Photocatalytic oxidation reactor for sewage treatment

Abstract

The utility model discloses a photocatalytic oxidation reactor for sewage treatment, which belongs to the technical field of oxidation reactors, and comprises a catalytic oxidation barrel, a support plate is fixedly connected outside the catalytic oxidation barrel, a barrel cover is rotatably connected in the support plate, a charging barrel is fixedly connected on the outer surface of the catalytic oxidation barrel, and the charging barrel is rotatably connected with the support plate. And the bottom end of the charging barrel is fixedly connected with a discharging pipe, the outside of the catalytic oxidation barrel is fixedly connected with a conveying pipe, the lower portion of the charging barrel is fixedly connected with an adjusting structure, and the adjusting structure is connected into a clamping block in a clamped mode. According to the oxidation reactor disclosed by the utility model, the adjusting structure, the auxiliary structure, the baffle plate, the bevel gear II and the motor II are arranged, so that a catalyst in the discharging pipe can be quantitatively discharged through the cooperation among the adjusting structure, the auxiliary structure, the bevel gear II and the motor II; the phenomenon of sewage treatment deviation caused by over-high or over-low addition amount of the catalyst is avoided, so that the flexibility of the oxidation reactor is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of oxidation reactor technology, specifically a photocatalytic oxidation reactor for wastewater treatment. Background Technology

[0002] Photocatalytic oxidation technology is an advanced oxidation technology that utilizes photocatalysts to initiate redox reactions under light conditions. It has advantages such as high efficiency, environmental friendliness, and the ability to utilize solar energy. In recent years, this technology has received widespread attention and application in environmental governance, especially in the field of wastewater treatment. Photocatalytic oxidation technology can efficiently degrade organic pollutants, such as dyes, pesticide residues, and recalcitrant organic matter, thus playing an important role in environmental protection and resource recycling. The core principle of a photocatalytic oxidation reactor is that the photocatalyst absorbs light energy to generate photogenerated electrons and holes. These photogenerated electrons and holes react with reactant molecules to undergo redox reactions, thereby catalytically degrading pollutants.

[0003] Existing technologies disclose several utility model patents in the field of oxidation reactor processing technology. Among them, utility model patent CN213112891U discloses a hydraulic cavitation catalytic oxidation reactor for wastewater treatment, comprising a hydraulic cavitation device and a catalytic oxidation tank. An oxidation chamber is fixedly connected to the bottom of the hydraulic cavitation device, and the oxidation chamber is fixedly connected to the top left side of the catalytic oxidation tank. A stirring motor is fixedly connected to the bottom of the catalytic oxidation tank, and stirring blades are fixedly connected to the outer wall of the stirring motor's output shaft. A filter screen is fixedly connected inside the catalytic oxidation tank, and a solenoid valve is fixedly connected to the outer wall of the right side of the catalytic oxidation tank. A cooling motor is fixedly connected to the bottom of the tank cover, and cooling holes are provided at the bottom of the tank cover. In this utility model, by fixing a stirring motor to the bottom of the catalytic oxidation tank and fixing stirring blades to the outer wall of the stirring motor's output shaft, cavitated wastewater enters the catalytic oxidation tank. Activating the stirring motor causes the stirring blades to rotate, stirring the cavitated wastewater and improving the catalytic oxidation efficiency.

[0004] However, the above methods still have the following drawbacks in actual use: it is difficult to control the catalyst in the feed of the oxidation reactor, which can easily lead to excessive or insufficient catalyst addition. The former causes waste of resources and potential environmental risks, while the latter reduces reaction efficiency and makes it difficult to achieve the expected treatment effect, thereby reducing the flexibility of the oxidation reactor. Utility Model Content

