A two-phase catalytic oxidation reaction column and a process for treating industrial wastewater using the column

Abstract

The application discloses a two-phase catalytic oxidation reaction tower and a process for treating industrial wastewater by using the tower, and particularly relates to the wastewater treatment field, which comprises a base, a tower body, a water inlet pipe and a drain pipe, the base is provided with the tower body, one side of the base is provided with the water inlet pipe communicated with the tower body, one side of the top end of the tower body is connected with the drain pipe, the first receiving cylinder and the second receiving cylinder are symmetrically arranged in the middle part of the tower body, the cleaning mechanism is arranged on the first receiving cylinder and the second receiving cylinder in cooperation, the containing assembly is arranged in the tower body, the containing assembly is arranged in cooperation with the first receiving cylinder and the second receiving cylinder, and the electric cylinder is arranged at the end of the second receiving cylinder. The application has the advantages that the solid two-phase catalyst can be automatically replaced and used, the replaced solid two-phase catalyst can be automatically cleaned, the surface of the catalyst is prevented from being attached by dirt, the catalyst can be reused, the catalytic effect is guaranteed, and the effect and efficiency of the wastewater treatment are improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to a two-phase catalytic oxidation reaction tower and a process for treating industrial wastewater using the tower. Background Technology

[0002] The selection of wastewater treatment technology should be based on a comprehensive consideration of multiple factors, such as the design influent water quality, treatment requirements, land area, and project scale. Each technology has its applicable conditions and should be selected according to the specific circumstances.

[0003] In wastewater treatment, commonly used technologies such as coagulation sedimentation, biochemical reactions, and adsorption separation often fail to achieve ideal results. This is mainly because wastewater contains substances with high pollutant concentrations, complex structures, stable chemical properties, and difficulty in biodegradation. Currently, catalytic oxidation technology is widely used both domestically and internationally to treat this type of wastewater.

[0004] In the prior art, such as the utility model patent with patent application publication number CN213771465U, an advanced oxidation catalytic wastewater treatment device is disclosed. This device includes a catalytic reaction tower body and a hollow internal chamber. Two symmetrical connecting pipes are fixedly connected to the bottom of the circumferential surface of the catalytic reaction tower body and communicate with its interior. The ends of the two connecting pipes furthest from the catalytic reaction tower body are respectively connected to the two sides of the chamber. A water pump with an outlet connected to the inside of the chamber is fixedly installed inside the chamber, and one end of one of the connecting pipes is inserted into the inlet of the water pump. A stirring rod is installed inside the chamber to agitate the wastewater inside. This utility model, through the water pump and stirring rod installed inside the chamber, allows the wastewater to circulate through the water pump, and the stirring rod agitates the wastewater within the chamber, enabling faster oxidation and decomposition of organic matter and improving the efficiency of wastewater treatment.

[0005] However, in practical use, the catalyst inside the catalytic reaction tower needs to be used continuously during the wastewater treatment process. This invention provides a solid two-phase catalyst. When the solid two-phase catalyst is used continuously, impurities in the wastewater are easily attached to the surface of the catalyst, which affects the catalytic effect and leads to a deterioration in the wastewater treatment effect. Therefore, this invention proposes a two-phase catalytic oxidation reaction tower that can use a solid two-phase catalyst for catalysis and is easy to replace and clean, thereby ensuring catalytic efficiency and improving the wastewater treatment effect, as well as a process for using the tower to treat industrial wastewater. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a two-phase catalytic oxidation reaction tower and a process for treating industrial wastewater using the tower, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a two-phase catalytic oxidation reaction tower, comprising a base, a tower body, an inlet pipe, and a drain pipe. The tower body is mounted on the base, and an inlet pipe communicating with the tower body is provided on one side of the base. A drain pipe is connected to one side of the top of the tower body. A first and a second receiving cylinder are symmetrically mounted in the middle of the tower body. A cleaning mechanism is installed on both the first and second receiving cylinders. A holding assembly is installed inside the tower body, and the holding assembly is configured to cooperate with the first and second receiving cylinders. An electric cylinder is installed at the end of the second receiving cylinder, and the output end of the electric cylinder is rotatably connected to one end of the holding assembly. A rotating mechanism is installed at the end of the first receiving cylinder, and the rotating mechanism is configured to cooperate with the other end of the holding assembly. Outer casings are symmetrically welded on both sides of the tower body, and a sealing assembly is installed inside each outer casing.

