CN216191584U - Oil gas field wastewater pretreatment integrated device - Google Patents
Oil gas field wastewater pretreatment integrated device Download PDFInfo
- Publication number
- CN216191584U CN216191584U CN202122563632.7U CN202122563632U CN216191584U CN 216191584 U CN216191584 U CN 216191584U CN 202122563632 U CN202122563632 U CN 202122563632U CN 216191584 U CN216191584 U CN 216191584U
- Authority
- CN
- China
- Prior art keywords
- oil
- area
- pipe
- water
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model discloses an oil-gas field wastewater pretreatment integrated device, which integrates demulsification, gel breaking, coagulation, flocculation, oil separation, sedimentation and air floatation into a whole, has multiple functions and high integration, greatly improves the pretreatment effect of oil-gas wastewater, reduces the equipment investment cost and the occupied area, and is convenient to transport and install; the hydraulic flocculation is carried out through the partition plate, so that the power consumption is reduced, and meanwhile, the through holes in the partition plate can be used for dividing the colloidal block flocculation, so that the blocking of a pool body by large flocs is avoided; oil substances firstly pass through an inclined plate oil separation and precipitation area, so that oil with the density higher than that of water is removed through precipitation, the oil with the density lower than that of water naturally floats upwards, and the oil with the density closer to that of water is removed through a subsequent air floatation process, so that the oil removal effect is good, the energy consumption is low, and the quality of effluent is good; the inclined plate oil separation settling zone can increase the settling area and improve the settling effect by arranging the inclined plate, and the bottom of the inclined plate can be back-washed for automatically cleaning the settled sludge.
Description
The technical field is as follows:
the utility model relates to the technical field of wastewater treatment, in particular to an oil and gas field wastewater pretreatment integrated device.
Background art:
during the exploitation of oil and gas fields, a large amount of oil and gas field wastewater is generated. The oil and gas field wastewater mainly refers to wastewater produced in the oil and gas field in the exploitation process, and comprises produced water, fracturing flowback fluid and the like. The oil-gas water has the characteristics of high oil content, high organic matters, high suspended matters, high salt and high viscosity, and can be recycled after the oil-gas field wastewater is treated.
In the process of treating the wastewater of the oil and gas field, an oil separation tank and an air flotation device are generally adopted to remove petroleum substances, then particles with specific gravity larger than that of water are removed through precipitation, and a coagulation tank is arranged before precipitation and is used for adding medicaments, coagulating and flocculating. Meanwhile, as the oil and gas fields are usually distributed in the suburb areas far away from towns and industrial parks, the factory building environment is severe, the positions are remote, no proper water and electricity sources exist, and the establishment of a special wastewater treatment plant is difficult. Therefore, at present, the oil-gas field wastewater treatment generally adopts a plurality of integrated devices such as an oil separation tank, a medicament reaction tank, a flocculation sedimentation tank and the like to be operated in series so as to achieve the purpose of removing petroleum, suspended matters and colloids.
It has the problems that: the equipment has single function, a large number of equipment, long process flow and poor treatment effect; the sludge amount of the sedimentation tank is large, the viscosity is high, the solid load of the sedimentation tank is high, and the equipment is easy to be polluted and blocked; the particulate matters with specific gravity smaller than that of water are difficult to precipitate and remove, and the quality of the produced water in the sedimentation tank is poor; the equipment integration degree is low, a large amount of installation and debugging need to be carried out on site, and the installation is complicated, the debugging is difficult, and the operation degree of difficulty is big.
The utility model has the following contents:
the utility model aims to provide an oil and gas field wastewater pretreatment integrated device.
