Ozone dosing system based on contact tank effluent backflow

Abstract

The application provides an ozone adding system based on contact tank effluent backflow. The ozone adding system based on contact tank effluent backflow comprises a first circulating assembly, a second circulating assembly, a mother liquor preparation assembly, a pressurizing assembly, a contact tank and a chassis; an ozone generator is used for providing ozone; the first circulating assembly comprises a circulating pump, a plurality of pipelines and a plurality of valves; the mother liquor preparation assembly comprises a support, a mother liquor discharge pipe, a turbulent flow pipe, a preparation tank, a liquid inlet pipe and an air inlet pipe; and the pressurizing assembly comprises a pressurizing pump, a pressure monitoring component and a flow regulating valve. The ozone adding system based on contact tank effluent backflow provided by the application uses the effluent of the contact tank after ozone adding as carrier water, pressurizes the carrier water to a specific pressure through the pressurizing assembly, and maintains the back pressure after mixing, so that the ozone utilization rate is improved, the mother liquor consumption is reduced, the operation stability is ensured, and the core equipment does not need to be modified, and the modification cost is low.

Description

Technical Field

[0001] This invention relates to the field of ozone dosing technology in water treatment, and more particularly to an ozone dosing system based on the effluent recirculation of a contact tank. Background Technology

[0002] Ozone dosing is a process of precisely introducing ozone gas into media such as water and air. Through specialized dosing equipment such as jet injectors and aeration devices, ozone is brought into full contact with the target substances. Its core purpose is to utilize the strong oxidizing properties of ozone to achieve effects such as sterilization, disinfection, degradation of organic matter, odor removal, and decolorization. It is widely used in water treatment, air purification, food processing, and other fields. The dosage needs to be scientifically controlled according to the treatment objectives and media characteristics to ensure effectiveness and safety.

[0003] In ozone disinfection processes for water treatment, the ozone dosing system typically uses raw water as the carrier water. High-concentration ozone mother liquor is mixed with the raw water and then introduced into the treatment system. Existing technologies, such as the ozone dosing control method disclosed in 202111196825.1, primarily adjust the power of the ozone generator through feedback of the raw water flow rate. The carrier water is always untreated raw water.

[0004] However, the above-mentioned existing technologies have the following drawbacks: the raw water does not contain ozone, and when mixed with high-concentration mother liquor, the concentration gradient is large, and ozone is prone to local over-concentration and decomposition, resulting in low utilization rate. Secondly, the mother liquor needs to bear the entire ozone supply load, and the addition flow rate is large, which increases the operating pressure of the mother liquor preparation system. Finally, the pressure drops sharply when mixed at atmospheric pressure, resulting in a large amount of ozone being released and causing ozone waste.

[0005] Therefore, it is necessary to provide an ozone dosing system based on the return flow of effluent from the contact tank to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides an ozone dosing system based on the effluent recirculation of the contact tank, which solves the problems of low ozone utilization, high operating pressure of the mother liquor preparation system, and excessive waste of ozone mixed at atmospheric pressure in the existing technology.

[0007] To solve the above-mentioned technical problems, the ozone dosing system based on the effluent recirculation of the contact tank provided by the present invention includes: an ozone generator, a first circulation component, a second circulation component, a mother liquor preparation component, a pressurization component, a contact tank, and a base frame;

[0008] An ozone generator for providing ozone; the first circulation component includes a circulation pump, multiple pipes and multiple valves; the mother liquor preparation component includes a support, a mother liquor discharge pipe, a turbulence pipe, a preparation tank, a liquid inlet pipe and an air inlet pipe.

[0009] A pressurization assembly, comprising a pressurization pump, a pressure monitoring component, and a flow regulating valve;

[0010] The second circulation component has the same structure as the first circulation component, only the pipeline connection path is different. With the forward and reverse rotation function of the circulation pump, bidirectional delivery is achieved. The entire ozone dosing system with effluent return from the contact tank needs to be equipped with a PLC controller, which is electrically connected to the flow regulating valve, flow monitoring sensor, pressure monitoring component, valve, booster pump, and circulation pump. Based on the carrier water flow and pressure data, the mother liquor dosing flow is adjusted in linkage. Safety valves and pressure gauges also need to be installed on the corresponding pipelines in the ozone dosing system with effluent return from the contact tank to improve system safety. The circulation pump can switch between the inlet and outlet by forward and reverse rotation, thereby achieving delivery in both directions.

