A kind of MBBR equipment anti-blocking device, method, system

By setting up an intelligent control system with grabs and sensor groups in the MBBR equipment, the problem of blockage caused by packing accumulation was solved, achieving an automated anti-blockage effect and ensuring smooth liquid flow.

CN118851411BActive Publication Date: 2026-05-12JIANGSU YULONG ENVIRONMENTAL PROTECTION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU YULONG ENVIRONMENTAL PROTECTION
Filing Date
2024-07-03
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In MBBR process units, biological suspension packing material is prone to accumulate at the end of the pool during liquid flow, causing blockage and affecting liquid flow.

Method used

Design an anti-clogging device for MBBR equipment. The device uses a grab bucket structure to intercept the packing material and uses a sensor array to monitor the flow rate in real time. The device intelligently controls the rotation of the grab bucket to release the packing material and prevents accumulation.

Benefits of technology

It achieves automated, non-manual prevention of packing buildup, ensures smooth liquid flow, and improves equipment operating efficiency and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of MBBR equipment anti-blocking device, method, system, including multiple blocking devices, the blocking device includes two grab bucket, pivot, the wall of the grab bucket is filter screen structure for water, the grab bucket is equipped with filler inlet and outlet for storing or releasing filler;The blocking device is further provided with sensor group, further including processing center, the processing center is located outside the water pool, for receiving the effluent data of the sensor group, when the effluent data meets certain conditions, the processing center controls the drive device action, to drive the pivot rotation 180 °, so that the filler inlet and outlet of one of the grab bucket changes from downward direction to upward direction, to release the filler stored inside the grab bucket along with water flow.The application is equipped with grab bucket, can intercept filler halfway, prevent accumulation at the end of liquid passage, intelligent control grab bucket, no need to consider intervention, good degree of automation.
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Description

Technical Field

[0001] This invention relates to MBBR equipment, specifically to an MBBR equipment anti-clogging device, method, and system. Background Technology

[0002] In the MBBR process unit, after the biological suspension packing mixes with the liquid, it flows to the end of the pool with the liquid, causing the packing to accumulate at the end. If there is too little packing at the front, the blockage formed at the end will affect the flow of liquid. Summary of the Invention

[0003] To address the shortcomings of the prior art, this invention provides an anti-clogging device, method, and system for MBBR equipment. This invention features a grab bucket that can intercept packing material midway through the process, preventing it from accumulating at the end and affecting liquid flow. The grab bucket is intelligently controlled, requiring no human intervention and exhibiting a high degree of automation.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution: an anti-clogging device for MBBR equipment, comprising a water tank, the water tank being divided into a mixing tank, an MBBR tank, a barrier tank, and an outlet tank; the barrier tank is provided with a plurality of barrier devices, the barrier devices being disposed on two side walls of the barrier tank and arranged in an alternating manner.

[0005] The barrier device includes two grabs and a rotating shaft. The two grabs are both connected to the rotating shaft and are symmetrical about the center of the rotating shaft. The rotating shaft is installed on the side wall of the barrier pool and connected to a driving device. The walls of the grabs are all filter screen structures for water passage, and the grabs are provided with filler inlets and outlets for storing or releasing filler.

[0006] The blocking device is also equipped with a sensor group, which is located at the water outlet of the grab bucket and is used to detect the water outlet data of the grab bucket.

[0007] It also includes a processing center located outside the water tank, which receives the water output data from the sensor group. When the water output data meets certain conditions, the processing center controls the drive device to rotate the shaft 180°, so that the packing inlet / outlet of one of the grab buckets changes from a downward direction to an upward direction, so as to release the packing stored inside the grab bucket with the water flow.

[0008] Furthermore, the grab includes a peripheral wall, a first end wall and a second end wall at both ends of the peripheral wall, and a bottom wall on one side of the peripheral wall; the peripheral wall, the first end wall, the second end wall, and the bottom wall form a partially cylindrical structure, the bottom wall has one radial surface and the other radial surface is open as the inlet and outlet of the packing; the bottom wall is fixedly connected to the rotating shaft; the peripheral wall, the first end wall, the second end wall, and the bottom wall are all filter screen structures, and the size of the filter holes is smaller than the size of the packing.

