Wastewater treatment device for preventing MBBR (moving bed biofilm reactor) filler accumulation

Abstract

The invention relates to a wastewater treatment device for preventing MBBR filler accumulation, and relates to the technical field of wastewater treatment.The wastewater treatment device comprises a pool body, the outer wall of the pool body is fixedly connected with a motor, the pool body is provided with a stirring assembly, a gas conveying assembly, a filtering assembly and a cooling assembly; the gas transmission assembly comprises a third chain wheel fixedly connected with the outer wall of the motor rotating shaft; the stirring assembly and the gas transmission assembly are matched for use, MBBR filler in the tank body can be stirred so as to avoid accumulation of the MBBR filler, and through cooperation and linkage of the stirring assembly and the gas transmission assembly, the stirring speed of the stirring assembly is matched with the efficiency of the gas transmission assembly for feeding gas into the tank body, so that the stirring efficiency of the MBBR filler is improved. Therefore, dissolved oxygen can be supplied according to needs, insufficient or excessive aeration is avoided, meanwhile, the fluidization state of the filler is optimized, accumulation and excessive falling of a biological membrane are prevented, and balance of high efficiency, energy conservation and stable operation is achieved during use.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a wastewater treatment device capable of preventing MBBR filler accumulation. Background Art

[0002] MBBR filler is the core microbial carrier in the moving bed biofilm reactor. It can be well suspended in water through stirring or aeration, providing a three-dimensional space for microorganisms to attach and grow, forming an efficient biofilm community, and making the biofilm community composition evenly distributed for sewage treatment.

[0003] However, in actual use, in existing sewage treatment devices, MBBR fillers are prone to gradual accumulation or local aggregation during long-term use due to insufficient water flow dynamics, resulting in uneven distribution of MBBR fillers and reduced effective surface area of ​​the fillers. As a result, the microbial communities attached to the MBBR fillers cannot effectively contact the wastewater, causing a decrease in biofilm activity and affecting the wastewater treatment effect. At the same time, traditional treatment devices mostly use a single aeration or stirring method, which has disadvantages such as high energy consumption and inflexible regulation. It is unable to accurately match the dissolved oxygen demand under different water quality conditions, and is prone to insufficient or excessive aeration, resulting in low treatment efficiency and increased operating costs.

[0004] In order to solve the above problems, the present application proposes a wastewater treatment device that prevents MBBR filler accumulation. Summary of the Invention

[0005] (1) Technical problems solved In view of the shortcomings of the prior art, the present invention provides a wastewater treatment device that prevents MBBR filler accumulation, thereby solving the problem of MBBR filler accumulation during MBBR wastewater treatment.

[0006] (2) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A wastewater treatment device for preventing MBBR filler accumulation, comprising a tank body, an outer wall of the tank body being fixedly connected to a motor, a stirring assembly being provided on the tank body, a gas transmission assembly being provided on the tank body, a filtering assembly being provided on the tank body, and a cooling assembly being provided on the tank body; The air delivery assembly includes a third sprocket fixedly connected to the outer wall of the motor shaft, the top of the pool body is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a fourth sprocket, the outer wall of the fourth sprocket is transmission-connected to the second chain, the outer wall of the rotating rod is fixedly connected to the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected to a round rod, the end of the round rod away from the second gear is fixedly connected to the third gear, the third gear is meshed with the fourth gear, the bottom of the fourth gear is fixedly connected to an air delivery piece, and the outer wall of the air delivery piece is provided with a air delivery barrel.

[0007] Preferably, the stirring assembly includes a first sprocket fixedly connected to the outer wall of the motor shaft, the outer wall of the pool body is rotatably connected to the second sprocket, the outer wall of the second sprocket is transmission-connected to the first chain, the first chain is transmission-connected to the first sprocket, the interior of the pool body is rotatably connected to the stirring member, and one end of the stirring member is fixedly connected to the second sprocket.

