A vibrating MBR membrane pool mud scraping device

Abstract

The application relates to the technical field of sewage treatment, and discloses a vibrating MBR membrane tank mud scraping device, which comprises an outer frame, a membrane group device is fixedly connected to the inner wall of the outer frame, a right-angle plate is fixedly connected to the top of the outer frame, a moving device is movably connected to the end, away from the outer frame, of the right-angle plate, and a mud scraping mechanism is fixedly connected to the bottom of the outer frame. Through the setting of the bottom assembly, when a scraper one moves forward along with the membrane equipment, part of the mud can be pushed forward; when the scraper one moves backward, the scraper one will be lifted under the action of water flow resistance, the back-pushing effect on the bottom mud is greatly reduced, the overall mud is directed to move to one side of the membrane tank through the design, the mud scraping purpose is efficiently realized, the mud distribution at the bottom of the membrane tank is balanced, the abrasion of the membrane assembly and equipment mechanical parts is reduced, and the service life of the membrane and the operation cycle of the equipment are prolonged.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a vibrating MBR membrane tank sludge scraping device. Background Technology

[0002] In the fields of wastewater treatment and water resource reuse, MBR, also known as membrane bioreactor, is a new type of water treatment technology that combines membrane separation unit and biological treatment unit. Vibrating membrane bioreactor technology is an emerging wastewater treatment technology. V-MBR drives water flow through reciprocating motion to form unstable turbulence, generating corresponding shear stress, thereby washing away the fouling on the membrane surface.

[0003] Patent application CN202411466213.3 discloses a hydraulically flushed MBR vibrating membrane frame, which consists of an outer frame and several inner frames evenly spaced therein. Each inner frame has two symmetrically arranged filter membranes, forming a clean water space between the two filter membranes and the inner frame. Each inner frame can move vertically within the outer frame. The bottom of the outer frame is provided with a drive component to synchronously drive all inner frames to vibrate up and down. Each inner frame has an inlet pipe and an outlet pipe fixed to the outer frame at its top and bottom, respectively. This invention achieves a synergistic effect between the up and down vibration of the inner frames and the surrounding water flow, and works in conjunction with a scraper to promptly separate initially attached dirt. At the same time, gas is drawn into the water through the inlet pipe, so that the resulting gas-liquid mixture is intermittently flushed into the clean water space to perform a secondary flush on the filter membrane, ensuring that the dirt accumulated on the surface and in the pores of the filter membrane is further separated.

[0004] In existing V-MBR technology, uneven sludge distribution in the membrane tank can occur due to factors such as unit movement, unit vacancy, and sludge movement and settling. Although the addition of a sludge removal device has a significant effect in the early stages of V-MBR operation, uneven sludge distribution in the membrane tank will still occur after a period of time. If V-MBR continues to operate when sludge accumulation is severe, it will cause serious wear to the membrane, reduce the membrane's service life, and may even lead to problems such as wear and breakage of mechanical parts of the equipment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a vibratory MBR membrane tank sludge scraping device to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vibrating MBR membrane tank sludge scraping device, comprising an outer frame, a membrane module fixedly connected to the inner wall of the outer frame, a right-angle plate fixedly connected to the top of the outer frame, a moving device movably connected to the end of the right-angle plate away from the outer frame, and a sludge scraping mechanism fixedly connected to the bottom of the outer frame.

[0007] The sludge scraping mechanism includes:

[0008] The base has a first sliding groove on its outer wall, and a connecting component is movably connected to the inner wall of the first sliding groove. The front end of the base has a second sliding groove, and a through hole is formed inside the second sliding groove, which passes through the second sliding groove and extends into the interior of the first sliding groove. The front end of the base has a third sliding groove, and a first sliding column is fixedly connected to the inner wall of the third sliding groove. A front component is movably connected to the outer wall of the first sliding column. The entire device is moved back and forth by a moving device.

