Chemical sewage pretreatment device for ozone oxidation

Abstract

The invention discloses an ozonation chemical sewage pretreatment device, and relates to the technical field of sewage pretreatment, sewage is added into a feed inlet, large garbage in the sewage is filtered out through a vibrating screen, large impurities can be scraped into a discharge chute by a scraping plate, and the large impurities are pressed through a pressing plate; the centrifugal ball rotates to generate centrifugal force, so that the sealing frame gradually reduces the water yield of the feeding hole, the sewage discharging speed is slowed down, ozone oxidation treatment has specific treatment capacity and reaction condition requirements, and by controlling the flow of the feeding hole, the ozone oxidation treatment can be carried out in the tank body, so that the ozone oxidation treatment efficiency is improved. The amount of sewage entering the device can be matched with the supply amount of ozone, the treatment capacity of reaction equipment and the like, so that the sewage can be sufficiently and effectively treated in the device, and the treatment efficiency and effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage pretreatment, and particularly to a chemical sewage pretreatment device for ozone oxidation. Background Art

[0002] When performing ozone oxidation treatment on sewage, it is necessary to pre-treat the sewage to remove garbage, suspended solids, and some organic matters in the sewage, etc., to prevent these substances from causing problems such as clogging, corrosion, and affecting the treatment effect on the ozone oxidation equipment and subsequent treatment processes. However, the existing sewage pretreatment equipment has some deficiencies, so it is necessary to develop a more efficient and perfect chemical sewage pretreatment device for ozone oxidation.

[0003] The patent with the patent publication number CN222312754U relates to the technical field of sewage pretreatment. This patent discloses a chemical sewage pretreatment device for ozone oxidation, specifically relating to the technical field of sewage pretreatment, including a housing. A suction pump is provided at the top of the housing, an exhaust pipe is provided at the top of the suction pump, a ladder is provided on the outer side of the housing, a first water inlet pipe is provided on the outer side of the housing, a motor is provided on one side of the housing, a second water inlet pipe is provided on one side of the housing, and a first drain pipe is provided on the other side of the housing. This patent realizes the stirring of the sewage inside the housing by arranging a connecting bent rod inside the housing and then driving the connecting bent rod to rotate by the motor, so as to drive the fixed disk and the fixing plate outside the fixed disk to rotate, and at the same time, the middle section of the connecting bent rod drives the rectangular plate to rotate, so as to drive the sewage in the middle section inside the housing to rotate. By different rotation speeds in the middle and at both ends, the full fusion of sewage and liquid medicine is improved, and the practicability of the device is enhanced.

[0004] In the above patent, the full fusion of sewage and liquid medicine is improved by different rotation speeds in the middle and at both ends, and the practicability of the device is enhanced. However, the current equipment has the following problems: the size of the sewage input port cannot be adjusted, which may lead to uneven load of the equipment under different working conditions. When the sewage flow rate is large, the equipment may be overloaded, affecting the treatment effect and the service life of the equipment; when the sewage flow rate is small, the equipment may not be able to fully exert its treatment capacity, resulting in waste of resources. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a chemical sewage pretreatment device for ozone oxidation, which solves the problems put forward in the above background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ozone-oxidized chemical wastewater pretreatment device, comprising a tank body, a vibrating screen and a feed inlet, wherein the vibrating screen is arranged above the tank body, the feed inlet is arranged on the surface of the tank body, and also comprises a treatment device; wherein the treatment device comprises a rotating knob, a driving rod, a fixed frame, a sliding frame, a centrifugal ball, a connecting frame and a sealing frame, wherein the rotating knob is rotatably mounted on the surface of the tank body, the driving rod is arranged on the surface of the tank body, a scraper is arranged on the circumferential surface of the driving rod, the rotating knob is transmission-connected to the driving rod through a No. 1 belt, the fixed frame is fixedly mounted on the circumferential surface of the driving rod, the sliding frame is The movable frame is slidably mounted on the circumferential surface of the driving rod, the centrifugal ball is rotatably mounted on the inner wall of the fixed frame, one side of the connecting frame is rotatably mounted on the surface of the centrifugal ball, the other side of the connecting frame is rotatably mounted on the surface of the sliding frame, and the sealing frame is fixedly mounted on the surface of the sliding frame close to the feeding port. The driving rod rotates while driving the fixed frame to rotate, and the rotation of the fixed frame drives the centrifugal ball to rotate. The rotation of the centrifugal ball generates centrifugal force to rotate itself outward, that is, drives the connecting frame to rotate, the rotation of the connecting frame drives the sliding frame to move upward, and the upward movement of the sliding frame drives the sealing frame to move. At this time, the sealing frame will gradually reduce the water output of the feeding port, so that the sewage discharge speed is slowed down; Wherein, a dosing device for carrying out a drug reaction on the sewage and an auxiliary device for carrying out auxiliary treatment on the mixed sewage are arranged inside the tank body.