[0009] Furthermore, when the grab is in working condition, its rounded corners are divided into a1 and a2 by a horizontal line, wherein a1 > a2, a1 is located on the upper side, and a2 is located on the lower side.

[0010] Furthermore, the barrier device also includes a fixing frame, which has a quadrilateral structure and includes two fixing plates and two auxiliary plates. One of the fixing plates is used to fix and connect to the side wall of the barrier pool, and the two auxiliary plates are fixed to the two opposite side walls of the barrier pool. The grab bucket is located inside the fixing frame, and both ends of the rotating shaft are fixed to the two auxiliary plates. One end of the rotating shaft passes through the auxiliary plate and the side wall of the barrier pool and is connected to the drive device.

[0011] Furthermore, the sensor group includes multiple sensors, which are fixed at the connection between the peripheral wall and the bottom wall; each of the blocking devices has two sets of sensors for detecting the water output data of each blocking device, and the processing center controls each blocking device individually based on the water output data.

[0012] Furthermore, the water tank is equipped with vertical and horizontal partitions, which intersect in a cross shape. The top of the vertical partition is fixed to the top of the water tank, and the horizontal partition is fixed to the side wall of the water tank, thus separating the mixing tank, the MBBR tank, the barrier tank, and the effluent tank. The mixing tank is provided with an inlet, and the horizontal partition has gaps to allow water and filler to flow from the mixing tank to the MBBR tank. The bottom of the vertical partition has gaps to allow water and filler to flow from the MBBR tank to the barrier tank. The effluent tank is provided with an outlet.

[0013] Furthermore, the barrier pool is equipped with a circulation pump, which is connected to a pipeline. The pipeline is laid in the outlet pool and extends into the mixing pool, and a check valve is installed in the mixing pool. The circulation pump is fixed to the transverse partition plate.

[0014] A method for preventing blockage in an MBBR device includes the following steps: dividing the sensor group into a working state and a waiting state, wherein the working state refers to the corresponding grab bucket storing packing material, and the waiting state refers to the corresponding grab bucket releasing packing material or having already released packing material.

[0015] Real-time reception of water discharge data from sensor arrays, including flow rate;

[0016] Set the water output data of the sensor group in the waiting state to 0, and reduce the noise of the water output data of the sensor group in the working state to obtain effective water output data.

[0017] The degree of blockage is calculated based on the effective effluent data. When the degree of blockage is higher than the threshold, a release signal is sent to the drive device. The release signal is used to drive the grab bucket to rotate 180° to release the stored packing material.

[0018] An MBBR equipment anti-clogging system includes,

[0019] The receiving module is used to receive water output data from the sensor group in real time, including flow rate;

[0020] The processing module is used to set the water output data of the sensor group in the waiting state to 0, and to reduce the noise of the water output data of the sensor group in the working state to obtain effective water output data.

[0021] The calculation and judgment module is used to calculate the degree of blockage based on the effective effluent data. When the degree of blockage is higher than the threshold, a release signal is sent to the drive device. The release signal is used to drive the grab bucket to rotate 180° to release the stored packing.

[0022] In summary, the present invention has achieved the following technical effects:

[0023] This invention features multiple grabs in a water tank. Two grabs work together to continuously capture packing material, preventing it from accumulating at the end. The grabs employ a filter screen structure that does not impede the flow of liquid but only blocks the packing material.