[0009] According to the above technical solution, the connecting assembly includes a movable plate 1, the outer wall of the movable plate 1 is movably connected to a sliding groove 1, both ends of the movable plate 1 are movably connected to sliding columns 2, the bottom of the two sliding columns 2 are fixedly connected to connecting rods, a reinforcing plate is fixedly connected between the two connecting rods, and the outer wall of the connecting rod is rotatably connected to a bottom assembly through a bearing, wherein both the front and rear ends of the connecting rod are rotatably connected to the bottom assembly through a bearing.

[0010] According to the above technical solution, a connecting plate is fixedly connected to the bottom of the base, and a blocking column is fixedly connected to the end of the connecting plate away from the base. The blocking column is used to limit the deflection angle of the bottom components. By setting the connecting components, the tilt angles of the two bottom components can be kept consistent, ensuring the coordination of the sludge scraping action. At the same time, the front component can be lifted to a certain extent through structural linkage. This design can effectively avoid the front component from contacting the pushed sludge during the equipment retraction process, thus preventing the backflow phenomenon. This further improves the directionality and efficiency of the sludge scraping operation and ensures the overall effect of cleaning the sludge at the bottom of the membrane tank.

[0011] According to the above technical solution, the inner wall of the slide groove is fixedly connected to an elastic component, the end of the elastic component away from the slide groove is fixedly connected to a movable plate, the side of the movable plate away from the elastic component is fixedly connected to a movable column, the outer wall of the movable column is movably connected to a through hole, the end of the movable column away from the movable plate is fixedly connected to a hollow ring, and the inner wall of the hollow ring is rotatably connected to a connecting plate 2 via a bearing, wherein the movement of the movable plate 1 can change the height of the front component.

[0012] According to the above technical solution, the bottom component includes a rotating plate. The top of the rotating plate is rotatably connected to a connecting rod via a bearing. A connecting column is connected to the bottom of the rotating plate. A scraper is connected to the end of the connecting column away from the rotating plate. A baffle plate is connected to the top of the scraper. The scraper is used to scrape the sludge at the bottom. By setting the bottom component, when the scraper moves forward with the equipment, it can push some of the sludge forward. When moving backward, the scraper will be lifted by the water flow resistance, greatly reducing the back-pushing effect on the sludge at the bottom. This design allows the sludge to move directionally towards one side of the membrane tank, thereby efficiently achieving the purpose of scraping sludge. This plays a role in balancing the distribution of sludge at the bottom of the membrane tank, reducing the wear of the membrane module and mechanical parts of the equipment, and thus extending the service life of the membrane and the operating cycle of the equipment.

[0013] According to the above technical solution, the outer wall of the scraper is provided with an inclined groove, which penetrates the scraper and extends to the rear side of the scraper. A tail fin is fixedly connected to the bottom of the scraper. The inclined groove and the tail fin are used to cause turbulence in the liquid. By setting the bottom component, when the scraper moves forward with the module, the movement speed of some sludge lags behind the scraper. At this time, under the synergistic guiding effect of the tail fin and the inclined groove, a negative pressure zone and vortex will be formed behind the scraper, which will cause the water to flow to the low pressure area, thereby driving some sludge to be disturbed with the water flow. As the scraper continues to move forward, a continuously advancing negative pressure zone will be formed behind it. The sludge tends to move towards this area under the action of negative pressure, providing a continuous driving force for the forward migration of sludge, further improving the efficiency and uniformity of sludge directional migration, strengthening the overall effect of sludge scraping operation, and thus effectively mitigating the adverse effects of sludge accumulation in the membrane tank on the membrane module and mechanical parts of the equipment.

[0014] According to the above technical solution, the front component includes a second movable plate. A slider is fixedly connected to the side of the second movable plate near the base. The inner wall of the slider is connected to a first sliding column. A connecting ring is fixedly connected to the side of the second movable plate near the base. A second connecting column is fixedly connected to the inner wall of the connecting ring. The outer wall of the second connecting column is rotatably connected to the second connecting plate via a bearing. The slider and the first sliding column are used to limit the movement range of the front component. By setting the front component, the sludge at the bottom of the pool can be pre-pushed before the bottom component operates, which plays a role in the preliminary dredging of the sludge. This can effectively prevent the bottom sludge from accumulating too thickly and prevent the scraper from being unable to maintain a vertical state due to the obstruction of the sludge, thereby affecting the stability of the subsequent sludge scraping operation. At the same time, when the sludge scraping mechanism retracts, the second scraper with multiple notches will cause liquid disturbance to form turbulence, which will further promote the sludge to move forward.

