Membrane bioreactor for fine filtration, turbidity reduction and microbial ecological degradation

Abstract

The utility model provides a kind of membrane bioreactor of fine filtration turbidity reduction and microbial ecological degradation, including outer cylinder, sealing cover, liquid inlet pipe, grid and reaction membrane, the top of outer cylinder is fixed with sealing cover, the inside left side of sealing cover is vertically embedded with liquid inlet pipe, the inside of outer cylinder is vertically embedded with grid, the outer wall of grid is fixed with reaction membrane, the inside bottom end of outer cylinder is fixed with limit board, the right side below of outer cylinder is laterally embedded with drain pipe, the left side below of outer cylinder is laterally embedded with cleaning pipe, the front end below of outer cylinder is embedded with inner blowdown pipe, the bottom of outer cylinder is fixed with servo motor, the inside bottom end of outer cylinder is fixed with adapter disc, the middle part of outer cylinder is vertically embedded with cleaning column.The utility model can clean the grid inner wall in membrane bioreactor quickly, the impurity and cleaning fluid cleaned can be discharged along inner blowdown pipe quickly, cleaning grid is more simple, and the fine filtration turbidity reduction and ecological degradation effect of sewage and sundries is better.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage or sludge treatment equipment, and in particular to a membrane bioreactor for fine filtration and turbidity reduction and microbial ecological degradation. Background Technology

[0002] Membrane bioreactors (MBRs) are a novel wastewater treatment system that organically combines membrane separation technology with biological treatment technology. They replace the secondary sedimentation tank at the end of traditional biological treatment processes with membrane modules, maintaining a high concentration of active sludge within the bioreactor and increasing the organic load of biological treatment. This reduces the footprint of wastewater treatment facilities and minimizes residual sludge by maintaining a low sludge load. Wastewater often contains a large amount of debris. To ensure the normal operation of the MBR, various fibers, slag, waste paper, and other debris must be intercepted outside the membrane bioreactor. Therefore, a screen is often installed before the MBR, and the screen residue needs to be cleaned regularly to ensure that wastewater can enter the MBR normally. Currently, cleaning the screen in existing MBRs requires regular manual cleaning, and the cleaning process necessitates the complete disassembly and reassembly of the MBR, wasting significant manpower and resources and making it inconvenient to use. Utility Model Content

[0003] The purpose of this invention is to solve the problems existing in the above-mentioned background technology by proposing a membrane bioreactor for fine filtration and turbidity reduction and microbial ecological degradation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation includes an outer cylinder, a sealing cap, an inlet pipe, a grid, and a reaction membrane. The sealing cap is fixed to the top of the outer cylinder. An inlet pipe is vertically embedded in the left side of the inner interior of the sealing cap. A grid is vertically embedded inside the outer cylinder, and the reaction membrane is fixed to the outer wall of the grid. A limit plate is fixed to the bottom interior of the outer cylinder. A drain pipe is horizontally embedded in the lower right side of the outer cylinder. A cleaning pipe is horizontally embedded in the lower left side of the outer cylinder. An internal drain pipe is embedded in the lower front end of the outer cylinder. A servo motor is fixed to the bottom of the outer cylinder. A transfer plate is fixed to the bottom interior of the outer cylinder. A cleaning column is vertically embedded in the middle of the outer cylinder. A connecting plate is fixed to the lower outer wall of the cleaning column, and a nozzle is fixed to the upper outer wall of the cleaning column.

[0005] Preferably, the internal opening of the limiting plate is provided with a slot, the bottom of the grille is precisely embedded in the slot, and the bottom of the sealing cover is in close contact with the top of the grille.

[0006] Preferably, the servo motor is rotatably connected to the cleaning column via a transmission shaft, and the middle part of the cleaning column is on the same vertical horizontal plane as the middle part of the limiting plate and the grid.

[0007] Preferably, the adapter plate has a hollow disc groove inside, the drain end of the cleaning pipe is connected to the hollow disc groove inside the adapter plate, and the connecting plate below the cleaning column is embedded in the hollow disc groove, the diameter of the connecting plate is smaller than the diameter of the hollow disc groove.

[0008] Preferably, the internal opening of the connecting plate is provided with a liquid inlet channel that communicates with the hollow disc groove and the interior of the cleaning column, and one end of the nozzle communicates with the interior of the cleaning column through the hollow channel.

