A biological membrane filter device for sewage treatment

Abstract

The utility model relates to sewage treatment technical field, and disclose a kind of biological membrane filter device for sewage treatment, including sewage treatment tank, the inside of sewage treatment tank is movably connected with mixing mechanism, the side of sewage treatment tank is fixedly connected with filter membrane assembly, the inside of sewage treatment tank is fixedly connected with detection mechanism in a corner, the side of sewage treatment tank close to filter membrane assembly is fixedly connected with drain pipe;The utility model is in by the gas in aerator into sealing ring by gas pipe, servo motor starts and drives rotating shaft rotation, rotating shaft rotates by connecting rod and drives gas passage rotation, gas in sealing ring enters gas passage, gas passage drives stirring vane rotation when rotating, gas enters sewage treatment tank by the exhaust hole on the side of stirring vane, more fully mixes gas with sewage in sewage treatment tank, improves filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically to a biofilm filtration device for wastewater treatment. Background Technology

[0002] With the acceleration of industrialization and urbanization, the volume of wastewater discharged globally has surged, and its composition has become increasingly complex, posing a severe challenge to traditional wastewater treatment technologies. While the activated sludge process is a mainstream technology and widely used, it suffers from inherent drawbacks such as large land area requirements, high residual sludge production, sensitivity to shock loads, limited nitrogen and phosphorus removal efficiency, and complex operation and management.

[0003] Biofilm technology exhibits significant advantages due to the fact that microorganisms attach and grow on the surface of a fixed carrier. When biofilms are used, the biomass within them is enormous and highly enriched, and the microbial community structure is more stable and more diverse. Therefore, they have strong resistance to water quality and quantity shocks, low sludge production, and the potential for simultaneous nitrification and denitrification.

[0004] Currently, when using biofilms for wastewater filtration, the biofilm needs to be fixed and aerated during its growth, and the wastewater needs to be aerated and mixed before filtration. However, the current aeration and mixing methods are not uniform enough, which reduces the filtration effect of the biofilm. Furthermore, it is difficult to monitor the filtration process effectively during biofilm filtration. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a biofilm filtration device for sewage treatment to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a biofilm filtration device for sewage treatment, comprising a sewage treatment tank, a mixing mechanism movably connected inside the sewage treatment tank, a filter membrane assembly fixedly connected to the side of the sewage treatment tank, a detection mechanism fixedly connected to one corner inside the sewage treatment tank, and a drain pipe fixedly connected to the side of the sewage treatment tank near the filter membrane assembly; the mixing mechanism includes a servo motor providing power, a rotating shaft fixedly connected to the top of the servo motor, a sealing ring movably connected to the side of the rotating shaft, a gas pipe fixedly connected to the side of the sealing ring, an aerator fixedly connected to the side of the gas pipe away from the sealing ring, a gas channel movably connected to the top of the inside of the sealing ring, and a stirring blade fixedly connected to the side of the gas channel; the gas in the aerator passes through the gas pipe, the sealing ring, and the gas channel and is discharged from the stirring blade; the stirring blade has exhaust holes on its side, which are equidistantly distributed on the side, top, and bottom of the stirring blade.

[0007] Furthermore, a support leg is fixedly connected to the bottom of the sewage treatment tank, and the detection mechanism is located inside the sewage treatment tank near the side of the filter membrane assembly. The sewage filtered by the filter membrane assembly is discharged from the drain pipe.

[0008] Furthermore, the stirring blades are divided into two groups, with four stirring blades in each group. The four stirring blades are distributed at equal angles on the side of the gas channel. A support plate is movably connected to the side of the gas channel, and the side of the support plate away from the gas channel is fixedly connected to the interior of the sewage treatment tank.

[0009] Furthermore, a connecting rod is fixedly connected to the top end of the rotating shaft, and the top end of the connecting rod is fixedly connected to the bottom end of the gas channel. The sealing ring seals the connecting rod.

[0010] Furthermore, the detection mechanism includes a fixed plate for support, a threaded rod is movably connected inside the fixed plate, a movable block is threadedly connected to the side of the threaded rod, and a handwheel is fixedly connected to the top of the threaded rod.

[0011] Furthermore, among the four sides of the movable block, two adjacent sides are in contact with two sides at the included angle, and the other two sides of the movable block are respectively fixedly connected to a first detector and a second detector.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model includes a sealing ring, an aerator, a gas channel, and stirring blades. Before filtration, the gas in the aerator enters the sealing ring through a gas pipe. After the servo motor starts, it drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the gas channel to rotate through the connecting rod. The gas in the sealing ring enters the gas channel. When the gas channel rotates, it drives the stirring blades to rotate. The gas enters the sewage treatment tank through the exhaust holes on the side of the stirring blades, which mixes the gas more thoroughly with the sewage in the sewage treatment tank, thereby improving the filtration effect.