[0011] The preparation tank in the mother liquor preparation component is an 80L small-volume pressure tank. The operating pressure of the pressure tank is controlled at 1.0-1.2MPa. The circulation pump flow rate is 6-10 times the mother liquor addition flow rate, corresponding to 50-138.9m³ / h, to prepare an ozone mother liquor of 300-500mg / L. The mother liquor outlet is equipped with a valve and a flow regulating valve. The outlet of the pressurization component is equipped with a pressure monitoring component for real-time feedback of pressure data.

[0012] One end of the pipe of the first circulation component or the second circulation component is connected to the outlet of the contact tank after ozone addition, and the other end is connected to the pressurization component. The carrier water flow rate is monitored by the flow monitor and the carrier water flow rate is controlled to be 10%-20% of the original water flow rate. Both the first circulation component and the second circulation component have pipes connected to the liquid inlet pipe, air inlet pipe or turbulence pipe on the mother liquor preparation component.

[0013] The first circulation component can transport the liquid in the contact tank to the mother liquor preparation component, and the first circulation component can also transport the liquid in the mother liquor preparation component to the contact tank;

[0014] Multiple pipes and valves are used to connect the circulating pump and corresponding equipment. The contact pool, pressurization assembly, circulation assembly and ozone generator can all be installed on the top of the base frame. The valves are connected to the pipes via flanges, which facilitates later maintenance or disassembly.

[0015] The ozone dosing system with effluent return from the contact tank uses a high-precision diffused silicon sensor for pressure monitoring. It collects the pressure data of the booster pump outlet in real time and transmits it to the PLC controller. When the pressure fluctuation exceeds ±0.1 BAR, the controller automatically adjusts the output power of the booster pump and quickly calibrates the pressure to the set value. The 80L small-capacity pressure tank is equipped with a safety valve and a pressure gauge. The safety valve's opening pressure is set at 1.5 MPa to prevent excessive pressure in the tank from causing safety hazards. The pressure gauge has an accuracy class of 0.4, which allows operators to intuitively monitor the pressure status inside the tank.

[0016] During the carrier water recirculation process, the outlet of the contact tank after ozone addition is connected to the pressurization component through the pipeline in the first circulation component. Its flow rate is strictly controlled at 10%-20% of the original water flow rate. The carrier water source is limited to the effluent of the contact tank after ozone addition. This limitation is crucial. If it is replaced with other ozone-containing water such as sedimentation tank effluent, it will not be able to stably share the ozone load. The pressurization component uses a pressurization pump to pressurize the carrier water to 0.5MPa.

[0017] During operation, the ozone dosing system for the effluent return of the contact tank generates ozone through an ozone generator and injects it into the mother liquor preparation component. In this process, the first circulation component transports the carrier water containing ozone from the contact tank to the mother liquor preparation component, where the injected ozone is mixed to prepare the mother liquor. The prepared mother liquor is then injected into the raw water in the contact tank through the first circulation component. By mixing ozone and raw water, the raw water contains a corresponding amount of ozone, thereby achieving the circulation of the ozone-containing liquid and reducing the amount of ozone used in the mother liquor preparation process.

[0018] Preferably, the preparation tank is installed on the top of the support, the mother liquor discharge pipe is installed at the bottom of the preparation tank, the turbulence pipe is installed inside the preparation tank, and the liquid inlet pipe and air inlet pipe are installed on the top of the preparation tank;

[0019] The preparation tank is equipped with an annular perforated structure to reduce the liquid drop speed, while the bottom of the air inlet pipe is equipped with an aeration structure to allow ozone to be sprayed evenly and to mix thoroughly with the liquid, thereby improving the preparation effect of the mother liquor.