[0007] According to the above technical solution, a No. 1 spring is arranged between the sliding frame and the driving rod, and the No. 1 spring drives the sliding frame to reset. The outer wall of the vibrating screen is provided with a discharge trough, and large impurities will be scraped into the discharge trough by the scraper.

[0008] According to the above technical solution, the processing device also includes a reciprocating screw and a pressure plate. The reciprocating screw is fixedly installed at the bottom of the rotating knob, and the pressure plate is threadedly installed on the circumferential surface of the reciprocating screw. The rotation of the rotating knob drives the reciprocating screw to rotate, and the rotation of the reciprocating screw causes the pressure plate to move back and forth up and down.

[0009] According to the above technical solution, the dosing device includes a medicine tank, a U-shaped frame and a sieve plate, the medicine tank is fixedly mounted on the circumferential surface of the tank body, the U-shaped frame is fixedly mounted on the surface of the vibrating screen, the sieve plate is fixedly mounted on the bottom of the U-shaped frame, and a medicine inlet is provided on the circumferential surface of the medicine tank. The powdered medicine is added into the medicine tank from the medicine inlet, and the vibration of the vibrating screen drives the U-shaped frame to vibrate, and the vibration of the U-shaped frame causes the sieve plate to vibrate.

[0010] According to the above technical solution, the chemical dosing device further includes a rolling plate and a return spring. The rolling plate is slidably mounted on the circumferential surface of the U-shaped frame. The return spring is disposed between the rolling plate and the U-shaped frame. When the U-shaped frame vibrates, the rolling plate generates slight shaking, and under the action of the return spring, the rolling plate shakes slightly up and down, so that the rolling plate contacts the caked chemical agent and crushes it.

[0011] According to the above technical solution, the chemical dosing device further includes a driving frame, stirring blades, a depth rod and a floating plate. The driving frame is fixedly mounted at the bottom of the driving rod. The stirring blades are fixedly mounted on the circumferential surface of the driving frame. The depth rod is fixedly mounted at the bottom of the inner wall of the tank. The floating plate is slidably mounted on the circumferential surface of the depth rod. A sliding groove is formed on the circumferential surface of the driving frame. After the chemical agent is added, the driving rod drives the driving frame to rotate. The rotation of the driving frame drives the stirring blades to rotate, and the floating plate rises by buoyancy.

[0012] According to the above technical solution, the auxiliary device includes a sliding rod, an anti-foaming sheet and a groove block. The sliding rod is slidably mounted on the circumferential surface of the driving frame. The anti-foaming sheet is rotatably mounted at the bottom of the sliding rod. One side of the groove block is fixedly mounted on the inner wall of the anti-foaming sheet. The other side of the groove block is slidably mounted on the inner wall of the sliding groove. When the floating plate rises and contacts the sliding rod, the sliding rod moves, and the movement of the sliding rod drives the anti-foaming sheet to move, so that the anti-foaming sheet is always located at the floating bubbles of the sewage.

[0013] According to the above technical solution, the auxiliary device further includes a round rod and a pentagonal rod. The round rod is fixedly mounted at the bottom of the driving frame. A reciprocating spiral groove is formed on the circumferential surface of the round rod. The pentagonal rod is threadedly mounted on the circumferential surface of the round rod. When the driving frame rotates, it drives the round rod to rotate. The rotation of the round rod makes the pentagonal rod move up and down reciprocally under the setting of the reciprocating spiral groove.