The utility model is implemented by the following technical scheme:
an oil and gas field wastewater pretreatment integrated device comprises a mechanical mixing area and a hydraulic flocculation area which are integrated in the middle of a box body, wherein a mixing cylinder body of the mechanical mixing area is coaxially arranged with an outer annular cylinder and an inner annular cylinder of the hydraulic flocculation area; an inclined plate oil separation settling zone, an air flotation separation zone and a clear water zone are respectively and sequentially integrated in the box body on two sides of the hydraulic flocculation zone in the length direction of the box body;
the mechanical mixing area is separated from the hydraulic flocculation area through a mixing cylinder, the hydraulic flocculation area is separated from the inclined plate oil separation and precipitation area through a first guide wall, the inclined plate oil separation and precipitation area is separated from the air floatation separation area through a second guide wall, and the air floatation separation area is separated from the clear water area through a third guide wall;
and the top of the mechanical mixing area is communicated with the top of the hydraulic flocculation area, the bottom of the hydraulic flocculation area is communicated with the bottom of the inclined plate oil separation settling area, the top of the inclined plate oil separation settling area is communicated with the top of the air floatation separation area, and the bottom of the air floatation separation area is communicated with the bottom of the clear water area.
Further, a stirrer is arranged in the mixing cylinder, and the medicine outlet end of the coagulant medicine adding pipe, the medicine outlet end of the demulsifier medicine adding pipe and the water outlet end of the raw water inlet pipe all penetrate through the box body and the mixing cylinder and are arranged in the mixing cylinder below the blades of the stirrer; the flocculant dosing pipe is arranged in the mixing cylinder above the blades of the stirrer, and the outlet end of the flocculant dosing pipe penetrates through the box body and the mixing cylinder.
Further, an inner annular cylinder is arranged between the mixing cylinder body and the outer annular cylinder, a gap is reserved between the bottom end of the inner annular cylinder and the bottom of the box body, and the bottom end of the outer annular cylinder is hermetically and fixedly connected with the bottom of the box body;
multiple layers of horizontally arranged annular small-aperture partition plates are arranged between the inner annular cylinder and the mixing cylinder body from top to bottom, and multiple layers of horizontally arranged annular large-aperture partition plates are arranged between the outer annular cylinder and the inner annular cylinder from top to bottom;
the small-aperture partition plate and the large-aperture partition plate are both provided with a plurality of through holes, and the aperture of the through hole on the small-aperture partition plate is smaller than that of the through hole on the large-aperture partition plate.
Further, a first guide wall is arranged between the outer annular cylinder and the second guide wall, a plurality of inclined plates which are arranged in parallel are arranged between the first guide wall and the second guide wall, the vertical distance between every two adjacent inclined plates is 80-200 mm, and the included angle between each inclined plate and the horizontal direction is 60-70 degrees.
Further, outer annular cylinder with bottom half between the second water conservancy diversion wall is equipped with the mud pipe that a plurality of levels set up evenly seted up a plurality of mud holes of advancing on the mud pipe, the one end of mud pipe is enclosed construction, the other end of mud pipe runs through the box with arrange in the mud main intercommunication in the box outside the mud main's play mud end is equipped with the mud valve.
Further, the bottom half of air supporting disengagement zone is equipped with the dissolved air water release pipe that a plurality of levels set up dissolve air water release pipe and evenly seted up a plurality of dissolved air water holes of leaving, the one end of dissolving air water release pipe is enclosed construction, the other end of dissolving air water release pipe runs through the box with arrange in the liquid outlet intercommunication of the dissolved air pump in the box outside.
Further, a water inlet of the dissolved air pump is communicated with the clean water area through a pipeline, and an air outlet of the air compressor is communicated with an air inlet of the dissolved air pump through an air pipe.
Furthermore, a liquid outlet of the dissolved air pump is communicated with the sludge discharge main pipe through a back flushing pipe, and a back flushing valve is arranged on the back flushing pipe.
Furthermore, an oil scraping and slag scraping machine is arranged above the inclined plate of the inclined plate oil separation settling zone and at the top of the air floatation separation zone, a sludge collecting groove with an upward opening is arranged at the upper part of the third guide wall close to one side of the air floatation separation zone, the top end of the sludge collecting groove is higher than the top end of the second guide wall, and the sludge collecting groove penetrates through the box body and is communicated with the outside of the box body.
