CN208279429U - A kind of pressure floatation air formula sewage-treatment plant - Google Patents
A kind of pressure floatation air formula sewage-treatment plant Download PDFInfo
- Publication number
- CN208279429U CN208279429U CN201820581213.1U CN201820581213U CN208279429U CN 208279429 U CN208279429 U CN 208279429U CN 201820581213 U CN201820581213 U CN 201820581213U CN 208279429 U CN208279429 U CN 208279429U
- Authority
- CN
- China
- Prior art keywords
- tank
- water
- compound filter
- filter tank
- flotation
- 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
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model belongs to technical field of sewage, disclose a kind of pressure floatation air formula sewage-treatment plant, including coagulation reaction device, dissolved air flotation device, filter reflux unit and water tank, dissolved air flotation device includes the flotation tank for being sequentially connected setting, sedimentation basin, overflow weir and intermediate water tank, flow apron is provided in flotation tank, flotation tank is separated into contact chamber and separation chamber by flow apron, contact chamber connects coagulation reaction device, the lower part of contact chamber is provided with dissolved air release, the outlet of dissolved air release connection dissolving, the side of dissolving is connected with air compressor machine, filtering reflux unit includes compound filter tank and reflux pump, the water inlet of compound filter tank connects intermediate water tank, the water outlet of compound filter tank connects water tank, compound filter tank is provided with bypass outlet, the water inlet of reflux pump connects bypass outlet, the water outlet of reflux pump Connect the water inlet of dissolving.Through the device, treated that water quality is good, and the device not will cause the blocking of pipeline.
Description
Technical field
The utility model belongs to technical field of sewage, and in particular to a kind of pressure floatation air formula sewage-treatment plant.
Background technique
Dissolved air flotation, also known as bubble adsorbing separation are to be passed through a large amount of, high degree of dispersion micro air bubble in water, utilize
It mutually sticks to form floating body of the density less than water and float as the substances such as carrier and oil droplet, suspended matter, colloid in sewage
To the water surface, to achieve the purpose that purify sewage.In all kinds of air flotation technologies, Pressurized dissolved gas flotation device because of its technology maturation,
Purification efficiency is high, is most widely used in water treatment field, is domestic and international most common air flotation technology.
There are three alternative basic procedures for method of pressed dissolved-air release: complete molten air-flow journey, the molten air-flow journey in part and reflux
Pressure air-dissolving process.Modern air bearing theory thinks that partial reflux pressurized dissolved air flotation can make full use of flotation (coagulation) agent, saves
The energy, treatment effect are better than full pressurized dissolved air flotation process, are the air-float technologies being commonly used both at home and abroad at present.Reflux pressurization is molten
Gas air bearing refers to that under certain pressure effect, water reflux is pressurizeed by partially treated, and air is made to be dissolved in the water and reach
Then saturation state releases the excess air for being dissolved in water in the form of microbubble, by bubble suddenly by pressure reduction again
Buoyancy the solia particle adhered to the surface thereof is taken to the water surface, to achieve the purpose that be separated from water.The gas that this method generates
It is small (less than 80 μm) to steep partial size, epigranular floats and stablizes, sewage is disturbed it is smaller, suitable for loose wadding grain, fine particles
It is separated by solid-liquid separation, is widely used in the processing of each industrial circle sewage.
The pressurized dissolved air flotation technical application that flows back is extensive, but domestic shortage design specification, acceptance criteria and operation rule at present
Journey, each Environmental Engineering Design unit and device manufacturer mainly design according to engineering experience, due to grasping to air flotation technology technique
Depth, angle it is different, there are many deviations, some problems is produced in operational management, cause treatment effeciency in design work
The low, consequences such as application conditions are unreasonable.
Currently, reflux Pressurized dissolved gas flotation device largely uses Slag Scraping Device to be not easy completely to clean out the impurity of floating
It goes, recirculation water easily causes the blocking of reflux line and dissolving, generates unnecessary maintenance cost.
