Sewage treatment device based on biological membrane technology

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device based on a biological membrane technology, which comprises a treatment tank, an aeration assembly is arranged at the bottom of the treatment tank, a sedimentation unit is arranged in the treatment tank, and the aeration assembly comprises a bottom pipe fixedly inserted at the bottom of the treatment tank. The end, extending out of the treatment tank, of the bottom pipe is fixedly connected with an air blower, branch pipes are distributed on the outer surface, extending into the treatment tank, of the bottom pipe in an annular matrix mode, the outer surfaces of the branch pipes are fixedly connected with aeration discs, the top end of the round rod is rotationally connected with a protective cover, and vent holes are formed in the outer surface of the protective cover in an annular matrix penetrating mode. When the air blower conveys air into the treatment tank, the force storage characteristic of the tower spring is utilized to realize force storage, and air entering the branch pipe is compressed and pushed during release, so that the air is forced to quickly enter the aeration disc, holes, covered by sundries, in the aeration disc can be ejected open, and the air exhaust efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically, to a sewage treatment device based on a biofilm technology. Background Art

[0002] Sewage is an inevitable product in the process of people's life and production. To purify sewage to meet the water quality requirements for discharging into a certain water body or reusing it, this process is also called sewage treatment. There are various ways of sewage treatment, and among them, the biofilm technology treatment, which is a technology that uses the biofilm formed by the attachment and growth of microorganisms on the solid surface to treat wastewater, is more widely used.

[0003] After retrieval, a sewage treatment device mentioned in a multi-stage microbial sewage treatment equipment disclosed according to the publication number CN118771612A includes an aeration tank. A sludge collection frame and a sludge interception frame are movably connected inside the aeration tank. A chute is provided on the inner wall of the aeration tank, and the sludge interception frame and the sludge collection frame are inserted into the chute. The top side of the sludge collection frame is an open structure, the bottom side is a sealed structure, and the four sides of the sludge collection frame are a mesh structure. An opening is provided on the top side of the sludge collection frame, and an aeration disk is inserted into the opening. A sludge interception frame is arranged on the top side of the aeration disk. Drainage pipes are respectively connected to both sides of the sludge tank, a sludge pump is arranged on the drainage pipe, and a screw conveyor is connected to one side of the drainage pipe. One end of the screw conveyor is connected to the top side of the sludge interception frame, which can keep the sludge in the aeration tank inside the aeration tank, thereby improving the efficiency of microorganisms in the aeration tank to decompose harmful substances. However, when this scheme is actually used, there are still the following deficiencies:

[0004] In a sewage treatment device based on the biofilm technology, the most important thing is that microorganisms react with organic pollutants, nitrogen, phosphorus and other nutrients in the wastewater. This process mostly takes place in the reaction tank. Since the survival needs of microorganisms themselves and the progress of the reaction both require oxygen, an aeration device needs to be used to add air into the reaction tank to ensure the smooth progress of decontamination. The aeration device is mostly installed at the lower part of the reaction tank. During the process of microorganisms decontaminating, precipitation will inevitably occur, and then the precipitate is likely to fall on the structure of the aeration device extending into the reaction tank, easily causing the air outlet membrane holes to be blocked, thereby affecting the normal discharge of air, and finally reducing the survival of microorganisms and the decontamination efficiency. Based on this, the present invention discloses a sewage treatment device based on the biofilm technology. Summary of the Invention

[0005] To solve the problems in the background art, the present invention provides a sewage treatment device based on the biofilm technology, which includes a treatment tank, an aeration assembly is arranged at the bottom of the treatment tank, and a sedimentation unit is arranged inside the treatment tank;

[0006] Among them, the aeration component includes a bottom pipe fixedly inserted through the bottom of the treatment tank. One end of the bottom pipe extending out of the treatment tank is fixedly connected to a blower. The outer surface of the bottom pipe extending into the treatment tank is distributed with branch pipes in an annular matrix. The outer surface of the branch pipe is fixedly connected with an aeration disc. The upper surface of the aeration disc is fixedly connected with a round rod. The top end of the round rod is rotatably connected with a protective cover. The outer surface of the protective cover is provided with ventilation holes in an annular matrix. A blockage prevention component is arranged inside the protective cover, and a power storage component is arranged inside the branch pipe.

