An ozone micro-nano catalytic oxidation decomposition device

Abstract

The present application relates to the technical field of sewage treatment, and in particular to an ozone micro-nano catalytic oxidation decomposition device, which includes: a reaction tank having a reaction chamber formed therein and provided with a drain pipe for discharging treated sewage; a catalyst layer including a multi-layer elastic frame, the multi-layer elastic frame being sequentially arranged along the vertical direction of the reaction tank, gaps being formed between the multi-layer elastic frames, the elastic deformation of the multi-layer elastic frame gradually decreasing in the direction away from the bottom wall of the reaction tank, and the elastic frame being filled with a catalyst; a waste pipe provided on the reaction tank and connected to the reaction chamber for waste discharge; an ozone generator for generating ozone; a water inlet pipe connected to a source of pre-treated and impurity-removed sewage; a micro-nano bubble generator provided outside the reaction tank, the air inlet end being connected to the water inlet pipe and the exhaust end of the ozone generator, and the air outlet end being connected to the bottom of the reaction tank. The present application has the effect of improving the efficiency of catalytic oxidation.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to an ozone micro-nano catalytic oxidation decomposition device. Background Art

[0002] Currently, ozone micro-nanocatalytic oxidation and decomposition technology is attracting widespread attention in the wastewater treatment sector due to its high efficiency and environmental friendliness. This technology utilizes the strong oxidizing properties of ozone and the high mass transfer efficiency of micro-nano bubbles, combined with the catalytic action of catalysts, to rapidly decompose organic pollutants in wastewater.

[0003] In the existing technology, the catalyst is usually fixed at a certain position in the reactor, and the sewage and ozone gas react through the catalyst layer; due to the fixed position of the catalyst, the flow path of the ozone gas in the reactor is restricted, resulting in some ozone failing to fully contact the catalyst, thereby reducing the efficiency of catalytic oxidation. Summary of the Invention

[0004] In order to improve the efficiency of catalytic oxidation, the present application provides an ozone micro-nano catalytic oxidation decomposition device.

[0005] The present application provides an ozone micro-nano catalytic oxidation decomposition device, which adopts the following technical solution:

[0006] An ozone micro-nano catalytic oxidation decomposition device, comprising:

[0007] A reaction tank having a reaction chamber formed therein and provided with a drain pipe for discharging the treated sewage;

[0008] The catalyst layer includes a multi-layer elastic frame, wherein the multi-layer elastic frame is sequentially arranged in the vertical direction of the reaction tank, gaps are formed between the multi-layer elastic frames, the area of ​​the multi-layer elastic frame gradually decreases in the direction away from the bottom wall of the reaction tank, and the elastic deformation of the multi-layer elastic frame gradually decreases in the direction away from the bottom wall of the reaction tank, and the multi-layer elastic frame can deform and fit as the water level rises, and an accommodating cavity is formed on the elastic frame, and the accommodating cavity is filled with a catalyst;

[0009] A waste pipe is provided on the reaction tank and is in communication with the reaction chamber for waste discharge;

[0010] an ozone generator for generating ozone;

[0011] Water inlet pipe, connected to the sewage source after pre-treatment and impurity removal;

[0012] The micro-nano bubble generator is arranged outside the reaction tank, with an air inlet end connected to the water inlet pipe and the exhaust end of the ozone generator, and an air outlet end connected to the bottom of the reaction tank.

[0013] By adopting the above technical solution, the sewage first undergoes a pretreatment stage to remove large particles of impurities and suspended matter, so as to ensure that the sewage entering the reaction tank is relatively clean and avoid clogging the pipes or affecting the performance of the catalyst; the ozone generator starts working to produce ozone gas; at the same time, the pretreated sewage flows into the micro-nano bubble generator through the water inlet pipe; the micro-nano bubble generator mixes the ozone gas with the sewage and refines the ozone gas into micro-nano bubbles. These bubbles have a higher specific surface area and mass transfer efficiency, and can more effectively contact the organic matter in the sewage and undergo oxidation reactions.

