CN220502728U - Improved generation air supporting pond - Google Patents
Improved generation air supporting pond Download PDFInfo
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- CN220502728U CN220502728U CN202321651676.8U CN202321651676U CN220502728U CN 220502728 U CN220502728 U CN 220502728U CN 202321651676 U CN202321651676 U CN 202321651676U CN 220502728 U CN220502728 U CN 220502728U
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- mud discharging
- mud
- negative pressure
- water
- floatation tank
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- 238000007599 discharging Methods 0.000 claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000010802 sludge Substances 0.000 claims abstract description 66
- 239000010865 sewage Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229940037003 alum Drugs 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Physical Water Treatments (AREA)
Abstract
The utility model relates to an improved floatation tank, which belongs to the technical field of water treatment and comprises: the pool body and the mud discharging system; the pond body comprises a water inlet reaction zone, a plurality of mud bucket zones and a water outlet zone, wherein the upper ends of the water inlet reaction zone, the mud bucket zones and the water outlet zone are sequentially communicated, a water inlet for sewage is formed in the water inlet reaction zone, a water outlet is formed in the water outlet zone, and the lower part of each mud bucket zone is of a structure which gradually becomes smaller from top to bottom; the mud discharging system comprises a mud discharging pipe, a plurality of mud discharging branch pipes and a plurality of negative pressure mud discharging devices, wherein the plurality of negative pressure mud discharging devices are arranged at the bottoms of the mud bucket areas, at least one negative pressure mud discharging device is arranged at the bottom of each mud bucket area, and the discharge end of each negative pressure mud discharging device is connected with the mud discharging pipe through the mud discharging branch pipe. The air floatation tank has a simple structure, is convenient to operate, can improve the separation effect of sludge in the sewage treatment process and reduce the water content after the sludge is separated, improves the removal efficiency of suspended matters in water, reduces the sludge load of a subsequent treatment unit, and has very important application value and environmental protection benefit.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to an improved air floatation tank.
Background
The air floatation tank is a very common water treatment device in the water treatment industry, has very wide application in the aspect of water treatment of oil and gas field produced water in recent years, and has the working principle that part of treated wastewater circularly flows into a dissolved air tank, air is supersaturated and dissolved in a pressurized air state, then the air is mixed with raw water added with flocculating agent at the inlet of the air floatation tank, and the supersaturated air is released due to pressure reduction, so that tiny bubbles are formed and quickly attached to suspended matters, and the suspended matters are lifted to the surface of the air floatation tank. The method is widely applied to a rectangular flat-bottom air floatation tank in the water treatment industry, so that a sludge floatation layer which is easy to remove is formed, and heavier solid substances are precipitated at the bottom of the tank. But the device has obvious defects that the upper sludge floating layer can remove sludge through the sludge scraping device, but larger and heavier solid substances are precipitated at the bottom of the tank, so that the contact area of the larger and heavier solid substances is large, the sludge is distributed in a dispersed manner due to poor flowing effect, the bottom sludge discharging device cannot completely collect and empty the sludge, meanwhile, the collected sludge has higher water content, the long-term accumulated sludge discharging system can only remove precipitated sludge near a sewage outlet, and if the water content is high, the sludge cannot be timely cleaned, so that a water outlet groove of an air floatation tank is possibly blocked. Particularly, under the background that continuous production is needed in an oil-gas field and frequent production stopping detection cannot be realized, long-term accumulation of sludge at the bottom of the tank is easily caused, a water passing port and a sewage outlet at the bottom of the air floatation tank are blocked, the treatment effect of the air floatation tank is greatly reduced, and safety and environmental protection risks such as overflow of the air floatation tank are easily caused.
Therefore, there is a need to design an improved floatation tank to overcome the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide an improved floatation tank which has a simple structure, is convenient to operate, can improve the separation effect of sludge in the sewage treatment process, reduce the water content after the sludge is separated, improve the removal efficiency of suspended matters in water, reduce the sludge load of a subsequent treatment unit, and has very important application value and environmental protection benefit.
