MBR pool for sewage treatment

Abstract

The invention discloses an MBR tank for sewage treatment, and belongs to the technical field of sewage treatment devices, the MBR tank comprises a reaction tank and a plurality of support frames, membrane cloth is mounted on the support frames, a water inlet and a water outlet are respectively formed in two sides of the reaction tank, a plurality of bases are fixed in the reaction tank, two vertically arranged connecting plates are fixed on the top surfaces of the bases, and the connecting plates are fixed on the bottom surfaces of the bases. A sliding rail is arranged at the top of the reaction tank, a lifting device used for lifting the supporting frame is slidably mounted on the sliding rail, the lifting device comprises two moving blocks, a moving groove used for inserting the moving blocks is formed in the top surface of the supporting frame, a sliding groove is formed in the inner wall of the moving groove, and the sliding groove is communicated with the sliding rail. Inserting rods are slidably installed on the supporting frame through the sliding grooves in the length direction of the supporting frame, and connecting through holes allowing the inserting rods to penetrate through are formed in the side faces of the moving blocks. The membrane cloth cleaning device has the effect of ensuring the sewage treatment efficiency while cleaning the membrane cloth.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment equipment, and in particular to an MBR tank for sewage treatment. Background Art

[0002] With the continuous advancement of urbanization, sewage treatment has become an increasingly important issue in the fields of environmental protection and public health. Traditional sewage treatment technologies primarily rely on physical, chemical, and biological methods. While these methods can effectively reduce pollutants in sewage, they still have certain shortcomings in treatment efficiency, energy consumption, and operating costs. In particular, in the treatment of highly polluted or special types of sewage, traditional technologies face problems such as unstable treatment results, large land requirements, and high sludge production.

[0003] MBR (Membrane Bioreactor) technology, as a new type of wastewater treatment technology, combines the advantages of biological methods and membrane filtration, effectively improving wastewater treatment efficiency and effluent quality. Through the filtration action of the membrane components, it further removes solid matter and microorganisms from the water while simultaneously conducting biological treatment, thereby effectively enhancing treatment effectiveness. The use of MBR tanks not only improves treated water quality but also significantly saves floor space, reduces sludge production, and has excellent removal capabilities for high-concentration pollutants, making it suitable for a variety of wastewater treatment applications.

[0004] The membrane cloth needs to be aligned, cleaned or replaced after being used for a period of time. In the existing technology, the membrane cloth is usually backwashed. During the backwash, a certain amount of compressed air is introduced from the water inlet to make the pollutants attached to the membrane surface fall off under the action of the airflow. However, the filtration of sewage needs to be suspended during the backwash process, which affects the sewage filtration efficiency. Summary of the Invention

[0005] In order to improve the problem that membrane cloth backwashing will reduce sewage treatment efficiency, the present application provides an MBR pool for sewage treatment.

[0006] The MBR tank for sewage treatment provided in this application adopts the following technical solution: The top of the water pump stretches out the side of the water pump, and the bottom of the water pump stretches out the side of the water pump, and the bottom of the water pump stretches out to the rim of the water pump, thereby making the water pump stretch out.

[0007] By adopting the above technical solution, the moving block is inserted into the support frame, and then the insertion rod is passed through the connecting through hole, and the connection between the connecting plate and the support frame is released. The lifting device drives the support frame upward through the moving block, and then the support frame is moved to the outside of the reaction tank through the slide rail to facilitate the cleaning and replacement of the membrane cloth. During the cleaning process of the membrane cloth, other membrane cloths continue to filter the sewage to ensure the sewage treatment efficiency.

[0008] Preferably, a card slot is provided on the relative inner sides of the two connecting plates, and the connecting plates are slidably installed with a card block along their own width direction through the card slot. A card slot for inserting the card block is provided on the side of the support frame, and a card spring is fixed to the side of the card block away from the support frame, and one end of the card spring away from the card block is fixedly connected to the inner wall of the card slot.