[0007] As a further improvement of this technical solution, the blockage prevention component includes a central rod movably inserted through the top end of the bottom pipe. A fan blade is fixedly connected to the bottom end of the central rod. A driving wheel is fixedly connected to the top end of the central rod. A driven wheel is fixedly sleeved on the outer surface of the protective cover. The driving wheel is meshed with the driven wheel. A turntable is fixedly sleeved on the outer surface of the round rod. Wave grooves are formed on the upper and lower surfaces of the turntable. A clamping block is movably clamped inside the wave groove. A dredging rod is fixedly connected to the outer surface of the clamping block. The dredging rods are arranged in one-to-one correspondence with the ventilation holes.

[0008] As a further improvement of this technical solution, the power storage component includes a sealing plate movably arranged in the middle of the branch pipe. A tower spring is arranged on the side of the sealing plate away from the bottom pipe. There are two tower springs and they are symmetrically arranged. A balance plate is arranged in the middle of the two tower springs. A sliding groove is formed on the inner wall of the branch pipe. A ball is embedded on the outer surface of the sealing plate. The ball is slidably connected inside the sliding groove.

[0009] As a further improvement of this technical solution, a shaft rod is arranged at the connection between the branch pipe and the aeration disc. A valve plate is fixedly sleeved on the outer surface of the shaft rod. A vertical rod is fixedly connected to the bottom side of the valve plate. A support is arranged on the side of the sealing plate. A pull rod is rotatably connected to the middle of the support. A torsion spring is arranged at the connection between the pull rod and the support. The pull rod is movably inserted through the inside of the vertical rod.

[0010] As a further improvement of this technical solution, the sedimentation unit includes a disassembly and assembly component arranged on the inner wall of the treatment tank, a floating component arranged in the middle of the treatment tank, and a stirring component correspondingly arranged on the side of the floating component.

[0011] As a further improvement of this technical solution, the disassembly and assembly component includes a track fixedly connected to the inner wall of the treatment tank. A cross bar is movably connected inside the track. A rotating shaft is rotatably connected to the outer surface of the cross bar. A support seat is fixedly connected to the top end of the rotating shaft. A folding rod is movably inserted through the side of the support seat. A hoop plate is fixedly connected to the end of the folding rod extending out of the support seat. There are two hoop plates and they are symmetrically arranged. The two hoop plates are butted to form a round hoop. Magnets are embedded on the side where the two hoop plates are in contact with each other.

[0012] As a further improvement of the technical solution, an elastic rope is fixedly connected to the outer surface of the end of the cross bar extending into the track. The top end of the elastic rope is fixedly connected to a top plate, and the top plate is clamped on the top of the track.

[0013] As a further improvement of the technical solution, the floating assembly includes a cross fixed to the middle of the treatment tank. A sliding seat I is movably sleeved on the outer surface of the cross. A transmission rod is fixedly connected to the top of the protective cover corresponding to the bottom of the sliding seat I. The top end of the transmission rod is fixedly connected to a semi-gear. Inner racks are symmetrically arranged on the side of the bottom inner wall of the sliding seat I. The two inner racks are meshed with the semi-gear in a staggered manner. A support rod I is hinged to the top of the sliding seat I, and the end of the support rod I away from the sliding seat I is hinged to the middle of the lower surface of the cross bar.

[0014] As a further improvement of the technical solution, the stirring assembly includes a stirring rod rotatably connected to the middle of the treatment tank. A flat gear is fixedly sleeved in the middle of the stirring rod. A sliding seat II is movably sleeved on the outer surface of the cross. The sliding seat II and the sliding seat I are distributed in a staggered manner. A connecting plate is fixedly connected to the top of the sliding seat II, and outer racks are fixedly connected to both sides of the connecting plate.

[0015] As a further improvement of the technical solution, the outer rack is meshed with the flat gear. A support rod II is hinged to the side of the outer surface of the sliding seat II, and the end of the support rod II away from the sliding seat II is hinged to the side of the sliding seat I.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In this sewage treatment device based on the biofilm technology, by setting the aeration assembly and the energy storage assembly, while realizing the function of delivering air into the treatment tank through the blower, the energy storage characteristic of the tower spring is utilized to store energy and compress and push the air entering the branch pipe when released, forcing the air to quickly enter the aeration disc. Furthermore, the holes covered by sundries on the aeration disc can be pushed open, improving the air discharge efficiency.