[0005] The purpose of this invention is to provide a photocatalytic oxidation reactor for wastewater treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a photocatalytic oxidation reactor for wastewater treatment, comprising a catalytic oxidation tank, a support plate fixedly connected to the outside of the catalytic oxidation tank, a tank cover rotatably connected inside the support plate, a material cylinder fixedly connected to the outer surface of the catalytic oxidation tank, a feed pipe fixedly connected to the bottom end of the material cylinder, a conveying pipe fixedly connected to the outside of the catalytic oxidation tank, an adjusting structure fixedly connected below the material cylinder, the adjusting structure being engaged in a locking block, a baffle fixedly connected to one side of the locking block, a bevel gear rotatably connected to one side of the baffle, and a fixed... A second motor is connected to the feed pipe. An auxiliary structure is provided inside the feed pipe. An adjusting structure is connected to the feed pipe. A second bevel gear meshes with the auxiliary structure. A snap-fit ​​structure is provided on the adjusting structure. The snap-fit ​​structure snaps into a snap-fit ​​block. The adjusting structure includes a fixed plate, a first threaded rod, and a second threaded rod. A first motor is connected to one side of the fixed plate. An anti-slip strip is externally connected to the first threaded rod. A moving block is externally threaded to the second threaded rod. The auxiliary structure includes a guide rod, a fixed disc, and a coil spring. A first bevel gear is fixedly connected to one end of the guide rod. A sealing valve is fixedly connected to the outer surface of the guide rod.

[0007] As a further preferred embodiment of this technical solution, the catalytic oxidation tank is externally connected to a latch, which engages with the tank lid; the feed pipe is connected to the outside of the catalytic oxidation tank; the output shaft of the second motor is connected to the second bevel gear; and the baffle is slidably connected inside the feed pipe.

[0008] As a further preferred embodiment of this technical solution, the fixing plate is fixedly connected inside the material cylinder, one end of the first threaded rod is rotatably connected to one side of the fixing plate, one end of the second threaded rod is rotatably connected to the other side of the fixing plate, and the other end of the first threaded rod is rotatably connected to the outside of the feed pipe.

[0009] As a further preferred embodiment of this technical solution, the other end of the second threaded rod is rotatably connected to the outside of the feed pipe, the output shaft of the first motor is connected to the first threaded rod, the first threaded rod is connected to the second threaded rod through an anti-slip strip, and the locking block is locked inside the moving block.

[0010] As a further preferred embodiment of this technical solution, the guide rod is rotatably connected inside the feed tube, the fixed plate is fixedly connected to the other end of the guide rod, the coil spring is sleeved on the outside of the guide rod, the fixed plate is fixedly connected to the outside of the feed tube through the coil spring, and the first bevel gear meshes with the second bevel gear.

[0011] As a further preferred embodiment of this technical solution, the snap-fit ​​structure includes a sleeve plate, which is fixedly connected above the movable block, and an inclined block is slidably connected inside the sleeve plate, the inclined block being snapped into the snap-fit ​​block.

[0012] As a further preferred embodiment of this technical solution, a fixing post is fixedly connected above the inclined block, a limiting plate is fixedly connected to one end of the fixing post, a spring is sleeved on the fixing post, and the limiting plate is connected to the sleeve plate through the spring.

[0013] This invention provides a photocatalytic oxidation reactor for wastewater treatment, which has the following beneficial effects:

[0014] (1) This utility model, by setting an adjustment structure, an auxiliary structure, a baffle, a second bevel gear, and a second motor, allows the catalyst to accumulate above the sealing valve during the feeding process. The first threaded rod is driven to rotate by the first motor, and the first threaded rod is connected to the second threaded rod through an anti-slip strip. The first and second threaded rods move synchronously, and the moving block drives the baffle to move inside the feeding pipe. When the baffle moves to the appropriate position, the second bevel gear will contact the first bevel gear, and the sealing valve will flip around the guide rod. Through the coordination between the adjustment structure, the auxiliary structure, the second bevel gear, and the second motor, the oxidation reactor can quantitatively feed the catalyst in the feeding pipe, avoiding deviations in wastewater treatment caused by excessive or insufficient catalyst dosage, thus ensuring the flexibility of the oxidation reactor.

