and the catalyst. After the wastewater accumulates inside the outer cylinder 1, the rotating shaft 16 at the bottom of the turntable 9 and multiple transmission rods 19 drive the corresponding turntable 17, scraper 18, and multiple agitator frames 20 to agitate the wastewater, further ensuring uniform mixing. Finally, the solenoid valve 5 is opened, allowing the treated wastewater to be discharged through the outlet pipe 4. The scraping action of the multiple scrapers 18 further facilitates the discharge of the wastewater through the outlet pipe 4, completing the treatment of the high-concentration organic wastewater.

[0021] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0022] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater, comprising an outer cylinder (1), characterized in that: The bottom of the outer cylinder (1) is fixedly connected to a base frame (2), the top of the outer cylinder (1) is fixedly connected to a water inlet pipe (3), the bottom of the outer cylinder (1) is fixedly connected to a water outlet pipe (4), a solenoid valve (5) is installed inside the water outlet pipe (4), a servo motor (6) is installed on the top of the outer cylinder (1), a bracket (7) is fixedly connected to the inner side of the outer cylinder (1), a fixing frame (23) and a fixing frame (21) are fixedly connected to the inner side of the outer cylinder (1), a plurality of lamp tubes (22) are fixedly connected to the top of the fixing frame (21), and a diversion mechanism is installed on the inner side of the outer cylinder (1). The diversion mechanism includes a second bracket (8), the top of which is fixedly connected to the output end of the solenoid valve (5), and a turntable (9) is fixedly connected to the bottom of the second bracket (8), the bottom of which is rotatably connected to the top of the second fixed frame (23). An agitation mechanism is provided on the inner side of the outer cylinder (1).

2. The multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: Multiple guide channels (10) and water outlets (11) are provided on the inner side of the turntable (9), and the guide channels (10) and water outlets (11) are arranged in a ring array on the inner side of the turntable (9).

3. The multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: A storage cylinder (12) is fixedly connected to the outside of the outer cylinder (1). A feed inlet (13) is provided at the top of the storage cylinder (12). A mechanical pump (14) is fixedly connected to the outside of the storage cylinder (12).

4. The multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: The mechanical pump (14) has a liquid infusion pipe (15) fixedly connected to both its output and input ends. One of the liquid infusion pipes (15) passes through the inside of the storage cylinder (12) and extends into the inside of the storage cylinder (12). The other liquid infusion pipe (15) is connected at one end to the top of the outer cylinder (1).

5. The multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: The stirring mechanism includes a rotating shaft (16), one end of which is fixedly connected to the bottom of the turntable (9), the outer side of which is rotatably connected to the inner side of the second fixing frame (23), and the bottom end of which is fixedly connected to the turntable (17).

6. The multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater according to claim 5, characterized in that: The bottom of the turntable (17) is rotatably connected to the inner side of the bracket (7), and multiple scrapers (18) are fixedly connected to the bottom of the turntable (17).

7. The multi-stage photocatalytic oxidation reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: The bottom of the turntable (9) is fixedly connected to multiple transmission rods (19), and multiple agitators (20) are fixedly connected to the outside of the transmission rods (19).

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