CN116874076B - Denitrification biological filter denitrification and dephosphorization system with self-cleaning capability - Google Patents
Denitrification biological filter denitrification and dephosphorization system with self-cleaning capability Download PDFInfo
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- CN116874076B CN116874076B CN202311042211.7A CN202311042211A CN116874076B CN 116874076 B CN116874076 B CN 116874076B CN 202311042211 A CN202311042211 A CN 202311042211A CN 116874076 B CN116874076 B CN 116874076B
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- discharge
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- 238000004140 cleaning Methods 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 47
- 239000010865 sewage Substances 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims description 25
- 238000001125 extrusion Methods 0.000 claims description 19
- 239000011148 porous material Substances 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 6
- 239000011574 phosphorus Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 210000005056 cell body Anatomy 0.000 description 23
- 238000011001 backwashing Methods 0.000 description 6
- 238000005189 flocculation Methods 0.000 description 6
- 230000016615 flocculation Effects 0.000 description 6
- 239000013049 sediment Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VGPSUIRIPDYGFV-UHFFFAOYSA-N [N].O[N+]([O-])=O Chemical compound [N].O[N+]([O-])=O VGPSUIRIPDYGFV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2826—Anaerobic digestion processes using anaerobic filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The application relates to a denitrification biological filter nitrogen and phosphorus removal system with self-cleaning capability, which comprises a tank body, a filter plate and a filter material layer, wherein the filter plate and the filter material layer are both positioned in the tank body, the filter plate and the filter material layer are sequentially distributed along the vertical upward direction, and the filter material layer is positioned right above the filter plate; the filter plate is provided with a first inclined surface, the first inclined surface is closer to the bottom of the tank body relative to the filter material layer, the first inclined surface is obliquely arranged relative to the vertical direction, and the filter plate is provided with a plurality of filter holes. The application has the effect of cleaning and collecting massive impurities in sewage.
Description
Technical Field
The application relates to the field of denitrification biological filters, in particular to a denitrification biological filter denitrification and dephosphorization system with self-cleaning capability.
Background
The denitrification deep bed is a structure for removing nitric acid nitrogen and suspended matters from sewage.
In the related art, the denitrification deep bed comprises a tank body, a filter plate, a sewage inlet pipe and a filter material layer, wherein the filter plate and the filter material layer are both positioned in the tank body, the filter plate is fixedly connected to the tank wall of the tank body, the filter material layer is positioned above the filter plate, the filter plate is provided with a plurality of filter holes, the sewage inlet pipe is positioned below the filter plate, and the sewage inlet pipe is communicated with the tank body.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: when in use, the sewage entering from the sewage inlet pipe is provided with massive impurities, the filter plate blocks the massive impurities, and after a period of operation, the filter holes on the filter plate are easily blocked by the massive impurities, so that the working efficiency is reduced.
Disclosure of Invention
In order to reduce the blockage of the filtering holes on the filter plate by massive impurities, the application provides a denitrification and dephosphorization system of a denitrification biological filter with self-cleaning capability.
The denitrification biological filter denitrification and dephosphorization system with the self-cleaning capability adopts the following technical scheme:
the denitrification biological filter nitrogen and phosphorus removal system with the self-cleaning capability comprises a tank body, a filter plate and a filter material layer, wherein the filter plate and the filter material layer are both positioned in the tank body, the filter plate and the filter material layer are sequentially distributed along the vertical upward direction, and the filter material layer is positioned right above the filter plate; the filter plate is provided with a first inclined surface, the first inclined surface is closer to the bottom of the tank body relative to the filter material layer, the first inclined surface is obliquely arranged relative to the vertical direction, and the filter plate is provided with a plurality of filter holes.
Through adopting above-mentioned technical scheme, during the use, sewage gets into the filter plate below, and big impurity is blockked by the filtration pore on the filter plate, and then under the guide of first inclined plane, big impurity is guided to the lateral wall of cell body, reduces the condition emergence that the filtration pore on the filter plate blockked up.