[0015] (2) By setting a snap-fit ​​structure, the baffle is snapped into the moving block by a snap-fit ​​block, and the inclined side above the baffle will contact the inclined block. When the inclined block is affected by the pushing force, it will drive the fixed column to slide. When the limit plate slides, it will drive the spring to deform. When the snap-fit ​​block and the moving block are fully snapped, the inclined block will snap into the snap-fit ​​block after being reset by the spring. This enables the baffle and the moving block to achieve the function of quick assembly, and facilitates the replacement or maintenance of the baffle in the future. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the material cylinder of this utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional schematic diagram of the auxiliary structure of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the snap-fit ​​structure of this utility model.

[0020] In the diagram: 1. Catalytic oxidation tank; 2. Material cylinder; 3. Feed pipe; 4. Conveying pipe; 5. Adjustment structure; 501. Fixing plate; 502. First threaded rod; 503. Second threaded rod; 504. Motor 1; 505. Anti-slip strip; 506. Moving block; 6. Auxiliary structure; 601. Guide rod; 602. Bevel gear 1; 603. Sealing valve; 604. Fixing disc; 605. Coil spring; 7. Snap-fit ​​structure; 701. Sleeve plate; 702. Inclined block; 703. Fixing column; 704. Limiting disc; 705. Spring; 8. Support plate; 9. Tank lid; 10. Lock; 11. Baffle; 12. Bevel gear 2; 13. Motor 2; 14. Locking block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown in this embodiment, a photocatalytic oxidation reactor for wastewater treatment includes a catalytic oxidation tank 1. A support plate 8 is fixedly connected to the outside of the catalytic oxidation tank 1, and a tank cover 9 is rotatably connected inside the support plate 8. A material cylinder 2 is fixedly connected to the outer surface of the catalytic oxidation tank 1, and a discharge pipe 3 is fixedly connected to the bottom end of the material cylinder 2. A conveying pipe 4 is fixedly connected to the outside of the catalytic oxidation tank 1. An adjustment structure 5 is fixedly connected to the bottom of the material cylinder 2. The adjustment structure 5 is engaged in a locking block 14. A baffle 11 is fixedly connected to one side of the locking block 14, and a bevel gear 12 is rotatably connected to one side of the baffle 11. A motor 13 is fixedly connected to the top of the baffle 11. An auxiliary structure 6 is provided inside the discharge pipe 3 for adjustment. Structure 5 is connected to the feed pipe 3, bevel gear 12 meshes with auxiliary structure 6, and adjustment structure 5 is provided with snap-fit ​​structure 7, which snaps into the snap-fit ​​block 14. Adjustment structure 5 includes a fixed plate 501, a first threaded rod 502 and a second threaded rod 503. One side of the fixed plate 501 is connected to a motor 504. The first threaded rod 502 is externally connected to an anti-slip belt 505. The second threaded rod 503 is externally threaded to a moving block 506. Auxiliary structure 6 includes a guide rod 601, a fixed plate 604 and a coil spring 605. One end of the guide rod 601 is fixedly connected to a bevel gear 602, and the outer surface of the guide rod 601 is fixedly connected to a sealing valve 603.

[0023] like Figure 1 and Figure 3As shown, a latch 10 is connected to the outside of the catalytic oxidation tank 1, and the latch 10 is engaged with the tank cover 9. The feed pipe 3 is connected to the outside of the catalytic oxidation tank 1. The output shaft of the second motor 13 is connected to the second bevel gear 12. The baffle 11 is slidably connected inside the feed pipe 3. The fixing plate 501 is fixedly connected inside the material cylinder 2. One end of the first threaded rod 502 is rotatably connected to one side of the fixing plate 501. One end of the second threaded rod 503 is rotatably connected to the other side of the fixing plate 501. The other end of the first threaded rod 502 is rotatably connected to the outside of the feed pipe 3. The other end of 03 is rotatably connected to the outside of the feed tube 3. The output shaft of motor 1 504 is connected to the first threaded rod 502. The first threaded rod 502 is connected to the second threaded rod 503 through the anti-slip strip 505. The locking block 14 is locked in the moving block 506. The guide rod 601 is rotatably connected to the inside of the feed tube 3. The fixed plate 604 is fixedly connected to the other end of the guide rod 601. The coil spring 605 is sleeved on the outside of the guide rod 601. The fixed plate 604 is fixedly connected to the outside of the feed tube 3 through the coil spring 605. The first bevel gear 602 meshes with the second bevel gear 12.

