MBR membrane sewage treatment device

Abstract

The utility model discloses an MBR (Membrane Bioreactor) membrane sewage treatment device and relates to the technical field of sewage treatment equipment. Comprising an adjusting tank, an anaerobic tank, an MBR reaction tank, a sludge tank and a clean water tank, a cleaning mechanism and a sludge pump are arranged on the inner side of the MBR reaction tank, an MBR curtain type membrane system and a cleaning water pump are arranged on the inner side of the cleaning mechanism, and the sludge pump is located on the outer side of the cleaning mechanism. The adjusting worm and the adjusting worm gear are matched to drive the sealing turnover plates to turn over, the position between every two adjacent adjusting frames is sealed through the matching of the multiple sealing turnover plates, then an independent space is formed on the outer side of the MBR curtain type membrane system, and water in the clean water tank is pumped out through the backwashing pump. Then the MBR curtain type membrane system is subjected to back flushing through the back flushing water inlet pipe, flushing sewage enters a sealed space on the outer side of the MBR curtain type membrane system, and sewage in the sealed space is discharged through the cleaning water pump. According to the device, the MBR curtain type membrane system does not need to be moved out for cleaning, so that the labor and time cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment equipment technical field especially relates to a MBR membrane sewage treatment device. BACKGROUND

[0002] MBR (Membrane Bio-Reactor) technology is a kind of high-efficiency sewage treatment process combined traditional activated sludge method and membrane separation technology.It realizes the efficient separation of sludge and water by combining ultrafiltration and microfiltration membrane separation technology with biological reactor in sewage treatment.In MBR system, membrane module replaces the traditional secondary sedimentation tank, effectively intercepts activated sludge and macromolecular organic matter in water, thereby improving the activated sludge concentration (MLSS) in biological reactor, significantly enhancing the organic matter processing load, and reducing the land occupation of sewage treatment facilities.Meanwhile, MBR technology reduces the generation amount of residual sludge by optimizing sludge load, further improves the sewage treatment efficiency.

[0003] Traditional MBR device is easy to be attached and deposited by pollutants after being used for a period of time due to long-term contact of membrane module with sewage, which leads to the decline of membrane flux, affects the effluent water quality and the stable operation of system.In order to restore the performance of membrane module, it is usually needed to remove it from the reactor for cleaning, which is time-consuming and laborious.Therefore, the present application scheme proposes a MBR membrane sewage treatment device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of MBR membrane sewage treatment device, solves the technical problem proposed in background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a kind of MBR membrane sewage treatment device, including adjusting pool, anaerobic tank, MBR reaction tank, sludge tank and clean water tank, the diving pump is provided in the adjusting pool, the output end of the diving pump is fixedly connected with water guide pipe, the end of water guide pipe away from diving pump extends into anaerobic tank, the adjacent side wall of anaerobic tank and MBR reaction tank is all provided with water hole, and anaerobic tank and MBR reaction tank are communicated by two water holes, the inside of MBR reaction tank is provided with cleaning mechanism and sludge pump, the inside of cleaning mechanism is provided with MBR curtain type membrane system and cleaning water pump, the output end of cleaning water pump is fixedly connected with cleaning pipe, the end of cleaning pipe away from cleaning water pump extends to the outside of cleaning mechanism, the sludge pump is located at the outside of cleaning mechanism, the output end of sludge pump is fixedly connected with blow-off pipe, the end of blow-off pipe away from sludge pump extends into sludge tank, the water outlet end of MBR curtain type membrane system is connected with water suction pipe, the outside of MBR reaction tank is provided with clean water pump, the input end of clean water pump is communicated with water suction pipe, the output end of clean water pump is fixedly connected with outlet pipe, the end of outlet pipe away from clean water pump extends into clean water tank.

