CN106219653A - Vertical-flow multi stage flotation column - Google Patents
Vertical-flow multi stage flotation column Download PDFInfo
- Publication number
- CN106219653A CN106219653A CN201610776333.2A CN201610776333A CN106219653A CN 106219653 A CN106219653 A CN 106219653A CN 201610776333 A CN201610776333 A CN 201610776333A CN 106219653 A CN106219653 A CN 106219653A
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- China
- Prior art keywords
- air
- outlet
- sewage
- air supporting
- grade
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/301—Detergents, surfactants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention belongs to vertical-flow multi stage flotation column；It is provided with sewage inlet, molten gas import, scum silica frost outlet, air vent, outlet and sewage draining exit on every grade of air supporting tower body, in every grade of air supporting tower, is provided with dissolved air floatation pipe, dissolved air release and mozzle；Dividing plate it is provided with between every grade；Air vent is arranged on every grade of pneumatically supported the top；Scum silica frost outlet is arranged on the lower end of air vent；Sewage inlet is arranged on the lower end of scum silica frost outlet；Sewage outfalls setting in dividing plate upper end, molten gas import lower end；Air supporting tower Inner guide pipe one end is connected with outlet, and the other end is arranged on below dissolved air floatation pipe；Molten gas import connects dissolved air release, and dissolved air release is provided with dissolved air floatation pipe；Between upper level air supporting sewage draining exit is connected with next stage air supporting air vent.Disposal ability of the present invention is big, efficiency is high, occupation of land is few.Internal structure is simple, safeguards and overhauls easily.Can preferably eliminate sludge bulking and reduce the SS and the SS that can sink that can float.
Description
Technical field
The invention belongs to technical field of sewage, be specifically related to a kind of for oil-containing, containing the process of float wastewater efficient
Vertical-flow multi stage flotation column.
Background technology
In recent years, air supporting is widely used in sewage disposal, and the especially application in oil-polluted water field is the most extensive.
Air supporting is the wadding grain that a kind of micro-bubble utilizing high degree of dispersion goes for carrier to stick in water, relies on the buoyance lift of bubble
Effect so that it is buoyancy is more than gravity and floating resistance, thus realizes the mandatory floating of grain of wadding a quilt with cotton, and reaches a kind of skill that solid, liquid separates
Art, can be divided into dispersion air supporting method, dissolved air flotation and electrolytic gas float glass process etc., at present in oil-containing, suspended matter-containing wastewater process often
For pressurized dissolved air flotation.
The principle of air-dissolving air-float is under an increased pressure, makes air soluble in water, forms air hypersaturated state, then subtracts
To normal pressure, make air separate out, formed a large amount of to close microbubble group, and make float and colloid micro-in slow uphill process
Grain, is enriched with at bubble surface, and floats on the surface of the water with bubble, thus reaches to remove the purpose of SS and CODcr, it is achieved air supporting.Pressurization
The main body of air-dissolving air-float can be divided into air-dissolving apparatus and gas floatation separation device, is usually used in there is air supporting as gas floatation separation device at present
Pond and air flotation tank two class.Traditional flotation tank and air flotation tank, due to structure and design problem, be usually present floor space big, molten
The problems such as gas release easily blocks, daf efficiency is low, equipment is complicated.
Summary of the invention
It is an object of the invention to provide a kind of Novel vertical streaming multi stage flotation column, overcome the deficiencies in the prior art.
Technical scheme is as follows:
It is an object of the invention to provide a kind of Novel vertical streaming multi stage flotation column, overcome the deficiencies in the prior art.
