CN118459036B

CN118459036B - Rural sewage treatment system based on buried SBR and treatment method thereof

Info

Publication number: CN118459036B
Application number: CN202410928304.8A
Authority: CN
Inventors: 陈雍; 谢佳炜; 林喜松; 林展鹏; 丁桂鹏; 林木青; 潘佳佳; 王焜; 郑温悦; 邱岱; 黄璇卿; 黄泽亮; 黄煜铎; 荀世忠; 李蔚嵩
Original assignee: Chaozhou Chaoan Guangye Environmental Treatment Co ltd; Shantou Chenghai Guangye Environmental Protection Co ltd
Current assignee: Shantou Chaoyang District Guangye Weaving And Dyeing Environmental Protection Co ltd
Priority date: 2024-07-11
Filing date: 2024-07-11
Publication date: 2024-11-08
Anticipated expiration: 2044-07-11
Also published as: CN118459036A

Abstract

The invention relates to the technical field of sewage treatment, in particular to a rural sewage treatment system based on buried SBR, which comprises a water inlet tank, a reaction tank and a sedimentation tank, wherein vibration of a vehicle passing through the treatment tank can be primarily reduced by extruding a return spring through a movable rod, a protection cover can drive a connecting block to extrude a first push plate to drive the first push plate to move while moving downwards, the first push plate can extrude a first spring telescopic rod when moving, the first push plate is matched with the first spring telescopic rod to work, vibration of the vehicle passing through the treatment tank can be further reduced, the service life of the treatment tank is prevented from being reduced due to vibration, meanwhile, a first rack and a second rack can reciprocate to be matched with the first gear and the second gear to rotate when the first push plate moves, and a hairbrush and a first scraping plate can be driven to work when being matched with two bidirectional threaded rods to work, so that the inner wall of the water inlet tank and the outer wall of the treatment tank are cleaned.

Description

Rural sewage treatment system based on buried SBR and treatment method thereof

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a rural sewage treatment system based on buried SBR, and particularly relates to a rural sewage treatment method based on buried SBR.

Background

SBR is a short name of sequencing batch activated sludge process, is an activated sludge sewage treatment technology operated in an intermittent aeration mode, and is mainly characterized by orderly and intermittent operation in operation, the core of the SBR technology is an SBR reaction tank, the tank integrates functions of homogenization, primary sedimentation, biodegradation, secondary sedimentation and the like into one tank, a sludge reflux system is not needed, and the method is particularly suitable for occasions with insufficient construction space and large intermittent discharge and flow change and has wide application in China.

Chinese patent publication No. CN116444030B discloses a buried SBR sewage treatment device, including the cistern, the right side of cistern is provided with the treatment tank, the water pump is installed to the upper end of cistern, the water pipe is all installed to the water pumping mouth and the outlet of water pump, the water pumping end setting of water pipe is in the bottom of cistern, the drainage end setting of water pipe is in the inside of handling the pond, the inner wall of cistern is close to the upper end position and installs first level sensor, the inner wall of cistern is close to the lower extreme position and installs second level sensor. The sewage treatment device can realize the continuous domestic sewage passing through the water storage tank, and is pumped into the treatment tank for aeration treatment after the sewage is continuously and quantitatively treated, so that the problem that the domestic sewage is difficult to treat due to intermittent discharge is solved, and the sewage can be stirred by rotating the three groups of gas rods by utilizing the reaction force of the gas during aeration, thereby improving the mobility of the sewage and improving the uniformity of the sewage oxidized by bubbles.

The treatment tank is buried underground for use, but in daily use, vehicles can vibrate the ground after passing through the treatment tank, and vibration energy is transmitted to the treatment tank, so that the treatment tank generates larger vibration, the stability of the work of the treatment tank is easily affected, and the service life of the treatment tank is reduced; in addition, after long-term use, attachments are generated inside the device, and the device cannot be cleaned conveniently.

Disclosure of Invention

According to the rural sewage treatment system based on the buried SBR and the treatment method thereof, vibration of a vehicle passing through a treatment pool can be primarily reduced by utilizing the movable rod to extrude the reset spring, the protective cover can drive the connecting block to extrude the first push plate to drive the first push plate to move when moving downwards, the first push plate can extrude the first spring telescopic rod when moving, vibration of the vehicle passing through the treatment pool can be further reduced by utilizing the first push plate to cooperate with the first spring telescopic rod, and the treatment pool is prevented from being reduced in service life due to vibration.

