WO2024082835A1

WO2024082835A1 - Catalytic ozonation reactor

Info

Publication number: WO2024082835A1
Application number: PCT/CN2023/116105
Authority: WO
Inventors: 丁晶; 翟学东; 关淑妍; 刘娟昉; 李玉龙; 张二太
Original assignee: 哈尔滨工业大学; 哈尔滨工业大学水资源国家工程研究中心有限公司
Priority date: 2022-10-20
Filing date: 2023-08-31
Publication date: 2024-04-25
Also published as: CN115504562A

Abstract

Provided is a catalytic ozonation reactor, relating to the technical field of ozonation, and comprising a reactor body. The lower end of the reactor body is connected to a liquid feeding pipe; and a control pump body is fixed to the lower end of the liquid feeding pipe. The lower end of the inner wall of the reactor body is provided with a discharge plate; a mixing and discharging end is fixed to the upper end face of the discharge pate; another end of the mixing and discharging end is connected to a mixing pump body; and the discharge end of the mixing and discharging end is provided with a rotation and guide mechanism. A catalyst accommodating bin is provided in the center of the interior of the reactor body; and a catalyst processing mechanism is provided on the inner side of the catalyst accommodating bin. The mixing pump body is capable of mixing gas and liquids, and cooperates with backflow injection ends by means of connection pipes, so as to rotate the gas and the liquids, thereby achieving micro-bubble distribution, multiple circulations and high mass transfer efficiency; additionally, a first catalyst particle end and a second catalyst particle end which are arranged on the inner side of the catalyst accommodating bin can catalyze ozone to generate a large number of hydroxyl radicals with strong oxidizing property.

Description

A catalytic ozone oxidation reactor

Technical Field

The invention belongs to the technical field of ozone oxidation, and particularly relates to a catalytic ozone oxidation reactor.

Background technique

Ozone is an allotrope of oxygen with the chemical formula O ₃ and a formula weight of 47.998. It is a light blue gas, dark blue in liquid state, and purple-black in solid state. The smell is similar to fishy smell, but when the concentration is too high, the smell is similar to chlorine. Ozone has strong oxidizing properties and is a stronger oxidant than oxygen. It can undergo oxidation reactions at lower temperatures, such as oxidizing silver into silver peroxide, oxidizing lead sulfide into lead sulfate, and reacting with potassium iodide to generate iodine. Ozone oxidation treatment refers to the use of ozone as a strong oxidant to oxidize organic or inorganic matter in water or wastewater to achieve the purpose of disinfection, oxidation or decolorization.

The reactor can quickly treat ozone and wastewater, but the existing equipment will inevitably have insufficient liquid and gas after the reaction, and if they are discharged, it will cause environmental pollution.

Summary of the invention

The purpose of the present invention is to provide a catalytic ozone oxidation reactor, which solves the existing problems

To solve the above technical problems, the present invention is achieved through the following technical solutions:

The present invention is a catalytic ozone oxidation reactor, comprising a reactor body, wherein the lower end of the reactor body is connected to a liquid inlet pipe, the lower end of the liquid inlet pipe is fixed with a control pump body, the other end of the liquid inlet pipe is connected to a mixing pump body, an output plate is arranged at the lower end of the inner wall of the reactor body, a mixing discharge end is fixed on the upper end surface of the output plate, and the other end of the mixing discharge end is connected to the mixing pump body, a rotating guide mechanism is arranged at the output end of the mixing discharge end, a catalytic placement bin is arranged at the center of the interior of the reactor body, a catalytic treatment mechanism is arranged on the inner side of the catalytic placement bin, and the reactor body is provided with a catalytic treatment mechanism. An isolation plate body with an arc-shaped cross section is fixed to the upper end of the inner wall of the reactor body, a circulation bin body is fixed to the outside of the placement bin, a circulation processing mechanism is arranged on the inner wall of the circulation bin body, and a reflux processing mechanism is arranged on the lower end of the outer surface of the isolation plate body.

Furthermore, one side of the mixing pump body is connected to an air duct, and the other end of the air duct is connected to the air pump body.