The utility model provides an improved floatation tank, which comprises: the pool body and the mud discharging system;
the pond body comprises a water inlet reaction zone, a plurality of mud bucket zones and a water outlet zone, wherein the upper ends of the water inlet reaction zone, the mud bucket zones and the water outlet zone are sequentially communicated, a water inlet for sewage is formed in the water inlet reaction zone, a water outlet is formed in the water outlet zone, and the lower part of each mud bucket zone is of a structure which gradually becomes smaller from top to bottom;
the mud discharging system comprises a mud discharging pipe, a plurality of mud discharging branch pipes and a plurality of negative pressure mud discharging devices, wherein the plurality of negative pressure mud discharging devices are arranged at the bottoms of the mud bucket areas, at least one negative pressure mud discharging device is arranged at the bottom of each mud bucket area, and the discharge end of each negative pressure mud discharging device is connected with the mud discharging pipe through the mud discharging branch pipe.
Preferably, the water reaction zone is provided with a dosing port.
Preferably, a stirring device is arranged in the water reaction zone.
Preferably, the lower part of the mud bucket area is in an inverted trapezoid shape.
Preferably, a filter screen is arranged at the feed inlet of the negative pressure mud discharging device.
Preferably, a plurality of mud discharging branch pipes are provided with mud discharging valves.
Preferably, the mud discharging pipe is provided with a mud discharging valve.
Preferably, the improved air floatation tank further comprises a discharge assisting pump, wherein the feeding end and the discharging end of the discharge assisting pump are connected with the sludge discharge pipe and are respectively arranged on two sides of the sludge discharge valve of the sludge discharge pipe, and the feeding end and the discharging end of the discharge assisting pump are respectively provided with the discharge assisting valve.
Preferably, two negative pressure mud discharging devices are arranged at the bottom of each mud bucket area.
Preferably, 4 mud bucket areas are sequentially arranged between the water inlet reaction area and the water outlet area.
The utility model has the following advantages and beneficial effects: the air floatation tank can set the number of mud bucket areas according to different treatment capacity in the treatment process of the high suspended matter produced water of the oil and gas field, and collect and remove the sediments generated after the coagulating sedimentation reaction of the air floatation tank in a partitioning and sectional manner, so that the suspended matter content in a subsequent treatment unit is greatly reduced; meanwhile, the negative pressure sludge discharger is arranged at the bottom of the mud bucket area, a certain negative pressure is formed by applying a hydraulic principle to the sludge at the bottom of the mud bucket area, the sludge is discharged under the action of pressure difference, the time interval for periodically cleaning the sludge is effectively prolonged, and the pollution caused by the pool bottom sludge excited by unstable water flow of the conventional sludge discharge system is avoided. The air floatation tank has a simple structure, is convenient to operate, can improve the separation effect of sludge in the sewage treatment process and reduce the water content after the sludge is separated, improves the removal efficiency of suspended matters in water, reduces the sludge load of a subsequent treatment unit, and has very important application value and environmental protection benefit.
Drawings
FIG. 1 is a schematic view of an improved floatation tank in accordance with a preferred embodiment of the present utility model;
FIG. 2 is a top view of an improved floatation tank in accordance with a preferred embodiment of the present utility model;
reference numerals illustrate:
1. a tank body 11, an incoming water reaction zone 12, a mud bucket zone 13 and a water outlet zone,
2. a mud discharging system 21, a mud discharging pipe 22, a mud discharging branch pipe 23, a negative pressure mud discharging device 24 and a mud discharging valve,
3. a discharge-assisting pump 31 and a discharge-assisting valve.
Detailed Description
For a better understanding of the present utility model, the following examples are further illustrative of the present utility model, but the contents of the present utility model are not limited to the following examples only.