[0009] Preferably, the drain pipe is connected to the lower right side of the inner cavity of the outer cylinder, and the inner drain pipe is connected to the front middle part of the limiting plate.

[0010] After the wastewater enters the device through the inlet pipe, it passes through the grid and the reaction membrane and is discharged from the drain pipe on the outside of the grid, achieving fine filtration, turbidity reduction, and ecological degradation of wastewater and impurities. The grid filters out and adsorbs impurities in the wastewater. When a large amount of impurities are adsorbed in the grid, cleaning fluid is injected into the cleaning pipe, which then enters the hollow disc groove inside the transfer plate. Subsequently, due to hydraulic pressure, the cleaning fluid enters the cleaning column through the inlet channel to the transfer plate and is then sprayed out from the nozzle of the cleaning column, spraying it onto the inner wall of the grid to rinse it. During the rinsing process, the servo motor drives the cleaning column to rotate through the drive shaft, so that the cleaning column rotates while spraying cleaning fluid to rinse the grid, resulting in fewer dead corners in the cleaning of the grid. At this time, the inner drain pipe opens, and the cleaning fluid and the rinsed impurities are discharged through the inner drain pipe, making the cleaning of the grid simpler and more convenient to use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic cross-sectional view of the overall structure on the right side of this utility model; Figure 4 This is an exploded view of a partial structure of the transfer plate and connecting plate in this utility model.

[0012] Legend: Outer cylinder 1, sealing cap 101, liquid inlet pipe 102, limiting plate 103, grid 104, reaction membrane 105, drain pipe 2, cleaning pipe 3, internal sewage pipe 301, servo motor 4, adapter plate 5, cleaning column 501, connecting plate 502, nozzle 503. Detailed Implementation

[0013] Example 1, referring to Figure 1-4A membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation includes an outer cylinder 1, a sealing cap 101, an inlet pipe 102, a grid 104, and a reaction membrane 105. The sealing cap 101 is fixed to the top of the outer cylinder 1. The inlet pipe 102 is vertically embedded in the left side of the inner side of the sealing cap 101. The grid 104 is vertically embedded in the inner side of the outer cylinder 1. The reaction membrane 105 is fixed to the outer wall of the grid 104. A limit plate 103 is fixed to the bottom of the inner side of the outer cylinder 1. A drain pipe 2 is horizontally embedded in the lower right side of the outer cylinder 1. A cleaning pipe 3 is horizontally embedded in the lower left side of the outer cylinder 1. An inner sewage pipe 301 is embedded in the lower front end of the outer cylinder 1. A servo motor 4 is fixed to the bottom of the outer cylinder 1. A transfer plate 5 is fixed to the bottom of the inner side of the outer cylinder 1. A cleaning column 501 is vertically embedded in the middle of the outer cylinder 1. A connecting plate 502 is fixed to the lower outer wall of the cleaning column 501. A nozzle 503 is fixed to the upper outer wall of the cleaning column 501.

[0014] The servo motor 4 is rotatably connected to the cleaning column 501 via a transmission shaft. The middle part of the cleaning column 501, the middle part of the limiting plate 103, and the middle part of the grid 104 are all on the same vertical horizontal plane. The adapter plate 5 has a hollow disc groove inside. The drain end of the cleaning pipe 3 is connected to the hollow disc groove inside the adapter plate 5. The connecting plate 502 below the cleaning column 501 is embedded in the hollow disc groove. The diameter of the connecting plate 502 is smaller than the diameter of the hollow disc groove. After the wastewater enters the device through the inlet pipe 102, it passes through the grid 104 and the reaction membrane 105 and is discharged from the drain pipe 2 outside the grid 104, achieving fine filtration and turbidity reduction and ecological degradation of wastewater and impurities. The grid 104 filters out and adsorbs impurities in the wastewater. When a large amount of impurities are adsorbed in the grid 104, cleaning liquid is injected into the cleaning pipe 3, so that the cleaning liquid enters the hollow disc groove inside the transfer plate 5 along the cleaning pipe 3. Then, due to hydraulic action, the cleaning liquid enters the interior of the cleaning column 501 through the inlet channel to the connecting plate, and then sprays out from the nozzle 503 of the cleaning column 501, spraying it onto the inner wall of the grid 104 to rinse the inner wall of the grid 104. The connecting plate 502 has an internal opening with a liquid inlet channel that communicates with the hollow disc groove and the interior of the cleaning column 501. One end of the nozzle 503 communicates with the interior of the cleaning column 501 through the hollow channel. The drain pipe 2 is connected to the lower right side of the interior of the outer cylinder 1, and the inner drain pipe 301 is connected to the front end of the middle part of the limiting plate 103. During the rinsing process of the grille 104, the servo motor 4 drives the cleaning column 501 to rotate through the transmission shaft. During the rotation of the cleaning column 501, the connecting plate 502 below its outer wall rotates in the transfer plate 5 at the same time. The cleaning fluid entering the transfer plate 5 can normally enter the cleaning column 501 through the liquid inlet channel of the connecting plate 502, so that the cleaning column 501 rotates and sprays cleaning fluid to rinse the grille 104, resulting in fewer dead corners in the cleaning of the grille 104. When cleaning the screen 104, the inner drain pipe 301 is opened, and the cleaning fluid and the impurities rinsed off are discharged along the inner drain pipe, making the cleaning of the screen 104 simpler and more convenient to use.