[0014] 2. This utility model includes a threaded rod, a handwheel, a moving block, and a first detector. When the filter membrane assembly is performing filtration, rotating the handwheel causes the threaded rod to rotate, which in turn causes the moving block to move up and down on its side. The moving block, in turn, causes the first and second detectors to move up and down, thereby detecting the filtration status at different depths and positions within the wastewater treatment tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the sewage treatment tank of this utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of the hybrid mechanism of this utility model.

[0018] Figure 4 This is an exploded structural diagram of the hybrid mechanism of this utility model.

[0019] Figure 5 This is a schematic diagram of the detection mechanism structure of this utility model.

[0020] The attached figures are labeled as follows: 1. Wastewater treatment tank; 2. Support leg; 3. Mixing mechanism; 301. Servo motor; 302. Rotating shaft; 303. Sealing ring; 304. Gas pipe; 305. Aerator; 306. Connecting rod; 307. Gas channel; 308. Stirring blade; 309. Support plate; 4. Filter membrane assembly; 5. Detection mechanism; 501. Fixing plate; 502. Threaded rod; 503. Handwheel; 504. Moving block; 505. First detector; 506. Second detector; 6. Drainage pipe. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figure 1 and Figure 2 This utility model provides a biofilm filtration device for sewage treatment, including a sewage treatment tank 1, a mixing mechanism 3 movably connected inside the sewage treatment tank 1, a filter membrane assembly 4 fixedly connected to the side of the sewage treatment tank 1, a detection mechanism 5 fixedly connected to one corner inside the sewage treatment tank 1, a drain pipe 6 fixedly connected to the side of the sewage treatment tank 1 near the filter membrane assembly 4, a support leg 2 fixedly connected to the bottom of the sewage treatment tank 1, the detection mechanism 5 is located inside the sewage treatment tank 1 near the side of the filter membrane assembly 4, and the sewage filtered by the filter membrane assembly 4 is discharged from the drain pipe 6.

[0023] In this embodiment, the wastewater filtered by the filter membrane assembly 4 is discharged from the drain pipe 6, and the detection mechanism 5 is located inside the wastewater treatment tank 1 near the side of the filter membrane assembly 4, so that the detection mechanism 5 can better monitor the filter membrane assembly 4 and ensure the smooth progress of the filtration process.

[0024] Reference Figure 3 and Figure 4The mixing mechanism 3 includes a servo motor 301 that provides power. A rotating shaft 302 is fixedly connected to the top of the servo motor 301. A sealing ring 303 is movably connected to the side of the rotating shaft 302. A gas pipe 304 is fixedly connected to the side of the sealing ring 303. An aerator 305 is fixedly connected to the side of the gas pipe 304 away from the sealing ring 303. A gas channel 307 is movably connected to the top of the inside of the sealing ring 303. An agitator blade 308 is fixedly connected to the side of the gas channel 307. The gas in the aerator 305 passes through the gas pipe 304, the sealing ring 303, and the gas channel 307 before being discharged from the agitator blade 308. The side of the 08 has an exhaust hole. The exhaust holes of the stirring blade 308 are equidistantly distributed on the side, top and bottom of the stirring blade 308. The stirring blade 308 is divided into two groups, with four stirring blades in each group. The four stirring blades 308 are distributed at equal angles on the side of the gas channel 307. The side of the gas channel 307 is movably connected to the support plate 309. The side of the support plate 309 away from the gas channel 307 is fixedly connected to the inside of the sewage treatment tank 1. The top of the rotating shaft 302 is fixedly connected to the connecting rod 306. The top of the connecting rod 306 is fixedly connected to the bottom of the gas channel 307. The sealing ring 303 seals the connecting rod 306.

[0025] In this embodiment, after the aerator 305 starts, it supplies gas into the gas pipe 304. The gas enters the sealing ring 303 through the gas pipe 304. When the servo motor 301 starts, it drives the rotating shaft 302 to rotate. When the rotating shaft 302 rotates, it drives the gas channel 307 to rotate through the connecting rod 306. The connecting rod 306 connects the rotating shaft 302 and the gas channel 307. Therefore, the gas in the sealing ring 303 will enter the gas channel 307 through the space between the rotating shaft 302 and the gas channel 307. The sealing ring 303 seals the space between the rotating shaft 302 and the gas channel 307. The gas entering the gas channel 307 enters the stirring blade 308. The gas is finally discharged through the exhaust port of the stirring blade 308. The exhaust ports of the stirring blade 308 are equidistantly distributed on the side, top, and bottom of the stirring blade 308. When the stirring blade 308 discharges the gas, it will rotate, thereby discharging the gas to different positions and mixing it at the same time, improving the filtration effect of the filter membrane assembly 4.

[0026] Reference Figure 5 The testing mechanism 5 includes a fixed plate 501 for support, a threaded rod 502 is movably connected inside the fixed plate 501, a movable block 504 is threadedly connected to the side of the threaded rod 502, a handwheel 503 is fixedly connected to the top of the threaded rod 502, two adjacent sides of the movable block 504 are in contact with two sides at the included angle, and a first testing instrument 505 and a second testing instrument 506 are fixedly connected to the other two sides of the movable block 504 respectively.

