CN114105271B - Self-circulation encryption granular sludge water purifying device - Google Patents
Self-circulation encryption granular sludge water purifying device Download PDFInfo
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- CN114105271B CN114105271B CN202111436890.7A CN202111436890A CN114105271B CN 114105271 B CN114105271 B CN 114105271B CN 202111436890 A CN202111436890 A CN 202111436890A CN 114105271 B CN114105271 B CN 114105271B
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- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 301
- 239000010802 sludge Substances 0.000 title claims abstract description 241
- 238000000746 purification Methods 0.000 claims abstract description 59
- 239000010865 sewage Substances 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 35
- 239000008213 purified water Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims description 74
- 238000005189 flocculation Methods 0.000 claims description 30
- 230000016615 flocculation Effects 0.000 claims description 29
- 238000002156 mixing Methods 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 238000005191 phase separation Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 abstract description 13
- 238000011403 purification operation Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 239000008187 granular material Substances 0.000 abstract description 5
- 229940079593 drug Drugs 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000001112 coagulating effect Effects 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229940037003 alum Drugs 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000002493 climbing effect Effects 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003466 welding 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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F2001/007—Processes including a sedimentation step
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides a self-circulation encryption granular sludge water purifying device, which is characterized in that after sewage and medicines entering a shell react, purified water flows out through a water outlet part, and the purified water flowing out from the water outlet part can be guided into a filtering component by the self-circulation encryption granular sludge water purifying device through a water guide pipe so as to carry out further filtering operation. After the further purification effect of the filter assembly, the obtained water enters the water guide pipe, and then the water guide pipe further guides the water to the purified water outlet position, so that the purification operation is realized. Through set up the filter chamber in the casing inside, can effectively utilize the inner space of casing for self-loopa encrypts granule mud purifier and possesses basic water purification function's basis, can also realize the further purification operation to water.
Description
Technical Field
The invention relates to the technical field of sewage purification equipment, in particular to a self-circulation encryption granular sludge water purification device.
Background
The water treatment refers to physical, biological and chemical measures adopted for enabling the water quality to reach a certain use standard, and medicaments are generally added in the treatment process for adjusting pH, coagulating and flocculating, and then filtering is carried out to remove impurities in the water.
In the prior art, in order to realize the purification operation to water itself, can set up the encryption granule mud purifier of self-loopa generally, through setting up the encryption granule mud purifier of self-loopa, can realize the purification operation to water.
However, in the prior art, water flowing out of the self-circulation encryption granular sludge water purifying device still cannot fully meet the water quality requirement.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that the water quality of water flowing out of the self-circulation encryption granular sludge water purifying device in the prior art still cannot fully meet the water quality requirement.
To this end, the present invention provides a self-circulating encryption granular sludge water purification apparatus comprising: a housing provided with a water inlet portion and a water outlet portion; the central reaction cylinder is arranged in the shell, and a flocculation reaction area is formed in the central reaction cylinder; the water body accelerating device is located inside the shell and downstream of the water inlet part, a water outlet of the water body accelerating device faces the central reaction cylinder, and the water body accelerating device comprises: a first accelerating tube disposed downstream of the water inlet portion, at least a portion of the first accelerating tube having a reduced inner diameter; the sludge inner return pipe is connected with the water body accelerating device; the sludge cover is arranged outside the central reaction cylinder, a flocculation gap is formed between the central reaction cylinder and the sludge cover, a sludge area is formed between the sludge cover and the central reaction cylinder, the sludge area is arranged at the downstream of the flocculation gap and comprises a half-matured sludge collecting area and a suspended sludge filtering and depositing area along the direction away from the flocculation gap, and a formed area between the sludge cover and the shell is communicated with the inner return pipe of the sludge; the sleeve is arranged on the inner side of the sludge cover and positioned between the sludge cover and the central reaction cylinder, the top of the sleeve is lower than the top of the sludge cover, and the bottom of the sleeve is positioned at the downstream of the water body accelerating device;
The invention provides a self-circulation encryption granular sludge water purification device, which further comprises: the separation plate is arranged inside the filter cavity and used for dividing the filter cavity into a water purifying area and a sewage area, and a through hole which is suitable for the water guide pipe to pass through is formed in the separation plate.
According to the self-circulation encrypted granular sludge water purifying device provided by the invention, one end of the water guide pipe is arranged on the through hole.
The invention provides a self-circulation encryption granular sludge water purification device, which further comprises: and one end of the water pumping pipe extends to the outer side of the shell, and the other end of the water pumping pipe extends to the interior of the sewage area and is positioned at the upstream of the filtering assembly.
The self-circulation encryption granular sludge water purifying device provided by the invention has the advantages that the filtering shell is annularly arranged on the inner wall of the shell.
According to the self-circulation encrypted granular sludge water purification device provided by the invention, at least one part of the first accelerating tube is arranged in a conical shape.
The invention provides a self-circulation encryption granular sludge water purifying device, which further comprises:
And at least one second accelerating tube is covered above the first accelerating tube, and at least one part of the second accelerating tube is arranged in a conical shape.
The self-circulation encrypted granular sludge water purification device provided by the invention further comprises a rising conduit, wherein one end of the rising conduit, which corresponds to the second accelerating tube, is provided with a circulation air guide sleeve, and the circulation air guide sleeve is arranged on the periphery of the second accelerating tube.
