A catalytic oxidation tower

Abstract

The present invention provides a catalytic oxidation tower, which relates to the technical field of wastewater treatment, and aims to solve the problem of long treatment time of organic wastewater. A catalytic oxidation tower is provided, comprising: a tower body, wherein the tower body is configured from top to bottom as a pre-reaction area, a catalytic oxidation area and a mixing area, wherein a sewage inlet and a gas inlet are provided in the mixing area; a catalyst filling assembly, which is installed in the catalytic oxidation area; and a premixing assembly, whose gas outlet is connected to the gas inlet, and the nozzle of the premixing assembly is rotatably installed in the mixing area; the catalyst filling assembly comprises: a fixed frame, a rotating frame, a plurality of filling plates, a catalyst, a heating assembly, and a driving mechanism, wherein the rotating direction of the rotating frame is opposite to the rotating direction of the nozzle of the premixing assembly. The present invention rotates the premixing assembly and the catalyst filling assembly so that the wastewater is fully mixed with ozone and then reacts with the catalyst, thereby increasing the reaction speed.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a catalytic oxidation tower. Background Art

[0002] In the production process of flavors and fragrances, due to the different types of flavors and fragrances, different raw materials required, and different production processes, the composition, concentration, and salinity of the wastewater produced are also different. This type of wastewater has the characteristics of high concentration, complex components, high salt content, strong toxicity, and poor biodegradability. It is a typical high-concentration difficult-to-degrade organic wastewater.

[0003] When treating organic wastewater, the organic wastewater needs to fully contact and react with the catalyst in the catalytic oxidation tower. When using a traditional catalytic oxidation tower for catalytic reaction, sewage and ozone enter from the bottom of the tower body, mix in the chamber between the catalyst bed and the bottom of the tower body, and then overflow the catalyst bed for reaction. When using the above structure for catalytic reaction, since sewage and ozone are fully mixed, there is a problem of low reaction efficiency when sewage and ozone contact with the catalyst. Summary of the invention

[0004] In order to solve the problem of long organic wastewater treatment time, the present invention provides a catalytic oxidation tower, which can fully mix wastewater with ozone and then react with the catalyst by rotating a premixing component and a catalyst filling component, thereby improving the reaction speed.

[0005] The technical solution adopted by the present invention is:

[0006] A catalytic oxidation tower, comprising:

[0007] A tower body, wherein the tower body is configured from top to bottom as a pre-reaction area, a catalytic oxidation area and a mixing area, a partition plate is provided between the pre-reaction area and the catalytic oxidation area, and a rotatable nozzle is provided in the mixing area;

[0008] A catalyst filling assembly installed in the catalytic oxidation area;

[0009] A premixing component is arranged in the pre-reaction area, and a discharge end of the premixing component is connected to the nozzle;

[0010] The catalyst filling assembly comprises:

[0011] A fixing frame is installed on the inner wall of the tower body, and a slide groove is arranged on the top of the fixing frame;

[0012] A rotating frame, wherein a roller is provided at the bottom of the rotating frame, and the roller is installed in the chute. A material inlet channel and a material outlet channel are provided in the middle of the rotating frame, and the outlet of the material outlet channel is connected to the outside of the tower body;

[0013] A plurality of filling plates are vertically mounted on the rotating frame, the material inlet channel is communicated with the material inlet of the filling plate, and the material outlet channel is communicated with the material outlet of the filling plate;

[0014] A catalyst is filled into the filling plate;

[0015] A heating assembly is installed in the filling plate;

[0016] A driving mechanism, mounted on the outside of the tower body, with a driving end extending into the tower body and connected to the rotating frame through a transmission device;

[0017] The rotating direction of the rotating frame is opposite to the rotating direction of the nozzle of the premixing assembly, and the organic wastewater stays in the pre-reaction area for at least 6h-12h after being mixed with the catalyst.

[0018] Optionally, an overflow pipe is provided on the outer side wall of the catalytic oxidation area of ​​the tower body, and an overflow valve is provided on the overflow pipe.

