A hydrogen peroxide wastewater treatment device combining explosion gas and sludge

Abstract

The present invention relates to the field of wastewater treatment, and in particular to a hydrogen peroxide wastewater treatment device combining aeration and sludge, comprising a tank body, wherein a stirring mechanism is arranged in the tank body, wherein the stirring mechanism comprises a rotating shaft, and a lower stirring rod and an upper stirring rod arranged parallel to each other along the axial direction thereof, and a counter-aeration component is arranged between the lower stirring rod and the upper stirring rod, wherein the counter-aeration component comprises upper aeration nozzles distributed at equal intervals along the axial direction of the lower stirring rod, and lower aeration nozzles distributed at equal intervals along the axial direction of the upper stirring rod, and an anti-blocking structure is arranged between the upper aeration nozzle and the lower aeration nozzle. The present invention ensures uniform mixing of wastewater and sludge through synchronous movement of the upper stirring rod and the lower stirring rod, and simultaneously utilizes the lower aeration nozzle and the upper aeration nozzle to inject oxygen-rich gas into the water body, thereby facilitating contact between suspended solids and bubbles and reducing accumulation of solid particles in the aeration gap.

Description

Technical Field

[0001] The invention relates to the field of wastewater treatment, and in particular to a hydrogen peroxide wastewater treatment device combining explosion gas and sludge. Background Art

[0002] The activated sludge process is an aerobic biological treatment method for sewage. It is the main method of biological treatment based on activated sludge. Hydrogen peroxide wastewater refers to the waste liquid produced after the use of hydrogen peroxide in industrial production or laboratory operations. The activated sludge process mixes the wastewater with activated sludge and aerates it to decompose the organic pollutants in the wastewater. The biological solids are then separated from the treated wastewater, and part of it can be returned to the aeration tank as needed.

[0003] The key step is to use an aeration tank to implement mixed aeration. In this step, air needs to be continuously introduced into the aeration tank. Under the condition of sufficient oxygen, the organisms absorb these organic matter and oxidize and decompose them to form carbon dioxide and water, part of which is supplied to their own proliferation. The air feed amount and feed uniformity directly affect the efficiency of microorganisms in oxidizing and decomposing organic matter. Traditional aeration oxygen supply uses an aerator to pump air into the mixed liquid. The distribution of bubbles formed by air in the mixed liquid is affected by the laying distribution of the air supply pipeline, and the bubble uniformity needs to be improved.

[0004] The currently disclosed Chinese patent CN117228824A discloses an activated sludge method for efficiently treating wastewater, and a treatment method thereof, comprising a tank body, an inner ring tube, the inner ring tube being concentrically arranged inside the tank body, the bottom of the inner ring tube not being in contact with the tank body, a plurality of overflow ports being annularly distributed on the upper part of the inner ring tube, a stirring assembly, the stirring assembly being arranged inside the inner ring tube, the stirring assembly being connected to a motor, the motor driving the stirring assembly to rotate, so that the liquid between the tank body and the inner ring tube is conducted upward from the bottom of the inner ring tube, and the liquid circulates through the overflow port into the space between the tank body and the inner ring tube, an aeration assembly, the aeration assembly being arranged at the bottom of the tank body, a plurality of air nozzle assemblies being arranged on the surface of the aeration assembly, and an aeration assembly. The motor is connected, and the motor drives the aeration component to rotate. The aeration component includes a shaft tube, and the top of the shaft tube extends above the pool body. The motor is connected to the shaft tube through a belt drive. The bottom of the shaft tube is fixedly connected with a core shell, and a plurality of air guide components are evenly fixed and connected around the core shell. The air nozzle assembly is arranged on the upper surface of the air guide component, and a movable bevel tooth is arranged on the end of the air guide component. The movable bevel tooth is slidably inserted into the air guide component through a guide rod, and the movable bevel tooth is elastically connected to the air guide component through a spring. The movable bevel tooth and the air guide component are sealed and connected through a bellows. A plurality of fixed bevel teeth are evenly fixed on the bottom of the inner wall of the pool body. The fixed bevel teeth and the movable bevel teeth are tilted in opposite directions, and the fixed bevel teeth are counter-positioned to squeeze the movable bevel teeth.

