Vibrating MBR membrane device and vibrating MBR membrane sewage treatment system

Abstract

The utility model relates to a vibrating MBR membrane device and a vibrating MBR membrane sewage treatment system, which are characterized in that the vibrating MBR membrane sewage treatment system comprises an anaerobic tank, an anoxic tank, an aerobic tank, an MBR membrane tank and a clear water tank which are sequentially arranged according to a water flow sequence, the anaerobic tank is provided with a water inlet, the clear water tank is provided with a clear water discharge pipe, and the anoxic tank is provided with a water outlet. A vibrating MBR membrane device is arranged in the MBR membrane tank and comprises a rack, a moving frame which is erected at the top of the rack and slides along the rack, an MBR membrane assembly arranged on the moving frame and a crankshaft driving mechanism for driving the moving frame to do reciprocating linear motion. And the MBR membrane tank is also communicated with the anoxic tank through a steam stripping return pipe, and the anoxic tank is communicated with the anaerobic tank through a steam stripping return pipe. According to the utility model, not only is the sewage treatment effect greatly improved, but also the service life of the MBR membrane is prolonged, and the energy consumption is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and specifically to a vibrating MBR membrane device and a vibrating MBR membrane sewage treatment system. Background Art

[0002] As an emerging membrane separation technology in secondary treatment and deep treatment, submerged MBR sewage treatment technology has a broad market prospect in sewage treatment upgrading and recycled water reuse market. Among them, submerged MBR membrane components, as the core components of submerged membrane separation technology, play a key role.

[0003] However, during the sewage treatment process, the submerged MBR membrane assembly will inevitably be contaminated with membranes as it runs, which will lead to blockage and reduced life of the MBR membrane assembly. Therefore, in traditional sewage treatment technologies, air is introduced into the bottom of the submerged membrane assembly through a blower, and the submerged MBR membrane assembly is purged with large bubbles generated by the air to achieve the purpose of reducing membrane contamination. The defects of this method are: 1) High energy consumption: When aerating in this way, the air-water ratio needs to be controlled at 10:1-15:1, the energy consumption of the assembly for aeration is about 0.4kwh per ton of water, and the energy consumption of the blower for purging is relatively high; 2) Affected by the sludge concentration and the aeration form, the MBR membrane assembly often has the problem of uneven aeration, which leads to different degrees of contamination of the MBR membrane assembly, which is difficult to clean, and the rising aeration airflow will also cause the accumulation of hair and other debris on the top of the submerged membrane assembly, thereby affecting the service life of the MBR membrane assembly. 3) Since the MBR membrane components require aeration and cleaning, a large amount of oxygen will inevitably be introduced into the MBR membrane pool. In order to ensure the effect of sewage treatment, it is necessary to set up a three-stage reflux operation, that is, the sewage flows back from the MBR membrane pool to the aerobic pool, the aerobic pool flows back to the anoxic pool, and the anoxic pool flows back to the anaerobic pool. This undoubtedly leads to an increase in reflux energy consumption and reflux costs. Utility Model Content

[0004] The utility model aims to overcome the defects in the prior art and provides a vibrating MBR membrane device and a vibrating MBR membrane sewage treatment system, which can utilize the vibration of the MBR membrane device to remove membrane pollution, thereby solving a series of problems caused by the need for large-scale aeration to the bottom of the MBR membrane assembly in the traditional technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A vibrating MBR membrane device comprises a frame, a moving frame mounted on the top of the frame and sliding along the frame, an MBR membrane assembly arranged on the moving frame, and a crankshaft driving mechanism for driving the moving frame and / or the MBR membrane assembly to perform reciprocating linear motion.

[0007] As a further technical solution, at least one slide rail is arranged on the top of the frame, and a plurality of track wheels matched with the corresponding slide rails are arranged on the moving frame.