Optionally, a cleaning component is arranged in the filtering hole, the cleaning component comprises a vibrating tube body, a horizontal plate and a spring, the vibrating tube body is positioned in the filtering hole, the vibrating tube body is connected in the filtering hole in a sliding manner along the vertical direction, the spring is vertically arranged, one end of the spring is connected with the filter plate, and the other end of the spring is connected with the vibrating tube body; the horizontal plate is horizontally arranged and connected with the vibrating pipe body, and the horizontal plate is positioned below the filter plate.
Through adopting above-mentioned technical scheme, when sewage passes through the vibrating tube body, because the velocity of flow of sewage is unstable, when sewage strikes the horizontal plate, the horizontal plate drives the vibrating tube body and shakes along vertical direction, and the spring shakes the vibrating tube body, reduces the fritter impurity in the sewage and shakes off, reduces the condition emergence that the filtration pore is blocked by fritter impurity, realizes the filtration pore self-cleaning on the filter plate.
Optionally, the cleaning assembly further comprises a rotating plate, a fixing frame and a driving piece for driving the rotating plate to rotate, wherein the fixing frame is connected with the wall of the filtering hole, the vibrating pipe body is connected to the fixing frame in a sliding mode along the vertical direction, the rotating plate is located in the filtering hole, and the rotating plate is connected to the fixing frame in a rotating mode.
Through adopting above-mentioned technical scheme, during the use, shake from top to bottom in the vibrating tube body, shake off the fritter impurity that originally adheres to in the vibrating tube body inner wall, the driving piece drives the pivoted board and rotates, the pivoted board is with the fritter impurity discharge filter plate on the filtration pore that wafts in the vibrating tube body, the fritter impurity is led to the lateral wall of cell body through the direction of first inclined plane afterwards, reduce the fritter impurity and get into the condition emergence in the filtration pore of filter plate once more, further improve the self-cleaning ability to the filtration pore of filter plate.
Optionally, the driving piece includes rack and gear, the gear with the rotor plate is connected, the gear with the axis of rotation of rotor plate is coaxial to be set up, the vertical setting of rack, the rack with the shock tube body is connected, the rack with the gear meshes the setting mutually.
Through adopting above-mentioned technical scheme, when using, sewage drives the vibration pipe body and shakes along vertical direction for the rack shakes along vertical direction, makes the rack drive gear rotation, and the gear drives the rotor plate and rotates, realizes shaking the fritter impurity in the filtration pore when shaking off, drives the rotor plate and rotates, and the rotor plate drives the fritter impurity in the filtration pore and stirs to one side that the filter plate deviates from the filter material layer, and the fritter impurity is through the lateral wall of the direction of first inclined plane to the cell body afterwards.
Optionally, the mount includes dead lever and fixed framework, the vibrating tube body has the groove of sliding, the dead lever with the pore wall fixed connection of filtration pore, fixed framework is located in the vibrating tube body, the dead lever with fixed framework is connected, the dead lever is located at least part the inslot of sliding, fixed framework at least part with vibrating tube body inner wall contact.
Through adopting above-mentioned technical scheme, during the use, sewage drives vibration pipe body and shakes from top to bottom, and fixed framework and vibration pipe body inner wall contact can clear up the impurity that adheres to on vibration pipe body inner wall, further improves the filter screen internal filter hole self-cleaning ability, realizes that the mount is when as the installation basis of pivoted board in the filter screen, realizes clearing up the impurity that adheres to in the vibration pipe body.
Optionally, the cell body has first collecting plate, first collecting plate slope sets up, first collecting plate with the cell wall of cell body is connected, first collecting plate for first inclined plane slope sets up, first collecting plate is located first inclined plane below, just first collecting plate with there is the clearance between the first inclined plane, first collecting plate with have first storage space between the cell wall of cell body, first collecting plate is from the cell body to being close to the direction on first inclined plane extends.
Through adopting above-mentioned technical scheme, during the use, massive impurity moves to the lateral wall of cell body through the clearance between first collecting plate and the first inclined plane through the direction of first inclined plane, is stored by first storage space afterwards, reduces impurity and diffuses to the filter plate again and deviates from one side of filter material layer, further improves the self-cleaning ability of filtration pore.
Optionally, the tank body is provided with back flush subassembly, back flush subassembly includes back flush pipe and drain pump, back flush pipe is located the filter plate below, the drain pump with back flush pipe is connected, the drain pump is used for taking out sewage in the tank body.
Through adopting above-mentioned technical scheme, after using for a long time, need carry out back flush to filter material layer and filter plate, during back flush, the drain pump discharges the cell body with the interior sewage of cell to take out the cell body with the impurity that is detained in filter material layer and the filter plate, realize back flush to filter material layer and filter plate.
Optionally, the first collecting plate is provided with a discharge assembly, the discharge assembly includes a discharge plate and a torsion spring, the first collecting plate has a discharge through hole, the discharge plate is located the discharge through hole, the discharge plate rotate connect in on the pore wall of the discharge through hole, the torsion spring is used for maintaining the discharge plate blocks the state of discharge through hole.
Through adopting above-mentioned technical scheme, when back flush subassembly carries out the back flush to the cell body in, sewage drives the discharge plate and rotates for the discharge through-hole is opened, makes the impurity in the first storage space discharge through the discharge through-hole, and after the discharge, the torsional spring drives the discharge plate to the state that stops the discharge through-hole, realizes recycling.
Optionally, the cell body is provided with the pan feeding subassembly, the pan feeding subassembly includes pan feeding runner, feed pump and pan feeding pipe, pan feeding pipe one end with the pan feeding runner intercommunication, the pan feeding pipe other end with the cell body intercommunication just the pan feeding pipe other end is located the filter plate below, the feed pump with the pan feeding union coupling.
Through adopting above-mentioned technical scheme, during the use, the sewage in the pan feeding runner is driven to the cell body through the pan feeding pipe to the pan feeding pump, simple structure convenient operation.
Optionally, the feeding runner is provided with a feeding component, the feeding component comprises a storage pipe body, an extrusion screw and a driving motor for driving the extrusion screw to rotate, the storage pipe body is vertically arranged, the storage pipe body is positioned right above the tank body, the storage pipe body is connected with the feeding runner, the extrusion screw is vertically arranged, the extrusion screw is positioned in the storage pipe body, and the extrusion screw is rotationally connected with the storage pipe body; the storage pipe body is internally used for storing flocculant.
Through adopting above-mentioned technical scheme, during the use, driving motor drives and extrudes the screw rod and rotate, extrudes the screw rod and drives the internal flocculating agent of storage pipe, realizes continuously adding the flocculating agent to the pan feeding runner, realizes removing the phosphorus in the sewage, removes the phosphorus in the sewage under the flocculation effect of flocculating agent, and the precipitate that flocculation produced gets into the cell body through the pan feeding pipe to get into in the first storage space under the direction of first inclined plane, when realizing the precipitate to flocculation production clear up, will integrate in a cell body to the dephosphorization and the denitrogenation of sewage to the influence of the precipitate to the filter plate that flocculation produced has been reduced under the circumstances as far as possible.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the large-scale impurities in the sewage are cleaned and collected through the first inclined surface;
2. through the vibrating tube body, the spring, the rotating plate, the fixing frame, the rack and the gear, the impurities in the filter holes are shaken off and scraped off, and meanwhile, part of the impurities in the filter holes are discharged out of the filter holes;
3. the impurities in the first storage space are cleaned through the back flushing assembly and the discharge assembly, and the filter holes and the filter material layer are reversely flushed;
4. the functions of denitrification and dephosphorization are integrated through the feeding component, and the influence of sediments generated by flocculation on the filter plate is reduced.
Drawings
Fig. 1 is a schematic structural view of a specific embodiment of the present application.
Fig. 2 is a schematic view of the cleaning assembly of fig. 1.
Fig. 3 is a cross-sectional view of fig. 2 for illustrating the structure of the cleaning assembly.
Fig. 4 is an enlarged view of circle a in fig. 3 for showing the gear and rack.
Fig. 5 is an enlarged view of circle B in fig. 1.
Fig. 6 is an enlarged view of circle C in fig. 1.
Fig. 7 is a schematic view of the structure of the discharge through hole, the discharge plate and the second collecting plate of fig. 1, in a state in which the discharge plate is flushed by the backwash assembly.
Reference numerals: 1. a cell body; 11. a support part; 12. an aeration pipe; 13. a filter material layer; 2. a filter plate; 21. a first inclined surface; 22. a second inclined surface; 23. filtering holes; 24. a first collection plate; 25. a first storage space; 26. a second collection plate; 27. a second storage space; 3. a cobble layer; 4. a feeding assembly; 41. a feeding runner; 42. a feeding pump; 43. a feeding pipe; 5. a cleaning assembly; 51. a vibrating tube; 511. a slip groove; 52. a horizontal plate; 53. a spring; 54. a rotating plate; 55. a rotating lever; 56. a fixing frame; 561. a fixed rod; 562. fixing the frame; 57. a driving member; 571. a rack; 572. a fixed block; 573. a gear; 6. a back flushing assembly; 61. a back flushing pipe; 62. a draining pump; 7. a discharge assembly; 71. a discharge plate; 72. a discharge through hole; 8. a feeding assembly; 81. a storage tube body; 82. a storage hopper; 83. a fixing seat; 84. extruding a screw; 85. and driving the motor.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-7.
The embodiment of the application discloses a denitrification and dephosphorization system of a denitrification biological filter with self-cleaning capability. Referring to fig. 1, a denitrification biological filter nitrogen and phosphorus removal system with self-cleaning capability comprises a tank body 1, a supporting part 11, a filter plate 2, a plurality of aeration pipes 12 and a filter material layer 13, wherein the filter plate 2 and the filter material layer 13 are all positioned in the tank body 1, the filter plate 2 is fixedly connected to the tank wall of the tank body 1, the filter material layer 13 and the plurality of aeration pipes 12 are all positioned right above the filter plate 2, the plurality of aeration pipes 12 are positioned in the filter material layer 13, the filter plate 2 is provided with a first inclined surface 21, the first inclined surface 21 is closer to the tank bottom of the tank body 1 relative to the filter material layer 13 along the vertical direction, and the first inclined surface 21 is obliquely arranged relative to the vertical direction; the filter plate 2 has a plurality of filter holes 23, and the filter holes 23 are all vertically arranged, and the filter holes 23 are arranged penetrating the filter plate 2. Specifically, the filter material layer 13 comprises a plurality of porous biological filter materials, and a cobble layer 3 is arranged between the filter material layer 13 and the filter plate 2.
In some embodiments, referring to fig. 1, the filter plate 2 has a second inclined surface 22, the second inclined surface 22 being inclined in the opposite direction to the first inclined surface 21, the second inclined surface 22 being inclined with respect to the vertical direction, the second inclined surface 22 being inclined with respect to the first inclined surface 21, and the junction between the first inclined surface 21 and the second inclined surface 22 being disposed near the bottom of the tank 1.
Referring to fig. 1, the support 11 is vertically provided, one end of the support 11 is connected to the bottom of the tank 1, and the other end of the support 11 is connected to the first inclined surface 21 or the second inclined surface 22.
Referring to fig. 1, a tank body 1 is provided with a feeding assembly 4, the feeding assembly 4 includes a feeding flow channel 41, a feeding pump 42 and a feeding pipe 43, one end of the feeding pipe 43 is communicated with the feeding flow channel 41, the other end of the feeding pipe 43 is communicated with the tank body 1, the other end of the feeding pipe 43 is located below a filter plate 2, and the feeding pump 42 is connected with the feeding pipe 43.
In some embodiments, referring to fig. 1 and 2, a cleaning assembly 5 is disposed in the filter hole 23, the cleaning assembly 5 including a shock tube 51, a horizontal plate 52, and a spring 53, the shock tube 51 being slidingly coupled in a vertical direction in the filter hole 23; the lower end of the vibrating tube 51 is provided with a filtering hole 23 in a penetrating way, a horizontal plate 52 is fixedly connected to the outer side wall of the lower end of the vibrating tube 51, and the horizontal plate 52 is positioned at one side of the filter plate 2, which is away from the filtering material layer 13; the spring 53 is vertically arranged, the spring 53 is sleeved on the vibrating tube body 51, the spring 53 is positioned between the horizontal plate 52 and the filter plate 2, one end of the spring 53 is fixedly connected with the horizontal plate 52, and the other end of the spring 53 is fixedly connected with the filter plate 2.
In some embodiments, referring to fig. 2 and 3, the cleaning assembly 5 further includes a rotation plate 54, a rotation rod 55, a fixing frame 56, and a driving member 57 for driving the rotation plate 54 to rotate, the driving member 57 includes a rack 571, a fixing block 572, and a gear 573, and the fixing frame 56 includes two fixing rods 561 and a fixing frame 562.
Referring to fig. 2 and 3, the vibrating tube 51 has two sliding grooves 511, the sliding grooves 511 are all vertically arranged, the two sliding grooves 511 are uniformly distributed along the axial direction of the vibrating tube 51, the two fixing rods 561 are in one-to-one correspondence with the two sliding grooves 511, the fixing rods 561 are at least partially positioned in the sliding grooves 511, the length direction of the fixing rods 561 is parallel to the radial direction of the filtering holes 23, the two fixing rods 561 are fixedly connected to the wall of the filtering holes 23, the fixing frame 562 is positioned between the two fixing rods 561 and positioned in the vibrating tube 51, the fixing frame 562 is fixedly connected with the two fixing rods 561, and the fixing frame 562 is in contact with the inner wall of the vibrating tube 51.
Referring to fig. 2 and 3, the length direction of the rotation rod 55 is parallel to the radial direction of the filter hole 23, the rotation rod 55 is located in the fixed frame 562, the rotation rod 55 is rotatably connected with the fixed frame 562, the rotation plate 54 is at least partially located in the fixed frame 562, the rotation plate 54 is fixedly connected with the rotation rod 55, and the rotation plate 54 is located at one side of the rotation rod 55.
Referring to fig. 3 and 4, the gear 573 is coaxially disposed with the rotation lever 55, and the gear 573 is fixedly connected to the rotation lever 55, the gear 573 being located in the fixed frame 562; the fixed block 572 is positioned above the gear 573, the fixed block 572 is fixedly connected with the inner wall of the shock tube 51, the rack 571 is vertically arranged, the upper end of the rack 571 is fixedly connected with the fixed block 572, the rack 571 is positioned on one side of the gear 573, and the gear 573 is meshed with the rack 571; the rack 571 is located between the rotating plate 54 and the inner wall of the fixed frame 562.
In some embodiments, referring to fig. 1, the cell body 1 has a first collecting plate 24, the first collecting plate 24 is located below the first inclined surface 21, and the first collecting plate 24 is disposed obliquely with respect to the first inclined surface 21; along the vertical direction, the first collecting plate 24 has a first end and a second end, the first end is connected with the inside wall of the cell body 1, the second end is located the one end that the first collecting plate 24 kept away from the cell body 1, the distance between the first end and the bottom of the cell body 1 is less than the distance between the second end and the bottom of the cell body 1, the inclination direction of the first collecting plate 24 and the first inclined surface 21 is opposite, a gap for passing through impurities in sewage exists between the second end of the first collecting plate 24 and the first inclined surface 21, and a first storage space 25 for storing impurities in sewage is formed among the first collecting plate 24, the first inclined surface 21 and the cell wall of the cell body 1.
In some embodiments, referring to fig. 1, the tank 1 has a second collecting plate 26, the second collecting plate 26 is located below the second inclined surface 22, and the second collecting plate 26 is disposed obliquely with respect to the second inclined surface 22, the second collecting plate 26 has a third end and a fourth end, the third end is connected with an inner sidewall of the tank 1, the fourth end is located at an end of the second collecting plate 26 away from the tank 1, a distance between the third end and a bottom of the tank 1 is smaller than a distance between the fourth end and the bottom of the tank 1, an inclination direction of the second collecting plate 26 is opposite to that of the second inclined surface 22, a gap for passing impurities in sewage is formed between the fourth end of the second collecting plate 26 and the second inclined surface 22, and a second storage space 27 for storing impurities in sewage is formed between the second collecting plate 26, the second inclined surface 22, and a tank wall of the tank 1.
Referring to fig. 1, a tank body 1 is provided with a back washing assembly 6, the back washing assembly 6 includes a back washing pipe 61 and a drain pump 62, one end of the back washing pipe 61 is connected with a bottom of the tank body 1 and the back washing pipe 61 is communicated with the interior of the tank body 1, the drain pump 62 is connected with the back washing pipe 61, and the drain pump 62 is used for pumping out sewage in the tank body 1.
In some embodiments, referring to fig. 1, 5 and 7, the first collecting plate 24 is provided with a discharge assembly 7, the discharge assembly 7 includes a discharge plate 71 and a torsion spring, the first collecting plate 24 has a discharge through hole 72, the discharge plate 71 is located in the discharge through hole 72, the discharge plate 71 is used to block the discharge through hole 72, the discharge plate 71 is rotatably connected to a wall of the discharge through hole 72, and the discharge plate 71 is rotated in a vertical direction, the torsion spring is coaxially disposed with a rotation axis of the discharge plate 71, one end of the torsion spring is fixedly connected with the discharge plate 71, the other end of the torsion spring is fixedly connected with the first collecting plate 24, and the torsion spring is used to maintain a state that the discharge plate 71 blocks the discharge through hole 72.
In some embodiments, referring to fig. 1 and 6, a feeding assembly 8 is provided on a feeding runner 41, the feeding assembly 8 includes a material storage pipe 81, a material storage hopper 82, a fixing base 83, an extrusion screw 84, and a driving motor 85 for driving the extrusion screw 84 to rotate, the material storage hopper 82 is located above the feeding runner 41, the material storage hopper 82 is fixedly connected with the feeding runner 41, the lower end of the material storage hopper 82 is fixedly connected and communicated with one end of the material storage pipe 81, the material storage pipe 81 is vertically arranged, the fixing base 83 is located above the material storage pipe 81 and the fixing base 83 is located in the material storage hopper 82, the fixing base 83 has a plurality of material leakage through holes, the driving motor 85 is located above the fixing base 83, the driving motor 85 is fixedly connected with the fixing base 83, the extrusion screw 84 is located under the fixing base 83, the extrusion screw 84 is vertically arranged and the upper end of the extrusion screw 84 is rotationally connected with the fixing base 83, the extrusion screw 84 is at least partially located in the material storage pipe 81, and an output shaft of the driving motor 85 is coaxially and fixedly connected with the extrusion screw 84; specifically, the storage hopper 82 and the storage pipe 81 are used to store flocculant.
The denitrification biological filter denitrification and dephosphorization system with self-cleaning capability has the implementation principle that: when the dephosphorization device is used, the drive motor 85 drives the extrusion screw 84 to rotate, the extrusion screw 84 drives the flocculant in the storage hopper 82 to be continuously added into the sewage in the feeding flow channel 41, and phosphorus in the sewage is flocculated to form a precipitate through flocculation, so that dephosphorization of the sewage is realized.
The feed pump 42 pumps the sewage and the sediment in the feed flow passage 41 into the tank body 1, the filter holes 23 on the filter plate 2 block the massive impurities and the sediment in the sewage, and the first inclined surface 21 and the second inclined surface 22 guide the sediment and the massive impurities and the sediment in the sewage into the first storage space 25 and the second storage space 27.
The sewage strikes horizontal plate 52 and makes vibrating tube 51 shake from top to bottom, reduces the condition that impurity attached to vibrating tube 51 inner wall, if impurity still attached to vibrating tube 51 inner wall, the relative motion between mount 56 and the vibrating tube 51 realizes that the impurity attached to vibrating tube 51 inner wall scrapes.
When the vibrating tube 51 shakes up and down, the rack 571 drives the gear 573 to rotate, the gear 573 drives the rotating plate 54 to rotate, the rotating plate 54 discharges a part of floating impurities in the filter holes 23 to one side of the filter plate 2, which is far away from the filter material layer 13, and the impurities are guided into the first storage space 25 and the second storage space 27 again through the first inclined surface 21 and the second inclined surface 22, so that the movement of the vibrating tube 51, the horizontal plate 52 and the rotating plate 54 improves the mixing reaction of sewage and residual flocculant to a certain extent to stir, and improves the reaction rate of the sewage and the residual flocculant.
When the tank body 1 is backwashed, the drain pump 62 discharges water in the tank body 1, the water flow brings out impurities in the filter material layer 13 and the filter holes 23, and the water flow drives the discharge plate 71 to rotate in a downward direction, so that the discharge through holes 72 are opened, impurities and sediments in the storage space are discharged into the tank body 1 along with the water flow, and then the water flow is reset under the action of the torsion spring.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. A denitrification biological filter denitrification and dephosphorization system with self-cleaning capability is characterized in that: the filter plate comprises a tank body (1), a filter plate (2) and a filter material layer (13), wherein the filter plate (2) and the filter material layer (13) are both positioned in the tank body (1), the filter plate (2) and the filter material layer (13) are sequentially distributed along the vertical upward direction, and the filter material layer (13) is positioned right above the filter plate (2); the filter plate (2) is provided with a first inclined surface (21), the first inclined surface (21) is closer to the bottom of the tank body (1) relative to the filter material layer (13), the first inclined surface (21) is obliquely arranged relative to the vertical direction, and the filter plate (2) is provided with a plurality of filter holes (23); the filter comprises a filter hole (23), wherein a cleaning assembly (5) is arranged in the filter hole (23), the cleaning assembly (5) comprises a vibrating tube (51), a horizontal plate (52) and a spring (53), the vibrating tube (51) is positioned in the filter hole (23), the vibrating tube (51) is connected in the filter hole (23) in a sliding manner along the vertical direction, the spring (53) is vertically arranged, one end of the spring (53) is connected with the filter plate (2), and the other end of the spring (53) is connected with the vibrating tube (51); the horizontal plate (52) is horizontally arranged, the horizontal plate (52) is connected with the vibrating tube body (51), and the horizontal plate (52) is positioned below the filter plate (2).
2. The denitrification and dephosphorization system with self-cleaning capacity for a denitrification biofilter according to claim 1, wherein: the cleaning assembly (5) further comprises a rotating plate (54), a fixing frame (56) and a driving piece (57) for driving the rotating plate (54) to rotate, the fixing frame (56) is connected with the wall of the filtering hole (23), the vibrating tube body (51) is connected to the fixing frame (56) in a sliding mode along the vertical direction, the rotating plate (54) is located in the filtering hole (23), and the rotating plate (54) is connected to the fixing frame (56) in a rotating mode.
3. The denitrification and dephosphorization system with self-cleaning capacity for a denitrification biofilter according to claim 2, wherein: the driving piece (57) comprises a rack (571) and a gear (573), the gear (573) is connected with the rotating plate (54), the gear (573) and the rotating axis of the rotating plate (54) are coaxially arranged, the rack (571) is vertically arranged, the rack (571) is connected with the vibrating tube body (51), the rack (571) is located on one side of the gear (573), and the rack (571) is meshed with the gear (573).
4. A denitrification and dephosphorization system of a denitrification biofilter with self-cleaning capability according to claim 3, characterized in that: the utility model discloses a vibrating tube body, including mount (56), vibrating tube body (51) is including dead lever (561) and fixed framework (562), vibrating tube body (51) has groove (511) that slide, dead lever (561) with the pore wall fixed connection of filtration pore (23), fixed framework (562) are located vibrating tube body (51) are interior, dead lever (561) with fixed framework (562) are connected, dead lever (561) are located at least partially in groove (511) that slide, fixed framework (562) at least partially with vibrating tube body (51) inner wall contact.
5. The denitrification and dephosphorization system with self-cleaning capacity for a denitrification biofilter according to claim 1, wherein: the pool body (1) is provided with a first collecting plate (24), the first collecting plate (24) is obliquely arranged, the first collecting plate (24) is connected with a pool wall of the pool body (1), the first collecting plate (24) is obliquely arranged relative to the first inclined surface (21), the first collecting plate (24) is positioned below the first inclined surface (21), a gap exists between the first collecting plate (24) and the first inclined surface (21), a first storage space (25) is reserved between the first collecting plate (24) and the pool wall of the pool body (1), and the first collecting plate (24) extends from the pool body (1) to a direction close to the first inclined surface (21).
6. The denitrification and dephosphorization system with self-cleaning capacity for a denitrification biofilter according to claim 5, wherein: the tank body (1) is provided with a back flushing assembly (6), the back flushing assembly (6) comprises a back flushing pipe (61) and a drainage pump (62), the back flushing pipe (61) is located below the filter plate (2), the drainage pump (62) is connected with the back flushing pipe (61), and the drainage pump (62) is used for pumping out sewage in the tank body (1).
7. The denitrification and dephosphorization system with self-cleaning capacity for a denitrification biofilter according to claim 6, wherein: the first collecting plate (24) is provided with a discharge assembly (7), the discharge assembly (7) comprises a discharge plate (71) and a torsion spring, the first collecting plate (24) is provided with a discharge through hole (72), the discharge plate (71) is positioned on the discharge through hole (72), the discharge plate (71) is rotationally connected to the hole wall of the discharge through hole (72), and the torsion spring is used for maintaining the state that the discharge plate (71) blocks the discharge through hole (72).
8. The denitrification and dephosphorization system with self-cleaning capacity for a denitrification biofilter according to claim 1, wherein: the pool body (1) is provided with pan feeding subassembly (4), pan feeding subassembly (4) include pan feeding runner (41), pan feeding pump (42) and pan feeding pipe (43), pan feeding pipe (43) one end with pan feeding runner (41) intercommunication, pan feeding pipe (43) the other end with pool body (1) intercommunication just the pan feeding pipe (43) other end is located filter plate (2) below, pan feeding pump (42) with pan feeding pipe (43) are connected.
9. The denitrification and dephosphorization system with self-cleaning capacity for a denitrification biofilter according to claim 8, wherein: the feeding runner (41) is provided with a feeding component (8), the feeding component (8) comprises a storage pipe body (81), an extrusion screw (84) and a driving motor (85) for driving the extrusion screw (84) to rotate, the storage pipe body (81) is vertically arranged, the storage pipe body (81) is positioned right above the tank body (1), the storage pipe body (81) is connected with the feeding runner (41), the extrusion screw (84) is vertically arranged, the extrusion screw (84) is positioned in the storage pipe body (81), and the extrusion screw (84) is rotationally connected with the storage pipe body (81); the storage pipe body (81) is used for storing flocculating agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311042211.7A CN116874076B (en) | 2023-08-16 | 2023-08-16 | Denitrification biological filter denitrification and dephosphorization system with self-cleaning capability |
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|---|---|---|---|
| CN202311042211.7A CN116874076B (en) | 2023-08-16 | 2023-08-16 | Denitrification biological filter denitrification and dephosphorization system with self-cleaning capability |
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| CN116874076B true CN116874076B (en) | 2024-01-30 |
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| CN116874076A (en) | 2023-10-13 |
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