Sewage treatment device based on MBR membrane separation system

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device based on an MBR (Membrane Biological Reactor) membrane separation system, which comprises a sewage separation system and a support frame, and further comprises a plurality of bearing rods arranged in the support frame at equal intervals, according to the sewage treatment device based on the MBR membrane separation system, the multiple bearing rods are driven by the lifting type cleaning assembly to synchronously rotate in a reciprocating mode, the flexible brush wires are driven to scrape the surfaces of the sewage separation systems in an all-dimensional mode, and therefore the sewage separation systems can be cleaned conveniently. Meanwhile, the rotating flexible brush wires can drive water flow to form active disturbance, so that falling dirt is always in a dynamic flowing state, secondary attachment of the dirt on the membrane surface is effectively avoided, the lifting part is matched to drive the bearing rod to do axial reciprocating motion, and the flexible brush wires can cover and clean the outer side of the sewage separation system in a full-length mode; the problem of cleaning dead angles existing in a traditional fixed cleaning structure is solved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device based on an MBR membrane separation system. Background Technology

[0002] Membrane bioreactors (MBRs), as a wastewater treatment process that deeply integrates membrane separation technology with the traditional activated sludge process, have been widely used in urban domestic sewage, industrial wastewater treatment, and water reuse due to their significant advantages such as excellent effluent quality, small footprint, strong resistance to shock loads, and low sludge production. Their core principle is to achieve wastewater purification by using the highly efficient solid-liquid separation of the MBR membrane modules to retain activated sludge, microorganisms, and pollutants within the reactor. However, in practical use, we found that during the separation and treatment of wastewater using MBR membranes, the membrane surface is easily affected by the adsorption and deposition of pollutants, leading to membrane pore blockage, decreased flux, increased operating energy consumption, and shortened membrane module lifespan. Existing technologies still have shortcomings in mitigating membrane fouling problems. Conventional aeration and flushing methods are difficult to effectively remove organic matter, colloids, and biofilms formed by microorganisms attached to the membrane surface. Physical cleaning methods are complex to operate and require shutdown, affecting the continuous operation efficiency of the system. While chemical cleaning can effectively degrade organic pollutants and restore membrane flux, frequent use will accelerate membrane material aging and may introduce the risk of secondary pollution. Therefore, we propose a wastewater treatment device based on an MBR membrane separation system. Summary of the Invention

[0003] One of the technical problems this application aims to solve is: how to effectively alleviate membrane fouling in an MBR membrane separation system without affecting the efficiency of wastewater treatment, extend the service life of the MBR membrane module, and reduce the system's operation and maintenance costs.

[0004] To address the aforementioned technical problems, embodiments of this application provide a wastewater treatment device based on an MBR membrane separation system, comprising a wastewater separation system and a support frame, and further including: Multiple support rods are provided, and the multiple support rods are equally spaced within the support frame. The multiple support rods are respectively arranged between the multiple sewage separation systems. Multiple flexible brush filaments are provided on both sides of the multiple support rods, and the multiple flexible brush filaments are in contact with the adjacent sewage separation system. Multiple nozzles are provided, and each nozzle is respectively located on the outside of a corresponding support rod. Each nozzle corresponds to a flexible brush bristle and is spaced apart, for spraying out an impact airflow. The lifting cleaning component is installed inside the support frame. The lifting cleaning component drives multiple support rods to rotate synchronously, so that the flexible bristles scrape the surface of the sewage separation system as they rotate with the multiple support rods. At the same time, the reciprocating flexible bristles drive the water flow, thereby pushing the water flow to form a disturbance on the surface of the sewage separation system, and thus driving the detached dirt to be in a dynamic flow state with the water flow. An intermittent aeration component is mounted on the support frame. The intermittent aeration component generates airflow, which is then intermittently ejected through multiple nozzles to produce bubbles. These bubbles are used in conjunction with multiple flexible brushes to impact the surface of the wastewater separation system, thereby driving away surface dirt from the wastewater separation system.

[0005] In some embodiments, the lifting cleaning assembly includes a drive member disposed on the support frame, which generates the power required for the rotation of the bearing rods. A lifting member is disposed on the outer side of the support frame, which drives multiple bearing rods to move axially, thereby driving multiple flexible bristles and multiple nozzles to reciprocate along the outer axial direction of the wastewater separation system. Swinging members are disposed at both ends of multiple bearing rods, which drive corresponding bearing rods to swing back and forth, thereby driving multiple flexible bristles to reciprocate cleaning the surface of the wastewater separation system. Switching members are disposed at both ends of multiple bearing rods, which drive the bearing rods to maintain a swinging state during the lifting process.

[0006] In some embodiments, the driving component includes a motor bracket disposed on the top of the support frame, a drive motor disposed inside the motor bracket, two screws rotatably disposed on both sides of the support frame, one of the four screws having its top end disposed at the output end of the drive motor, gears disposed on the outer sides of the four screws, and a timing belt disposed on the outer sides of the four gears, the timing belt having tooth grooves that cooperate with the four gears.

[0007] In some embodiments, the lifting component includes lifting plates respectively disposed on both sides of the support frame. The two ends of the two lifting plates are respectively threadedly connected to four adjacent screws. Multiple lifting blocks are disposed on opposite sides of the two lifting plates, and the multiple lifting blocks are arranged at equal intervals and are respectively located at both ends of adjacent bearing rods. Multiple limiting frames are disposed on both sides of the support frame, and each of the multiple limiting frames has a limiting groove. Each end of the multiple lifting blocks is provided with a limiting plate that cooperates with the multiple limiting grooves, and the multiple lifting blocks are slidably disposed in the corresponding limiting frames.