Technical scheme is as follows:
A kind of vertical-flow multi stage flotation column, every grade of air supporting tower body is provided with sewage inlet, molten gas import, scum silica frost row
Outlet, air vent, outlet and sewage draining exit, be provided with dissolved air floatation pipe, dissolved air release and mozzle in every grade of air supporting tower；Often
Dividing plate it is provided with between Ji；Air vent is arranged on every grade of pneumatically supported the top；Scum silica frost outlet is arranged on the lower end of air vent；Dirty
Water water inlet is arranged on the lower end of scum silica frost outlet；Sewage outfalls setting in dividing plate upper end, molten gas import lower end；Air supporting tower Inner guide
Pipe one end is connected with outlet, and the other end is arranged on below dissolved air floatation pipe；Molten gas import connects dissolved air release, and molten gas discharges
Dissolved air floatation pipe it is provided with on device；Between upper level air supporting sewage draining exit is connected with next stage air supporting air vent.
Described dividing plate is tilting, and angle of inclination is 5～10 °.It is arranged on upper level air supporting sewage draining exit and next stage air supporting
Between air vent, and less than upper level air supporting sewage draining exit, higher than next stage air vent.
Described refluxing opening is arranged on afterbody air supporting sewage outlet lower end, distance 100～150mm.
Described air vent is arranged on every grade of pneumatically supported the top or is arranged on every grade of air supporting space bar lower end 50～100mm
Place.
Described scum silica frost outlet is arranged on the lower end of air vent, with the spacing 50～150mm of air vent.
Described sewage mouth is arranged on the lower end of scum silica frost outlet, with the spacing 100～200mm of scum silica frost outlet.
Described sewage outlet is arranged between wastewater inlet and scum silica frost outlet 1/2；Afterbody outlet of sewer
It is arranged on bottom tower body end-to-end distance tower body at 300mm.
Described sewage outfalls setting is every grade of pneumatically supported bottom or at dividing plate 20～100mm.
Described molten gas import is arranged at dividing plate 200～500mm.
Wherein afterbody air supporting arranges refluxing opening and liquidometer, is not provided with mozzle.
When the present invention works, floccule body float to the surface under the effect of lift of gas forms scum silica frost, subsequently into air flotation zone.Wadding
Solidifying body float to the surface under the effect of lift of gas forms scum silica frost, and the clear water of lower floor passes through water outlet mozzle, enters next stage air supporting,
After scum silica frost on the flotation tank water surface accumulates to certain thickness, discharged by scum silica frost mouth, the SS that can sink at tower body bottom precipitation,
Periodically get rid of.
The invention have the advantage that vertical-flow multi stage flotation column combines flotation tank and the multiple spy being used in series of air flotation tank
Point, disposal ability is big, efficiency is high, occupation of land is few.Internal structure is simple, safeguards and overhauls easily.Can preferably eliminate sludge bulking
And reduce the SS and the SS that can sink that can float.Surfactant in removal water and stink are had substantially by the air separated out during air supporting
Effect, add the dissolved oxygen in water simultaneously, reduce part insolubility COD, provide advantage for subsequent treatment.
Dividing plate between every grade of air supporting uses tilting dividing plate, the most sedimentary discharge.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is that embodiments of the invention are intended to；
Wherein: 1. sewage running piping, 2. one-level air supporting water inlet, 3. one-level air supporting water outlet mozzle, 4. one-level air supporting
Outlet, 5. one-level air supporting outlet and two grades of water inlet connecting tubes, 6. one-level pneumatically supported molten gas import, 7. one-level dissolved air floatation
Pipe, 8. one-level air suspension dissolved air releaser, 9. one-level air-flotation scum outlet, 10. one-level air supporting sewage draining exit, 11. one-level air supporting rows
QI KOU, 12. secondary air-floatation water inlets, 13. secondary air-floatation water outlet mozzles, 14. secondary air-floatation outlets, 15. secondary air-floatations go out
The mouth of a river and three grades of water inlet connecting tubes, the molten gas import of 16. secondary air-floatations, 17. secondary air-floatation Gas dissolving pipes, 18. secondary air-floatations are molten
Gas release, 19. secondary air-floatation scum silica frost outlets, 20. secondary air-floatation sewage draining exits, 21. secondary air-floatation air vents, 22. 3 grades of gas
Floating water inlet, 23. 3 grades of air supporting outlets, 24. water drainage pipelines, 25. refluxing openings, 26. 3 grades of pneumatically supported molten gas imports, 27.