[0020] Preferably, a static mixing tank is mounted on the top of the base frame, a top cover is mounted on the top of the static mixing tank, and a conveying structure with an injection pipe is mounted on the front of the static mixing tank.

[0021] The conveying structure can transport the mixed liquid to the corresponding location, which can be a contact pool or a mother liquor preparation component. The static mixing tank adopts a multi-layer structure, with an outer protective layer, a middle insulation layer, and an inner metal surface coated with an anti-corrosion and wear-resistant coating.

[0022] The top cover is fixed to the static mixing tank with bolts to ensure stable pressure and no leakage during the mixing process.

[0023] Preferably, a first inlet pipe and a second inlet pipe are installed on the top of the top cover, a liquid level monitoring component is installed on the top of the top cover, and a driving structure is installed on the top of the top cover;

[0024] The liquid level monitoring component is used to monitor the liquid level height, and the drive structure is used to provide rotational driving force for the stirring component. The top of the inlet pipe is equipped with a flange for easy connection with the corresponding pipe. The drive structure includes a housing and a motor, which can drive the stirring component to rotate, and the rotation speed can be controlled.

[0025] Preferably, the output end of the drive structure is equipped with a stirring assembly, which includes a rotating shaft, a fixing frame, and stirring blades. The fixing frame is used to mount the stirring blades on the outer surface of the rotating shaft.

[0026] The shape of the stirring blades is determined according to the requirements. Multiple stirring blades are installed on the outer surface of each fixed frame to achieve thorough mixing of the liquid.

[0027] Preferably, the liquid level monitoring assembly includes a fixed base and a liquid level monitoring component, wherein the fixed base is used to install the liquid level monitoring component on the top of the top cover;

[0028] The monitoring end of the liquid level monitoring component is located at the bottom of the top cover, and a hole is opened at the top of the top cover for the liquid level monitoring component to pass through. The connection is sealed.

[0029] Preferably, a flow-diverting component is installed at the bottom of the top cover, and a diffusion component is installed inside the static mixing tank;

[0030] The diversion assembly allows liquid to flow evenly into the static mixing tank through two inlet pipes, rather than being delivered from a single location.

[0031] Preferably, the diversion assembly includes a diversion ring and a plurality of diversion holes, the diversion holes being formed at the bottom of the diversion ring;

[0032] The top of the flow divider ring is connected to the first inlet pipe and the second inlet pipe, which is used to uniformly deliver the liquid into the interior of the static mixing tank. The middle of the flow divider ring is hollow, and the diameter of the flow divider holes varies, with the specific size depending on the requirements.

[0033] Preferably, the diffusion assembly includes a support ring and a diffuser, the support ring being used to mount the diffuser inside a static mixing tank;

[0034] The support ring is fixed inside the static mixing tank by welding or gluing.

[0035] Preferably, the diffuser has a through hole with a diameter of 1.6mm × 50mm;

[0036] The diffuser is made of corrosion-resistant ceramic material, and the pores on the surface are arranged in a honeycomb pattern, which can disperse the ozone mother liquor into tiny droplets, further increasing the contact area with the carrier water.

[0037] Compared with related technologies, the ozone dosing system based on the effluent recirculation of the contact tank provided by this invention has the following beneficial effects:

[0038] This invention provides an ozone dosing system based on the effluent recirculation of a contact tank. To improve the stability of ozone mother liquor preparation and increase ozone utilization, a first circulation component is used to inject the mother liquor from the mother liquor preparation component into the contact tank, and simultaneously inject ozone-containing liquid from the contact tank into the mother liquor preparation component. This allows the addition of ozone-containing raw water during mother liquor preparation, reducing the amount of ozone required in subsequent preparation processes and thus increasing ozone utilization. During dosing, a pressurization component maintains the dosing pressure, improving dosing stability. This design uses the effluent from the contact tank after ozone dosing as the carrier water, pressurizing it to a specific pressure through the pressurization component and maintaining this back pressure after mixing. This improves ozone utilization, reduces mother liquor consumption, ensures stable operation, and requires no modification to core equipment, resulting in low modification costs. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the first embodiment of the ozone dosing system based on the effluent recirculation of the contact tank provided by the present invention;