According to the self-circulation encrypted granular sludge water purification device provided by the invention, the bottom end of the sleeve is connected to the outer side wall of the second accelerating tube, and fluid flowing out through the floc notch climbs along the sleeve.
The invention provides a self-circulation encryption granular sludge water purification device, which comprises the following components in the height direction: the first inclined section corresponds to the suspended sludge filtering and settling zone, a cured sludge collecting zone is formed between the first inclined section and the shell, and a plurality of three-phase separating plates are arranged on the first inclined section; the transition section corresponds to the semi-matured sludge collecting area; the second inclined section is arranged on the outer side of the sleeve and connected with the transition section, and water flowing out from the flocculation gap enters the area between the second inclined section and the sleeve.
The invention provides a self-circulation encryption granular sludge water purification device, which further comprises: the mixing zone, the mixing zone sets up intake portion with between the first accelerating tube, and with intake portion is linked together, the mixing zone includes: the muddy water collecting tank is connected with the first accelerating tube and is provided with a water outlet; the first baffle is arranged at the downstream of the water outlet of the muddy water collecting tank, and a first flow passage is formed between the first baffle and the muddy water collecting tank; the drainage plate is arranged on the outer wall of the muddy water collection tank, a second flow channel is formed between the drainage plate and the first baffle, the first flow channel is communicated with the second flow channel, and fluid flowing out through an outlet of the second flow channel is suitable for entering the first accelerating tube.
The invention provides a self-circulation encryption granular sludge water purification device, which further comprises: and the inlet end of the sludge inner return pipe enters the curing sludge collecting area, and the other end of the sludge inner return pipe is communicated with the mud water collecting tank.
The outlet of the drainage plate is communicated with the outlet pipe, and the other end of the outlet pipe extends towards the inner return pipe of the sludge.
The invention provides a self-circulation encryption granular sludge water purification device, which further comprises: the filter shell is arranged on the inner wall of the shell, a filter cavity is formed between the filter shell and the shell, and a clean water outlet is arranged at a position, corresponding to the filter cavity, on the shell; a filter assembly disposed in the filter cavity; one end of the water diversion pipe is communicated with the water outlet part, and the other end of the water diversion pipe acts on the upstream of the filtering component; one end of the water guide pipe acts on the downstream of the filtering component, and the other end of the water guide pipe is communicated with the purified water outlet.
The technical scheme of the invention has the following advantages:
1. The invention provides a self-circulation encryption granular sludge water purifying device, which is characterized by comprising: a housing provided with a water inlet portion and a water outlet portion; the central reaction cylinder is arranged in the shell, and a flocculation reaction area is formed in the central reaction cylinder; the water body accelerating device is located inside the shell and downstream of the water inlet part, a water outlet of the water body accelerating device faces the central reaction cylinder, and the water body accelerating device comprises: a first accelerating tube disposed downstream of the water inlet portion, at least a portion of the first accelerating tube having a reduced inner diameter; the sludge inner return pipe is connected with the water body accelerating device; the sludge cover is arranged outside the central reaction cylinder, a flocculation gap is formed between the central reaction cylinder and the sludge cover, a sludge area is formed between the sludge cover and the central reaction cylinder, the sludge area is arranged at the downstream of the flocculation gap and comprises a half-matured sludge collecting area and a suspended sludge filtering and depositing area along the direction away from the flocculation gap, and a formed area between the sludge cover and the shell is communicated with the inner return pipe of the sludge; the sleeve is arranged on the inner side of the sludge cover and positioned between the sludge cover and the central reaction cylinder, the top of the sleeve is lower than the top of the sludge cover, and the bottom of the sleeve is positioned at the downstream of the water body accelerating device;
Through setting up sleeve and mud cover, can form certain space between sleeve and mud cover, the top and the bottom in this space all are open and describe the setting, as shown in the figure, the floc that flows through the floc breach will climb in the sleeve inside, along with the continuous progress of climbing action, the curing degree of mud also will constantly increase, because telescopic top is less than the top of mud cover, consequently will have a part of half-cooked mud enter into in the space between mud cover and the sleeve, this part of half-cooked mud is located water accelerating device's low reaches, then further backward flow is in the central reaction section of thick bamboo under water accelerating device's drive, and the reaction is carried out again.
Simultaneously, the flocs in the sludge cover continuously rise, the semi-cured sludge is converted into cured sludge, and then the cured sludge further enters into a region between the sludge cover and the shell, the region belongs to a cured sludge collecting region, the region is connected with an inlet of a return pipe in the sludge, and the sludge entering into the cured sludge collecting region further flows back to a water accelerating device through the return pipe in the sludge to accelerate the sludge, and meanwhile, the sludge is reacted again, so that the utilization efficiency of the sludge is effectively improved.
2. According to the self-circulation encrypted granular sludge water purifying device provided by the invention, after the sewage and the medicine entering the shell react, the purified water flows out through the water outlet part, and the purified water flowing out from the water outlet part can be guided into the filtering component by the self-circulation encrypted granular sludge water purifying device through the water guide pipe, so that further filtering operation is performed. After the further purification effect of the filter assembly, the obtained water enters the water guide pipe, and then the water guide pipe further guides the water to the purified water outlet position, so that the purification operation is realized. Through set up the filter chamber in the casing inside, can effectively utilize the inner space of casing for self-loopa encrypts granule mud purifier and possesses basic water purification function's basis, can also realize the further purification operation to water.