[0008] In some embodiments, the swing member includes a bearing disposed within the lifting block, a swing rod disposed on the inner ring of the bearing, the swing rod being rotatably disposed within the lifting block via the bearing, one end of the swing rod away from the bearing being disposed on an adjacent support rod, a torsion spring being disposed on the outer side of the swing rod, and the other end of the torsion spring being disposed within the lifting block, a swing plate being slidably disposed through the swing rod, and two limiting plates being disposed on the side of the lifting block near the swing plate, the two limiting plates being located above and below the swing plate respectively, and respectively abutting the top and bottom of the swing plate. The multiple limiting frames are provided with swing grooves, and the swing plate is located in the swing groove. Multiple first trigger plates are provided on one side of the swing groove, and multiple second trigger plates are provided on the other side. The multiple first trigger plates and multiple second trigger plates are arranged at equal intervals, and the multiple first trigger plates and multiple second trigger plates are used in conjunction with the swing plate. The bottom of the swing plate near the multiple first trigger plates is in contact with the top of the uppermost first trigger plate, and the top of the swing plate near the first trigger plate is inclined, and the bottom of the other end is inclined.

[0009] In some embodiments, the switching element includes two inclined slots formed on the top of the swing plate, a switching cover is provided on the top of the swing rod, a switching rod is slidably disposed inside the switching cover, and the bottom end of the switching rod is V-shaped and cooperates with the two inclined slots. The switching rod is slidably disposed inside the swing rod, a switching spring is provided at the top end of the switching rod, and the other end of the switching spring is disposed inside the switching cover.

[0010] In some embodiments, the intermittent aeration assembly includes an inflation member disposed above the support frame, which generates and guides airflow. A trigger member is disposed on the outer side of each of the plurality of swing rods, which drives the gas to be intermittently discharged into the nozzle. A discharge member is disposed inside each of the plurality of support rods, which guides the airflow into the corresponding plurality of nozzles, thereby guiding the airflow to be discharged into the wastewater through the plurality of nozzles.

[0011] In some embodiments, the inflatable component includes an air pump disposed above the support frame. The air pump has an inlet pipe at its input end and an outlet pipe at its output end. The air pump output end is provided with two telescopic hoses. Each of the two telescopic hoses has a shunt pipe at its other end. Each of the two shunt pipes has multiple connecting pipes at its bottom end. The two telescopic hoses are respectively connected to the corresponding shunt pipes, and the two shunt pipes are respectively connected to the corresponding multiple connecting pipes. The multiple connecting pipes are respectively located above multiple swing rods.

[0012] In some embodiments, the trigger includes a fixing block disposed at the end of the two limiting plates away from the bearing. The fixing block has a first exhaust groove that communicates with the connecting pipe. The fixing block also has a second exhaust groove located below the first exhaust groove. A fixing plate is disposed between the first and second exhaust grooves. A transition groove is disposed on the fixing plate, through which the first exhaust groove communicates with the second exhaust groove. A rubber plate that cooperates with the transition groove is slidably disposed in the transition groove. A trigger spring is disposed on the top of the rubber plate. A fixing frame is disposed on the top of the fixing plate, and the top of the trigger spring is disposed on the fixing frame. A swing plate is disposed at the bottom of the swing rod. The swing plate is slidably disposed in the second exhaust groove and cooperates with the rubber plate. An air inlet groove is disposed in the swing plate.

[0013] In some embodiments, the discharge component includes a discharge slot formed within the support rod, and a plurality of nozzles communicate with corresponding discharge slots. An auxiliary slot is formed within the swing rod, and the discharge slot communicates with an adjacent air intake slot through the auxiliary slot.

[0014] The present invention has at least the following beneficial effects: Multiple support rods are driven to rotate synchronously by a lifting cleaning component, which in turn drives flexible bristles to scrape the surface of the wastewater separation system in all directions. At the same time, the rotating flexible bristles can drive the water flow to create active disturbance, so that the detached dirt is always in a dynamic flow state, effectively preventing the dirt from re-adhering to the membrane surface. In conjunction with the lifting component, the support rods are driven to move axially back and forth, and the flexible bristles can cover the entire length of the outer side of the wastewater separation system for cleaning. This solves the problem of cleaning dead corners in traditional fixed cleaning structures. The coordinated design of the swing component and the switching component ensures that the support rods always remain in a swing state during the lifting process, realizing a composite cleaning action of rotation and scraping combined with axial movement. This greatly improves the thoroughness of dirt removal and ensures a long-term stable filtration flux of the wastewater separation system.

[0015] The intermittent aeration unit generates airflow that is intermittently ejected through nozzles to form bubbles. This, combined with the mechanical scraping of the flexible brushes, creates a dual impact. When the bubbles impact the membrane surface, they break the bond between the dirt and the membrane, helping the flexible brushes to more easily remove stubborn dirt. Compared to single mechanical cleaning or continuous aeration, the dirt removal efficiency is significantly improved. The intermittent aeration design eliminates the high energy consumption of traditional continuous aeration. Through precise coordination with the cleaning action of the flexible brushes, it effectively reduces the energy consumption of the aeration system while ensuring cleaning effectiveness. At the same time, the rising bubbles further enhance water turbulence and improve the mass transfer efficiency of the membrane surface. This not only helps to remove dirt but also improves the dissolved oxygen environment around the membrane unit, indirectly improving the wastewater treatment effect.

[0016] By linking and controlling the lifting cleaning components and the intermittent aeration components, the timing of the cleaning action and the airflow disturbance is coordinated. This allows the airflow to be sprayed synchronously during the cleaning process of the flexible bristles. When the support rod is flipped, the flexible bristles continue to clean the residual dirt on the surface of the sewage separation system, while the nozzle briefly stops spraying air. This not only effectively avoids the airflow from interfering with the cleaning path of the flexible bristles during the flipping process, but also improves the stability and continuity of the cleaning action and further enhances the system's self-cleaning ability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the lifting cleaning component structure of the present invention; Figure 3 This is a schematic diagram of the driving component structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of area A; Figure 5 This is a schematic diagram of a portion of the intermittent aeration component of the present invention; Figure 6 This is a schematic diagram of the structure of the inflatable component of the present invention; Figure 7 This is a schematic diagram of the lifting component of the present invention; Figure 8 This is a schematic diagram of the swing plate structure of the present invention; Figure 9 This is a schematic diagram of the torsion spring structure of the present invention; Figure 10 This is a schematic diagram of the limiting plate structure of the present invention; Figure 11 This is a side sectional view of the trigger component structure of the present invention; Figure 12 This is a schematic diagram of the first exhaust groove structure of the present invention; Figure 13 This is a schematic diagram of the second exhaust groove structure of the present invention.