Furthermore, a water collecting tank is arranged at the upper part of the clean water area and is communicated with the outside of the box body.
The utility model has the advantages that:
1. the integrated device integrates demulsification, gel breaking, coagulation, flocculation, oil separation, precipitation and air floatation, has multiple functions and high integration, greatly improves the pretreatment effect of oil-gas wastewater, reduces the equipment investment cost and the occupied area, and is convenient to transport and install;
2. the hydraulic flocculation is carried out through the partition plate, so that the power consumption is reduced, and meanwhile, the through holes in the partition plate can be used for dividing the colloidal block flocculation, so that the blocking of a pool body by large flocs is avoided;
3. oil substances firstly pass through an inclined plate oil separation and precipitation area, so that oil with the density higher than that of water is removed through precipitation, the oil with the density lower than that of water naturally floats upwards, and the oil with the density closer to that of water is removed through a subsequent air floatation process, so that the oil removal effect is good, the energy consumption is low, and the quality of effluent is good;
4. the inclined plate oil separation settling zone can increase the settling area and improve the settling effect by arranging the inclined plate, and the bottom of the inclined plate can be back-washed for automatically cleaning the settled sludge.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present embodiment;
fig. 2 is a schematic top view of the oil scraper and the slag scraper according to this embodiment.
In the figure: the device comprises a box body 1, a mechanical mixing zone 2, a hydraulic flocculation zone 3, an inclined plate oil separation settling zone 4, an air floatation separation zone 5, a clear water zone 6, a mixing cylinder 7, a stirrer 8, an inner annular cylinder 9, an outer annular cylinder 10, a small-aperture partition 11, a large-aperture partition 12, a first guide wall 13, a second guide wall 14, a third guide wall 15, a coagulant dosing pipe 16, a demulsifier dosing pipe 17, a flocculant dosing pipe 18, a raw water inlet pipe 19, an inclined plate 20, a sludge discharge pipe 21, a sludge discharge main pipe 22, a sludge discharge valve 23, an air-water dissolved release pipe 24, a dissolved air pump 25, a water collecting tank 26, a backwashing pipe 27, a backwashing valve 28, an oil and slag scraping machine 29 and a sludge collecting tank 30.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1 and 2, the integrated device for pretreating oil and gas field wastewater comprises a mechanical mixing zone 2 and a hydraulic flocculation zone 3 which are integrated in the middle of a box body 1, wherein a mixing cylinder body 7 of the mechanical mixing zone 2 is coaxially arranged with an outer annular cylinder 10 and an inner annular cylinder 9 of the hydraulic flocculation zone 3; an inclined plate oil separation settling zone 4, an air flotation separation zone 5 and a clear water zone 6 are respectively and sequentially integrated in the box body 1 at two sides of the hydraulic flocculation zone 3 in the length direction of the box body 1;
the mechanical mixing area 2 is separated from the hydraulic flocculation area 3 through a mixing cylinder 7, the hydraulic flocculation area 3 is separated from the inclined plate oil separation and precipitation area 4 through a first guide wall 13, the inclined plate oil separation and precipitation area 4 is separated from the air floatation separation area 5 through a second guide wall 14, and the air floatation separation area 5 is separated from the clear water area 6 through a third guide wall 15;
and the top of the mechanical mixing area 2 is communicated with the top of the hydraulic flocculation area 3, the bottom of the hydraulic flocculation area 3 is communicated with the bottom of the inclined plate oil separation settling area 4, the top of the inclined plate oil separation settling area 4 is communicated with the top of the air flotation separation area 5, and the bottom of the air flotation separation area 5 is communicated with the bottom of the clear water area 6.