[0008] The electric cylinder pushes one end of the holding component into the tower body. Simultaneously, the sealing components in the two outer casings operate to seal the gaps on both sides of the holding component within the tower body. This ensures that when wastewater enters the tower body, it is catalyzed by the solid two-phase catalyst inside the holding component. The wastewater then enters the tower body through the inlet pipe, where it undergoes catalytic oxidation by the solid two-phase catalyst, treating the wastewater. The treated wastewater is discharged through the drain pipe. After prolonged use, the sealing components in the second holding cylinder of the main catalytic reactor at one end of the holding component reset. In conjunction with the electric cylinder, the second holding cylinder is pushed into the first receiving cylinder. The gear and rotating mechanism mesh, assisting the first holding cylinder in entering the tower body. The sealing components then... The gaps on both sides of the first receiving cylinder are sealed to ensure continuous catalysis and thus ensure continuous wastewater treatment, avoiding downtime. The cleaning and rotating mechanisms on the first receiving cylinder operate synchronously, causing the first and second receiving cylinders to rotate in sync. This cleans the surface of the solid catalyst inside the second receiving cylinder. After cleaning, the second receiving cylinder re-enters the tower to continue the catalytic reaction, while the first receiving cylinder enters the second receiving cylinder and is rinsed by the cleaning mechanism installed on the second receiving cylinder. This cycle is repeated, so that the solid catalyst inside the second receiving cylinder is used primarily for catalytic oxidation, while the solid catalyst in the first receiving cylinder is used for auxiliary catalysis.

[0009] Preferably, a first retaining ring and a second retaining ring are respectively installed on the inner wall of the first and second storage cylinders connected to the tower body, and the first and second retaining rings are both configured to cooperate with the holding component.

[0010] Preferably, the cleaning mechanism includes a spray box, and the top of the first and second storage cylinders are both provided with spray boxes, and spray pipes are installed inside the spray boxes;

[0011] A water pump is installed on the top of the spray box, and the output end of the water pump is connected to one end of the spray pipe.

[0012] Waste discharge pipe, which is installed at the bottom of the corresponding first and second collection cylinders, and is equipped with a solenoid valve electrically connected to the water pump.

[0013] Preferably, a sealing plate is installed at the end of the first storage tube, and a through hole is opened in the middle of the sealing plate, which is inserted into one end of the holding component.

[0014] Preferably, a support frame is mounted on the sealing plate, and a rotating mechanism is mounted on the support frame, with the rotating mechanism located on one side of the through hole.

[0015] Preferably, the sealing assembly includes a hydraulic pump, which is mounted on the outer casing;

[0016] A hydraulic rod, one end of which is connected to the output end of a hydraulic pump;

[0017] A sealing plate is slidably fitted with the inner wall of the outer casing, and the sealing plate is connected to the other end of the hydraulic rod.

[0018] Preferably, the rotating mechanism includes a motor, which is mounted on a support frame;

[0019] A rotating rod, one end of which is connected to the output end of a motor;

[0020] A drive gear is mounted on the other end of the rotating rod.

[0021] Preferably, the holding assembly includes a connecting rod, one end of which is connected to the output end of the electric cylinder, and the other end of which is fixedly connected to a gear, the gear being configured to cooperate with a drive gear;

[0022] The first container is coaxially mounted on the connecting rod;

[0023] The second container is installed at one end of the first container;

[0024] A first baffle is installed at the other end of the first container.

[0025] The second baffle is installed between the first container and the second container;

[0026] A third baffle is installed at the other end of the second container.

[0027] The first and second containers are used to hold solid two-phase catalysts.

[0028] Preferably, sealing gaskets are installed on the inner sides of the first and third baffles and on both sides of the second baffle.