[0014] Sewage containing micro-nano ozone bubbles enters the bottom of the reaction tank through a pipe. As the sewage rises in the reaction tank, it passes through the catalyst layers on the multi-layer elastic frame in sequence. Due to the design of the elastic frame, there are gaps between the multiple layers, which helps to evenly distribute and flow the sewage in the catalyst layer, while reducing flow resistance. The catalyst is filled in the accommodating cavity. When the sewage flows through, the ozone bubbles come into contact with the catalyst surface. The catalyst catalyzes the decomposition of ozone to produce strong oxidizing species such as hydroxyl free radicals. These species undergo oxidation reactions with organic matter in the sewage, decomposing it into harmless substances. As the water level rises, the elastic frame undergoes elastic deformation and shakes with the flow of water, allowing the ozone, sewage and catalyst to fully contact each other and undergo catalytic oxidation decomposition reaction. The sewage treated with catalytic oxidation decomposition is discharged from the drain pipe, and the water quality has been significantly improved at this time. Solid waste or residues that may be generated during the reaction are discharged through the waste pipe for further treatment or disposal.

[0015] The nanobubble generator increases the contact area and mass transfer efficiency between ozone and sewage, allowing ozone to react more fully with organic matter in sewage. The catalyst layer accelerates the decomposition and oxidation reaction of ozone, improving treatment efficiency. The multi-layer elastic frame design gives the catalyst layer a certain degree of elasticity and adaptability, allowing it to adapt to sewage flow under different flow and pressure conditions, ensuring effective contact between the catalyst and ozone bubbles. The accommodating cavity formed on the elastic frame ensures the uniform distribution of the catalyst, avoids local overload or blockage, and extends the service life of the catalyst.

[0016] By improving treatment efficiency, ozone consumption and treatment time are reduced, thereby reducing energy consumption; the recycling of catalysts reduces waste generation, which is in line with the concepts of environmental protection and sustainable development; the device is suitable for treating sewage of different types and concentrations and has high adaptability and flexibility; by adjusting the output of the ozone generator, the parameters of the micro-nano bubble generator, and the type and dosage of the catalyst, it can optimize the treatment for different sewage water qualities.

[0017] When the water level rises, the multi-layer elastic frame can deform and fit, making the contact area between the catalyst layer and the sewage more uniform and extensive; this fitting design helps to evenly distribute ozone bubbles in the catalyst layer, increases the contact opportunity between ozone and the catalyst, and thus enhances the efficiency of the catalytic oxidation reaction; this design increases the flexibility and adaptability of the device, enabling it to meet the needs of sewage treatment with different flow rates and concentrations; due to the fitting design of the elastic frame, the flow resistance of sewage when flowing through the catalyst layer is reduced, reducing energy consumption; at the same time, due to the improvement in catalytic efficiency, the consumption of ozone is reduced, further reducing operating costs; the fitting design of the elastic frame avoids local overload or blockage of the catalyst layer, reducing catalyst wear and failure; and through the setting of the elastic frame, the catalyst forms a fine and curved channel, slowing down the flow rate of sewage and ozone, facilitating increased contact between ozone, catalyst and sewage, and increasing catalytic oxidation efficiency.

[0018] Optionally, the reaction tank is provided with a cyclone mechanism, and the cyclone mechanism comprises:

[0019] A swirl blade is rotatably disposed on the upper wall of the reaction tank;

[0020] The power assembly is arranged on the reaction tank and connected to the swirl blades to drive the swirl blades to rotate.

[0021] By adopting the above technical solution, the cyclone mechanism can form a strong cyclone field in the reaction tank through the rotation of the cyclone blades. This cyclone field helps the ozone micro-nano bubbles to mix more fully with the organic matter in the sewage, thereby improving the rate and efficiency of the oxidation reaction.

[0022] At the same time, the cyclone field can also promote the mutual collision and coagulation of suspended matter, colloids and other particles in the sewage, which is beneficial to subsequent treatment and separation; the cyclone mechanism can increase the relative movement speed between the sewage and the catalyst, thereby improving the mass transfer efficiency; under the action of the cyclone field, the ozone micro-nano bubbles can be more evenly distributed in the sewage, increasing the contact opportunities with the catalyst, and cutting the ozone and sewage to form a cyclone, which can break up the ozone, facilitate the decomposition of the sewage by ozone and thus improve the efficiency of the catalytic oxidation reaction.