[0018] 2. In this sewage treatment device based on the biofilm technology, by setting the anti-blocking assembly, the rotation of the fan blade driven by the airflow blown by the blower is used as the driving force to realize the relative rotation of the protective cover and the aeration disc. The sliding of the clamping block in the wave groove drives the dredging rod to slide back and forth inside the ventilation hole, playing a role in cleaning the blockage on the premise of ensuring ventilation, ensuring the smoothness of the aeration device, and improving the aeration efficiency.

[0019] 3. In the sewage treatment device based on the biofilm technology, by setting the disassembly and assembly component and the floating component, the convenient disassembly and assembly of the carrier are realized. Then, by using the floating component and driving the cross bar to float up and down and sink through transmission, the floating of the carrier is realized, so that the carrier is no longer fixed but moving in the treatment tank, thereby improving the treatment effect of the microorganisms on the sewage on the carrier.

[0020] 4. In the sewage treatment device based on the biofilm technology, by setting the stirring component and driving the stirring component to operate by using the movement of the floating component, the sewage is stirred, and at the same time, the centrifugal force of the conventional stirring is avoided, the stirring efficiency is improved, and thus the decontamination and purification effect of the microorganisms is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the partial sectional structural schematic diagram of the present invention;

[0023] Figure 3 is the structural schematic diagram of the aeration component of the present invention;

[0024] Figure 4 is the structural schematic diagram of the anti-blocking component of the present invention;

[0025] Figure 5 is the structural schematic diagram of the turntable of the present invention;

[0026] Figure 6 is the structural schematic diagram of the energy storage component of the present invention;

[0027] Figure 7 is Figure 6 the enlarged structural view of part A in

[0028] Figure 8 is the structural schematic diagram of the disassembly and assembly component of the present invention;

[0029] Figure 9 is the structural schematic diagram of the sedimentation unit of the present invention;

[0030] Figure 10 is the structural schematic diagram of the floating component of the present invention;

[0031] Figure 11 is the enlarged structural view of the stirring component of the present invention;

[0032] Figure 12 is the structural schematic diagram of the second sliding seat of the present invention.

[0033] The meanings of the various reference numerals in the figure are:

[0034] 1. Treatment tank; 201. Bottom pipe; 202. Blower; 203. Branch pipe; 204. Aeration disc; 205. Round rod; 206. Protective cover; 207. Vent hole; 301. Central rod; 302. Fan blade; 303. Driving wheel; 304. Driven wheel; 305. Turntable; 306. Wave groove; 307. Clamping block; 308. Cleaning rod; 401. Sealing plate; 402. Tower spring; 403. Balance plate; 404. Chute; 405. Ball; 406. Support; 407. Tie rod; 408. Torsion spring; 409. Shaft rod; 410. Valve plate; 411. Vertical rod; 501. Track; 502. Cross bar; 503. Rotating shaft; 504. Support seat; 505. Folding rod; 506. Hoop plate; 507. Magnet; 508. Elastic cord; 509. Top plate; 601. Cross; 602. Slide block 1; 603. Transmission rod; 604. Half gear; 605. Internal rack; 606. Support rod 1; 701. Stirring rod; 702. Flat gear; 703. Slide block 2; 704. Support rod 2; 705. Connecting plate; 706. External rack. Detailed implementation mode

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0036] Therefore, the present invention provides a sewage treatment device based on biological membrane technology. See Figures 1 to 4 As shown in the figure, it includes a treatment tank 1. An aeration component is arranged at the bottom of the treatment tank 1, and a sedimentation unit is arranged inside the treatment tank 1;

[0037] The aeration component includes a bottom pipe 201 fixedly inserted through the bottom of the treatment tank 1. One end of the bottom pipe 201 extending out of the treatment tank 1 is fixedly connected to a blower 202. Branch pipes 203 are annularly and matrix-distributed on the outer surface of the bottom pipe 201 extending into the treatment tank 1. An aeration disc 204 is fixedly connected to the outer surface of the branch pipe 203. A round rod 205 is fixedly connected to the upper surface of the aeration disc 204. The top end of the round rod 205 is rotatably connected to a protective cover 206. Vent holes 207 are annularly and matrix-penetrated on the outer surface of the protective cover 206. An anti-blocking component is arranged inside the protective cover 206, and a power storage component is arranged inside the branch pipe 203;

[0038] Turn on the blower 202. The operation of the blower 202 generates a strong airflow that drives air into the bottom pipe 201. The air disperses into each branch pipe 203 at the top of the bottom pipe 201, enters the aeration disc 204 through the branch pipe 203, and is discharged from the holes on the aeration disc 204. Finally, it is discharged into the treatment tank 1 through the ventilation holes 207 on the side of the protective cover 206, avoiding sediment from falling on the upper surface of the aeration disc 204 during the treatment process and blocking the air holes. The ventilation holes 207 are arranged on the side of the protective cover 206, which can play a role in preventing blockage to a certain extent.