[0015] According to the above technical solution, a connecting plate three is fixedly connected to the bottom of the movable plate two, and a scraper two is fixedly connected to the bottom of the connecting plate three. The outer wall of the scraper two has a notch, and the scraper two is used to scrape the silt at the bottom in advance.

[0016] Compared with the prior art, the present invention provides a vibratory MBR membrane tank sludge scraping device, which has the following features:

[0017] Beneficial effects:

[0018] 1. This invention, by setting a bottom component, can push some sludge forward when scraper one moves forward with the equipment; while when moving backward, scraper one will be lifted by the water flow resistance, greatly reducing the back push effect on the sludge at the bottom. This design makes the sludge move in a directional direction to one side of the membrane tank, thereby efficiently achieving the purpose of scraping sludge, playing a role in balancing the distribution of sludge at the bottom of the membrane tank, reducing the wear of membrane components and mechanical parts of the equipment, and thus extending the service life of the membrane and the operating cycle of the equipment.

[0019] 2. By setting a front component, the present invention can pre-push the sludge at the bottom of the pool before the bottom component operates, which plays a role in the initial dredging of the sludge. This can effectively prevent the sludge at the bottom from accumulating too thickly and prevent the scraper from being unable to maintain a vertical state due to the obstruction of the sludge, thereby affecting the stability of the subsequent sludge scraping operation. At the same time, when the sludge scraping mechanism moves backward, the scraper with multiple notches will cause liquid disturbance to form turbulence, which will further promote the sludge to move forward.

[0020] 3. By setting up a connecting component, this invention can ensure that the tilt angles of the two bottom components remain consistent, thus ensuring the coordination of the sludge scraping action. At the same time, the structural linkage can drive the front component to lift to a certain extent. This design can effectively prevent the front component from contacting the pushed sludge during the equipment retraction process, thereby avoiding the phenomenon of backflow. This further improves the directionality and efficiency of the sludge scraping operation and ensures the overall effect of cleaning the sludge at the bottom of the membrane tank.

[0021] 4. By setting a bottom component, when the scraper moves forward with the module, the movement speed of some sludge lags behind the scraper. At this time, under the synergistic guiding effect of the tail fin and the inclined groove, a negative pressure zone and vortex will be formed behind the scraper, which will cause the water to flow towards the low pressure area, thereby driving some sludge to be disturbed with the water flow. As the scraper continues to move forward, a continuously advancing negative pressure zone will be formed behind it. Under the action of negative pressure, the sludge tends to move towards this area, providing a continuous driving force for the forward migration of sludge, further improving the efficiency and uniformity of sludge directional migration, and strengthening the overall effect of sludge scraping operation, thereby effectively mitigating the adverse effects of sludge accumulation in the membrane tank on the membrane module and equipment mechanical parts. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Schematic diagram of the sludge scraping mechanism of the present invention Figure 1 ;

[0025] Figure 3 Schematic diagram of the sludge scraping mechanism of the present invention Figure 2 ;

[0026] Figure 4 This is a cross-sectional view of the sludge scraping mechanism of the present invention;

[0027] Figure 5 Schematic diagram of the connection component of the present invention Figure 1 ;

[0028] Figure 6 Schematic diagram of the connection component of the present invention Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the bottom component of the present invention;

[0030] Figure 8 This is a cross-sectional view of the bottom component of the present invention;

[0031] Figure 9 This is a schematic diagram of the front component of the present invention.