3. The invention provides a self-circulation encryption granular sludge water purification device, which further comprises: the separation plate is arranged inside the filter cavity and used for dividing the filter cavity into a water purifying area and a sewage area, and a through hole which is suitable for the water guide pipe to pass through is formed in the separation plate.
Through setting up the division board, can separate water purification and sewage, carry out the purification operation of sewage in sewage district inside, then will purify the water purification that obtains through the aqueduct and shift to the water purification district in store to further flow to the external world through the water purification delivery port.
4. The invention provides a self-circulation encryption granular sludge water purification device, which further comprises: and one end of the water pumping pipe extends to the outer side of the shell, and the other end of the water pumping pipe extends to the interior of the sewage area and is positioned at the upstream of the filtering assembly.
Through setting up the drinking-water pipe, after the drinking-water pipe starts, the water purification part that is located the filter component low reaches this moment will flow into the water purification district through the drinking-water pipe, and another part water will flow to the upstream position of filter component in reverse under the negative pressure effect of drinking-water pipe, and at the reverse flow in-process of water, it can realize the washing operation to filter component self, after accomplishing reverse washing, can draw forth sewage to the external world through the drinking-water pipe to realize the washing to filter component.
According to the invention, through the cooperation of the water suction pipe, the water diversion pipe and the filter assembly, the water purification efficiency of the filter assembly can be effectively ensured, and the purification effect of the whole self-circulation encryption granular sludge water purification device on sewage can be effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a self-circulation encrypted granular sludge water purification device provided in embodiment 3 of the present invention;
Fig. 2 is a schematic structural diagram of a second self-circulation encrypted granular sludge water purification device according to embodiment 3 of the present invention;
FIG. 3 is an enlarged view of a portion of the mixing zone provided in FIG. 2;
Fig. 4 is a schematic view of a first construction of the self-circulating encryption granular sludge water purification apparatus provided in example 2;
Fig. 5 is a schematic diagram of a second construction of the self-circulating encryption granular sludge water purification apparatus provided in example 2;
Fig. 6 is a schematic structural view of the self-circulating encryption granular sludge water purification apparatus provided in example 1;
Description of the reference numerals in the examples:
1. a water inlet part; 2. a water outlet part; 3. a first accelerating tube; 4. a sludge cover; 41. a floc notch; 42. a first sloped section; 43. a second sloped section; 44-transition section; 5. a second accelerating tube; 6-vortex zone; 7. a riser duct; 8. a hydraulic diffuser; 9-flocculation main reaction zone; 10. a circulation diversion cover; 11. a central reaction cylinder; 12. a sleeve; 16-a three-phase separation plate; 17. a semi-matured sludge collection area; 19. a suspended sludge filtering and settling area; 21. a sloped tube separation zone; 28. a matured sludge collection zone; 30. a sludge internal return pipe; 32. a semi-curing sludge hopper sludge discharger; 33. curing the sludge hopper emptying pipe; 35. a housing; 40. a filter housing; 401. a purified water outlet; 50. a filter assembly; 60. a water conduit; 70. a water conduit; 80. a partition plate; 90. a water pumping pipe; 100. a mixing zone; 101. a muddy water collection tank; 102. a first baffle; 103. a drainage plate; 104. and a delivery tube.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment provides a self-circulation encryption granular sludge water purifying device, which is mainly applied to the fields of water coagulation purification, scale improvement and reconstruction of sewage treatment plants, rapid treatment of water bodies such as river channels, lakes, initial rainwater and the like; the coagulating sedimentation and heavy metal coagulating capture reaction in the iron and steel electronics industry are used in the coagulating sedimentation section in water treatment to remove suspended matters, turbidity and partial metal ions such as manganese, arsenic, ferric oxide and the like, total phosphorus, algae, partial organic matters and the like in water. In the embodiment, the self-circulation encryption granular sludge water purifying device can be made of concrete materials, steel materials or high polymer materials, and the high density means that the suspended sludge in the water body exceeds 4g/L. As shown in fig. 1-3, comprising:
a housing 35 on which the water inlet portion 1 and the water outlet portion 2 are provided;
In this embodiment, the housing 35 adopts a vertical irregular cylindrical structure, and the self-circulation encryption granular sludge water purification device is arranged in a vertical shape after being installed in the direction shown in fig. 1.
Specifically, the water inlet part 1 is connected with external sewage, and may be a water inlet arranged on the shell 35 or a pipeline arranged on the shell 35. Similarly, the water outlet 2 may be directly provided at the water outlet of the housing 35, or may be a pipe provided at the housing 35.
Meanwhile, in order to realize the dosing operation, a dosing pipe is arranged on the water inlet part 1, and the dosing pipe is connected with the water inlet part 1.
A central reaction cylinder 11 disposed inside the housing 35, wherein a flocculation reaction area is formed inside the central reaction cylinder 11;
In the application, sewage treatment is realized mainly through flocculation precipitation reaction. Flocculation precipitation reaction is the process of flocculating and precipitating particles in water. After coagulant is added into sewage, colloid and dispersed particles of suspended matters generate floccules under the interaction of molecular force and collide with each other to coagulate in the sedimentation process, the size and the mass of the floccules are continuously increased, the sedimentation speed is continuously increased, alum flowers are formed after coagulant is added into sewage, and then flocculation and sedimentation are caused.