[0024] By setting a guide rod 601, bevel gear 1 602 meshes with bevel gear 2 12. When motor 2 13 drives bevel gear 2 12 to rotate, the guide rod 601 will rotate with bevel gear 1 602. The sealing valve 603 will rotate around the guide rod 601, so that the guide rod 601 plays a certain auxiliary role in the rotation of the sealing valve 603, and avoids the sealing valve 603 from jamming when it flips.

[0025] By setting up a coil spring 605, when the guide rod 601 is affected by the rotational force, the fixed plate 604 at one end of the guide rod 601 will drive the coil spring 605 to deform, and the sealing valve 603 will also flip accordingly. When the guide rod 601 loses resistance, the sealing valve 603 will return to its original position through the action of the coil spring 605, so that the coil spring 605 plays a certain role in limiting the position of the sealing valve 603 and preventing the sealing valve 603 from bumping during rotation.

[0026] like Figure 4 As shown, the snap-fit ​​structure 7 includes a sleeve plate 701, which is fixedly connected above the moving block 506. An inclined block 702 is slidably connected inside the sleeve plate 701. The inclined block 702 is snapped into the snap-fit ​​block 14. A fixing post 703 is fixedly connected above the inclined block 702. A limiting plate 704 is fixedly connected to one end of the fixing post 703. A spring 705 is sleeved on the fixing post 703. The limiting plate 704 is connected to the sleeve plate 701 through the spring 705.

[0027] By setting the sleeve 701, when the inclined edge above the baffle 11 contacts the inclined block 702, the inclined block 702 will slide inside the sleeve 701 when it is subjected to the thrust, so that the sleeve 701 plays a certain guiding role in the movement of the inclined block 702 and avoids the phenomenon of the inclined block 702 shifting its position when it moves.

[0028] This invention provides a photocatalytic oxidation reactor for wastewater treatment, the specific working principle of which is as follows:

[0029] When the baffle 11 is assembled with the movable block 506, the baffle 11 can be snapped into the movable block 506 by the snap block 14. The inclined edge above the baffle 11 will contact the inclined block 702. When the inclined block 702 is subjected to the pushing force, it will drive the fixed column 703 to slide in the sleeve 701. When the limit plate 704 slides, it will drive the spring 705 to deform. When the snap block 14 is fully snapped into the movable block 506, the inclined block 702 will be snapped into the snap block 14 after being reset by the spring 705.