[0015] Example 2 differs from Example 1 in that, in this example, the internal opening of the limiting plate 103 is provided with a slot, the bottom of the grille 104 is precisely embedded in the slot, and the bottom of the sealing cover 101 is in close contact with the top of the grille 104. After the grid 104 is embedded in the slot of the limiting plate 103 and the sealing cover 101 is closed, the grid 104 can be limited, thereby improving the stability of the grid 104 and its outer wall reaction membrane 105 during operation.

[0016] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation, comprising an outer cylinder (1), a sealing cap (101), an inlet pipe (102), a grid (104), and a reaction membrane (105), wherein the sealing cap (101) is fixed to the top of the outer cylinder (1), the inlet pipe (102) is vertically embedded in the left side of the inner side of the sealing cap (101), the grid (104) is vertically embedded in the inner side of the outer cylinder (1), and the reaction membrane (105) is fixed to the outer wall of the grid (104), characterized in that, A limiting plate (103) is fixed to the bottom of the inner cylinder (1). A drain pipe (2) is horizontally embedded in the lower right side of the outer cylinder (1). A cleaning pipe (3) is horizontally embedded in the lower left side of the outer cylinder (1). An inner drain pipe (301) is embedded in the lower front end of the outer cylinder (1). A servo motor (4) is fixed to the bottom of the outer cylinder (1). A converter plate (5) is fixed to the bottom of the inner cylinder (1). A cleaning column (501) is vertically embedded in the middle of the outer cylinder (1). A connecting plate (502) is fixed to the lower outer wall of the cleaning column (501). A nozzle (503) is fixed to the upper outer wall of the cleaning column (501).

2. The membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation according to claim 1, characterized in that, The limiting plate (103) has an internal opening with a slot, and the bottom of the grille (104) is embedded in the slot. The bottom of the sealing cover (101) is in close contact with the top of the grille (104).

3. The membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation according to claim 1, characterized in that, The servo motor (4) is rotatably connected to the cleaning column (501) via a transmission shaft. The middle part of the cleaning column (501) is on the same vertical horizontal plane as the middle part of the limiting plate (103) and the grid (104).

4. The membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation according to claim 1, characterized in that, The adapter plate (5) has a hollow disc groove inside. The drain end of the cleaning pipe (3) is connected to the hollow disc groove inside the adapter plate (5). The connecting plate (502) below the cleaning column (501) is embedded in the hollow disc groove. The diameter of the connecting plate (502) is smaller than the diameter of the hollow disc groove.

5. The membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation according to claim 1, characterized in that, The connecting plate (502) has an internal opening with a liquid inlet channel that communicates with the hollow disc groove and the interior of the cleaning column (501). One end of the nozzle (503) communicates with the interior of the cleaning column (501) through the hollow channel.

6. The membrane bioreactor for fine filtration, turbidity reduction, and microbial ecological degradation according to claim 1, characterized in that, The drain pipe (2) is connected to the lower right side of the interior of the outer cylinder (1), and the inner drain pipe (301) is connected to the front end of the middle part of the limiting plate (103).

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