[0040] Figure 2 Provided for the present invention Figure 1 An enlarged view of point A shown;

[0041] Figure 3 Provided for the present invention Figure 1 An enlarged view of point B shown;

[0042] Figure 4 Provided for the present invention Figure 1 An enlarged view of point C shown;

[0043] Figure 5 This is a schematic diagram of the second embodiment of the ozone dosing system based on the effluent recirculation of the contact tank provided by the present invention;

[0044] Figure 6 A schematic diagram of the dispersing component is provided for this invention;

[0045] Figure 7 Provided for the present invention Figure 6 An enlarged view of point D is shown below;

[0046] Figure 8 Provided for the present invention Figure 6 A magnified view of point F shown.

[0047] The diagram is labeled as follows: 1. Ozone generator; 2. First circulation assembly; 201. Circulation pump; 202. Pipeline; 203. Valve; 3. Second circulation assembly; 4. Mother liquor preparation assembly; 401. Support; 402. Mother liquor discharge pipe; 403. Turbulence pipe; 404. Preparation tank; 405. Liquid inlet pipe; 406. Air inlet pipe; 5. Pressurization assembly; 501. Pressurization pump; 502. Pressure monitoring component; 503. Flow regulating valve; 6. Contact tank; 7. Injection pipe; 8. 801. Liquid level monitoring assembly, 802. Fixed base, 803. Liquid level monitoring component, 9. Drive structure, 10. Static mixing tank, 11. Top cover, 12. First inlet pipe, 13. Second inlet pipe, 14. Conveying structure, 15. Base frame, 16. Diffusion assembly, 161. Support ring, 162. Diffusion device, 17. Divider assembly, 171. Divider ring, 172. Divider hole, 18. Stirring assembly, 181. Rotating shaft, 182. Fixed frame, 183. Stirring blade. Detailed Implementation

[0048] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0049] First Embodiment

[0050] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 This is a schematic diagram of the first embodiment of the ozone dosing system based on the effluent recirculation of the contact tank provided by the present invention; Figure 2 Provided for the present invention Figure 1 An enlarged view of point A shown; Figure 3 Provided for the present invention Figure 1 An enlarged view of point B shown; Figure 4 Provided for the present invention Figure 1 The enlarged view at point C is shown. The ozone dosing system based on the effluent recirculation of the contact tank includes: an ozone generator 1, a first circulation component 2, a second circulation component 3, a mother liquor preparation component 4, a pressurization component 5, a contact tank 6, and a base frame 15;

[0051] Ozone generator 1, which is used to provide ozone, the first circulation component 2 includes a circulation pump 201, multiple pipes 202 and multiple valves 203, and the mother liquor preparation component 4 includes a support 401, a mother liquor discharge pipe 402, a turbulence pipe 403, a preparation tank 404, a liquid inlet pipe 405 and an air inlet pipe 406.

[0052] The pressurization assembly 5 includes a pressurization pump 501, a pressure monitoring component 502, and a flow regulating valve 503;

[0053] The second circulation component 3 has the same structure as the first circulation component 2, except that the pipeline distribution is different according to the requirements, so that the conveying direction is different. The entire ozone dosing system with the effluent return of the contact tank needs to be equipped with a PLC controller, which is electrically connected to the flow regulating valve 503, the flow monitoring sensor, the pressure monitoring component 502, the valve 203, the pressurizing pump 501, and the circulation pump 201 respectively. Based on the carrier water flow and pressure data, the mother liquor dosing flow is adjusted in linkage. In the ozone dosing system with the effluent return of the contact tank, safety valves and pressure gauges also need to be installed on the corresponding pipelines to improve the system safety.