[0008] By adopting the above technical solution and setting up a stirring component, the MBBR filler inside the tank body can be circulated to avoid the accumulation of MBBR filler. At the same time, the turbulence formed by stirring can accelerate the diffusion of pollutants in the wastewater to the surface of the biofilm, and at the same time, the microbial metabolites are taken away in time. The evenly flowing filler can reduce the frequency of mutual collision and prevent the biofilm from falling off on a large scale due to severe friction.

[0009] Preferably, the filter assembly includes a filter element arranged on the side wall of the pool body, the side wall of the pool body is movably connected to a protective plate, the side wall of the protective plate is fixedly connected to an ear plate, the ear plate is movably connected to a bolt, the bolt is threadedly connected to the side wall of the pool body, and the side of the protective plate close to the filter element is fixedly connected to an extrusion block, and one side of the extrusion block is in contact with one side of the filter element.

[0010] By adopting the above technical solution and setting up a filter assembly, the filter element can be quickly replaced. The filter element can block the MBBR filler to prevent the MBBR filler from flowing out of the pool body with the flow of sewage, thereby avoiding the loss of the MBBR filler. At the same time, the filter element can be quickly replaced through the filter assembly, thereby avoiding the long-term use of the filter element affecting the blocking of the MBBR filler.

[0011] Preferably, the cooling assembly includes a water pipe fixedly connected to the bottom of the pool body, a connecting pipe fixedly connected to the water pipe, a cooling pipe fixedly connected to the top of the connecting pipe, one end of the cooling pipe located inside the pool body is inside the gas barrel, and a sealing valve is provided on the water pipe.

[0012] By adopting the above technical solution and setting up a cooling component, the cooling of the interior of the tank body is achieved. When the microorganisms inside the MBBR filler biodegrade the sewage, the sewage inside the tank body may be heated up. At this time, the sewage inside the tank body can be cooled down by the cooling component, thereby avoiding the impact of the temperature increase on the microorganisms inside the MBBR filler, thereby avoiding affecting the use of the microorganisms inside the MBBR filler.

[0013] Preferably, the outer wall of the pool body is fixedly connected to a first protective shell, which is rotatably connected to the rotating shaft of the motor. The outer wall of the pool body is fixedly connected to a second protective shell, which is rotatably connected to the rotating shaft of the motor.

[0014] By adopting the above technical solution and setting up the first protective shell and the second protective shell, some components of the stirring assembly and the gas transmission assembly are protected, thereby preventing some components of the stirring assembly and the gas transmission assembly from being affected by external factors and causing damage and jamming.

[0015] Preferably, the top of the pool body is fixedly connected to a support plate, the support plate is fixedly connected to a first support shell, the side wall of the first support shell is rotatably connected to the round rod, the gas transmission part is rotatably connected to the bottom of the first support shell, the outer wall of the round rod is rotatably connected to a second support shell, and the second support shell is rotatably connected to the rotating rod.

[0016] By adopting the above technical solution, by arranging the support plate, the first support shell and the second support shell, support is achieved for some components of the stirring assembly and the gas transmission assembly, thereby avoiding the situation where the components inside the stirring assembly and the gas transmission assembly are detached when they are used, thereby avoiding affecting the driving of the stirring assembly and the gas transmission assembly.

[0017] Preferably, a partition plate is provided on the inner wall of the pool body, and the partition plate is fixedly connected to the outer wall of the gas delivery barrel.

[0018] By adopting the above technical solution and setting a partition plate, the sewage can be separated, thereby making the circulation of sewage more convenient.

[0019] Preferably, a sealing frame is fixedly connected to a side of the filter element close to the pool body, a sealing gasket is detachably connected to the pool body, and one side of the sealing frame is in contact with one side of the sealing gasket.

[0020] By adopting the above technical solution, by setting a sealing frame and a sealing gasket, the sealing of the joint between the protective plate and the pool body is achieved, thereby preventing sewage from flowing out to the outside through the joint between the protective plate and the pool body, thereby avoiding affecting the sewage cleaning effect.