[0024] The present invention uses sensors to intelligently control the movement of the grab bucket, eliminating the need for manual intervention and making it quick, convenient, and effective. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the usage status of an MBBR equipment anti-clogging device provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the barrier device;

[0027] Figure 3 This is the front view of the grab bucket;

[0028] Figure 4 yes Figure 3 A simplified diagram;

[0029] Figure 5 yes Figure 4 The state after rotating 180°. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] 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.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] Example:

[0037] Figure 1This is a schematic diagram of an anti-clogging device for an MBBR (Multi-Metal Block Ride) system in use. It includes a water tank 1, which is divided into a mixing tank 101, an MBBR tank 102, a barrier tank 103, and an outlet tank 104. The water tank 1 is equipped with vertical partitions 105 and horizontal partitions 106, which intersect at an angle. The top of the vertical partitions 105 is fixed to the top of the water tank 1, and the horizontal partitions 106 are fixed to the side walls of the water tank 1. The mixing tank 101, the MBBR tank 102, the barrier tank 103, and the effluent tank 104 are separated. The mixing tank 101 is provided with an inlet 107. The horizontal partition plate 106 has gaps to allow water and filler to flow from the mixing tank 101 to the MBBR tank 102. The bottom of the vertical partition plate 105 has gaps to allow water and filler to flow from the MBBR tank 102 to the barrier tank 103. The effluent tank 104 is provided with an outlet 108.

[0038] The barrier pool 103 is equipped with a circulation pump 3, which is connected to a pipe 4. The pipe 4 is laid in the outlet pool 104 and extends into the mixing pool 101, and a check valve is installed in the mixing pool 101. The circulation pump 3 is fixed to the transverse partition plate 106. The pipe 4 has a filter screen structure.

[0039] The barrier pool 103 is provided with a plurality of barrier devices 2, which are arranged on two side walls of the barrier pool 103 and are staggered.

[0040] Figure 2 This is a schematic diagram of the barrier device 2, which includes two grab buckets 24 and a rotating shaft 23. The two grab buckets 24 are both connected to the rotating shaft 23 and are symmetrical about the center of the rotating shaft 23. The rotating shaft 23 is installed on the side wall of the barrier pool 103 and is connected to a driving device. The walls of the grab buckets 24 are all filter screen structures for water passage, and the grab buckets 24 have filler inlets and outlets 245 for storing or releasing filler.

[0041] The two grabs can be placed vertically or horizontally in the pool; the usage method is the same. This embodiment uses the horizontal placement as an example:

[0042] This invention features two grab buckets arranged symmetrically in a central configuration. One bucket stores packing material, while the other releases it, maximizing the capture of packing material and preventing excessive accumulation at the top of the barrier pool. The drive unit is a motor mounted on the outer wall of the pool. A rotating shaft 23 passes through the side wall of the pool and is sealed with a leak-proof ring before connecting to the motor. The motor drives the shaft to rotate 180°. When one grab bucket meets certain conditions, the motor activates, controlling the entire barrier device 2 to rotate 180°. This causes the inlet / outlet of the full grab bucket to face upwards, releasing the packing material with the water flow and placing it in a waiting state. Meanwhile, the inlet / outlet of the empty grab bucket faces downwards, putting it into operation. This invention allows the two grab buckets to work cyclically, ensuring one grab bucket is constantly in operation while also allowing for packing material release. It is convenient to use and has high capture efficiency.

[0043] The grab bucket 24 includes a peripheral wall 241, a first end wall 242 and a second end wall 243 located at both ends of the peripheral wall 241, and a bottom wall 244 located on one side of the peripheral wall 241. The peripheral wall 241, the first end wall 242, the second end wall 243, and the bottom wall 244 form a quarter-cylindrical structure. The bottom wall 244 has one radial surface and the other radial surface is empty, serving as the filler inlet / outlet 245. The bottom wall 244 is fixedly connected to the rotating shaft 23. The peripheral wall 241, the first end wall 242, the second end wall 243, and the bottom wall 244 are all filter screen structures, and the size of the filter holes is smaller than the size of the filler.