[0019] Optionally, the rotating frame comprises:

[0020] A first plate, wherein the roller is mounted on the bottom of the first plate;

[0021] The second disk body is coaxially arranged with the first disk body, and the first disk body and the second disk body are connected by a connecting rod, the connecting rod is provided with a plurality of limit slots along the axial direction thereof, and one end of the filling plate is arranged in two adjacent limit slots;

[0022] A positioning rod is installed in the middle of the second disk body, and the material inlet channel and the material outlet channel are respectively arranged at two ends of the positioning rod;

[0023] The fixed disc body is installed on the other end of the positioning rod.

[0024] Optionally, the filling plate has protrusions on both sides of one end, and a positioning protrusion on the other end; the protrusions on the mating sides of two adjacent filling plates cooperate with the limiting bayonet, and the positioning protrusion cooperates with an opening provided on the fixed disk body.

[0025] Optionally, the premixing assembly comprises:

[0026] An automatic dosing mechanism is installed on the outside of the tower body and is connected to the pre-reaction area;

[0027] A rotating disk is rotatably mounted at the bottom of the mixing area, the interior of the rotating disk has a containing chamber, the feed end of the containing chamber is connected to the discharge end of the automatic dosing mechanism through a movable connecting piece, and the nozzle is mounted on the top of the rotating disk and is connected to the containing chamber;

[0028] A rotating motor is installed outside the tower body, and a driving shaft of the rotating motor is connected to the rotating disk.

[0029] Optionally, the heating component comprises:

[0030] A plurality of resistance wires, the plurality of resistance wires are woven into a mesh and are horizontally arranged in the filling plate;

[0031] A conductive slip ring is installed in the positioning rod of the rotating frame, and the resistance wire is electrically connected to the conductive slip ring.

[0032] Optionally, the catalytic oxidation tower further comprises:

[0033] The auxiliary heating device is installed inside the rotating frame and the side wall of the filling plate.

[0034] Optionally, the catalyst is in the shape of an ellipsoid, a circle or a polygon.

[0035] Optionally, the catalytic oxidation tower further comprises:

[0036] A temperature sensor is installed in the tower body;

[0037] A pH detector, whose detection end is installed in the pre-reaction area;

[0038] A controller, wherein the signal output end of the temperature sensor is connected to the first signal input end of the controller, the signal output end of the pH detector is connected to the second signal input end of the controller; the first signal output end of the controller is connected to the signal input end of the catalyst filling component, and the second signal output end of the controller is connected to the signal input end of the premixing component.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1. The nozzles of the catalyst filling component and the pre-mixing component can both rotate in opposite directions, so that the incoming organic wastewater and the reagent are fully mixed and react with the catalyst in the catalyst filling component after mixing.

[0041] 2. The heating component is set in the catalyst to facilitate the adjustment of the reaction temperature and accelerate the reaction between the sewage mixed with the reagent and the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 This is a schematic diagram of the full cross-section structure of the catalytic oxidation tower.

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating frame of the catalytic oxidation tower.

[0045] Figure 3 It is a schematic diagram of the plan structure of a catalytic oxidation tower with an overflow pipe.

[0046] Figure 4 The schematic diagram of the structure of the catalytic oxidation tower includes a temperature sensor, a pH detector and a controller.

[0047] Figure 5 It is a structural schematic diagram of a catalytic oxidation tower with an auxiliary heating device.