[0006] Preferably, the cleaning mechanism includes a backwash pump and a bottom plate, the upper surface of the bottom plate is fixedly connected with an adjusting frame at each corner, a plurality of sealing flip plates are arranged between the front and rear adjusting frames and between the left and right adjusting frames, one end of each of the plurality of sealing flip plates in the clockwise direction is rotatably connected with the outer side wall of the adjacent adjusting frame, one end of each of the plurality of sealing flip plates in the counterclockwise direction is fixedly connected with a connecting rod, the end of the connecting rod away from the sealing flip plate penetrates the side wall of the adjacent adjusting frame and is fixedly connected with an adjusting worm wheel, an adjusting worm is rotatably connected to the inner wall of the lower side of the adjusting frame, the upper end of the adjusting worm penetrates the upper side wall of the adjusting frame and is fixedly connected with a transmission gear disc, and the adjusting worm wheel is matched with the adjusting worm.

[0007] Preferably, the upper end of the MBR reaction tank is fixedly connected with an auxiliary frame, the upper end of the auxiliary frame is fixedly connected with an adjusting motor, the output end of the adjusting motor penetrates the upper side wall of the auxiliary frame and is fixedly connected with a rotating rod, the lower end of the rotating rod is fixedly connected with the upper end of one of the transmission gear discs, a transmission chain is arranged on the outside of the transmission gear disc, and the four transmission gear discs are driven by the transmission chain.

[0008] Preferably, the sealing flip plate has a Z-shaped structure, and a sealing gasket is arranged between the connecting rod and the side wall of the adjusting frame.

[0009] Preferably, the output end of the backwashing pump is fixedly connected with a backwashing water inlet pipe, one end of the backwashing water inlet pipe away from the backwashing pump is communicated with the water pumping pipe, the input end of the backwashing pump is fixedly connected with a backwashing water supply pipe, and one end of the backwashing water supply pipe away from the backwashing pump extends into the clean water pool.

[0010] Preferably, the inside of the MBR reaction tank is provided with a plurality of aeration pipes, a plurality of aeration holes are formed in the side wall of the aeration pipe, the outside of the MBR reaction tank is provided with an aeration pump, and the plurality of aeration pipes are communicated with the output end of the aeration pump.

[0011] Preferably, the outside of the MBR reaction tank is provided with a secondary treatment pump, the output end of the secondary treatment pump is fixedly connected with a secondary treatment leading-out pipe, one end of the secondary treatment leading-out pipe away from the secondary treatment pump extends above the anaerobic tank, the input end of the secondary treatment pump is fixedly connected with a secondary treatment leading-in pipe, and one end of the secondary treatment leading-in pipe away from the secondary treatment pump extends into the sludge tank.

[0012] Compared with the related art, the MBR membrane sewage treatment device has the following beneficial effects:

[0013] 1. The MBR membrane sewage treatment device provided by the utility model, the cleaning mechanism is arranged in the scheme, the MBR curtain type membrane system is located in the cleaning mechanism, the bottom plate, the four adjusting frames and the plurality of sealing turnover plates cooperate to form a frame body, the MBR curtain type membrane system and the cleaning water pump are located in the frame body, when cleaning is needed, the adjusting motor drives the rotating rod and one of the transmission toothed discs to rotate, the transmission chain drives the other three transmission toothed discs to rotate, the adjusting worm is driven to rotate, the sealing turnover plates are turned over through the cooperation of the adjusting worm and the adjusting worm wheel, the positions between the two adjacent adjusting frames are sealed through the cooperation of the plurality of sealing turnover plates, an independent space is formed outside the MBR curtain type membrane system, the water in the clean water pool is pumped out through the backwashing pump, the MBR curtain type membrane system is backwashed through the backwashing water inlet pipe, the sewage is discharged through the cleaning water pump, the MBR curtain type membrane system does not need to be removed for cleaning, and the manpower and time cost are saved.