[0029] A process for treating industrial wastewater using this tower, comprising the following steps:

[0030] S1: The second container is pulled into the tower body by operating the electric cylinder;

[0031] S2: The sealing components inside the two outer boxes operate synchronously to seal the gaps between the two sides of the second container and the inner wall of the tower.

[0032] S3: Then the wastewater is introduced into the tower body through the inlet pipe, and is catalytically oxidized by the solid two-phase catalyst in the second container to treat the wastewater. The treated wastewater is discharged from the drain pipe.

[0033] S4: After prolonged use, the solid two-phase catalyst in the second container is repositioned and, in conjunction with the electric cylinder, pushes the second container into the first receiving container. The rack meshes with the rotating mechanism, and the first container enters the tower body. The sealing component then seals the gaps on both sides of the first container again for continuous catalysis.

[0034] S5: The cleaning mechanism and the rotating mechanism on the first storage tube operate synchronously so that the first and second storage tubes rotate synchronously so that the surface of the solid catalyst inside the second storage tube is cleaned.

[0035] S6: After the surface of the solid catalyst in the second container is cleaned, the second container re-enters the tower to continue the catalytic reaction in conjunction with the electric cylinder, while the first container enters the second receiving container and is rinsed by the cleaning mechanism installed on the second receiving container.

[0036] S7: In this way, the cycle is carried out, so that the solid catalyst inside the second container is used as the main catalyst for oxidation, while the solid catalyst inside the first container is used as an auxiliary catalyst.

[0037] The technical effects and advantages of this invention are as follows:

[0038] By installing cleaning mechanisms on both storage boxes, compared with the existing technology, by adjusting the positions of the first and second storage boxes, the storage boxes in the storage boxes can be cleaned during the selection of the backup catalyst. This allows for surface cleaning of the solid catalyst with dirt adhering to its surface, ensuring that the solid catalyst is in a clean state during use, thereby improving catalytic efficiency and catalytic effect, and thus improving the effect of wastewater treatment.

[0039] By setting up an outer casing, hydraulic pump, hydraulic rod, and sealing plate, compared with the existing technology, the gaps on both sides of the holding components inside the tower can be sealed by adjusting the position of the sealing plate. This ensures that all wastewater entering the tower flows out through the inside of the holding components, thereby guaranteeing the catalysis of the wastewater and making the wastewater treatment more thorough.

[0040] By using a motor, a rotating rod, a drive gear, and a rack mounted at the end of the holding assembly, compared with existing technologies, the catalyst can be rotated during cleaning, thereby improving the cleaning effect and making the dirt on the catalyst surface more thoroughly cleaned. This results in improved catalytic efficiency of the catalyst for wastewater during use.

[0041] By using a connecting rod, two holding cylinders, and multiple baffles and retaining rings, compared with existing technologies, the two holding cylinders can hold both primary and secondary solid-phase catalysts. This allows for adjustment and replacement with the help of an electric cylinder. After adjustment, the two holding cylinders can be sealed with the help of baffles and retaining rings, thus preventing wastewater from entering and causing pollution. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0043] Figure 2 This is a side view of the three-dimensional structure of the present invention.

[0044] Figure 3 This is a schematic diagram of the internal structure of the tower body of the present invention.

[0045] Figure 4 This is a schematic diagram of the connection structure between the electric cylinder and the holding assembly of the present invention.

[0046] Figure 5 This is a schematic diagram of the structure of the holding component of the present invention.

[0047] Figure 6 This is a schematic diagram of the rotating mechanism of the present invention.

[0048] Figure 7 This is a schematic diagram of the sealing component of the present invention.