[0018] In the diagram: 1. Wastewater separation system; 2. Support frame; 3. Bearing rod; 4. Flexible brush bristles; 5. Spray pipe; 6. Lifting cleaning assembly; 7. Intermittent aeration assembly; 8. Drive component; 81. Motor bracket; 82. Drive motor; 83. Screw; 84. Gear; 85. Synchronous belt; 86. Gear groove; 9. Lifting component; 91. Lifting plate; 92. Lifting block; 93. Limiting frame; 94. Limiting groove; 95. Limiting plate; 10. Swinging component; 101. Bearing; 102. Swinging rod; 103. Torsion spring; 104. Swinging plate; 105. Limiting plate; 106. Swinging groove; 107. First trigger plate; 108. Second trigger plate; 11. Trigger plate; 12. Switching component; 13. Inclined groove; 14. Switching cover; 15. Switching rod; 16. Switching spring; 17. Inflating component; 18. Air pump; 19. Inlet pipe; 10. Exhaust pipe; 112. Telescopic hose; 123. Diverter pipe; 124. Connecting pipe; 125. Trigger; 126. Connecting pipe; 13. Trigger; 14. Fixing block; 15. First exhaust groove; 16. Second exhaust groove; 17. Fixing plate; 18. Transition groove; 19. Rubber plate; 10. Trigger spring; 10. Fixing bracket; 111. Swing plate; 12. Inlet groove; 13. Discharge component; 14. Discharge groove; 15. Auxiliary groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1-13 The present invention provides a technical solution: a wastewater treatment device based on an MBR membrane separation system, comprising a wastewater separation system 1 and a support frame 2, and further comprising: Multiple support rods 3 are provided, and the multiple support rods 3 are equally spaced within the support frame 2. The multiple support rods 3 are respectively arranged between multiple sewage separation systems 1. Multiple flexible brush filaments 4 are provided on both sides of the multiple support rods 3, and the multiple flexible brush filaments 4 are in contact with the adjacent sewage separation system 1. Multiple nozzles 5 are provided, and the multiple nozzles 5 are respectively located on the outside of the corresponding support rod 3. The multiple nozzles 5 correspond one-to-one with the multiple flexible brush filaments 4 and are arranged at intervals to spray out impact airflow. The lifting cleaning component 6 is installed inside the support frame 2. The lifting cleaning component 6 drives multiple bearing rods 3 to rotate synchronously, so that the flexible brush 4 scrapes the surface of the sewage separation system 1 while following the rotation of the multiple bearing rods 3. At the same time, the reciprocating rotation of the flexible brush 4 drives the water flow, thereby pushing the water flow to form a disturbance on the surface of the sewage separation system 1, and thus driving the detached dirt to be in a dynamic flow state with the water flow. Intermittent aeration component 7 is installed on support frame 2. The intermittent aeration component 7 generates airflow and sprays it out intermittently through multiple nozzles 5, thereby generating bubbles. These bubbles are used in conjunction with multiple flexible brushes 4 to impact the surface of sewage separation system 1, driving the surface dirt of sewage separation system 1 to detach.

[0021] The lifting cleaning assembly 6 includes a drive component 8 mounted on a support frame 2, which generates the power required for the rotation of the bearing rods 3. A lifting component 9 is mounted on the outside of the support frame 2, which drives multiple bearing rods 3 to move axially, thereby driving multiple flexible brushes 4 and multiple nozzles 5 to reciprocate along the outer axial direction of the sewage separation system 1. Each end of the multiple bearing rods 3 is equipped with a swing component 10, which drives the corresponding bearing rods 3 to swing back and forth, thereby driving multiple flexible brushes 4 to reciprocate cleaning the surface of the sewage separation system 1. Each end of the multiple bearing rods 3 is equipped with a switching component 11, which drives the bearing rods 3 to maintain a swinging state during the lifting process.

[0022] The driving component 8 includes a motor bracket 81 mounted on top of the support frame 2. A drive motor 82 is housed within the motor bracket 81. Two screws 83 are rotatably mounted on each side of the support frame 2. One of the four screws 83 has its top end positioned at the output end of the drive motor 82. Gears 84 are mounted on the outer sides of each of the four screws 83, and a timing belt 85 is mounted on the outer sides of each of the four gears 84. The timing belt 85 has toothed grooves 86 that mesh with the four gears 84. When the drive motor 82 is started, it drives the screws 83 at its output end to rotate. When the screws 83 at the output end of the drive motor 82 rotate, the screws 83 mounted on its output end rotate... The outer gear 84 will rotate together, thereby driving the synchronous belt 85 to move through multiple tooth grooves 86. When the synchronous belt 85 moves, the four gears 84 meshing with the tooth grooves 86 will rotate simultaneously. The synchronous rotation of the four gears 84 will drive the screws 83 at their respective shafts to rotate synchronously. Its function is to ensure that the four screws 83 rotate synchronously under the drive of the drive motor 82, thereby providing a power basis for the stable lifting of the lifting plate 91, avoiding lifting jamming or tilting of the bearing rod 3 due to asynchronous rotation of the screws 83, and ensuring that the cleaning action between the flexible brush 4 and the surface of the sewage separation system 1 is uniform and reliable.