[0039] As Figures 2 to 5 shown, the anti-blocking component includes a central rod 301 that is movably inserted through the top end of the bottom pipe 201. A fan blade 302 is fixedly connected to the bottom end of the central rod 301. A driving wheel 303 is fixedly connected to the top end of the central rod 301. A driven wheel 304 is fixedly sleeved on the outer surface of the protective cover 206. The driving wheel 303 is meshed and connected with the driven wheel 304. A turntable 305 is fixedly sleeved on the outer surface of the round rod 205. Wave grooves 306 are formed on the upper and lower surfaces of the turntable 305. A clamping block 307 is movably clamped inside the wave groove 306. A dredging rod 308 is fixedly connected to the outer surface of the clamping block 307. The dredging rods 308 are arranged in one-to-one correspondence with the ventilation holes 207.

[0040] When the airflow flows in the bottom pipe 201 and the branch pipes 203, it will drive the fan blade 302 to rotate. Then, it will drive the driving wheel 303 to rotate through the central rod 301. The driving wheel 303 drives the driven wheel 304 to rotate, and then drives all the protective covers 206 to rotate around the round rod 205. The rotation of the protective cover 206 and the static state of the turntable 305 form a relative rotation, which will drive the clamping block 307 to slide along the wave groove 306. During the sliding process of the clamping block 307, it will drive the dredging rod 308 to slide back and forth inside the ventilation hole 207. When the dredging rod 308 slides inward, the ventilation hole 207 will be opened, and the air discharged from the aeration disc 204 can be discharged from the dredging hole. When the dredging rod 308 slides outward, it can eject the sundries entering the ventilation hole 207, playing a role in clearing the blockage on the premise of ensuring ventilation, ensuring the smoothness of the aeration device, and improving the aeration efficiency.

[0041] As Figure 2 、 Figure 4 、 Figure 6 and Figure 7As shown in the figure, the energy storage component includes a sealing plate 401 movably arranged in the middle of the branch pipe 203. On the side of the sealing plate 401 away from the bottom pipe 201, there are two tower springs 402 arranged symmetrically. In the middle of the two tower springs 402, there is a balance plate 403. A chute 404 is opened on the inner wall of the branch pipe 203. A ball 405 is embedded on the outer surface of the sealing plate 401. The ball 405 is slidably connected inside the chute 404. At the connection between the branch pipe 203 and the aeration disc 204, there is a shaft rod 409. A valve plate 410 is fixedly sleeved on the outer surface of the shaft rod 409. A vertical rod 411 is fixedly connected to the bottom side of the valve plate 410. A support 406 is arranged on the side of the sealing plate 401. A pull rod 407 is rotatably connected in the middle of the support 406. A torsion spring 408 is arranged at the connection between the pull rod 407 and the support 406. The pull rod 407 is movably inserted inside the vertical rod 411;

[0042] When the blower 202 operates to generate a strong air flow to drive air into the branch pipe 203, when entering the branch pipe 203, since the valve plate 410 closes the aeration disc 204, the air flow will push the sealing plate 401 to slide inside the branch pipe 203. There is a ball 405 on the side of the sealing plate 401 sliding in the chute 404, converting the sliding friction into rolling friction to reduce the friction force. When the sealing plate 401 moves, it will compress the tower springs 402. The balance plate 403 in the middle of the two tower springs 402 can ensure the balance when the tower springs 402 are compressed and rebound, and will not tilt. When the tower springs 402 contract, they will store energy. When the sealing plate 401 moves, it will also pull the pull rod 407 to move. When the end of the pull rod 407 contacts the vertical rod 411, the pull rod 407 will drive the vertical rod 411 to move, and then will drive the valve plate 410 to rotate around the shaft rod 409. At the same time, the downward turning of the vertical rod 411 will also drive the pull rod 407 to rotate around the support 406 and compress the torsion spring 408, so that the channel to the aeration disc 204 is opened. At this time, air will enter the aeration disc 204, and the compressed tower springs 402 will also rebound to push the sealing plate 401 to move, applying a compression force to the air in the branch pipe 203, forcing the air to quickly enter the aeration disc 204, and then the holes covered by sundries on the aeration disc 204 can be pushed open, improving the air discharge efficiency. During the return movement of the sealing plate 401, the torsion spring 408 rebounds and drives the pull rod 407 to rotate, and then will push the vertical rod 411 to turn up, so that the valve plate 410 closes the channel again. In this way, the effect of dredging the aeration disc 204 is better.