[0009] By adopting the above technical solution, the support frame is moved downward between the two connecting plates. When the clamping block is aligned with the clamping groove, the clamping block is inserted into the clamping groove under the elastic force of the clamping spring, so that the support frame is clamped and fixed to the connecting plates.

[0010] Preferably, the top surface of the connecting plate is provided with an abutment groove connected to the card slot, and the connecting plate is installed with an abutment rod by vertical sliding through the abutment groove, and the top surface of the card block is provided with a card connection groove for passing the abutment rod, and the abutment rod is fixed with a plurality of abutment blocks on the side of the support frame away from the support frame, and the abutment blocks correspond to the card blocks one by one, and the inner wall of the card connection groove away from the support frame is provided with a slope 1, and the bottom surface of the abutment block is provided with a slope 2 for abutting with the slope 1.

[0011] By adopting the above technical solution, the abutment rod is pushed downward, and the abutment rod drives the abutment block to move downward synchronously, so that the inclined surface one and the inclined surface two abut against each other, and then pushes the card block to move in the direction away from the support frame, so that the card block is disengaged from the card slot, so that the lifting device can lift the support frame upward.

[0012] Preferably, a limiting block is fixed on the side of the abutment rod, and a limiting groove is provided on the inner wall of the abutment groove. The limiting block slides vertically with the connecting plate through the limiting groove, and a limiting spring is fixed on the bottom surface of the limiting block. The bottom end of the limiting spring is fixedly connected to the inner bottom surface of the limiting groove.

[0013] By adopting the above technical solution, the abutment rod moves upward under the elastic force of the limit spring, reducing the pressure of the abutment block on the clamping block, so that the clamping block is smoothly inserted into the clamping groove.

[0014] Preferably, the lifting device includes a sliding block and a movable plate, the sliding block is slidably installed on the slide rail, an electric hoist is installed on the sliding block, the top surface of the movable plate is fixedly connected to the steel wire rope of the electric hoist, two movable rods are fixed on the bottom surface of the movable plate, and the movable block is fixedly connected to the movable rods.

[0015] By adopting the above technical solution, the electric hoist is used to drive the movable plate to move downward, and the movable plate drives the two movable blocks to move downward and insert into the movable groove, so that the insertion rod can be inserted into the connecting through hole.

[0016] Preferably, a cavity is provided at the top of the support frame, a rotating rod is rotatably installed in the cavity, a gear is fixedly mounted on the outer periphery of the rotating rod, racks are provided on both sides of the gear, the racks and the gears are meshed with each other, the racks correspond to the insertion rods one by one, the racks are fixedly connected to the corresponding insertion rods, and a driving member for driving the rotating rod to rotate is provided on the movable plate.

[0017] By adopting the above technical solution, the gear is rotated, and the gear drives the two racks to rotate in opposite directions, and the racks drive the insertion rod to move toward the direction close to the moving block, so that the insertion rod can be inserted into the connecting through hole.

[0018] Preferably, the driving member includes a driving rod rotatably mounted on the movable plate, a motor is mounted on the movable plate, the output end of the motor is fixedly connected to the top end of the driving rod, a driving sleeve is fixed to the bottom end of the driving rod, a block is fixed to the top end of the rotating rod, and the driving sleeve can be sleeved on the outer periphery of the block.

[0019] By adopting the above technical solution, when the moving block is inserted into the moving groove, the driving sleeve is sleeved on the outer periphery of the block, and the motor is started. The motor drives the block to rotate synchronously through the driving sleeve, and then drives the gear to rotate.

[0020] Preferably, the top and circumferential sides of the blocks are respectively provided with inclined surfaces for giving way.

[0021] By adopting the above technical solution, the peripheral sides of the block are all provided with inclined surfaces to facilitate the smooth installation of the driving sleeve on the outer periphery of the block.

[0022] Preferably, the support frame is installed with a pressure block that slides vertically through the movable groove, and the pressure block can be inserted into the abutment groove. A sliding block is fixed on the side of the pressure block, and a sliding groove is provided on the inner wall of the movable groove. The sliding block slides vertically with the support frame through the sliding groove.