In this embodiment, the type of the drug is not limited, and may be ferrous sulfate, polyaluminum chloride, basic aluminum chloride, or the like. The medicines can be used for decoloring, deoiling, degerming, algae removal, heavy metal ion removal and the like of sewage.
Specifically, the central reaction cylinder 11 is disposed inside the main body, coaxially with the main body, and the shape of the central reaction cylinder 11 itself is not limited, and may be cylindrical or rectangular. The externally entering sludge, medicines and other reactants can react in the flocculation reaction zone and in the flocculation reaction zone.
A water body accelerating device, which is positioned inside the housing 35 and downstream of the water inlet part 1, and can accelerate the water body flowing from upstream, wherein a water outlet of the water body accelerating device is arranged towards the central reaction cylinder 11; in the present embodiment, the structure of the water body accelerating device is not limited, and a stirrer or the like may be used as long as acceleration of water flow can be achieved.
As shown in fig. 1 and 2, a filter housing 40 is provided on the inner wall of the housing, and a filter chamber is formed between the filter housing and the housing, in which filter chamber a filtering operation is adapted to be performed. In this embodiment, a clean water outlet is provided at a position on the housing corresponding to the filter cavity, and the purified water can be led out to the outside through the clean water outlet 401 for subsequent operations.
Specifically, the filter housing 40 is made of a metal material, and can be welded to the inner wall of the housing, and a manhole is provided above the filter housing 40 for convenience of installation operation, thereby facilitating the ingress and egress of operators. Meanwhile, as shown in fig. 1, a purified water outlet 401 is provided at a position above the filter chamber, thereby facilitating the extraction of purified water.
In the present embodiment, the shape of the filter housing 40 is not limited, and the filter housing is preferably provided in a ring shape on the inner wall of the housing 35.
As shown in fig. 6, a sleeve 12 is disposed inside the sludge cover 4 and between the sludge cover 4 and the central reaction cylinder 11, and the top of the sleeve is lower than the top of the sludge cover 4;
In this embodiment, by providing the sleeve 12 and the sludge cover 4, a certain space can be formed between the sleeve 12 and the sludge cover 4, the top and the bottom of the space are both in an open arrangement, as shown in fig. 1, the flocs flowing out through the floc notch 41 will climb inside the sleeve 12, along with the climbing action, the curing degree of the sludge will also be continuously increased, and as the top of the sleeve 12 is lower than the top of the sludge cover 4, a part of semi-cured sludge will enter the space between the sludge cover 4 and the sleeve 12, and this part of semi-cured sludge is located at the downstream of the water body accelerating device, and then further flows back into the central reaction cylinder 11 under the driving of the water body accelerating device, and reacts again.
Simultaneously, the flocs in the sludge cover 4 continuously rise, the semi-cured sludge is converted into cured sludge, and then the cured sludge further enters a region between the sludge cover 4 and the shell 35, the region belongs to a cured sludge collecting region 28, the region is connected with an inlet of a sludge inner return pipe 30, and the sludge entering the cured sludge collecting region 28 further flows back to a water body accelerating device through the sludge inner return pipe 30, so that the acceleration of the sludge is realized, and the sludge is reacted again, so that the utilization efficiency of the sludge is effectively improved.
Specifically, the bottom end of the sleeve is connected to the outer side wall of the second accelerating tube, and the fluid flowing out through the floc notch 41 climbs along the sleeve. Through the structure setting mode, a closed space is formed between the sludge cover 4 and the sleeve.
In this embodiment, the self-circulation encryption granular sludge water purification device further includes: the division board is arranged inside the filter cavity and is used for dividing the filter cavity into a water purifying area and a sewage area, and a through hole which is suitable for the water guide pipe 70 to pass through is arranged on the division board.
By providing the partition plate, the purified water and the sewage can be separated, the purification operation of the sewage is performed in the sewage area, and the purified water obtained by purification is transferred to the purified water area through the water guide pipe 70 for storage and further flows out to the outside through the purified water outlet. As shown in fig. 1, the purified water zone is disposed above the sewage zone.
Specifically, both ends of the partition plate are respectively provided on the inner wall of the housing and the inner wall of the filter housing 40, which may be connected by welding.
In this embodiment, one end of the water guide pipe is disposed on the through hole, and water flowing out through the water guide pipe directly enters the purified water area for storage.
A sludge cover 4 arranged outside the central reaction cylinder 11, a sludge area is formed between the sludge cover 4 and the central reaction cylinder 11, a floc gap 41 is formed between the central reaction cylinder 11 and the sludge cover 4, the sludge area is arranged at the downstream of the floc gap 41, and comprises a semi-cured sludge collection area 17 and a suspended sludge filtration and sedimentation area 19 along the direction away from the floc gap 41;
Specifically, as shown in fig. 1, the sludge cover 4 is disposed at the outer side of the central reaction cylinder 11, and since the floc gap 41 is disposed between the central reaction cylinder 11 and the sludge region, the floc sludge flowing out of the flocculation reaction region flows into the sludge region through the floc gap 41, and is first changed into half-cooked sludge from bottom to top in the height direction, and then forms cured sludge by continuous reaction with the chemical and the sewage during the rising process.