[0023] The rotation of the cyclone mechanism can generate a certain centrifugal force, so that the particles and bubbles in the sewage move toward the wall of the reaction tank under the action of centrifugal force, forming a certain concentration gradient; this concentration gradient helps to optimize the reaction conditions, so that the catalytic oxidation reaction proceeds under more favorable conditions, thereby improving the treatment effect; the cyclone mechanism can maintain the dynamic balance of the sewage in the reaction tank, avoiding the decline in treatment effect caused by stagnant or poor flow of sewage; at the same time, the cyclone mechanism can also reduce the blockage and pollution of the catalyst layer by sediments and suspended matter in the sewage to a certain extent, maintaining the long-term stability and activity of the catalyst; under the action of the cyclone field, the sludge particles in the sewage will be accelerated by the centrifugal force to settle; this helps to reduce the residence time of the sludge in the reaction tank, reduces the risk of sludge pollution to the catalyst layer, and is also beneficial to the subsequent treatment and disposal of the sludge.

[0024] Optionally, the end of the swirl blade away from its own rotation axis is inclined toward the end close to the elastic frame.

[0025] By adopting the above technical solution, the inclined swirl blades can form a more uniform swirl field in the reaction tank. When the sewage flows through the swirl blades, due to the inclination angle of the blades, the sewage will be subjected to a tangential force pointing in the direction of the elastic frame, which helps the sewage to form a more stable swirl above the catalyst layer.

[0026] The inclined swirl blades enable the sewage to contact the catalyst at a more appropriate angle and speed when flowing through the catalyst layer; this helps to increase the collision frequency and efficiency of ozone micro-nano bubbles with the catalyst surface, thereby enhancing the catalytic oxidation reaction.

[0027] The inclined design of the swirl blades helps to disperse the ozone micro-nano bubbles more evenly into the sewage, and may further refine the bubbles under the action of the swirl field; the tiny bubbles have a larger specific surface area and can more effectively contact with the organic matter in the sewage and undergo oxidation reactions.

[0028] Due to the optimization of the cyclonic flow field and the enhanced contact between the catalyst layer and the sewage, the inclined cyclonic blades help to improve the efficiency of the entire sewage treatment process; this means that better water purification results can be achieved within the same treatment time.

[0029] Optionally, the power assembly can drive the swirl blades to rotate at variable speeds.

[0030] By adopting the above technical solution and controlling the variable speed motion, the excessive adsorption of the cyclone field on the elastic frame can be reduced, and the occurrence of cavities in the middle can be reduced. The variable speed rotating cyclone blades can form cyclone fields of different intensities and directions at different speeds; this change helps to better mix the sewage and ozone micro-nano bubbles, allowing them to contact and react more fully.

[0031] By rotating at variable speeds, the swirl blades can more effectively transport ozone micro-nano bubbles to the catalyst layer, increasing the contact time and contact area between the bubbles and the catalyst; this helps to increase the rate and efficiency of the catalytic oxidation reaction, thereby enhancing the treatment effect.

[0032] Optionally, a jet mechanism is provided at the bottom of the reaction tank, and the jet mechanism includes:

[0033] A jet tube is provided at the bottom of the reaction tank and is connected to the air outlet of the micro-nano bubble generator or the water inlet pipe;

[0034] The jet head is arranged on the jet tube and faces the elastic frame.

[0035] By adopting the above technical solution, when sewage enters the reaction tank through the water inlet pipe, part of the sewage will flow through the jet tube to the jet head; at the same time, the ozone micro-nano bubbles generated by the micro-nano bubble generator will also be connected to the jet tube through a specific pipe, mixed with the sewage and flow to the jet head together; under the action of the jet head, the sewage mixed with ozone micro-nano bubbles will be sprayed toward the elastic frame at a high speed, causing the elastic frame to vibrate, and then changing the flow direction of ozone and sewage between the catalyst layer; the ozone micro-nano bubbles will rapidly decompose under the action of the catalyst, producing active substances such as free radicals with strong oxidizing properties; these active substances will undergo oxidation reactions with organic matter in the sewage, decomposing it into harmless or low-toxic small molecules.

[0036] Optionally, the jet tube is provided with a regulating pump for regulating pressure.

[0037] By adopting the above technical solution, the flow rate of the liquid or gas ejected from the jet tube is adjusted by adjusting the pump, the vibration frequency of the elastic frame is changed, and at the same time, the water disturbance effect can be achieved.