[0023] By adopting the above technical solution, when the moving block moves downward and is inserted into the moving groove, the moving block abuts against the pressing block and pushes the pressing block to move downward and insert into the abutting groove, thereby pushing the abutting rod to move downward, so that the card block can be separated from the card slot. At this time, the support frame is separated from the connecting plate, and the support frame moves a certain distance toward the water outlet under the impact force of the sewage, so that the card block will not be inserted into the card slot again when the lifting device lifts the support frame.

[0024] Preferably, a first magnetic block is fixed to the top surface of the pressing block, and a second magnetic block is fixed to the bottom surface of the moving block, and the first magnetic block and the second magnetic block can be attracted to each other.

[0025] By adopting the above technical solution, when the moving block moves downward, the suction force of the first and second magnetic blocks enables the moving block to be smoothly inserted into the moving groove, and at the same time enables the driving sleeve to be sleeved on the outer periphery of the block.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Insert the moving block into the support frame, then pass the insertion rod through the connecting hole and release the connection between the connecting plate and the support frame. The lifting device drives the support frame upward through the moving block, and then moves the support frame to the outside of the reaction tank through the slide rail to facilitate cleaning and replacement of the membrane cloth. During the cleaning process, other membrane cloths continue to filter the sewage to ensure sewage treatment efficiency; 2. When the moving block is inserted into the moving slot, the drive sleeve is sleeved on the outer periphery of the block, and the motor is started. The motor drives the block to rotate synchronously through the drive sleeve, and then drives the gear to rotate; 3. When the moving block moves downward and is inserted into the moving groove, the moving block abuts against the pressing block and pushes the pressing block to move downward and insert into the abutting groove, thereby pushing the abutting rod to move downward so that the card block can be separated from the slot. At this time, the support frame is separated from the connecting plate, and the support frame moves a certain distance toward the water outlet under the impact force of the sewage, so that the card block will not be inserted into the card slot again when the lifting device lifts the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the MBR pool for sewage treatment in an embodiment of the present application.

[0028] Figure 2It is a cross-sectional view of a connecting plate in an MBR tank for sewage treatment according to an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of the abutment blocks and the clamping blocks in the MBR tank for sewage treatment according to an embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram of the lifting device in the MBR tank for sewage treatment in an embodiment of the present application.

[0031] Figure 1: Reaction tank; 11: Water inlet; 12: Water outlet; 13: Base; 14: Connecting plate; 2: Support frame; 21: Membrane cloth; 22: Snap-fit ​​groove; 23: Cavity; 24: Rotating rod; 25: Gear; 26: Rack; 27: Insert rod; 271: Slide groove; 28: Block; 281: Make way slope; 3: Lifting device; 31: Slide rail; 311: Sliding block; 32: Moving plate; 33: Electric hoist; 34: Moving rod; 35: Moving Moving block; 351, connecting through hole; 352, magnetic block 2; 36, motor; 37, driving rod; 38, driving sleeve; 4, clamping block; 41, clamping groove; 42, clamping spring; 43, clamping through groove; 44, inclined plane 1; 5, abutting rod; 51, abutting groove; 52, abutting block; 53, inclined plane 2; 54, limiting block; 55, limiting groove; 56, limiting spring; 6, pressing block; 61, moving groove; 62, sliding block; 63, sliding groove; 64, magnetic block 1. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application discloses an MBR tank for sewage treatment. Figure 1 and Figure 2 The MBR pool for sewage treatment includes a reaction tank 1 and several support frames 2, on which a membrane cloth 21 is installed. A water inlet 11 and a water outlet 12 are respectively provided on both sides of the reaction tank 1. Several bases 13 are fixed in the reaction tank 1, and the several bases 13 are arranged at equal intervals along the length direction of the reaction tank 1. Two vertically arranged connecting plates 14 are fixed to the top surface of the base 13, and the connecting plates 14 can be clamped and fixed with the support frame 2. A slide rail 31 is provided on the top of the reaction tank 1, and a lifting device 3 for lifting the support frame 2 is slidably installed on the slide rail 31 along the length direction of the reaction tank 1.