[0043] As Figures 8 to 12 shown in the figure, the sedimentation unit includes a disassembly and assembly component arranged on the inner wall of the treatment tank 1, a floating component arranged in the middle of the treatment tank 1, and a stirring component correspondingly arranged on the side of the floating component;

[0044] The disassembly and assembly component includes a track 501 fixedly connected to the inner wall of the processing tank 1. A cross bar 502 is movably connected inside the track 501. A rotating shaft 503 is rotatably connected to the outer surface of the cross bar 502. A support base 504 is fixedly connected to the top end of the rotating shaft 503. A folding rod 505 is movably inserted through the side of the support base 504. A hoop plate 506 is fixedly connected to the end of the folding rod 505 extending out of the support base 504. Two hoop plates 506 are symmetrically arranged and the two hoop plates 506 are butted to form a circular hoop. Magnets 507 are embedded on the side of the two hoop plates 506 that are in contact with each other. An elastic cord 508 is fixedly connected to the outer surface of the end of the cross bar 502 extending into the track 501. The top end of the elastic cord 508 is fixedly connected to a top plate 509. The top plate 509 is clamped on the top of the track 501;

[0045] Pull the top plate 509 to drive the cross bar 502 to move upward along the track 501 through the elastic cord 508. When the cross bar 502 moves up to the top of the track 501, the installation structure arranged on the outer surface of the cross bar 502 is closer to the staff at this time, which is convenient for the staff to install and replace the carrier. Push the two hoop plates 506 in opposite directions to open them, then place the carrier on the support base 504, release the hoop plates 506, and under the magnetic attraction of the magnets 507, the two hoop plates 506 will re-combine to form a hoop to bind and clamp the carrier, completing the installation of the carrier. Then put the cross bar 502 back into the track 501.

[0046] As Figure 9 and Figure 10 shown, the floating component includes a cross 601 fixedly connected to the middle of the processing tank 1. A first sliding seat 602 is movably sleeved on the outer surface of the cross 601. A transmission rod 603 is fixedly connected to the top of the corresponding top end of the protective cover 206 at the bottom of the first sliding seat 602. A semi-gear 604 is fixedly connected to the top end of the transmission rod 603. Inner racks 605 are symmetrically arranged on the side of the bottom inner wall of the first sliding seat 602. The two inner racks 605 are meshed with the semi-gear 604 in a staggered manner. A first support rod 606 is hinged to the top end of the first sliding seat 602. The end of the first support rod 606 away from the first sliding seat 602 is hinged to the middle of the lower surface of the cross bar 502;

[0047] During the rotation of the protective cover 206, the transmission rod 603 will drive the rotation of the half gear 604. During the rotation of the half gear 604, the two internal racks 605 inside the first sliding seat 602 will be engaged alternately, and then the first sliding seat 602 will be driven to perform a reciprocating linear motion along the axis of the cross 601. Since there are two sets of floating components symmetrically arranged and the half gears 604 on both sides are symmetrically arranged in the opposite direction, the two first sliding seats 602 can move in the opposite direction during the movement, and then the cross bar 502 can be pushed up and pulled down by the first support rod 606, realizing the up and down floating of the carrier, making the carrier move in the treatment tank 1 instead of being fixed, and thus improving the treatment effect of the microorganisms on the sewage on the carrier.

[0048] As Figures 9 to 12 shown, the stirring component includes a stirring rod 701 rotatably connected to the middle of the treatment tank 1. A spur gear 702 is fixedly sleeved in the middle of the stirring rod 701. A second sliding seat 703 is movably sleeved on the outer surface of the cross 601. The second sliding seat 703 and the first sliding seat 602 are arranged alternately. The top of the second sliding seat 703 is fixedly connected to a connecting plate 705. Outer racks 706 are fixedly connected to both sides of the connecting plate 705. The outer racks 706 are engaged with the spur gear 702. A second support rod 704 is hinged to the side of the outer surface of the second sliding seat 703. One end of the second support rod 704 away from the second sliding seat 703 is hinged to the side of the first sliding seat 602.