[0014] The present invention provides a pre-treatment device for chemical sewage by ozone oxidation, which has the following beneficial effects: (1) In this invention, through the setting of the treatment device, sewage is added into the feeding port. The larger garbage in the sewage is filtered out by the vibrating screen to avoid blocking and damaging the equipment and affecting the treatment effect. The large impurities will be scraped by the scraper to the discharge chute and pressed by the pressing plate, so that the attached moisture inside is squeezed out again, and then discharged into the tank through the pipeline. The centrifugal balls rotate to generate centrifugal force to gradually reduce the water discharge amount of the feeding port, so that the sewage discharge speed becomes slower. Ozone oxidation treatment has specific treatment capabilities and reaction condition requirements. By controlling the flow rate of the feeding port, the amount of sewage entering the device can be matched with the supply amount of ozone, the treatment capacity of the reaction equipment, etc., to ensure that the sewage in the device can be fully and effectively treated, improving the treatment efficiency and effect.

[0015] (2) In this invention, through the setting of the chemical dosing device, the powdery chemical agent is added into the medicine tank from the medicine inlet. By vibrating the sieve plate, the chemical agent can quickly pass through the sieve plate and enter the tank body. In the case of caking of the chemical agent, the caked chemical agent is crushed by contacting with the rolling plate. The caked chemical agent may form blockages at the medicine inlet of the medicine tank and in the sieve plate, affecting the transportation of the chemical agent and the normal operation of the entire pretreatment system. Crushing the chemical agent can prevent this situation from occurring and ensure the smoothness of the system. After the chemical agent is added, the two are mixed by the stirring blades to improve the efficiency of sewage pretreatment. When the sewage enters, the input volume of the sewage is recorded by the depth rod.

[0016] (3) In this invention, through the setting of the auxiliary device, as the floating plate rises, the defoaming sheet is always at the floating bubbles of the sewage. When the sewage is input, some difficult-to-eliminate floating bubbles may be generated. By rotating the defoaming sheet to disperse the floating bubbles, the reaction between ozone and pollutants can be made more sufficient, accelerating the reaction rate, shortening the reaction time, and improving the treatment efficiency of the pretreatment device. Through the reciprocating movement of the pentagonal rod, the sediment at the bottom is brought into the working range of the stirring blades. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the tank body of the present invention; Figure 3 is a schematic diagram of the position structure of the pressing plate and the discharge chute of the present invention; Figure 4 is the present invention Figure 3 Schematic enlarged view of the structure of part A in; Figure 5 is a schematic diagram of the position structure of the U-shaped frame and the vibrating screen of the present invention; Figure 6 is the present invention Figure 5 Schematic enlarged view of the structure of part B in; Figure 7 is a schematic diagram of the position structure of the floating plate and the sliding rod of the present invention; Figure 8 is a schematic diagram of the position structure of the groove block and the chute of the present invention.

[0018] In the figure: 1. Tank body; 2. Vibrating screen; 3. Feed inlet; 4. Rotating knob; 5. Driving rod; 6. Fixed frame; 7. Sliding frame; 8. Centrifugal ball; 9. Connecting frame; 10. Sealing frame; 11. Reciprocating lead screw; 12. Pressing plate; 20. Medicine tank; 21. U-shaped frame; 22. Sieve plate; 23. Rolling plate; 24. Return spring; 25. Driving frame; 26. Stirring blade; 27. Depth rod; 28. Floating plate; 30. Sliding rod; 31. Defoaming sheet; 32. Groove block; 33. Round rod; 34. Pentagonal rod. Detailed Embodiments

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 8 An embodiment of the present invention is: a chemical sewage pretreatment device for ozone oxidation, including a tank body 1, a vibrating screen 2 and a feed inlet 3. The vibrating screen 2 is arranged above the tank body 1 to filter out larger garbage in the sewage through the vibrating screen 2, avoiding blockage and damage to the equipment and affecting the treatment effect. The feed inlet 3 is arranged on the surface of the tank body 1, and a treatment device is further included; wherein, the treatment device includes a rotary knob 4, a driving rod 5, a fixed frame 6, a sliding frame 7, a centrifugal ball 8, a connecting frame 9 and a sealing frame 10. The rotary knob 4 is rotatably installed on the surface of the tank body 1, the driving rod 5 is arranged on the surface of the tank body 1, a scraper is arranged on the circumferential surface of the driving rod 5, the rotary knob 4 is in transmission connection with the driving rod 5 through a first belt, the fixed frame 6 is fixedly installed on the circumferential surface of the driving rod 5, the sliding frame 7 is slidably installed on the circumferential surface of the driving rod 5, the centrifugal ball 8 is rotatably installed on the inner wall of the fixed frame 6, one side of the connecting frame 9 is rotatably installed on the surface of the centrifugal ball 8, the other side of the connecting frame 9 is rotatably installed on the surface of the sliding frame 7, and the sealing frame 10 is fixedly installed on the surface of the sliding frame 7 close to the feed inlet 3. Ozone oxidation treatment has specific treatment capabilities and reaction condition requirements. By controlling the flow rate of the feed inlet 3, the amount of sewage entering the device can be matched with the supply amount of ozone, the treatment capacity of the reaction equipment, etc., ensuring that the sewage can be fully and effectively treated in the device, and improving the treatment efficiency and effect.