[0049] The attached diagram is labeled as follows: 1. Base; 2. Tower body; 3. Water inlet pipe; 4. Drain pipe; 5. First storage cylinder; 6. Second storage cylinder; 7. Cleaning mechanism; 701. Spray box; 702. Water pump; 703. Waste discharge pipe; 8. Electric cylinder; 9. Outer casing; 10. Sealing assembly; 1001. Hydraulic pump; 1002. Hydraulic rod; 1003. Sealing plate; 11. Rotating mechanism; 1101. Motor; 1102. Rotating rod; 1103. Drive gear; 12. Container assembly; 1201. Connecting rod; 1202. First container; 1203. Second container; 1204. First baffle; 1205. Second baffle; 1206. Third baffle; 13. First retaining ring; 14. Second retaining ring; 15. Gear; 16. Support frame. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] As attached Figure 1-7 The illustrated two-phase catalytic oxidation reaction tower includes a base 1, a tower body 2, an inlet pipe 3, and a drain pipe 4. The tower body 2 is mounted on the base 1. The inlet pipe 3, communicating with the tower body 2, is located on one side of the base 1. The drain pipe 4 is connected to one side of the top of the tower body 2. A first receiving cylinder 5 and a second receiving cylinder 6 are symmetrically mounted in the middle of the tower body 2. Cleaning mechanisms 7 are installed on both the first receiving cylinder 5 and the second receiving cylinder 6. A holding assembly 12 is installed inside the tower body 2. The holding assembly 12 is configured to cooperate with the first receiving cylinder 5 and the second receiving cylinder 6. An electric cylinder 8 is installed at the end of the second receiving cylinder 6. The output end of the electric cylinder 8 is rotatably connected to one end of the holding assembly 12. An electric cylinder 8 is installed at the end of the first receiving cylinder 5. A rotating mechanism 11 is provided, which is configured to cooperate with the other end of the holding component 12. The tower body 2 is symmetrically welded with outer boxes 9 on both sides. Each outer box 9 is equipped with a sealing component 10. The first storage cylinder 5 and the second storage cylinder 6 are respectively installed on the inner wall connected to the tower body 2 with a first retaining ring 13 and a second retaining ring 14. The first retaining ring 13 and the second retaining ring 14 are configured to cooperate with the holding component 12. A sealing plate is installed at the end of the first storage cylinder 5. A through hole is opened in the middle of the sealing plate. The through hole is inserted and cooperates with one end of the holding component 12. A support frame 16 is installed on the sealing plate. The rotating mechanism 11 is installed on the support frame 16. The rotating mechanism 11 is located on one side of the through hole.

[0052] In specific implementation, the electric cylinder 8 operates to push one end of the holding component 12 into the tower body 2. Simultaneously, the sealing components 10 in the two outer casings 9 operate to seal the gaps on both sides of the holding component 12 in the tower body 2. This ensures that when wastewater enters the tower body 2, it is catalyzed by the solid two-phase catalyst inside the holding component 12. The wastewater is then introduced into the tower body 2 through the inlet pipe 3 and catalytically oxidized by the solid two-phase catalyst. The treated wastewater is discharged through the drain pipe 4. After prolonged use, the sealing component 10 resets the solid two-phase catalyst in the second holding cylinder 1203 at one end of the holding component 12. In conjunction with the electric cylinder 8, the second holding cylinder 1203 is pushed into the first receiving cylinder 5. The toothed rod 15 meshes with the rotating mechanism 11, assisting the first holding cylinder 1202 into the tower body 2. The sealing component 10... The gaps on both sides of the first container 1202 are sealed again to ensure continuous catalysis and thus ensure continuous wastewater treatment and avoid downtime. The cleaning mechanism 7 and the rotating mechanism 11 on the first receiving container 5 operate synchronously so that the first container 1202 and the second container 1203 rotate synchronously. This cleans the surface of the solid catalyst inside the second container 1203. After the surface of the solid catalyst inside the second container 1203 is cleaned, the second container 1203 re-enters the tower body 2 with the help of the electric cylinder 8 to continue the catalytic reaction, while the first container 1202 enters the second receiving container 6 and is rinsed by the cleaning mechanism 7 installed on the second receiving container 6. This cycle is repeated so that the solid catalyst inside the second container 1203 is used for primary catalytic oxidation, while the solid catalyst in the first container 1202 is used for auxiliary catalysis.

[0053] As attached Figure 2 As shown, the cleaning mechanism 7 includes a spray box 701. The top of the first storage cylinder 5 and the second storage cylinder 6 are both provided with spray boxes 701, and spray pipes are installed inside the spray box 701.

[0054] A water pump 702 is installed on the top of the spray box 701, and the output end of the water pump 702 is connected to one end of the spray pipe.