[0005] According to the above patent, during the rotation of the air guide assembly driven by the motor-driven shaft tube of the above patent, the movable bevel teeth and the fixed bevel teeth are continuously squeezed and contacted to alternately inhale and exhaust air in the first air cavity, and small bubbles are sprayed into the mixed liquid through the air nozzle assembly. Since the plate body rotates at the bottom of the pool body, the small bubbles sprayed by the air nozzle assembly are evenly mixed into the mixed liquid, thereby accelerating the efficiency of microbial oxidation and decomposition of organic matter. Although the above method achieves uniform aeration through rotation, it requires alternating inhalation and exhaust air each time, resulting in discontinuous aeration, which may cause fluctuations in the dissolved oxygen concentration in the water, affecting the activity and treatment efficiency of the microorganisms. Unstable oxygen supply conditions are not conducive to their stable growth, thereby affecting the degradation efficiency of organic matter. Therefore, there is a need for a method that allows the bubbles generated by aeration to be evenly mixed into the wastewater on the basis of continuous aeration to improve the degradation efficiency of organic matter, thereby enhancing the overall performance of wastewater treatment. Summary of the invention

[0006] In view of the problems existing in the prior art, a hydrogen peroxide wastewater treatment device combining aeration and sludge is provided. The present invention ensures uniform mixing of wastewater and sludge through the synchronous movement of an upper stirring rod and a lower stirring rod. At the same time, oxygen-rich gas is injected into the water body by using a lower aeration nozzle and an upper aeration nozzle, which helps the contact between suspended solids and bubbles and reduces the accumulation of solid particles in the aeration gap.

[0007] In order to solve the problems of the prior art, the present invention provides a hydrogen peroxide wastewater treatment device combining explosion and sludge, comprising a tank body, a feed inlet and a discharge port are provided on the tank body, a stirring mechanism is provided in the tank body, the stirring mechanism comprises a rotating shaft, and a lower stirring rod and an upper stirring rod arranged parallel to each other along the axial direction thereof, a counter-aeration component is provided between the lower stirring rod and the upper stirring rod, the counter-aeration component comprises upper aeration nozzles distributed at equal intervals along the axial direction of the lower stirring rod, and lower aeration nozzles distributed at equal intervals along the axial direction of the upper stirring rod, a The upper aeration nozzle is arranged relative to one of the lower aeration nozzles, an aeration gap is left between the upper aeration nozzle and the corresponding lower aeration nozzle, the lower stirring rod and the upper stirring rod respectively have a lower airway and an upper airway connected to the upper aeration nozzle and the lower aeration nozzle, an anti-blocking structure for preventing solid particles from accumulating around is arranged between the upper aeration nozzle and the lower aeration nozzle, when the upper aeration nozzle and the lower aeration nozzle spray gas in the water at the same time, the anti-blocking structure is activated under the disturbance of the airflow between the two, so that the accumulated solid particles are dispersed, and the gas is evenly distributed in the water.

[0008] Preferably, the upper aeration nozzle is fixedly connected to the lower stirring rod, and the lower aeration nozzle is rotatably connected to the upper stirring rod. The anti-blocking structure includes a sleeve fixedly arranged on the upper aeration nozzle and covering the lower aeration nozzle therein, and blades evenly distributed thereon along the circumferential direction of the lower aeration nozzle. When the upper aeration nozzle and the lower aeration nozzle spray air at the same time, the power of the mutual impact of the airflow acts on the blades, causing the lower aeration nozzle to rotate relative to the upper aeration nozzle.

[0009] Preferably, the sleeve is provided with a through hole through which wastewater can flow, and the portion of the sleeve fixed to the upper aeration nozzle has an opening for preventing solid particles from accumulating therein.

[0010] Preferably, the lower stirring rod is fixedly connected to the rotating shaft, and the upper stirring rod can move along the axial direction of the rotating shaft. The rotating shaft is provided with a vibration component for driving the upper stirring rod to reciprocate along the axial direction of the rotating shaft. When the vibration component drives the upper stirring rod to move relative to the lower stirring rod, the lower aeration nozzle moves up and down in the sleeve relative to the upper aeration nozzle, so that the bubbles are more dispersed in the water.

[0011] Preferably, a spoiler is fixedly provided on both sides of the upper stirring rod along its axial direction. When the vibration assembly drives the upper stirring rod to move relative to the lower stirring rod, the spoiler has a further disruptive effect in the water based on the mixing of wastewater and sludge by the upper stirring rod and the lower stirring rod.

[0012] Preferably, a scraper bar is fixedly provided on one side of the lower stirring rod along the rotation direction, and the scraper bar contacts the inner bottom of the pool body. When the lower stirring rod rotates along with the rotating shaft, the scraper bar stirs and scrapes up the sludge deposited on the bottom of the pool, so that the sludge and water are more fully mixed.