[0034] Reference Figure 2 and Figure 3The two connecting plates 14 are provided with respective slots 41 on their opposing inner sides. The connecting plates 14 are slidably mounted with the clamping blocks 4 through the slots 41 along their width. The side surfaces of the support frame 2 are provided with engaging slots 22 for inserting the clamping blocks 4. A clamping spring 42 is fixed to the side of the clamping block 4 facing away from the support frame 2. The end of the clamping spring 42 facing away from the clamping block 4 is fixedly connected to the inner wall of the slot 41. When the support frame 2 is moved downward between the two connecting plates 14, when the clamping block 4 is aligned with the engaging slot 22, the clamping block 4 is inserted into the engaging slot 22 under the elastic force of the engaging spring 42, thereby securing the support frame 2 to the connecting plates 14.

[0035] Reference Figure 2 and Figure 3 The top surface of the connecting plate 14 defines an abutment groove 51 that communicates with the latching slot 41. The connecting plate 14 is vertically slidably mounted with the abutment rod 5 through the abutment groove 51. The top surface of the clamping block 4 defines a through-clip groove 43 for receiving the abutment rod 5. Several abutment blocks 52 are fixed to the side of the abutment rod 5 facing away from the support frame 2. Each abutment block 52 corresponds to each clamping block 4. An inclined surface 1 44 is provided on the inner wall of the through-clip groove 43 facing away from the support frame 2. The bottom surface of each abutment block 52 defines an inclined surface 2 53 for abutting against inclined surface 1 44. A limit block 54 is fixed to the side of the abutment rod 5. A limit groove 55 is defined on the inner wall of the abutment groove 51. The limit block 54 vertically slidably engages with the connecting plate 14 through the limit groove 55. A limit spring 56 is fixed to the bottom surface of the limit block 54. The bottom end of the limit spring 56 is fixedly connected to the inner bottom surface of the limit groove 55.

[0036] Pushing the abutting rod 5 downwards, the abutting rod 5 drives the abutting block 52 to move downwards synchronously, so that the inclined surface 1 44 and the inclined surface 2 53 abut against each other, thereby pushing the clamping block 4 to move away from the support frame 2, so that the clamping block 4 can be disengaged from the clamping slot 22.

[0037] Reference Figure 4 The lifting device 3 includes a sliding block 311 that is slidably mounted on a slide rail 31, and an electric hoist 33 is mounted on the sliding block 311. A moving plate 32 is mounted at the bottom of the wire rope of the electric hoist 33, and two vertically arranged moving rods 34 are fixed to the bottom surface of the moving plate 32. A moving block 35 is fixed to the bottom end of the moving rod 34, and a moving groove 61 for inserting the moving block 35 is provided on the top surface of the support frame 2. A sliding groove 271 is provided on the inner wall of the moving groove 61, and the support frame 2 is slidably mounted with an insertion rod 27 along its own length direction through the sliding groove 271. A connecting through-hole 351 is provided on the side of the moving block 35 for inserting the insertion rod 27.

[0038] Insert the moving block 35 into the support frame 2 , then pass the insertion rod 27 through the connecting through hole 351 , and release the connection between the connecting plate 14 and the support frame 2 . The electric hoist 33 drives the support frame 2 to move upward through the moving plate 32 .

[0039] Reference Figure 4 A cavity 23 is provided at the top of the support frame 2, and a rotating rod 24 is rotatably installed in the cavity 23. A gear 25 is fixedly mounted on the outer periphery of the rotating rod 24, and racks 26 are respectively provided on both sides of the gear 25, and the racks 26 and the gear 25 are meshed with each other. The racks 26 correspond one-to-one with the plug rods 27, and the racks 26 are fixedly connected to the corresponding plug rods 27. A vertically arranged driving rod 37 is rotatably installed on the bottom surface of the movable plate 32, and a motor 36 is installed on the movable plate 32, and the output end of the motor 36 is fixedly connected to the top end of the driving rod 37. A driving sleeve 38 is fixed to the bottom end of the driving rod 37, and a block 28 is fixed to the top end of the rotating rod 24, and the driving sleeve 38 can be sleeved on the outer periphery of the block 28. The top periphery of the block 28 is respectively provided with a relief slope 281 to facilitate the smooth sleeve 38 sleeved on the outer periphery of the block 28.