[0014] 2. The MBR membrane sewage treatment device provided by the utility model, the cleaning mechanism and the MBR reaction tank are independently arranged in the device, can be installed and used according to actual needs, and is relatively convenient; and the device is located in the MBR reaction tank, and the land occupation is greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is the sectional view of the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 3 It is the sectional view of the three-dimensional structure schematic diagram of the utility model; Figure 2 It is the sectional view of the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 4 It is the sectional view of the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 5 It is the sectional view of the three-dimensional structure schematic diagram of the utility model;

[0020] Figure 6 It is the sectional view of the three-dimensional structure schematic diagram of the utility model;

[0021] Figure 7 It is the sectional view of the three-dimensional structure schematic diagram of the utility model; Figure 6 It is the sectional view of the three-dimensional structure schematic diagram of the utility model;

[0022] Figure 8 It is the sectional view of the three-dimensional structure schematic diagram of the utility model;

[0023] Figure 9 It is the sectional view of the three-dimensional structure schematic diagram of the utility model.

[0024] In the drawing: 1, adjusting pool; 2, anaerobic pool; 3, MBR reaction pool; 4, sludge pool; 5, clean water pool; 6, submersible pump; 7, water guide pipe; 8, water hole; 9, aeration pump; 10, aeration pipe; 11, aeration hole; 12, cleaning mechanism; 13, sludge pump; 14, sewage pipe; 15, clean water pump; 16, outlet pipe; 17, pumping pipe; 18, MBR curtain type membrane system; 19, backwashing water supply pipe; 20, backwashing pump; 21, backwashing inlet pipe; 22, secondary treatment pump; 23, secondary treatment guide-in pipe; 24, secondary treatment guide-out pipe; 25, adjusting frame; 26, auxiliary frame; 27, adjusting motor; 28, bottom plate; 29, rotating rod; 30, sealing turnover plate; 31, adjusting worm gear; 32, adjusting worm; 33, transmission tooth disc; 34, transmission chain; 35, cleaning water pump; 36, cleaning pipe; 37, connecting rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer toFigures 1-3 The utility model provides a technical scheme: a kind of MBR membrane sewage treatment device, including regulating pool 1, anaerobic tank 2, MBR reaction tank 3, sludge tank 4 and clean water tank 5, it is characterized by: regulating pool 1 is provided with submersible pump 6, the output end of submersible pump 6 is fixedly connected with water guide pipe 7, one end of water guide pipe 7 away from submersible pump 6 extends to anaerobic tank 2, and the adjacent side wall of anaerobic tank 2 and MBR reaction tank 3 is all provided with water hole 8, and anaerobic tank 2 and MBR reaction tank 3 are communicated by two water holes 8, and the inside of MBR reaction tank 3 is provided with cleaning mechanism 12 and sludge pump 13, and the inside of cleaning mechanism 12 is provided with MBR curtain type membrane system 18 and cleaning water pump 35, the output end of cleaning water pump 35 is fixedly connected with cleaning pipe 36, one end of cleaning pipe 36 away from cleaning water pump 35 extends to the outside of cleaning mechanism 12, and sludge pump 13 is located at the outside of cleaning mechanism 12, and the output end of sludge pump 13 is fixedly connected with blow-off pipe 14, one end of blow-off pipe 14 away from sludge pump 13 extends to sludge tank 4, and the water outlet end of MBR curtain type membrane system 18 is connected with water suction pipe 17, and the outside of MBR reaction tank 3 is provided with clean water pump 15, and the input end of clean water pump 15 is communicated with water suction pipe 17, and the output end of clean water pump 15 is fixedly connected with water outlet pipe 16, and one end of water outlet pipe 16 away from clean water pump 15 extends to clean water tank 5, when using, sewage is introduced into regulating pool 1, then the sewage in regulating pool 1 is introduced into anaerobic tank 2 by submersible pump 6, and is flowed into MBR reaction tank 3 by water hole 8, at this time, sealing flip plate 30 is in horizontal state, so that MBR curtain type membrane system 18 is placed in the sewage of MBR reaction tank 3, and the clean water at the water outlet end of MBR curtain type membrane system 18 is introduced into clean water tank 5 by clean water pump 15 after passing through MBR curtain type membrane system 18, that is, the sewage treatment is completed;