Furthermore, the rotating guide mechanism includes a connecting pipe and a reflux injection end, the connecting pipe is evenly arranged on the upper end surface of the mixing discharge end in a circular shape, the reflux injection end is fixed to the tail end of the connecting pipe, and the mixing discharge end and the catalytic placement bin maintain the same vertical center line.

Furthermore, the catalytic treatment mechanism includes a metal mesh body one, a catalyst particle end one, a metal mesh body two and a catalyst particle end two, the metal mesh body one is fixed to the inner wall of the catalytic placement bin, the catalyst particle end one is arranged at the upper end of the metal mesh body one, the metal mesh body two is arranged at the upper end of the catalyst particle end one, and the diameter of the metal mesh body two is smaller than the diameter of the metal mesh body one, and the catalyst particle end two is arranged at the upper end of the metal mesh body two.

Furthermore, a breathable membrane is provided at the center of the interior of the isolation plate body, and the breathable membrane body and the catalytic placement bin maintain the same vertical center line, a guide port is opened at the upper end of the circulation bin body, and the inner wall of the isolation plate body is connected to the guide port.

Furthermore, the circulation processing mechanism includes a fixed plate one, a breathable mesh plate, a catalyst particle end three and a fixed plate two, the fixed plate one is arranged on the inner wall of the circulation bin, and the other end of the fixed plate one is fixed to the inner wall of the reactor body, the inclination angle of the fixed plate one is 15°, the breathable mesh plate is evenly fixed at the lower end of the fixed plate one, the catalyst particle end three is arranged at the upper end of the breathable mesh plate, and the catalyst particle end three is tightly fitted with the breathable mesh plate, the fixed plate two is arranged on the inner wall of the circulation bin, and the fixed plate one and the fixed plate two are distributed in a stepped manner along the inside of the circulation bin body.

Furthermore, the reflux processing mechanism includes a reflux bin, a reflux port and a reflux tube body, the reflux bin is fixed on the outer surface of the reactor body, the reflux port is opened on the inner wall of the reflux bin, the outer surface of the isolation plate body is connected to the reflux port, the reflux tube body is connected at the lower end of the reflux port, and the reflux tube body is symmetrical about the vertical center line of the reactor body.

Furthermore, the tail end of the return pipe body is connected to an injection pipe, the tail end of the injection pipe is connected to an injection valve body, and the injection valve bodies are evenly distributed along the outer circle of the output plate, and the inclination angle of the injection valve body is 15°.

Furthermore, an air outlet pump is arranged at the center of the upper end surface of the reactor body, and an output end of the air outlet pump is connected to an air outlet pipe.

Furthermore, an ozone detection device is provided on the outer surface of the air outlet pipe, and the other end of the ozone detection device is connected to the air duct.

The present invention has the following beneficial effects:

1. The present invention can mix gas and liquid by setting a mixing pump body, and the connecting pipe and the reflux injection end are coordinated to make the gas and liquid rotate, so that microbubble distribution, multiple circulation, and high mass transfer efficiency are achieved. At the same time, the catalyst particle end 1 and the catalyst particle end 2 arranged on the inner side of the catalytic placement bin can catalyze ozone to generate a large number of strongly oxidizing hydroxyl radicals, greatly enhancing the oxidation capacity of the equipment, and the particles of the catalyst particle end 2 are smaller than those of the catalyst particle end 1, thereby improving the utilization rate of ozone.

2. The present invention can separate liquid by setting an isolation plate body. The liquid on the inner wall of the isolation plate body can be introduced into the guide port. The liquid can be recycled through the fixed plate 1 and the fixed plate 2, and can be treated again through the catalyst particle end 3 to ensure its treatment effect. The lower end of the circulation bin body is connected to the injection valve body through the injection pipe, so that it can be repeatedly treated.