[0023] The lifting component 9 includes lifting plates 91 respectively disposed on both sides of the support frame 2. The two ends of each lifting plate 91 are threadedly connected to four adjacent screws 83. Multiple lifting blocks 92 are disposed on opposite sides of each lifting plate 91, and these blocks are equidistantly arranged at both ends of adjacent bearing rods 3. Multiple limiting frames 93 are disposed on both sides of the support frame 2, each containing a limiting groove 94. Each end of the lifting blocks 92 is provided with a limiting plate 95 that cooperates with the limiting groove 94, and the lifting blocks 92 are slidably disposed within the corresponding limiting frames 93. When the four screws 83 rotate synchronously, the two lifting plates 91 disposed on the outer sides of the four screws 83 descend vertically under threaded drive. During the descent, the lifting plates 91 will... This causes multiple corresponding lifting blocks 92 to move downwards synchronously, allowing the lifting blocks 92 to slide within the limiting frame 93. The limiting plates 95 on both sides of the lifting blocks 92 will slide within the corresponding limiting grooves 94, ensuring the stability and synchronization of the lifting process. Its function is to ensure that the lifting blocks 92 slide stably along the limiting grooves 94 during the lifting process, preventing shaking and jamming caused by off-center loading or vibration. It provides guiding support for the smooth vertical movement of the subsequent bearing rod 3 during the lifting process, avoiding deviation or tilting during the lifting process, thereby avoiding damage to the MBR membrane on the surface of the sewage separation system 1. It effectively prevents the risk of scratches or punctures to the MBR membrane surface caused by rigid contact or uncontrolled movement during the cleaning process, improving the safety and reliability of the device operation.

[0024] The swing component 10 includes a bearing 101 disposed within the lifting block 92. A swing rod 102 is disposed within the inner ring of the bearing 101. The swing rod 102 is rotatably disposed within the lifting block 92 via the bearing 101. One end of the swing rod 102 away from the bearing 101 is disposed on an adjacent support rod 3. A torsion spring 103 is disposed on the outer side of the swing rod 102, with the other end of the torsion spring 103 disposed within the lifting block 92. A swing plate 104 is slidably disposed through the swing rod 102. Two limiting plates 105 are disposed on the side of the lifting block 92 near the swing plate 104, located above and below the swing plate 104 respectively, and respectively abutting the top and bottom of the swing plate 104. Multiple limiting frames 93 each have a swing groove 106. Plate 104 is located within swing groove 106. Multiple first trigger plates 107 are arranged on one side of swing groove 106, and multiple second trigger plates 108 are arranged on the other side. The multiple first trigger plates 107 and multiple second trigger plates 108 are arranged at equal intervals and cooperate with swing plate 104. The bottom of the swing plate 104 near one end of the multiple first trigger plates 107 is in contact with the top of the uppermost first trigger plate 107. The top of the end of the swing plate 104 near the first trigger plates 107 is sloped, and the bottom of the other end is sloped. When lifting block 92 moves downward, bearing 101 located within lifting block 92 will descend along with it. The process of bearing 101 descending... In the middle, the swing rod 102 set in its inner ring will descend together with it. At this time, the swing plate 104 slidably set in the swing rod 102 will descend synchronously with the swing rod 102. During the descent of the swing plate 104, the end of the swing plate 104 near the first trigger plate 107 will contact the first trigger plate 107, thereby causing it to rotate under the action of the first trigger plate 107. As the lifting block 92 continues to move down, the rotation angle of the swing plate 104 gradually increases until one end of the swing plate 104 disengages from the first trigger plate 107. During the rotation of the swing plate 104, the swing rod 102 on its outer side will rotate under the action of the swing plate 104, thus forming a motion state in which the swing rod 102 rotates and descends at the same time. When the swing plate 104 rotates under the action of the swing arm 102, the torsion spring 103 located on the outside of the swing arm 102 will start to store force. As the swing plate 104 disengages from the first trigger plate 107, the torsion spring 103 immediately releases its elastic force, causing it to drive the swing arm 102 to swing rapidly in the opposite direction and reset, until the top and bottom of the swing plate 104 are once again in contact with the two limiting plates 105, thus completing one swing reset action. During this process, the bearing rod 3 located at one end of the swing arm 102 will move together with the swing arm 102, so that the flexible bristles 4 on the outside of the bearing rod 3 repeatedly clean the surface of the sewage separation system 1. Under the action of the lifting block 92, the bearing rod 3 drives the flexible bristles 4 to rotate back and forth to clean the surface dirt of the sewage separation system 1.The lifting block 92 moves vertically downwards to completely cover and clean the surface dirt of the sewage separation system 1 until it reaches the bottom of the lower limit frame 93. At this point, the drive motor 82 is started to rotate, causing the screw 83 to rotate in the opposite direction, driving the lifting plate 91 and the lifting block 92 to rise synchronously. When the lifting block 92 rises, the swing rod 102 will drive the swing plate 104 to rise together. When the swing plate 104 rises, due to the blocking effect of the two limiting plates 105, the swing plate 104 cannot be squeezed by the first trigger plate 107 during the rise. When the swing plate 104 rises to the point where its top contacts the bottom of the first trigger plate 107, as the swing plate 104 continues to rise, the first trigger plate 107 will first contact the top inclined surface of the swing plate 104. Under the squeezing action of the two limiting plates 105 and the first trigger plate 107, the swing plate 104 is forced to slide, thereby causing the swing plate 104 to swing. Plate 104 slides within the swing rod 102 and towards the second trigger plate 108 until it disengages from the first trigger plate 107. At this point, the end of the swing plate 104 away from the first trigger plate 107 is positioned between the two second trigger plates 108. As the swing plate 104 continues to rise, the top of the swing plate 104 gradually contacts the bottom of the second trigger plate 108 and is forced to rotate under the squeezing action of the second trigger plate 108. Its rotation direction is the same as the swing direction during the descent, thus ensuring that the swing rod 102 maintains repeated swinging during the ascent. This drives the flexible brush 4 on the outside of the support rod 3 to continuously clean the surface of the wastewater separation system 1. Its function is to drive the swing rod 102 to achieve continuous swinging motion during the up and down stroke through the lifting block 92, thereby ensuring that the flexible brush 4 continuously and repeatedly brushes the surface of the MBR membrane wastewater separation system 1 throughout its entire stroke.