A stirrer 8 is arranged in the mixing cylinder 7, and the medicine outlet end of the coagulant medicine adding pipe 16, the medicine outlet end of the demulsifier medicine adding pipe 17 and the water outlet end of the raw water inlet pipe 19 all penetrate through the box body 1 and the mixing cylinder 7 and are arranged in the mixing cylinder 7 below the blades of the stirrer 8; the flocculant dosing pipe 18 has a drug outlet end penetrating through the box body 1 and the mixing cylinder 7 and is arranged in the mixing cylinder 7 above the blades of the stirrer 8.
An inner annular cylinder 9 is arranged between the mixing cylinder 7 and the outer annular cylinder 10, a gap is reserved between the bottom end of the inner annular cylinder 9 and the bottom of the box body 1, and the bottom end of the outer annular cylinder 10 is hermetically and fixedly connected with the bottom of the box body 1;
a plurality of layers of annular small-aperture partition plates 11 which are horizontally arranged are arranged between the inner annular cylinder 9 and the mixing cylinder 7 from top to bottom, and a plurality of layers of annular large-aperture partition plates 12 which are horizontally arranged are arranged between the outer annular cylinder 10 and the inner annular cylinder 9 from top to bottom;
a plurality of through holes are formed in the small-aperture partition plate 11 and the large-aperture partition plate 12, and the aperture of the through hole in the small-aperture partition plate 11 is smaller than that of the through hole in the large-aperture partition plate 12.
A first guide wall 13 is arranged between the outer annular cylinder 10 and the second guide wall 14, a plurality of inclined plates 20 which are arranged in parallel are arranged between the first guide wall 13 and the second guide wall 14, the vertical distance between every two adjacent inclined plates 20 is 80-200 mm, and the included angle between each inclined plate 20 and the horizontal direction is 60-70 degrees.
The mud discharging pipe 21 that a plurality of levels set up is equipped with to the 1 bottom of box between outer annular section of thick bamboo 10 and second water conservancy diversion wall 14, has evenly seted up a plurality of mud holes of advancing on mud discharging pipe 21, and the one end of mud discharging pipe 21 is enclosed construction, and the other end of mud discharging pipe 21 runs through box 1 and arranges the mud house steward 22 intercommunication in the box 1 outside in, is equipped with mud valve 23 at the play mud end of mud house steward 22.
The bottom of the box body 1 of the air floatation separation area 5 is provided with a plurality of horizontally arranged dissolved air water release pipes 24, a plurality of dissolved air water outlet holes are uniformly formed in the dissolved air water release pipes 24, one end of each dissolved air water release pipe 24 is of a closed structure, and the other end of each dissolved air water release pipe 24 penetrates through the box body 1 and is communicated with a liquid outlet of a dissolved air pump 25 arranged outside the box body 1.
The water inlet of the dissolved air pump 25 is communicated with the clear water area 6 through a pipeline, and the air outlet of the air compressor is communicated with the air inlet of the dissolved air pump 25 through an air pipe.
The outlet of the air dissolving pump 25 is also communicated with the mud discharging main pipe 22 through a back flushing pipe 27, and a back flushing valve 28 is arranged on the back flushing pipe 27.
An oil and slag scraping machine 29 is arranged above the inclined plate 20 of the inclined plate oil separation settling zone 4 and at the top of the air floatation separation zone 5, a sludge collecting groove 30 with an upward opening is arranged at the upper part of the third guide wall 15 close to one side of the air floatation separation zone 5, the top end of the sludge collecting groove 30 is higher than that of the second guide wall 14, and the sludge collecting groove 30 penetrates through the box body 1 and is communicated with the outside of the box body 1.
A water collecting tank 26 is provided at an upper portion of the clean water zone 6, and the water collecting tank 26 communicates with the outside of the tank 1.