Three grades of dissolved air floatation pipes, 28. 3 grades of air suspension dissolved air releasers, 29. 3 grades of air-flotation scum outlets, 30. 3 grades of air supporting sewage draining exits,
31. 3 grades of air supporting air vents, 32. liquidometers, 33/34. air supporting space bar, 34. air supporting tower tower bodies；N with n+1 represents pneumatically supported.
Detailed description of the invention
Below in conjunction with accompanying drawing 2 and embodiment, the present invention is described in further details (as a example by three grades of air supporting towers).
As in figure 2 it is shown, arrange one-level air supporting water inlet 2, one-level air supporting water outlet mozzle 3, one-level air supporting water outlet on tower body
Mouth 4, one-level air supporting outlet and two grades of water inlet connecting tubes 5, the pneumatically supported molten gas import 6 of one-level, one-level dissolved air floatation pipes 7,
Level air suspension dissolved air releaser 8, one-level air-flotation scum outlet 9, one-level air supporting sewage draining exit 10, one-level air supporting air vent 11, two grades
Air supporting water inlet 12, secondary air-floatation water outlet mozzle 13, secondary air-floatation outlet 14, secondary air-floatation outlet and three grades of water inlets
Connecting tube 15, the molten gas import 16 of secondary air-floatation, secondary air-floatation Gas dissolving pipe 17, secondary air-floatation dissolved air release 18, secondary air-floatation
Scum silica frost outlet 19, secondary air-floatation sewage draining exit 20,22, the three grades of air supporting water outlets of 21, three grades of air supporting water inlets of secondary air-floatation air vent
Mouth 23, water drainage pipeline 24,2 refluxing opening 5, three grades pneumatically supported molten gas import 27, three grades of dissolved air floatations of 26, three grades of dissolved air floatation pipes
28, three grades of air-flotation scum outlets of release 29, three grades of air supporting sewage draining exits 30, three grades of air supporting air vents 31, liquidometer 32, air supportings
Space bar 33.
Being provided with dividing plate between every grade, dividing plate is tilting, and angle of inclination is 5～10 °；Air vent is arranged on every grade of air supporting
The top or be arranged at every grade of air supporting space bar lower end 50～100mm, wherein one-level air supporting air vent is arranged on tower body top
End；Scum silica frost outlet is arranged on the lower end of air vent, with the spacing 50～150mm of air vent；Sewage inlet is arranged on scum silica frost
The lower end of outlet, with the spacing 100～200mm of scum silica frost outlet；Sewage outlet is arranged on wastewater inlet and discharges with scum silica frost
At between Kou 1/2；Afterbody outlet of sewer is arranged on bottom tower body end-to-end distance tower body at 300mm, sewage outfalls setting every
Plate upper end, at dividing plate 20～100mm；Molten gas import is arranged at dividing plate 200～500mm；Refluxing opening is arranged on last
Level air supporting sewage outlet lower end, distance 100～150mm；Air supporting tower Inner guide pipe one end is connected with outlet, and the other end is arranged
Below dissolved air floatation pipe；Molten gas import connects dissolved air release, and dissolved air release is provided with dissolved air floatation pipe；Upper level gas
Between floating sewage draining exit is connected with next stage air supporting air vent；Wherein afterbody air supporting arranges refluxing opening and liquidometer, is not provided with
Mozzle.
When the present invention works, the initial stage first fills sewage in air supporting tower, utilizes air supporting pressue device to circulate air supporting, in making tower
After the abundant air supporting of sewage, quantitatively enter sewage.