[0008] As a further technical solution, the top of the frame is convex to form a protrusion;

[0009] As a further technical solution, the slide rail is arranged on the protrusion;

[0010] A limit piece is arranged on the moving frame through the vertical rod, and the top of the limit piece abuts against the bottom of the protrusion;

[0011] As a further technical solution, the limiting member adopts a limiting wheel, and the limiting wheel is rotatably arranged on the vertical rod.

[0012] As a further technical solution, the crankshaft drive mechanism includes a motor fixedly mounted on the frame, a coupling and a crankshaft arranged on the motor rotation output shaft, a connecting rod hinged to the moving frame through a first pin, and the crankshaft and the connecting rod are hinged through a second pin.

[0013] A vibrating MBR membrane sewage treatment system comprises an anaerobic tank, an anoxic tank, an aerobic tank, an MBR membrane tank and a clean water tank arranged in sequence according to the water flow order, the anaerobic tank is provided with a water inlet, the water inlet is provided with a water inlet valve, the clean water tank is provided with a clean water discharge pipe,

[0014] The MBR membrane pool is provided with the vibrating MBR membrane device.

[0015] The MBR membrane pool is also connected to the anoxic pool, and the anoxic pool is connected to the anaerobic pool through a stripping reflux pipe.

[0016] As a further technical solution, an aeration head is provided in both the anoxic tank and the aerobic tank, and the aeration head is connected to an aeration fan through an aeration branch pipe 1 and an aeration main pipe;

[0017] As a further technical solution, the stripping reflux pipe is connected to the aeration fan through the aeration branch pipe 2 and the aeration main pipe;

[0018] As a further technical solution, aeration valves are provided on the aeration main pipe and the aeration branch pipe 2.

[0019] As a further technical solution, partitions are provided between the anaerobic tank and the anoxic tank, the anoxic tank and the aerobic tank, and the aerobic tank and the MBR membrane tank. The partitions are provided with flow ports. The flow ports of the partition between the anaerobic tank and the anoxic tank and the partition between the aerobic tank and the MBR membrane tank are both located below the corresponding partitions, and the flow ports of the partition between the anoxic tank and the aerobic tank are located above the corresponding partitions.

[0020] As a further technical solution, the vibrating MBR device in the MBR membrane pool is connected to the clean water tank through a water flow pipe, and the water flow pipe is provided with a pressure transmitter, a water production automatic valve, a first valve, a water production pump, a second valve and an electromagnetic flowmeter in sequence according to the water flow order.

[0021] As a further technical solution, the clean water tank and the water pipe are also connected through a backwash pipe, one end of the backwash pipe is arranged at the lower part of the clean water tank, and the other end is arranged between the pressure transmitter and the water production automatic valve on the water pipe;

[0022] As a further technical solution, the backwash pipeline is provided with a third valve, a backwash pump, a fourth valve, and an automatic backwash valve in sequence according to the water flow order.

[0023] As a further technical solution, according to the water flow direction, the end of the aerobic pool is also connected to a PAC medicine box through a dosing pipeline, and a metering pump is provided on the dosing pipeline;

[0024] As a further technical solution, the anoxic tank and the MBR membrane tank are also connected to a sludge tank through corresponding sludge discharge branch pipes and sludge discharge main pipes;

[0025] As a further technical solution, an equipment room is also provided, in which the pressure transmitter, water production automatic valve, first valve, water production pump, second valve and electromagnetic flowmeter on the water flow pipeline, the third valve, backwash pump, fourth valve, backwash automatic valve on the backwash pipeline, and the PAC medicine box and metering pump are all arranged. The PAC agent of the utility model enters the end of the aerobic pool, enters the MBR membrane pool after being stirred by the airflow, thereby improving the sedimentation performance of the MBR membrane pool, making the sludge concentration of the upper layer of the MBR membrane pool lower than that of the middle and lower layers, and under the operation of lower sludge concentration, the operation flux of the vibrating membrane equipment is improved.