[0044] The length of the grab bucket 24 is slightly less than the width of the pool. The grab bucket is long enough to capture a wide area of ​​packing material, preventing its accumulation. The grab bucket uses a filter structure, allowing water to pass through while blocking the packing material, causing it to accumulate inside the grab bucket awaiting release. One radius of the cylindrical structure serves as the packing material inlet / outlet 245, forming the grab bucket structure for easy capture of the packing material.

[0045] The barrier devices 2 are arranged at intervals and staggered. A small portion of the fill material reaches the top of the barrier pool through the gaps between the barrier devices, while most of the fill material is captured by the grabs on the left and right sides.

[0046] Figure 3 This is the front view of the grab bucket. When the grab bucket is in working condition, its rounded corners are divided into a1 and a2 by the horizontal line, where a1 > a2, a1 is located on the upper side, and a2 is located on the lower side. The larger angle of a1 results in a longer radius at the 245° position of the packing inlet and outlet, making the opening larger, which facilitates better capture of the packing and also allows space for water flow.

[0047] like Figure 2As shown, the blocking device 2 further includes a fixing frame 21, which has a quadrilateral structure and includes two fixing plates 211 and two auxiliary plates 212. One of the fixing plates 211 is used to fix and connect to the side wall of the blocking pool 103, which can be fixed with bolts and sealed with a gasket. The two auxiliary plates 212 are fixed to two opposite side walls of the blocking pool 103, which can also be fixed with bolts and sealed with gaskets. The grab bucket 24 is located inside the fixing frame 21, and both ends of the rotating shaft 23 are fixed to the two auxiliary plates 212. One end of the rotating shaft 23 passes through the auxiliary plate 212 and the side wall of the blocking pool 103 and connects to the driving device, and is sealed with a gasket. The rotating shaft 23 is rotatably connected to the auxiliary plates. The present invention provides a fixing frame for installing the grab bucket, which facilitates installation and control.

[0048] Figure 4 yes Figure 3 A simplified schematic diagram is shown, with dashed lines representing the packing inlet / outlet 245 to clearly indicate the working status. The packing moves upwards with the water flow; some packing flows past the barrier device (not shown), while the rest is blocked by the grab bucket. The packing then enters the packing inlet / outlet 245 with the water flow, thus entering the grab bucket. Figure 3 The right grab bucket is in working condition, while the left grab bucket is in standby condition. Packing material enters the right grab bucket and is stored inside. Meanwhile, the outer walls of the grab buckets are made of filter mesh to allow water to flow smoothly. Once the packing material inside the right grab bucket meets the release conditions... Figure 5 As shown, Figure 5 yes Figure 4 After rotating 180°, the blocking device rotates 180° clockwise, moving the right grab bucket to the left, and ensuring the packing inlet / outlet (245°) faces upward to release the packing. Simultaneously, the new right grab bucket continues to capture the packing. Clockwise rotation prevents the packing from escaping during rotation. The two grab buckets cycle to capture the packing, resulting in high efficiency, short intervals, good capture effect, and good anti-clogging effect.

[0049] The blocking device 2 is also equipped with a sensor group, which is located at the water outlet of the grab bucket 24 to detect the water outlet data of the grab bucket 24; it also includes a processing center, which is located outside the water tank 1 to receive the water outlet data of the sensor group. When the water outlet data meets certain conditions, the processing center controls the driving device to drive the rotating shaft 23 to rotate 180°, so that the packing inlet 245 of one of the grab buckets 24 changes from a downward direction to an upward direction, so as to release the packing stored inside the grab bucket 24 with the water flow.

[0050] The sensor group includes multiple sensors, which are fixed at the connection between the peripheral wall 241 and the bottom wall 244; each of the blocking devices 2 has two sets of sensors for detecting the water output data of each blocking device 2, and the processing center controls each blocking device 2 individually based on the water output data.

[0051] This invention utilizes sensors to detect water output data, such as flow velocity and flow rate. This embodiment uses flow velocity data to indicate the flow velocity at different locations at the outlet. When a location is completely blocked by packing material, the water flow velocity is extremely slow; when partially blocked, the flow velocity is higher; and when there is no packing material, the flow velocity is the highest. The flow velocity is used to determine whether the outlet is blocked and the degree of blockage, thereby controlling the release of packing material from the grab bucket.