[0055] Waste discharge pipe 703 is installed at the bottom of the corresponding first storage cylinder 5 and second storage cylinder 6, and a solenoid valve electrically connected to the water pump 702 is installed on the waste discharge pipe 703.

[0056] In practice, when the cleaning mechanism 7 is running, the water pump 702 draws clean water into the spray pipe in the spray box 701 and sprays it into the second holding cylinder 1203 and the first holding cylinder 1202 in the corresponding first receiving cylinder 5 or second receiving cylinder 6 for cleaning. At the same time, the solenoid valve opens the waste discharge pipe 703, allowing the sewage to be discharged from the waste discharge pipe 703. This can clean the stains attached to the surface of the solid two-phase catalyst, ensure the cleanliness of the surface of the solid two-phase catalyst, and thus ensure the catalytic effect and improve the efficiency and effect of wastewater treatment.

[0057] As attached Figure 7 As shown, the sealing assembly 10 includes a hydraulic pump 1001, which is mounted on the outer casing 9;

[0058] Hydraulic rod 1002, one end of which is connected to the output end of hydraulic pump 1001;

[0059] The sealing plate 1003 is slidably fitted with the inner wall of the outer casing 9, and the sealing plate 1003 is connected to the other end of the hydraulic rod 1002.

[0060] In practice, the operation of the hydraulic pump 1001 enables the hydraulic rod 1002 to push and pull the sealing plate 1003, thereby sealing the gaps on both sides of the holding component 12 inside the tower body 2. This allows all wastewater entering the tower body 2 to pass through the holding component 12 and be catalyzed by the solid two-phase catalyst inside the holding component 12, thus improving the thoroughness of wastewater treatment. When the sealing plate 1003 is pulled back into the outer box 9, the position of the holding component 12 can be easily adjusted.

[0061] As attached Figure 6 As shown, the rotating mechanism 11 includes a motor 1101, which is mounted on the support frame 16;

[0062] Rotary rod 1102, one end of which is connected to the output end of motor 1101;

[0063] A drive gear 1103 is mounted on the other end of the rotating rod 1102.

[0064] In practice, the operation of the motor 1101 causes the rotating rod 1102 to rotate, which in turn causes the drive gear 1103 to mesh with the toothed rod 15 inserted into the through hole and rotate, thereby driving the two containers to rotate. This improves the thoroughness of cleaning the containers and facilitates the removal of deposits adhering to the surface of the solid two-phase catalyst.

[0065] As attached Figure 4 and Figure 5As shown, the holding assembly 12 includes a connecting rod 1201. One end of the connecting rod 1201 is connected to the output end of the electric cylinder 8, and the other end of the connecting rod 1201 is fixedly connected to a rack 15. The rack 15 is configured to cooperate with the drive gear 1103.

[0066] The first container 1202 is coaxially mounted on the connecting rod 1201;

[0067] The second container 1203 is installed at one end of the first container 1202;

[0068] The first baffle 1204 is installed at the other end of the first container 1202;

[0069] The second baffle 1205 is installed between the first container 1202 and the second container 1203;

[0070] The third baffle 1206 is installed at the other end of the second container 1203;

[0071] The first container 1202 and the second container 1203 are used to hold solid two-phase catalysts.

[0072] Sealing gaskets are installed on the inner sides of the first baffle 1204 and the third baffle 1206, as well as on both sides of the second baffle 1205.

[0073] In practice, the operation of the electric cylinder 8 can move the connecting rod 1201, thereby pushing the second holding cylinder 1203 into the first receiving cylinder 5 and pulling the first holding cylinder 1202 into the second receiving cylinder 6. This allows for the adjustment of the solid two-phase catalyst. During the adjustment process, the first baffle 1204 can cooperate with the second baffle ring 14 for sealing, the second baffle 1205 can cooperate with the inner side of the first baffle ring 13 and the second baffle ring 14 for sealing, and the third baffle 1206 can cooperate with the outer side of the second baffle ring 14 for sealing. This ensures the sealing of the first receiving cylinder 5 and the second receiving cylinder 6 when adjusting the two standby solid catalysts, thus preventing continuous pollution of the first receiving cylinder 5 and the second receiving cylinder 6 by wastewater.