[0027] In this embodiment, when the threaded rod 502 rotates, the moving block 504 moves up and down on the side of the threaded rod 502. When the moving block 504 moves up and down, it drives the first detector 505 and the second detector 506 to move up and down. The first detector 505 and the second detector 506 can monitor different positions. When the first detector 505 and the second detector 506 move up and down, they can monitor different depths. The two adjacent sides of the moving block 504 are in contact with the two sides at the included angle, ensuring that the moving block 504 can move up and down.

[0028] The working principle of this utility model is as follows: Before the filtration of the filter membrane assembly 4, sewage is discharged into the sewage treatment tank 1. At this time, the aerator 305 is started and supplies air into the gas pipe 304. The gas enters the sealing ring 303 through the gas pipe 304. The servo motor 301 starts synchronously. When the servo motor 301 starts, it drives the rotating shaft 302 to rotate. When the rotating shaft 302 rotates, it drives the gas channel 307 to rotate through the connecting rod 306. The gas in the sealing ring 303 will enter the gas channel 307 through the space between the rotating shaft 302 and the gas channel 307. The gas in the gas channel 307 enters the stirring blade 308. The gas is finally discharged through the exhaust hole of the stirring blade 308. When the stirring blade 308 discharges the gas, the stirring blade 308 will rotate, thereby discharging the gas to different positions and mixing it at the same time, thus improving the filtration effect of the filter membrane assembly 4.

[0029] When the mixing mechanism 3 mixes the gas and the filter membrane assembly 4 filters it, the handwheel 503 can be rotated. When the handwheel 503 rotates, it drives the threaded rod 502 to rotate. When the threaded rod 502 rotates, it causes the moving block 504 to move up and down on the side of the threaded rod 502. When the moving block 504 moves up and down, it drives the first detector 505 and the second detector 506 to move up and down. The first detector 505 and the second detector 506 can monitor different positions. When the first detector 505 and the second detector 506 move up and down, they can monitor different depths.

[0030] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A biofilm filter device for sewage treatment, comprising a sewage treatment tank (1), characterized in that: The wastewater treatment tank (1) is internally connected to a mixing mechanism (3), a filter membrane assembly (4) is fixedly connected to the side of the wastewater treatment tank (1), a detection mechanism (5) is fixedly connected to one corner of the inside of the wastewater treatment tank (1), and a drain pipe (6) is fixedly connected to the side of the wastewater treatment tank (1) near the filter membrane assembly (4); the mixing mechanism (3) includes a servo motor (301) that provides power, a rotating shaft (302) is fixedly connected to the top of the servo motor (301), a sealing ring (303) is movably connected to the side of the rotating shaft (302), and a gas pipe is fixedly connected to the side of the sealing ring (303). 304), an aerator (305) is fixedly connected to the side of the gas pipe (304) away from the sealing ring (303). A gas channel (307) is movably connected to the top of the inside of the sealing ring (303). An agitator (308) is fixedly connected to the side of the gas channel (307). The gas in the aerator (305) passes through the gas pipe (304), the sealing ring (303) and the gas channel (307) and is discharged from the agitator (308). An exhaust hole is provided on the side of the agitator (308). The exhaust holes of the agitator (308) are equidistantly distributed on the side, top and bottom of the agitator (308).

2. The biofilm filter device for sewage treatment according to claim 1, characterized in that: The bottom of the sewage treatment tank (1) is fixedly connected to a support leg (2), and the detection mechanism (5) is located inside the sewage treatment tank (1) near the side of the filter membrane assembly (4). The sewage filtered by the filter membrane assembly (4) is discharged from the drain pipe (6).

3. The biofilm filter device for sewage treatment according to claim 1, characterized in that: The stirring blades (308) are divided into two groups, with four stirring blades (308) in each group. The four stirring blades (308) are distributed at equal angles on the side of the gas channel (307). A support plate (309) is movably connected to the side of the gas channel (307). The side of the support plate (309) away from the gas channel (307) is fixedly connected to the interior of the sewage treatment tank (1).

4. The biofilm filter device for sewage treatment according to claim 3, characterized in that: A connecting rod (306) is fixedly connected to the top end of the rotating shaft (302), and the top end of the connecting rod (306) is fixedly connected to the bottom end of the gas channel (307). The sealing ring (303) seals the connecting rod (306).

5. The biofilm filter device for sewage treatment according to claim 1, characterized in that: The detection mechanism (5) includes a fixed plate (501) for support, a threaded rod (502) is movably connected inside the fixed plate (501), a moving block (504) is threadedly connected to the side of the threaded rod (502), and a handwheel (503) is fixedly connected to the top of the threaded rod (502).

6. The biofilm filter device for sewage treatment according to claim 5, characterized in that: Of the four sides of the movable block (504), two adjacent sides are in contact with two sides at the included angle, and the other two sides of the movable block (504) are respectively fixedly connected to a first detector (505) and a second detector (506).

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