[0052] In this embodiment, there are N sensors, as illustrated in the diagram. These N sensors are distributed at the water outlet, each detecting the flow velocity at that location to indicate any blockage.

[0053] A blocking device includes 2N sensors. A processing center receives flow rate data from all 2N sensors, ignoring data from sensors in a waiting state and processing only the data from the N sensors in an active state. The processing center performs the following operations: setting the effluent data from the waiting sensor group to 0; reducing noise in the effluent data from the active sensor group to obtain valid effluent data; noise reduction refers to ignoring the highest and lowest flow rate data and using the flow rate data from the remaining sensors as valid effluent data; determining the weight of the sensor corresponding to the valid effluent data; and calculating the degree of blockage based on the valid effluent data. The calculation steps are: weighting the valid effluent data and taking the average value, using the average value as the degree of blockage, specifically using the formula: F = (I1 * W1 + I2 * W2 + I3) / (I2 * W2 + I3) / (I2 * W2 + I3) / (I2 * W2 + I2 * W2) / (I ... *W3+...+In*Wn) / n, where n={1,2,3,...N-2}, N is the number of sensors installed on a grab bucket, F is the degree of blockage, and W is the weight of each sensor; wherein, determining the weight of the sensor corresponding to the effective effluent data means: according to the actual flow direction of the packing, the positions that are easy to accumulate are divided into easy accumulation areas, the positions that are not easy to accumulate are divided into difficult accumulation areas, and the remaining positions are divided into medium accumulation areas. The weight of the sensor in the easy accumulation area is set to 3, the weight of the sensor in the difficult accumulation area is set to 1, and the weight of the sensor in the medium accumulation area is set to 2; when the degree of blockage is higher than the threshold, a release signal is sent to the drive device, wherein the release signal is used to drive the grab bucket 24 to rotate 180° to release the stored packing;

[0054] The processing center is also used to perform the following steps: when there are at least two highest flow rate data points, one of the at least two flow rate data points is taken as the highest flow rate data point; when there are at least two lowest flow rate data points, one of the at least two flow rate data points is taken as the lowest flow rate data point.

[0055] A method for preventing blockage in an MBBR device includes the following steps: dividing the sensor group into a working state and a waiting state, wherein the working state refers to the corresponding grab bucket 24 storing packing material, and the waiting state refers to the corresponding grab bucket 24 releasing packing material or having already released it.

[0056] Real-time reception of water discharge data from sensor arrays, including flow rate;

[0057] Set the water output data of the sensor group in the waiting state to 0, and reduce the noise of the water output data of the sensor group in the working state to obtain effective water output data.

[0058] The degree of blockage is calculated based on the effective water output data. When the degree of blockage is higher than the threshold, a release signal is sent to the drive device. The release signal is used to drive the grab bucket 24 to rotate 180° to release the stored packing.

[0059] Noise reduction refers to ignoring the highest and lowest flow velocity data and using the flow velocity data from the remaining sensors as valid effluent data.

[0060] Before calculating the degree of blockage based on the effective effluent data, the method further includes: determining the weight of the sensor corresponding to the effective effluent data; specifically: based on the actual flow direction of the packing material, the location that is easy to accumulate is divided into an easy accumulation area, the location that is not easy to accumulate is divided into a non-accumulation area, and the remaining locations are divided into a medium accumulation area. The weight of the sensor in the easy accumulation area is set to 3, the weight of the sensor in the non-accumulation area is set to 1, and the weight of the sensor in the medium accumulation area is set to 2.

[0061] The calculation of the blockage degree value based on the effective water output data includes: taking the average value after weighting the effective water output data, and using the average value as the blockage degree value. The specific formula is: F = (I1 * W1 + I2 * W2 + I3 * W3 + ... + In * Wn) / n, where n = {1, 2, 3, ... N - 2}, N is the number of sensors installed on a grab bucket, F is the blockage degree value, and W is the weight of each sensor.