[0040] When the moving block 35 is inserted into the moving groove 61, the driving sleeve 38 is sleeved on the outer periphery of the block 28, and the motor 36 is started. The motor 36 drives the block 28 to rotate synchronously through the driving sleeve 38, and then drives the gear 25 to rotate. The gear 25 drives the two racks 26 to rotate in the opposite direction. The racks 26 drive the insertion rod 27 to move toward the direction close to the moving block 35, so that the insertion rod 27 can be inserted into the connecting through hole 351.

[0041] Reference Figure 4 The support frame 2 is provided with a pressure block 6 that slides vertically through a movable groove 61. The pressure block 6 can be inserted into the abutment groove 51. A sliding block 62 is fixed to the side of the pressure block 6. A sliding groove 63 is formed on the inner wall of the movable groove 61. The sliding block 62 slides vertically with the support frame 2 through the sliding groove 63. A magnetic block 1 64 is fixed to the top surface of the pressure block 6, and a magnetic block 2 352 is fixed to the bottom surface of the movable block 35. The magnetic block 1 64 and the magnetic block 2 352 can attract each other.

[0042] During the downward movement of the moving block 35, the suction force of the magnetic block 1 64 on the magnetic block 2 352 enables the moving block 35 to be smoothly inserted into the moving groove 61. When the moving block 35 is inserted into the moving groove 61, the moving block 35 abuts against the pressing block 6 and pushes the pressing block 6 to move downward and insert into the abutting groove 51, thereby pushing the abutting rod 5 to move downward, so that the card block 4 can be disengaged from the card slot 41. At this time, the support frame 2 is separated from the connecting plate 14, and the support frame 2 moves a certain distance toward the water outlet 12 under the impact force of the sewage, so that the card block 4 will not be inserted into the card slot 22 again during the process of the lifting device 3 lifting the support frame 2.

[0043] The implementation principle of an MBR pool for sewage treatment in an embodiment of the present application is as follows: insert the moving block 35 into the support frame 2, then pass the insertion rod 27 through the connecting through-hole 351, and release the connection between the connecting plate 14 and the support frame 2. The lifting device 3 drives the support frame 2 to move upward through the moving block 35, and then moves the support frame 2 to the outside of the reaction tank 1 through the slide rail 31 to facilitate cleaning and replacement of the membrane cloth 21. During the cleaning process of the membrane cloth 21, other membrane cloths 21 continue to filter the sewage to ensure the sewage treatment efficiency.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A MBR tank for sewage treatment, characterized by: The invention comprises a reaction pool (1) and a plurality of support frames (2), wherein a membrane cloth (21) is installed on the support frame (2), a water inlet (11) and a water outlet (12) are respectively provided on both sides of the reaction pool (1), a plurality of bases (13) are fixed in the reaction pool (1), two vertically arranged connecting plates (14) are fixed on the top surface of the base (13), and the connecting plates (14) can be fixedly connected with the support frame (2), and a slide rail (31) is provided on the top of the reaction pool (1), and a sliding device (31) is provided on the slide rail (31). A lifting device (3) for lifting the support frame (2) is provided, the lifting device (3) comprising two moving blocks (35), a moving groove (61) for inserting the moving block (35) is provided on the top surface of the support frame (2), a sliding groove (271) is provided on the inner wall of the moving groove (61), the support frame (2) is slidably installed with an insertion rod (27) along its own length direction through the sliding groove (271), and a connecting through hole (351) for inserting the insertion rod (27) is provided on the side surface of the moving block (35).

2. A MBR tank for sewage treatment according to claim 1, characterized in that: A clamping groove (41) is respectively provided on the opposite inner sides of the two connecting plates (14); the connecting plates (14) are slidably mounted with a clamping block (4) along their own width direction through the clamping groove (41); a clamping groove (22) for inserting the clamping block (4) is provided on the side of the support frame (2); a clamping spring (42) is fixed on the side of the clamping block (4) away from the support frame (2); and one end of the clamping spring (42) away from the clamping block (4) is fixedly connected to the inner wall of the clamping groove (41).

