Membrane aeration MABR sewage treatment device

Abstract

The invention provides a membrane aeration MABR sewage treatment device which comprises a base, a treatment box is fixed to the base, a driving motor is fixed to the top of the treatment box, an air inlet pipe is fixed to the side of the driving motor, a supporting pipe is fixed to the air inlet pipe, and the supporting pipe is fixedly installed at the top of the treatment box through a supporting base. And a water inlet pipe is fixed on the side of the treatment box. When the membrane aeration MABR sewage treatment device is used, a membrane assembly drives water to rotate centrifugally, sewage rotates and then moves, gas with oxygen enters a pipeline through a gas inlet hole, gas is blown into the membrane assembly through a gas exhaust hole between the pipeline and a scraping plate, and the gas makes contact with the sewage to complete aeration oxygen supply; oxygen permeates through the membrane assembly and is directly utilized by the biological membrane, sewage at different positions is in rapid and uniform contact with the sewage through the exhaust holes, the rotating seat descends in the later period to generate a gap with the membrane assembly, and sludge can be conveniently discharged in the later period through generation of the gap.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment equipment, and specifically to a membrane aeration MABR sewage treatment device. Background Technique

[0002] The most serious problem in sewage treatment is the excessive nitrogen and phosphorus leading to water eutrophication. In order to avoid water eutrophication in nature, it is necessary to treat domestic sewage or wastewater generated in industrial production. In sewage treatment, the membrane aeration biofilm reactor technology is a new sewage treatment technology that organically combines membrane oxygen supply technology and biofilm water treatment technology. Although the existing membrane aeration biofilm reactor uses MABR membrane technology for sewage treatment, in its reactor, the water is usually in a static or nearly static state, resulting in poor contact between the sewage and the MABR membrane.

[0003] According to a patent document with the publication number CN221544348U, a MABR membrane aeration biological sewage treatment device is disclosed. It includes a treatment tank, a waterproof partition is installed inside the treatment tank, and the waterproof partition is waterproof and sealed with the treatment tank. A filtering component is provided above the waterproof partition, and a drainage hose is installed on the waterproof partition. A treatment inner tank is provided below the waterproof partition, and the treatment inner tank is connected to the treatment tank through an elastic component. The treatment inner tank is connected to the drainage hose. When this technical solution is used, during the sewage treatment process, the treatment inner tank can be in a state of fluctuating up and down, so as to make the sewage better contact with the MABR membrane group, improve the sewage treatment efficiency, and solve the problem of reduced sewage treatment efficiency in the prior art. For the above technical solution, although the sewage can be treated by flowing, the sludge inside cannot be quickly removed after treatment, and in addition, the filtered sewage cannot be quickly discharged during the sewage treatment process, which is inconvenient to use. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a membrane aeration MABR sewage treatment device to solve the problems raised in the above background technique. The structure of the present invention is novel. When in use, the membrane module drives the water to rotate centrifugally. After the sewage rotates, it moves through the air inlet holes to introduce the gas with oxygen into the pipeline. The gas is blown into the membrane module through the exhaust holes between the pipeline and the scraper. The gas contacts the sewage to complete aeration and oxygen supply. The oxygen directly passes through the membrane module and is utilized by the biofilm. Through the exhaust holes, the sewage at different positions can quickly and evenly contact the sewage. Later, the rotating seat descends to generate a gap with the membrane module, and the generation of the gap facilitates the discharge of sludge in the later stage.

[0005] To achieve the above object, the present invention is implemented by the following technical solutions: A membrane aeration MABR sewage treatment device includes a base, on which a treatment tank is fixed. A driving motor is fixed on the top of the treatment tank, and an intake pipe is fixed on the side of the driving motor. A support pipe is fixed on the intake pipe, and the support pipe is fixedly installed on the top of the treatment tank through a support seat. A water inlet pipe is fixed on the side of the treatment tank, and a fixed pipe is fixed at one end of each water inlet pipe. A sewage discharge pipe is fixedly installed at one end of the treatment tank, and a fixed rod is welded inside the treatment tank, and a fixed seat is welded on the fixed rod.

[0006] Further, a rotating column is rotatably installed on the fixed seat, one end of the rotating column is installed on the driving motor, and a ring seat is movably installed at the bottom of the fixed seat.

[0007] Further, the ring seat is fixedly installed at one end of the intake pipe, a pipe is fixed on the ring seat, and a membrane module is movably installed between the pipes.