The working process is as follows:
the method comprises the steps that oil and gas field wastewater firstly enters a mechanical mixing area 2 from the bottom of a cylindrical mixing cylinder 7 through a raw water inlet pipe 19, then polyferric sulfate, anionic PAM and a demulsifier are respectively added into the mixing cylinder 7 through a coagulant dosing pipe 16, a demulsifier dosing pipe 17 and a flocculant dosing pipe 18, the agents and the oil and gas field wastewater are fully mixed through a stirrer 8 arranged in the center of the mixing cylinder 7, destabilization and coagulation of petroleum substances, colloidal substances and macromolecular organic matters are realized, after reaction is carried out for 2-3 min, the wastewater enters a hydraulic flocculation area 3 from the top of the mixing cylinder 7 in a submerged outflow mode to carry out coagulation and demulsification reaction, the reaction time is 15-20 min, and suspended matters and petroleum substances in raw water can react with the agents to generate large floc particles and floating oil. The hydraulic flocculation area 3 comprises an inner annular cylinder 9 and an outer annular cylinder 10 which are coaxially arranged with the mixing cylinder 7, and the small-aperture partition plate 11 and the large-aperture partition plate 12 are arranged to enable the water flow to form a velocity gradient, so that the flocculation effect is enhanced.
After overflowing from the top end of the outer annular cylinder 10, water passes through a channel formed between the bottom of the first guide wall 13 and the box body 1, enters the inclined plate oil separation settling zone 4 and is settled; the inclined plate 20 with an included angle of 60-70 degrees with the horizontal direction is arranged in the inclined plate oil separation settling zone 4, so that the effective settling area can be increased, the interception settling speed of the settling zone is reduced, and the settling effect is enhanced. The settled sludge enters the sludge discharge pipe 21 through a sludge inlet hole on the sludge discharge pipe 21, is discharged through the sludge discharge main pipe 22 after the automatic sludge discharge valve 23 is opened, and then large-particle sludge generated by the reaction in the hydraulic flocculation zone 3 is discharged out of the device; the floating oil and the floating slag with smaller specific gravity float to the water surface above the inclined plate 20; the SS of the water discharged from the inclined plate oil separation settling zone 4 is less than 300mg/L, and the SS of petroleum substances is less than 40 mg/L. In this embodiment, the liquid level load of the inclined plate oil separation settling zone 4 is 5.5m3/m2H, residence time greater than 1 h.
The bottom of the air floatation separation zone 5 is provided with a pressurized dissolved air water release pipe 24, the raw water of the dissolved air water adopts clear water of a clear water zone 6, the raw water is pressurized by an air dissolving pump 25 and then is mixed with air sent by an air compressor, the air is dissolved in the water and then flows back to the dissolved air water release pipe 24, the reflux ratio of the dissolved air water is 40 percent, and the dissolved air pressure is 0.45 Mpa. The produced water in the inclined plate oil separation settling zone 4 enters the air floatation separation zone 5 to stay for 20min, and after being mixed with pressurized dissolved air backflow water, the produced water enables the micro particles and fine oil droplets which are not removed by sedimentation in the inclined plate oil separation settling zone 4 to float to the surface of the air floatation separation zone 5 through the release of bubbles in the dissolved air water. Through the oil and slag scraping machine 29, floating oil and floating slag are scraped to the sludge collecting groove 30 through the oil and slag scraping machine 29 and then discharged out of the device, the advancing speed of the oil and slag scraping machine 29 is 3m/min, the effluent SS of the air floatation separation zone 5 can be ensured to be less than 20mg/L, the turbidity of petroleum substances is less than 10mg/L and less than 20NTU, the chromaticity is less than 200, the water inlet requirement of a conventional filtering system is met, and the water can be recycled after subsequent further treatment.
The air flotation separation area 5 is communicated with the clear water area 6 through a channel formed between the third guide wall 15 and the bottom of the box body 1, and the produced water of the air flotation separation area 5 enters the clear water area 6 and then is discharged out of the device through the water collecting tank 26.