3. The present invention can introduce the liquid filtered by the breathable membrane into the reflux chamber. The liquid is then circulated in the mouth and flows out of the injection valve body through the reflux pipe, so that the liquid can be processed again and recycled in time to improve the reaction treatment effect of the equipment. The treated gas can be discharged through the outlet pump and the outlet pipe, and then detected by the ozone detection equipment, which is convenient for the staff to observe and control. The process is simple to operate, energy-saving and environmentally friendly, and can ensure the working efficiency of the equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of the top view of the structure of the reactor body of the present invention;

FIG2 is a schematic diagram of the internal structure of the catalytic storage bin of the present invention;

FIG3 is a schematic diagram of the internal structure of the circulation bin body of the present invention;

FIG4 is a schematic diagram of the top view of the structure of the mixing discharge end of the present invention;

FIG5 is a schematic diagram of a partial enlarged structure of point A in FIG3 of the present invention;

FIG. 6 is a schematic diagram of a partially enlarged structure of point B in FIG. 3 of the present invention.

In the accompanying drawings, the components represented by the reference numerals are listed as follows:

1. Reactor body; 2. Liquid inlet pipe; 3. Control pump body; 4. Mixing pump body; 5. Air duct; 6. Air pump body; 7. Output plate; 8. Mixing discharge end; 9. Connecting pipe; 10. Reflux injection end; 11. Catalytic placement bin; 12. Metal mesh body 1; 13. Catalyst particle end 1; 14. Metal mesh body 2; 15. Catalyst particle end 2; 16. Isolation plate body; 17. Breathable membrane body; 18. Circulation bin body; 19. Guide port; 20. Fixed plate 1; 21. Breathable mesh plate; 22. Catalyst particle end 3; 23. Fixed plate 2; 24. Reflux bin; 25. Reflux port; 26. Reflux pipe body; 27. Injection pipe; 28. Injection valve body; 29. Air outlet pump; 30. Air outlet pipe; 31. Ozone detection equipment.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

Please refer to Figures 1-6. The present invention is a catalytic ozone oxidation reactor, including a reactor body 1. The lower end of the reactor body 1 is connected to a liquid inlet pipe 2, the lower end of the liquid inlet pipe 2 is fixed with a control pump body 3, the other end of the liquid inlet pipe 2 is connected to a mixing pump body 4, an output plate 7 is provided at the lower end of the inner wall of the reactor body 1, a mixing discharge end 8 is fixed on the upper end surface of the output plate 7, and the other end of the mixing discharge end 8 is connected to the mixing pump body 4, and a rotating guide mechanism is provided at the output end of the mixing discharge end 8. A catalytic placement bin 11 is provided at the center of the reactor body 1, and a catalytic treatment mechanism is provided on the inner side of the catalytic placement bin 11. An isolation plate body 16 with a circular arc cross-section is fixed to the upper end of the inner wall of the reactor body 1, a circulation bin body 18 is fixed to the outer side of the catalytic placement bin 11, a circulation treatment mechanism is provided on the inner wall of the circulation bin body 18, and a reflux treatment mechanism is provided at the lower end of the outer surface of the isolation plate body 16.

As shown in Figures 1-3, one side of the mixing pump body 4 is connected to an air duct 5, and the other end of the air duct 5 is connected to an air pump body 6. To ensure that the gas can be supplied, the air pump body 6 and the air duct 5 can guide the gas, which can facilitate subsequent processing.

As shown in Figures 1-4, the rotating guide mechanism includes a connecting pipe 9 and a reflux injection end 10. The connecting pipe 9 is evenly arranged on the upper end surface of the mixing discharge end 8 in a circular shape. The reflux injection end 10 is fixed to the tail end of the connecting pipe 9, and the mixing discharge end 8 and the catalytic placement bin 11 maintain the same vertical center line. In order to ensure the effect of the ozone oxidation reaction, the connecting pipe 9 and the reflux injection end 10 are arranged to rotate the gas and liquid, so that microbubbles are distributed, several times of circulation, and the mass transfer efficiency is high.

As shown in FIG. 2-3, the catalytic treatment mechanism includes a metal mesh body 12, a catalyst particle end 13, metal mesh 14 and catalyst particle end 15, metal mesh 12 is fixed on the inner wall of catalytic placement bin 11, catalyst particle end 13 is arranged at the upper end of metal mesh 12, metal mesh 14 is arranged at the upper end of catalyst particle end 13, and the diameter of metal mesh 14 is smaller than the diameter of metal mesh 12, catalyst particle end 15 is arranged at the upper end of metal mesh 14, the arranged catalyst particle end 13 and catalyst particle end 15 can catalyze ozone to generate a large number of strongly oxidizing hydroxyl radicals, greatly enhancing the oxidation capacity of the equipment, and the particles of catalyst particle end 15 are smaller than those of catalyst particle end 13, thereby improving the utilization rate of ozone, and the arranged metal mesh 12 and metal mesh 14 can separate the catalyst particles, thereby ensuring the ozone catalytic reaction effect, thereby improving the practicability of the equipment.