[0032] In the diagram: 1. Outer frame; 101. Membrane module; 102. Right-angle plate; 103. Moving device; 2. Sludge scraping mechanism; 201. Base; 202. Connecting plate one; 203. Blocking column; 204. Slide groove one; 205. Slide groove two; 206. Through hole; 207. Slide groove three; 208. Sliding column one; 21. Connecting assembly; 211. Movable plate one; 212. Sliding column two; 213. Elastic component; 214. Hollow ring; 215. 216. Reinforcing plate; 217. Connecting rod; 218. Movable column; 22. Bottom assembly; 221. Rotating plate; 222. Connecting column one; 223. Baffle plate; 224. Scraper one; 225. Inclined groove; 226. Tail fin; 23. Front assembly; 231. Movable plate two; 232. Slider; 233. Connecting ring; 234. Connecting column two; 235. Connecting plate three; 236. Scraper two; 237. Notch. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Example 1: See Figures 1-6 The present invention provides a technical solution: a vibrating MBR membrane tank sludge scraping device, including an outer frame 1, a membrane module 101 fixedly connected to the inner wall of the outer frame 1, and a sludge scraping mechanism 2 is provided in order to make the sludge at the bottom of the tank uniform. A right-angle plate 102 is fixedly connected to the top of the outer frame 1, and a moving device 103 is movably connected to the end of the right-angle plate 102 away from the outer frame 1. The sludge scraping mechanism 2 is fixedly connected to the bottom of the outer frame 1.

[0037] The sludge scraping mechanism 2 includes: a base 201, with a first groove 204 on the outer wall of the base 201, a connecting component 21 movably connected to the inner wall of the first groove 204, a second groove 205 at the front end of the base 201, a through hole 206 inside the second groove 205 extending into the first groove 204, a third groove 207 at the front end of the base 201, a sliding column 208 fixedly connected to the inner wall of the third groove 207, and a front component 23 movably connected to the outer wall of the sliding column 208. The entire device moves back and forth via a moving device 103. The bottom of the base 201... A connecting plate 202 is fixedly connected, and a blocking column 203 is fixedly connected to the end of the connecting plate 202 away from the base 201. The blocking column 203 is used to limit the deflection angle of the bottom component 22. When the equipment is working, the moving device 103 will drive the entire equipment to move back and forth. During the movement of the equipment, the working state of the bottom component 22 and the front component 23 is changed by the connecting component 21. When moving forward, the front component and the bottom component maintain effective contact with the bottom of the pool to perform sludge scraping. When moving backward, the lifting is used to avoid the backflow of the pushed sludge, thereby achieving efficient cleaning and reducing sludge accumulation, and ensuring the stability of the membrane pool operating environment.

[0038] The connecting assembly 21 includes a movable plate 211, the outer wall of which is movably connected to a slide groove 204. Sliding columns 212 are movably connected to both ends of the movable plate 211. Connecting rods 217 are fixedly connected to the bottoms of the two sliding columns 212. A reinforcing plate 216 is fixedly connected between the two connecting rods 217. A bottom assembly 22 is rotatably connected to the outer wall of the connecting rod 217 via bearings. Both the front and rear ends of the connecting rod 217 are rotatably connected to the bottom assembly 22 via bearings. An elastic assembly 213 is fixedly connected to the inner wall of the slide groove 204. The elastic assembly 213 is located at... One end of the slide chute 204 is fixedly connected to the movable plate 211. A movable column 218 is fixedly connected to the side of the movable plate 211 away from the elastic component 213. The outer wall of the movable column 218 is movably connected to the through hole 206. A hollow ring 214 is fixedly connected to the end of the movable column 218 away from the movable plate 211. A connecting plate 215 is rotatably connected to the inner wall of the hollow ring 214 via a bearing. The movement of the movable plate 211 can change the height of the front component 23. When the equipment moves forward, the bottom component 22 cannot move backward due to the obstruction of the blocking column 203. The device deflects, and the rear elastic component 213 further stabilizes the positions of the bottom component 22 and the front component 23, allowing the front component 23 to pre-treat the sludge at the bottom, and then the bottom component 22 to scrape the sludge at the bottom. When the device moves backward, the bottom component 22 experiences increased water flow resistance, which is transmitted to the movable plate 211 through the connecting rod 217 and the sliding column 212. This pushes the movable plate 211 to compress the elastic component 213 within the sliding groove 204. The displacement of the movable plate 211 drives the hollow ring 214 to move through the movable column 218. The hollow ring 214 and connecting plate 215 drive the front component 23 to rise, preventing the front component 23 from contacting the pushed sludge and causing a pullback. When the equipment switches to moving forward again, the resistance of the bottom component 22 decreases, the elastic component 213 releases its elasticity, and pushes the movable plate 211 to reset in the slide groove 204. This causes the sliding column 212, connecting rod 217 and movable column 218 to return to their initial working positions, allowing the bottom component 22 to restore its sludge scraping angle. The front component 23 also descends to its working height simultaneously, ensuring the continuity and stability of the next round of sludge scraping operations.