[0013] Preferably, the vibration assembly includes a sliding sleeve arranged on a rotating shaft for fixing an upper stirring rod, and a vibrator for driving the sliding sleeve to vibrate reciprocatingly, the sliding sleeve having a cavity connected to the upper airway of the upper stirring rod and providing an air source, and the rotating shaft having a channel connected to the lower airway of the lower stirring rod and providing an air source.

[0014] Preferably, the vibration assembly also includes a connecting rod connected between the upper stirring rod and the lower stirring rod for stabilizing the upper stirring rod, the two ends of the connecting rod extend toward the upper stirring rod and the lower stirring rod respectively, the lower stirring rod has a hinged portion for rotatably connecting the corresponding end of the connecting rod, the upper stirring rod is provided with a sliding portion for rotatably connecting the corresponding end of the connecting rod sliding along its axial direction, and the upper stirring rod has a track for sliding the sliding portion.

[0015] Preferably, the fixed sleeve on the rotating shaft is provided with a buffer portion that can support the sliding sleeve. When the lower end of the sliding sleeve contacts the buffer portion, the position of the sliding sleeve on the rotating shaft is at the lowest point, and the aeration gap is left between the upper aeration nozzle and the lower aeration nozzle.

[0016] Preferably, a plurality of lower stirring rods and upper stirring rods are evenly distributed on the rotating shaft around its circumference, all of the lower stirring rods are fixedly connected to the rotating shaft, and all of the upper stirring rods are fixedly connected to the sliding sleeve.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention operates the upper aeration nozzle and the lower aeration nozzle simultaneously, and the kinetic energy generated by the airflow collision drives the blades to rotate. This dynamic process promotes the deep turbulence of the water body and the rapid and uniform dissolution of oxygen, optimizes the gas-liquid mass transfer, accelerates the deep fusion of sludge and wastewater, and effectively improves the biodegradation rate of organic pollutants. At the same time, the self-cleaning mechanism formed by the rotating blades avoids the blockage problem caused by the aggregation of solid particles, ensures long-lasting and efficient aeration performance, realizes the high efficiency and sustainability of the purification process, and improves the wastewater treatment efficiency.

[0019] 2. The present invention enhances the dispersion effect of the wastewater and sludge mixture on the basis of the rotational stirring of the upper and lower stirring rods by the vertical movement of the upper stirring rod induced by the vibration component, realizes the dynamic optimization of bubble generation and distribution, and not only causes the lower aeration nozzle to vibrate in the sleeve along with the movement of the upper stirring rod, further dispersing solid particles and bubbles, but also induces the effect of bubbles surging in the water body. Compared with the traditional single-point aeration, the diffusion range of bubbles in the water is increased. Each bubble constantly collides and bursts with other bubbles in the frequent position changes, and then is refined into more tiny bubbles, which greatly increases the contact area of ​​the gas-liquid interface, improves the dissolution rate and efficiency of oxygen in water, provides more abundant oxidation conditions for the microbial community in the wastewater, accelerates the biodegradation process of organic matter, and thus greatly enhances the efficiency of wastewater treatment.

[0020] 3. The present invention forms a highly efficient sludge resuspension and wastewater deep mixing system through the synergistic effect of the scraper bar of the lower stirring rod and the spoiler of the upper stirring rod in the stirring mechanism. The scraper bar is close to the bottom of the tank body along the rotation direction, ensuring that the accumulated sludge can be effectively interrupted and scraped off during the rotation process, and the spoiler further strengthens the mixing process of sludge and wastewater through its reciprocating motion in the vertical direction, which not only enhances the dispersion of bubbles and ensures the uniformity of the reaction during the wastewater treatment process, but also increases the dissolved oxygen level, accelerates biodegradation, enhances the flocculation effect and improves the sedimentation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a three-dimensional structural schematic diagram of a hydrogen peroxide wastewater treatment device combining explosion and sludge.

[0022] Figure 2 The present invention is a partial plan cross-sectional view of a hydrogen peroxide wastewater treatment device combining explosion and sludge.

[0023] Figure 3 The present invention is a partial three-dimensional structural cross-sectional view of a hydrogen peroxide wastewater treatment device combining explosion and sludge.

[0024] Figure 4 yes Figure 2 A cross-sectional view of the three-dimensional structure at AA.

[0025] Figure 5 yes Figure 4 An enlarged schematic diagram of point B.