[0038] Optionally, a plurality of impact heads are provided on the jet tube, and the plurality of impact heads are inclined toward the side wall of the reaction tank and form an angle with the bottom wall of the reaction tank. The impact heads impact the side wall of the reaction tank, and can form a water curtain at the air outlet end of the micro-nano bubble generator located on the bottom wall of the reaction tank.

[0039] By adopting the above technical solution, the water pump and ozone generator are first activated to ensure a stable supply of sewage and ozone to the jet tube. The mixture of sewage and ozone micro-nano bubbles flows through the jet tube to each impact head. The mixture impacts the side wall of the reaction tank at high speed, producing a strong scouring effect. At the same time, due to the inclined design and angle of the impact head, some of the mixture rebounds upward, forming a water curtain near the outlet of the micro-nano bubble generator. The ozone micro-nano bubbles in the water curtain fully contact with organic matter in the sewage and undergo an oxidation reaction under the action of the catalyst. When expelling debris, this operation can reduce the blockage of the micro-nano bubble generator outlet by debris, while also cleaning it and scouring the side wall of the reaction tank.

[0040] The inclined design and angle of the impact head enable the mixture to impact the side wall of the reaction tank at different angles and directions, thereby enhancing the mixing and dispersion effect of sewage and ozone micro-nano bubbles.

[0041] When flushing the elastic frame, the vibration of the elastic frame is increased by the impact head, and as the swirl blade rotates, the water flow passing through the impact head is sputtered, so that the water flow is fully dispersed on the elastic frame. The micro-nano bubble generator is used intermittently to impact the elastic frame with bubbles, and the swirl blade is used to redirect the micro-nano bubbles and sewage, so that the elastic frame is cleaned in multiple directions. The cleaning is combined with bubbles and water, so that the adhesion of pollutants on the surface of the elastic frame is reduced. The gaps in the multi-layer elastic frame make the catalyst layer easy to move and clean. At the same time, the cleaning water or cleaning bubbles can be retained in the gaps between the layers, thereby improving the cleaning effect.

[0042] Optionally, a baffle is provided on the inner side wall of the reaction tank, and the baffle is used to reduce the vortex formed at the edge of the elastic frame.

[0043] By adopting the above technical solution, the presence of the baffle effectively changes the fluid flow pattern within the reaction tank, especially in the vortex areas that are prone to forming at the edges of the elastic frame. By guiding the fluid flow, the baffle can reduce the vortex intensity in these areas, making the flow field distribution within the entire reaction tank more uniform. The presence of vortex may interfere with the effective contact between the sewage and the catalyst, thereby affecting the progress of the catalytic oxidation reaction. The baffle reduces this interference by reducing the vortex intensity, allowing the sewage to more fully contact the catalyst, thereby improving catalytic efficiency. By reducing the vortex intensity, the baffle helps to balance the pressure distribution within the equipment and improve the stability of the equipment. The vortex may cause erosion and wear on the inner wall of the equipment and components such as the elastic frame. The baffle helps to extend the life of the equipment by reducing the direct impact of the vortex on the equipment.

[0044] Optionally, the baffle is elastic.

[0045] By adopting the above technical solution, the elastic baffle can better adapt to the dynamic changes of the fluid inside the reaction tank; during the flow of the fluid, the baffle may be subjected to different degrees of impact and pressure, and the elastic connection can absorb these impact forces to prevent the baffle from being damaged due to uneven force; and it can change the path of the rotating flow field, increase the disturbance to the elastic frame, and make the elastic frame sway in a wave-like manner, thereby increasing the contact between ozone, catalyst and sewage.

[0046] In summary, this application includes at least one of the following beneficial technical effects:

[0047] 1. The nanobubble generator increases the contact area between ozone and sewage and increases mass transfer efficiency, allowing ozone to react more fully with organic matter in sewage. The catalyst layer accelerates ozone decomposition and oxidation reactions, improving treatment efficiency. The multi-layer elastic frame design gives the catalyst layer a certain degree of flexibility and adaptability, allowing it to adapt to sewage flows under different flow rates and pressures, ensuring effective contact between the catalyst and ozone bubbles. The accommodating cavity formed on the elastic frame ensures uniform distribution of the catalyst, avoids local overload or blockage, and extends the catalyst's service life.