[0054] The preparation tank 404 in the mother liquor preparation component 4 is an 80L small-volume pressure tank. The operating pressure of the pressure tank is controlled at 1.0-1.2MPa. The flow rate of the circulation pump 201 is 6-10 times the mother liquor addition flow rate, corresponding to 50-138.9m³ / h, to prepare an ozone mother liquor of 300-500mg / L. A valve and a flow regulating valve 503 are installed at the mother liquor outlet. A pressure monitoring component 502 is installed at the outlet of the pressurization component 5 for real-time feedback of pressure data.

[0055] One end of the pipe 202 of the first circulation component 2 or the second circulation component 3 is connected to the outlet of the contact tank 6 after ozone addition, and the other end is connected to the pressurization component 5. The carrier water flow rate is monitored by the flow monitor and the carrier water flow rate is controlled to be 10%-20% of the original water flow rate. Both the first circulation component 2 and the second circulation component 3 are connected to the liquid inlet pipe 405, air inlet pipe 406 or turbulence pipe 403 on the mother liquor preparation component 4 by the pipe 202.

[0056] The carrier water is the effluent from contact tank 6 after ozone addition. The carrier water is pressurized to 0.5MPa, and the system back pressure is maintained at this pressure after mixing. If the pressure deviates, the ozone release will increase, which will not improve the utilization rate. The PLC controller links the carrier water flow rate, pressure and mother liquor flow rate to achieve precise matching. Stable back pressure and low concentration gradient mixing reduce the ozone release to 2%-3% and increase the utilization rate to 95%-97%. The ozone contained in the effluent from contact tank 6 can share the load, reducing the mother liquor consumption by 10%-20%. The PLC controller linkage control ensures that the raw water ozone concentration deviation is ≤±10mg / L, and the operation is stable. At the same time, no core equipment needs to be modified. Only the reflux and pressurization component 5 is added, which reduces the modification cost. The pressurization component 5 is connected to the mother liquor preparation component 4, the circulation component and contact tank 6 through pipe 202. It is used to pressurize the carrier water to 0.5MPa and help maintain the internal pressure stability of the mother liquor preparation component. At the same time, it can control the internal pressure value of the mother liquor preparation component 4.

[0057] The first circulation component 2 can transport the liquid in the contact tank 6 to the mother liquor preparation component 4, and the first circulation component 2 can also transport the liquid in the mother liquor preparation component 4 to the contact tank 6.

[0058] Multiple pipes 202 and multiple valves 203 are used to connect the circulation pump 201 and the corresponding equipment. The contact pool 6, pressurization assembly 5, circulation assembly and ozone generator 1 can all be installed on the top of the base frame 15.

[0059] The preparation tank 404 is installed on the top of the support 401, the mother liquor discharge pipe 402 is installed at the bottom of the preparation tank 404, the turbulence pipe 403 is installed inside the preparation tank 404, and the liquid inlet pipe 405 and the air inlet pipe 406 are installed on the top of the preparation tank 404.

[0060] The inlet end of the turbulence tube 403 is located on the outer surface of the preparation tank 404.

[0061] The working principle of the ozone dosing system based on the effluent recirculation of the contact tank provided by this invention is as follows:

[0062] The first circulation component 2 can inject the mother liquor from the mother liquor preparation component 4 into the contact tank 6, and simultaneously inject the ozone-containing liquid from the contact tank 6 into the mother liquor preparation component 4. This allows for the addition of ozone-containing raw water during mother liquor preparation, reducing the amount of ozone required in subsequent preparation processes and thus increasing ozone utilization. During the dosing process, the pressurization component 5 maintains the dosing pressure, improving dosing stability. Before dosing, the raw water flow rate is 2083.33 m³ / h, the target ozone concentration is 2 mg / L, and the ozone concentration in the effluent of the contact tank 6 is stable at 2 mg / L. Valve 203 in the first circulation component 2 is opened, and the pressurization is initiated simultaneously. Component 5 is pressurized to 0.5MPa. During this process, the carrier water flow rate is adjusted to 208.33m³ / h via flow regulating valve 503, which is 10% of the raw water flow rate. Then, ozone generator 1, first circulation component 2, and second circulation component 3 are started to maintain the pressure in preparation tank 404 at 1.2MPa. The flow rate of circulation pump 201 is maintained at 50m³ / h, which is 6 times the mother liquor addition flow rate, to prepare 300mg / L ozone mother liquor. Then, the mother liquor addition flow rate is adjusted to 12.50m³ / h via flow regulating valve 503. After the mother liquor and carrier water are mixed in a static mixing tank, they are introduced into the raw water main pipeline. When the carrier water flow rate fluctuates by ±5%, the ozone supply is ensured to be stable.