[0026] As a further technical solution, the anoxic tank and the MBR membrane tank are also provided with water inlets and water inlet valves, and the water inlets on the anaerobic tank, the anoxic tank and the MBR membrane tank are all connected to the sewage inlet pipe.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] 1) The utility model breaks the limitation of the prior art that aeration is used to flush the MBR membrane assembly, and the MBR membrane assembly is set to a vibrating type. During operation, with the reciprocating motion of the MBR membrane assembly, the membrane wire surface of the MBR membrane assembly forms a relative motion with the water flow. When the flow velocity on the membrane wire surface is low, the water flow relies on the inertial force to shear the membrane wire surface, thereby improving the anti-pollution performance of the membrane bioreactor, slowing down the concentration polarization phenomenon on the membrane wire surface, and at the same time improving the operating flux, reducing the operating energy consumption, and prolonging the service life of the MBR membrane assembly.

[0029] 2) Due to the use of vibrating MBR membrane components, the utility model saves a lot of aeration operations in the MBR membrane pool and improves the traditional pump reflux into steam stripping reflux. Therefore, compared with the traditional technology, the oxygen in the MBR membrane pool only comes from the air overflowed by the gas reflux, which greatly reduces the oxygen content of the MBR membrane pool. On the one hand, it improves the sewage treatment effect. On the other hand, it also saves the reflux of the MBR membrane pool to the aerobic pool, and can directly return the sewage in the MBR membrane pool to the anoxic pool. Therefore, compared with the traditional technology, the three-stage reflux is reduced to two-stage reflux, reducing the energy consumption and cost due to reflux. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of a vibrating MBR membrane device in one embodiment of the utility model;

[0031] Figure 2 for Figure 1 A magnified image of point A;

[0032] Figure 3 This is a schematic diagram of the structure of a vibrating MBR membrane sewage treatment system in one embodiment of the utility model;

[0033] Figure 4 A schematic structural diagram of a vibrating MBR membrane sewage treatment system in another embodiment of the utility model;

[0034] In the figure, 1, frame, 2, moving frame, 3, MBR membrane assembly, 4, slide rail, 5, track wheel, 6, protrusion; 7, limit wheel, 8, vertical pole, 9, motor, 10, coupling, 11, crankshaft, 12, pin shaft 2, 13, connecting rod, 14, anaerobic tank, 15, anoxic tank, 16, aerobic tank, 17, MBR membrane tank, 18, clean water tank, 19, water inlet, 20, water inlet valve, 21, clean water discharge pipe, 22, stripping reflux pipe, 23, aeration head, 24, aeration branch pipe 1, 25, aeration main pipe, 26, aeration fan, 27, aeration branch pipe 2, 28, aeration valve, 29, Partition, 30, flow port, 31, water pipe, 32, pressure transmitter, 33, water production automatic valve, 34, first valve, 35, water production pump, 36, second valve, 37, electromagnetic flowmeter, 38, backwash pipe, 39, third valve, 40, backwash pump, 41, fourth valve, 42, backwash automatic valve, 43, PAC medicine box, 44, metering pump, 45, sludge branch pipe, 46, sludge main pipe, 47, sludge valve, 48, sewage inlet pipe, 49, vibrating MBR device, 50, dosing pipe, 51, equipment room, 52, overflow port, 53, pin one, 54, inverter. DETAILED DESCRIPTION

[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention will be described in further detail below with reference to the accompanying drawings. Example 1

[0039] like Figure 1-2 An embodiment of a vibrating MBR membrane device of the utility model shown includes a frame 1, a moving frame 2 mounted on the top of the frame 1 and sliding along the frame 1, an MBR membrane assembly 3 arranged on the moving frame 2, and a crankshaft 11 driving mechanism for driving the moving frame 2 and / or the MBR membrane assembly 3 to perform reciprocating linear motion. The utility model converts the rotation of the motor 9 into the reciprocating motion of the membrane assembly through the driving mechanism, so that during the reciprocating motion of the membrane assembly, the membrane filament surface of the MBR membrane assembly 3 forms a relative motion with the water flow. When the flow velocity on the membrane filament surface is low, the water flow shears the membrane filament surface by inertial force, thereby improving the anti-pollution performance of the membrane bioreactor, slowing down the concentration polarization phenomenon on the membrane filament surface, and at the same time improving the operating flux, reducing the operating energy consumption, and increasing the service life of the MBR membrane assembly 3. The key point of the anti-pollution mechanism of the practical vibrating MBR membrane device is that the MBR membrane performs regular reciprocating operation, so that the MBR membrane can be sheared by the water flow in the width direction. Under the shearing action of the water flow, the membrane scrubbing effect is improved and the membrane scrubbing is made more uniform. In addition, the reciprocating operation cycle can be adjusted to meet different working conditions. The MBR membrane assembly 3 of the utility model is a prior art, and its specific structure is not repeated here.