[0048] 2. When sewage enters the reaction tank through the water inlet pipe, some of it flows through the jet tube to the jet head. Simultaneously, ozone micro-nano bubbles produced by the micro-nano bubble generator are connected to the jet tube through a specific pipe, mixed with the sewage, and flow together to the jet head. Under the action of the jet head, the sewage mixed with ozone micro-nano bubbles is ejected at a high speed toward the elastic frame, causing the elastic frame to vibrate, thereby changing the flow direction of ozone and sewage between the catalyst layers. The ozone micro-nano bubbles are rapidly decomposed by the catalyst, producing active substances such as highly oxidizing free radicals. These active substances undergo an oxidation reaction with organic matter in the sewage, breaking it down into harmless or low-toxic small molecules.

[0049] 3. The elastic baffle can better adapt to the dynamic changes of the fluid inside the reaction tank. During the flow of fluid, the baffle may be subjected to different degrees of impact and pressure. The elastic connection can absorb these impact forces and prevent the baffle from being damaged due to uneven force. It can also change the path of the rotating flow field, increase the disturbance to the elastic frame, and make the elastic frame sway in a wave-like manner, thereby increasing the contact between ozone, catalyst and sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a system diagram of the ozone micro-nano catalytic oxidation decomposition device in the embodiment of the present application;

[0051] Figure 2 It is a cross-sectional view of the reaction tank in the embodiment of the present application.

[0052] Figure numerals: 100, reaction tank; 110, reaction chamber; 200, catalyst layer; 210, elastic frame; 211, accommodating chamber; 220, catalyst; 300, exhaust pipe; 400, ozone generator; 510, water inlet pipe; 520, drain pipe; 600, micro-nano bubble generator; 700, swirl mechanism; 710, swirl blade; 720, power assembly; 800, jet mechanism; 810, jet tube; 820, jet head; 830, impact head; 910, baffle; 920, exhaust gas discharge mechanism. DETAILED DESCRIPTION

[0053] The following combination Figures 1 to 2 This application is described in further detail.

[0054] This embodiment discloses an ozone micro-nano catalytic oxidation and decomposition device.

[0055] Reference Figure 1 and Figure 2 The ozone micro-nano catalytic oxidation decomposition device includes: a reaction tank 100 for providing a reaction space, a micro-nano bubble generator 600 connected to the reaction tank 100, a water inlet pipe 510 and an ozone generator 400 connected to the air inlet end of the micro-nano bubble generator 600, a catalyst layer 200 arranged in the reaction tank 100 for enhancing the ozone decomposition of sewage, a waste pipe 300 arranged on the reaction tank 100 for discharging wastewater, and a drain pipe 520 arranged on the reaction tank 100 for discharging treated sewage; when the sewage is being treated, the ozone is decomposed into a catalytic layer 200; During water treatment, the pretreated sewage is first introduced into the water inlet pipe 510, which transports the water to the micro-nano bubble generator 600. The ozone generated by the ozone generator 400 is also transported to the micro-nano bubble generator 600. Then, the bubbles and water vapor generated by the micro-nano bubble generator 600 enter the reaction tank 100. As the water level rises, the water contacts the catalyst layer 200, which drives the ozone to oxidize and decompose the water. After the sewage is decomposed and treated, it is discharged through the drain pipe 520.

[0056] Multiple reaction tanks 100 can be set up and switched for use through pipelines and valves. A reaction chamber 110 is opened in the reaction tank 100. The reaction chamber 110 is cylindrical and forms a reaction space. A cover is detachably sealed and connected to the top wall of the reaction tank 100 by bolts. The drain pipe 520 is fixedly connected to the cover. The cover is also provided with an exhaust gas discharge mechanism 920, which can be an exhaust gas destroyer; the waste pipe 300 is fixedly connected to the bottom wall of the reaction tank 100 and is connected to the reaction chamber 110. Valves are provided on both the waste pipe 300 and the drain pipe 520.

[0057] The air outlet end of the micro-nano bubble generator 600 is a micro-nano titanium aeration head, and the micro-nano titanium aeration head is disc-shaped, and the air outlet is opened toward the upper end of the reaction tank 100, and the micro-nano titanium aeration head is concentric with the reaction tank 100; the drainage end of the water inlet pipe 510 and the air outlet end of the ozone generator 400 are jointly connected to the air inlet end of the micro-nano bubble generator 600, and the drainage end of the water inlet pipe 510 is connected to a three-way valve, which is respectively connected to the air inlet end of the micro-nano bubble generator 600 and the bottom of the reaction tank 100.