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the hydrogen peroxide wastewater treatment device that combines explosion and sludge to remove the tank body Figure 1 .

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the hydrogen peroxide wastewater treatment device that combines explosion and sludge to remove the tank body Figure 2 .

[0028] Figure 8 The present invention is a partial plan view of a hydrogen peroxide wastewater treatment device combining explosion and sludge without removing the tank body.

[0029] Fig. 9 yes Figure 8 Cross-sectional view of the three-dimensional structure at CC.

[0030] Fig.10 yes Fig. 9 Enlarged schematic diagram of point D.

[0031] The numbers in the figure are: 1, tank body; 11, feed inlet; 12, discharge outlet; 2, stirring mechanism; 21, rotating shaft; 211, channel; 22, lower stirring rod; 221, lower air duct; 222, scraper; 23, upper stirring rod; 231, upper air duct; 232, spoiler; 3, upper aeration nozzle; 4, lower aeration nozzle; 5, anti-blocking structure; 51, sleeve; 511, through hole; 512, opening; 52, blade; 6, vibration component; 61, sleeve; 611, cavity; 612, buffer part; 62, connecting rod; 621, hinged part; 622, sliding part; 6221, track. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figure 1-Figure 5 As shown, a hydrogen peroxide wastewater treatment device combining explosion and sludge comprises a tank body 1, on which a feed inlet 11 and a discharge outlet 12 are provided, in which a stirring mechanism 2 is provided, wherein the stirring mechanism 2 comprises a rotating shaft 21, and a lower stirring rod 22 and an upper stirring rod 23 arranged parallel to each other along the axial direction thereof, and a counter-aeration assembly is provided between the lower stirring rod 22 and the upper stirring rod 23, wherein the counter-aeration assembly comprises upper aeration nozzles 3 distributed at equal intervals along the axial direction of the lower stirring rod 22, and lower aeration nozzles 4 distributed at equal intervals along the axial direction of the upper stirring rod 23, wherein an upper aeration nozzle 3 is provided at equal intervals along the axial direction of the lower stirring rod 22, and a lower aeration nozzle 4 is provided ... and a lower aeration nozzle 4 is provided at equal intervals along the axial direction of the upper stirring rod 23, and a lower aeration nozzle 4 is provided at equal intervals along the axial direction of The nozzle 3 is arranged relative to one of the lower aeration nozzles 4, an aeration gap is left between the upper aeration nozzle 3 and the corresponding lower aeration nozzle 4, the lower stirring rod 22 and the upper stirring rod 23 respectively have a lower airway 221 and an upper airway 231 connected to the upper aeration nozzle 3 and the lower aeration nozzle 4, and an anti-blocking structure 5 is provided between the upper aeration nozzle 3 and the lower aeration nozzle 4 to prevent solid particles from accumulating around. When the upper aeration nozzle 3 and the lower aeration nozzle 4 simultaneously spray gas into the water, the anti-blocking structure 5 is activated under the disturbance of the airflow between the two, so that the accumulated solid particles are dispersed and the gas is evenly distributed in the water.

[0034] When treating hydrogen peroxide wastewater, first, the wastewater is introduced from the feed port 11 of the tank body 1. As the stirring mechanism 2 is started, the stirring mechanism 2 continues to work, and the upper stirring rod 23 and the lower stirring rod 22 effectively stir the sludge and the wastewater together, ensuring sufficient mixing in the tank body 1. In the process of the upper stirring rod 23 and the lower stirring rod 22 stirring the water body, the aeration component also starts aeration synchronously, and the gas is respectively supplied to the lower aeration nozzle 4 and the upper aeration nozzle 3 through the lower airway 221 and the upper airway 231. When the gas is released from the lower aeration nozzle 4 and the upper aeration nozzle 3 into the water, a strong gas-liquid disturbance will be generated, forming tiny bubbles in the water, thereby increasing the dissolved oxygen content in the water. At the same time, the anti-blocking The structure 5 is located between the lower aeration nozzle 4 and the upper aeration nozzle 3. The disturbance of the airflow prevents the accumulation of solid particles in the aeration area, ensuring the smooth flow of air. When the lower aeration nozzle 4 and the upper aeration nozzle 3 operate at the same time, the force generated by the disturbance of the counter-flow airflow is sufficient to break up the accumulated solid particles, making it difficult for them to form blockages near the counter-flow aeration components, thereby maintaining the stability of the aeration efficiency. With sufficient oxygen supply, the microorganisms quickly consume the organic matter in the wastewater, and the microorganisms in the sludge help decompose the organic pollutants in the wastewater. After sufficient aeration, biodegradation and stirring, the pollutants in the wastewater are effectively removed. At this time, the clean water in the wastewater can be discharged through the discharge port 12 of the tank body 1.