In this embodiment, the sewage and medicine to be purified from the outside enters the water body accelerating device through the water inlet part 1, enters the central reaction cylinder 11 through the water body accelerating device, and then performs flocculation operation in the flocculation reaction area of the central reaction cylinder 11, and the flocculation reaction gradually proceeds along with the rising action. After the preliminary flocculation is completed, the wastewater flows out of the central reaction cylinder 11 through the floc notch 41 and then enters a sludge area formed between the sludge cover 4 and the central reaction cylinder 11.
Inside the sludge zone, the floc sludge will be subjected to the following forces: the floc sludge generates buoyancy due to lighter weight by the thrust from the water body accelerating device, and the floc sludge is driven to move upwards by the thrust and the buoyancy; meanwhile, the flocculent sludge is also subjected to self gravity, and the gravity drives the flocculent sludge to move downwards. Through the combined action of upward force and downward force, the flocculated sludge forms a disturbed suspension state, the flocculated sludge is gradually climbed along with the gradual increase of the flocculated sludge, and the flocculated sludge firstly forms semi-cured sludge and then is further cured and increased along with the gradual climbing of the flocculated sludge in the climbing process, so that the full progress of the purification reaction is facilitated.
By forming the suspended state, the flocculent sludge flowing out of the central reaction cylinder 11 is gradually intercepted in the semi-mature sludge, then the reaction is gradually carried out in the sludge area, and meanwhile, the floccules in the suspended state can intercept and adsorb smaller alum, colloid and the like, so that the subsequent purification reaction is carried out.
Compared with the prior art, the suspended state is formed, so that the self-purification effect of the sewage is better, and the suspended matters and turbidity of the effluent are lower.
In the embodiment, a dynamic suspension sludge layer is formed, so that the rising flocs and colloids are intercepted and filtered, and the final effluent sensory index is excellent. Meanwhile, due to the arrangement of the water body speed reducing device, the hydraulic load in the unit volume is obviously increased, and finally the occupied area is 1/15-1/20 of that of the traditional coagulating sedimentation, so that the space is saved, and the occupied area is saved.
More importantly, the sludge suspension layer has strong self-purification capability to sewage, so that the water quality and the water quantity impact load bearing capability to incoming water are strong, and the sludge filter layer does not need backwashing, so that the operation is convenient.
Preferably, in the self-circulation encrypted granular sludge water purification device provided in this embodiment, the water body accelerating device includes: a first accelerating tube 3 communicating with the water inlet portion 1, wherein at least a part of the first accelerating tube 3 has a reduced inner diameter.
In the prior art, in order to realize the acceleration action of the water body entering the self-circulation encryption granular sludge water purification device, a separate impeller and other structures are usually required to be arranged inside, and as shown in fig. 2, the self-circulation encryption granular sludge water purification device drives the water body through a push-type stirrer and a negative pressure ejector to realize the acceleration of the water body, and the structures need additional consumption of electric energy. In this embodiment, through restricting inside at least a portion internal diameter of first accelerating tube 3 and taking place to reduce, after sewage enters into first accelerating tube 3, because the internal diameter diminishes, will lead to rivers to accelerate, can realize unpowered pressurization this moment, need not mechanical stirring for holistic energy consumption reduces, makes things convenient for the later stage to maintain simultaneously.
The specific shape of the first accelerating tube 3 itself is not limited, and the inside thereof may be provided with a constriction, for example, the constriction may be provided in the first accelerating tube 3, and as a preferred embodiment, at least a part of the first accelerating tube 3 may be tapered as shown in fig. 1.
Further, in order to effectively improve the acceleration effect of the water body, the water body acceleration device further comprises: and the second accelerating tube 5 is covered above the first accelerating tube 3, and at least one part of the second accelerating tube 5 is arranged in a conical shape.
Specifically, the second accelerating tube 5 is provided, and first, the water body can perform acceleration action inside the second accelerating tube 5. At the same time, the second accelerating tube 5 is arranged above the first accelerating tube 3, so that a certain gap is arranged between the two in the height direction. Meanwhile, since the fluid flow rate inside the first accelerating tube 3 is large, the water pressure in the first accelerating tube 3 is relatively low at this time according to the bernoulli principle. At this time, the flocculated sludge entering the sludge area spontaneously enters a gap between the first accelerating tube 3 and the second accelerating tube 5 under the action of pressure, and then flows into the central reaction cylinder 11 again under the driving of pressure to participate in the reaction again, so that the contact probability of the medicament and water is greatly improved, and the medicament is fully utilized. Meanwhile, the flocculent sludge can participate in raw water mixing reaction for many times, suspended matters and colloid of raw water are removed through the sludge adsorption and net capturing effects, and the dosage of the medicament is saved.
More importantly, because the second accelerating tube is arranged above the first accelerating tube, and a certain gap is formed between the second accelerating tube and the first accelerating tube in the height direction, at the moment, because negative pressure exists in the second accelerating tube, the second accelerating tube conducts downward drainage operation on flocculent sludge, so that flocculent sludge flowing out of a flocculent notch is subjected to downward adsorption force under the action of the negative pressure, and at the moment, the downward force applied to the flocculent sludge comprises self gravity and the adsorption force formed by the second accelerating tube.
Through the arrangement mode, the finally formed suspended flocculent sludge is more stable, so that flocculent sludge flowing out of a central reaction cylinder in the follow-up process is gradually intercepted in semi-matured sludge, and then the reaction is gradually carried out in a sludge area, and the sewage treatment capacity of the suspended flocculent sludge is further improved.