[0058] A jet mechanism 800 is provided on the micro-nano titanium aeration head. The jet mechanism 800 includes a jet head 820 fixedly connected to the middle part of the micro-nano titanium aeration head and facing the upper end of the reaction tank 100. The jet head 820 is connected to a jet tube 810. The jet tube 810 passes through the reaction tank 100 and is connected to the water outlet end of the water inlet pipe 510 or the air outlet end of the micro-nano bubble generator 600 through a pipeline, and a valve is provided on the pipeline.

[0059] In order to change the jet pressure of the jet head 820 , a regulating pump for adjusting the pressure is provided on the jet tube 810 .

[0060] In order to reduce the deposition of impurities on the bottom wall of the reaction tank 100, a plurality of impact heads 830 are fixedly connected to the jet tube 810. The impact head 830 is located on the side of the jet tube 810 away from the jet head 820, and the plurality of impact heads 830 are arranged at equal intervals along the circumference of the micro-nano titanium aeration head, and are inclined toward the side wall of the reaction tank 100, and the ends are inclined toward the top wall of the reaction tank 100. After the impact heads 830 impact the side wall of the reaction tank 100, they are refracted, and can form a water curtain at the air outlet end of the micro-nano bubble generator 600 located on the bottom wall of the reaction tank 100; a three-way control valve is provided between the impact head 830 and the jet head 820, and the three-way control valve is a waterproof electromagnetic control valve.

[0061] The catalyst layer 200 includes a multi-layer elastic frame 210 detachably connected to the inner wall of the reaction tank 100. The elastic frame 210 can be made of a fabric formed by a combination of one or more materials such as polymer elastic materials, composite materials, and biomedical materials. A accommodating cavity 211 is formed by double-layer sewing. The accommodating cavity 211 is filled with a catalyst 220. The catalyst 220 can be a metal oxide catalyst, a loaded metal or metal oxide catalyst, a precious metal catalyst, or a composite material-supported ozone catalyst, wherein the metal oxide catalyst can be titanium dioxide, aluminum oxide, or manganese dioxide; the loaded metal or metal oxide catalyst can be a silicon-aluminum composite material catalyst, a ceramic ozone catalyst, an activated carbon ozone catalyst, or an aluminum-based ozone catalyst; the precious metal catalyst can be a precious metal such as platinum or palladium; this embodiment preferably uses a loaded metal or metal oxide catalyst, and is set to a spherical shape.

[0062] To facilitate the shaking of the elastic frame 210, the elastic frame 210 has elasticity. The areas of the multiple elastic frames 210 vary. The elastic frame 210 near the bottom of the reaction tank 100 has the largest area. The area of ​​the multiple elastic frames 210 gradually decreases in the direction away from the bottom wall of the reaction tank 100, so that the elastic deformation thereof gradually decreases in the direction away from the bottom wall of the reaction tank 100. The maximum elastic deformation extension of the bottom elastic frame 210 is one-third of the elastic frame 210 itself. In the dry state, the elastic frame 210 presents a slightly drooping arc shape. Since the elastic frame 210 is made of a fabric sewn from a polymer elastic material, it has a fine mesh and a certain self-weight, but the overall buoyancy is greater than gravity. Therefore, under the buoyancy of water, the elastic frame 210 of the bottom layer begins to deform elastically first. This deformation is manifested as the mesh of the elastic frame 210 gradually expanding, and the fabric becomes thinner due to the stretching of buoyancy, but the overall structure remains intact and will not break due to excessive stretching. As the water level rises, the buoyancy gradually transfers upward to the elastic frame 210 of the next layer. Since the area of ​​the multiple elastic frames 210 gradually decreases in the direction away from the bottom wall of the reaction tank 100, each layer of the elastic frame 210 will undergo different degrees of extension when subjected to the buoyancy. The degree of deformation decreases layer by layer. It has a fine mesh that blocks water. The catalyst material itself has buoyancy and is arranged at the upper end of the device. The material is relatively light. Under the buoyancy of the water itself, the elastic frame 210 is elastically deformed by the buoyancy. Due to the different areas and displacements, the layers fit together under the buoyancy. The setting of the jet head 820 can impact the elastic frame 210, causing it to deform, float and shake. The elastic frame 210 also flows in a wavy state as the water flow is disturbed.