As shown in fig. 1 and 2, an improved floatation tank includes: a tank body 1 and a mud discharging system 2; the pool body 1 comprises an incoming water reaction zone 11, a plurality of mud bucket zones 12 and a water outlet zone 13, wherein the upper ends of the incoming water reaction zone 11, the mud bucket zones 12 and the water outlet zone 13 are sequentially communicated, a water inlet for sewage is formed in the incoming water reaction zone 11, the water outlet zone 13 is provided with a water outlet, and the lower part of each mud bucket zone 12 is of a structure which gradually becomes smaller from top to bottom; the sludge discharge system 2 comprises a sludge discharge pipe 21, a plurality of sludge discharge branch pipes 22 and a plurality of negative pressure sludge discharge devices 23, wherein the negative pressure sludge discharge devices 23 are arranged at the bottoms of the sludge bucket areas 12, at least one negative pressure sludge discharge device 23 is arranged at the bottom of each sludge bucket area 12, and the discharge end of each negative pressure sludge discharge device 23 is connected with the sludge discharge pipe 21 through the sludge discharge branch pipe 22.
In this embodiment, for convenience of feeding or dosing, a dosing port is provided on the incoming water reaction zone 11; in order to improve the reaction efficiency, a stirring device is arranged in the incoming water reaction zone 11, so that the reaction of the medicine and the sewage is facilitated.
As shown in fig. 1 and 2, 4 sludge bucket areas 12 are sequentially arranged between the incoming water reaction area 11 and the water outlet area 13, the lower part of the sludge bucket area 12 is in an inverted trapezoid shape, heavier impurities in sewage passing through the sludge bucket area 12 are gradually precipitated in the sludge bucket area 12, and due to the inverted trapezoid shape, the impurities are gradually accumulated and precipitated at the bottom along the side wall to form sludge, and the sludge is pumped out by the negative pressure sludge discharger 23. In order to prevent the negative pressure mud discharging device 23 from being blocked and ensure the normal work of the negative pressure mud discharging device, a filter screen is arranged at the feed inlet of the negative pressure mud discharging device 23, and larger impurities are filtered, so that the negative pressure mud discharging device is convenient for cleaning in the later period of workers. And in order to improve the mud discharging efficiency, two negative pressure mud discharging devices 23 are arranged at the bottom of each mud bucket area 12. The mud bucket area 12 is a vertical mud bucket, and the size and the number of the mud bucket can be set according to the size and the processing capacity of the sedimentation area of the air floatation tank.
Meanwhile, the mud discharging valves 24 are arranged on the mud discharging branch pipes 22, and the mud discharging time and sequence of the negative pressure mud discharging device 23 in each mud bucket area 12 can be adjusted and controlled by controlling the switches of the mud discharging valves, so that the device is simple, convenient, practical and flexible.
As shown in fig. 2, the mud discharging valve 24 is arranged on the mud discharging pipe 21, meanwhile, the improved air floatation tank further comprises a drainage assisting pump 3, the feeding end and the discharging end of the drainage assisting pump 3 are connected with the mud discharging pipe 21 and are respectively arranged on two sides of the mud discharging valve 24 of the mud discharging pipe 21, and the feeding end and the discharging end of the drainage assisting pump 3 are respectively provided with a drainage assisting valve 31, so that the mud discharging speed can be greatly improved, and the problem of pipeline blockage is not easy to cause.
In practical application, the sewage is stirred in the incoming water reaction zone 11 to form alum flowers with different sizes to suspend in water, and destabilization is realized under the action of aeration. In the mud bucket area 12, a part of lighter oil sludge floats on the water surface under the action of gravity, the heavier oil sludge is deposited on the bottom, and the alum flowers with larger volume and some sediment are mostly deposited in the mud bucket area 12. Meanwhile, as the contact area of the sludge at the bottom of the mud bucket area 12 is small, the collected sludge is relatively dense, the water content of the sludge can be greatly reduced under the pressure effect of the bottom water, and the negative pressure mud discharging device 23 is arranged at the bottom of the mud bucket, so that the time interval for periodically cleaning the sludge is effectively prolonged, the pressure difference and the discharge liquid speed of the deposited sludge at the bottom of the tank are increased, the viscosity of the sludge is reduced, and the mud discharging effect is improved. Thus, the problems of inconvenient sludge collection and sludge discharge at the bottom of the air floatation tank are effectively solved, the water content of the collected sludge is greatly reduced, and the technical requirement of sludge collection is more convenient to achieve.