[0063] Compared with related technologies, the ozone dosing system based on the effluent recirculation of the contact tank provided by this invention has the following beneficial effects:

[0064] To improve the stability of ozone mother liquor preparation and increase ozone utilization, a first circulation component 2 is used. This allows the mother liquor from the mother liquor preparation component 4 to be injected into the contact tank 6, while simultaneously injecting ozone-containing liquid from the contact tank 6 into the mother liquor preparation component 4. This process adds ozone-containing raw water during mother liquor preparation, reducing the amount of ozone required in subsequent preparation steps and thus increasing ozone utilization. During the dosing process, a pressurizing component 5 maintains the dosing pressure, improving stability. This design uses the effluent from the contact tank 6 after ozone dosing as the carrier water. The pressurizing component 5 pressurizes the water to a specific pressure, mixes it, and maintains this back pressure. This improves ozone utilization, reduces mother liquor consumption, ensures stable operation, and eliminates the need for core equipment modifications, resulting in lower modification costs.

[0065] Second Embodiment

[0066] Please refer to the following: Figures 5-6 - Figures 7-8 , Figure 5 This is a schematic diagram of the second embodiment of the ozone dosing system based on the effluent recirculation of the contact tank provided by the present invention; Figure 6 A schematic diagram of the dispersing component is provided for this invention; Figure 7 Provided for the present invention Figure 6 An enlarged view of point D is shown below;

[0067] Figure 8 Provided for the present invention Figure 6 The enlarged view at point F shows an ozone dosing system based on the contact tank effluent recirculation provided in the first embodiment of this application. The second embodiment of this application proposes another ozone dosing system based on the contact tank effluent recirculation. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0068] Specifically, the ozone dosing system based on the return of effluent from the contact pool provided in the second embodiment of this application is different in that a static mixing tank 10 is installed on the top of the base frame 15, a top cover 11 is installed on the top of the static mixing tank 10, and a conveying structure 14 with an injection pipe 7 is installed on the front of the static mixing tank 10.

[0069] The conveying structure 14 can transport the mixed liquid to the corresponding location, which can be the contact pool 6 or the mother liquor preparation component 4, depending on the requirements. The conveying structure 14 includes a shell and a conveying pump.

[0070] Please refer to Figure 5 The top of the top cover 11 is equipped with a first inlet pipe 12 and a second inlet pipe 13, a liquid level monitoring component 8 is installed on the top of the top cover 11, and a drive structure 9 is installed on the top of the top cover 11.

[0071] The liquid level monitoring component 8 is used to monitor the liquid level height, and the drive structure 9 is used to provide rotational driving force for the stirring component 18.

[0072] Please refer to Figure 5 , Figure 6 and Figure 8 The output end of the drive structure 9 is equipped with a stirring assembly 18, which includes a rotating shaft 181, a fixing frame 182 and stirring blades 183. The fixing frame 182 is used to install the stirring blades 183 on the outer surface of the rotating shaft 181.

[0073] The shape of the stirring blade 183 is determined according to requirements.

[0074] Please refer to Figure 5 and Figure 6 The liquid level monitoring component 8 includes a fixed base 801 and a liquid level monitoring component 802. The fixed base 801 is used to install the liquid level monitoring component 802 on the top of the top cover 11.

[0075] The monitoring end of the liquid level monitoring component 802 is located at the bottom of the top cover 11.

[0076] Please refer to Figure 6 A diversion assembly 17 is installed at the bottom of the top cover 11, and a diffusion assembly 16 is installed inside the static mixing tank 10.