The mud discharging main pipe 22 is also communicated with a liquid outlet of the dissolved air pump 25 through a back flushing pipe 27, and can be used for reversely cleaning the mud accumulated at the bottom of the inclined plate 20.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An integrated device for pretreating oil and gas field wastewater is characterized by comprising a mechanical mixing area and a hydraulic flocculation area which are integrated in the middle of a box body, wherein a mixing cylinder body of the mechanical mixing area is coaxially arranged with an outer annular cylinder and an inner annular cylinder of the hydraulic flocculation area; an inclined plate oil separation settling zone, an air flotation separation zone and a clear water zone are respectively and sequentially integrated in the box body on two sides of the hydraulic flocculation zone in the length direction of the box body;
the mechanical mixing area is separated from the hydraulic flocculation area through a mixing cylinder, the hydraulic flocculation area is separated from the inclined plate oil separation and precipitation area through a first guide wall, the inclined plate oil separation and precipitation area is separated from the air floatation separation area through a second guide wall, and the air floatation separation area is separated from the clear water area through a third guide wall;
and the top of the mechanical mixing area is communicated with the top of the hydraulic flocculation area, the bottom of the hydraulic flocculation area is communicated with the bottom of the inclined plate oil separation settling area, the top of the inclined plate oil separation settling area is communicated with the top of the air floatation separation area, and the bottom of the air floatation separation area is communicated with the bottom of the clear water area.
2. The integrated device for wastewater pretreatment in oil and gas fields as claimed in claim 1, wherein a stirrer is arranged in the mixing cylinder, and the outlet end of the coagulant dosing pipe, the outlet end of the demulsifier dosing pipe and the outlet end of the raw water inlet pipe all penetrate through the box body and the mixing cylinder and are arranged in the mixing cylinder below the blades of the stirrer; the flocculant dosing pipe is arranged in the mixing cylinder above the blades of the stirrer, and the outlet end of the flocculant dosing pipe penetrates through the box body and the mixing cylinder.
3. The oil and gas field wastewater pretreatment integrated device according to claim 1, wherein an inner annular cylinder is arranged between the mixing cylinder body and the outer annular cylinder, a gap is left between the bottom end of the inner annular cylinder and the bottom of the box body, and the bottom end of the outer annular cylinder is hermetically and fixedly connected with the bottom of the box body;
multiple layers of horizontally arranged annular small-aperture partition plates are arranged between the inner annular cylinder and the mixing cylinder body from top to bottom, and multiple layers of horizontally arranged annular large-aperture partition plates are arranged between the outer annular cylinder and the inner annular cylinder from top to bottom;
the small-aperture partition plate and the large-aperture partition plate are both provided with a plurality of through holes, and the aperture of the through hole on the small-aperture partition plate is smaller than that of the through hole on the large-aperture partition plate.
4. The integrated device for pretreating oil and gas field wastewater according to claim 1, wherein a first guide wall is arranged between the outer annular cylinder and the second guide wall, a plurality of inclined plates which are arranged in parallel are arranged between the first guide wall and the second guide wall, the vertical distance between every two adjacent inclined plates is 80-200 mm, and the included angle between each inclined plate and the horizontal direction is 60-70 degrees.
5. The integrated device for oil and gas field wastewater pretreatment according to claim 4, wherein a plurality of horizontally arranged sludge discharge pipes are arranged at the bottom of the box body between the outer annular cylinder and the second guide wall, a plurality of sludge inlet holes are uniformly formed in each sludge discharge pipe, one end of each sludge discharge pipe is of a closed structure, the other end of each sludge discharge pipe penetrates through the box body and is communicated with a sludge discharge header pipe arranged outside the box body, and a sludge discharge valve is arranged at a sludge outlet end of each sludge discharge header pipe.
6. The integrated device for wastewater pretreatment in oil and gas fields as claimed in claim 5, wherein the bottom of the gas floatation separation zone is provided with a plurality of horizontally arranged dissolved gas water release pipes, the dissolved gas water release pipes are evenly provided with a plurality of dissolved gas water outlet holes, one end of the dissolved gas water release pipe is of a closed structure, and the other end of the dissolved gas water release pipe penetrates through the box and is arranged in the liquid outlet of the dissolved gas pump outside the box.