[0040] As an embodiment of a vibrating MBR membrane device of the utility model, at least one slide rail 4 is arranged on the top of the frame 1, and a plurality of track wheels 5 adapted to the corresponding slide rail 4 are arranged on the motion frame 2. The track wheel 5 can be divided into double-sided wheels, single-sided wheels or edgeless wheels according to the form, or can be a conical wheel similar to a train wheel, or can be divided into 45 steel, 40Cr, stainless steel or nylon according to the material, but the material is not limited thereto. The setting of the slide rail 4 fixes the movement track of the MBR membrane assembly 3, facilitates the formation of shear force with the water flow during the movement of the MBR membrane assembly 3, and improves its anti-pollution effect.

[0041] As an embodiment of a vibrating MBR membrane device of the utility model, the top of the frame 1 is convex to form a protrusion 6; the slide rail 4 is arranged on the protrusion 6;

[0042] As an embodiment of a vibrating MBR membrane device of the utility model, a limiting member is arranged on the moving frame 2 through the vertical rod 8, and the top of the limiting member abuts against the bottom of the protrusion 6; the setting of the limiting member maintains the balance of the moving frame 2 and prevents the running frame from warping up.

[0043] As an embodiment of a vibrating MBR membrane device of the utility model, the limiting member is a limiting wheel 7 , and the limiting wheel 7 is rotatably arranged on the vertical rod 8 .

[0044] As an embodiment of a vibrating MBR membrane device of the utility model, the crankshaft 11 driving mechanism includes a motor 9 fixedly arranged on the frame 1, a coupling 10 and a crankshaft 11 arranged on the rotating output shaft of the motor 9, and a connecting rod 13 hinged to the moving frame 2 through a pin 1 53, and the crankshaft 11 is hinged to the connecting rod 13 through a pin 2 12. The motor 9 adopts a reduction motor 9, and the reduction motor 9 and the crankshaft 11 are connected through a coupling 10. The coupling 10 can be an elastic pin coupling 10, a rigid flange coupling 10, a plum blossom coupling 10, and a diaphragm coupling 10; the material can be carbon steel, alloy steel, stainless steel, etc. Furthermore, the reduction motor 9 and the crankshaft 11 can be connected to the coupling 10 through a B-type or C-type flat key to achieve synchronous circumferential rotation. The crankshaft 11 is a split structure; the material of the crankshaft 11 can be spheroidal cast iron, alloy steel, stainless steel, etc. Example 2

[0045] like Figure 1-3 An embodiment of a vibrating MBR membrane sewage treatment system shown in the figure comprises an anaerobic tank 14, an anoxic tank 15, an aerobic tank 16, an MBR membrane tank 17 and a clean water tank 18 arranged in sequence according to the water flow order. The anaerobic tank 14 is provided with a water inlet 19, and the water inlet 19 is provided with a water inlet valve 20. The clean water tank 18 is provided with a clean water discharge pipe 21.

[0046] The MBR membrane pool 17 is provided with a vibrating MBR membrane device, which includes a frame 1, a moving frame 2 mounted on the top of the frame 1 and sliding along the frame 1, an MBR membrane assembly 3 arranged on the moving frame 2, and a crankshaft 11 driving mechanism for driving the moving frame 2 and / or the MBR membrane assembly 3 to perform reciprocating linear motion;

[0047] The MBR membrane pool 17 is also connected to the anoxic pool 15 , and the anoxic pool 15 is connected to the anaerobic pool 14 via a stripping reflux pipe 22 .