As shown in Figures 2-6, a breathable membrane body 17 is provided in the center of the interior of the isolation plate body 16, and the breathable membrane body 17 maintains the same vertical center line as the catalytic placement bin 11. A guide port 19 is opened at the upper end of the circulation bin body 18, and the inner wall of the isolation plate body 16 is connected to the guide port 19. The isolation plate body 16 can guide the liquid and can separate and guide the liquid as needed. At the same time, the breathable membrane body 17 can guide the gas for subsequent processing.

As shown in Figures 2-6, the circulation processing mechanism includes a fixed plate 20, a breathable mesh plate 21, a catalyst particle end three 22 and a fixed plate 23. The fixed plate 20 is arranged on the inner wall of the circulation bin body 18, and the other end of the fixed plate 20 is fixed to the inner wall of the reactor body 1. The inclination angle of the fixed plate 20 is 15°. The breathable mesh plate 21 is evenly fixed on the lower end of the fixed plate 20. The catalyst particle end three 22 is arranged on the upper end of the breathable mesh plate 21, and the catalyst particle end three 22 is tightly fitted with the breathable mesh plate 21. The fixed plate 23 is arranged on the inner wall of the circulation bin body 18, and the fixed plate 20 and the fixed plate 23 are distributed in a stepped manner along the inside of the circulation bin body 18. The liquid can be recycled and circulated by the fixed plate 20 and the fixed plate 23, and can be recycled again by the catalyst particle end three 22. The lower end of the circulation bin body 18 is connected to the injection valve body 28 through the injection pipe 27, so that it can be repeatedly treated.

As shown in Figures 2-4, the reflux processing mechanism includes a reflux bin 24, a reflux port 25 and a reflux tube body 26. The reflux bin 24 is fixed on the outer surface of the reactor body 1, and the reflux port 25 is opened on the inner wall of the reflux bin 24. The outer surface of the isolation plate body 16 is connected to the reflux port 25. The reflux tube body 26 is connected to the lower end of the reflux port 25. The reflux tube body 26 is symmetrical about the vertical center line of the reactor body 1. The reflux port 25 on the inner side of the reflux bin 24 can guide the liquid, and at the same time, the reflux tube body 26 can not only be connected to the injection pipe 27, but also can discharge the liquid from the other side of the reflux tube body 26, so as to facilitate subsequent processing.

As shown in Figure 2-3, the tail end of the reflux pipe body 26 is connected to the injection pipe 27, and the tail end of the injection pipe 27 is connected to the injection valve body 28. The injection valve body 28 is evenly distributed along the outer circle of the output plate 7. The inclination angle of the injection valve body 28 is 15°. The set injection pipe 27 can guide the liquid, and the set injection valve body 28 can spray it, which can be circulated in time to improve the reaction treatment effect of the equipment.

As shown in Figures 1-3, an air outlet pump 29 is provided at the center of the upper end surface of the reactor body 1, and the output end of the air outlet pump 29 is connected to an air outlet pipe 30. The air outlet pump 29 cooperates with the air outlet pipe 30 to discharge the gas, thereby facilitating subsequent processing.

As shown in Figures 1-3, an ozone detection device 31 is provided on the outer surface of the outlet pipe 30, and the other end of the ozone detection device 31 is connected to the air duct 5. The ozone detection device 31 detects and makes it convenient for staff to observe and control. The process operation is simple, energy-saving and environmentally friendly, and the working efficiency of the equipment can be guaranteed.