[0049] During the movement of the first sliding seat 602, the second sliding seat 703 will be driven to slide along the other axis of the cross 601 through the second support rod 704. During the movement of the second sliding seat 703, the outer rack 706 will be driven to engage with the spur gear 702 and drive the spur gear 702 to rotate, and then the stirring rod 701 will be driven to rotate, realizing the stirring of the sewage. Since the outer racks 706 are symmetrically arranged on both sides of the connecting plate 705, the spur gears 702 on both sides rotate in opposite directions, ensuring that the stirring directions of the stirring rod 701 are opposite. Moreover, the second sliding seat 703 also performs a linear reciprocating motion, so the stirring plate will also rotate forward and backward, avoiding the centrifugal force in conventional stirring, improving the stirring efficiency, and thus making the decontamination and purification effect of the microorganisms better.

[0050] For the technical solution provided by the present invention, the biological membrane technology for sewage treatment mainly removes organic matter in the sewage. Therefore, before treating the sewage, the sewage needs to be pretreated. For example, physical methods such as filtration and sedimentation are used to remove solid particulate matter in the sewage. The specific processes of these treatment methods are mature existing technologies and will not be elaborated here. The sewage transported into the treatment tank 1 has been pretreated. At this time, there are only some extremely tiny particles and bacteria and viruses in the sewage, which will not affect the operation of the mechanical devices and structures in the treatment tank. Moreover, the mechanical structures located in the treatment tank used in this application are all subjected to comprehensive anti-corrosion and anti-rust treatment to ensure that the structures can operate normally in the sewage and will not be easily corroded. Then, a carrier containing microorganisms is added to the treatment tank 1 for treatment. Specifically, the user pulls the top plate 509, and drives the cross bar 502 to move upward along the track 501 through the elastic cord 508. When the cross bar 502 moves to the top of the track 501, the installation structure arranged on the outer surface of the cross bar 502 is closer to the staff, which is convenient for the staff to install and replace the carrier. Push the two hoop plates 506 in opposite directions to open them, then place the carrier on the support seat 504, release the hoop plates 506, and under the magnetic attraction of the magnet 507, the two hoop plates 506 will re-combine to form a hoop to bind and clamp the carrier, completing the installation of the carrier. Then, just put the cross bar 502 back into the track 501;

[0051] During the sewage treatment process, air needs to be added to the treatment tank 1 to ensure the survival of microorganisms and decontamination. The blower 202 is turned on, and the operation of the blower 202 generates a strong airflow to drive air into the bottom pipe 201. The blower 202 uses a high-power Roots blower. Through the cooperation of multiple groups of impellers, a closed space is formed, and the air delivery flow rate is stable and the pressure is large. It can be used as a driving force to drive the structure to operate while meeting the aeration requirements. The air disperses into each branch pipe 203 at the top of the bottom pipe 201. When entering the branch pipe 203, since the valve plate 410 closes the aeration disc 204, the airflow will push the sealing plate 401 to slide inside the branch pipe 203. There are ball bearings 405 on the side of the sealing plate 401 that slide in the chute 404, converting sliding friction into rolling friction and reducing the friction force. The movement of the sealing plate 401 will compress the tower spring 402. The balance plate 403 in the middle of the two tower springs 402 can ensure the balance of the tower spring 402 during compression and rebound, and no tilting will occur. The contraction of the tower spring 402 will store energy. While the sealing plate 401 moves, it will also pull the pull rod 407 to move. When the end of the pull rod 407 contacts the vertical rod 411, the pull rod 407 will drive the vertical rod 411 to move, and then drive the valve plate 410 to rotate around the shaft rod 409. At the same time, the downward turning of the vertical rod 411 will also drive the pull rod 407 to rotate around the support 406 and compress the torsion spring 408, opening the channel to the aeration disc 204. At this time, air will enter the aeration disc 204, and the compressed tower spring 402 will also rebound to push the sealing plate 401 to move, applying a compression force to the air in the branch pipe 203, forcing the air to quickly enter the aeration disc 204, and then the holes covered with debris on the aeration disc 204 can be pushed open, improving the air discharge efficiency. During the return movement of the sealing plate 401, the torsion spring 408 rebounds and drives the pull rod 407 to rotate, and then pushes the vertical rod 411 to turn up, making the valve plate 410 close the channel again. This process repeats, achieving a better effect of dredging the aeration disc 204. In addition, when the airflow flows in the bottom pipe 201 and the branch pipe 203, it will drive the fan blade 302 to rotate, and then drive the driving wheel 303 to rotate through the central rod 301. The driving wheel 303 drives the driven wheel 304 to rotate, and then drives all the protective covers 206 to rotate around the round rod 205. The rotation of the protective cover 206 and the static state of the turntable 305 form relative rotation, and then drive the clamping block 307 to slide along the wavy groove 306. During the sliding process of the clamping block 307, it will drive the dredging rod 308 to slide back and forth inside the ventilation hole 207. When the dredging rod 308 slides inward, the ventilation hole 207 will be opened, and the air discharged from the aeration disc 204 can be discharged from the dredging hole. When the dredging rod 308 slides outward, it can push out the debris entering the ventilation hole 207, playing a role in clearing blockages while ensuring ventilation, ensuring the smoothness of the aeration device and improving the aeration efficiency;

[0052] During the rotation of the protective cover 206, the transmission rod 603 will drive the rotation of the half gear 604. During the rotation of the half gear 604, the two internal racks 605 inside the first sliding seat 602 will be engaged alternately, and then the first sliding seat 602 will be driven to perform a reciprocating linear motion along the axis of the cross 601. Since there are two sets of floating components symmetrically arranged, and the half gears 604 on both sides are symmetrically arranged in the opposite direction, the two first sliding seats 602 can move in the opposite direction during the movement, and then the cross bar 502 can be pushed up and pulled down by the first support rod 606, realizing the up and down floating of the carrier, making the carrier move in the treatment tank 1 instead of being fixed, and then improving the treatment effect of the microorganisms on the sewage on the carrier. During the movement of the first sliding seat 602, the second sliding seat 703 will be driven to slide along the other axis of the cross 601 by the second support rod 704. Since the four second support rods 704 between the two first sliding seats 602 and the two second sliding seats 703 form a parallelogram, according to the parallelogram rule, it can be known that the movement mode of the second sliding seat 703 is the same as that of the first sliding seat 602. During the movement of the second sliding seat 703, the external rack 706 will be driven to engage with the spur gear 702 and drive the spur gear 702 to rotate, and then the stirring rod 701 will be driven to rotate, realizing the stirring of the sewage. And since the external racks 706 are symmetrically arranged on both sides of the connecting plate 705, the spur gears 702 on both sides rotate in the opposite direction, ensuring that the stirring directions of the stirring rods 701 are opposite. Moreover, the second sliding seat 703 also performs a linear reciprocating motion, so the stirring plate will also perform forward and reverse rotations, avoiding the centrifugal force of conventional stirring, improving the stirring efficiency, and then making the decontamination and purification effect of the microorganisms better.

[0053] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device based on biofilm technology, comprising a treatment tank (1), characterized in that: An aeration assembly is provided at the bottom of the treatment tank (1), and a sedimentation unit is provided inside the treatment tank (1); The aeration component comprises a bottom pipe (201) fixedly inserted into the bottom of the treatment tank (1); one end of the bottom pipe (201) extending out of the treatment tank (1) is fixedly connected to a blower (202); a ring-shaped matrix of branch pipes (203) are distributed on the outer surface of the bottom pipe (201) extending into the treatment tank (1); an aeration plate (204) is fixedly connected to the outer surface of the branch pipe (203); a round rod (205) is fixedly connected to the upper surface of the aeration plate (204); a protective cover (206) is rotatably connected to the top of the round rod (205); a ventilation hole (207) is opened through the ring-shaped matrix of the outer surface of the protective cover (206); an anti-blocking component is arranged inside the protective cover (206); and a power storage component is arranged inside the branch pipe (203).

2. The sewage treatment device based on biofilm technology according to claim 1 is characterized in that: The anti-blocking component comprises a central rod (301) movably inserted into the top end of the bottom tube (201), the bottom end of the central rod (301) is fixedly connected with a fan blade (302), the top end of the central rod (301) is fixedly connected with a driving wheel (303), the outer surface of the protective cover (206) is fixedly sleeved with a driven wheel (304), the driving wheel (303) is meshingly connected with the driven wheel (304), the outer surface of the round rod (205) is fixedly sleeved with a turntable (305), the upper and lower surfaces of the turntable (305) are provided with a wave groove (306), the inside of the wave groove (306) is movably clamped with a clamping block (307), the outer surface of the clamping block (307) is fixedly connected with a dredging rod (308), and the dredging rod (308) is arranged one-to-one with the vent hole (207).