[0074] A process for treating industrial wastewater using this tower, comprising the following steps:

[0075] S1: The second container 1203 is pulled into the tower body 2 by operating the electric cylinder 8;

[0076] S2: The sealing components 10 inside the two outer boxes 9 operate synchronously to seal the gaps between the two sides of the second container 1203 and the inner wall of the tower body 2;

[0077] S3: Then the wastewater is introduced into the tower body 2 through the inlet pipe 3 and catalytically oxidized by the solid two-phase catalyst in the second container 1203 to treat the wastewater. The treated wastewater is discharged from the drain pipe 4.

[0078] S4: After the solid two-phase catalyst in the second container 1203 has been used for a long time, the sealing component 10 is reset and operates in conjunction with the electric cylinder 8 to push the second container 1203 into the first receiving cylinder 5. The toothed rod 15 is engaged with the rotating mechanism 11, and the first container 1202 enters the tower body 2. The sealing component 10 seals the gaps on both sides of the first container 1202 again to carry out continuous catalysis.

[0079] S5: The cleaning mechanism 7 and the rotating mechanism 11 on the first storage cylinder 5 operate synchronously so that the first holding cylinder 1202 and the second holding cylinder 1203 rotate synchronously so that the surface of the solid catalyst inside the second holding cylinder 1203 is cleaned.

[0080] S6: After the surface of the solid catalyst in the second container 1203 is cleaned, the second container 1203 enters the tower body 2 again to continue the catalytic reaction in conjunction with the electric cylinder 8, while the first container 1202 enters the second receiving container 6 and is rinsed by the cleaning mechanism 7 installed on the second receiving container 6.

[0081] S7: In this way, the cycle is carried out, so that the solid catalyst inside the second container 1203 is used as the main catalyst for oxidation, while the solid catalyst inside the first container 1202 is used as an auxiliary catalyst.

[0082] This invention enables automatic replacement of solid two-phase catalysts and automatic cleaning of the replaced solid two-phase catalysts, thereby preventing surface contamination and allowing for reuse while ensuring catalytic effect, thus improving the effectiveness and efficiency of wastewater treatment.

[0083] Finally, the following points should be noted: First, in the description of this invention, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the object being described changes, the relative positional relationship may change.

[0084] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0085] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A two-phase catalytic oxidation reaction tower, comprising a base (1), a tower body (2), an inlet pipe (3), and a drain pipe (4), wherein the tower body (2) is mounted on the base (1), an inlet pipe (3) communicating with the tower body (2) is provided on one side of the base (1), and a drain pipe (4) is connected to one side of the top of the tower body (2), characterized in that: The tower body (2) is symmetrically equipped with a first storage cylinder (5) and a second storage cylinder (6) in the middle. A cleaning mechanism (7) is installed on both the first storage cylinder (5) and the second storage cylinder (6). A holding assembly (12) is installed inside the tower body (2). The holding assembly (12) is configured to cooperate with the first storage cylinder (5) and the second storage cylinder (6). An electric cylinder (8) is installed at the end of the second storage cylinder (6). The output end of the electric cylinder (8) is rotatably connected to one end of the holding assembly (12). A rotating mechanism (11) is installed at the end of the first storage cylinder (5). The rotating mechanism (11) is configured to cooperate with the other end of the holding assembly (12). Outer boxes (9) are symmetrically welded on both sides of the tower body (2). A sealing assembly (10) is installed inside each outer box (9).

2. The two-phase catalytic oxidation reaction tower according to claim 1, characterized in that: The first storage tube (5) and the second storage tube (6) are respectively equipped with a first retaining ring (13) and a second retaining ring (14) on the inner wall of the tower body (2). The first retaining ring (13) and the second retaining ring (14) are both set in conjunction with the holding component (12).

3. The two-phase catalytic oxidation reaction tower according to claim 2, characterized in that: The cleaning mechanism (7) includes a spray box (701), and the top of the first storage cylinder (5) and the second storage cylinder (6) are both provided with a spray box (701), and a spray pipe is installed inside the spray box (701). A water pump (702) is installed on the top of the spray box (701), and the output end of the water pump (702) is connected to one end of the spray pipe; Waste discharge pipe (703) is installed at the bottom of the corresponding first storage cylinder (5) and second storage cylinder (6), and a solenoid valve electrically connected to the water pump (702) is installed on the waste discharge pipe (703).