The self-circulation encryption granular sludge water purification device provided by the embodiment, as shown in fig. 1, further comprises a rising conduit 7, wherein a circulation guide cover 10 is arranged at one end of the rising conduit 7 corresponding to the second accelerating tube 5, and the circulation guide cover 10 is covered on the periphery of the second accelerating tube 5. In this embodiment, the circulation diversion cover 10 is arranged in a reducing way, and by the arrangement mode, the vortex area 6 can be formed inside the circulation diversion cover 10, so that disturbance on substances such as flocs inside the ascending conduit 7 is increased.
Specifically, the ascending conduit 7 is arranged above the second accelerating tube 5, the hydraulic diffuser 8 is arranged at the top of the ascending conduit 7, the hydraulic diffuser 8 is arranged in an open shape, the inner diameter of the top is larger than that of the bottom, and the flocculated sludge can stably flow out of the region between the water inlet conduit and the central reaction cylinder 11 through the hydraulic diffuser 8 in the arrangement mode.
Further, as shown in fig. 1, a flocculation main reaction zone 9 is formed between the rising conduit 7 and the central reaction cartridge 11, and flocculation operation is performed in the flocculation main reaction zone 9.
In this embodiment, the diameter of the rising conduit 7 is one fourth to one third of the diameter of the central reaction cylinder 11, and by the above size setting mode, after the water flowing out from the rising conduit 7 enters the flocculation main reaction zone 9, the space is instantaneously enlarged, so that the hydraulic stirring degree is effectively reduced, the flocculation reaction is uniform and not severe, the structural stability of the floc alum is ensured, the alum breakage is reduced, the flocculation effect in the flocculation reaction zone 9 can be effectively improved, and the sewage purification capability is finally improved.
Specifically, the shape of the ventilation hole itself is not limited, and it may take a circular hole shape, an elliptical shape, or an irregular shape, as long as the discharge of the air flow can be achieved.
In this embodiment, the sludge cover 4 includes, in the height direction:
A first inclined section 42 corresponding to the suspended sludge filtering and settling zone 19, wherein a cured sludge collecting zone 28 is formed between the first inclined section 42 and the shell 35, and a plurality of three-phase separating plates 16 are arranged on the first inclined section 42;
specifically, the top end of the first inclined section 42 is connected to the inner wall of the housing 35, and the lower end is connected to the top of the transition section 44.
Through setting up three-phase separation board 16, owing to three-phase separation board 16 is connected with casing 35 inner wall, after the floc rises through three-phase separation board 16, owing to cross section suddenly increases, the velocity of flow of fluid such as floc takes place to reduce, and then helps reducing the velocity of flow of floc etc. and helps going on of purifying reaction.
A transition section 44 corresponding to the semi-digested sludge collection zone 17; in particular, the transition section 44 itself extends in a vertical direction.
Second inclined section 43, water flowing out through floc gap 41 enters second inclined section 43.
As shown in fig. 1, the top opening of the second inclined section 43 is larger than the bottom opening, the floc notch 41 is disposed at the middle position of the second inclined section 43, and one part of the flocs flowing out of the floc notch 41 flows toward the upper position of the second inclined section 43, and the other part flows toward the lower position of the second inclined section 43.
In this embodiment, as shown in fig. 3, the self-circulation encrypted granular sludge water purification device further includes: a mixing zone 100 disposed between the water inlet portion 1 and the first accelerating tube 3 and communicating with the water inlet portion 1, the mixing zone comprising: a mud water collecting tank 101 connected with the first accelerating tube 3 and provided with a water outlet; a first baffle plate 102, which is arranged at the downstream of the water outlet of the muddy water collection tank, and a first flow passage is formed between the first baffle plate and the muddy water collection tank; the drainage plate 103 is arranged on the outer wall of the mud water collecting tank, a second flow channel is formed between the drainage plate and the first baffle, the first flow channel is communicated with the second flow channel, and fluid flowing out through the outlet of the second flow channel is suitable for entering the first accelerating tube 3. And an in-sludge return pipe, wherein the inlet end of the in-sludge return pipe 30 enters the cured sludge collection area 28, and the other end is communicated with the muddy water collection tank.
Specifically, the fluid flowing out through the mud water collection tank 101 flows into the first flow path in advance, and then flows into the second flow path again. By flowing in the first flow channel and the second flow channel, the reaction time between the sludge and the sewage and the medicament can be effectively increased, so that the use amount of the medicament can be effectively reduced.
In this embodiment, the outlet of the drainage plate is communicated with a delivery pipe 104, and the other end of the delivery pipe extends toward the sludge internal return pipe 28. By the above arrangement, a part of the sludge-water mixture can be cured only in the sludge collection area 28, and then introduced into the sludge collection tank 101 again under the action of suction force to perform subsequent reaction, thereby effectively improving the utilization efficiency of the chemical.
In this embodiment, the sludge water collection tank is provided with an internal sludge return pipe 30, and an inlet end of the internal sludge return pipe 30 enters the matured sludge collection area 28.