[0030] When the oxidation reactor processes wastewater, the catalyst inside the feed cylinder 2 is conveyed to the catalytic oxidation tank 1 through the feed pipe 3. During the feeding process, the catalyst accumulates above the sealing valve 603. Then, the motor 504 drives the first threaded rod 502 to rotate. The first threaded rod 502 is connected to the second threaded rod 503 through the anti-slip strip 505. The first threaded rod 502 and the second threaded rod 503 move synchronously, and the moving block 506 drives the baffle 11 to move downwards. The material tube 3 moves inside. When the baffle 11 moves to the appropriate position, the second bevel gear 12 will contact the first bevel gear 602. The second motor 13 drives the second bevel gear 12 to rotate. The sealing valve 603 will flip around the guide rod 601. The fixed plate 604 will drive the coil spring 605 to deform. Then the catalyst in the area above the sealing valve 603 and below the baffle 11 will fall into the catalytic oxidation tank 1. When the baffle 11 is restored, the sealing valve 603 will be reset by the coil spring 605 when it loses resistance.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photocatalytic oxidation reactor for wastewater treatment, comprising a catalytic oxidation tank (1), characterized in that: A support plate (8) is fixedly connected to the outside of the catalytic oxidation tank (1). A tank cover (9) is rotatably connected inside the support plate (8). A material cylinder (2) is fixedly connected to the outer surface of the catalytic oxidation tank (1). A discharge pipe (3) is fixedly connected to the bottom end of the material cylinder (2). A conveying pipe (4) is fixedly connected to the outside of the catalytic oxidation tank (1). An adjustment structure (5) is fixedly connected to the bottom of the material cylinder (2). The adjustment structure (5) is snapped into a locking block (14). A baffle (11) is fixedly connected to one side of the locking block (14). A bevel gear (12) is rotatably connected to one side of the baffle (11). A motor (13) is fixedly connected to the top of the baffle (11). An auxiliary structure (6) is provided inside the discharge pipe (3). The adjustment structure (5) is connected to the discharge pipe (3). Gear 2 (12) meshes with auxiliary structure (6). The adjustment structure (5) is provided with a snap-fit ​​structure (7), which snaps into the snap-fit ​​block (14). The adjustment structure (5) includes a fixed plate (501), a first threaded rod (502), and a second threaded rod (503). One side of the fixed plate (501) is connected to a motor 1 (504). The first threaded rod (502) is externally connected to an anti-slip belt (505). The second threaded rod (503) is externally threaded to a moving block (506). The auxiliary structure (6) includes a guide rod (601), a fixed plate (604), and a coil spring (605). One end of the guide rod (601) is fixedly connected to a bevel gear 1 (602), and the outer surface of the guide rod (601) is fixedly connected to a sealing valve (603).

2. The photocatalytic oxidation reactor for wastewater treatment according to claim 1, characterized in that: The catalytic oxidation tank (1) is connected to a latch (10), which is engaged with the tank cover (9). The feed pipe (3) is connected to the outside of the catalytic oxidation tank (1). The output shaft of the second motor (13) is connected to the second bevel gear (12). The baffle (11) is slidably connected inside the feed pipe (3).

3. The photocatalytic oxidation reactor for wastewater treatment according to claim 1, characterized in that: The fixing plate (501) is fixedly connected inside the material cylinder (2). One end of the first threaded rod (502) is rotatably connected to one side of the fixing plate (501), one end of the second threaded rod (503) is rotatably connected to the other side of the fixing plate (501), and the other end of the first threaded rod (502) is rotatably connected to the outside of the feed pipe (3).

4. The photocatalytic oxidation reactor for wastewater treatment according to claim 1, characterized in that: The other end of the second threaded rod (503) is rotatably connected to the outside of the feed tube (3). The output shaft of the motor (504) is connected to the first threaded rod (502). The first threaded rod (502) is connected to the second threaded rod (503) through the anti-slip strip (505). The locking block (14) is locked in the moving block (506).

5. The photocatalytic oxidation reactor for wastewater treatment according to claim 1, characterized in that: The guide rod (601) is rotatably connected inside the feed tube (3), the fixed plate (604) is fixedly connected to the other end of the guide rod (601), the coil spring (605) is sleeved on the outside of the guide rod (601), the fixed plate (604) is fixedly connected to the outside of the feed tube (3) through the coil spring (605), and the first bevel gear (602) meshes with the second bevel gear (12).

6. The photocatalytic oxidation reactor for wastewater treatment according to claim 1, characterized in that: The snap-fit ​​structure (7) includes a sleeve plate (701), which is fixedly connected above the moving block (506). An inclined block (702) is slidably connected inside the sleeve plate (701), and the inclined block (702) is snapped into the snap-fit ​​block (14).

7. A photocatalytic oxidation reactor for wastewater treatment according to claim 6, characterized in that: A fixed post (703) is fixedly connected above the inclined block (702). A limiting plate (704) is fixedly connected to one end of the fixed post (703). A spring (705) is sleeved on the fixed post (703). The limiting plate (704) is connected to the sleeve plate (701) through the spring (705).

Images