Sewage is entered the one-level air supporting section of air supporting top of tower, molten gas by sewage running piping 1 by one-level air supporting water inlet 2
Enter from the pneumatically supported molten gas import 6 of one-level, discharged a large amount of bubbles of generation by one-level air supporting pipe 7 by dissolved air release 8, on bubble
Rise after sticking with bubble with the float in sewage or oils, under buoyancy, rise to liquid layer surface, form scum layer, floating
When slag blanket does not has one-level pneumatically supported scum silica frost mouth 9, gravity flow was discharged.Sewage through one-level air supporting slagging-off passes through mozzle 3 by outlet
4 discharge, and one-level air supporting completes.
The sewage discharged by outlet 4 enters secondary air-floatation water inlet 12 by connecting tube 5, molten from secondary air-floatation of molten gas
Gas import 16 enters, and is discharged a large amount of bubbles of generation by one-level air supporting pipe 17 by dissolved air release 18, and bubble rises and in sewage
Float or after oils and bubble stick, under buoyancy, rise to liquid layer surface, form scum layer, scum layer did not had two
During level pneumatically supported scum silica frost mouth 19, gravity flow is discharged.Sewage through secondary air-floatation slagging-off is discharged by outlet 14 by mozzle 13,
Secondary air-floatation completes.
The sewage discharged by outlet 14 enters three grades of air supporting water inlets 22 by connecting tube 15, and molten gas is pneumatically supported from three grades
Molten gas import 26 enters, and is discharged a large amount of bubbles of generation by three grades of air supporting pipes 27 by dissolved air release 28, and bubble rises and sewage
In float or after oils and bubble stick, under buoyancy, rise to liquid layer surface, form scum layer, scum layer did not had
During three grades of pneumatically supported scum silica frost mouths 29, gravity flow is discharged.The most gradually clarify through three grades of pneumatically supported sewage, three grades of air supporting pipes with
Under water quality optimum, a part is supplied to molten gas pressue device by refluxing opening 25, for providing the dissolved air water of air supporting tower；One
Divide and drained into next processing unit by discharge outlet 23 by sewage pipe 24.Three grades of air supportings complete.
The gas produced during air supporting is focused on by tank top air vent 11/21/31.Tower body each several part
Bottom sediment is discharged respectively by sewage draining exit 10/20/30.
The above, be only used for illustrating the present invention, not in order to limit the present invention, in the spirit and principles in the present invention
Within, any those familiar with the art in the technical scope that the invention discloses, any amendment of being made, replacement
And improvement, all should contain within protection scope of the present invention.
Claims (10)
1. a vertical-flow multi stage flotation column, every grade of air supporting tower body is provided with sewage inlet, molten gas import, scum silica frost discharge
Mouth, air vent, outlet and sewage draining exit, be provided with dissolved air floatation pipe, dissolved air release and mozzle in every grade of air supporting tower；Every grade
Between be provided with dividing plate；Air vent is arranged on every grade of pneumatically supported the top；Scum silica frost outlet is arranged on the lower end of air vent；Sewage
Water inlet is arranged on the lower end of scum silica frost outlet；Sewage outfalls setting in dividing plate upper end, molten gas import lower end；Air supporting tower Inner guide pipe
One end is connected with outlet, and the other end is arranged on below dissolved air floatation pipe；Molten gas import connects dissolved air release, dissolved air release
On be provided with dissolved air floatation pipe；Between upper level air supporting sewage draining exit is connected with next stage air supporting air vent.
2. multi stage flotation column as claimed in claim 1, is characterized in that described dividing plate is tilting, and angle of inclination is 5～10 °；
It is arranged between upper level air supporting sewage draining exit and next stage air supporting air vent, and less than upper level air supporting sewage draining exit, under being higher than
One-level air vent.
3. multi stage flotation column as claimed in claim 1, is characterized in that described refluxing opening is arranged on afterbody air supporting sewage and goes out
Lower end, the mouth of a river, distance 100～150mm.
4. multi stage flotation column as claimed in claim 1, it is characterized in that described air vent be arranged on every grade of pneumatically supported the top or
It is arranged at every grade of air supporting space bar lower end 50～100mm.
