CN214653944U - Vertical-partition anoxic-aerobic-precipitation integrated sewage treatment system and stirring-aeration integrated device thereof - Google Patents
Vertical-partition anoxic-aerobic-precipitation integrated sewage treatment system and stirring-aeration integrated device thereof Download PDFInfo
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- CN214653944U CN214653944U CN202120463793.6U CN202120463793U CN214653944U CN 214653944 U CN214653944 U CN 214653944U CN 202120463793 U CN202120463793 U CN 202120463793U CN 214653944 U CN214653944 U CN 214653944U
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Abstract
The application discloses stirring aeration integrated device includes the motor and through the connecting rod with the agitator of motor output shaft linkage still establishes including the cover the aerator of connecting rod, the aerator sets up the motor with between the agitator. The motor, the aerator and the stirrer are connected into an integrated device through the connecting rod, so that the assembly process of the devices is simplified, the content space of the sewage treatment device using the integrated device is increased, and the sewage treatment efficiency is improved. The utility model provides an oxygen deficiency aerobic sedimentation integral type sewage treatment system of perpendicular subregion has adopted above-mentioned stirring aeration integral type device, installs through a supporting beam that spanes the cell body stirring aeration integrated device, simultaneously a supporting beam also regards as the separation marker in oxygen deficiency reaction zone and aerobic reaction zone, simple structure, and the installation is easy.
Description
Technical Field
The application relates to the technical field of water treatment, in particular to a vertical-partition anoxic-aerobic sedimentation integrated sewage treatment system and a stirring and aeration integrated device thereof.
Background
At present, most of sewage treatment processes adopting biochemical technology structurally realize the functions of each process treatment unit in the plane direction. The disadvantages are that: the method has the advantages of large occupied area; the sludge or the mixed liquid needs additional power for backflow, so that the energy consumption is high; and the process has low sludge concentration and poor activity, so that the impact load resistance is weak, and the effluent quality is unstable. In addition, if a conventional aeration mode is adopted, a fan is needed to provide an air source, and an additional fan room needs to be built, so that the energy consumption is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oxygen deficiency and oxygen precipitation integrated sewage treatment system and stirring and aeration integrated device thereof which have high treatment efficiency, energy saving and vertical partition for overcoming the defects of the prior art.
In order to achieve the technical purpose, the technical scheme adopted by the application is as follows:
the first aspect is a stirring and aeration integrated device, which comprises a motor, a stirrer and an aerator, wherein the stirrer is linked with an output shaft of the motor through a connecting rod, the aerator is sleeved on the connecting rod, and the aerator is arranged between the motor and the stirrer; the aerator also comprises an air suction pipe extending from the air ventilation pipeline inside the aerator; the lower pipe opening of the air suction pipe is in an open state, and the upper pipe opening of the air suction pipe extends to the outside of a preset liquid level.
Preferably, the distance between the aerator and the stirrer is within the range of 0.5-4 m.
Further preferably, the aerator takes the connecting rod as a center and is distributed with a plurality of release pipes along the circumferential direction; each of the release pipes is arranged in an upwardly extending parabolic shape.
Alternatively, the stirrer is selected from an axial flow stirrer, a mixed flow stirrer or a radial flow stirrer.
Preferably, a lifting lug is arranged at the top of the motor.
The second aspect is a vertical-partition anoxic-aerobic sedimentation integrated sewage treatment system which is characterized by comprising a tank body and the stirring and aeration integrated device in the tank body.
The device also comprises a supporting beam crossing the tank body, the motor and the aerator are fixed above the supporting beam, and the stirrer is arranged below the supporting beam.
Optionally, the support beam is provided with a limit stop for limiting the seating position of the motor and the aerator.
Preferably, the distance between the support beam and the bottom of the pool body is 1-4 m.
Further comprises a raw water distribution pipe arranged at the bottom of the tank body.
Still further, the device also comprises a return pipe vertically extending from the top to the bottom of the tank body.
Furthermore, the device also comprises a three-phase separation assembly arranged on the upper half part of the tank body; and an air suction pipe extending from an air duct in the aerator penetrates through the arrangement area of the three-phase separation assembly until the pipe orifice of the air suction pipe is exposed above the liquid level.