[0035] See also Figure 5-Figure 10 As shown, the upper aeration nozzle 3 is fixedly connected to the lower stirring rod 22, and the lower aeration nozzle 4 is rotatably connected to the upper stirring rod 23. The anti-blocking structure 5 has a sleeve 51 fixedly arranged on the upper aeration nozzle 3 to cover the lower aeration nozzle 4, and blades 52 uniformly distributed thereon along the circumferential direction of the lower aeration nozzle 4. When the upper aeration nozzle 3 and the lower aeration nozzle 4 spray at the same time, the power of the mutual impact of the airflow acts on the blades 52, so that the lower aeration nozzle 4 rotates relative to the upper aeration nozzle 3.

[0036] When the upper aeration nozzle 3 and the lower aeration nozzle 4 work together to release gas to form counter-flow, the thrust generated by the collision of the airflows acts on the blades 52, prompting the lower aeration nozzle 4 to rotate around the central axis of the upper aeration nozzle 3. This dynamic process significantly enhances the turbulence of the water body, allowing oxygen to dissolve more quickly and evenly in the wastewater, not only enhancing the disturbance of the gas-liquid interface, but also promoting the dispersion of bubbles, greatly improving the dispersion of bubbles and the dissolution efficiency of oxygen, promoting the mixing degree of sludge and wastewater, and helping to accelerate the biodegradation rate of organic pollutants. At the same time, the movement of the rotating blades 52 can also disperse a small amount of solid particles entering the interior of the sleeve 51, effectively preventing the accumulation of solid particles around the upper aeration nozzle 3 and the lower aeration nozzle 4, and avoiding affecting the aeration effect.

[0037] See also Fig.10 As shown, the sleeve 51 is provided with a through hole 511 for wastewater to flow through, and the portion where the sleeve 51 is fixed to the upper aeration nozzle 3 has an opening 512 for preventing solid particles from accumulating therein.

[0038] The multiple through holes 511 provided on the sleeve 51 allow the wastewater to flow freely while being aerated, ensuring that the wastewater can fully contact the oxygen generated by aeration, thereby promoting biological activity in the entire volume and accelerating the oxidation decomposition process, which not only optimizes the gas exchange efficiency, but also ensures the uniformity of the water flow, providing a wider contact surface and a more active reaction environment for microorganisms. In addition, the fixed connection portion between the sleeve 51 and the upper aeration nozzle 3 is provided with an anti-blocking opening 512, which avoids the accumulation of solid particles inside the sleeve 51, thereby preventing the risk of blockage and maintaining unimpeded aeration, ensuring the continuity and efficiency of the airflow power.

[0039] See also Figure 3 and Figure 5-Figure 9As shown, the lower stirring rod 22 is fixedly connected to the rotating shaft 21, and the upper stirring rod 23 can move along the axial direction of the rotating shaft 21. The rotating shaft 21 is provided with a vibration component 6 for driving the upper stirring rod 23 to reciprocate along the axial direction of the rotating shaft 21. When the vibration component 6 drives the upper stirring rod 23 to move relative to the lower stirring rod 22, the lower aeration nozzle 4 moves up and down in the sleeve 51 relative to the upper aeration nozzle 3, so that the bubbles are more dispersed in the water.

[0040] When the vibration component 6 starts working, it causes the upper stirring rod 23 to produce regular lifting and lowering movements in the vertical direction through precisely controlled frequency and amplitude, forming a dynamic relative displacement with the lower stirring rod 22 fixed below. This ingenious movement mode indirectly causes the lower aeration nozzle 4 located in the sleeve 51 to move up and down. With each rise and fall of the upper stirring rod 23, the lower aeration nozzle 4 produces subtle position changes in the sleeve 51. This dynamic effect greatly enriches the distribution state of bubbles in the water body. Bubbles are no longer released in a single direction or plane, but are induced to diffuse in multiple dimensions and all directions, forming an aeration effect similar to a "spring-like" aeration effect. Because the location where the bubbles are generated is constantly changing, they collide and split with each other in the water, becoming smaller and more dispersed, greatly increasing the gas-liquid contact interface and improving the oxygen transfer efficiency and utilization rate.

[0041] See also Figure 3 and Figure 5-Figure 9 As shown, a spoiler 232 is fixedly provided on both sides of the upper stirring rod 23 along its axial direction. When the vibration component 6 drives the upper stirring rod 23 to move relative to the lower stirring rod 22, based on the mixing of wastewater and sludge by the upper stirring rod 23 and the lower stirring rod 22, the spoiler 232 has a further disruptive effect in the water.

[0042] When the upper stirring rod 23 moves back and forth in the vertical direction with the operation of the vibration component 6, it not only works together with the lower stirring rod 22 to mix the wastewater and sludge, but the spoiler 232 also participates in this dynamic process. With each rise and fall of the upper stirring rod 23, a disturbing force is applied to the water body, thereby enhancing the turbulence of the wastewater and sludge during the stirring process, making the mixing of the wastewater and sludge more uniform and thorough, promoting the breakage and redistribution of tiny bubbles in the water body, further improving the mass transfer efficiency between gas and liquid, accelerating the dissolution of oxygen, and helping to accelerate the microbial degradation process and improve the treatment efficiency.

[0043] See also Figure 5 and Figure 6As shown, a scraper bar 222 is fixedly provided on one side along the rotation direction of the lower stirring rod 22, and the scraper bar 222 contacts the inner bottom of the pool body 1. When the lower stirring rod 22 rotates along with the rotating shaft 21, the scraper bar 222 stirs and scrapes up the sludge deposited on the bottom of the pool, so that the sludge and the water body are more fully mixed.

[0044] When the stirring mechanism 2 is started, the rotating shaft 21 drives the lower stirring rod 22 and the scraper bar 222 thereon to rotate synchronously. The scraper bar 222 effectively stirs the sludge accumulated at the bottom of the tank body 1 as the lower stirring rod 22 rotates. The continuous movement of the scraper bar 222 not only interrupts the sedimentation trend of the sludge, but also scrapes it from the bottom of the tank body 1 and reintegrates it into the wastewater. The scraped sludge is fully contacted and mixed with other components in the water body. Combined with the movement of the spoiler 232 on the upper stirring rod 23, the full mixing of the sludge and the wastewater is promoted, thereby improving the wastewater treatment effect.

[0045] See also Figure 3 and Figure 6-Figure 9 As shown, the vibration assembly 6 includes a sleeve 61 slidably mounted on the rotating shaft 21 for fixing the upper stirring rod 23, and a vibrator for driving the sleeve 61 to vibrate reciprocatingly, the sleeve 61 has a cavity 611 connected to the upper airway 231 of the upper stirring rod 23 and providing an air source, and the rotating shaft 21 has a channel 211 connected to the lower airway 221 of the lower stirring rod 22 and providing an air source.

[0046] The vibrator is not shown in the figure. When the vibrator drives the sleeve 61 to vibrate, the upper stirring rod 23 produces dynamic changes in the vertical direction, thereby enhancing the mixing effect of the wastewater and the bubbles. The force of vibration further promotes the fine dispersion of the bubbles in the water body, increases the gas-liquid contact surface area, and drives the lower aeration nozzle 4 to vibrate in the sleeve 51, further disturbing the solid particles therein to prevent blockage, while further promoting the uniform dispersion of the solid particles and the bubbles in the water body, thereby improving the mixing effect.

[0047] See also Figure 3 and Figure 6-Figure 9 As shown, the vibration assembly 6 also includes a connecting rod 62 connected between the upper stirring rod 23 and the lower stirring rod 22, which stabilizes the upper stirring rod 23. The two ends of the connecting rod 62 extend toward the upper stirring rod 23 and the lower stirring rod 22 respectively. The lower stirring rod 22 has a hinged portion 621 for rotatably connecting the corresponding end of the connecting rod 62. The upper stirring rod 23 is provided with a sliding portion 622 for rotatably connecting the corresponding end of the connecting rod 62 along its axial direction. The upper stirring rod 23 has a track 6221 for sliding the sliding portion 622.

[0048] The two ends of the connecting rod 62 are respectively connected to the upper stirring rod 23 and the lower stirring rod 22, and the connecting rod 62 can move along with the vibration of the upper stirring rod 23 to provide stability. The stabilizing effect of the connecting rod 62 reduces the additional stress that the upper stirring rod 23 may bear during the vibration process, thereby extending the overall service life of the stirring mechanism 2, ensuring more uniform mixing of materials in the pool body 1, accelerating the biodegradation process, and improving the quality of purified water.

[0049] See also Figure 6-Figure 9 As shown, a buffer portion 612 is provided on the fixed sleeve of the rotating shaft 21 to support the sliding sleeve 61. When the lower end of the sliding sleeve 61 contacts the buffer portion 612, the position of the sliding sleeve 61 on the rotating shaft 21 is at the lowest point, and the aeration gap is left between the upper aeration nozzle 3 and the lower aeration nozzle 4.

[0050] When the sleeve 61 drops to the lowest limit due to vibration, the buffer portion 612 provides a support point that can be used for buffering, effectively absorbing and alleviating the impact force of the sleeve 61 falling, and protecting the sleeve 61 from damage. At the same time, as the sleeve 61 drops to the lowest point, the preset aeration gap between the upper aeration nozzle 3 and the lower aeration nozzle 4 is maintained within the minimum specified range, which not only ensures that the airflow can pass smoothly and evenly between the upper aeration nozzle 3 and the lower aeration nozzle 4, but also optimizes the size distribution of the bubbles, making the aeration process more efficient. The bubbles are formed and diffused in the aeration gap, fully contacting the water body and the solid particles therein, promoting the dissolution of oxygen and the oxidative decomposition of harmful substances, thereby accelerating the wastewater purification process.

[0051] See also Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a plurality of lower stirring rods 22 and upper stirring rods 23 are evenly distributed on the rotating shaft 21 around its circumference, all the lower stirring rods 22 are fixedly connected to the rotating shaft 21 , and all the upper stirring rods 23 are fixedly connected to the sliding sleeve 61 .

[0052] The coordinated use of multiple sets of corresponding upper stirring rods 23 and lower stirring rods 22 can achieve comprehensive stirring at different depths in the water body, which not only improves the uniform distribution of solid suspended matter at the bottom, but also strengthens the gas-liquid mixing in the upper layer of the water body, thereby improving the mixing efficiency and uniformity.

[0053] The present invention ensures uniform mixing of wastewater and sludge by synchronously moving the upper stirring rod 23 and the lower stirring rod 22 during the driving process of the rotating shaft 21. While stirring, the lower aeration nozzle 4 and the upper aeration nozzle 3 are used to inject oxygen-rich gas into the water body, which not only improves the dissolved oxygen level of the water body, but also generates dense micro-bubbles, thereby enhancing the oxygen transmission efficiency. During aeration, the anti-blocking structure 5 effectively disperses the solid particles gathered around the lower aeration nozzle 4 and the upper aeration nozzle 3, thereby maintaining smooth airflow. The counter-flow aeration method of the air nozzle 3 enables the formation of staggered bubble flows in the water body, so that the bubbles are more evenly distributed in the water body during the rising process in the water, increasing the contact area between the water body and oxygen, thereby accelerating the degradation process of organic matter. At the same time, the strong gas-liquid disturbance is conducive to the contact between suspended solids and bubbles, promoting flotation, and reducing the accumulation of solid particles in the aeration gap, so that the solid particles are dispersed. Compared with aeration in a single direction, counter-flow aeration can more effectively play a disturbing effect and improve the dispersion effect of sludge and wastewater mixing.

[0054] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A hydrogen peroxide wastewater treatment device combining explosion and sludge, comprising a tank body (1), the tank body (1) being provided with a feed inlet (11) and a discharge outlet (12), the tank body (1) being provided with a stirring mechanism (2), the stirring mechanism (2) comprising a rotating shaft (21), and a lower stirring rod (22) and an upper stirring rod (23) being arranged parallel to each other along the axis direction thereof; It is characterized in that A counter-aeration assembly is provided between the lower stirring rod (22) and the upper stirring rod (23), the counter-aeration assembly comprising upper aeration nozzles (3) distributed at equal intervals along the axial direction of the lower stirring rod (22), and lower aeration nozzles (4) distributed at equal intervals along the axial direction of the upper stirring rod (23), one upper aeration nozzle (3) and one lower aeration nozzle (4) being arranged relative to each other, an aeration gap being left between the upper aeration nozzle (3) and the corresponding lower aeration nozzle (4), and the lower stirring rod (22) and the upper stirring rod (23) respectively having a lower airway (221) and an upper airway (231) communicating with the upper aeration nozzle (3) and the lower aeration nozzle (4); An anti-blocking structure (5) is provided between the upper aeration nozzle (3) and the lower aeration nozzle (4) to prevent solid particles from accumulating around them. When the upper aeration nozzle (3) and the lower aeration nozzle (4) simultaneously spray gas into the water, the anti-blocking structure (5) is activated under the disturbance of the air flow between the two, so that the accumulated solid particles are dispersed and the gas is evenly distributed in the water.

2. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 1 is characterized in that: The upper aeration nozzle (3) is fixedly connected to the lower stirring rod (22), and the lower aeration nozzle (4) is rotatably connected to the upper stirring rod (23). The anti-blocking structure (5) comprises a sleeve (51) fixedly arranged on the upper aeration nozzle (3) and covering the lower aeration nozzle (4) therein, and blades (52) evenly distributed on the lower aeration nozzle (4) along the circumferential direction of the lower aeration nozzle (4). When the upper aeration nozzle (3) and the lower aeration nozzle (4) spray air at the same time, the power of the mutual impact of the airflow acts on the blades (52), causing the lower aeration nozzle (4) to rotate relative to the upper aeration nozzle (3).

3. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 2 is characterized in that: The sleeve (51) is provided with a through hole (511) through which wastewater can flow, and the portion of the sleeve (51) fixed to the upper aeration nozzle (3) has an opening (512) for preventing solid particles from accumulating therein.

4. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 2 is characterized in that: The lower stirring rod (22) is fixedly connected to the rotating shaft (21), and the upper stirring rod (23) is movable along the axial direction of the rotating shaft (21). The rotating shaft (21) is provided with a vibration component (6) for driving the upper stirring rod (23) to reciprocate along the axial direction of the rotating shaft (21). When the vibration component (6) drives the upper stirring rod (23) to move relative to the lower stirring rod (22), the lower aeration nozzle (4) moves up and down in the sleeve (51) relative to the upper aeration nozzle (3), so that bubbles are more dispersed in the water.

5. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 4 is characterized in that: A spoiler (232) is fixedly provided on both sides of the upper stirring rod (23) along the axial direction thereof. When the vibration component (6) drives the upper stirring rod (23) to move relative to the lower stirring rod (22), the spoiler (232) has a further spoiler effect in the water based on the mixing of wastewater and sludge by the upper stirring rod (23) and the lower stirring rod (22).

6. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 5 is characterized in that: A scraper bar (222) is fixedly provided on one side of the lower stirring rod (22) along the rotation direction, and the scraper bar (222) is in contact with the inner bottom of the pool body (1). When the lower stirring rod (22) rotates along with the rotating shaft (21), the scraper bar (222) stirs and scrapes up sludge deposited on the bottom of the pool, so that the sludge and the water body are more fully mixed.

7. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 5 is characterized in that: The vibration assembly (6) comprises a sliding sleeve (61) which is slidably mounted on a rotating shaft (21) for fixing an upper stirring rod (23), and a vibrator for driving the sliding sleeve (61) to vibrate reciprocatingly, wherein the sliding sleeve (61) has a cavity (611) which is connected to an upper air passage (231) of the upper stirring rod (23) and provides an air source, and the rotating shaft (21) has a channel (211) which is connected to a lower air passage (221) of a lower stirring rod (22) and provides an air source.

8. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 7 is characterized in that: The vibration assembly (6) further comprises a connecting rod (62) connected between the upper stirring rod (23) and the lower stirring rod (22) and having a stabilizing effect on the upper stirring rod (23); the two ends of the connecting rod (62) respectively extend in the direction of the upper stirring rod (23) and the lower stirring rod (22); the lower stirring rod (22) comprises a hinged portion (621) for rotationally connecting the corresponding end of the connecting rod (62); the upper stirring rod (23) comprises a sliding portion (622) for rotationally connecting the corresponding end of the connecting rod (62) and sliding along the axial direction thereof; the upper stirring rod (23) comprises a track (6221) for sliding the sliding portion (622).

9. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 8 is characterized in that: The fixed sleeve on the rotating shaft (21) is provided with a buffer portion (612) capable of supporting the sliding sleeve (61). When the lower end of the sliding sleeve (61) contacts the buffer portion (612), the position of the sliding sleeve (61) on the rotating shaft (21) is at the lowest point, and the aeration gap is left between the upper aeration nozzle (3) and the lower aeration nozzle (4).

10. The hydrogen peroxide wastewater treatment device combining explosion and sludge according to claim 7, characterized in that: A plurality of lower stirring rods (22) and upper stirring rods (23) are evenly distributed on the rotating shaft (21) around its circumference, all of the lower stirring rods (22) are fixedly connected to the rotating shaft (21), and all of the upper stirring rods (23) are fixedly connected to the sliding sleeve (61).

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