[0021] A first spring is arranged between the sliding frame 7 and the driving rod 5, and the sliding frame 7 is driven to reset by the arranged first spring. An outlet groove is arranged on the outer wall of the vibrating screen 2, and impurities are collected by the outlet groove.

[0022] The treatment device further includes a reciprocating lead screw 11 and a pressing plate 12. The reciprocating lead screw 11 is fixedly installed at the bottom of the rotary knob 4, and the pressing plate 12 is threadedly installed on the circumferential surface of the reciprocating lead screw 11, so that the moisture contained therein is squeezed out again, and then discharged into the tank body 1 through a pipeline.

[0023] When this embodiment works, sewage is added into the feeding port 3. The larger garbage in the sewage is filtered out by the vibrating screen 2 to avoid blocking and damaging the equipment and affecting the treatment effect. The driving rod 5 rotates to drive the first belt, causing the rotary knob 4 to rotate. The rotation of the rotary knob 4 drives the reciprocating lead screw 11 to rotate. The rotation of the reciprocating lead screw 11 causes the pressing plate 12 to move up and down reciprocally. At this time, the large impurities will be scraped by the scraper into the discharge chute. At this time, the pressing plate 12 presses them, so that the attached moisture is squeezed out again and then discharged into the tank body 1 through the pipeline. While the driving rod 5 rotates, it drives the fixed frame 6 to rotate. The rotation of the fixed frame 6 drives the centrifugal ball 8 to rotate. The rotation of the centrifugal ball 8 generates centrifugal force, causing itself to rotate outward, that is, driving the connecting frame 9 to rotate. The rotation of the connecting frame 9 drives the sliding frame 7 to move upward. The upward movement of the sliding frame 7 drives the sealing frame 10 to move. At this time, the sealing frame 10 will gradually reduce the water discharge volume of the feeding port 3, making the sewage discharge speed slower. Ozone oxidation treatment has its specific treatment capacity and reaction condition requirements. By controlling the flow rate of the feeding port 3, the amount of sewage entering the device can be matched with the supply amount of ozone, the treatment capacity of the reaction equipment, etc., ensuring that the sewage can be fully and effectively treated in the device and improving the treatment efficiency and effect.

[0024] Please refer to Figures 1 - 8 , on the basis of the above embodiment, in another embodiment of the present invention, a medicine adding device for performing a drug reaction on sewage and an auxiliary device for assisting in treating the mixed sewage are provided inside the tank body 1. The medicine adding device includes a medicine tank 20, a U-shaped frame 21 and a sieve plate 22. The medicine tank 20 is fixedly installed on the circumferential surface of the tank body 1. The U-shaped frame 21 is fixedly installed on the surface of the vibrating screen 2. The sieve plate 22 is fixedly installed at the bottom of the U-shaped frame 21. An inlet for medicine is provided on the circumferential surface of the medicine tank 20. The powdery medicine is added into the medicine tank 20 from the inlet for medicine, so that the medicine can quickly pass through the sieve plate 22 and enter the tank body 1.

[0025] The medicine adding device further includes a rolling plate 23 and a return spring 24. The rolling plate 23 is slidably installed on the circumferential surface of the U-shaped frame 21. The return spring 24 is arranged between the rolling plate 23 and the U-shaped frame 21. The return spring 24 is provided to reset the rolling plate 23, so that the rolling plate 23 contacts the caked medicine and crushes it, preventing the caked medicine from possibly forming a blockage at the inlet for medicine of the medicine tank 20 and in the sieve plate 22.