[0062] It also includes: when there are at least two highest flow rate data points, one of the at least two flow rate data points shall be taken as the highest flow rate data point; when there are at least two lowest flow rate data points, one of the at least two flow rate data points shall be taken as the lowest flow rate data point.

[0063] An MBBR equipment anti-clogging system includes,

[0064] The receiving module is used to receive water output data from the sensor group in real time, including flow rate;

[0065] The processing module is used to set the water output data of the sensor group in the waiting state to 0, and to reduce the noise of the water output data of the sensor group in the working state to obtain effective water output data.

[0066] The calculation and judgment module is used to calculate the degree of blockage based on the effective effluent data. When the degree of blockage is higher than the threshold, a release signal is sent to the drive device. The release signal is used to drive the grab bucket 24 to rotate 180° to release the stored packing.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. An anti-clogging device for an MBBR (Medium-to-Medium-Oxygen Blender) equipment, comprising a water tank (1), said water tank (1) being divided into a mixing tank (101), an MBBR tank (102), a barrier tank (103), and an outlet tank (104); characterized in that: The barrier pool (103) is provided with a plurality of barrier devices (2), which are arranged on the two side walls of the barrier pool (103) and are staggered. The barrier device (2) includes two grabs (24) and a rotating shaft (23). The two grabs (24) are both connected to the rotating shaft (23) and are symmetrical about the center of the rotating shaft (23). The rotating shaft (23) is installed on the side wall of the barrier pool (103) and connected to a driving device. The walls of the grabs (24) are all filter screen structures for water passage. The grabs (24) are provided with filler inlet and outlet (245) for storing or releasing filler. The blocking device (2) is also equipped with a sensor group, which is located at the water outlet of the grab bucket (24) and is used to detect the water outlet data of the grab bucket (24); It also includes a processing center located outside the water tank (1) for receiving the water output data of the sensor group. When the water output data meets certain conditions, the processing center controls the driving device to rotate the shaft (23) by 180°, so that the filler inlet (245) of one of the grab buckets (24) changes from a downward direction to an upward direction, so as to release the filler stored inside the grab bucket (24) with the water flow.

2. The MBBR equipment anti-clogging device according to claim 1, characterized in that: The grab bucket (24) includes a peripheral wall (241), a first end wall (242) and a second end wall (243) located at both ends of the peripheral wall (241), and a bottom wall (244) located on one side of the peripheral wall (241). The peripheral wall (241), the first end wall (242), the second end wall (243), and the bottom wall (244) form a cylindrical structure. The bottom wall (244) has one radial surface and the other radial surface is empty as the inlet / outlet (245) of the packing. The bottom wall (244) is fixedly connected to the rotating shaft (23). The peripheral wall (241), the first end wall (242), the second end wall (243), and the bottom wall (244) are all filter structures, and the size of the filter holes is smaller than the size of the packing.

3. The MBBR equipment anti-clogging device according to claim 2, characterized in that: When the grab (24) is in working condition, its rounded corners are divided into a1 and a2 by the horizontal line, where a1>a2, a1 is located on the upper side and a2 is located on the lower side.

4. The MBBR equipment anti-clogging device according to claim 2, characterized in that: The blocking device (2) also includes a fixing frame (21), which has a quadrilateral structure and includes two fixing plates (211) and two auxiliary plates (212). One of the fixing plates (211) is used to fix the side wall of the blocking pool (103), and the two auxiliary plates (212) are fixed to the two opposite side walls of the blocking pool (103). The grab bucket (24) is located inside the fixing frame (21), and the two ends of the rotating shaft (23) are fixed to the two auxiliary plates (212). One end of the rotating shaft (23) passes through the auxiliary plate (212) and the side wall of the blocking pool (103) and is connected to the driving device.