Working principle: Connect the liquid inlet pipe 2 to the lower end of the reactor body 1, and the liquid inlet pipe 2 flows into the reactor The inner part of the body 1 extends to be connected with the mixing pump body 4, and the other side of the mixing pump body 4 is connected with the air inlet pipe 5, and is supplied by the air pump body 6, and a plurality of groups of metal mesh bodies 12 and 14 are arranged inside the catalytic placement bin 11, which can separate the catalyst particles. Since the particle diameter of the catalyst particle end 13 is larger than the diameter of the catalyst particle end 15, it is convenient for subsequent stratification and ozone oxidation. At the same time, the fixed plate 1 20 and the fixed plate 2 23 arranged on the inner side of the circulation bin body 18 are distributed in a stepped manner along the inside of the circulation bin body 18, which can process the subsequent liquid, and the air-permeable mesh plate 21 allows the gas to circulate, and the catalyst particle end 3 22 arranged can further catalyze the liquid, thereby increasing the subsequent liquid reflux effect.

When in use, the control pump body 3 and the air pump body 6 are turned on, and the air pump body 6 can introduce the gas and liquid into the mixing pump body 4, and the mixing pump body 4 introduces the bubbles into the mixing discharge end 8 at the upper end of the output plate 7. The connecting pipe 9 and the reflux injection end 10 arranged at the upper end of the mixing discharge end 8 make the gas and liquid rotate, so that the microbubble distribution, multiple circulation, and high mass transfer efficiency are achieved. At the same time, the catalyst particle end 13 and the catalyst particle end 2 15 arranged on the inner side of the catalytic placement bin 11 can catalyze ozone to generate a large number of strongly oxidizing hydroxyl radicals, greatly enhancing the oxidation capacity of the equipment, and the catalyst The particles at the particle end 15 are smaller than those at the catalyst particle end 13, thereby improving the ozone utilization rate. The isolation plate body 16 can separate the liquid, and the two ends of the inner wall of the isolation plate body 16 are connected to the guide port 19 on the inner side of the circulation bin body 18. Subsequently, the liquid can be recycled through the fixed plate 1 20 and the fixed plate 2 23 arranged inside the circulation bin body 18, and can be processed again through the catalyst particle end 3 22. The liquid can be discharged from the injection pipe 27 and injected by the injection valve body 28, so that the liquid can be repeatedly circulated to ensure the ozone oxidation reaction effect.

At the same time, the outlet pump 29 is turned on. The outlet pump 29 can lead out the gas filtered by the breathable membrane 17, and the liquid accumulated on the inner wall of the reactor body 1 can be discharged from the outer surface of the isolation plate body 16. Introduce the liquid into the reflux bin 24, and the reflux port 25 inside the reflux bin 24 can introduce the liquid into the reflux pipe body 26. If the water outlet on the other side of the lower end of the reflux pipe body 26 is discharged and detected, if residual impurities in the liquid are detected, it will affect the treatment effect of the equipment. At the same time, if a problem occurs, the liquid can be introduced into the injection pipe 27, and the injection valve body 28 connected to the tail end of the injection pipe 27 can spray it, and it can be circulated in time. Finally, the gas led out of the outlet pipe 30 can be detected by the ozone detection equipment 31, and the ozone detection equipment 31 can detect the residual gas for subsequent control. If the ozone detection equipment 31 detects that the gas contains impurities, it can be introduced into the air duct 5, so that the gas can be circulated again.