In order to solve the problems in the prior art, the invention provides a rural sewage treatment system based on buried SBR, which comprises a water inlet tank, a reaction tank and a sedimentation tank, wherein the water inlet tank, the reaction tank and the sedimentation tank are all arranged in the treatment tank, the treatment tank is arranged in the protection frame, the top of the protection frame is symmetrically provided with a sleeve, the inside of the sleeve is provided with a reset spring, the top of the reset spring is provided with a movable rod, the top of the movable rod is provided with a lower pressing plate, the top of the lower pressing plate is provided with a protective cover, the outer walls of the two sides of the lower pressing plate are all provided with connecting blocks in a rotating mode, the other end of the connecting blocks is provided with a first push plate in a rotating mode, the side wall of the first push plate is provided with a first spring telescopic rod, the other end of the first spring telescopic rod is connected with the inner wall of the protection frame, the outside of the first push plate is respectively provided with a first rack and a connecting plate, the outside of the connecting plate is provided with a second rack, the inside of the protection tank is symmetrically provided with a second guide rod, the outside of the second guide rod is movably provided with a symmetrical first scraping plate, the two scraping plates are respectively provided with a threaded hole for being meshed with the first double-screw bolts.

Preferably, the outer wall of the treatment tank is provided with a first guide rod and a first bidirectional screw rod, the outer part of the first guide rod is movably provided with symmetrical brushes, threaded holes matched with the first bidirectional screw rod are formed in the two brushes, and one end of the first bidirectional screw rod is provided with a first gear meshed with the second rack.

Preferably, the inside intercommunication of intake pool has the inlet tube, the inside activity of intake pool is provided with the filter, the lateral wall of filter is provided with the second push pedal, the lateral wall of second push pedal is provided with the second spring telescopic link, the one end of second spring telescopic link is connected with the lateral wall of baffle, the baffle is connected with the lateral wall of reaction box, the lateral wall rotation of baffle is provided with first bull stick, the top of first bull stick is provided with first synchronizing wheel, the outside of first bull stick is provided with the conflict piece.

Preferably, the top of reaction box is provided with reagent storage barrel, motor, air pump, third water pump and first water pump, the input of third water pump is linked together through the inside of pipeline and intake pool, the output of third water pump is linked together through the inside of pipeline and reaction box, the inside bottom of reaction box's inside is provided with the aeration pipe, the aeration pipe is linked together through the output of pipeline and air pump.

Preferably, the inside rotation of reaction box is provided with the second bull stick, the outside of second bull stick is provided with the second synchronizing wheel, the second synchronizing wheel passes through the hold-in range and is connected with first synchronizing wheel transmission, the top of second bull stick is connected with the output shaft of motor through the shaft coupling.

Preferably, the outside of second bull stick is provided with a plurality of connecting rod, the outer wall of connecting rod is provided with a plurality of thorn bubble needle, the one end of connecting rod is provided with the second scraper blade, the exit end of reactant storage barrel is provided with the solenoid valve, the lateral wall of reaction tank is provided with first level sensor.

Preferably, the input end of the first water pump is communicated with the interior of the reaction tank through a pipeline, and the output end of the first water pump is communicated with the interior of the sedimentation tank through a pipeline.

Preferably, the inside of sedimentation tank is provided with the backup pad, the top of backup pad is provided with second water pump and sludge pump, the input intercommunication of second water pump has the hose, the input of sludge pump is linked together with the inside of sedimentation tank through the pipeline.

Preferably, the lateral wall of backup pad is provided with the gag lever post, the outside activity of gag lever post is provided with the plastic dish, the plastic dish is connected with the bottom outside of hose, the outer wall of plastic dish is provided with a plurality of gasbag, second level sensor has been seted up to the outer wall of plastic dish.

A rural sewage treatment method based on buried SBR comprises the following steps:

S1: the protection frame is pre-buried in the ground, keep the protection lid with ground same horizon, can lead to the protection lid vibrations and downwardly moving when having the vehicle to pass through, and the protection lid can drive the movable rod and move down and extrude reset spring when downwardly moving, utilize the movable rod to extrude reset spring can preliminary reduce the vibrations of vehicle through handling the pond, the protection lid also can drive connecting block extrusion first push pedal and drive its removal when downwardly moving, first push pedal can extrude first spring telescopic link when moving, utilize the vibrations of the reduction vehicle that first spring telescopic link work can be further through handling the pond of cooperation, prevent to handle the pond and reduce its life because of vibrations.

S2: the first push pedal can reciprocating motion when receiving the elasticity of first spring telescopic link to drive first rack and second rack reciprocating motion, first rack can drive the second gear rotation rather than meshing connection when removing, second gear rotation also can drive the rotation of second bidirectional screw rod, utilize the outside first scraper blade in second bidirectional screw rod both ends can clean the inner wall of intake pool, prevent that the foreign matter from piling up on the inner wall of intake pool, and the second rack can drive the first gear rotation rather than meshing connection when removing, first gear rotation also can drive first bidirectional screw rod and rotate, utilize the outside brush in first bidirectional screw rod both ends can clean the outer wall of handling the pond, prevent that the handling pond from burying underground for a long time, a large amount of dust are piled up to the outer wall.