[0021] (3) Beneficial effects In summary, this application includes at least one of the following beneficial technical effects: 1. Through the coordinated use of the stirring component and the gas supply component, the MBBR filler inside the tank body can be stirred to avoid the accumulation of MBBR filler. Through the coordination and linkage of the stirring component and the gas supply component, the stirring rate of the stirring component is matched with the efficiency of the gas supply component in supplying air into the tank body, so that dissolved oxygen can be supplied on demand to avoid insufficient or excessive aeration. At the same time, the fluidization state of the filler is optimized to prevent accumulation and excessive shedding of the biofilm, and a more efficient, energy-saving and stable operation balance is achieved during use.

[0022] 2. By setting up a filter assembly, the filter element can be quickly replaced. The filter element can block the MBBR filler to prevent the MBBR filler from flowing out of the pool body with the flow of sewage, thereby avoiding the loss of MBBR filler. At the same time, the filter element can be quickly replaced through the filter assembly, thereby avoiding the long-term use of the filter element affecting the blocking of the MBBR filler.

[0023] 3. By setting up a cooling component, the inside of the tank body can be cooled. When the microorganisms inside the MBBR filler biodegrade the sewage, the sewage inside the tank body may be heated up. At this time, the sewage inside the tank body can be cooled down by the cooling component to avoid the impact of the temperature increase on the microorganisms inside the MBBR filler, thereby avoiding affecting the use of the microorganisms inside the MBBR filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the third sprocket and its related parts of the present invention; Figure 3 This is a schematic structural diagram of the second gear and its related parts of the present invention; Figure 4 This is a schematic structural diagram of the gas transmission component and its related parts of the present invention; Figure 5 It is a schematic structural diagram of the first sprocket and its related parts of the present invention; Figure 6 This is a schematic structural diagram of the filter element and its related parts of the present invention; Figure 7 This is a schematic structural diagram of the cooling pipe and its related parts of the present invention.

[0025] Description of reference numerals: 1. Pool body; 2. Motor; 3. Stirring assembly; 301. First sprocket; 302. Second sprocket; 303. First chain; 304. Stirring member; 4. Gas delivery assembly; 401. Third sprocket; 402. Second chain; 403. Fourth sprocket; 404. Rotating rod; 405. First gear; 406. Second gear; 407. Round rod; 408. Third gear; 409. Fourth gear; 410. Gas delivery component; 411. Gas delivery barrel; 5. Filter assembly; 501. Filter element; 502. Protective plate; 503. Ear plate; 504. Bolt; 505. Extrusion block; 6. Cooling assembly; 601. Water pipe; 602. Connecting pipe; 603. Cooling pipe; 604. Sealing valve; 7. First protective shell; 8. Second protective shell; 9. Support plate; 10. First supporting shell; 11. Second supporting shell; 12. Partition plate; 13. Sealing frame; 14. Sealing gasket. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 -Attached Figure 7 , further details of this application are given.

[0027] Example: A wastewater treatment device for preventing MBBR filler accumulation, referring to Figure 1-7, including a tank body 1, the tank body 1 is used to place sewage and MBBR filler, and the sewage is biodegraded by the MBBR filler. The outer wall of the tank body 1 is fixedly connected to a motor 2. The tank body 1 is provided with a stirring component 3, and the stirring component 3 is used to stir the MBBR filler and sewage inside the tank body 1 to increase the fluidity of the MBBR filler. The tank body 1 is provided with an air supply component 4, and the air supply component 4 is used to inflate the inside of the tank body 1. The tank body 1 is provided with a filter component 5, and the filter component 5 is used to block the MBBR filler. The tank body 1 is provided with a cooling The cooling component 6 is used to cool the sewage inside the pool body 1. The gas transmission component 4 includes a third sprocket 401 fixedly connected to the outer wall of the motor 2 shaft. The motor 2 is used to drive the third sprocket 401 to rotate. The top of the pool body 1 is rotatably connected to a rotating rod 404. One end of the rotating rod 404 is fixedly connected to a fourth sprocket 403. The outer wall of the fourth sprocket 403 is transmission-connected to a second chain 402. The rotation of the third sprocket 401 can drive the fourth sprocket 403 to rotate through the second chain 402. The rotation of the fourth sprocket 403 The outer wall of the rotating rod 404 is fixedly connected to the first gear 405. The rotation of the rotating rod 404 can drive the first gear 405 to rotate. The first gear 405 is meshed with the second gear 406. The first gear 405 can drive the second gear 406 to rotate. The second gear 406 is fixedly connected to a round rod 407. The second gear 406 can drive the round rod 407 to rotate. The end of the round rod 407 away from the second gear 406 is fixedly connected to the third gear 408. The round rod 407 can rotate. To drive the third gear 408 to rotate, the third gear 408 is meshed with the fourth gear 409, and the fourth gear 409 can drive the fourth gear 409 to rotate. The bottom of the fourth gear 409 is fixedly connected to the air delivery component 410, and the rotation of the fourth gear 409 drives the air delivery component 410 to rotate. The outer wall of the air delivery component 410 is provided with a gas delivery barrel 411. When the third sprocket 401 rotates, negative pressure will be formed inside the gas delivery barrel 411, so that air will flow to one end of the gas delivery barrel 411, thereby adding air to the inside of the pool body 1.