Compared with the prior art, the method has the following advantages:
(1) according to the stirring and aeration integrated device, the motor, the aerator and the stirrer are connected into the integrated device through the connecting rod, so that the assembling process of the devices is simplified, the content space of sewage treatment equipment using the integrated device is increased, and the sewage treatment efficiency is improved;
(2) according to the stirring and aeration integrated device, the stirrer is arranged below the aerator, so that an anoxic space can be formed in the space below the aerator, and physical separation is not needed;
(3) according to the stirring and aeration integrated device, the lower pipe opening is opened and filled, and the upper pipe opening extends to the outside of the liquid level, so that when the stirrer below the aerator rotates, negative pressure is formed near the lower pipe opening due to centrifugal force, air can be sucked from the upper pipe opening to be used for the aerator to produce dissolved air water, and a fan or a wind room is omitted;
(4) according to the stirring and aeration integrated device, the lifting lug is arranged at the top of the motor, so that the device is convenient to mount and dismount;
(5) according to the vertical-partition anoxic-aerobic sedimentation integrated sewage treatment system, the stirring and aeration integrated device is installed through the support beam crossing the tank body, and meanwhile, the support beam is also used as a separation marker of the anoxic reaction zone and the aerobic reaction zone, so that the structure is simple, and the installation is easy;
(6) according to the vertical-partition anoxic-aerobic sedimentation integrated sewage treatment system, the raw water distribution pipe is arranged at the bottom of the tank body, and the return pipe which is vertical to the bottom from the top of the tank body is arranged, so that raw water enters from the bottom of the tank body, an anoxic reaction is firstly carried out, an aerobic reaction is then carried out, the generated nitrified liquid returns to the bottom of the tank body through the return pipe for a re-reaction, and vertical circulation is realized in the tank body;
(7) the utility model provides a perpendicular subregion's oxygen deficiency good oxygen deposits integral type sewage treatment system utilizes the negative pressure principle adsorbed air, need not extra fan and provides the aeration air supply, also need not to build the fan room, and oxygen deficiency stirring and good oxygen aeration realize on a device, have saved the energy consumption greatly.
Drawings
FIG. 1 is a schematic longitudinal sectional view of a vertical zoned anoxic-aerobic sedimentation integrated sewage treatment system according to the present application.
Fig. 2 is a schematic structural diagram of the stirring and aeration integrated device of the present application.
Reference numbers in the figures: 1. the sewage treatment system comprises a sewage treatment system, 11 a tank body, 12 a stirring and aeration integrated device, 121 a motor, 1211 a lifting lug, 122 a connecting rod, 123 a stirrer, 124 an aerator, 1241 a release pipe, 1242 a pin hole, 125 an air suction pipe, 1251 an upper pipe orifice, 1252 a lower pipe orifice, 13 a support beam, 131 a pin shaft, 14 a raw water distribution pipe, 15 a return pipe, 16 a three-phase separation component, I, an anoxic reaction zone and II, an aerobic reaction zone.
Detailed Description
The present application is described in further detail below with reference to the attached drawings and the detailed description.
Referring to fig. 1, the vertical zoned anoxic-aerobic sedimentation integrated sewage treatment system 1 of the present application includes: the device comprises a tank body 11, a stirring and aeration integrated device 12 arranged in the tank body 11, a supporting beam 13 crossing the tank body 11 and used for installing the stirring and aeration integrated device 12, a raw water distribution pipe 14 arranged at the bottom of the tank body 11, and a return pipe 15 vertically extending from the top to the bottom of the tank body 11.
Specifically, the diameter-depth ratio of the tank body 11 is less than 1, and the tank body is in a deep barrel shape, the cross-sectional shape of the tank body 11 can be different according to the functional partition in the vertical direction, in this embodiment, the lower part of the tank body 11 is a cylinder, the upper part is a cube, and the middle part is a transition area.
Further, referring to fig. 2, the stirring and aeration integrated apparatus 12 includes: the stirring and aeration integrated device comprises a motor 121, a connecting rod 122 and an aerator 124, further, an output shaft of the motor 121 is linked with the connecting rod 122 through the connecting rod 122, the aerator 124 is sleeved at one end of the connecting rod 122 close to the motor 121, so that the aerator 124 is positioned between the motor 121 and the connecting rod 122, and if the stirring and aeration integrated device 12 is vertically placed, the connecting rod 122 is arranged below the aerator 124. The motor 121 controls the connecting rod 122 to rotate on one hand, and drives the aerator 124 to generate gas-dissolved water on the other hand. Since the aerator 124 is above the connecting rod 122, the dissolved air water produced by the aerator 124 naturally flows upward, and the space below the aerator 124 forms an anoxic environment, when the integrated stirring and aeration device 12 is installed in the sewage treatment system 1, the space below the aerator 124 forms an anoxic reaction zone, and the space above the aerator 124 forms an aerobic reaction zone, and the vertical partition of the sewage treatment system 1 is realized by the integrated stirring and aeration device 12. Alternatively, the connecting rod 122 can be an axial flow type stirrer, a mixed flow type stirrer or a radial flow type stirrer according to the cost and the stirring effect, and the motor 121 can be a variable frequency motor so as to regulate the speed according to the actual requirement.