The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

A catalytic ozone oxidation reactor comprises a reactor body (1), characterized in that the lower end of the reactor body (1) is connected to a liquid inlet pipe (2), the lower end of the liquid inlet pipe (2) is fixed with a control pump body (3), the other end of the liquid inlet pipe (2) is connected to a mixing pump body (4), an output plate (7) is provided at the lower end of the inner wall of the reactor body (1), a mixing discharge end (8) is fixed to the upper end surface of the output plate (7), and the other end of the mixing discharge end (8) is connected to the mixing pump body (4), and the mixing discharge end (8) is connected to the mixing pump body (4). ) is provided with a rotating guide mechanism at the output end, a catalytic placement bin (11) is provided at the center of the interior of the reactor body (1), a catalytic treatment mechanism is provided on the inner side of the catalytic placement bin (11), an isolation plate body (16) having a circular arc cross-section is fixed to the upper end of the inner wall of the reactor body (1), a circulation bin body (18) is fixed to the outer side of the catalytic placement bin (11), a circulation treatment mechanism is provided on the inner wall of the circulation bin body (18), and a reflux treatment mechanism is provided on the lower end of the outer surface of the isolation plate body (16).
The catalytic ozone oxidation reactor according to claim 1 is characterized in that one side of the mixing pump body (4) is connected to an air duct (5), and the other end of the air duct (5) is connected to an air pump body (6).
A catalytic ozone oxidation reactor according to claim 1, characterized in that the rotating guide mechanism comprises a connecting pipe (9) and a reflux injection end (10), the connecting pipe (9) is evenly arranged in a circular ring shape on the upper end surface of the mixing discharge end (8), the reflux injection end (10) is fixed to the tail end of the connecting pipe (9), and the mixing discharge end (8) and the catalytic placement bin (11) maintain the same vertical center line.
A catalytic ozone oxidation reactor according to claim 1, characterized in that the catalytic treatment mechanism comprises a metal mesh body (12), a catalyst particle end (13), a metal mesh body (14) and a catalyst particle end (15), wherein the metal mesh body (12) is fixed on the catalyst particle end. The inner wall of the placement bin (11), the catalyst particle end one (13) is arranged at the upper end of the metal mesh body one (12), the metal mesh body two (14) is arranged at the upper end of the catalyst particle end one (13), and the diameter of the metal mesh body two (14) is smaller than the diameter of the metal mesh body one (12), and the catalyst particle end two (15) is arranged at the upper end of the metal mesh body two (14).
A catalytic ozone oxidation reactor according to claim 1, characterized in that a breathable membrane body (17) is provided in the center of the interior of the isolation plate body (16), and the breathable membrane body (17) and the catalytic placement bin (11) maintain the same vertical center line, and a guide port (19) is provided at the upper end of the circulation bin body (18), and the inner wall of the isolation plate body (16) is connected to the guide port (19).
A catalytic ozone oxidation reactor according to claim 1, characterized in that the circulation treatment mechanism comprises a fixed plate one (20), a breathable mesh plate (21), a catalyst particle end three (22) and a fixed plate two (23), the fixed plate one (20) is arranged on the inner wall of the circulation bin body (18), and the other end of the fixed plate one (20) is fixed to the inner wall of the reactor body (1), the inclination angle of the fixed plate one (20) is 15°, the breathable mesh plate (21) is evenly fixed on the lower end of the fixed plate one (20), the catalyst particle end three (22) is arranged on the upper end of the breathable mesh plate (21), and the catalyst particle end three (22) is tightly fitted with the breathable mesh plate (21), the fixed plate two (23) is arranged on the inner wall of the circulation bin body (18), and the fixed plate one (20) and the fixed plate two (23) are distributed in a stepped manner along the inside of the circulation bin body (18).
A catalytic ozone oxidation reactor according to claim 6, characterized in that the reflux treatment mechanism comprises a reflux bin (24), a reflux port (25) and a reflux pipe body (26), the reflux bin (24) is fixed to the outer surface of the reactor body (1), the reflux port (25) is opened on the inner wall of the reflux bin (24), the outer surface of the isolation plate body (16) is connected to the reflux port (25), the reflux pipe body (26) is connected to the lower end of the reflux port (25), and the reflux pipe body (26) Symmetrical about the vertical center line of the reactor body (1).
A catalytic ozone oxidation reactor according to claim 7, characterized in that the tail end of the reflux pipe body (26) is connected to a spray pipe (27), the tail end of the spray pipe (27) is connected to a spray valve body (28), and the spray valve bodies (28) are evenly distributed along the outer circle of the output plate (7), and the inclination angle of the spray valve body (28) is 15°.
A catalytic ozone oxidation reactor according to claim 1, characterized in that an air outlet pump (29) is provided at the center of the upper end surface of the reactor body (1), and an air outlet pipe (30) is connected to the output end of the air outlet pump (29).
A catalytic ozone oxidation reactor according to claim 9, characterized in that an ozone detection device (31) is provided on the outer surface of the outlet pipe (30), and the other end of the ozone detection device (31) is connected to the air duct (5).