[0048] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, the amplitude of the MBR membrane in the vibrating MBR membrane device is 50mm-100mm, and the frequency can be adjusted in real time according to the transmembrane pressure difference feedback signal to keep its frequency at 0.3-0.7Hz. In the actual operation process, the transmembrane pressure difference of the vibrating MBR membrane device increases, the frequency increases, and the reciprocating cycle of the vibrating MBR membrane device is shortened to reduce membrane pollution as much as possible.

[0049] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, at least one slide rail 4 is arranged on the top of the frame 1, and a plurality of track wheels 5 adapted to the corresponding slide rail 4 are arranged on the motion frame 2. The setting of the slide rail 4 fixes the motion track of the MBR membrane assembly 3, facilitates the formation of shear force between the MBR membrane assembly 3 and the water flow during the motion process, and improves its anti-pollution effect.

[0050] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, the top of the frame 1 is convex to form a protrusion 6; the slide rail 4 is arranged on the protrusion 6;

[0051] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, a limiting member is arranged on the moving frame 2 through the vertical rod 8, and the top of the limiting member abuts against the bottom of the protrusion 6; the setting of the limiting member avoids operation failure caused by the MBR membrane assembly 3 being shaken upward and separated from the slide rail 4 during operation.

[0052] As an embodiment of the vibrating MBR membrane sewage treatment system of the utility model, the limiting member is a limiting wheel 7 , and the limiting wheel 7 is rotatably arranged on the vertical rod 8 .

[0053] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, the crankshaft 11 driving mechanism includes a motor 9 fixedly mounted on the frame 1, a coupling 10 and a crankshaft 11 arranged on the rotating output shaft of the motor 9, a connecting rod 13 hinged to the moving frame 2 through a pin 1 53, and the crankshaft 11 and the connecting rod 13 are hinged through a pin 2 12.

[0054] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, the motor 9 is also connected to a frequency converter 54, and the frequency converter 54 is used to adjust the speed of the motor 9, thereby adjusting the period and frequency of the reciprocating motion of the MBR membrane assembly 3 to adapt to different working conditions.

[0055] As an embodiment of a vibrating MBR membrane wastewater treatment system of the utility model, when the MBR membrane assembly 3 is cleaned online, the vibrating MBR membrane device is manually opened and reciprocated, which is conducive to better efficacy of the PAC agent.

[0056] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, an aeration head 23 is provided in both the anoxic tank 15 and the aerobic tank 16, and the aeration head 23 is connected to an aeration fan 26 through an aeration branch pipe 24 and an aeration main pipe 25;

[0057] The stripping reflux pipe 22 is connected to the aeration fan 26 through the aeration branch pipe 27 and the aeration main pipe 25;

[0058] The aeration main pipe 25 and the aeration branch pipe 27 are provided with an aeration valve 28 .

[0059] The utility model adopts the stripping reflux pipe 22 to reflux from the MBR membrane pool 17 to the anoxic pool 15 and from the anoxic pool 15 to the anaerobic pool 14. The reflux flow rate can be adjusted by adjusting the amount of gas entering the reflux pipe 55. The gas reflux does not require a pump, which saves energy.

[0060] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, a partition 29 is arranged between the anaerobic tank 14 and the anoxic tank 15, the anoxic tank 15 and the aerobic tank 16, and the aerobic tank 16 and the MBR membrane tank 17. The partition 29 is provided with an overflow port 30. The overflow port 30 of the partition 29 between the anaerobic tank 14 and the anoxic tank 15 and the partition 29 between the aerobic tank 16 and the MBR membrane tank 17 are all located below the corresponding partition 29, and the overflow port 30 of the partition 29 between the anoxic tank 15 and the aerobic tank 16 is located above the corresponding partition 29.