Further, the aerator 124 is provided with an air suction pipe 125 extending from an air duct inside the aerator 124, a lower nozzle 1252 of the air suction pipe 125 is in an open state, preferably, the lower nozzle 1252 is above the connecting rod 122, and an upper nozzle 1251 of the air suction pipe 125 is out of the liquid level. The term "other than the liquid surface" means that the liquid surface is exposed to the outside of the side wall of the tank body 11 or above the liquid surface. Therefore, the air suction pipe 125 can suck air into the aerator 124 through the negative pressure principle to produce the dissolved air water, and the specific process is as follows: when the connecting rod 122 is activated, the liquid or air above the connecting rod 122 and below the lower nozzle 1252 forms a negative pressure due to the centrifugal force, the air at the upper nozzle 1251 automatically flows into the supplementary negative pressure region through the air suction pipe 125, and the air flowing into the air suction pipe 125 is utilized by the aerator 124 through the air suction port of the aerator 124 to produce the gas-dissolved water. Therefore, one motor 121 can control the connecting rod 122 to rotate and can also control the suction of air, and the degeneracy of multiple functions is realized.
Further, the aerator 124 circumferentially distributes a plurality of the discharge pipes 1241 centering on the connecting rod 122, preferably, a nozzle of each discharge pipe 1241 is inclined upward, and more preferably, each discharge pipe 1241 is arranged in a parabolic shape extending upward. Therefore, the distribution uniformity of the dissolved gas water in the aerobic reaction zone is better.
Further, a support beam 13 is provided across the tank body 11 to support the stirring and aeration integrated apparatus 12, specifically, below the aerator 124, so that a space of the tank body 11 below the support beam 13 is an anoxic reaction zone and a space above the support beam 13 is an aerobic reaction zone. Further, the distance between the supporting beam 13 and the bottom of the tank body 11 is set between 1 and 4m, correspondingly, the distance between the aerator 124 and the connecting rod 122 should be set between 0.5 and 4m, and the connecting rod 122 with adjustable length can be considered to be used, so that the connecting rod 122 is in the middle position of the anoxic reaction zone. As can be seen from the attached figure 1, the cylindrical space at the lower part of the tank body 11 is divided into an anoxic reaction zone and an aerobic reaction zone from bottom to top, and the middle part of the tank body 11 and the upper part of the tank body 11 both belong to aerobic reaction zones. In order to facilitate the fixing of the stirring and aeration integrated device 12 on the support beam 13, one possible implementation is that the support beam 13 is provided with a limiting member for limiting the position where the stirring and aeration integrated device 12 is located, and in the case where the motor 121 and the aerator 124 are not separable, the stirring and aeration integrated device 12 has enough self weight to be located on the support beam 13, but in order to further limit the fixing position of the stirring and aeration integrated device 12 on the support beam 13, a limiting member may be provided around the fixing position to limit the possible horizontal displacement of the motor 121 and the aerator 124. Alternatively, the pin 131 is disposed on the top surface of the supporting beam 13, the corresponding pin hole 1242 is disposed on the bottom surface of the aerator 124, and when the stirring and aeration integrated device 12 is lifted from the bottom to the top of the supporting beam 13, the pin 131 is inserted into the corresponding pin hole 1242, so that the aerator 124 is fixed to the supporting beam 13. Preferably, the top of the motor 121 is provided with a lifting lug 1211 to facilitate the installation and the removal of the stirring and aeration integrated device 12.
The sewage treatment system 1 in this embodiment further includes a raw water distribution pipe 14 disposed at the bottom of the tank body 11. The raw water distribution pipe 14 is provided with a water inlet and a plurality of water outlets, and the plurality of water outlets are approximately and uniformly distributed at the bottom of the tank body 11. The sewage treatment system 1 in this embodiment further includes a return pipe 15 extending vertically from the top to the bottom of the tank body 11, an upper end of the return pipe 15 is substantially flush with a preset highest liquid level, and a lower end of the return pipe 15 is lower than a level of the connecting rod 122. Preferably, two opposite return pipes 15 are arranged near the side wall of the tank body 11 to accelerate the return flow of the liquid.