[0077] The diffuser assembly 16 and the stirring assembly 18 are rotatably coupled. The diffuser assembly 16 is fixed inside the static mixing tank 10 and located above the stirring blade 183, so it does not affect the operation of the stirring assembly 18.

[0078] Please refer to Figure 6 and Figure 7 The diversion assembly 17 includes a diversion ring 171 and a plurality of diversion holes 172, wherein the diversion holes 172 are formed at the bottom of the diversion ring 171;

[0079] The top of the diversion ring 171 is connected to the first inlet pipe 12 and the second inlet pipe 13 for uniformly delivering liquid into the interior of the static mixing tank 10.

[0080] Please refer to Figure 6 and Figure 7 The diffusion assembly 16 includes a support ring 161 and a diffuser 162, wherein the support ring 161 is used to mount the diffuser 162 inside the static mixing tank 10;

[0081] The diffuser 162 has a hole in the middle through which the rotating shaft 181 passes.

[0082] The diffuser 162 has a through hole with a diameter of 1.6 mm × 50 mm.

[0083] Compared with related technologies, the ozone dosing system based on the effluent recirculation of the contact tank provided by this invention has the following beneficial effects:

[0084] To improve the mixing effect of the mother liquor, the outlet of the pressurizing component 5 and the outlet of the mother liquor discharge pipe 402 are connected to the static mixing tank 10 through the first inlet pipe 12 and the second inlet pipe 13. After the liquid enters the interior of the static mixing tank 10, it is first dispersed by the diffusion component 16, and then the liquid and ozone are fully mixed by the stirring component 18. Finally, it is injected into the contact tank 6 or the subsequent processing position through the conveying structure 14. During this process, the liquid level monitoring component 8 can monitor the internal volume of the static mixing tank 10 in real time. This design can fully mix the pressurized carrier water and ozone, improving the uniformity and effect of subsequent addition.

[0085] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An ozone dosing system based on the effluent recirculation of a contact tank, characterized in that, include: Ozone generator, first circulation assembly, second circulation assembly, mother liquor preparation assembly, pressurization assembly, contact tank and base frame; An ozone generator for providing ozone; the first circulation component includes a circulation pump, multiple pipes and multiple valves; the mother liquor preparation component includes a support, a mother liquor discharge pipe, a turbulence pipe, a preparation tank, a liquid inlet pipe and an air inlet pipe. A pressurization assembly, comprising a pressurization pump, a pressure monitoring component, and a flow regulating valve.

2. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 1, characterized in that, The preparation tank is installed on the top of the support, the mother liquor discharge pipe is installed at the bottom of the preparation tank, the turbulence pipe is installed inside the preparation tank, and the liquid inlet pipe and air inlet pipe are installed on the top of the preparation tank.

3. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 1, characterized in that, A static mixing tank is mounted on the top of the base frame, a top cover is mounted on the top of the static mixing tank, and a conveying structure with an injection pipe is mounted on the front of the static mixing tank.

4. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 3, characterized in that, The top of the top cover is equipped with a first inlet pipe and a second inlet pipe, a liquid level monitoring component, and a drive structure.

5. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 4, characterized in that, The output end of the drive structure is equipped with a stirring assembly, which includes a rotating shaft, a fixed frame, and stirring blades. The fixed frame is used to mount the stirring blades on the outer surface of the rotating shaft.

6. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 4, characterized in that, The liquid level monitoring assembly includes a fixed base and a liquid level monitoring component. The fixed base is used to install the liquid level monitoring component on the top of the top cover.

7. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 3, characterized in that, A flow divider is installed at the bottom of the top cover, and a diffusion assembly is installed inside the static mixing tank.

8. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 7, characterized in that, The diversion assembly includes a diversion ring and multiple diversion holes, the diversion holes being formed at the bottom of the diversion ring.

9. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 7, characterized in that, The diffusion assembly includes a support ring and a diffuser, the support ring being used to mount the diffuser inside a static mixing tank.

10. The ozone dosing system based on the effluent recirculation of the contact tank according to claim 9, characterized in that, The diffuser has a through hole with a diameter of 1.6mm × 50mm.

Images