[0008] Further, a reinforcing plate is fixed on the inner wall of the membrane module, a reinforcing rod is welded on the reinforcing plate, and one end of the reinforcing rod is welded on the rotating column.

[0009] Further, a rotating seat is movably installed at the bottom of the membrane module, a limiting seat is movably installed at the bottom of the rotating seat, and the limiting seat and the rotating seat are connected by a bearing.

[0010] Further, a conical seat and a sealing ring are respectively fixedly installed on the rotating seat, and the sealing ring is in movable contact with the inner wall of the bottom of the membrane module.

[0011] Further, a scraper is fixed on the side of the pipe, exhaust holes are installed between the scrapers, the exhaust holes are opened on the pipe, and an air inlet hole is opened between the pipe and the ring seat.

[0012] Further, a cavity is opened inside the fixed seat, the cavity is connected to the water inlet pipe, and a water inlet is opened between the fixed seat and the cavity.

[0013] Further, a limiting ring is fixed at the bottom of the fixed seat, and the limiting ring is in movable contact with the inner wall of the top of the membrane module.

[0014] Further, a lifting mechanism is installed at the bottom of the limiting seat, and the lifting mechanism is fixedly installed at the bottom of the base and the treatment tank.

[0015] The beneficial effects of the present invention:

[0016] 1. For this membrane aeration MABR sewage treatment device, when in use, the membrane module drives the water to rotate centrifugally. After the sewage rotates, it moves through the air inlet holes, and the gas with oxygen enters the pipeline. Through the exhaust holes between the pipeline and the scraper, air is blown into the membrane module. The gas contacts the sewage to complete aeration and oxygen supply. The oxygen permeates through the membrane module and is directly utilized by the biofilm. Through the exhaust holes, the sewage at different positions can quickly and evenly contact the sewage. Later, the rotating seat descends to generate a gap with the membrane module, and the generation of the gap facilitates the discharge of sludge in the later stage.

[0017] 2. For this membrane aeration MABR sewage treatment device, the sewage inside can quickly pass through the membrane module and be thrown out during the rotation of the membrane module. The thrown sewage enters the treatment tank to accelerate the treatment of sewage. When the membrane module rotates, on the one hand, the scraper blocks the entry of gas. On the other hand, the membrane module rotates on the scraper, which is beneficial to removing the impurities adhered to the surface of the membrane module. Later, the exhaust holes discharge inward, and the gas pushes the impurities on the inner wall of the membrane module to fall off from the inner wall of the membrane module and be discharged, effectively avoiding the influence caused by the blockage of the membrane module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a membrane aeration MABR sewage treatment device of the present invention;

[0019] Figure 2 is a schematic structural diagram of the membrane module of a membrane aeration MABR sewage treatment device of the present invention;

[0020] Figure 3 is a schematic structural diagram of the ring seat of a membrane aeration MABR sewage treatment device of the present invention;

[0021] Figure 4 is a schematic top - sectional view of the ring seat of a membrane aeration MABR sewage treatment device of the present invention;

[0022] Figure 5 is a schematic structural diagram of the conical seat of a membrane aeration MABR sewage treatment device of the present invention;

[0023] Figure 6 is a schematic side - sectional view of the fixed seat of a membrane aeration MABR sewage treatment device of the present invention;

[0024] In the figure: 1, base; 2, treatment tank; 3, sewage discharge pipe; 4, fixed pipe; 5, water inlet pipe; 6, drive motor; 7, support base; 8, support pipe; 9, fixed seat; 10, fixed rod; 11, rotating column; 12, ring seat; 13, membrane module; 14, pipeline; 15, rotating seat; 16, limit seat; 17, lifting mechanism; 18, air inlet pipe; 19, scraper; 20, air inlet hole; 21, exhaust hole; 22, sealing ring; 23, conical seat; 24, cavity; 25, water inlet; 26, limit ring; 27, reinforcing plate; 28, reinforcing rod. Detailed implementation mode

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the detailed implementation mode.