[0048] Reference numerals:

[0049] 1. Tower body; 11. Pre-reaction area; 12. Catalytic oxidation area; 13. Mixing area; 14. Overflow pipe;

[0050] 2. Catalyst filling assembly; 21. Fixed frame; 22. Slide; 23. Rotating frame; 231. Material inlet channel; 232. Material outlet channel; 233. First plate; 234. Second plate; 235. Connecting rod; 236. Limiting bayonet; 237. Positioning rod; 238. Fixed plate; 239. Bayonet; 24. Filling plate; 241. Card convex; 242. Positioning convex; 25. Catalyst; 26. Heating assembly; 261. Resistance wire; 262. Conductive slip ring; 27. Driving mechanism; 28. Roller;

[0051] 3. Premixing assembly; 31. Automatic dosing mechanism; 32. Rotating disk; 33. Spray head; 34. Rotating motor;

[0052] 4. Auxiliary heating device;

[0053] 5. Temperature sensor;

[0054] 6. pH detector;

[0055] 7. Controller. DETAILED DESCRIPTION

[0056] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0057] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0061] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0062] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the present invention provides a catalytic oxidation tower, comprising: a tower body 1, a catalyst filling assembly 2 and a premixing assembly 3. The tower body 1 is configured from top to bottom as a prereaction area 11, a catalytic oxidation area 12 and a mixing area 13. A partition is provided between the prereaction area 11 and the catalytic oxidation area 12, so that the reaction area 11 is isolated as a relatively closed chamber. The catalyst filling assembly 2 is installed in the catalytic oxidation area 12. The premixing assembly 3 is arranged in the prereaction area 11, the discharge end of the premixing assembly 3 is connected to the mixing area 13, and the nozzle 33 of the premixing assembly 3 is rotatably installed in the mixing area 13.

[0063] When in use, the organic wastewater enters the pre-reaction area 11 of the tower body 1 through the sewage inlet, and is mixed with the reagent in the pre-reaction area 11. The mixed sewage enters the mixing area 13. Since the nozzle 33 of the pre-mixing component 3 is rotatable, the reagent and the sewage are fully mixed in the mixing area 13, and then the sewage overflows the catalyst filling component 2 and reacts with the catalyst 25 in the catalyst filling component 2. Since the reagent is mixed with the organic wastewater when entering the tower body 1, the organic wastewater reacts quickly with the catalyst 25 when overflowing the catalyst filling component 2. Among them, Figure 4 The direction of the arrow is the flow direction of sewage.

[0064] More specifically, if Figure 1 and Figure 2As shown, the catalyst filling assembly 2 includes: a fixed frame 21, a rotating frame 23, a plurality of filling plates 24, a catalyst 25, a heating assembly 26 and a driving mechanism 27. The fixed frame 21 is installed on the inner side wall of the tower body 1, and a chute 22 is provided on the top of the fixed frame 21. A roller 28 is provided at the bottom of the rotating frame 23, and the roller 28 is installed in the chute 22. The middle part of the rotating frame 23 has a material inlet channel 231 and a material outlet channel 232, and the outlet of the material outlet channel 232 is connected to the outside of the tower body 1. A plurality of filling plates 24 are vertically installed on the rotating frame 23, and the material inlet channel 231 is connected to the feed port of the filling plate 24, and the material outlet channel 232 is connected to the discharge port of the filling plate 24. The catalyst 25 is filled into the filling plate 24; the heating assembly 26 is installed in the filling plate 24; the driving mechanism 27 is installed on the outside of the tower body 1, and its driving end extends into the tower body 1 and is connected to the rotating frame 23 through a transmission device. The rotation direction of the rotating frame 23 is opposite to the rotation direction of the nozzle 33 of the premixing assembly 3, and the organic wastewater stays in the pre-reaction area 11 for at least 6h-12h after mixing with the catalyst 25. It should be noted that the material outlet channel 232 is in a normally closed state during use to prevent the catalyst 25 from leaking out. A feed pipe for the catalyst to pass through is provided in the pre-reaction area 11, and the feed pipe is connected to the material inlet channel 231, which facilitates the catalyst 25 to enter the rotating frame 23 and prevents the catalyst 25 from contacting with sewage in the pre-reaction area 11. When in use, the catalyst 25 is automatically replenished by an automatic feeding device.