[0028] Reference Figure 1 and Figure 5The stirring assembly 3 includes a first sprocket 301 fixedly connected to the outer wall of the rotating shaft of the motor 2, and the motor 2 can drive the first sprocket 301 to rotate. The outer wall of the pool body 1 is rotatably connected to the second sprocket 302, and the outer wall of the second sprocket 302 is transmission-connected to the first chain 303. The first chain 303 can make the rotation of the first sprocket 301 drive the second sprocket 302 to rotate. The first chain 303 is transmission-connected to the first sprocket 301, and the interior of the pool body 1 is rotatably connected to a stirring member 304. The rotation of the first chain 303 can drive the stirring member 304 to rotate. There are two stirring members 304, one stirring member 304 is arranged at the upper left part of the interior of the pool body 1, and the other stirring member 304 is arranged at the lower right part of the interior of the pool body 1. When the stirring members 304 distributed above and below rotate, the MBBR filler can circulate, thereby reducing the possibility of collision of the MBBR filler. One end of the stirring member 304 is fixedly connected to the second sprocket 302.

[0029] Reference Figure 2 and Figure 6 The filter assembly 5 includes a filter element 501 arranged on the side wall of the pool body 1. The filter element 501 is used to block the MBBR filler to prevent the MBBR filler from being lost. The side wall of the pool body 1 is movably connected with a protective plate 502. The protective plate 502 is used to block sewage and facilitate the outflow of sewage through the provided water outlet. The side wall of the protective plate 502 is fixedly connected with an ear plate 503. The ear plate 503 is movably connected with a bolt 504. The ear plate 503 and the bolt 504 are used in conjunction with each other to detachably connect the protective plate 502 to the pool body 1. The bolt 504 is threadedly connected to the side wall of the pool body 1. The protective plate 502 is fixedly connected to a side of the filter element 501 with an extrusion block 505. One side of the extrusion block 505 is in contact with one side of the filter element 501. The extrusion block 505 is used to fix the filter element 501 to prevent the filter element 501 from shaking during use.

[0030] Reference Figure 2 、 Figure 3 and Figure 6 The cooling assembly 6 includes a water pipe 601 fixedly connected to the bottom of the pool body 1. The water pipe 601 is provided with two ends, one end for water inlet and the other end for water outlet. A connecting pipe 602 is fixedly connected to the water pipe 601, and a cooling pipe 603 is fixedly connected to the top of the connecting pipe 602. The connecting pipe 602 is used to connect multiple cooling pipes 603 with the water pipe 601. One end of the cooling pipe 603 located inside the pool body 1 is inside the gas barrel 411. The cooling pipe 603 is used to cool the sewage inside the pool body 1. A sealing valve 604 is provided on the water pipe 601. There are two sealing valves 604, which are respectively provided at both ends of the water pipe 601.

[0031] Reference Figure 2 and Figure 5The outer wall of the pool body 1 is fixedly connected to a first protective shell 7, and the first protective shell 7 is used to protect the first sprocket 301, the second sprocket 302 and the first chain 303 to prevent the first sprocket 301, the second sprocket 302 and the first chain 303 from being affected by external factors and being damaged. The first protective shell 7 is rotatably connected to the rotating shaft of the motor 2, and the outer wall of the pool body 1 is fixedly connected to a second protective shell 8, and the second protective shell 8 is rotatably connected to the rotating shaft of the motor 2. The second protective shell 8 is used to protect the third sprocket 401, the second chain 402 and the fourth sprocket 403 to prevent the third sprocket 401, the second chain 402 and the fourth sprocket 403 from being damaged by external factors.