Further, the sewage treatment system 1 in this embodiment further includes a three-phase separation assembly 16 disposed at an upper portion of the tank body 11, and the three-phase separation assembly 16 is disposed in a middle transition region and an upper cubic region of the tank body 11 for gas-liquid-solid separation of sewage during aerobic reaction. If the upper nozzle 1251 of the suction pipe 125 is disposed to be exposed above the liquid level, the suction pipe 125 may extend vertically from the aerator 124 toward the top of the tank 11 and penetrate through the middle and upper portions of the tank 11, i.e., the layout region of the three-phase separation module 16.
Thus, the gas-liquid flow manner inside the sewage treatment system 1 of the present embodiment is as follows:
as shown by the dotted arrow in fig. 1, the raw water first enters the anoxic reaction zone through the raw water distribution pipe 14, the water level gradually rises to enter the aerobic reaction zone, meanwhile, the connecting rod 122 located in the anoxic reaction zone provides stirring power, so that the submersible aerator 124 in the aerobic reaction zone sucks air through the negative pressure air suction pipe 125, then releases the dissolved air water through the release pipe 1241, on one hand, oxygen required for the aerobic reaction is provided, on the other hand, air lift circulation power is provided, the nitrified liquid collected at the upper part of the aerobic reaction zone is collected through the return pipe 15 and then returns to the anoxic reaction zone again for denitrification, the supernatant separated by the three-phase separation assembly 16 overflows to enter the next treatment process, or is discharged after reaching the standard after detection, and the sludge containing microorganisms returns to the tank body 11 again to participate in biochemical reaction.
The treatment effect of the vertical-partition anoxic-aerobic-precipitation integrated sewage treatment system and the stirring-aeration integrated device thereof is further illustrated by combining the examples.
Example 1
The average raw water quality of domestic sewage of a certain village and town is as follows: COD (Chemical Oxygen Demand) 225mg/L (milligram per liter), ammonia nitrogen 30mg/L, total nitrogen 40mg/L and total phosphorus 2.0mg/L are collected by a collecting tank, the sewage enters an anoxic reaction zone through a raw water distributing pipe by adopting the vertical-partition anoxic-aerobic precipitation integrated sewage treatment system 1, an anoxic zone stirrer positioned in the anoxic reaction zone provides stirring power, the water level gradually rises to enter an aerobic reaction zone, a submersible aerator in the aerobic reaction zone sucks air through a negative pressure air suction pipe extending out of the water surface and then releases dissolved air water through a release pipe at the bottom, on one hand, Oxygen required by the aerobic reaction is provided, on the other hand, air lift circulation power is provided, nitrified liquid at the upper part of the aerobic reaction zone is collected through a nitrified liquid return pipe and then returns to the anoxic reaction zone for denitrification, and after mud and water at the top of the system are separated, the supernatant fluid is discharged after reaching the standard, and the sludge containing the microorganisms returns to the system again to participate in biochemical reaction. After system treatment, the average effluent quality is as follows: COD 45mg/L, ammonia nitrogen 1.0mg/L, total nitrogen 15mg/L, total phosphorus 0.5mg/L, and ton water power consumption < 0.15kWh (kilowatt-hour).
Example 2
The quality of raw water in domestic sewage in a certain expressway service area is as follows: the sewage treatment system comprises a COD (chemical oxygen demand) 280mg/L, ammonia nitrogen 60mg/L, total nitrogen 80mg/L and total phosphorus 4.0mg/L, and is characterized in that by adopting the vertical-subarea anoxic and aerobic sedimentation integrated sewage treatment system 1, sewage enters an anoxic reaction zone through a raw water distribution pipe, an anoxic zone stirrer positioned in the anoxic reaction zone provides stirring power, the water level gradually rises to enter an aerobic reaction zone, a submersible aerator of the aerobic reaction zone sucks air through a negative pressure air suction pipe extending out of the water surface, then releasing dissolved gas water through a release pipe at the bottom, on one hand, providing oxygen required by aerobic reaction, on the other hand, providing air lift circulation power, collecting nitrified liquid at the upper part of an aerobic reaction zone through a nitrified liquid return pipe, returning to an anoxic reaction zone again for denitrification, after mud-water separation at the top of the system, supernatant reaches the standard and is discharged, and sludge containing microorganisms returns to the system again to participate in biochemical reaction. After system treatment, the average effluent quality is as follows: COD is 46mg/L, ammonia nitrogen is 0.2mg/L, total nitrogen is 18mg/L, total phosphorus is 0.8mg/L, and the power consumption per ton of water is 0.35 kWh.