[0027] The output end of backwash pump 20 is fixedly connected with backwash inlet pipe 21, one end of backwash inlet pipe 21 away from backwash pump 20 is communicated with water suction pipe 17, the input end of backwash pump 20 is fixedly connected with backwash water supply pipe 19, and one end of backwash water supply pipe 19 away from backwash pump 20 extends to clean water tank 5;

[0028] The inside of MBR reaction tank 3 is provided with a plurality of aeration pipes 10, a plurality of aeration holes 11 are formed on the side wall of aeration pipe 10, the outside of MBR reaction tank 3 is provided with aeration pump 9, and a plurality of aeration pipes 10 are communicated with the output end of aeration pump 9, the setting of aeration pump 9 and aeration pipe 10 increases the dissolved oxygen content in water, to meet the oxygen required in the metabolic process of aerobic microorganism, promote the growth and metabolic activity of microorganism, to effectively decompose organic matter in sewage.

[0029] The outer side of the MBR reaction tank 3 is provided with a secondary treatment pump 22, the output end of the secondary treatment pump 22 is fixedly connected with a secondary treatment leading-out pipe 24, the end of the secondary treatment leading-out pipe 24 away from the secondary treatment pump 22 extends to the upper side of the anaerobic tank 2, the input end of the secondary treatment pump 22 is fixedly connected with a secondary treatment leading-in pipe 23, the end of the secondary treatment leading-in pipe 23 away from the secondary treatment pump 22 extends into the sludge tank 4, and the secondary treatment pump 22 can guide the water on the upper side of the sludge tank 4 into the anaerobic tank 2 for further treatment.

[0030] Referring to Figures 4-9 The cleaning mechanism 12 comprises a backwashing pump 20 and a bottom plate 28, the upper surface of the bottom plate 28 is fixedly connected with adjusting frames 25 at four corners, a plurality of sealing flip plates 30 are arranged between the front and rear adjusting frames 25 and between the left and right adjusting frames 25, one end of each of the plurality of sealing flip plates 30 in the clockwise direction is rotatably connected with the outer side wall of the adjacent adjusting frame 25, the other end of each of the plurality of sealing flip plates 30 in the counterclockwise direction is fixedly connected with a connecting rod 37, the end of the connecting rod 37 away from the sealing flip plate 30 penetrates the side wall of the adjusting frame 25 at the adjacent position and is fixedly connected with an adjusting worm wheel 31, the inner wall of the lower side of the adjusting frame 25 is rotatably connected with an adjusting worm 32, the upper end of the adjusting worm 32 penetrates the upper side wall of the adjusting frame 25 and is fixedly connected with a transmission gear disc 33, the adjusting worm wheel 31 is matched with the adjusting worm 32, the upper end of the auxiliary frame 26 is fixedly connected with an adjusting motor 27, the output end of the adjusting motor 27 penetrates the upper side wall of the auxiliary frame 26 and is fixedly connected with a rotating rod 29, the lower end of the rotating rod 29 is fixedly connected with the upper end of one of the transmission gear discs 33, the outer side of the transmission gear disc 33 is provided with a transmission chain 34, and the four transmission gear discs 33 are driven by the transmission chain 34; when it is necessary to clean the MBR curtain membrane system 18, the transmission gear disc 33 at the lower end of the rotating rod 29 is driven to rotate by the adjusting motor 27, the other three transmission gear discs 33 are driven to rotate by the transmission chain 34, the adjusting worm 32 is driven to rotate, the sealing flip plate 30 is driven to flip under the cooperation of the adjusting worm 32 and the adjusting worm wheel 31, when the plurality of sealing flip plates 30 cooperate, an independent space is formed outside the MBR curtain membrane system 18, the water in the clean water tank 5 is pumped out by the backwashing pump 20, the MBR curtain membrane system 18 is backwashed by the backwashing water inlet pipe 21, the washed sewage enters the sealing space outside the MBR curtain membrane system 18, and the sewage in the sealing space is discharged by the cleaning water pump 35.