[0039] Example 2: Please refer to Figures 7-9Based on Embodiment 1, the present invention provides a technical solution: To enhance the sludge scraping effect of the device, a bottom assembly 22 and a front assembly 23 are provided. The bottom assembly 22 includes a rotating plate 221. The top of the rotating plate 221 is rotatably connected to a connecting rod 217 via a bearing. A connecting column 222 is connected to the bottom of the rotating plate 221. A scraper 224 is connected to the end of the connecting column 222 away from the rotating plate 221. A baffle plate 223 is connected to the top of the scraper 224. The scraper 224 is used to scrape the sludge at the bottom. An inclined groove 225 is provided on the outer wall of the scraper 224. The inclined groove 225 penetrates the scraper 224 and extends to the rear side of the scraper 224. A tail fin 226 is fixedly connected to the bottom of the scraper 224. The inclined groove 225 and the tail fin 226 are used to cause turbulence in the liquid. When the device moves forward, the baffle plate 223... The movement range is blocked by the blocking column 203, and the resistance given to the scraper 224 by the liquid in front allows the blocking plate 223 to adhere to the surface of the blocking column 203, thereby maintaining the effective contact angle between the scraper 224 and the bottom of the pool. At this time, the scraper 224 directly scrapes and pushes the sludge at the bottom, realizing the pushing of the sludge. During this process, the inclined groove 225 on the outer wall of the scraper 224 and the tail fin 226 at the bottom move with the scraper. The inclined groove 225 guides the direction of liquid flow through its inclined structure, and the tail fin 226 enhances the disturbance effect through interaction with the liquid, which plays a role in loosening the sludge at the bottom of the pool. It can also drive some of the lagging sludge to move with the direction of scraper movement through water flow disturbance. When the equipment moves backward, the scraper 224 is subject to increased resistance from the reverse water flow. This resistance causes the scraper 224 to rise, reducing contact with the already pushed sludge, thereby reducing the back push of the sludge.

[0040] The front assembly 23 includes a second movable plate 231. A slider 232 is fixedly connected to the side of the second movable plate 231 near the base 201. The inner wall of the slider 232 is connected to a first sliding post 208. A connecting ring 233 is fixedly connected to the side of the second movable plate 231 near the base 201. A second connecting post 234 is fixedly connected to the inner wall of the connecting ring 233. The outer wall of the second connecting post 234 is rotatably connected to the second connecting plate 215 via a bearing. The slider 232 and the first sliding post 208 are used to limit the movement range of the front assembly 23. A third connecting plate 235 is fixedly connected to the bottom of the second movable plate 231. A second scraper 236 is fixedly connected to the bottom of the third connecting plate 235. The outer wall of the second scraper 236 has a notch 237, wherein the second scraper 236 is used for... Before the equipment moves forward, the connecting component 21, through the connecting plate 215 and the connecting column 234, keeps the movable plate 231 at a suitable working height. At this time, the slider 232 is in a low position along the sliding column 208. The movable plate 231 drives the scraper 236 to directly scrape the bottom silt. The notch 237 on its outer wall can enhance the local water flow disturbance during the pre-scraping process, help loosen the silt, and reduce the difficulty of subsequent silt scraping operations of the bottom component. When the equipment moves backward, the connecting component 21, through the connecting plate 215, drives the movable plate 231 to rise, and the scraper 236 rises synchronously with the movable plate 231, reducing contact with the pushed silt and thus effectively preventing backflow.