S3: when rural sewage needs to be treated, utilize the inlet tube to discharge sewage to the inside of intake pool, utilize the inside filter of intake pool to filter great suspended solid and solid particle in the sewage, simultaneously starter motor drives second synchronizing wheel and second bull stick and rotates, and second synchronizing wheel cooperation hold-in range work drives first synchronizing wheel and rotates, thereby drive first bull stick and conflict piece and rotate, utilize conflict piece cooperation second spring telescopic link work can make the filter be in the state of vibrations all the time, prevent that the filtration pore of filter from being blockked up, later utilize the inside of sewage discharge to the reaction box in the third water pump with the intake pool.

S4: after sewage in the water inlet tank is discharged to the reaction tank, the third water pump stops working when the water level rises to the position of the first liquid level sensor, the air pump and the electromagnetic valve start working, air discharged by the air pump is matched with the work of the aeration pipe to perform aeration oxidation treatment on the sewage in the reaction tank, the electromagnetic valve is opened to enable the reactant in the reactant storage barrel to fall into the sewage, the purification effect of the sewage is enhanced, the second rotating rod can drive the connecting rod and the second scraping plate to rotate to clean the inner wall of the reaction tank while rotating, and the bubble-puncturing needle on the outer wall of the connecting rod can also rotate to divide bubbles, so that two or more small bubbles are formed, the contact area between the bubbles and the sewage is further increased, and the effect of oxidizing microorganisms in the sewage is improved.

S5: when sewage inside the reaction tank is purified for a period of time, the first water pump discharges the sewage inside the reaction tank to the inside of the sedimentation tank, at the moment, the hose can move upwards along with the rising of the water level under the action of the plastic disc and the air bag, when the sewage is discharged to the inside of the sedimentation tank and is settled for a period of time, the sludge can sink to the bottom, at the moment, the separated water is discharged by the second water pump, the water level can drop down while the hose can move downwards along with the falling of the water level under the action of the plastic disc and the air bag, meanwhile, the second liquid level sensor on the outer wall of the plastic disc also moves downwards, when most of the separated water is discharged, the hose can contact the sludge at the moment, the falling speed of the second liquid level sensor is abnormal, the water is completely discharged, at the moment, the third water pump is closed, and the sludge pump is started to clean the sludge at the bottom of the sedimentation tank.

Compared with the prior art, the invention has the beneficial effects that:

1. Can preliminary reduce the vibrations of vehicle through handling the pond through movable rod extrusion reset spring, the protective cover also can drive connecting block extrusion first push pedal when the downwardly moving and drive its removal, first push pedal can extrude first spring telescopic link when moving, utilize the vibrations of the first spring telescopic link work of first push pedal through handling the pond of reduction vehicle that can be further, prevent to handle the pond because of vibrations reduce its life, first push pedal can first rack and second rack reciprocating motion when moving simultaneously, utilize the reciprocating motion of first rack and second rack can drive first gear and second gear rotation, cooperate two bi-directional threaded rod work again can drive brush and first scraper blade work, clean the inner wall of intake pool and the outer wall of handling the pond respectively.

2. The filter plate inside the water inlet tank can filter larger suspended matters and solid particles in sewage, then aeration oxidation treatment can be carried out on the sewage through the aeration pipe inside the reaction tank, meanwhile, the motor drives the second rotating rod and the connecting rod to rotate, the bubble puncturing needle on the outer wall of the connecting rod can also rotate to divide bubbles, so that a plurality of small bubbles are formed, the contact area of the bubbles and the sewage is further increased, the effect of oxidizing microorganisms in the sewage is improved, and the separated sewage and sludge are discharged respectively by the sedimentation tank.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 2 is a schematic diagram of the internal structure of a treatment tank in a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 3 is a schematic view of the structure of a lower pressure plate in a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 4 is a schematic structural view of a first push plate in a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 5 is an enlarged schematic view of a treatment method of a rural sewage treatment system based on buried SBR at a point a.

Fig. 6 is a schematic structural view of a first bi-directional screw and a second bi-directional screw in a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 7 is a schematic view showing an internal structure of a sleeve in a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 8 is a schematic view of a structure of a water inlet tank in a treatment method of a rural sewage treatment system based on buried SBR.

FIG. 9 is a schematic view showing the structure of a filter plate in a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 10 is a schematic view showing the internal structure of a reaction tank in a treatment method of a rural sewage treatment system based on buried SBR.

Fig. 11 is a schematic structural view of a sedimentation tank in a treatment method of a rural sewage treatment system based on buried SBR.

FIG. 12 is a schematic view showing the structures of a plastic tray and an air bag in a treatment method of a rural sewage treatment system based on buried SBR.