[0031] The sealing flip plate 30 has a Z-shaped structure, the Z-shaped structure enables the adjacent sealing flip plates 30 to be better sealed, the connecting rod 37 and the side wall of the adjusting frame 25 are provided with a sealing gasket, and the sealing gasket avoids water entering the adjusting frame 25, thereby avoiding damage to the equipment.

[0032] Working principle: in use, sewage is introduced into the adjusting pool 1, and then the sewage in the adjusting pool 1 is introduced into the anaerobic tank 2 by the submersible pump 6, and then flows into the MBR reaction tank 3 through the water hole 8, at this time, the sealing turnover plate 30 is in the horizontal state, so that the MBR curtain type membrane system 18 is placed in the sewage in the MBR reaction tank 3, and then the clean water at the water outlet of the MBR curtain type membrane system 18 is introduced into the clean water tank 5 by the clean water pump 15 after passing through the MBR curtain type membrane system 18, that is, the sewage treatment is completed; the sludge in the MBR reaction tank 3 is introduced into the sludge tank 4 by the sludge pump 13, when it is necessary to clean the MBR curtain type membrane system 18, the transmission gear disc 33 at the lower end of the rotating rod 29 is driven to rotate by the adjusting motor 27, the transmission gear disc 33 drives the other three transmission gear discs 33 to rotate through the transmission chain 34, and then drives the adjusting worm 32 to rotate, and the sealing turnover plate 30 is turned over under the cooperation of the adjusting worm 32 and the adjusting worm wheel 31, when several sealing turnover plates 30 cooperate, an independent space is formed outside the MBR curtain type membrane system 18, then the water in the clean water tank 5 is pumped out by the backwashing pump 20, and then the MBR curtain type membrane system 18 is backwashed through the backwashing water inlet pipe 21, the sewage after washing enters the sealing space outside the MBR curtain type membrane system 18, and then the sewage is discharged by the cleaning water pump 35, so that the MBR curtain type membrane system 18 does not need to be removed for cleaning, which saves manpower and time cost, after cleaning, the horizontal arrangement of the sealing turnover plate 30 is realized through the cooperation of the adjusting motor 27, the adjusting worm 32 and the adjusting worm wheel 31, so that the normal sewage treatment is not affected. The cleaning mechanism 12 and the MBR reaction tank 3 in the device exist independently, can be installed and used according to actual needs, and are relatively convenient; and the device is located in the MBR reaction tank 3, which greatly saves the land area.

Claims

1. A MBR membrane sewage treatment device comprising a regulating tank (1), an anaerobic tank (2), a MBR reaction tank (3), a sludge tank (4) and a clear water tank (5), characterized in that: The adjusting pool (1) is provided with a submersible pump (6), the output end of the submersible pump (6) is fixedly connected with a water guide pipe (7), the end of the water guide pipe (7) away from the submersible pump (6) extends into the anaerobic pool (2), the adjacent side walls of the anaerobic pool (2) and the MBR reaction pool (3) are both provided with a water hole (8), the anaerobic pool (2) and the MBR reaction pool (3) are communicated through the two water holes (8), the inner side of the MBR reaction pool (3) is provided with a cleaning mechanism (12) and a sludge pump (13), the inner side of the cleaning mechanism (12) is provided with an MBR curtain type membrane system (18) and a cleaning water pump (35), the output end of the cleaning water pump (35) is fixedly connected with a cleaning pipe (36), the end of the cleaning pipe (36) away from the cleaning water pump (35) extends to the outer side of the cleaning mechanism (12), the sludge pump (13) is located on the outer side of the cleaning mechanism (12), the output end of the sludge pump (13) is fixedly connected with a blow-off pipe (14), the end of the blow-off pipe (14) away from the sludge pump (13) extends into a sludge pool (4), the water outlet end of the MBR curtain type membrane system (18) is connected with a water pump (17), the outer side of the MBR reaction pool (3) is provided with a clean water pump (15), the input end of the clean water pump (15) is communicated with the water pump (17), the output end of the clean water pump (15) is fixedly connected with a water outlet pipe (16), the end of the water outlet pipe (16) away from the clean water pump (15) extends into a clean water pool (5).