5. The MBBR equipment anti-clogging device according to claim 2, characterized in that: The sensor group includes multiple sensors, which are fixed at the connection between the peripheral wall (241) and the bottom wall (244); each of the blocking devices (2) has two sets of sensor groups for detecting the water output data of each blocking device (2), and the processing center controls each blocking device (2) individually based on the water output data.

6. The MBBR equipment anti-clogging device according to claim 1, characterized in that: The water tank (1) is provided with a vertical partition plate (105) and a horizontal partition plate (106). The vertical partition plate (105) and the horizontal partition plate (106) are arranged in a cross shape. The top of the vertical partition plate (105) is fixed to the top of the water tank (1). The horizontal partition plate (106) is fixed to the side wall of the water tank (1) to separate the mixing tank (101), the MBBR tank (102), the barrier tank (103), and the outlet tank (104). The mixing tank (101) is provided with an inlet (107). The horizontal partition plate (106) has a gap so that water and filler can flow from the mixing tank (101) to the MBBR tank (102). The bottom of the vertical partition plate (105) has a gap so that water and filler can flow from the MBBR tank (102) to the barrier tank (103). The outlet tank (104) is provided with an outlet (108).

7. The MBBR equipment anti-clogging device according to claim 6, characterized in that: The barrier pool (103) is equipped with a circulation pump (3), the circulation pump (3) is equipped with a pipe (4), the pipe (4) is laid in the outlet pool (104) and passes through the mixing pool (101), and a check valve is provided in the mixing pool (101); the circulation pump (3) is fixed to the transverse partition plate (106).

8. A method for preventing blockage in MBBR equipment, characterized in that: The MBBR equipment anti-clogging device as described in claim 1 includes the following steps: dividing the sensor group into a working state and a waiting state, wherein the working state refers to the corresponding grab bucket (24) storing packing material, and the waiting state refers to the corresponding grab bucket (24) releasing packing material or having already released it. Real-time reception of water discharge data from sensor arrays, including flow rate; The water output data of the sensor group in the waiting state is set to 0, and the water output data of the sensor group in the working state is denoised to obtain valid water output data; denoising means: ignoring the highest and lowest flow rate data, and using the flow rate data of the other sensors as valid water output data. The degree of blockage is calculated based on the effective water output data. When the degree of blockage is higher than the threshold, a release signal is sent to the drive device. The release signal is used to drive the grab bucket (24) to rotate 180° to release the stored packing. The weights of the sensors corresponding to the valid effluent data are determined, and the degree of blockage is calculated based on the valid effluent data. The calculation steps are as follows: the valid effluent data are weighted separately and then averaged. The average value is used as the degree of blockage. The specific formula is: F = (I1×W1 + I2×W2 + I3×W3 + ... + In×Wn) / n, where n = {1, 2, 3, ... N-2}, N is the number of sensors installed on a grab bucket, F is the degree of blockage, and W is the weight of each sensor. The determination of the weights of the sensors corresponding to the valid effluent data refers to: according to the actual flow direction of the packing, the positions that are easy to accumulate are divided into easy accumulation areas, the positions that are not easy to accumulate are divided into difficult accumulation areas, and the remaining positions are divided into medium accumulation areas. The weight of the sensor in the easy accumulation area is set to 3, the weight of the sensor in the difficult accumulation area is set to 1, and the weight of the sensor in the medium accumulation area is set to 2.

9. An anti-clogging system for MBBR equipment, characterized in that: The method for preventing blockage of an MBBR device as described in claim 8 includes, The receiving module is used to receive water output data from the sensor group in real time, including flow rate; The processing module is used to set the water output data of the sensor group in the waiting state to 0, and to reduce the noise of the water output data of the sensor group in the working state to obtain effective water output data. The calculation and judgment module is used to calculate the degree of blockage based on the effective effluent data. When the degree of blockage is higher than the threshold, a release signal is sent to the drive device. The release signal is used to drive the grab bucket (24) to rotate 180° to release the stored packing.