Specifically, as shown in fig. 1, the lower end of the internal sludge return pipe 30 extends into the cured sludge collecting area 28, the pressure in the sludge collecting tank 101 is reduced due to the higher flow velocity of water in the sludge collecting tank, the cured sludge in the cured sludge collecting area 28 can be adsorbed by arranging the internal sludge return pipe 30 and then reentered into the sludge collecting tank under the action of suction, the sludge flowing through the cured sludge collecting area preferentially enters into the sludge collecting tank by arranging the internal sludge return pipe, the sludge flowing out of the floc notch and flowing downwards participates in the circulation reaction again, and partial suspended matters and partial colloid in raw water can be removed due to the strong adsorption capacity of the cured sludge, so that the dosage of the medicament is saved.
In this embodiment, the second inclined section 43 is connected to the sludge discharge device 32 of the half-cooked sludge hopper. One end of the semi-cured sludge collector is connected to the lower position of the second inclined section 43, and the other end extends to the outside of the housing 35.
As shown in fig. 1, the chute separation region 21 itself is provided with a plurality of pipes parallel to each other and inclined at an angle.
In this embodiment, a mature sludge collecting hopper emptying pipe 33 is arranged below the mature sludge collecting region 28, the mature sludge collecting hopper emptying pipe 33 is communicated with the mature sludge collecting region 28, and the bottom of the pipe is close to the bottom of the mature sludge collecting cone, so that the internal sludge is thoroughly carried out in the early stage of the emptying operation.
Further, in this embodiment, a plurality of sludge sampling pipes are disposed on the mature sludge collecting region 28 along the height direction. The sludge sampling pipe is positioned at the reduced diameter position of the lower part of the equipment shell 35, is arranged at a vertical height and a distance apart, penetrates through the side wall of one side of the cone hopper of the cured sludge collecting region and is communicated with the side wall. Specifically, three groups of sludge sampling pipes can take sludge samples with different heights, so that the forming degree of an internal floccule filtering layer is judged, and the follow-up sludge discharge operation is facilitated.
Example 2
The present embodiment is based on embodiment 1, in which the upper portion of the housing 35 may be closed, and the top of the housing may be closed.
Specifically, as shown in fig. 4 and 5, by restricting the top of the housing 35 to be closed, a certain water pressure can be formed inside the housing, so that the filtration speed can be increased and the throughput of the self-circulating encryption granular sludge water purification apparatus itself can be increased.
Meanwhile, the top structure of the housing 35 is not limited, and as shown in fig. 4, the top of the housing is provided in a contracted shape, and may have a stepped structure or an arc structure. As long as a closing action is possible.
Example 3
The present embodiment is made on the basis of embodiment 1, and on the basis of the technical solutions provided in embodiments 1 and 2, as shown in fig. 1,2 and 3, the following structures are additionally provided in this embodiment:
The filter assembly 50 is arranged in the filter cavity, water to be purified enters from one end of the filter assembly 50 through the filter assembly, and then flows out from the other end of the filter assembly under the action of water pressure, so that purification operation is realized, the water to be purified flows into the upper part of the filter assembly 50 in the direction shown in fig. 1, and after purification is finished, the water obtained through purification enters into the lower end of the filter assembly 50. The filter unit 50 is built in 2 or more groups according to the size of the apparatus main body. Each group can independently operate, the clear water tank at the top forms a ring bin body, and the clear water tanks of each group of filtering units are communicated; the clean water outlet 401 is communicated with a clean water tank.
Specifically, the structure of the filter assembly 50 is not limited, and PP cotton, quartz sand, granular coconut activated carbon, sintered activated carbon filter cartridge, etc. may be used. So long as the water purification operation can be achieved.
A water conduit 60, one end of which is communicated with the water outlet part 2, and the other end of which acts upstream of the filter assembly;
A water guide pipe 70 for guiding the clear water below the water guide pipe to the upper annular clear water bin, wherein one end of the water guide pipe 70 acts on the downstream of the filtering component, and the other end is communicated with the clear water outlet; by providing the water conduit, the purified water flowing out of the water outlet portion can be guided to the filter assembly by the water conduit, and further filtering operation can be performed. After further purification by the filter assembly, the resulting water will enter the draft tube, which then further enters the upper clean water tank by pressure to flow out of the clean water outlet 401, thereby effecting the purification operation.
Furthermore, through setting up the filter chamber in the casing inside, can effectively utilize the interior space of casing for self-loopa encrypts granule mud purifier and possesses basic water purification function's basis, still can realize the further purification operation to water.
Further, in this embodiment, the method further includes: a water withdrawal pipe 90, one end of which extends outside the housing 35 and the other end of which extends inside the sewage area and upstream of the filter assembly.