2. The MBR membrane wastewater treatment device according to claim 1, characterized in that: The cleaning mechanism (12) comprises a backflushing pump (20) and a bottom plate (28), the upper surface of the bottom plate (28) is fixedly connected with adjusting frames (25) at four corners, a plurality of sealing flip plates (30) are arranged between the front and rear adjusting frames (25) and between the left and right adjusting frames (25), one end of the plurality of sealing flip plates (30) in the clockwise direction is rotatably connected with the outer side wall of the adjacent adjusting frame (25), one end of the plurality of sealing flip plates (30) in the counterclockwise direction is fixedly connected with a connecting rod (37), the end of the connecting rod (37) away from the sealing flip plate (30) penetrates the side wall of the adjacent position adjusting frame (25) and is fixedly connected with an adjusting worm wheel (31), the inner wall of the lower side of the adjusting frame (25) is rotatably connected with an adjusting worm (32), the upper end of the adjusting worm (32) penetrates the upper side wall of the adjusting frame (25) and is fixedly connected with a transmission gear disc (33), and the adjusting worm wheel (31) is matched with the adjusting worm (32).

3. The MBR membrane wastewater treatment device according to claim 2, characterized in that: The upper end of the MBR reaction pool (3) is fixedly connected with an auxiliary frame (26), the upper end of the auxiliary frame (26) is fixedly connected with an adjusting motor (27), the output end of the adjusting motor (27) penetrates the upper side wall of the auxiliary frame (26) and is fixedly connected with a rotating rod (29), the lower end of the rotating rod (29) is fixedly connected with the upper end of one of the transmission gear discs (33), the outer side of the transmission gear disc (33) is provided with a transmission chain (34), and the four transmission gear discs (33) are driven through the transmission chain (34).

4. The MBR membrane wastewater treatment device according to claim 2, characterized in that: The sealing turnover plate (30) is in Z-shaped structure, and a sealing gasket is arranged between the connecting rod (37) and the side wall of the adjusting frame (25).

5. The MBR membrane wastewater treatment device according to claim 2, characterized in that: The output end of the backwashing pump (20) is fixedly connected with a backwashing water inlet pipe (21), one end of the backwashing water inlet pipe (21) away from the backwashing pump (20) is communicated with the water pumping pipe (17), the input end of the backwashing pump (20) is fixedly connected with a backwashing water supply pipe (19), and one end of the backwashing water supply pipe (19) away from the backwashing pump (20) extends into the clean water pool (5).

6. The MBR membrane wastewater treatment device according to claim 1, characterized in that: The inside of the MBR reaction tank (3) is provided with a plurality of aeration pipes (10), a plurality of aeration holes (11) are formed in the side wall of the aeration pipe (10), the outside of the MBR reaction tank (3) is provided with an aeration pump (9), and the plurality of aeration pipes (10) are communicated with the output end of the aeration pump (9).

7. The MBR membrane wastewater treatment device according to claim 1, characterized in that: The outside of the MBR reaction tank (3) is provided with a secondary treatment pump (22), the output end of the secondary treatment pump (22) is fixedly connected with a secondary treatment leading-out pipe (24), one end of the secondary treatment leading-out pipe (24) away from the secondary treatment pump (22) extends above the anaerobic tank (2), the input end of the secondary treatment pump (22) is fixedly connected with a secondary treatment leading-in pipe (23), and one end of the secondary treatment leading-in pipe (23) away from the secondary treatment pump (22) extends into the sludge tank (4).

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