To sum up, the stirring aeration integrated device of this application include the motor and through the connecting rod with the agitator of motor output shaft linkage still establishes including the cover the aerator of connecting rod, the aerator sets up the motor with between the agitator. The motor, the aerator and the stirrer are connected into an integrated device through the connecting rod, so that the assembly process of the devices is simplified, the content space of the sewage treatment device using the integrated device is increased, and the sewage treatment efficiency is improved. The vertical-partition anoxic-aerobic-sedimentation integrated sewage treatment system adopts the stirring-aeration integrated device, the stirring-aeration integrated device is installed through the support beam crossing the tank body, and the support beam is also used as a separation marker of the anoxic reaction zone and the aerobic reaction zone, so that the structure is simple and the installation is easy; in addition, the sewage treatment system adsorbs air by using a negative pressure principle, an additional fan is not needed for providing an aeration air source, a fan room is not needed to be built, anoxic stirring and aerobic aeration are realized on one device, and energy consumption is greatly saved.
The above embodiments are only preferred embodiments of the present application, but not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present application should be construed as equivalents and are included in the scope of the present application.
Claims (12)
1. A stirring and aerating integrated device is characterized by comprising a motor, a stirrer linked with an output shaft of the motor through a connecting rod, and an aerator sleeved on the connecting rod, wherein the aerator is arranged between the motor and the stirrer; the aerator also comprises an air suction pipe extending from the air ventilation pipeline inside the aerator; the lower pipe opening of the air suction pipe is in an open state, and the upper pipe opening of the air suction pipe extends to the outside of a preset liquid level.
2. The apparatus of claim 1, wherein the distance between the aerator and the stirrer is in the range of 0.5 to 4 m.
3. The apparatus of claim 1, wherein the aerator comprises a plurality of release pipes circumferentially distributed about the connecting rod; each of the release pipes is arranged in an upwardly extending parabolic shape.
4. The apparatus of claim 1, wherein the agitator is selected from the group consisting of an axial flow agitator, a mixed flow agitator, and a radial flow agitator.
5. The apparatus of claim 1, wherein a lifting lug is disposed on a top of the motor.
6. A vertical-partition anoxic-aerobic sedimentation integrated sewage treatment system is characterized by comprising a tank body and the stirring and aeration integrated device as claimed in any one of claims 1 to 5 arranged in the tank body.
7. The system of claim 6, further comprising a support beam spanning the tank body, the motor and aerator being secured above the support beam, the agitator being disposed below the support beam.
8. The system of claim 7, wherein the support beam is provided with a stopper for limiting a seating position of the motor and the aerator.
9. The system of claim 7, wherein the support beam is spaced from the bottom of the tank by 1-4 m.
10. The system of claim 6, further comprising a raw water distributor disposed at the bottom of the tank body.
11. The system of claim 10, further comprising a return tube extending vertically from a top to a bottom of the cell body.
12. The system of claim 6, further comprising a three-phase separation assembly disposed in an upper half of the tank body; and an air suction pipe extending from an air duct in the aerator penetrates through the arrangement area of the three-phase separation assembly until the pipe orifice of the air suction pipe is exposed above the liquid level.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120463793.6U CN214653944U (en) | 2021-03-03 | 2021-03-03 | Vertical-partition anoxic-aerobic-precipitation integrated sewage treatment system and stirring-aeration integrated device thereof |
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| CN202120463793.6U CN214653944U (en) | 2021-03-03 | 2021-03-03 | Vertical-partition anoxic-aerobic-precipitation integrated sewage treatment system and stirring-aeration integrated device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850899A (en) * | 2021-03-03 | 2021-05-28 | 清研环境科技股份有限公司 | Vertical-partition anoxic-aerobic-precipitation integrated sewage treatment system and stirring-aeration integrated device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850899A (en) * | 2021-03-03 | 2021-05-28 | 清研环境科技股份有限公司 | Vertical-partition anoxic-aerobic-precipitation integrated sewage treatment system and stirring-aeration integrated device thereof |
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