By providing the water suction pipe 90, after the water suction pipe is started, the valve of the water guide pipe 60 and the valve on the water guide pipe 70 are closed, and as other filtering units are still running, clean water continuously enters the lower part of the filtering layer 50 from the water guide pipe 70 through gravity pressure, then the pollutant trapped in the filtering assembly 50 is reversely cleaned, and after the pollutant rises, the sewage is discharged out of the main body through the water guide pipe 90. The filter assembly is cleaned. After completion, the valve on the water withdrawal pipe 90 is closed, allowing the valve on the water conduit 60 to function properly. At this time, a part of the purified water located downstream of the filter assembly flows into the purified water area through the water suction pipe 90, and another part of the purified water flows reversely to the upstream position of the filter assembly under the negative pressure of the water suction pipe 90, so that the cleaning operation of the filter assembly can be realized during the reverse flow of the water, as shown in fig. 1, during the cleaning operation, the water below the filter assembly passes upward through the filter assembly and enters the upper part of the filter assembly. After the reverse cleaning is finished, the sewage can be led out to the outside through the water pumping pipe, so that the cleaning of the filtering component is realized.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. A self-circulating, encrypted granular sludge water purification apparatus, comprising:
A housing (35) on which a water inlet (1) and a water outlet (2) are provided;
a central reaction cylinder (11) arranged inside the shell (35), wherein a flocculation reaction area is formed inside the central reaction cylinder (11);
The water body accelerating device is located inside the shell (35) and located at the downstream of the water inlet part (1), a water outlet of the water body accelerating device is arranged towards the central reaction cylinder (11), and the water body accelerating device comprises: a first accelerating tube (3) arranged downstream of the water inlet part (1), at least a part of the first accelerating tube (3) being arranged in a conical shape; further comprises: at least one second accelerating tube (5) is covered above the first accelerating tube (3), and at least one part of the second accelerating tube (5) is arranged in a conical shape;
a lifting guide pipe (7), wherein one end of the lifting guide pipe (7) corresponding to the second accelerating pipe (5) is provided with a circulation flow guide cover (10), and the circulation flow guide cover (10) is covered on the periphery of the second accelerating pipe (5);
A sludge internal return pipe (30) connected with the water body accelerating device;
a sludge cover (4) arranged outside the central reaction cylinder (11), a floc gap (41) is formed between the central reaction cylinder (11) and the sludge cover (4), a sludge area is formed between the sludge cover (4) and the central reaction cylinder (11), the sludge area is arranged at the downstream of the floc gap (41) and comprises a semi-maturing sludge collecting area (17) and a suspended sludge filtering and depositing area (19) along the direction far away from the floc gap (41), and an area formed between the sludge cover (4) and the shell (35) is communicated with the internal sludge return pipe (30);
A sleeve (12) arranged on the inner side of the sludge cover (4) and positioned between the sludge cover (4) and the central reaction cylinder (11), wherein the top of the sleeve (12) is lower than the top of the sludge cover (4), and the bottom of the sleeve is positioned at the downstream of the water body accelerating device; the bottom end of the sleeve (12) is connected to the outer side wall of the second accelerating tube (5), and fluid flowing out through the floc notch (41) climbs along the sleeve;
Along the height direction, the sludge cover (4) comprises:
a first inclined section (42) corresponding to the suspended sludge filtering and settling zone (19), wherein a cured sludge collecting zone (28) is formed between the first inclined section (42) and the shell (35), and a plurality of three-phase separation plates (16) are arranged on the first inclined section (42);
a transition section (44) corresponding to the semi-digested sludge collection zone (17);
A second inclined section (43) arranged outside the sleeve (12) and connected with the transition section (44), wherein water flowing out from the flocculation gap (41) enters a region between the second inclined section (43) and the sleeve (12);
a mud water collecting tank (101) which is connected with the first accelerating tube (3) and is provided with a water outlet;
The inlet end of the sludge internal return pipe (30) enters the curing sludge collecting zone (28), and the other end of the sludge internal return pipe is communicated with the muddy water collecting tank (101).
2. The self-circulating, encrypted granular sludge water purification apparatus of claim 1, further comprising:
the filtering shell (40) is arranged on the inner wall of the shell (35), a filtering cavity is formed between the filtering shell and the shell (35), and a purified water outlet is formed in a part, corresponding to the filtering cavity, of the shell (35);
the filter assembly is arranged in the filter cavity, and a filter material is arranged in the filter assembly;
a water conduit (60) having one end in communication with the water outlet (2) and the other end acting upstream of the filter assembly;
And one end of the water guide pipe (70) acts on the downstream of the filtering component, and the other end of the water guide pipe is communicated with the purified water outlet.
3. The self-circulating, encrypted granular sludge water purification apparatus of claim 2, further comprising:
And the division plate (80) is used for dividing the filter cavity into a water purifying area and a sewage area, and a through hole which is suitable for the water guide pipe to pass through is formed in the division plate.
4. A self-circulating encryption granular sludge water purification apparatus as claimed in claim 3 wherein one end of the water conduit (70) is disposed over the via.
5. The self-circulating, encrypted granular sludge water purification apparatus of claim 4, further comprising:
and a water pumping pipe (90) with one end extending to the outer side of the shell (35) and the other end extending to the interior of the sewage area and being positioned upstream of the filtering assembly.
6. The self-circulating encryption granular sludge water purification apparatus as claimed in claim 2, wherein the filtering case (40) is annularly provided on the inner wall of the housing (35).
7. The self-circulating, encrypted granular sludge water purification apparatus of claim 1, further comprising:
A mixing zone (100) arranged between the water inlet portion (1) and the first accelerating tube (3) and in communication with the water inlet portion (1), the mixing zone comprising:
A first baffle (102) arranged at the downstream of the water outlet of the muddy water collection tank, and a first flow passage is formed between the first baffle and the muddy water collection tank;
The drainage plate (103) is arranged on the outer wall of the muddy water collection tank, a second flow passage is formed between the drainage plate and the first baffle, the first flow passage is communicated with the second flow passage, and fluid flowing out through the outlet of the second flow passage is suitable for entering the first accelerating tube (3).
8. The self-circulating encrypted granular sludge water purification apparatus as claimed in claim 7, wherein the outlet of the drainage plate is communicated with a delivery pipe (104), and the other end of the delivery pipe extends towards the sludge internal return pipe.
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