5. multi stage flotation column as claimed in claim 1, is characterized in that described scum silica frost outlet is arranged on the lower end of air vent, with
The spacing 50～150mm of air vent.
6. multi stage flotation column as claimed in claim 1, is characterized in that described sewage mouth is arranged on the lower end of scum silica frost outlet, with
The spacing 100～200mm of scum silica frost outlet.
7. multi stage flotation column as claimed in claim 1, is characterized in that described sewage outlet is arranged on wastewater inlet and scum silica frost
At between outlet 1/2；Afterbody outlet of sewer is arranged on bottom tower body end-to-end distance tower body at 300mm.
8. multi stage flotation column as claimed in claim 1, it is characterized in that described sewage outfalls setting every grade of pneumatically supported bottom or
At dividing plate 20～100mm.
9. multi stage flotation column as claimed in claim 1, is characterized in that described molten gas import is arranged on away from dividing plate 200～500mm
Place.
10. multi stage flotation column as claimed in claim 1, is characterized in that wherein afterbody air supporting arranges refluxing opening and liquid level
Meter, is not provided with mozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776333.2A CN106219653A (en) | 2016-08-30 | 2016-08-30 | Vertical-flow multi stage flotation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776333.2A CN106219653A (en) | 2016-08-30 | 2016-08-30 | Vertical-flow multi stage flotation column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106219653A true CN106219653A (en) | 2016-12-14 |
Family
ID=58071962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610776333.2A Pending CN106219653A (en) | 2016-08-30 | 2016-08-30 | Vertical-flow multi stage flotation column |
Country Status (1)
| Country | Link |
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| CN (1) | CN106219653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162239A (en) * | 2017-06-01 | 2017-09-15 | 浙江金龙自控设备有限公司 | Eddy flow agglomerated air floatation removes oil column |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759243A (en) * | 2010-01-15 | 2010-06-30 | 江苏清溢环保设备有限公司 | Vertical-type air-flotation device |
| CN101928082A (en) * | 2010-09-16 | 2010-12-29 | 江苏新龙鼎环保成套工程有限公司 | Vertical-flow air flotation device with secondary filtering |
| CN203529970U (en) * | 2013-09-03 | 2014-04-09 | 湖南铭池环境科技有限公司 | Asymmetric streaming air flotation device |
| CN203741079U (en) * | 2014-03-21 | 2014-07-30 | 山东建筑大学 | High-efficiency vertical flow water treatment floatation tank |
| CN204918052U (en) * | 2015-08-28 | 2015-12-30 | 天津市振津石油天然气工程有限公司 | Decompression release whirl air supporting jar |
| CN206126893U (en) * | 2016-08-30 | 2017-04-26 | 天津市振津石油天然气工程有限公司 | Multistage air supporting tower of vertical flow type |
-
2016
- 2016-08-30 CN CN201610776333.2A patent/CN106219653A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759243A (en) * | 2010-01-15 | 2010-06-30 | 江苏清溢环保设备有限公司 | Vertical-type air-flotation device |
| CN101928082A (en) * | 2010-09-16 | 2010-12-29 | 江苏新龙鼎环保成套工程有限公司 | Vertical-flow air flotation device with secondary filtering |
| CN203529970U (en) * | 2013-09-03 | 2014-04-09 | 湖南铭池环境科技有限公司 | Asymmetric streaming air flotation device |
| CN203741079U (en) * | 2014-03-21 | 2014-07-30 | 山东建筑大学 | High-efficiency vertical flow water treatment floatation tank |
| CN204918052U (en) * | 2015-08-28 | 2015-12-30 | 天津市振津石油天然气工程有限公司 | Decompression release whirl air supporting jar |
| CN206126893U (en) * | 2016-08-30 | 2017-04-26 | 天津市振津石油天然气工程有限公司 | Multistage air supporting tower of vertical flow type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162239A (en) * | 2017-06-01 | 2017-09-15 | 浙江金龙自控设备有限公司 | Eddy flow agglomerated air floatation removes oil column |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161214 |
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