3. The sewage treatment device based on biofilm technology according to claim 1 is characterized in that: The power storage component comprises a sealing plate (401) movably arranged in the middle of the branch pipe (203); a tower spring (402) is arranged on the side of the sealing plate (401) away from the bottom pipe (201); two tower springs (402) are arranged symmetrically; a balance plate (403) is arranged in the middle of the two tower springs (402); a sliding groove (404) is opened on the inner wall of the branch pipe (203); a ball (405) is embedded in the outer surface of the sealing plate (401); and the ball (405) is slidably connected to the inside of the sliding groove (404).

4. The sewage treatment device based on biofilm technology according to claim 3 is characterized in that: A shaft (409) is provided at the connection between the branch pipe (203) and the aeration plate (204), and a valve plate (410) is fixedly sleeved on the outer surface of the shaft (409), and a vertical rod (411) is fixedly connected to the bottom side of the valve plate (410), and a support (406) is provided on the side of the sealing plate (401), and a pull rod (407) is rotatably connected to the middle part of the support (406), and a torsion spring (408) is provided at the connection between the pull rod (407) and the support (406), and the pull rod (407) is movably inserted into the interior of the vertical rod (411).

5. The sewage treatment device based on biofilm technology according to claim 1 is characterized in that: The sedimentation unit comprises a disassembly and assembly component arranged on the inner wall of the processing tank (1), a floating component arranged in the middle of the processing tank (1), and a stirring component correspondingly arranged on the side of the floating component.

6. The sewage treatment device based on biofilm technology according to claim 5 is characterized in that: The disassembly assembly comprises a track (501) fixedly connected to the inner wall of the processing tank (1); a cross bar (502) is movably connected inside the track (501); a rotating shaft (503) is rotatably connected to the outer surface of the cross bar (502); a top end of the rotating shaft (503) is fixedly connected to a support seat (504); a folding rod (505) is movably inserted into the side of the support seat (504); one end of the folding rod (505) extending out of the support seat (504) is fixedly connected to a hoop plate (506); two hoop plates (506) are symmetrically arranged and the two hoop plates (506) are butt-jointed to form a circular hoop; a magnet (507) is embedded in one side of the two hoop plates (506) that are in contact with each other.

7. The sewage treatment device based on biofilm technology according to claim 6 is characterized in that: The outer surface of the end of the cross bar (502) extending into the track (501) is fixedly connected with an elastic rope (508), and the top of the elastic rope (508) is fixedly connected with a top plate (509), and the top plate (509) is clamped on the top of the track (501).

8. The sewage treatment device based on biofilm technology according to claim 7 is characterized in that: The floating assembly comprises a cross (601) fixedly connected to the middle of the processing tank (1); a slide seat (602) is movably sleeved on the outer surface of the cross (601); a transmission rod (603) is fixedly connected to the top of the protective cover (206) corresponding to the bottom of the slide seat (602); a half gear (604) is fixedly connected to the top of the transmission rod (603); inner gears (605) are symmetrically arranged on the side of the inner wall of the bottom of the slide seat (602); two inner gears (605) are staggeredly meshed with the half gear (604); a support rod (606) is hinged at the top of the slide seat (602); and one end of the support rod (606) away from the slide seat (602) is hinged to the middle of the lower surface of the cross bar (502).

9. The sewage treatment device based on biofilm technology according to claim 8 is characterized in that: The stirring assembly comprises a stirring rod (701) rotatably connected to the middle of the processing tank (1); a flat gear (702) is fixedly sleeved in the middle of the stirring rod (701); a second slide (703) is movably sleeved on the outer surface of the cross (601); the second slide (703) and the first slide (602) are staggered; the top of the second slide (703) is fixedly connected to a connecting plate (705); and both sides of the connecting plate (705) are fixedly connected to external racks (706).

10. The sewage treatment device based on biofilm technology according to claim 9 is characterized in that: The outer rack (706) is meshedly connected with the flat gear (702), and the outer surface side of the slide seat 2 (703) is hinged with a support rod 2 (704), and one end of the support rod 2 (704) away from the slide seat 2 (703) is hinged to the side of the slide seat 1 (602).

Images