[0026] The chemical dosing device further includes a drive frame 25, a stirring blade 26, a depth rod 27 and a floating plate 28. The drive frame 25 is fixedly installed at the bottom of the drive rod 5. The stirring blade 26 is fixedly installed on the circumferential surface of the drive frame 25. The depth rod 27 is fixedly installed at the bottom of the inner wall of the tank body 1. The floating plate 28 is slidably installed on the circumferential surface of the depth rod 27. A chute is provided on the circumferential surface of the drive frame 25. Through the stirring blade 26, the two are mixed to improve the efficiency of sewage pretreatment. When the sewage enters, the input volume of the sewage is recorded by the depth rod 27.

[0027] The auxiliary device includes a sliding rod 30, an anti-foaming blade 31 and a groove block 32. The sliding rod 30 is slidably installed on the circumferential surface of the drive frame 25. The anti-foaming blade 31 is rotatably installed at the bottom of the sliding rod 30. One side of the groove block 32 is fixedly installed on the inner wall of the anti-foaming blade 31. The other side of the groove block 32 is slidably installed on the inner wall of the chute. When the sewage is input, some floating bubbles that are difficult to eliminate may be generated. The floating bubbles are dispersed by the rotation of the anti-foaming blade 31. Dispersing the floating bubbles can make the reaction between ozone and pollutants more sufficient, accelerate the reaction rate, shorten the reaction time, and improve the treatment efficiency of the pretreatment device.

[0028] The auxiliary device further includes a round rod 33 and a pentagonal rod 34. The round rod 33 is fixedly installed at the bottom of the drive frame 25. A reciprocating spiral groove is provided on the circumferential surface of the round rod 33. The pentagonal rod 34 is threadedly installed on the circumferential surface of the round rod 33. Through the reciprocating movement of the pentagonal rod 34, the sediment at the bottom is brought into the working range of the stirring blade 26.

[0029] When this embodiment works, the powdery chemical agent is added into the chemical agent tank 20 from the chemical agent inlet. The vibration of the vibrating screen 2 drives the vibration of the U-shaped frame 21. The vibration of the U-shaped frame 21 causes the sieve plate 22 to vibrate, so that the chemical agent can quickly pass through the sieve plate 22 and enter the tank body 1. In the case of agglomerated chemical agents, the vibration of the U-shaped frame 21 causes the rolling plate 23 to vibrate slightly, and under the setting of the return spring 24, the rolling plate 23 vibrates slightly up and down, so that the rolling plate 23 contacts the agglomerated chemical agent and crushes it. The agglomerated chemical agent may form blockages at the chemical agent inlet of the chemical agent tank 20 and the sieve plate 22, affecting the transportation of the chemical agent and the normal operation of the entire pretreatment system. Crushing the chemical agent can prevent this situation from occurring and ensure the smoothness of the system. After the chemical agent is added, the drive rod 5 drives the drive frame 25 to rotate. The rotation of the drive frame 25 drives the stirring blade 26 to rotate. Through the stirring blade 26, the two are mixed to improve the efficiency of sewage pretreatment. When the sewage enters, the input volume of the sewage is recorded by the depth rod 27, and the floating plate 28 rises due to buoyancy; The rising of the floating plate 28 and the contact with the sliding rod 30 cause the sliding rod 30 to move. The movement of the sliding rod 30 drives the movement of the defoaming sheet 31, so that the defoaming sheet 31 is always located at the floating bubbles of the sewage. Some difficult-to-eliminate floating bubbles may be generated when the sewage is input. At this time, the driving frame 25 rotates to drive the groove block 32 to rotate. The rotation of the groove block 32 drives the defoaming sheet 31 to rotate. The floating bubbles are dispersed by the rotation of the defoaming sheet 31. Dispersing the floating bubbles can make the reaction between ozone and pollutants more sufficient, accelerate the reaction rate, shorten the reaction time, and improve the treatment efficiency of the pretreatment device. While the driving frame 25 rotates, it drives the round rod 33 to rotate. The rotation of the round rod 33 makes the pentagonal rod 34 move up and down reciprocally under the setting of the reciprocating spiral groove. The reciprocating movement of the pentagonal rod 34 brings the bottom sediment into the working range of the stirring blade 26.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical sewage pretreatment device with ozone oxidation, comprising a tank body (1), a vibrating screen (2) and a feeding port (3), characterized in that: The vibrating screen (2) is arranged above the tank body (1), the feed inlet (3) is arranged on the surface of the tank body (1), and a processing device is further included; Wherein, the processing device includes a rotary knob (4), a driving rod (5), a fixing frame (6), a sliding frame (7), a centrifugal ball (8), a connecting frame (9) and a sealing frame (10). The rotary knob (4) is rotatably installed on the surface of the tank body (1), the driving rod (5) is arranged on the surface of the tank body (1), a scraping plate is arranged on the circumferential surface of the driving rod (5), the rotary knob (4) is in transmission connection with the driving rod (5) through a first belt, the fixing frame (6) is fixedly installed on the circumferential surface of the driving rod (5), the sliding frame (7) is slidably installed on the circumferential surface of the driving rod (5), the centrifugal ball (8) is rotatably installed on the inner wall of the fixing frame (6), one side of the connecting frame (9) is rotatably installed on the surface of the centrifugal ball (8), the other side of the connecting frame (9) is rotatably installed on the surface of the sliding frame (7), and the sealing frame (10) is fixedly installed on the surface of the sliding frame (7) close to one side of the feed inlet (3); Wherein, a chemical dosing device for performing a drug reaction on the sewage and an auxiliary device for performing auxiliary treatment on the mixed sewage are arranged inside the tank body (1).