[0032] Reference Figure 2-4 The top of the pool body 1 is fixedly connected to a support plate 9, and a first support shell 10 is fixedly connected to the support plate 9. The support plate 9 is used to fix the first support shell 10. The side wall of the first support shell 10 is rotatably connected to the round rod 407. The first support shell 10 is used to support the fourth gear 409 and the third gear 408 to avoid separation during rotation. The air delivery member 410 is rotatably connected to the bottom of the first support shell 10, and the outer wall of the round rod 407 is rotatably connected to the second support shell 11. The second support shell 11 is used to support the second gear 406 and the first gear 405 to avoid separation between the second gear 406 and the first gear 405 during rotation. The second support shell 11 is rotatably connected to the rotating rod 404.

[0033] Reference Figure 3 The inner wall of the pool body 1 is provided with a partition plate 12, which is provided at the center of the pool body 1. The partition plate 12 is fixedly connected to the outer wall of the gas barrel 411. The partition plate 12 is used to separate the sewage, thereby making the circulation of the sewage more convenient.

[0034] Reference Figure 6 The filter element 501 is fixedly connected to a sealing frame 13 on one side close to the pool body 1. The size of the sealing frame 13 is the same as the groove opened on the pool body 1. The pool body 1 is detachably connected to a sealing gasket 14. The sealing gasket 14 is set to a soft material. One side of the sealing frame 13 is in contact with one side of the sealing gasket 14. The combined use of the sealing frame 13 and the sealing gasket 14 can prevent sewage from flowing out to the outside through the joint between the protective plate 502 and the pool body 1.

[0035] The implementation principle of the embodiment of the present application is as follows: when the device is used, MBBR filler is first added to the inside of the pool body 1, and then sewage is poured into the inside of the pool body 1. After the sewage is poured in, the first sprocket 301 can be driven to rotate by the motor 2. The rotation of the first sprocket 301 can drive the agitator 304 to rotate through the cooperation of the second sprocket 302 and the first chain 303, so that the sewage and MBBR filler inside the pool body 1 circulate in pairs. At the same time, when the motor 2 drives the first sprocket 301 to rotate, it can also drive the third sprocket 401 to rotate. The rotation of the third sprocket 401 can drive the rotating rod 404 to rotate through the cooperation of the second chain 402 and the fourth sprocket 403. The rotation of the rotating rod 404 can drive the round rod 407 to rotate through the engagement of the first gear 405 and the second gear 406. The rotation of the round rod 407 can be driven by the engagement of the second gear 402 and the fourth gear 403. The engagement of the third gear 408 and the fourth gear 409 drives the gas delivery member 410 to rotate, so that the gas flows into the sewage in the tank body 1 through the gas delivery barrel 411. When the microorganisms on the MBBR filler inside the tank body 1 biodegrade the impurities in the sewage, the temperature inside the tank body 1 may rise. At this time, cooling water can be added to the connecting pipe 602 and the cooling pipe 603 through the water pipe 601 to cool the sewage inside the tank body 1. At the same time, the air blown out of the gas delivery barrel 411 will also be cooled under the action of the cooling pipe 603, thereby avoiding affecting the microorganisms inside the tank body 1. After the sewage treatment is completed, the water can be discharged through the water outlet provided on the protective plate 502. At the same time, the filter element 501 will block the MBBR filler during the discharge, thereby preventing the MBBR filler from being lost and affecting the subsequent sewage treatment.