[0065] When in use, the driving mechanism 27 drives the rotating frame 23 to rotate through the transmission device, and drives the organic wastewater to rotate during the rotation process. At the same time, the ozone entering the mixing area 13 is mixed with the organic wastewater during the rotation process, and after mixing, it contacts the filling plate 24 filled with the catalyst 25. After contact, the ozone, the catalyst 25 and the organic matter in the organic wastewater react to degrade the organic matter. In order to improve the reaction efficiency during the reaction process, a heating component 26 is installed in the filling plate 24, and the reaction temperature is controlled by the heating component 26. The organic wastewater is reacted at a preset temperature for 6h-12h, and then discharged into the subsequent tank for treatment.

[0066] It should be noted that the driving mechanism 27 is a motor, which drives the rotating frame 23 to rotate slowly. More specifically, the motor rotation speed is 1 r / min-20 r / min.

[0067] In another embodiment, if Figure 3As shown, in order to prevent excessive pressure in the tower body 1 or sewage from entering the feed pipe during use, an overflow pipe 14 is provided on the outer wall of the catalytic oxidation area 12 of the tower body 1. The overflow pipe 14 is provided with an overflow valve, and one end of the outlet of the overflow pipe 14 is connected to the organic wastewater pool through a pipeline. The installation height of the overflow pipe 14 is higher than the setting height of the material inlet channel 231.

[0068] In another embodiment, if Figure 2 As shown, in order to facilitate the rotation of the rotating frame 23, the rotating frame 23 includes: a first plate 233, a second plate 234, a positioning rod 237 and a fixed plate 238. The roller 28 is installed at the bottom of the first plate 233, and the roller 28 slides in the slide groove 22 of the fixed frame 21; the second plate 234 is coaxially arranged with the first plate 233, and the first plate 233 and the second plate 234 are connected by a connecting rod 235. The connecting rod 235 is provided with a plurality of limit snap-in openings 236 along its axial direction, and one end of the filling plate 24 is arranged in two adjacent limit snap-in openings 236. The positioning rod 237 is installed in the middle of the second plate 234, and the material inlet channel 231 and the material outlet channel 232 are respectively arranged at the two ends of the positioning rod 237. The fixed plate 238 is installed at the other end of the positioning rod 237.

[0069] Driven by the driving mechanism 27, the roller 28 slides in the slide groove 22, and the bottom of the filling plate 24 is limited by the connecting rod 235. The adjacent filling plates 24 are placed on a connecting rod 235. The filling plates 24 are installed in sequence around the circumference of the positioning rod 237. After installation, they form a ring structure. The other end of the filling plate 24 is fixed by a fixing plate 238. The filling plate 24 is set as a split structure to facilitate later maintenance.

[0070] In another embodiment, if Figure 1 and Figure 2 As shown, in order to prevent the filling plate 24 from being displaced during the rotation process, a locking protrusion 241 is provided on both opposite sides of one end of the filling plate 24, and a positioning protrusion 242 is provided on the other end of the filling plate 24; the locking protrusion 241 on the side where two adjacent filling plates 24 are in contact cooperates with the limiting bayonet 236, and the positioning protrusion 242 cooperates with the opening set on the fixed disk body 238.

[0071] During use, the bottom of the filling plate 24 is positioned by the engagement of the locking protrusions 241 on both sides with the limiting locking slots 236, and then the top of the filling plate 24 is positioned by the positioning protrusions 242 and the opening on the fixed disk 238. At this time, both ends of the filling plate 24 are fixed to prevent displacement of the filling plate 24 during rotation.

[0072] It should be noted that a plurality of through holes are provided on the end surface of the fixed disk body 238 , and an opening that matches with the positioning protrusion 242 of the filling plate 24 is provided between two adjacent through holes.

[0073] In another embodiment, if Figure 1 and Figure 3 As shown, in order to save reaction time, the premixing assembly 3 includes: an automatic dosing mechanism 31, a rotating disk 32, a plurality of nozzles 33 and a rotating motor 34. The automatic dosing mechanism 31 is installed on the outside of the tower body 1 and is connected to the pre-reaction area 11. The rotating disk 32 is rotatably installed at the bottom of the mixing area 13, and the interior of the rotating disk 32 has a accommodating chamber, and the feed end of the accommodating chamber is connected to the discharge end of the automatic dosing mechanism 31 through a movable connecting piece. A plurality of nozzles 33 are installed on the top of the rotating disk 32 and are connected to the accommodating chamber. The rotating motor 34 is installed on the outside of the tower body 1, and the driving shaft of the rotating motor 34 is connected to the rotating disk 32.