[0061] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, the vibrating MBR device 49 in the MBR membrane pool is connected to the clean water pool 18 through a water pipe 31, and the water pipe 31 is provided with a pressure transmitter 32, a water production automatic valve 33, a first valve 34, a water production pump 35, a second valve 36 and an electromagnetic flowmeter 37 in sequence according to the water flow order;

[0062] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, the clean water tank 18 and the water pipe 31 are also connected through a backwash pipe 38, one end of the backwash pipe 38 is arranged at the lower part of the clean water tank 18, and the other end is arranged between the pressure transmitter 32 and the water production automatic valve 33 on the water pipe 31;

[0063] The backwash pipe 38 is provided with a third valve 39, a backwash pump 40, a fourth valve 41, and an automatic backwash valve 42 in sequence according to the water flow. After the MBR membrane assembly 3 has been running for a certain period of time, it needs to be flushed online. At this time, the valve of the backwash pipe 38 is opened to flush the MBR assembly. During the backwashing process, the MBR membrane assembly 3 starts the vibration mode, which can improve the scrubbing effect of the MBR membrane assembly 3.

[0064] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, according to the water flow direction, the end of the aerobic pool 16 is also connected to a PAC medicine box 43 through a dosing pipe 50, and a metering pump 44 is provided on the dosing pipe 50;

[0065] As an embodiment of the utility model of a vibrating MBR membrane sewage treatment system, an equipment room 51 is also provided, and the pressure transmitter 32, the water production automatic valve 33, the first valve 34, the water production pump 35, the second valve 36 and the electromagnetic flowmeter 37 on the water pipe 31, the third valve 39, the backwash pump 40, the fourth valve 41, the backwash automatic valve 42 on the backwash pipe 38, and the PAC medicine box 43 and the metering pump 44 are all arranged in the equipment room 51. The PAC agent of the utility model enters the end of the aerobic pool 16, and enters the MBR membrane pool 17 after being stirred by the airflow, thereby improving the sedimentation performance of the MBR membrane pool 17, making the sludge concentration of the upper layer of the MBR membrane pool 17 lower than that of the middle and lower layers, and under the operation of lower sludge concentration, the operation flux of the vibrating membrane equipment is improved.

[0066] As an embodiment of a vibrating MBR membrane sewage treatment system of the utility model, the anoxic tank 15 and the MBR membrane tank are also connected to a sludge tank through corresponding sludge discharge branch pipes 45 and sludge discharge main pipes 46 .

[0067] As an embodiment of the vibrating MBR membrane sewage treatment system of the utility model, the anaerobic tank 15 is also provided with an overflow port. Example 3

[0068] Same as Example 2, except that Figure 4 As shown, the anoxic tank 15 and the MBR membrane tank are also provided with a water inlet 19 and a water inlet valve 20, and the water inlet 19 of the anaerobic tank 14, the anoxic tank 15 and the MBR membrane tank 17 are all connected to the sewage inlet pipe 48. The utility model is provided with a water inlet 19 on the anaerobic tank 14, the anoxic tank 15 and the membrane tank. When water is inletted, the water inlet amount of the anaerobic tank 14, the water-deficient tank and the MBR membrane tank is controlled to be 5:1:1. The vibrating MBR membrane sewage treatment system of Example 3 adopts three-point water inlet, which provides a carbon source for denitrification of the anoxic tank 15 and the MBR membrane tank, and can improve the effect of sewage treatment.

[0069] The above-mentioned embodiments are only preferred embodiments of the present invention, and are not exhaustive of the feasible implementations of the present invention. For those skilled in the art, any obvious changes made to the present invention without departing from the principle and spirit of the present invention should be considered to be included in the scope of protection of the claims of the present invention.

Claims

1. A vibrating MBR membrane device, characterized in that: The invention comprises a frame (1), a moving frame (2) mounted on the top of the frame (1) and sliding along the frame (1), an MBR membrane assembly (3) arranged on the moving frame (2), and a crankshaft driving mechanism for driving the moving frame (2) and / or the MBR membrane assembly (3) to perform reciprocating linear motion.