2. The chemical sewage pretreatment device with ozone oxidation according to claim 1, characterized in that: A first spring is arranged between the sliding frame (7) and the driving rod (5), and a discharge chute is arranged on the outer wall of the vibrating screen (2).

3. An ozone oxidation chemical sewage pretreatment device according to claim 2, characterized in that: The processing device further includes a reciprocating lead screw (11) and a pressing plate (12). The reciprocating lead screw (11) is fixedly installed at the bottom of the rotary knob (4), and the pressing plate (12) is threadedly installed on the circumferential surface of the reciprocating lead screw (11).

4. An ozone oxidation chemical sewage pretreatment device according to claim 3, characterized in that: The chemical dosing device includes a medicine tank (20), a U-shaped frame (21) and a sieve plate (22). The medicine tank (20) is fixedly installed on the circumferential surface of the tank body (1), the U-shaped frame (21) is fixedly installed on the surface of the vibrating screen (2), the sieve plate (22) is fixedly installed at the bottom of the U-shaped frame (21), and a medicine inlet is arranged on the circumferential surface of the medicine tank (20).

5. The chemical industrial sewage pretreatment device by ozone oxidation according to claim 4, characterized in that: The chemical dosing device further includes a rolling plate (23) and a return spring (24). The rolling plate (23) is slidably installed on the circumferential surface of the U-shaped frame (21), and the return spring (24) is arranged between the rolling plate (23) and the U-shaped frame (21).

6. The chemical sewage pretreatment device by ozone oxidation according to claim 5, characterized in that: The chemical dosing device further includes a driving frame (25), a stirring blade (26), a depth rod (27) and a floating plate (28). The driving frame (25) is fixedly installed at the bottom of the driving rod (5), the stirring blade (26) is fixedly installed on the circumferential surface of the driving frame (25), the depth rod (27) is fixedly installed at the bottom of the inner wall of the tank body (1), the floating plate (28) is slidably installed on the circumferential surface of the depth rod (27), and a chute is formed on the circumferential surface of the driving frame (25).

7. An ozone oxidation chemical sewage pretreatment device according to claim 6, characterized in that: The auxiliary device includes a sliding rod (30), an antifoaming sheet (31) and a groove block (32). The sliding rod (30) is slidably installed on the circumferential surface of the driving frame (25). The antifoaming sheet (31) is rotatably installed at the bottom of the sliding rod (30). One side of the groove block (32) is fixedly installed on the inner wall of the antifoaming sheet (31), and the other side of the groove block (32) is slidably installed on the inner wall of the chute.

8. An ozone oxidation chemical sewage pretreatment device according to claim 7, characterized in that: The auxiliary device further includes a round rod (33) and a pentagonal rod (34). The round rod (33) is fixedly installed at the bottom of the driving frame (25). A reciprocating spiral groove is formed on the circumferential surface of the round rod (33), and the pentagonal rod (34) is threadedly installed on the circumferential surface of the round rod (33).

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