The air floatation tank has a simple structure, is convenient to operate, can improve the separation effect of sludge in the sewage treatment process and reduce the water content after the sludge is separated, improves the removal efficiency of suspended matters in water, reduces the sludge load of a subsequent treatment unit, and has very important application value and environmental protection benefit.
While the utility model has been described with respect to the preferred embodiments, it will be understood that the utility model is not limited thereto, but is capable of modification and variation without departing from the spirit of the utility model, as will be apparent to those skilled in the art.
Claims (10)
1. An improved generation air supporting pond, characterized in that includes: the pool body and the mud discharging system;
the pond body comprises a water inlet reaction zone, a plurality of mud bucket zones and a water outlet zone, wherein the upper ends of the water inlet reaction zone, the mud bucket zones and the water outlet zone are sequentially communicated, a water inlet for sewage is formed in the water inlet reaction zone, a water outlet is formed in the water outlet zone, and the lower part of each mud bucket zone is of a structure which gradually becomes smaller from top to bottom;
the mud discharging system comprises a mud discharging pipe, a plurality of mud discharging branch pipes and a plurality of negative pressure mud discharging devices, wherein the plurality of negative pressure mud discharging devices are arranged at the bottoms of the mud bucket areas, at least one negative pressure mud discharging device is arranged at the bottom of each mud bucket area, and the discharge end of each negative pressure mud discharging device is connected with the mud discharging pipe through the mud discharging branch pipe.
2. An improved floatation tank as recited in claim 1, wherein: the water reaction zone is provided with a dosing port.
3. An improved floatation tank as recited in claim 1, wherein: a stirring device is arranged in the water reaction zone.
4. An improved floatation tank as recited in claim 1, wherein: the lower part of the mud bucket area is in an inverted trapezoid shape.
5. An improved floatation tank as recited in claim 1, wherein: a filter screen is arranged at the feed inlet of the negative pressure mud discharging device.
6. An improved floatation tank as recited in claim 1, wherein: and a plurality of mud discharging branch pipes are provided with mud discharging valves.
7. An improved floatation tank as recited in claim 1, wherein: the mud discharging pipe is provided with a mud discharging valve.
8. An improved floatation tank as recited in claim 7, wherein: the improved air floatation tank further comprises an auxiliary discharge pump, wherein the feeding end and the discharging end of the auxiliary discharge pump are connected with the sludge discharge pipe and are respectively arranged on two sides of the sludge discharge valve of the sludge discharge pipe, and the feeding end and the discharging end of the auxiliary discharge pump are respectively provided with an auxiliary discharge valve.
9. An improved floatation tank as recited in claim 1, wherein: two negative pressure mud discharging devices are arranged at the bottom of each mud bucket area.
10. An improved floatation tank as recited in claim 1, wherein: 4 mud bucket areas are sequentially arranged between the water inlet reaction area and the water outlet area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651676.8U CN220502728U (en) | 2023-06-26 | 2023-06-26 | Improved generation air supporting pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651676.8U CN220502728U (en) | 2023-06-26 | 2023-06-26 | Improved generation air supporting pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220502728U true CN220502728U (en) | 2024-02-20 |
Family
ID=89880015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321651676.8U Active CN220502728U (en) | 2023-06-26 | 2023-06-26 | Improved generation air supporting pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220502728U (en) |
-
2023
- 2023-06-26 CN CN202321651676.8U patent/CN220502728U/en active Active
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