4. The two-phase catalytic oxidation reaction tower according to claim 3, characterized in that: The first storage tube (5) is equipped with a sealing plate at its end. The sealing plate has a through hole in the middle, and the through hole is inserted into one end of the holding component (12).

5. A two-phase catalytic oxidation reaction tower according to claim 4, characterized in that: A support frame (16) is installed on the sealing plate, and a rotating mechanism (11) is installed on the support frame (16). The rotating mechanism (11) is located on one side of the through hole.

6. A two-phase catalytic oxidation reaction tower according to claim 5, characterized in that: The sealing assembly (10) includes a hydraulic pump (1001) mounted on the outer casing (9); A hydraulic rod (1002), one end of which is connected to the output end of a hydraulic pump (1001); The sealing plate (1003) is slidably fitted with the inner wall of the outer box (9), and the sealing plate (1003) is connected to the other end of the hydraulic rod (1002).

7. A two-phase catalytic oxidation reaction tower according to claim 6, characterized in that: The rotating mechanism (11) includes a motor (1101) which is mounted on a support frame (16); Rotary rod (1102), one end of which is connected to the output end of motor (1101); A drive gear (1103) is mounted on the other end of the rotating rod (1102).

8. A two-phase catalytic oxidation reaction tower according to claim 7, characterized in that: The holding assembly (12) includes a connecting rod (1201), one end of which is connected to the output end of the electric cylinder (8), and the other end of which is fixedly connected to a rack (15), which is configured to cooperate with the drive gear (1103); The first container (1202) is coaxially mounted on the connecting rod (1201); The second container (1203) is installed at one end of the first container (1202); The first baffle (1204) is installed at the other end of the first container (1202); The second baffle (1205) is installed between the first container (1202) and the second container (1203); The third baffle (1206) is installed at the other end of the second container (1203); The first container (1202) and the second container (1203) are used to hold solid two-phase catalysts.

9. A two-phase catalytic oxidation reaction tower according to claim 8, characterized in that: Sealing gaskets are installed on the inner sides of the first baffle (1204) and the third baffle (1206) as well as on both sides of the second baffle (1205).

10. A process for treating industrial wastewater using a two-phase catalytic oxidation reaction tower according to any one of claims 8-9, characterized in that: The process steps are as follows: S1: The second container (1203) is pulled into the tower body (2) by operating the electric cylinder (8); S2: The sealing components (10) inside the two outer boxes (9) operate synchronously to seal the gaps between the two sides of the second container (1203) and the inner wall of the tower body (2); S3: Then the wastewater is introduced into the tower body (2) through the inlet pipe (3) and catalytically oxidized by the solid two-phase catalyst in the second container (1203) to treat the wastewater. The treated wastewater is discharged from the drain pipe (4). S4: After a long period of use, the solid two-phase catalyst in the second container (1203) is reset and operated in conjunction with the electric cylinder (8) to push the second container (1203) into the first receiving container (5). The toothed rod (15) meshes with the rotating mechanism (11), and the first container (1202) enters the tower body (2). The sealing component (10) seals the gaps on both sides of the first container (1202) again to carry out continuous catalysis. S5: The cleaning mechanism (7) and the rotating mechanism (11) on the first storage cylinder (5) operate synchronously so that the first container (1202) and the second container (1203) rotate synchronously so that the surface of the solid catalyst inside the second container (1203) is cleaned. S6: After the surface of the solid catalyst in the second container (1203) is cleaned, the second container (1203) is put back into the tower body (2) to continue the catalytic reaction in conjunction with the electric cylinder (8), while the first container (1202) is put into the second storage container (6) and is rinsed by the cleaning mechanism (7) installed on the second storage container (6); S7: In this way, the cycle is carried out, so that the solid catalyst inside the second container (1203) is used as the main catalyst for oxidation, while the solid catalyst inside the first container (1202) is used as an auxiliary catalyst.

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