3. A MBR tank for sewage treatment according to claim 2, characterized in that: The top surface of the connecting plate (14) is provided with an abutting groove (51) connected with the card groove (41); the connecting plate (14) is provided with an abutting rod (5) for vertical sliding installation through the abutting groove (51); the top surface of the card block (4) is provided with a card-connecting groove (43) for passing the abutting rod (5); a plurality of abutting blocks (52) are fixed on the side of the abutting rod (5) away from the support frame (2); the abutting blocks (52) correspond to the card blocks (4) one by one; the inner wall of the card-connecting groove (43) away from the support frame (2) is provided with an inclined surface 1 (44); the bottom surface of the abutting block (52) is provided with an inclined surface 2 (53) for abutting against the inclined surface 1 (44).

4. A MBR tank for sewage treatment according to claim 3, characterized in that: A limiting block (54) is fixed on the side of the abutting rod (5), and a limiting groove (55) is provided on the inner wall of the abutting groove (51). The limiting block (54) is slidably engaged with the connecting plate (14) in the vertical direction through the limiting groove (55). A limiting spring (56) is fixed on the bottom surface of the limiting block (54), and the bottom end of the limiting spring (56) is fixedly connected to the inner bottom surface of the limiting groove (55).

5. The MBR tank for sewage treatment according to claim 3, characterized in that: The lifting device (3) includes a sliding block (311) and a movable plate (32), wherein the sliding block (311) is slidably mounted on the slide rail (31), an electric hoist (33) is mounted on the sliding block (311), the top surface of the movable plate (32) is fixedly connected to the steel wire rope of the electric hoist (33), and two movable rods (34) are fixedly mounted on the bottom surface of the movable plate (32), and the movable block (35) is fixedly connected to the movable rods (34).

6. A MBR tank for sewage treatment according to claim 5, characterized in that: A cavity (23) is provided on the top of the support frame (2), a rotating rod (24) is rotatably installed in the cavity (23), a gear (25) is fixedly sleeved on the outer periphery of the rotating rod (24), racks (26) are respectively provided on both sides of the gear (25), the racks (26) and the gears (25) are meshed with each other, the racks (26) and the insertion rods (27) are in one-to-one correspondence, the racks (26) are fixedly connected to the corresponding insertion rods (27), and a driving member for driving the rotating rod (24) to rotate is provided on the movable plate (32).

7. A MBR tank for sewage treatment according to claim 6, characterized in that: The driving member includes a driving rod (37) rotatably mounted on the movable plate (32), a motor (36) is mounted on the movable plate (32), an output end of the motor (36) is fixedly connected to the top end of the driving rod (37), a driving sleeve (38) is fixed to the bottom end of the driving rod (37), a block (28) is fixed to the top end of the rotating rod (24), and the driving sleeve (38) can be sleeved on the outer periphery of the block (28).

8. The MBR tank for sewage treatment according to claim 7, characterized in that: The top peripheral sides of the blocks (28) are respectively provided with sloping surfaces (281).

9. The MBR tank for sewage treatment according to claim 7, characterized in that: The support frame (2) is provided with a pressing block (6) which is slidably mounted in the vertical direction through the movable groove (61); the pressing block (6) can be inserted into the abutting groove (51); a sliding block (62) is fixed to the side of the pressing block (6); a sliding groove (63) is provided on the inner wall of the movable groove (61); the sliding block (62) is slidably engaged with the support frame (2) in the vertical direction through the sliding groove (63).

10. The MBR tank for sewage treatment according to claim 9, characterized in that: A magnetic block 1 (64) is fixed on the top surface of the pressing block (6), and a magnetic block 2 (352) is fixed on the bottom surface of the moving block (35). The magnetic block 1 (64) and the magnetic block 2 (352) can be attracted to each other.

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