[0026] Please refer to Figures 1 to 6 , the present invention provides a technical solution: a membrane aeration MABR sewage treatment device, including a base 1, a treatment tank 2 is fixed on the base 1, a drive motor 6 is fixed on the top of the treatment tank 2, an air inlet pipe 18 is fixed on the side of the drive motor 6, a support pipe 8 is fixed on the air inlet pipe 18, the support pipe 8 is fixedly installed on the top of the treatment tank 2 through a support base 7, a water inlet pipe 5 is fixed on the side of the treatment tank 2, a fixed pipe 4 is fixed at one end of the water inlet pipe 5, a sewage discharge pipe 3 is fixedly installed at one end of the treatment tank 2, a fixed rod 10 is welded inside the treatment tank 2, a fixed seat 9 is welded on the fixed rod 10, the fixed seat 9 is fixed on the inner wall of the treatment tank 2 through the fixed rod 10, the fixed seat 9 provides a limit support force for the top of the membrane module 13, and sewage is added into the membrane module 13 through the water inlet 25 at the bottom of the fixed seat 9.

[0027] In this embodiment, a rotating column 11 is rotatably installed on the fixed seat 9, one end of the rotating column 11 is installed on the drive motor 6, a ring seat 12 is movably installed at the bottom of the fixed seat 9, the ring seat 12 is fixedly installed at one end of the air inlet pipe 18, a pipeline 14 is fixed on the ring seat 12, a membrane module 13 is movably installed between the pipelines 14, a reinforcing plate 27 is fixed on the inner wall of the membrane module 13, a reinforcing rod 28 is welded on the reinforcing plate 27, one end of the reinforcing rod 28 is welded on the rotating column 11, and the rotating column 11 drives the membrane module 13 to rotate through the reinforcing rod 28 at the same time. The reinforcing plate 27 is an arc-shaped plate, and the arc-shaped plate provides a large-area support for the membrane module 13, effectively avoiding damage to the membrane module 13 caused by torsion.

[0028] In this embodiment, a rotating seat 15 is movably installed at the bottom of the membrane module 13, and a limiting seat 16 is movably installed at the bottom of the rotating seat 15. The limiting seat 16 is connected to the rotating seat 15 through a bearing. A conical seat 23 and a sealing ring 22 are respectively and fixedly installed on the rotating seat 15. The sealing ring 22 is in movable contact with the inner wall of the bottom of the membrane module 13. A scraper 19 is fixed to the side of the pipeline 14. An exhaust hole 21 is installed between the scrapers 19. The exhaust hole 21 is opened on the pipeline 14. An air inlet hole 20 is formed between the pipeline 14 and the ring seat 12. When the membrane module 13 rotates, the scraper 19 contacts the inner wall of the membrane module 13, and the scraper 19 scrapes off the impurities adhered to the outer wall of the membrane module 13.

[0029] In this embodiment, a cavity 24 is opened inside the fixed seat 9. The cavity 24 is connected to the water inlet pipe 5. A water inlet 25 is opened between the fixed seat 9 and the cavity 24. A limiting ring 26 is fixed to the bottom of the fixed seat 9. The limiting ring 26 is in movable contact with the inner wall of the top of the membrane module 13. A lifting mechanism 17 is installed at the bottom of the limiting seat 16. The lifting mechanism 17 is fixedly installed at the bottom of the base 1 and the treatment tank 2. The lifting mechanism 17 is a linear reciprocating electric push rod. The lifting mechanism 17 controls the gap between the rotating seat 15 and the membrane module 13. Adjusting the size of the gap facilitates the discharge of sludge in the later stage.

[0030] When the device is in use, sewage enters the fixed pipe 4, and the sewage enters the cavity 24 inside the fixed seat 9 through the water inlet pipe 5. The sewage is discharged into the inside of the membrane module 13 through the water inlet 25 at the bottom of the cavity 24. An external air supply device is connected to the support pipe 8, and gas enters the inside of the ring seat 12 through the air inlet pipe 18. The gas flows inside the ring seat 12 and enters the inside of the pipe 14 through the air inlet holes 20 while flowing, and is blown towards the membrane module 13 through the exhaust holes 21 on the pipe 14. The scraper 19 provides a shield for the gas, enabling the gas to quickly move towards the inside of the membrane module 13. The gas reacts by contacting the sewage inside the membrane module 13. When reacting, the driving motor 6 is started, and the driving motor 6 drives the membrane module 13 to rotate through the rotating column 11. The rotation of the membrane module 13 makes the sewage flow, and the flowing sewage cooperates with the exhaust holes 21 at different positions, and the discharged gas reacts by contacting the sewage at different positions. The gas blows from the outside to the inside of the membrane module 13, and the gas makes the impurities adhered to the inner wall of the membrane module 13 fall, preventing the blockage of the membrane module 13. The membrane module 13 is a biological membrane reactor. Under the rotation of the membrane module 13, the sewage inside can be quickly filtered through the membrane module 13 and then thrown out, and the thrown sewage is discharged into the treatment tank 2 to accelerate the treatment of sewage. When the membrane module 13 rotates, the scraper 19 is beneficial to removing the impurities adhered to the surface of the membrane module 13. After the sewage is treated inside the membrane module 13, the lifting mechanism 17 is started to drive the limit seat 16 to descend. After the limit seat 16 descends, the bottom of the membrane module 13 is separated from the sealing ring 22. Water is introduced again through the water inlet pipe 5, and the water flow drives the sludge on the inner wall of the membrane module 13 and the sludge on the rotating seat 15 to flow downward. The sludge is discharged from the side of the rotating seat 15 into the inside of the treatment tank 2, and finally the sludge is discharged by the water drive.