[0036] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A wastewater treatment device for preventing MBBR filler accumulation, comprising a tank body (1), characterized in that: The outer wall of the pool body (1) is fixedly connected to a motor (2), the pool body (1) is provided with a stirring assembly (3), the pool body (1) is provided with a gas transmission assembly (4), the pool body (1) is provided with a filtering assembly (5), and the pool body (1) is provided with a cooling assembly (6); The gas delivery assembly (4) comprises a third sprocket (401) fixedly connected to the outer wall of the rotating shaft of the motor (2); the top of the pool body (1) is rotatably connected to a rotating rod (404); one end of the rotating rod (404) is fixedly connected to a fourth sprocket (403); the outer wall of the fourth sprocket (403) is transmission-connected to a second chain (402); the outer wall of the rotating rod (404) is fixedly connected to a first gear (405); the first gear (405) is meshedly connected to a second gear (406); the second gear (406) is fixedly connected to a round rod (407); the end of the round rod (407) away from the second gear (406) is fixedly connected to a third gear (408); the third gear (408) is meshedly connected to a fourth gear (409); the bottom of the fourth gear (409) is fixedly connected to a gas delivery member (410); and the outer wall of the gas delivery member (410) is provided with a gas delivery barrel (411).

2. A wastewater treatment device for preventing MBBR filler accumulation according to claim 1, characterized in that: The stirring assembly (3) comprises a first sprocket (301) fixedly connected to the outer wall of the rotating shaft of the motor (2); the outer wall of the pool body (1) is rotatably connected to a second sprocket (302); the outer wall of the second sprocket (302) is transmission-connected to a first chain (303); the first chain (303) is transmission-connected to the first sprocket (301); the interior of the pool body (1) is rotatably connected to a stirring member (304); one end of the stirring member (304) is fixedly connected to the second sprocket (302).

3. A wastewater treatment device for preventing MBBR filler accumulation according to claim 1, characterized in that: The filter assembly (5) comprises a filter element (501) arranged on the side wall of the pool body (1); a protective plate (502) is movably connected to the side wall of the pool body (1); an ear plate (503) is fixedly connected to the side wall of the protective plate (502); a bolt (504) is movably connected to the ear plate (503); the bolt (504) is threadedly connected to the side wall of the pool body (1); an extrusion block (505) is fixedly connected to a side of the protective plate (502) close to the filter element (501); and one side of the extrusion block (505) is in contact with one side of the filter element (501).

4. A wastewater treatment device for preventing MBBR filler accumulation according to claim 1, characterized in that: The cooling assembly (6) comprises a water pipe (601) fixedly connected to the bottom of the pool body (1), a connecting pipe (602) fixedly connected to the water pipe (601), a cooling pipe (603) fixedly connected to the top of the connecting pipe (602), one end of the cooling pipe (603) located inside the pool body (1) is located inside the gas barrel (411), and a sealing valve (604) is provided on the water pipe (601).

5. A wastewater treatment device for preventing MBBR filler accumulation according to claim 1, characterized in that: A first protective shell (7) is fixedly connected to the outer wall of the pool body (1), and the first protective shell (7) is rotatably connected to the rotating shaft of the motor (2). A second protective shell (8) is fixedly connected to the outer wall of the pool body (1), and the second protective shell (8) is rotatably connected to the rotating shaft of the motor (2).

6. A wastewater treatment device for preventing MBBR filler accumulation according to claim 1, characterized in that: The top of the pool body (1) is fixedly connected to a support plate (9), a first support shell (10) is fixedly connected to the support plate (9), a side wall of the first support shell (10) is rotatably connected to a round rod (407), the gas delivery member (410) is rotatably connected to the bottom of the first support shell (10), an outer wall of the round rod (407) is rotatably connected to a second support shell (11), and the second support shell (11) is rotatably connected to the rotating rod (404).

7. A wastewater treatment device for preventing MBBR filler accumulation according to claim 1, characterized in that: The inner wall of the tank body (1) is provided with a partition plate (12), and the partition plate (12) is fixedly connected to the outer wall of the gas delivery barrel (411).

8. A wastewater treatment device for preventing MBBR filler accumulation according to claim 3, characterized in that: A sealing frame (13) is fixedly connected to a side of the filter element (501) close to the pool body (1), and a sealing gasket (14) is detachably connected to the pool body (1), with one side of the sealing frame (13) being in contact with one side of the sealing gasket (14).

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