7. The integrated device for wastewater pretreatment in oil and gas fields as claimed in claim 6, wherein the water inlet of the dissolved air pump is communicated with the clean water area through a pipeline, and the air outlet of the air compressor is communicated with the air inlet of the dissolved air pump through an air pipe.
8. The integrated device for pretreating oil and gas field wastewater according to claim 6, wherein a liquid outlet of the gas dissolving pump is further communicated with the mud discharge header pipe through a back flushing pipe, and a back flushing valve is arranged on the back flushing pipe.
9. The integrated device for wastewater pretreatment in oil and gas fields as claimed in claim 1, wherein an oil scraping and slag scraping machine is arranged above the inclined plate of the inclined plate oil separation settling zone and at the top of the air floatation separation zone, a sludge collecting groove with an upward opening is arranged at the upper part of the third guide wall close to one side of the air floatation separation zone, the top end of the sludge collecting groove is higher than the top end of the second guide wall, and the sludge collecting groove penetrates through the box body and is communicated with the outside of the box body.
10. The integrated device for pretreating oil and gas field wastewater according to claim 1, wherein a water collecting tank is arranged at the upper part of the clean water area, and the water collecting tank is communicated with the outside of the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122563632.7U CN216191584U (en) | 2021-10-22 | 2021-10-22 | Oil gas field wastewater pretreatment integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122563632.7U CN216191584U (en) | 2021-10-22 | 2021-10-22 | Oil gas field wastewater pretreatment integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216191584U true CN216191584U (en) | 2022-04-05 |
Family
ID=80888333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122563632.7U Active CN216191584U (en) | 2021-10-22 | 2021-10-22 | Oil gas field wastewater pretreatment integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216191584U (en) |
-
2021
- 2021-10-22 CN CN202122563632.7U patent/CN216191584U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2767093C (en) | Method and apparatus for treating well flow-back and produced water or other wastewater | |
| CN104355478A (en) | Printing and dyeing sewage treatment system | |
| CN103922506B (en) | Integrated complete equipment for water quality purification treatment | |
| CN108328786B (en) | Water treatment device and water treatment method | |
| CN104016520B (en) | Device for pre-treating coal chemical industry wastewater by air flotation coupled with coagulation and method for pre-treating coal chemical industry wastewater by device | |
| KR101261839B1 (en) | Treatment system for side stream | |
| CN204198556U (en) | A kind of dyeing and printing sewage treatment system | |
| CN112551765A (en) | River water purification treatment system and process | |
| CN104773880A (en) | Sewage treatment technology and equipment for well drilling | |
| CN219072151U (en) | Integrated pretreatment system for steel wastewater | |
| CN108640334B (en) | Three-section efficient composite treatment system and treatment process for oily sewage | |
| CN202379771U (en) | Shallow layer multi-point air-float polymer-containing sewage treatment device | |
| CN216191584U (en) | Oil gas field wastewater pretreatment integrated device | |
| CN106630249A (en) | Automatic tunnel wastewater treatment system | |
| CN214299615U (en) | River water purification treatment system | |
| CN116903106A (en) | Clarifying system and method for low-temperature and low-turbid water | |
| CN115140863A (en) | Oil gas field wastewater pretreatment integrated device | |
| CN211595130U (en) | Variable-speed upflow expansion type coagulation reaction and central water distribution integrated precipitation device | |
| CN112194316A (en) | Integrated treatment system and treatment method for oily tunnel wastewater | |
| CN205023996U (en) | Oil -containing sewage treatment system | |
| CN201370981Y (en) | Seawater clarification pool with turbulent flow structure | |
| CN110550814A (en) | technology for treating fracturing flowback fluid of oil and gas field through multi-metal catalytic oxidation | |
| CN215026278U (en) | Comprehensive mud discharging pool for tap water plant | |
| CN203392949U (en) | Continuous treatment device for petroleum drilling sewage | |
| CN205398188U (en) | Heavily assist flocculation clarification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |