CN112759079A - Three-dimensional integrated sewage treatment process system - Google Patents
Three-dimensional integrated sewage treatment process system Download PDFInfo
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- CN112759079A CN112759079A CN202011490881.1A CN202011490881A CN112759079A CN 112759079 A CN112759079 A CN 112759079A CN 202011490881 A CN202011490881 A CN 202011490881A CN 112759079 A CN112759079 A CN 112759079A
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- 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
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
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Abstract
The utility model relates to a three-dimensional integrated sewage treatment process system, it includes AAO technology pond, AAO technology pond includes by lower supreme setting and the anaerobism pond that communicates in proper order, oxygen deficiency pond and good oxygen pond, separate through the baffle respectively between anaerobism pond and the oxygen deficiency pond and between oxygen deficiency pond and the good oxygen pond, it is provided with the through-hole to run through on the baffle, anaerobism pond intercommunication is provided with first inlet tube, the overflow mouth has been seted up to good oxygen pond upper end, be provided with aeration equipment in the good oxygen pond, good oxygen pond intercommunication has outer back flow, the one end that good oxygen pond was kept away from to outer back flow is linked together with the anaerobism pond, outer back flow is provided with first valve with the intercommunication department in good oxygen pond, good oxygen pond intercommunication has interior back flow, the one end and the oxygen deficiency pond intercommunication in good oxygen pond are kept away from. This application has the effect of solving the great problem of sewage treatment device area.
Description
Technical Field
The application relates to the field of sewage treatment equipment, in particular to a three-dimensional integrated sewage treatment process system.
Background
At present, the AAO process is also called as A2O process, is a common sewage treatment process, can be used for secondary sewage treatment or tertiary sewage treatment, and has good effect of removing organic matters when reclaimed water is reused for nitrogen and phosphorus removal.
In the related art, chinese patent publication No. CN110563139A discloses an AAO process sewage treatment apparatus, which includes a tank body, and eight functional tanks, i.e., a water inlet adjusting tank, an anaerobic tank, an anoxic tank, an aerobic tank, a mixed liquid tank, a sedimentation tank, a sludge tank, and a water outlet disinfection tank, are respectively provided, and the functional tanks are separated by partition plates.
Aiming at the related technologies, the inventor thinks that the defect of large floor area exists because the water inlet adjusting tank, the anaerobic tank, the anoxic tank, the aerobic tank, the mixed liquid tank, the sedimentation tank, the sludge tank and the water outlet disinfection tank are arranged horizontally.
Disclosure of Invention
In order to solve the problem that sewage treatment equipment occupies a large area, the application provides a three-dimensional integrated sewage treatment process system.
The application provides a three-dimensional integrated sewage treatment process system adopts following technical scheme:
a three-dimensional integrated sewage treatment process system comprises an AAO process tank, wherein the AAO process tank comprises an anaerobic tank, an anoxic tank and an aerobic tank which are arranged from bottom to top and are sequentially communicated, the anaerobic tank and the anoxic tank and the aerobic tank are respectively separated by a clapboard, a through hole is arranged on the clapboard in a penetrating way, the anaerobic tank is communicated with a first water inlet pipe, the upper end of the aerobic tank is provided with an overflow port, an aeration device is arranged in the aerobic tank, the aerobic tank is communicated with an outer return pipe, one end of the outer return pipe, which is far away from the aerobic tank, is communicated with the anaerobic tank, a first valve is arranged at the communication position of the outer return pipe and the aerobic tank, the aerobic tank is communicated with an inner return pipe, one end of the inner return pipe, which is far away from the aerobic tank, is communicated with the anoxic tank, and a second valve is arranged at the communication part of the inner return pipe and the aerobic tank.
By adopting the technical scheme, in the process of sewage treatment, sewage carrying phosphorus-containing return sludge enters the anaerobic tank through the water inlet pipe, the sewage releases phosphorus in the anaerobic tank, and meanwhile, part of organic matters in the sewage are aminated; sewage enters the anoxic tank for denitrification through a through hole on a partition plate between the anaerobic tank and the anoxic tank; sewage enters the aerobic tank through the through holes in the partition plate between the anoxic tank and the aerobic tank, and is oxygenated in the aerobic tank through the aeration device, so that the sewage is nitrified and absorbs phosphorus in the aerobic tank. In the AAO process, the aerobic tank needs to supplement water into the anoxic tank through the inner return pipe for denitrification, the second valve on the inner return pipe is normally opened, and in the process of carrying out aeration and oxygen increasing on the aerobic tank through the aeration device, the pressure in the aerobic tank is higher than that in the anoxic tank, so that part of sewage in the aerobic tank can be pressed into the anoxic tank through the inner return pipe for water supplement. Thereby carrying out denitrification; the first valve on the outer return pipe is normally closed, because the sewage in the aerobic tank belongs to a mud-water mixing state in the aeration process, the pressure in the aerobic tank is greater than that in the anaerobic tank, when the sludge needs to be supplemented into the anaerobic tank, the first valve is opened, so that part of the sewage in the aerobic tank can be pressed into the anaerobic tank through the outer return pipe to supplement the sludge, a water pumping device does not need to be additionally arranged in the processes of inner and outer return, and the energy-saving effect is achieved.
Preferably, a sewage pretreatment device is arranged outside the AAO process pool and comprises an adjusting tank and a sewage blocking grid, the sewage blocking grid is arranged at the opening of the adjusting tank, the adjusting tank is communicated with the anaerobic tank through a first water inlet pipe, a lifting device for lifting the sewage blocking grid is arranged outside the adjusting tank, the lifting device comprises a water collecting tank, a fixed pulley and a connecting rope, the water collecting tank is hollow, the weight of the water collecting tank is equal to that of the sewage blocking grid, the water collecting tank is communicated with the adjusting tank through a second water inlet pipe, a third valve is arranged on the second water inlet pipe, the lower end of the water collecting tank is communicated with the adjusting tank through a return pipe, a fourth valve is arranged on the return pipe, a vertical rod is arranged at the upper end of the adjusting tank, the fixed pulley is rotatably connected to one end, away from the adjusting tank, of the vertical rod, the connecting rope is in lap joint and is slidably connected to, the both ends of connecting the rope are connected with header tank and trash rack respectively, the vertical guide bar that is provided with in the equalizing basin, be provided with the sleeve on the trash rack, the muffjoint is located outside the guide bar and with guide bar sliding connection, the equalizing basin is worn out to the guide bar upper end and is connected with and supplies the gliding arc pole of sleeve, the orthographic projection that guide bar one end was kept away from to the arc pole is located outside the equalizing basin, an equalizing basin lateral surface is provided with just keeps away from the collecting vat of guide bar one end to the arc pole.
Through adopting above-mentioned technical scheme, through being provided with sewage pretreatment device, before sewage gets into AAO technology pond, the equalizing basin can carry out water regulation, water quality balance and preliminary treatment to sewage, and on the other hand blocks dirty grid through being provided with, before sewage gets into the equalizing basin, intercepts the filtration to the large-scale impurity in the sewage. In this in-process, when impurity on the trash rack is collected the certain degree and needs to clear up, open the third valve to make sewage enter into to the header tank through the second inlet tube in the equalizing basin, make the weight of header tank increase, and exceed the weight of trash rack and trash rack on impurity, so the header tank descends and drives the trash rack through connecting the rope and rises along the length direction of guide bar, thereby promotes impurity. Along with the water yield increase in the header tank for the weight of header tank constantly increases, trash rack along the guide bar and with arc pole sliding connection, thereby make trash rack wear out behind the equalizing basin along the arc of arc pole towards the collecting vat and slope, thereby in pouring into the collecting vat with the impurity on the trash rack, thereby be convenient for reduce impurity and remain on trash rack, need not additionally add drive arrangement, have energy-conserving effect. Accomplish the clearance back of remaining impurity on the trash rack, close the third valve, open the fourth valve again, make the water in the water-collecting tank pass through the back flow and get into to the equalizing basin in, make the weight of header tank reduce to the weight that equals with the trash rack, at this in-process, the trash rack moves along the arc pole, break away from back again with guide bar sliding connection with the arc pole, make the trash rack reset, header tank and trash rack reach relative balance through connecting the rope in the fixed pulley both sides, the trash rack of being convenient for intercepts large-scale impurity at the equalizing basin opening part again.
Preferably, the arc-shaped rod is sleeved with a spring, and one end of the spring is connected with one end, far away from the guide rod, of the arc-shaped rod.
Through adopting above-mentioned technical scheme, through the cover is equipped with the spring on the arc pole, when blocking the dirty grid and slide into on the arc pole along the guide bar, block the dirty grid and extrude the spring on the arc pole, block the in-process that the dirty grid resets, the spring after the compression can promote blocking the dirty grid for block the dirty grid and can reset under self gravity and the auxiliary action of spring, make and block the dirty grid and can reset smoothly.
Preferably, the equalizing basin includes regulatory region and overflow district, the overflow district is linked together with the regulatory region lower extreme, the intercommunication department of overflow district and regulatory region is provided with the first check valve of unidirectional flow in the overflow pond, the overflow district is linked together through first inlet tube and anaerobism pond, the intercommunication department of first inlet tube and overflow district is higher than the overflow mouth in good oxygen pond, be provided with the second check valve that is used for water to flow to anaerobism pond by overflow district unidirectional flow on the first inlet tube.
Through adopting above-mentioned technical scheme, the sewage through the equalizing basin regulatory region is through first check valve one-way flow to the overflow district in, along with the overflow district in the water level increase gradually, because the overflow district is higher than the overflow mouth in good oxygen pond with the intercommunication department of first inlet tube, so when the water level in the overflow district reachs the height with first inlet tube intercommunication department, and under the effect of second check valve, make the sewage in the overflow district can one-way flow in the anaerobism pond, thereby need not additionally add pumping plant, energy-conserving effect has.
Preferably, a secondary sedimentation tank is further arranged outside the AAO process tank, the secondary sedimentation tank is communicated with an overflow port of the aerobic tank through an overflow pipe, the communication position of the overflow pipe and the aerobic tank is higher than the communication position of the overflow pipe and the secondary sedimentation tank, a flow guide inclined pipe is communicated with the bottom of the secondary sedimentation tank, and a fifth valve is arranged on the flow guide inclined pipe.
By adopting the technical scheme, the communication position of the overflow pipe and the aerobic tank is higher than the communication position of the overflow pipe and the secondary sedimentation tank, so that sewage overflowing from the aerobic tank can overflow into the secondary sedimentation tank through the overflow pipe, and the sewage overflowing from the AAO process tank is subjected to secondary sedimentation and mud-water separation; meanwhile, the bottom of the secondary sedimentation tank is communicated with a diversion inclined pipe, and when the anaerobic tank needs to be supplemented with sludge, the fifth valve is opened, so that the sludge at the bottom in the secondary sedimentation tank is supplemented towards the anaerobic tank through the diversion inclined pipe.
Preferably, the diversion inclined tube is internally provided with a rotating shaft in a penetrating manner and is rotatably connected with the length direction of the diversion inclined tube, the rotating shaft is spirally wound with spiral blades along the length direction of the rotating shaft, the upper end of the rotating shaft penetrates out of the diversion inclined tube and is coaxially sleeved with a first bevel gear, a second bevel gear with a rotating axis perpendicular to the first bevel gear is meshed with the first bevel gear, a support for the second bevel gear to be rotatably connected is arranged outside the diversion inclined tube, and a rotating handle is coaxially arranged on the second bevel gear and faces downwards.
Through adopting above-mentioned technical scheme, when the water conservancy diversion pipe chute supplyed mud in the anaerobism pond towards, rotate second bevel gear through the turning handle, second bevel gear drives first bevel gear and rotates for first bevel gear drives the pivot and rotates, thereby in the silt that will get into in the honeycomb duct promoted into the anaerobism pond through helical blade, effectively avoided mud to take place to block up in the honeycomb duct.
Preferably, the flow guide inclined pipe is communicated with the lower end of the secondary sedimentation tank through a three-way pipe, the three-way pipe is provided with an output end and two input ends, the output end of the three-way pipe is communicated with the secondary sedimentation tank, one input end of the three-way pipe is communicated with the flow guide inclined pipe, the other input end of the three-way pipe is communicated with a sewage discharge pipe, and the sewage discharge pipe is provided with a sixth valve.
By adopting the technical scheme, the three-way pipe is arranged, when sludge needs to be supplemented into the anaerobic tank, the sixth valve is closed, and the fifth valve is opened, so that the sludge in the secondary sedimentation tank enters the flow guide inclined pipe after passing through the three-way pipe, and then enters the secondary sedimentation tank through the flow guide inclined pipe; when the sludge is not required to be supplemented into the anaerobic tank, the sixth valve is opened, and the fifth valve is closed, so that the sludge in the secondary sedimentation tank is conveniently discharged outside through the sewage discharge pipe.
Preferably, the vertical observation window that is provided with on the anaerobism pond, there are first scraper blade and second scraper blade in the both sides difference sliding connection outside the anaerobism pond of observation window along its length direction, all be provided with magnet in the first scraper blade and in the second scraper blade, first scraper blade and second scraper blade pass through the magnet and adsorb mutually, just first scraper blade and second scraper blade offset tightly with the observation window respectively.
By adopting the technical scheme, the observation window is arranged, so that the sludge amount in the anaerobic tank can be conveniently observed, and the sludge can be conveniently supplemented into the anaerobic tank; simultaneously through being provided with first scraper blade and second scraper blade, be stained with mud on the observation window, when the observation of not being convenient for, the second scraper blade that slides outside the anaerobism pond along the length direction of observation window, the second scraper blade passes through magnet and drives first scraper blade and slide along the length direction of observation window in the anaerobism pond to the mud of the inside and outside both sides of observation window is cleared up, reduces the residue of mud on the observation window.
In summary, the present application includes at least one of the following beneficial technical effects:
the AAO process tank is characterized in that the anaerobic tank, the anoxic tank and the aerobic tank are sequentially and vertically communicated, so that the AAO process adopts a vertical relation, and the problem of large occupied area of sewage treatment equipment is solved;
when sludge needs to be supplemented into the anaerobic tank, the first valve is opened, so that oxygen can press part of the sewage in the aerobic tank into the anaerobic tank through the outer return pipe for supplementing the sludge, and a water pumping device does not need to be additionally arranged in the processes of inner and outer return, so that the energy-saving effect is achieved;
when the impurity on the trash rack is collected to a certain degree and needs to be cleared up, open the third valve to make sewage enter into to the header tank through the second inlet tube in the equalizing basin, make the weight of header tank increase, and exceed the weight of impurity on trash rack and the trash rack, so the header tank descends and drives the trash rack through connecting the rope and rise along the length direction of guide bar, thereby promotes impurity. Along with the water yield increase in the header tank for the weight of header tank constantly increases, trash rack along the guide bar and with arc pole sliding connection, thereby make trash rack wear out behind the equalizing basin along the arc of arc pole towards the collecting vat and slope, thereby in pouring into the collecting vat with the impurity on the trash rack, thereby be convenient for reduce impurity and remain on trash rack, need not additionally add drive arrangement, have energy-conserving effect.
Drawings
FIG. 1 is a schematic diagram of an integrated sewage treatment system according to an embodiment of the present application.
FIG. 2 is a schematic structural diagram of a conditioning zone according to an embodiment of the present application.
FIG. 3 is a schematic view of the connection between the AAO process tank and the secondary sedimentation tank in the embodiment of the present application.
Fig. 4 is an exploded view of an AAO process cell in an example of the present application.
Fig. 5 is a schematic structural diagram of a secondary sedimentation tank in the embodiment of the present application.
Description of reference numerals: 1. a partition plate; 2. a through hole; 4. an AAO process tank; 41. an anaerobic tank; 42. an anoxic tank; 43. an aerobic tank; 6. an aeration device; 7. an outer return pipe; 8. a first valve; 9. an inner return pipe; 10. a second valve; 11. a sewage pretreatment device; 111. a regulating tank; 1111. a regulatory region; 1112. an overflow area; 112. a trash rack; 12. a first water inlet pipe; 13. a lifting device; 131. a water collection tank; 132. a fixed pulley; 133. connecting ropes; 14. a second water inlet pipe; 15. a third valve; 16. a return pipe; 17. a fourth valve; 18. a vertical rod; 19. a guide bar; 20. a sleeve; 21. an arcuate bar; 22. collecting tank; 23. a spring; 24. a first check valve; 25. a second one-way valve; 26. a secondary sedimentation tank; 27. an overflow pipe; 28. a flow guiding inclined pipe; 29. a fifth valve; 30. a rotating shaft; 31. a helical blade; 32. a first bevel gear; 33. a second bevel gear; 34. a support; 35. a handle is rotated; 36. a three-way pipe; 37. a blow-off pipe; 38. a sixth valve; 39. an observation window; 40. a first squeegee; 41. a second squeegee; 42. and a magnet.
Detailed Description
The present application is described in further detail below with reference to the attached figures X-X.
The embodiment of the application discloses a three-dimensional integrated sewage treatment process system. Referring to fig. 1 and 2, the three-dimensional integrated sewage treatment system includes a sewage pretreatment device 11, an AAO process tank 4, and a secondary sedimentation tank 26. The sewage pretreatment device 11 comprises a regulating reservoir 111 and a sewage blocking grid 112, wherein the regulating reservoir 111 comprises a regulating region 1111 and an overflow region 1112, the overflow region 1112 is communicated with the lower end of the regulating region 1111, and a first one-way valve 24 which flows towards the interior of the overflow reservoir in a one-way mode is arranged at the communication position of the overflow region 1112 and the regulating region 1111. The trash rack 112 is arranged at an opening at the upper end of the adjusting area 1111, and a lifting device 13 for lifting the trash rack 112 is arranged outside the adjusting area 1111. The lifting device 13 includes a water collection tank 131, a fixed pulley 132, and a connection rope 133, the water collection tank 131 is hollow, and the weight of the water collection tank 131 is equal to that of the trash rack 112. The water collecting tank 131 is communicated with the regulating reservoir 111 through a second water inlet pipe 14, and a third valve 15 is arranged on the second water inlet pipe 14. The lower end of the water collecting tank 131 is communicated with the adjusting tank 111 through a return pipe 16, and the return pipe 16 is provided with a fourth valve 17. The welding has the montant 18 on the regulation zone 1111, and the fixed pulley 132 rotates to be connected in the montant 18 and keeps away from the one end of equalizing basin 111, connects rope 133 overlap joint and sliding connection on fixed pulley 132, and the both ends of connecting rope 133 are connected with header tank 131 and trash rack 112 respectively. When water is not supplied to the water collecting tank 131, the water collecting tank 131 and the trash rack 112 are in a balanced state on both sides of the fixed pulley 132, and when water is supplied to the water collecting tank 131, the trash rack 112 can be lifted.
Referring to fig. 1 and 2, two parallel guide rods 19 are vertically welded in the adjusting tank 111, and two sleeves 20 are welded on the trash rack 112. The sleeve 20 is sleeved outside the guide rod 19 and is connected with the guide rod 19 in a sliding mode, and in the process that the connecting rope 133 lifts the trash rack 112, four side faces of the trash rack 112 can be abutted to the inner wall of the adjusting area 1111, so that shaking of the trash rack 112 in the lifting process in the adjusting area 1111 is reduced. The upper end of the guide rod 19 penetrates through the adjusting tank 111 and is welded with an arc rod 21 for sliding of the sleeve 20, and the welding part of the arc rod 21 and the guide rod 19 is in smooth transition. The orthographic projection of the end, far away from the guide rod 19, of the arc rod 21 is located outside the adjusting tank 111, the spring 23 is sleeved on the arc rod 21, and one end of the spring 23 is welded with the end, far away from the guide rod 19, of the arc rod 21. A collecting groove 22 opposite to the arc-shaped rod 21 and far away from one end of the guide rod 19 is arranged outside one side face of the adjusting tank 111, and when the trash rack 112 is matched with the arc-shaped rod 21 in a sliding mode, the arc-shaped rod 21 is inclined towards the collecting groove 22 under the abutting action of the spring 23, so that impurities of the trash rack 112 can be poured into the collecting groove 22 conveniently.
With reference to fig. 1 and 3, the AAO process tank 4 includes an anaerobic tank 41, an anoxic tank 42 and an aerobic tank 43 which are arranged from bottom to top and are sequentially communicated, the anaerobic tank 41 and the anoxic tank 42 and the aerobic tank 43 are respectively separated by a partition plate 1, a plurality of through holes 2 for sewage to overflow are arranged on each partition plate 1 in a penetrating manner, and an overflow port is arranged at the upper end of the aerobic tank 43. The anaerobic tank 41 is communicated with a first water inlet pipe 12, one end of the first water inlet pipe 12, which is far away from the anaerobic tank 41, is communicated with the overflow area 1112, the communication position of the first water inlet pipe 12 and the overflow area 1112 is higher than the overflow port of the aerobic tank 43, and the first water inlet pipe 12 is provided with a second one-way valve 25 for water to flow to the anaerobic tank 41 from the overflow area 1112 in a one-way manner. The secondary sedimentation tank 26 is communicated with an overflow port of the aerobic tank 43 through an overflow pipe 27, and the communication position of the overflow pipe 27 and the aerobic tank 43 is higher than the communication position of the overflow pipe 27 and the secondary sedimentation tank 26.
As shown in fig. 3, an aeration device 6 is arranged in the aerobic tank 43, the aeration device 6 comprises an aeration blower, a connecting pipeline and an aerator, and air is supplied to the aerobic tank 43 after the aeration device 6 blows air, so that oxygen is supplied to the aerobic tank 43, and microorganisms in the tank are ensured to carry out oxidative decomposition on organic matters in the sewage under the condition of sufficient dissolved oxygen. The aerobic tank 43 is communicated with an outer return pipe 7, and one end of the outer return pipe 7, which is far away from the aerobic tank 43, is communicated with the anaerobic tank 41. The first valve 8 is arranged at the communication part of the outer return pipe 7 and the aerobic tank 43, the first valve 8 is in a normally closed state, when the aeration device 6 supplies oxygen into the aerobic tank 43, the pressure in the aerobic tank 43 is greater than the pressure in the anaerobic tank 41, the first valve 8 is opened, so that sewage can be supplied into the anaerobic tank 41, and the sewage in the aerobic tank 43 is in a mud-water mixed state, so that sewage is supplied into the anaerobic tank 41, and sludge can be supplied into the anaerobic tank 41. Meanwhile, a water pump can be arranged in the aerobic tank 43, and water is pumped out of the return pipe 7 through the water pump.
As shown in fig. 3, the aerobic tank 43 is communicated with the inner return pipe 9, one end of the inner return pipe 9, which is far away from the aerobic tank 43, is communicated with the anoxic tank 42, a second valve 10 is arranged at the communication position of the inner return pipe 9 and the aerobic tank 43, the second valve 10 on the inner return pipe 9 is normally opened, and in the process of carrying out aeration and oxygen increasing on the aerobic tank 43 through the aeration device 6, the pressure in the aerobic tank 43 is greater than that in the anoxic tank 42, so that part of sewage in the aerobic tank 43 can be pressed into the anoxic tank 42 through the inner return pipe 9 for water supplement, and denitrification are carried out. Meanwhile, a water pump may be provided in the aerobic tank 43, and water is pumped into the inner return pipe 9 by the water pump.
As shown in fig. 4, an observation window 39 is vertically installed on the anaerobic tank 41, the observation window 39 is slidably connected with a first scraper 40 and a second scraper 41 respectively at the inner side and the outer side of the anaerobic tank 41 along the length direction of the observation window 39, sliding grooves are respectively arranged at the inner side and the outer side of the anaerobic tank 41 along the length direction of the observation window 39, and sliding blocks slidably connected with the sliding grooves are respectively arranged on the first scraper 40 and the second scraper 41. Magnets 42 are arranged in the first scraper 40 and the second scraper 41, the first scraper 40 and the second scraper 41 are attracted by the magnets 42, and the first scraper 40 and the second scraper 41 respectively abut against the observation window 39.
With reference to fig. 3 and 5, the bottom of the secondary sedimentation tank 26 is communicated with a three-way pipe 36, and the three-way pipe 36 has an output end and two input ends. The output end of the three-way pipe 36 is communicated with the lower end of the secondary sedimentation tank 26, one input end of the three-way pipe 36 is communicated with a flow guide inclined pipe 28, and a fifth valve 29 is arranged on the flow guide inclined pipe 28. The other input end of the three-way pipe 36 is communicated with a sewage discharge pipe 37, and a sixth valve 38 is arranged on the sewage discharge pipe 37. The guide inclined tube 28 is internally penetrated along the length direction and is rotatably connected with a rotating shaft 30 through a bearing, and the rotating shaft 30 is spirally wound with a spiral blade 31 along the length direction. The upper end of the rotating shaft 30 penetrates through the diversion inclined tube 28 and is coaxially sleeved with a first bevel gear 32, a second bevel gear 33 with a rotating axis perpendicular to the first bevel gear 32 is meshed on the first bevel gear 32, a support 34 for the second bevel gear 33 to be rotatably connected is welded outside the diversion inclined tube 28, and a rotating handle 35 is welded on the second bevel gear 33 coaxially and downwards.
The implementation principle of the three-dimensional integrated sewage treatment process system in the embodiment of the application is as follows: sewage enters the adjusting zone 1111 through an opening at the upper end of the adjusting zone 1111, and large impurities in the sewage are intercepted on the sewage blocking grating 112 by the sewage blocking grating 112. After the sewage entering the adjusting region 1111 is subjected to water quantity adjustment and water quality equalization, the sewage flows to the overflow region 1112 in a one-way mode through the first check valve 24, along with the increase of the sewage in the overflow region 1112, the water level in the overflow region 1112 rises to the communication position between the first water inlet pipe 12 and the overflow region 1112, and enters the anaerobic tank 41 through the first water inlet pipe 12.
The sewage entering the anaerobic tank 41 releases phosphorus in the anaerobic tank 41, and meanwhile, part of organic matters in the sewage are aminated; the sewage overflows to the anoxic tank 42 for denitrification through the through holes 2 on the partition board 1 between the anaerobic tank 41 and the anoxic tank 42; the sewage enters the aerobic tank 43 through the through holes 2 on the partition board 1 between the anoxic tank 42 and the aerobic tank 43, and the aeration is carried out in the aerobic tank 43 of the aeration device 6, so that the sewage is nitrified and absorbs phosphorus in the aerobic tank 43. The second valve 10 on the inner return pipe 9 is normally opened, so that oxygen can press part of sewage in the aerobic tank 43 into the anoxic tank 42 through the inner return pipe 9 to supplement water for denitrification in the process of carrying out aeration and oxygenation in the aerobic tank 43 through the aeration device 6.
The sewage overflowed from the aerobic tank 43 can overflow into the secondary sedimentation tank 26 through the overflow pipe 27, so that the sewage overflowed from the AAO process tank 4 is subjected to secondary sedimentation and sludge-water separation. The sludge deposition amount in the anaerobic tank 41 is observed through the observation window 39, and when the sludge is required to be supplemented in the anaerobic tank 41 so as to supplement organic matters, the fifth valve 29 is opened, and the sixth valve 38 is closed, so that the sludge in the secondary sedimentation tank 26 enters the diversion inclined pipe 28 after passing through the three-way pipe 36. The second bevel gear 33 is rotated by the rotating handle 35, and the second bevel gear 33 drives the first bevel gear 32 to rotate, so that the first bevel gear 32 drives the rotating shaft 30 to rotate, and the sludge entering the flow guide pipe is pushed into the anaerobic tank 41 by the helical blades 31, so that the sludge is supplemented into the anaerobic tank 41. When the sludge is not needed to be supplemented into the anaerobic tank 41, the sixth valve 38 is opened, the fifth valve 29 is closed, and the sludge precipitated in the secondary sedimentation tank 26 is discharged outside through the discharge pipe 37.
When the impurities on the trash rack 112 are collected to a certain degree and need to be cleaned, the third valve 15 is opened, so that the sewage in the adjusting tank 111 enters the water collecting tank 131 through the second water inlet pipe 14, the weight of the water collecting tank 131 is increased and exceeds the weight of the impurities on the trash rack 112 and the trash rack 112, the water collecting tank 131 descends and drives the trash rack 112 to ascend along the length direction of the guide rod 19 through the connecting rope 133, and the impurities are lifted. Along with the increase of the water amount in the water collecting tank 131, the weight of the water collecting tank 131 is increased continuously, the trash rack 112 is slidably connected with the arc-shaped rods 21 along the guide rods 19, so that the trash rack 112 is inclined towards the collecting tank 22 along the arc shape of the arc-shaped rods 21 after penetrating out of the adjusting tank 111, impurities on the trash rack 112 are poured into the collecting tank 22, and therefore the residue of the impurities on the trash rack 112 is reduced.
After finishing the cleaning of the residual impurities on the trash rack 112, the third valve 15 is closed, and the fourth valve 17 is opened again, so that the water in the water collecting tank 131 enters the adjusting tank 111 through the return pipe 16, so that the weight of the water collecting tank 131 is reduced to the weight equal to that of the trash rack 112, in the process, the trash rack 112 moves along the arc-shaped rod 21, and is in sliding connection with the guide rod 19 after being separated from the arc-shaped rod 21, so that the trash rack 112 is reset, and the water collecting tank 131 and the trash rack 112 reach relative balance on two sides of the fixed pulley 132 through the connecting rope 133, so that the trash rack 112 intercepts the large impurities at the opening of the adjusting tank 111 again.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A three-dimensional integrated sewage treatment process system is characterized in that: comprises an AAO process pool (4), the AAO process pool (4) comprises an anaerobic pool (41), an anoxic pool (42) and an aerobic pool (43) which are arranged from bottom to top and are communicated in sequence, the anaerobic pool (41) and the anoxic pool (42) and the aerobic pool (43) are separated by a partition plate (1), a through hole (2) is arranged on the partition plate (1) in a penetrating way, a first water inlet pipe (12) is arranged in the anaerobic pool (41) in a communicating way, an overflow port is arranged at the upper end of the aerobic pool (43), an aeration device (6) is arranged in the aerobic pool (43), an outer return pipe (7) is communicated with the aerobic pool (43), one end of the outer return pipe (7) far away from the aerobic pool (43) is communicated with the anaerobic pool (41), a first valve (8) is arranged at the communicating part of the outer return pipe (7) and the aerobic pool (43), the aerobic tank (43) is communicated with an inner return pipe (9), one end, far away from the aerobic tank (43), of the inner return pipe (9) is communicated with the anoxic tank (42), and a second valve (10) is arranged at the communication position of the inner return pipe (9) and the aerobic tank (43).
2. The three-dimensional integrated sewage treatment process system according to claim 1, wherein: the device is characterized in that a sewage pretreatment device (11) is arranged outside the AAO process tank (4), the sewage pretreatment device (11) comprises an adjusting tank (111) and a trash rack (112), the trash rack (112) is arranged at the opening of the adjusting tank (111), the adjusting tank (111) is communicated with an anaerobic tank (41) through a first water inlet pipe (12), a lifting device (13) used for lifting the trash rack (112) is arranged outside the adjusting tank (111), the lifting device (13) comprises a water collecting tank (131), a fixed pulley (132) and a connecting rope (133), the water collecting tank (131) is hollow, the weight of the water collecting tank (131) is equal to that of the trash rack (112), the water collecting tank (131) is communicated with the adjusting tank (111) through a second water inlet pipe (14), a third valve (15) is arranged on the second water inlet pipe (14), and the lower end of the water collecting tank (131) is communicated with the adjusting tank (111) through a return pipe (16), the backflow pipe (16) is provided with a fourth valve (17), the upper end of the adjusting tank (111) is provided with a vertical rod (18), the fixed pulley (132) is rotatably connected to one end, far away from the adjusting tank (111), of the vertical rod (18), the connecting rope (133) is in lap joint and is in sliding connection with the fixed pulley (132), two ends of the connecting rope (133) are respectively connected with the water collecting tank (131) and the trash rack (112), the adjusting tank (111) is internally and vertically provided with a guide rod (19), the trash rack (112) is provided with a sleeve (20), the sleeve (20) is sleeved outside the guide rod (19) and is in sliding connection with the guide rod (19), the upper end of the guide rod (19) penetrates out of the adjusting tank (111) and is connected with an arc-shaped rod (21) for sliding of the sleeve (20), and the orthographic projection of one end, far away from the guide rod (19), of the arc-shaped rod (21) is positioned outside, and a collecting tank (22) which is just opposite to one end of the arc rod (21) far away from the guide rod (19) is arranged outside one side surface of the regulating tank (111).
3. The three-dimensional integrated sewage treatment process system according to claim 2, wherein: the arc-shaped rod (21) is sleeved with a spring (23), and one end of the spring (23) is connected with one end, far away from the guide rod (19), of the arc-shaped rod (21).
4. The three-dimensional integrated sewage treatment process system according to claim 2, wherein: the equalizing basin (111) is including regulation zone (1111) and overflow area (1112), overflow area (1112) are linked together with regulation zone (1111) lower extreme, the intercommunication department of overflow area (1112) and regulation zone (1111) is provided with first check valve (24) towards one-way flow in the overflow pond, overflow area (1112) are linked together with anaerobism pond (41) through first inlet tube (12), the overflow mouth that first inlet tube (12) and the intercommunication department of overflow area (1112) are higher than good oxygen pond (43), be provided with second check valve (25) that are used for water to anaerobism pond (41) by overflow area (1112) one-way flow on first inlet tube (12).
5. The three-dimensional integrated sewage treatment process system according to claim 1, wherein: still be provided with two heavy ponds (26) outside AAO technology pond (4), two heavy ponds (26) are linked together through overflow pipe (27) and the overflow mouth of good oxygen pond (43), the intercommunication department of overflow pipe (27) and good oxygen pond (43) is higher than the intercommunication department of overflow pipe (27) and two heavy ponds (26), two heavy ponds (26) bottom intercommunication have water conservancy diversion pipe chute (28), be provided with fifth valve (29) on the water conservancy diversion pipe chute (28).
6. The three-dimensional integrated sewage treatment process system according to claim 5, wherein: the utility model discloses a novel spiral flow guiding device, including water conservancy diversion pipe chute (28), pivot (30) are worn to establish and rotate along its length direction in the water conservancy diversion pipe chute (28) and are connected with pivot (30), helical blade (31) have been coiled along its length direction spiral in pivot (30), the coaxial cover of water conservancy diversion pipe chute (28) is worn out to pivot (30) upper end is equipped with first bevel gear (32), meshing has axis of rotation and first bevel gear (32) second bevel gear (33) mutually perpendicular on first bevel gear (32), water conservancy diversion pipe chute (28) are provided with outward and supply second bevel gear (33) to rotate support (34) of connecting, coaxial and down be provided with rotation handle (35) on second bevel gear (33).
7. The three-dimensional integrated sewage treatment process system according to claim 5, wherein: the flow guide inclined pipe (28) is communicated with the lower end of the secondary sedimentation tank (26) through a three-way pipe (36), the three-way pipe (36) is provided with an output end and two input ends, the output end of the three-way pipe (36) is communicated with the secondary sedimentation tank (26), one input end of the three-way pipe (36) is communicated with the flow guide inclined pipe (28), the other input end of the three-way pipe (36) is communicated with a sewage discharge pipe (37), and a sixth valve (38) is arranged on the sewage discharge pipe (37).
8. The three-dimensional integrated sewage treatment process system according to claim 1, wherein: the utility model discloses a portable anaerobic tank, including anaerobism pond (41), vertically on the anaerobism pond (41) be provided with observation window (39), observation window (39) have first scraper blade (40) and second scraper blade (41) along its length direction in anaerobism pond (41) inside and outside both sides sliding connection respectively, all be provided with magnet (42) in first scraper blade (40) and in second scraper blade (41), first scraper blade (40) and second scraper blade (41) adsorb mutually through magnet (42), just first scraper blade (40) and second scraper blade (41) respectively with observation window (39) counterbalance tightly.
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| CN113683194A (en) * | 2021-08-18 | 2021-11-23 | 石横特钢集团有限公司 | Method for bright reflux of nitrifying liquid |
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