[0025] The switching component 11 includes two inclined slots 111 formed on the top of the swing plate 104. A switching cover 112 is provided on the top of the swing rod 102. A switching rod 113 is slidably disposed inside the switching cover 112, and the bottom end of the switching rod 113 is V-shaped and cooperates with the two inclined slots 111. The switching rod 113 is slidably disposed inside the swing rod 102. A switching spring 114 is provided at the top end of the switching rod 113, and the other end of the switching spring 114 is disposed inside the switching cover 112. When the swing plate 104 is squeezed and slides inside the swing rod 102, the swing plate 104 will push the switching rod 113 up. At this time, the switching spring 114 at the top of the switching rod 113 is compressed and stores force. After the swing plate 104 slides to the other end, the switching spring 114 releases the stored force and pushes the switching rod 113 to reset, so that the switching rod 113 is inserted into the swing plate 102. It should be noted that the bottom of the switching rod 113 is V-shaped to better fit the contour of the inclined groove 111, ensuring that the switching rod 113 can be smoothly lifted when the swing plate 104 slides, and preventing the swing plate 104 from sliding during rotation. This ensures that the swing plate 104 can only slide when it is horizontal and one end is pressed, thus ensuring that the sliding and rotating actions of the swing plate 104 have clear triggering conditions and directional control. Its function is to achieve automatic locking and release of the sliding position of the swing plate 104 through the cooperation of the switching rod 113 and the inclined groove 111, ensuring that the swing rod 102 can maintain stable swing switching during the rising and falling strokes, thereby ensuring the continuity and reliability of the reciprocating motion of the flexible bristles 4 and avoiding cleaning blind spots due to swing failure.

[0026] The intermittent aeration assembly 7 includes an air-inflating component 12 disposed above the support frame 2, which generates and guides airflow. Multiple swing rods 102 are equipped with triggering components 13 on their outer sides, which drive the gas to be intermittently discharged into the nozzles 5. Multiple bearing rods 3 are equipped with discharge components 14, which guide the airflow into the corresponding nozzles 5, thereby guiding the airflow to be discharged into the sewage through the multiple nozzles 5.

[0027] The inflation component 12 includes an air pump 121 mounted above the support frame 2. The air pump 121 has an inlet pipe 122 at its input end and an outlet pipe 123 at its output end. Two telescopic hoses 124 are mounted at the output end of the air pump 121. Each of the two telescopic hoses 124 has a branch pipe 125 at its other end. Multiple connecting pipes 126 are mounted at the bottom of each of the two branch pipes 125. Each of the two telescopic hoses 124 is connected to a corresponding branch pipe 125, and each branch pipe 125 is connected to a corresponding multiple connecting pipes 126. The multiple connecting pipes 126 are located on multiple swing arms 102. The air pump 121 is started, which draws in outside air through the intake pipe 122 and then delivers the air to two telescopic hoses 124 through the exhaust pipe 123. The airflow entering the telescopic hoses 124 will enter the corresponding diverter pipes 125 respectively. The airflow is further distributed in the diverter pipes 125 to multiple connecting pipes 126 connected to it, and enters the first exhaust groove 132 in the fixed block 131 through the connecting pipes 126. Its function is to deliver air to the first exhaust groove 132 in the fixed block 131 through the air pump 121, thereby providing an initial path for the subsequent staged emission of airflow.

[0028] The trigger element 13 includes a fixing block 131 disposed at the end of the two limiting plates 105 away from the bearing 101. A first exhaust groove 132 is formed in the fixing block 131, which communicates with the connecting pipe 126. A second exhaust groove 133 is formed in the fixing block 131 and is located below the first exhaust groove 132. A fixing plate 134 is disposed between the first exhaust groove 132 and the second exhaust groove 133. A transition groove 135 is formed on the fixing plate 134, through which the first exhaust groove 132 communicates with the second exhaust groove 133. A rubber plate 136 is slidably disposed within the transition groove 135 and used in conjunction with it. A trigger spring 137 is disposed on the top of the rubber plate 136. A fixing bracket 138 is disposed on the top of the fixing plate 134, and the top of the trigger spring 137 is disposed on the fixing bracket 138. A swing plate 139 is disposed at the bottom of the swing rod 102. The swing plate 139 is slidably disposed within the second exhaust groove 133 and is used in conjunction with the rubber plate 136. An air inlet groove 1310 is formed in the swing plate 139. When the swing rod 102 rotates under the action of the swing plate 104, The swing plate 139, located outside the swing rod 102, swings synchronously with the swing rod 102 and slides in the second exhaust groove 133 within the fixed block 131 until the end of the swing plate 139 away from the swing rod 102 contacts the bottom of the rubber plate 136. As the swing rod 102 continues to rotate, the swing plate 139 pushes the rubber plate 136 upward, causing the airflow in the first exhaust groove 132 to enter the intake groove 1310. At this time, the trigger spring 137 located at the top of the rubber plate 136 is compressed and stores energy. When the swing rod 102 rotates in the opposite direction... The swing plate 139 then swings in the opposite direction and disengages from the rubber plate 136. At this time, the spring 137 is triggered to release its elastic force, pushing the rubber plate 136 to block the transition groove 135, thereby re-isolating the second exhaust groove 133 from the first exhaust groove 132. This prevents the gas in the first exhaust groove 132 from entering the intake groove 1310. Its function is to control the opening and closing of the intake groove 1310 and the first exhaust groove 132 through the reciprocating rotation of the swing rod 102, so as to realize the intermittent supply of airflow, thereby providing a control basis for the periodic jetting of the subsequent nozzle 5.

[0029] The discharge component 14 includes a discharge groove 141 opened in the support rod 3, and multiple nozzles 5 are connected to the corresponding discharge groove 141. An auxiliary groove 142 is opened in the swing rod 102, and the discharge groove 141 is connected to the adjacent air inlet groove 1310 through the auxiliary groove 142. When the airflow enters the swing plate 139 through the air inlet groove 1310, the airflow will enter the discharge groove 141 opened in the support rod 3 along the auxiliary groove 142. The airflow is ejected from multiple nozzles 5 through the discharge groove 141, forming multiple directional airflows that impact the surface of the sewage separation system 1 and form a large number of bubbles in the sewage, which enhances the fluid disturbance on the membrane surface and effectively prevents sludge adhesion and pore blockage. Its function is to improve the cleaning efficiency and reduce the membrane fouling rate through the synergistic effect of gas impact and water flow shear force, thereby maintaining the stable flux and long-term operating performance of the sewage separation system 1.

[0030] In use, when the wastewater separation system 1 is used to treat wastewater in the wastewater tank, the wastewater separation system 1 is simply placed in the wastewater, and then the wastewater is filtered through the hollow membrane tube with the MBR membrane. This is existing technology and will not be elaborated on here. During the wastewater filtration process, the air pump 121 is started, which draws in external air through the air inlet pipe 122, and then delivers the air to two telescopic hoses 124 through the exhaust pipe 123. The airflow entering the telescopic hoses 124 will enter the corresponding distribution pipes 125. The airflow is further distributed to multiple connecting pipes 126 connected to it in the distribution pipes 125, and enters the first exhaust groove 132 in the fixed block 131 through the connecting pipes 126. When the airflow enters the first exhaust groove 132 in the fixed block 131, the airflow will enter the first exhaust groove 132 in the fixed block 131. After the first exhaust groove 132 is exhausted, the rubber plate 136, under the pressure of the airflow and the action of the trigger spring 137, will completely close the transition groove 135, thus blocking the path of airflow from the first exhaust groove 132 to the second exhaust groove 133. At this time, the drive motor 82 is started, which drives the screw 83 at its output end to rotate. When the screw 83 at the output end of the drive motor 82 rotates, the gear 84 set on its outer side will also rotate, thereby driving the synchronous belt 85 to move through multiple tooth grooves 86. When the synchronous belt 85 moves, the four gears 84 meshing with the tooth grooves 86 will rotate simultaneously. The synchronous rotation of the four gears 84 will drive the screw 83 at its respective shaft to rotate synchronously. When the four screws 83 rotate synchronously... Two lifting plates 91, located outside the four screws 83, descend vertically under the drive of the screws. During descent, the lifting plates 91 drive multiple corresponding lifting blocks 92 to move downwards synchronously, causing the lifting blocks 92 to slide within the limiting frame 93. The limiting plates 95 on both sides of the lifting blocks 92 slide within their respective limiting grooves 94, ensuring stability and synchronization during the lifting process. As the lifting blocks 92 move downwards, the bearings 101 within them descend along with them. During the descent of the bearings 101, the swing rods 102 within their inner rings descend along with them. At this time, the swing plates 104, sliding within the swing rods 102, descend synchronously with the swing rods 102. During the descent of the swing plate 104, the end of the swing plate 104 closest to the first trigger plate 107 will contact the first trigger plate 107, causing it to rotate under the action of the first trigger plate 107. As the lifting block 92 continues to move downward, the rotation angle of the swing plate 104 gradually increases until one end of the swing plate 104 disengages from the first trigger plate 107. During the rotation of the swing plate 104, the swing rod 102 on its outer side will rotate under the action of the swing plate 104, thus forming a motion state in which the swing rod 102 rotates while descending. When the swing rod 102 rotates under the action of the swing plate 104, the torsion spring 103 located on the outer side of the swing rod 102 will begin to store force. As the swing plate 104 disengages from the first trigger plate 107,The torsion spring 103 immediately releases its elastic force, causing it to drive the swing rod 102 to swing rapidly in the opposite direction and return to its original position until the top and bottom of the swing plate 104 are once again in contact with the two limiting plates 105, thus completing one swinging and resetting action. During this process, the support rod 3 set at one end of the swing rod 102 will move together with the swing rod 102, so that the flexible brush bristles 4 on the outside of the support rod 3 repeatedly clean the surface of the sewage separation system 1. Under the action of the lifting block 92, the support rod 3 drives the flexible brush bristles 4 to rotate back and forth to clean the surface dirt of the sewage separation system 1, while moving downward in the vertical direction, thereby achieving a complete coverage cleaning of the surface dirt of the sewage separation system 1, until the lifting block 92 descends to the bottom of the limiting frame 93. At this time, the start... The drive motor 82 flips, causing the screw 83 to rotate in the opposite direction, driving the lifting plate 91 and lifting block 92 to rise synchronously. When the lifting block 92 rises, the swing rod 102 will drive the swing plate 104 to rise together. When the swing plate 104 rises, due to the blocking effect of the two limiting plates 105, the swing plate 104 cannot rotate due to the squeezing of the first trigger plate 107. When the swing plate 104 rises to the point where its top contacts the bottom of the first trigger plate 107, as the swing plate 104 continues to rise, the first trigger plate 107 will first contact the top inclined surface of the swing plate 104. Under the squeezing action of the two limiting plates 105 and the first trigger plate 107, the swing plate 104 is forced to slide. This causes the swing plate 104 to slide within the swing rod 102 and towards the second trigger plate 108 until it disengages from the first trigger plate 107. At this point, the end of the swing plate 104 away from the first trigger plate 107 is located between the two second trigger plates 108. As the swing plate 104 continues to rise, the top of the swing plate 104 gradually contacts the bottom of the second trigger plate 108 and is forced to rotate under the squeezing action of the second trigger plate 108. The direction of rotation is the same as the swing direction during the descent, thus ensuring that the swing rod 102 continues to swing repeatedly during the ascent, thereby driving the flexible brush filaments 4 on the outside of the support rod 3 to continuously clean the surface of the sewage separation system 1 until the swing rod 102 moves with the lifting block. When the lifting block 92 rises to the top of the limiting frame 93, the drive motor 82 is restarted in reverse, causing the inclined surface at the bottom of the swing plate 104 to contact the top of the second trigger plate 108. Under the pressure of the second trigger plate 108, the swing plate 104 slides towards the first trigger plate 107 until its end contacts the first trigger plate 107 again and is squeezed and rotates, thus restoring the initial swing state. This achieves continuous switching of the swing action during the rising and falling strokes. The entire cleaning process is cyclically executed in the reciprocating motion of the lifting block 92 rising and falling. When it reaches the bottom or top of the limiting frame 93, it can automatically complete the swing reset and trigger switching, ensuring that the flexible brush filaments 4 always adhere to the membrane surface for cleaning during the lifting process. When the swing plate 104 is pressed and slides within the swing rod 102, the swing plate 104 will lift the switching rod 113. At this time, the switching spring 114 set at the top of the switching rod 113 is compressed and stored. After the swing plate 104 slides to the other end, the switching spring 114 releases the stored force and pushes the switching rod 113 to reset, so that the switching rod 113 is inserted into the corresponding inclined groove 111. It should be noted that the bottom end of the switching rod 113 is V-shaped, which can better fit the contour of the inclined groove 111, ensuring that the swing plate 104 can smoothly lift the switching rod 113 when it slides, and also preventing it from sliding during the rotation of the swing plate 104. This ensures that the swing plate 104 can only slide when it is in a horizontal state and one end is pressed, thereby ensuring that the sliding and rotation actions of the swing plate 104 have clear triggering conditions and directional control. When the swing rod 102 rotates under the action of the swing plate 104, the swing plate 139 located outside the swing rod 102 will swing synchronously with the swing rod 102 and slide in the second exhaust groove 133 in the fixed block 131 until the end of the swing plate 139 away from the swing rod 102 contacts the bottom of the rubber plate 136. As the swing rod 102 continues to rotate, the swing plate 139 pushes the rubber plate 136 upward, so that the airflow in the first exhaust groove 132 enters the air intake groove 1310. At this time, the trigger spring 137 located on the top of the rubber plate 136 will be compressed and stored. When the swing rod 102 rotates in the opposite direction, the swing plate 139 swings in the opposite direction and disengages from the fixed block 131. When the rubber plate 136 contacts, the spring 137 is triggered to release its elastic force, pushing the rubber plate 136 to block the transition groove 135, so that the second exhaust groove 133 and the first exhaust groove 132 are separated again, thus preventing the gas in the first exhaust groove 132 from entering the air inlet groove 1310. When the airflow enters the swing plate 139 through the air inlet groove 1310, the airflow will enter the discharge groove 141 opened in the bearing rod 3 along the auxiliary groove 142. The airflow is ejected from multiple nozzles 5 through the discharge groove 141, forming multiple directional airflows that impact the surface of the sewage separation system 1 and form a large number of bubbles in the sewage, enhancing the fluid disturbance on the membrane surface and effectively preventing sludge adhesion and pore blockage. When the support rod 3 drives the flexible brush filaments 4 to clean the surface dirt of the sewage separation system 1 and the air bubbles generated by the large-scale jetting airflow from the nozzle 5, it can cause directional flow and gas-liquid mixing effect inside the sewage, further improving the cleaning efficiency of the membrane surface. It can not only effectively remove the dirt from the surface of the sewage separation system 1, but also keep the removed dirt in an active state, preventing it from depositing or re-adhering to the membrane surface. This improves the thoroughness of cleaning and the stability of system operation, allowing the sewage separation system 1 to maintain high-efficiency filtration performance during continuous operation, improving sewage treatment efficiency. Moreover, the entire cleaning process can achieve efficient cleaning and anti-clogging maintenance of the sewage separation system 1 without stopping the machine or adding chemical agents, ensuring long-term stable operation of the system.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A wastewater treatment device based on an MBR membrane separation system, comprising a wastewater separation system (1) and a support frame (2), characterized in that: It also includes: Multiple support rods (3) are provided, and the multiple support rods (3) are equidistantly arranged in the support frame (2). The multiple support rods (3) are respectively arranged between the multiple sewage separation systems (1). Multiple flexible brush filaments (4) are provided on both sides of the multiple support rods (3), and the multiple flexible brush filaments (4) are in contact with the adjacent sewage separation system (1). Multiple nozzles (5) are provided, and the multiple nozzles (5) are respectively arranged on the outside of the corresponding support rod (3). The multiple nozzles (5) correspond one-to-one with the multiple flexible brush filaments (4) and are arranged at intervals to spray out impact airflow. The lifting cleaning component (6) is installed inside the support frame (2). The lifting cleaning component (6) drives multiple bearing rods (3) to rotate synchronously, so that the flexible brush bristles (4) scrape the surface of the sewage separation system (1) while following the rotation of the multiple bearing rods (3). At the same time, the reciprocating flexible brush bristles (4) drive the water flow, thereby pushing the water flow to form a disturbance on the surface of the sewage separation system (1), and thus driving the detached dirt to be in a dynamic flow state with the water flow. An intermittent aeration component (7) is installed on the support frame (2). The intermittent aeration component (7) generates airflow and sprays it intermittently through multiple nozzles (5) to generate bubbles, which are used to cooperate with multiple flexible brushes (4) to impact the surface of the sewage separation system (1) and drive the surface dirt of the sewage separation system (1) to detach.

2. The wastewater treatment device based on the MBR membrane separation system according to claim 1, characterized in that: The lifting cleaning assembly (6) includes a drive member (8) mounted on the support frame (2). The drive member (8) generates the power required for the rotation of the bearing rod (3). A lifting member (9) is provided on the outside of the support frame (2). The lifting member (9) drives multiple bearing rods (3) to move axially, thereby driving multiple flexible brushes (4) and multiple nozzles (5) to reciprocate along the outer axial direction of the sewage separation system (1). Both ends of multiple bearing rods (3) are provided with swinging members (10). The swinging members (10) drive the corresponding bearing rods (3) to swing back and forth, thereby driving multiple flexible brushes (4) to reciprocate cleaning the surface of the sewage separation system (1). Both ends of multiple bearing rods (3) are provided with switching members (11). The switching members (11) drive the bearing rods (3) to always maintain a swinging state during the lifting process.

3. The wastewater treatment device based on the MBR membrane separation system according to claim 2, characterized in that: The driving component (8) includes a motor bracket (81) disposed on the top of the support frame (2), a drive motor (82) is disposed inside the motor bracket (81), two screws (83) are rotatably disposed on both sides of the support frame (2), one of the screws (83) has its top end disposed at the output end of the drive motor (82), gears (84) are disposed on the outer side of the four screws (83), and a synchronous belt (85) is disposed on the outer side of the four gears (84), and a tooth groove (86) is provided on the synchronous belt (85) to cooperate with the four gears (84).

4. The wastewater treatment device based on the MBR membrane separation system according to claim 3, characterized in that: The lifting component (9) includes lifting plates (91) respectively disposed on both sides of the support frame (2). The two ends of the two lifting plates (91) are respectively threaded to four adjacent screws (83). Multiple lifting blocks (92) are disposed on opposite sides of the two lifting plates (91), and the multiple lifting blocks (92) are arranged at equal intervals and are respectively located at both ends of adjacent bearing rods (3). Multiple limiting frames (93) are disposed on both sides of the support frame (2), and limiting grooves (94) are opened in the multiple limiting frames (93). Limiting plates (95) that cooperate with the multiple limiting grooves (94) are disposed at both ends of the multiple lifting blocks (92), and the multiple lifting blocks (92) are slidably disposed in the corresponding limiting frames (93).

5. The wastewater treatment device based on the MBR membrane separation system according to claim 4, characterized in that: The swinging component (10) includes a bearing (101) disposed within the lifting block (92). A swing rod (102) is disposed on the inner ring of the bearing (101). The swing rod (102) is rotatably disposed within the lifting block (92) via the bearing (101). One end of the swing rod (102) away from the bearing (101) is disposed on an adjacent support rod (3). A torsion spring (103) is disposed on the outer side of the swing rod (102), and the other end of the torsion spring (103) is disposed within the lifting block (92). A swing plate (104) is slidably disposed through the swing rod (102). Two limiting plates (105) are disposed on the side of the lifting block (92) near the swing plate (104). The two limiting plates (105) are respectively located above and below the swing plate (104) and are respectively connected to the swing plate (104). The top and bottom of the ) are attached together, and a swing groove (106) is provided in each of the multiple limiting frames (93). The swing plate (104) is located in the swing groove (106). A plurality of first trigger plates (107) are provided on one side of the swing groove (106), and a plurality of second trigger plates (108) are provided on the other side. The plurality of first trigger plates (107) and the plurality of second trigger plates (108) are arranged at equal intervals. The plurality of first trigger plates (107) and the plurality of second trigger plates (108) are used in conjunction with the swing plate (104). The swing plate (104) is close to one end of the plurality of first trigger plates (107), and its bottom is attached to the top of the uppermost first trigger plate (107). The top of the swing plate (104) close to the first trigger plate (107) is inclined, and the bottom of its other end is inclined.

6. The wastewater treatment device based on the MBR membrane separation system according to claim 5, characterized in that: The switching component (11) includes two inclined slots (111) formed on the top of the swing plate (104). A switching cover (112) is provided on the top of the swing rod (102). A switching rod (113) is slidably disposed inside the switching cover (112). The bottom end of the switching rod (113) is V-shaped and cooperates with the two inclined slots (111). The switching rod (113) is slidably disposed inside the swing rod (102). A switching spring (114) is provided at the top of the switching rod (113). The other end of the switching spring (114) is disposed inside the switching cover (112).

7. The wastewater treatment device based on an MBR membrane separation system according to claim 6, characterized in that: The intermittent aeration assembly (7) includes an air-inflating component (12) disposed above the support frame (2), which generates and guides airflow. A trigger (13) is disposed on the outer side of each of the multiple swing rods (102), which drives the gas to be intermittently discharged to the nozzle (5). A discharge component (14) is disposed inside each of the multiple bearing rods (3), which guides the airflow to the corresponding multiple nozzles (5) respectively, thereby guiding the airflow to be discharged into the sewage through the multiple nozzles (5).

8. The wastewater treatment device based on the MBR membrane separation system according to claim 7, characterized in that: The inflation component (12) includes an air pump (121) disposed above the support frame (2). The air pump (121) has an air inlet pipe (122) at its input end and an exhaust pipe (123) at its output end. The air pump (121) has two telescopic hoses (124) at its output end. Each of the two telescopic hoses (124) has a diverter pipe (125) at its other end. Each of the two diverter pipes (125) has multiple connecting pipes (126) at its bottom end. The two telescopic hoses (124) are connected to the corresponding diverter pipes (125), and the two diverter pipes (125) are connected to the corresponding multiple connecting pipes (126). The multiple connecting pipes (126) are located above the multiple swing rods (102).

9. The wastewater treatment device based on the MBR membrane separation system according to claim 8, characterized in that: The trigger (13) includes a fixing block (131) disposed at one end of the two limiting plates (105) away from the bearing (101). A first exhaust groove (132) is formed within the fixing block (131), communicating with the connecting pipe (126). A second exhaust groove (133) is formed within the fixing block (131), located below the first exhaust groove (132). A fixing plate (134) is disposed between the first exhaust groove (132) and the second exhaust groove (133). A transition groove (135) is formed on the fixing plate (134), through which the first exhaust groove (132) passes. 135) communicates with the second exhaust groove (133). A rubber plate (136) is slidably arranged in the transition groove (135) and used in conjunction with it. A trigger spring (137) is provided on the top of the rubber plate (136). A fixing frame (138) is provided on the top of the fixing plate (134). The top of the trigger spring (137) is provided on the fixing frame (138). A swing plate (139) is provided at the bottom of the swing rod (102). The swing plate (139) is slidably arranged in the second exhaust groove (133) and is used in conjunction with the rubber plate (136). An air inlet groove (1310) is opened in the swing plate (139).

10. The wastewater treatment device based on the MBR membrane separation system according to claim 9, characterized in that: The discharge component (14) includes a discharge groove (141) opened in the support rod (3), and multiple nozzles (5) are connected to the corresponding discharge groove (141). An auxiliary groove (142) is opened in the swing rod (102), and the discharge groove (141) is connected to the adjacent air intake groove (1310) through the auxiliary groove (142).

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