[0074] When in use, the automatic dosing mechanism 31 provides the reagent to the pre-reaction area 11 of the tower body 1, and the sewage mixed with the reagent enters the containing chamber of the rotating disk 32 through the pipeline, and then is sprayed out through the nozzle 33 installed on the rotating disk 32. When spraying, the rotating motor 34 drives the rotating disk 32 to rotate, so that the sewage sprayed through the nozzle 33 drives the sewage in the tower body 1 to flow, and at the same time, the sewage in the tower body 1 driven by the rotating frame 23 during the rotation process flows in the opposite direction with the newly entered sewage, so that the sewage is fully mixed before entering the rotating frame 23, thereby improving the reaction efficiency. It should be noted that the rotation speed of the rotating disk 32 is greater than the rotation speed of the rotating frame 23.

[0075] The automatic medicine adding mechanism 31 in this embodiment is an existing automatic medicine adding device.

[0076] In another embodiment, if Figure 1 , Figure 3 and Figure 4 As shown, in order to facilitate the temperature control in the tower body 1, the heating assembly 26 includes: a plurality of resistance wires 261 and a conductive slip ring 262, and the plurality of resistance wires 261 are woven into a net and installed horizontally in the filling plate 24. The conductive slip ring 262 is installed in the positioning rod 237 to prevent the conductive slip ring 262 from directly contacting the organic wastewater and causing leakage. The resistance wires 261 are woven into a net to facilitate the passage of organic wastewater and facilitate heating.

[0077] In another embodiment, if Figure 5 As shown, in order to quickly and conveniently raise the temperature in the tower body 1 to a preset temperature, the catalytic oxidation tower further includes: an auxiliary heating device 4, which is installed inside the side walls of the rotating frame 23 and the filling plate 24.

[0078] It should be noted that the auxiliary heating device 4 can be a copper rod, an aluminum rod, a silver-plated rod, etc.

[0079] In another embodiment, in order to increase the contact area between the organic wastewater and the catalyst 25, the catalyst 25 is in an ellipsoidal, circular or polygonal shape, wherein the most preferred is a polygonal structure, specifically a hexagon, a heptagon or an octagon.

[0080] In another embodiment, if Figure 4 As shown, in order to facilitate the automatic temperature adjustment in the tower body 1, the catalytic oxidation tower further includes: a temperature sensor 5, a pH detector 6 and a controller 7, the temperature sensor 5 is installed in the catalytic oxidation area 12 of the tower body 1; the detection end of the pH detector 6 is installed in the pre-reaction area 11 of the tower body 1; the signal output end of the temperature sensor 5 is connected to the first signal input end of the controller 7, and the signal output end of the pH detector 6 is connected to the second signal input end of the controller 7; the first signal output end of the controller 7 is connected to the signal input end of the catalyst filling component 2, and the second signal output end of the controller 7 is connected to the signal input end of the premixing component 3.

[0081] During use, the operating temperature in the tower body 1 is detected by the temperature sensor 5, and then the temperature is controlled by the heating component 26 according to the preset temperature controller 7. The pH detector 6 is provided to facilitate the detection of the acidity and alkalinity of the organic wastewater in the pre-reaction area 11 of the tower body 1, and to facilitate the adjustment of the acidity and alkalinity of the organic wastewater.

[0082] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A catalytic oxidation tower, characterized in that: include: a tower body, wherein the tower body is configured from top to bottom as a pre-reaction area, a catalytic oxidation area, and a mixing area, a partition plate is provided between the pre-reaction area and the catalytic oxidation area, and a rotatable nozzle is provided in the mixing area; A catalyst filling assembly installed in the catalytic oxidation area; a pre-mixing assembly, disposed in the pre-reaction area, wherein a discharge end of the pre-mixing assembly is in communication with the nozzle; The catalyst filling assembly comprises: A fixing frame is installed on the inner wall of the tower body, and a sliding groove is provided on the top of the fixing frame; A rotating frame, wherein a roller is provided at the bottom of the rotating frame, the roller is installed in the chute, and a material inlet channel and a material outlet channel are provided in the middle of the rotating frame, and the outlet of the material outlet channel is connected to the outside of the tower body; A plurality of filling plates are vertically mounted on the rotating frame, the material inlet channel is connected to the feed port of the filling plate, and the material outlet channel is connected to the discharge port of the filling plate; A catalyst is filled into the filling plate; a heating assembly installed in the filling plate; A driving mechanism is installed on the outside of the tower body, and its driving end extends into the tower body and is connected to the rotating frame through a transmission device; The rotating rack rotates in the opposite direction to the nozzle of the premixing assembly, and the organic wastewater and the catalyst stay in the pre-reaction area for at least 6 hours to 12 hours after being mixed.

2. The catalytic oxidation tower according to claim 1, characterized in that An overflow pipe is provided on the outer side wall of the catalytic oxidation area of ​​the tower body, and an overflow valve is provided on the overflow pipe.

3. The catalytic oxidation tower according to claim 1, characterized in that The rotating frame comprises: a first plate body, wherein the roller is mounted on the bottom of the first plate body; The second disk body is coaxially arranged with the first disk body, and the first disk body and the second disk body are connected by a connecting rod, and the connecting rod is provided with a plurality of limit slots along the axial direction thereof, and one end of the filling plate is arranged in two adjacent limit slots; A positioning rod is installed in the middle of the second disk body, and the material inlet channel and the material outlet channel are respectively provided at both ends of the positioning rod; The fixed disc body is installed on the other end of the positioning rod.

4. The catalytic oxidation tower according to claim 3, characterized in that The filling plate has a locking protrusion on both sides of one end, and a positioning protrusion on the other end. The locking protrusions on the adjacent sides of the two adjacent filling plates cooperate with the limiting bayonet, and the positioning protrusion cooperates with the opening provided on the fixed disk body.

5. The catalytic oxidation tower according to claim 1, characterized in that The pre-mixing assembly comprises: An automatic dosing mechanism is installed on the outside of the tower body and is connected to the pre-reaction area; A rotating disk is rotatably mounted at the bottom of the mixing area, wherein a receiving chamber is provided inside the rotating disk, wherein a feed end of the receiving chamber is connected to a discharge end of the automatic dosing mechanism via a movable connecting piece, and the nozzle is mounted on the top of the rotating disk and is connected to the receiving chamber; A rotating motor is installed outside the tower body, and a driving shaft of the rotating motor is connected to the rotating disk.

6. The catalytic oxidation tower according to claim 1, characterized in that The heating assembly comprises: a plurality of resistance wires, the plurality of resistance wires being woven into a mesh and being horizontally arranged in the filling plate; A conductive slip ring is installed in the positioning rod of the rotating frame, and the resistance wire is electrically connected to the conductive slip ring.

7. The catalytic oxidation tower according to claim 1, characterized in that The catalytic oxidation tower further comprises: An auxiliary heating device is installed inside the rotating frame and the side wall of the filling plate.

8. The catalytic oxidation tower according to claim 1, characterized in that The shape of the catalyst is ellipsoidal, circular or polygonal.

9. The catalytic oxidation tower according to claim 1, characterized in that The catalytic oxidation tower further comprises: A temperature sensor is installed in the tower body; A pH detector, a detection end of which is installed in the pre-reaction area; A controller, wherein the signal output end of the temperature sensor is connected to the first signal input end of the controller, the signal output end of the pH detector is connected to the second signal input end of the controller; the first signal output end of the controller is connected to the signal input end of the catalyst filling assembly, and the second signal output end of the controller is connected to the signal input end of the premixing assembly.

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