[0041] 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.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibratory MBR membrane tank sludge scraping device, comprising an outer frame (1), wherein a membrane module (101) is fixedly connected to the inner wall of the outer frame (1), characterized in that, A right-angle plate (102) is fixedly connected to the top of the outer frame (1), and a moving device (103) is movably connected to the end of the right-angle plate (102) away from the outer frame (1). A mud scraping mechanism (2) is fixedly connected to the bottom of the outer frame (1). The sludge scraping mechanism (2) includes: The base (201) has a sliding groove 1 (204) on its outer wall. A connecting component (21) is movably connected to the inner wall of the sliding groove 1 (204). The base (201) has a sliding groove 2 (205) at its front end. A through hole (206) is provided inside the sliding groove 2 (205). The through hole (206) passes through the sliding groove 2 (205) and extends into the interior of the sliding groove 1 (204). The base (201) has a sliding groove 3 (207) at its front end. A sliding column 1 (208) is fixedly connected to the inner wall of the sliding groove 3 (207). A front component (23) is movably connected to the outer wall of the sliding column 1 (208). The entire device moves back and forth through a moving device (103). The connecting assembly (21) includes a movable plate (211), the outer wall of which is movably connected to a slide groove (204). Sliding columns (212) are movably connected to both ends of the movable plate (211). Connecting rods (217) are fixedly connected to the bottoms of the two sliding columns (212). A reinforcing plate (216) is fixedly connected between the two connecting rods (217). The outer wall of the connecting rod (217) is rotatably connected to a bottom assembly (22) via a bearing. Both ends of the connecting rod (217) are connected via a shaft. A bottom component (22) is rotatably connected to the slide groove (204). An elastic component (213) is fixedly connected to the inner wall of the slide groove (204). The end of the elastic component (213) away from the slide groove (204) is fixedly connected to the movable plate (211). A movable column (218) is fixedly connected to the side of the movable plate (211) away from the elastic component (213). The outer wall of the movable column (218) is movably connected to the through hole (206). A hollow ring (214) is fixedly connected to the end of the movable column (218) away from the movable plate (211). The inner wall of the ring (214) is rotatably connected to the second connecting plate (215) via a bearing, wherein the movement of the first movable plate (211) can change the height of the front assembly (23); the front assembly (23) includes the second movable plate (231), and a slider (232) is fixedly connected to the side of the second movable plate (231) near the base (201), the inner wall of the slider (232) is connected to the first sliding column (208), and a connecting ring (233) is fixedly connected to the side of the second movable plate (231) near the base (201), the inner wall of the connecting ring (233) is... A connecting column two (234) is fixedly connected to the wall. The outer wall of the connecting column two (234) is rotatably connected to the connecting plate two (215) through a bearing. The slider (232) and the sliding column one (208) are used to limit the movement range of the front component (23). The bottom of the movable plate two (231) is fixedly connected to the connecting plate three (235). The bottom of the connecting plate three (235) is fixedly connected to the scraper two (236). The outer wall of the scraper two (236) has a notch (237). The scraper two (236) is used to scrape the silt at the bottom in advance.

2. The vibratory MBR membrane tank sludge scraping device according to claim 1, characterized in that: The bottom of the base (201) is fixedly connected to a connecting plate (202), and a blocking post (203) is fixedly connected to one end of the connecting plate (202) away from the base (201), wherein the blocking post (203) is used to limit the deflection angle of the bottom component (22).

3. The vibratory MBR membrane tank sludge scraping device according to claim 2, characterized in that: The bottom assembly (22) includes a rotating plate (221), the top of which is rotatably connected to a connecting rod (217) via a bearing. A connecting column (222) is connected to the bottom of the rotating plate (221), and a scraper (224) is connected to the end of the connecting column (222) away from the rotating plate (221). A baffle plate (223) is connected to the top of the scraper (224), wherein the scraper (224) is used to scrape the sludge at the bottom.

4. The vibratory MBR membrane tank sludge scraping device according to claim 3, characterized in that: An inclined groove (225) is provided on the outer wall of the scraper (224). The inclined groove (225) passes through the scraper (224) and extends to the rear side of the scraper (224). A tail fin (226) is fixedly connected to the bottom of the scraper (224). The inclined groove (225) and the tail fin (226) are used to cause disturbance of the liquid.

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