[0063] The reaction tank 100 is provided with a swirl mechanism 700, which includes a swirl blade 710 rotatably connected to the middle part of the cover. The swirl blade 710 is located in the reaction chamber 110, and the swirl blade 710 is in the shape of an inclined fan blade, and rotates and tilts along its own length direction, with an inclination angle greater than five degrees and less than ten degrees; the ends of the multiple swirl blades 710 away from their own rotation axis are tilted toward the elastic frame 210; a power component 720 is provided on the cover, and the power component 720 is a servo motor. The output shaft of the servo motor is connected to the swirl blade 710 and drives the swirl blade 710 to rotate. The servo motor can drive the swirl blade 710 to rotate at a differential speed, thereby slightly disturbing the sewage in the reaction chamber 110.

[0064] In order to destroy ozone and sewage, the edge of the swirl blade 710 is formed with a blade, which cuts and breaks the sewage and ozone through rotation, accelerating the fusion between the two.

[0065] In order to reduce the excessive vortex amplitude in the reaction chamber 110, a baffle 910 is provided on the inner wall of the reaction tank 100. There are multiple baffles 910, and the multiple baffles 910 are divided into two layers. The two layers of baffles 910 are arranged in the vertical direction on the side of the elastic frame 210 close to the top wall of the reaction tank 100, and the two layers of baffles 910 are staggered, and the end away from the reaction tank 100 is inclined close to the elastic frame 210, and the angle with the horizontal plane is fifteen to twenty-five degrees. The connection between the baffle 910 and the reaction tank 100 is elastic. The baffle 910 includes a fixing part and a blocking part. The fixing part is an elastic steel sheet, and the blocking part is an iron sheet. The fixing part and the blocking part are connected by welding or screw locking.

[0066] The implementation principle of the embodiment of the present application is as follows: first, the sewage to be treated is subjected to necessary pretreatment to remove large particles of impurities, etc., and then the pretreated sewage is input through the water inlet pipe 510; the water inlet pipe 510 guides the water to the micro-nano bubble generator 600; at the same time, the ozone gas generated by the ozone generator 400 is also transported to the micro-nano bubble generator 600, and the ozone and sewage are mixed in the micro-nano bubble generator 600; in the micro-nano bubble generator 600, after the ozone gas and sewage are mixed, a large number of micro-nano bubbles are generated through the micro-nano titanium aeration head. These bubbles are extremely small in size, which can greatly increase the contact area between ozone and sewage, thereby improving the oxidation and decomposition efficiency. The design of the micro-nano titanium aeration head allows the bubbles to be released toward the upper end of the reaction tank 100, which helps to evenly distribute the bubbles in the reaction tank 100.

[0067] As the water level rises, the wastewater containing micro-nano bubbles comes into contact with the catalyst layer 200; the catalyst layer 200 is composed of a multi-layer detachable elastic frame 210, which is filled with a high-efficiency catalyst 220 (such as a supported metal or metal oxide catalyst); the presence of the catalyst 220 greatly enhances the ozone's ability to oxidize and decompose the wastewater. Under the action of the catalyst 220, the wastewater is oxidized and decomposed by the ozone, removing organic matter, pollutants, etc.

[0068] In order to further improve the treatment effect, a jet mechanism 800 is also provided on the micro-nano titanium aeration head; the jet head 820 is connected to the water inlet pipe 510 or the air outlet end of the micro-nano bubble generator 600 through the jet tube 810, and the regulating pump on the jet tube 810 can adjust the jet pressure; at the same time, a plurality of impact heads 830 are also fixed on the jet tube 810, which are inclined toward the side wall of the reaction tank 100, and can form a water curtain at the air outlet end of the micro-nano bubble generator 600 located on the bottom wall of the reaction tank 100, which helps to reduce the deposition of impurities on the bottom wall.

[0069] To promote thorough mixing of wastewater and ozone, the reaction tank 100 is equipped with a swirl mechanism 700. A servo motor drives the swirl blades 710, gently disturbing the wastewater within the reaction chamber 110. The blades 710 have cutting edges that cut and fragment the wastewater and ozone, accelerating fusion. Furthermore, baffles 910 installed on the inner wall of the reaction tank 100 help limit the swirl amplitude and prevent excessive disturbance.