2. A vibrating MBR membrane device according to claim 1, characterized in that: At least one slide rail (4) is arranged on the top of the frame (1), and a plurality of track wheels (5) matching the corresponding slide rails (4) are arranged on the moving frame (2).

3. A vibrating MBR membrane device according to claim 1, characterized in that: The top of the frame (1) is convex to form a protrusion (6); A limiting member is arranged on the moving frame (2) via a vertical rod (8), and the top of the limiting member abuts against the bottom of the protrusion (6).

4. A vibrating MBR membrane device according to claim 1, characterized in that: The crankshaft drive mechanism comprises a motor (9) fixedly mounted on the frame (1), a coupling (10) and a crankshaft (11) mounted on a rotation output shaft of the motor (9), a connecting rod (13) hingedly connected to the moving frame (2) via a first pin (53), and the crankshaft (11) and the connecting rod (13) are hingedly connected via a second pin (12).

5. A vibrating MBR membrane sewage treatment system, characterized in that: The invention comprises an anaerobic tank (14), an anoxic tank (15), an aerobic tank (16), an MBR membrane tank (17) and a clean water tank (18) which are arranged in sequence according to the water flow. The anaerobic tank (14) is provided with a water inlet (19), the water inlet (19) is provided with a water inlet valve (20), and the clean water tank (18) is provided with a clean water discharge pipe (21). The MBR membrane pool (17) is provided with a vibrating MBR membrane device according to any one of claims 1 to 4, The MBR membrane pool (17) is also connected to the anoxic pool (15), and the anoxic pool (15) is also connected to the anaerobic pool (14), all via a stripping reflux pipe (22).

6. A vibrating MBR membrane sewage treatment system according to claim 5, characterized in that: An aeration head (23) is provided in each of the anoxic tank (15) and the aerobic tank (16), and the aeration head (23) is connected to an aeration fan (26) via an aeration branch pipe 1 (24) and an aeration main pipe (25); The stripping reflux pipe (22) is connected to the aeration fan (26) via the aeration branch pipe 2 (27) and the aeration main pipe (25); Aeration valves (28) are provided on the aeration main pipe (25) and the second aeration branch pipe (27).

7. A vibrating MBR membrane sewage treatment system according to claim 5, characterized in that: A partition (29) is provided between the anaerobic tank (14) and the anoxic tank (15), between the anoxic tank (15) and the aerobic tank (16), and between the aerobic tank (16) and the MBR membrane tank (17). A flow opening (30) is provided on the partition (29). The flow openings (30) of the partition (29) between the anaerobic tank (14) and the anoxic tank (15), and between the aerobic tank (16) and the MBR membrane tank (17) are both located below the corresponding partition (29), and the flow opening (30) of the partition (29) between the anoxic tank (15) and the aerobic tank (16) is located above the corresponding partition (29).

8. A vibrating MBR membrane sewage treatment system according to claim 5, characterized in that: The vibrating MBR device (49) in the MBR membrane pool is connected to the clean water pool (18) via a water flow pipe (31), and a pressure transmitter (32), a water production automatic valve (33), a first valve (34), a water production pump (35), a second valve (36) and an electromagnetic flow meter (37) are arranged on the water flow pipe (31) in sequence according to the water flow order.

9. A vibrating MBR membrane sewage treatment system according to claim 5, characterized in that: In terms of water flow direction, the end of the aerobic pool (16) is also connected to a PAC medicine box (43) via a medicine dosing pipeline (50), and a metering pump (44) is provided on the medicine dosing pipeline (50); The anoxic tank (15) and the MBR membrane tank are also connected to a sludge tank via corresponding sludge discharge branch pipes (45) and sludge discharge main pipes (46).

10. A vibrating MBR membrane sewage treatment system according to claim 5, characterized in that: The anoxic tank (15) and the MBR membrane tank (17) are also provided with a water inlet (19) and a water inlet valve (20). The water inlets (19) on the anaerobic tank (14), the anoxic tank (15) and the MBR membrane tank (17) are all connected to the sewage inlet pipe (48).

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