[0031] The foregoing shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A membrane aeration MABR sewage treatment device, comprising a base (1), characterized in that: A treatment box (2) is fixed on the base (1), a driving motor (6) is fixed on the top of the treatment box (2), an air intake pipe (18) is fixed on the side of the driving motor (6), a support pipe (8) is fixed on the air intake pipe (18), the support pipe (8) is fixedly mounted on the top of the treatment box (2) via a support seat (7), a water inlet pipe (5) is fixed on the side of the treatment box (2), one end of the water inlet pipe (5) is fixedly mounted with a fixed pipe (4), a sewage pipe (3) is fixedly mounted on one end of the treatment box (2), a fixing rod (10) is welded inside the treatment box (2), and a fixing seat (9) is welded on the fixing rod (10).

2. A membrane aeration MABR sewage treatment device according to claim 1, characterized in that: A rotating column (11) is rotatably mounted on the fixed seat (9), one end of the rotating column (11) is mounted on the driving motor (6), and a ring seat (12) is movably mounted on the bottom of the fixed seat (9).

3. A membrane aeration MABR sewage treatment device according to claim 2, characterized in that: The ring seat (12) is fixedly mounted on one end of an air intake pipe (18); a pipeline (14) is fixed on the ring seat (12); and a membrane assembly (13) is movably mounted between the pipelines (14).

4. A membrane aeration MABR sewage treatment device according to claim 3, characterized in that: A reinforcing plate (27) is fixed on the inner wall of the membrane assembly (13), a reinforcing rod (28) is welded to the reinforcing plate (27), and one end of the reinforcing rod (28) is welded to the rotating column (11).

5. A membrane aeration MABR sewage treatment device according to claim 4, characterized in that: A rotating seat (15) is movably mounted at the bottom of the membrane assembly (13), a limiting seat (16) is movably mounted at the bottom of the rotating seat (15), and the limiting seat (16) is connected to the rotating seat (15) via a bearing.

6. A membrane aeration MABR sewage treatment device according to claim 5, characterized in that: A conical seat (23) and a sealing ring (22) are respectively fixedly mounted on the rotating seat (15), and the sealing ring (22) is in active contact with the bottom inner wall of the membrane assembly (13).

7. A membrane aeration MABR sewage treatment device according to claim 3, characterized in that: A scraper (19) is fixed on the side of the pipeline (14), an exhaust hole (21) is installed between the scrapers (19), the exhaust hole (21) is opened on the pipeline (14), and an air inlet hole (20) is opened between the pipeline (14) and the ring seat (12).

8. A membrane aeration MABR sewage treatment device according to claim 1, characterized in that: A cavity (24) is provided inside the fixing seat (9), the cavity (24) is connected to the water inlet pipe (5), and a water inlet (25) is provided between the fixing seat (9) and the cavity (24).

9. A membrane aeration MABR sewage treatment device according to claim 1, characterized in that: A limiting ring (26) is fixed at the bottom of the fixing seat (9), and the limiting ring (26) is in movably contact with the inner wall of the top of the membrane assembly (13).

10. A membrane aeration MABR sewage treatment device according to claim 5, characterized in that: A lifting mechanism (17) is installed at the bottom of the limiting seat (16), and the lifting mechanism (17) is fixedly installed on the bottom of the base (1) and the processing box (2).

Images