The reference numerals in the figures are: 1. a protective frame; 2. a protective cover; 3. a lower pressing plate; 4. a connecting block; 5. a first push plate; 6. a hose; 7. a first rack; 8. a treatment pool; 9. a water inlet tank; 10. a water inlet pipe; 11. a filter plate; 12. a partition plate; 13. a reactant storage tub; 14. a first water pump; 15. a reaction box; 16. a second water pump; 17. a support plate; 18. a sludge pump; 19. an air pump; 20. a third water pump; 21. a motor; 22. a sedimentation tank; 23. a first spring telescoping rod; 24. a brush; 25. a first guide bar; 26. a first bi-directional screw; 27. a connecting plate; 28. a second rack; 29. a first gear; 30. a second gear; 31. a first scraper; 32. a second bidirectional screw; 33. a second guide bar; 34. a movable rod; 35. a sleeve; 36. a return spring; 37. a second push plate; 38. a second spring telescoping rod; 39. a synchronous belt; 40. a first synchronizing wheel; 41. a first rotating lever; 42. a collision block; 43. a second synchronizing wheel; 44. a second rotating rod; 45. a second scraper; 46. a connecting rod; 47. a puncture needle; 48. an aeration pipe; 49. a first liquid level sensor; 50. an electromagnetic valve; 51. a limit rod; 52. a plastic tray; 53. an air bag; 54. and a second liquid level sensor.

Detailed Description

The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.

As shown in fig. 1 to 12, the present invention provides:

the utility model provides a rural sewage treatment system based on buried SBR, including intake pool 9, reaction tank 15 and sedimentation tank 22, intake pool 9, reaction tank 15 and sedimentation tank 22 all set up in the inside of handling pond 8, handling pond 8 sets up the inside at protection frame 1, the top symmetry of protection frame 1 is provided with sleeve 35, the inside of sleeve 35 is provided with reset spring 36, reset spring 36's top is provided with movable rod 34, movable rod 34's top is provided with holding down plate 3, holding down plate 3's top is provided with protecting cover 2, holding down plate 3's both sides outer wall all rotates and is provided with connecting block 4, connecting block 4's the other end rotation is provided with first push pedal 5, first push pedal 5's lateral wall is provided with first spring telescopic link 23, first spring telescopic link 23's the other end is connected with the inner wall of protection frame 1, the outside of first push pedal 5 is provided with first rack 7 and connecting plate 27 respectively, the outside of connecting plate 27 is provided with second rack 28, intake pool 9's inside symmetry is provided with second guide bar 33, second guide bar 33's outside activity is provided with symmetrical first scraper blade 31, two inside of second scraper blade 31 are provided with two first scraper blade 31, two inside each is provided with two screw rods 32 to the screw rods 32, two screw rods 32 are all set up to the screw rod 32 to the screw bolt is engaged with each other.

Through protective cover 2 vibrations and downwardly moving, and protective cover 2 can drive movable rod 34 downwardly moving and extrusion reset spring 36 when downwardly moving, utilize movable rod 34 extrusion reset spring 36 can preliminary reduce the vibrations of vehicle through handling pond 8, protective cover 2 also can drive connecting block 4 extrusion first push pedal 5 when downwardly moving and drive its removal, first push pedal 5 can extrude first spring telescopic link 23 when moving, utilize first push pedal 5 cooperation first spring telescopic link 23 work can be further reduce the vibrations of vehicle through handling pond 8, prevent to handle pond 8 because of vibrations reduce its life, first rack 7 can drive the second gear 30 rotation rather than meshing connection when moving, second gear 30 rotates also can drive second bidirectional screw 32 rotation, utilize the outside first scraper blade 31 in second bidirectional screw 32 both ends can clean the inner wall of intake pond 9.

As shown in fig. 4 and 6, the outer wall of the treatment tank 8 is provided with a first guide rod 25 and a first bidirectional screw rod 26, the outside of the first guide rod 25 is movably provided with symmetrical brushes 24, threaded holes matched with the first bidirectional screw rod 26 are formed in the two brushes 24, and one end of the first bidirectional screw rod 26 is provided with a first gear 29 meshed with a second rack 28.

The second rack 28 drives the first gear 29 meshed with the second rack to rotate when moving, the first gear 29 rotates and drives the first bidirectional screw 26 to rotate, the outer walls of the treatment pool 8 can be cleaned by the hairbrushes 24 outside the two ends of the first bidirectional screw 26, the treatment pool 8 is prevented from being buried underground for a long time, and a large amount of dust is accumulated on the outer walls.

As shown in fig. 8, the water inlet pipe 10 is communicated with the inside of the water inlet tank 9, the filter plate 11 is movably arranged in the water inlet tank 9, the second push plate 37 is arranged on the side wall of the filter plate 11, the second spring telescopic rod 38 is arranged on the side wall of the second push plate 37, one end of the second spring telescopic rod 38 is connected with the side wall of the partition plate 12, the partition plate 12 is connected with the side wall of the reaction tank 15, the first rotating rod 41 is rotatably arranged on the side wall of the partition plate 12, the first synchronizing wheel 40 is arranged at the top of the first rotating rod 41, and the abutting block 42 is arranged outside the first rotating rod 41.

Through utilizing inlet tube 10 to discharge sewage to the inside of intake pool 9, utilize intake pool 9 inside filter 11 can filter great suspended solid and solid particle in the sewage, utilize the cooperation work between first dwang 41 and the conflict piece 42 for the cooperation work of conflict piece 42 cooperation second spring telescopic link 38 can make filter 11 be in the transition of vibrations always, prevents that the filtration hole of filter 11 from being blockked up.

As shown in fig. 2 and 9, the top of the reaction tank 15 is provided with a reactant storage tank 13, a motor 21, an air pump 19, a third water pump 20 and a first water pump 14, the input end of the third water pump 20 is communicated with the interior of the water inlet tank 9 through a pipeline, the output end of the third water pump 20 is communicated with the interior of the reaction tank 15 through a pipeline, the bottom end of the interior of the reaction tank 15 is provided with an aeration pipe 48, and the aeration pipe 48 is communicated with the output end of the air pump 19 through a pipeline.

The air pump 19 works in cooperation with the aeration pipe 48 to perform aeration oxidation treatment on the sewage in the reaction tank 15.

As shown in fig. 10, a second rotating rod 44 is rotatably arranged in the reaction box 15, a second synchronizing wheel 43 is arranged outside the second rotating rod 44, the second synchronizing wheel 43 is in transmission connection with the first synchronizing wheel 40 through a synchronizing belt 39, and the top of the second rotating rod 44 is connected with an output shaft of the motor 21 through a coupling.

The motor 21 drives the second synchronizing wheel 43 and the second rotating rod 44 to rotate, and the second synchronizing wheel 43 cooperates with the synchronous belt 39 to drive the first synchronizing wheel 40 to rotate.

As shown in fig. 10, a plurality of connecting rods 46 are provided outside the second rotating rod 44, a plurality of bubble piercing needles 47 are provided on the outer wall of the connecting rods 46, a second scraper 45 is provided at one end of the connecting rods 46, an electromagnetic valve 50 is provided at the outlet end of the reactant storage tank 13, and a first liquid level sensor 49 is provided on the side wall of the reaction tank 15.

The reactant inside the reactant storage tub 13 can be discharged through the solenoid valve 50, and the treatment of sewage is accelerated.

As shown in fig. 6, the input end of the first water pump 14 is communicated with the inside of the reaction tank 15 through a pipe, and the output end of the first water pump 14 is communicated with the inside of the sedimentation tank 22 through a pipe.

The sewage inside the reaction tank 15 can be discharged to the inside of the sedimentation tank 22 by the first water pump 14.

As shown in fig. 2, a supporting plate 17 is arranged in the sedimentation tank 22, a second water pump 16 and a sludge pump 18 are arranged at the top of the supporting plate 17, the input end of the second water pump 16 is communicated with a hose 6, and the input end of the sludge pump 18 is communicated with the interior of the sedimentation tank 22 through a pipeline.

The separated water and sludge can be discharged by the second water pump 16 and the sludge pump 18.

As shown in fig. 12, the side wall of the supporting plate 17 is provided with a limit rod 51, a plastic disc 52 is movably arranged outside the limit rod 51, the plastic disc 52 is connected with the outer side of the bottom end of the hose 6, a plurality of air bags 53 are arranged on the outer wall of the plastic disc 52, and a second liquid level sensor 54 is arranged on the outer wall of the plastic disc 52.

When sewage enters the sedimentation tank 22, the hose 6 moves upwards along with the rising of the water level under the action of the plastic tray 52 and the air bag 53, when sewage is discharged into the sedimentation tank 22 and is settled for a period of time, the sludge is settled at the bottom, the separated water is discharged by the third water pump 20, the water level is lowered while the sewage is discharged, the hose 6 moves downwards along with the falling of the water level under the action of the plastic tray 52 and the air bag 53, the second liquid level sensor 54 on the outer wall of the plastic tray 52 also moves downwards, when most of the separated water is discharged, the hose 6 contacts the sludge, the descending speed of the second liquid level sensor 54 is abnormal, the water is discharged, the third water pump 20 is turned off, and the sludge pump 18 is started to clean the sludge at the bottom of the sedimentation tank 22.

S1: the protection frame 1 is pre-buried in the ground, keep the protection cover 2 with ground same horizon, can lead to the protection cover 2 vibrations and downwardly moving when having the vehicle to pass through, and the protection cover 2 can drive movable rod 34 downwardly moving and extrude reset spring 36 when downwardly moving, utilize movable rod 34 extrusion reset spring 36 can preliminary reduce the vibrations of vehicle through handling pond 8, the protection cover 2 also can drive connecting block 4 extrusion first push pedal 5 and drive its removal when downwardly moving, first push pedal 5 can extrude first spring telescopic link 23 when moving, utilize the vibrations of handling pond 8 of the reduction vehicle that first push pedal 5 cooperation first spring telescopic link 23 work can be further, prevent to handle pond 8 because of vibrations reduce its life.

S2: the first push plate 5 can reciprocate when receiving the elasticity of first spring telescopic link 23 to drive first rack 7 and second rack 28 reciprocating motion, first rack 7 can drive the second gear 30 who is connected rather than the meshing when moving and rotate, second gear 30 also can drive second bi-directional screw 32 rotation when rotating, utilize the outside first scraper blade 31 in second bi-directional screw 32 both ends can clean the inner wall of intake pool 9, prevent that the foreign matter from piling up on the inner wall of intake pool 9, and second rack 28 can drive the first gear 29 rotation rather than the meshing connection when moving, first gear 29 rotates and also can drive first bi-directional screw 26 rotation, utilize the outside brush 24 in first bi-directional screw 26 both ends can clean the outer wall of treatment pool 8, prevent that treatment pool 8 from burying underground for a long time, the outer wall piles up a large amount of dust.

S3: when rural sewage needs to be treated, the sewage is discharged to the inside of the water inlet tank 9 by utilizing the water inlet pipe 10, larger suspended matters and solid particles in the sewage can be filtered by utilizing the filter plate 11 in the water inlet tank 9, meanwhile, the motor 21 is started to drive the second synchronous wheel 43 and the second rotating rod 44 to rotate, the second synchronous wheel 43 is matched with the synchronous belt 39 to work so as to drive the first synchronous wheel 40 to rotate, the first rotating rod 41 and the abutting block 42 are driven to rotate, the filter plate 11 can be always in a vibrating state by utilizing the abutting block 42 to be matched with the second spring telescopic rod 38, the filter holes of the filter plate 11 are prevented from being blocked, and then the sewage in the water inlet tank 9 is discharged to the inside of the reaction tank 15 by utilizing the third water pump 20.

S4: when the sewage in the water inlet tank 9 is discharged to the reaction tank 15, the third water pump 20 stops working when the water level rises to the position of the first liquid level sensor 49, the air pump 19 and the electromagnetic valve 50 start working, the air discharged by the air pump 19 is matched with the aeration pipe 48 to perform aeration oxidation treatment on the sewage in the reaction tank 15, the electromagnetic valve 50 is opened to enable the reactant in the reactant storage barrel 13 to fall into the sewage, the purification effect of the sewage is enhanced, the second rotating rod 44 rotates while driving the connecting rod 46 and the second scraping plate 45 to rotate so as to clean the inner wall of the reaction tank 15, and meanwhile, the puncture needle 47 on the outer wall of the connecting rod 46 also rotates so as to divide the bubbles, so that a plurality of small bubbles are formed, the contact area between the bubbles and the sewage is further increased, and the effect of oxidizing microorganisms in the sewage is improved.

S5: when sewage in the reaction tank 15 is purified for a period of time, the first water pump 14 discharges the sewage in the reaction tank 15 into the sedimentation tank 22, at this time, the hose 6 moves upwards along with the rising of the water level under the action of the plastic disc 52 and the air pump 53, when the sewage is discharged into the sedimentation tank 22 and is sedimented for a period of time, the sludge is settled at the bottom, at this time, the separated water is discharged by the second water pump 16, the water level is lowered while discharging, the hose 6 moves downwards along with the falling of the water level under the action of the plastic disc 52 and the air pump 53, at the same time, the second liquid level sensor 54 on the outer wall of the plastic disc 52 also moves downwards, when most of the separated water is discharged, at this time, the hose 6 contacts the sludge, the falling speed of the second liquid level sensor 54 is abnormal, which indicates that the water is discharged, at this time, the third water pump 20 is turned off, and the sludge pump 18 is started to clean the sludge at the bottom of the sedimentation tank 22.

The above examples only represent a rural sewage treatment system based on buried SBR and a treatment method or several embodiments thereof according to the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims

1. The rural sewage treatment system based on the buried SBR is characterized by comprising a water inlet tank (9), a reaction tank (15) and a sedimentation tank (22), wherein the water inlet tank (9), the reaction tank (15) and the sedimentation tank (22) are all arranged in a treatment tank (8), the treatment tank (8) is arranged in a protective frame (1), sleeves (35) are symmetrically arranged at the top of the protective frame (1), return springs (36) are arranged in the sleeves (35), movable rods (34) are arranged at the tops of the return springs (36), a lower pressing plate (3) is arranged at the top of the movable rods (34), a protective cover (2) is arranged at the top of the lower pressing plate (3), the protective frame (1) is embedded under the ground, the protective cover (2) keeps the same horizontal line with the ground, and when a vehicle passes, the protective cover (2) vibrates and moves downwards, and when the protective cover (2) moves downwards, a conveying mechanism can drive a hairbrush (24) and a first scraping plate (31) to work, and the inner wall of the water inlet tank (9) and the outer wall of the water inlet tank (8) are cleaned respectively;

the two-side outer walls of the lower pressing plate (3) are respectively provided with a connecting block (4) in a rotating mode, the other ends of the connecting blocks (4) are respectively provided with a first pushing plate (5) in a rotating mode, the side walls of the first pushing plates (5) are respectively provided with a first spring telescopic rod (23), the other ends of the first spring telescopic rods (23) are connected with the inner wall of the protective frame (1), the outer parts of the first pushing plates (5) are respectively provided with a first rack (7) and a connecting plate (27), the outer parts of the connecting plates (27) are respectively provided with a second rack (28), the inner parts of the water inlet tanks (9) are symmetrically provided with second guide rods (33), symmetrical first scraping plates (31) are movably arranged on the outer parts of the second guide rods (33), threaded holes for installing second bidirectional screws (32) are respectively formed in the inner parts of the two first scraping plates (31), and second gears (30) meshed with the first racks (7) are arranged on the tops of the second bidirectional screws (32). The outer wall of the treatment pool (8) is provided with a first guide rod (25) and a first bidirectional screw rod (26), the outside of the first guide rod (25) is movably provided with symmetrical brushes (24), threaded holes matched with the first bidirectional screw rod (26) are formed in the two brushes (24), and one end of the first bidirectional screw rod (26) is provided with a first gear (29) meshed with a second rack (28).

2. The rural sewage treatment system based on buried SBR according to claim 1, wherein the inside of the water inlet tank (9) is communicated with a water inlet pipe (10), a filter plate (11) is movably arranged in the water inlet tank (9), a second push plate (37) is arranged on the side wall of the filter plate (11), a second spring telescopic rod (38) is arranged on the side wall of the second push plate (37), one end of the second spring telescopic rod (38) is connected with the side wall of a partition plate (12), the partition plate (12) is connected with the side wall of a reaction box (15), a first rotating rod (41) is rotatably arranged on the side wall of the partition plate (12), a first synchronous wheel (40) is arranged at the top of the first rotating rod (41), and a collision block (42) is arranged on the outer portion of the first rotating rod (41).

3. The rural sewage treatment system based on the buried SBR according to claim 2, wherein the top of the reaction tank (15) is provided with a reactant storage barrel (13), a motor (21), an air pump (19), a third water pump (20) and a first water pump (14), the input end of the third water pump (20) is communicated with the inside of the water inlet tank (9) through a pipeline, the output end of the third water pump (20) is communicated with the inside of the reaction tank (15) through a pipeline, the bottom end of the inside of the reaction tank (15) is provided with an aeration pipe (48), and the aeration pipe (48) is communicated with the output end of the air pump (19) through a pipeline.

4. A rural sewage treatment system based on buried SBR according to claim 3, wherein a second rotating rod (44) is rotatably provided in the reaction tank (15), a second synchronizing wheel (43) is provided outside the second rotating rod (44), the second synchronizing wheel (43) is in transmission connection with the first synchronizing wheel (40) through a synchronous belt (39), and the top of the second rotating rod (44) is connected with an output shaft of the motor (21) through a coupling.

5. The rural sewage treatment system based on the buried SBR according to claim 4, wherein a plurality of connecting rods (46) are provided outside the second rotating rod (44), a plurality of foam piercing needles (47) are provided on the outer wall of the connecting rods (46), a second scraping plate (45) is provided at one end of the connecting rods (46), an electromagnetic valve (50) is provided at the outlet end of the reactant storage tank (13), and a first liquid level sensor (49) is provided on the side wall of the reaction tank (15).

6. The rural sewage treatment system based on buried SBR according to claim 5, wherein the input end of the first water pump (14) is connected to the inside of the reaction tank (15) through a pipe, and the output end of the first water pump (14) is connected to the inside of the sedimentation tank (22) through a pipe.

7. The rural sewage treatment system based on the buried SBR as claimed in claim 6, wherein a supporting plate (17) is arranged in the sedimentation tank (22), a second water pump (16) and a sludge pump (18) are arranged at the top of the supporting plate (17), a hose (6) is communicated with the input end of the second water pump (16), and the input end of the sludge pump (18) is communicated with the interior of the sedimentation tank (22) through a pipeline.

8. The rural sewage treatment system based on the buried SBR, according to claim 7, wherein a limiting rod (51) is arranged on the side wall of the supporting plate (17), a plastic disc (52) is movably arranged outside the limiting rod (51), the plastic disc (52) is connected with the outside of the bottom end of the hose (6), a plurality of air bags (53) are arranged on the outer wall of the plastic disc (52), and a second liquid level sensor (54) is arranged on the outer wall of the plastic disc (52).

9. A rural sewage treatment method based on buried SBR, which adopts the rural sewage treatment system based on buried SBR according to claim 8 to treat rural sewage, characterized in that: the method comprises the following steps:

S1: the protective frame (1) is pre-buried under the ground, the protective cover (2) is kept on the same horizontal line with the ground, when a vehicle passes through, the protective cover (2) vibrates and moves downwards, the protective cover (2) drives the movable rod (34) to move downwards and extrude the return spring (36) when moving downwards, the vibration of the vehicle passing through the treatment tank (8) can be primarily reduced by extruding the return spring (36) through the movable rod (34), the protective cover (2) also drives the connecting block (4) to extrude the first push plate (5) to drive the first push plate to move when moving downwards, the first push plate (5) can extrude the first spring telescopic rod (23) when moving, the vibration of the vehicle passing through the treatment tank (8) can be further reduced by utilizing the first push plate (5) to cooperate with the first spring telescopic rod (23), and the service life of the treatment tank (8) is prevented from being reduced by vibration;

S2: the first pushing plate (5) can reciprocate when being subjected to the elasticity of the first spring telescopic rod (23), so that the first rack (7) and the second rack (28) are driven to reciprocate, the first rack (7) can drive the second gear (30) which is in meshed connection with the first rack (7) to rotate when moving, the second gear (30) can drive the second bidirectional screw (32) to rotate while rotating, the inner wall of the water inlet tank (9) can be cleaned by utilizing the first scraping plates (31) outside the two ends of the second bidirectional screw (32), foreign matters are prevented from accumulating on the inner wall of the water inlet tank (9), the second rack (28) can drive the first gear (29) which is in meshed connection with the second rack to rotate when moving, the first gear (29) can drive the first bidirectional screw (26) to rotate while rotating, and the outer wall of the treatment tank (8) can be cleaned by utilizing the brushes (24) outside the two ends of the first bidirectional screw (26), so that a large amount of dust is prevented from accumulating on the outer wall of the treatment tank (8) in the ground for a long time;

S3: when rural sewage is required to be treated, the sewage is discharged into the water inlet tank (9) by the aid of the water inlet pipe (10), suspended matters and solid particles in the sewage can be filtered by the aid of the filter plate (11) in the water inlet tank (9), meanwhile, the motor (21) is started to drive the second synchronous wheel (43) and the second rotating rod (44) to rotate, the second synchronous wheel (43) is matched with the synchronous belt (39) to work to drive the first synchronous wheel (40) to rotate, the first rotating rod (41) and the abutting block (42) are driven to rotate, the filter plate (11) can be always in a vibrating state by the aid of the abutting block (42) and the second spring telescopic rod (38), the filter holes of the filter plate (11) are prevented from being blocked, and then the sewage in the water inlet tank (9) is discharged into the reaction tank (15) by the aid of the third water pump (20);

S4: when the sewage in the water inlet tank (9) is discharged to the reaction tank (15), the third water pump (20) stops working when the water level rises to the position of the first liquid level sensor (49), the air pump (19) and the electromagnetic valve (50) start working, the sewage in the reaction tank (15) is aerated and oxidized by the air discharged by the air pump (19) and the aeration pipe (48), the electromagnetic valve (50) is opened to enable the reactant in the reactant storage barrel (13) to fall into the sewage, so that the sewage purifying effect is enhanced, the second rotating rod (44) can drive the connecting rod (46) and the second scraping plate (45) to rotate to clean the inner wall of the reaction tank (15) while rotating, and the bubble-puncturing needle (47) on the outer wall of the connecting rod (46) can also rotate to divide bubbles, so that a plurality of small bubbles are formed, the contact area of the bubbles and the sewage is further increased, and the effect of oxidizing microorganisms in the sewage is improved;

S5: after the sewage in the reaction tank (15) is purified for a period of time, the first water pump (14) discharges the sewage in the reaction tank (15) to the interior of the sedimentation tank (22), at the moment, the hose (6) can move upwards along with the rising of the water level under the action of the plastic disc (52) and the air bag (53), after the sewage is discharged to the interior of the sedimentation tank (22) and sediments for a period of time, the sludge can be deposited at the bottom, the separated water is discharged by the second water pump (16), the water level can be lowered while the water level is discharged, the hose (6) can move downwards along with the falling of the water level under the action of the plastic disc (52) and the air bag (53), the second liquid level sensor (54) on the outer wall of the plastic disc (52) can also move downwards, when most of the separated water is discharged, at the moment, the hose (6) can be contacted with the sludge, the descending speed of the second liquid level sensor (54) is abnormal, the water is completely discharged, at the moment, the third water pump (20) is turned off, and the sludge at the bottom of the sedimentation tank (22) is cleaned by starting the third water pump (18).