[0070] The treated sewage is discharged through the drain pipe 520, while the waste gas is treated through the tail gas discharge mechanism 920; the waste pipe 300 is used to discharge solid waste or other waste liquid generated during the reaction process. Valves are provided on the waste pipe 300 and the drain pipe 520 to facilitate flow control.

[0071] As the water level rises, the multi-layer elastic frame 210 deforms and fits together, which not only ensures sufficient contact between the catalyst 220 and the sewage, but also adapts to changes in different water levels; the elasticity and buoyancy design of the elastic frame 210 enables it to adapt to water level changes while maintaining a certain stability.

[0072] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An ozone micro-nano catalytic oxidation decomposition device, characterized by: include: A reaction tank (100) having a reaction chamber (110) formed therein and provided with a drain pipe (520) for discharging treated sewage; The catalyst layer (200) comprises a multi-layer elastic frame (210), wherein the multi-layer elastic frame (210) is sequentially arranged along the vertical direction of the reaction tank (100), gaps exist between the multi-layer elastic frame (210), the area of ​​the multi-layer elastic frame (210) gradually decreases in a direction away from the bottom wall of the reaction tank (100), and the elastic deformation of the multi-layer elastic frame (210) gradually decreases in a direction away from the bottom wall of the reaction tank (100), and the multi-layer elastic frame (210) can deform and fit as the water level rises, and an accommodating cavity (211) is formed on the elastic frame (210), and the accommodating cavity (211) is filled with a catalyst (220); A waste discharge pipe (300), provided on the reaction tank (100), communicated with the reaction chamber (110), and used for waste discharge; an ozone generator (400) for generating ozone; The water inlet pipe (510) is connected to the sewage source after pre-treatment and impurity removal; A micro-nano bubble generator (600) is arranged outside the reaction tank (100), with an air inlet end connected to the water inlet pipe (510) and the exhaust end of the ozone generator (400), and an air outlet end connected to the bottom of the reaction tank (100); A fluidic mechanism (800) is provided at the bottom of the reaction tank (100), and the fluidic mechanism (800) comprises: A jet tube (810) is provided at the bottom of the reaction tank (100) and is connected to the air outlet of the micro-nano bubble generator (600) or the water inlet pipe (510); The jet head (820) is provided on the jet tube (810) and faces the elastic frame (210) to impact the elastic frame (210), causing the elastic frame (210) to deform, float, and shake, and the elastic frame (210) to flow in a wave shape as the water flow is disturbed.

2. The ozone micro-nano catalytic oxidation decomposition device according to claim 1, characterized in that: The reaction tank (100) is provided with a cyclone mechanism (700), and the cyclone mechanism (700) comprises: A swirl blade (710) is rotatably disposed on the upper top wall of the reaction tank (100); A power assembly (720) is provided on the reaction tank (100), connected to the swirl blade (710), and is used to drive the swirl blade (710) to rotate.

3. The ozone micro-nano catalytic oxidation decomposition device according to claim 2, characterized in that: The end of the swirl blade (710) away from its own rotation axis is inclined toward the end close to the elastic frame (210).

4. The ozone micro-nano catalytic oxidation decomposition device according to claim 2, characterized in that: The power assembly (720) can drive the swirl blade (710) to rotate at a variable speed.

5. The ozone micro-nano catalytic oxidation decomposition device according to claim 1, characterized in that: The jet tube (810) is provided with a regulating pump for regulating pressure.

6. The ozone micro-nano catalytic oxidation decomposition device according to claim 1, characterized in that: The jet tube (810) is provided with a plurality of impact heads (830), and the plurality of impact heads (830) are inclined toward the side wall of the reaction tank (100) and form an angle with the bottom wall of the reaction tank (100). The impact heads (830) impact the side wall of the reaction tank (100), and can form a water curtain at the air outlet end of the micro-nano bubble generator (600) located on the bottom wall of the reaction tank (100).

7. The ozone micro-nano catalytic oxidation decomposition device according to claim 2, characterized in that: A baffle (910) is provided on the inner side wall of the reaction tank (100), and the baffle (910) is used to lower the edge of the elastic frame (210) to form a swirl.

8. The ozone micro-nano catalytic oxidation decomposition device according to claim 7, characterized in that: The baffle (910) is elastic.

Images