Utility model content
In order to solve the above problems existing in the present technology, the utility model aim is to provide a kind of pressure floatation air formula dirt
Water treatment facilities.
The technology employed by the present utility model is
A kind of pressure floatation air formula sewage-treatment plant, including coagulation reaction device, dissolved air flotation device, filtering reflux unit
And water tank, the dissolved air flotation device include the flotation tank for being sequentially connected setting, sedimentation basin, overflow weir and intermediate water tank,
Flow apron is provided in flotation tank, flotation tank is separated into contact chamber and separation chamber by flow apron, and it is anti-that contact chamber connects coagulation
Device is answered, the lower part of contact chamber is provided with dissolved air release, and dissolved air release connects the outlet of dissolving, and the side of dissolving connects
It is connected to air compressor machine, the filtering reflux unit includes compound filter tank and reflux pump, in the water inlet connection of the compound filter tank
Between water tank, the water outlet of compound filter tank connects water tank, and the compound filter tank is provided with bypass outlet, and the water inlet of reflux pump connects
Take back outflux, the water inlet of the water outlet connection dissolving of reflux pump.
Preferably, back purge system is provided on the compound filter tank, the back purge system includes blower, backwash
The lower section of compound filter tank filter layer, backwash outlet pipe setting is arranged in water inlet pipe and backwash outlet pipe, backwash water inlet pipe
In the top of compound filter tank filter layer, the lower section of compound filter tank is arranged in blower.
Preferably, the described coagulation reaction device setting is provided with stirring in the coagulation area there are three coagulation area
Device.
The stirring rate in three coagulation areas is different, is followed successively by quick stirring area, moderate-speed mixer area and at a slow speed from water (flow) direction
Stirring area.
Preferably, chemicals dosing plant is provided with above the coagulation reaction device.
Preferably, the sedimentation basin is multifeed clarifier, is divided into sequentially connected No. 1 sedimentation basin, No. 2 sedimentation basins and 3
Number sedimentation basin.
Preferably, the dissolved air release is micro-nano bubble release.
Preferably, pressure gauge is provided on the dissolving.
The utility model has the following beneficial effects:
1, sedimentation basin setting so that coagulation generate floccule obtain adequately precipitate removal, flow back into the water of dissolving
By the filtering of compound filter tank, the floccule in recirculation water is further reduced.
2, back purge system is set on compound filter tank and has further ensured filter effect.
3, the setting in three coagulation areas has ensured sufficiently reacting for sewage and coagulant, good sewage processing effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model pressure floatation air formula sewage-treatment plant.
In figure: 1- flotation tank；2- dissolving；The compound filter tank of 3-；4- water tank；5- dissolved air release；6-1 sedimentation basin；
7-2 sedimentation basin；8-3 sedimentation basin；9- overflow weir；10- intermediate water tank；11- flow apron；12- contact chamber；The separation chamber 13-；
14- air compressor machine；15- reflux pump；16- blower；17- backwashes water inlet pipe；18- backwashes outlet pipe；19- blender；20- is quick
Stirring area；21- moderate-speed mixer area；22- mixes slowly area；23- chemicals dosing plant；24- filter layer；25- sewage inlet.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further elaborated the utility model.
As shown in Figure 1, a kind of pressure floatation air formula sewage-treatment plant of the present embodiment, including coagulation reaction device, molten gas
Air-floating apparatus, filtering reflux unit and water tank 4.
Coagulation reaction device setting is provided with blender 19 in coagulation area there are three coagulation area.
The stirring rate in three coagulation areas is different, is divided into along the sequentially connected quick stirring area 20 of water (flow) direction, middling speed
Stirring area 21 and mix slowly area 22.Sewage inlet 25 is provided on quick stirring area 20, quick 20 top of stirring area is also set
It is equipped with chemicals dosing plant 23, sewage successively by quick stirring area 20, moderate-speed mixer area 21 and mixes slowly area 22, such setting
It can make the flocculent structure consolidation generated after coagulation and be easy to float, improve dissolved air flotation efficiency, improve effluent quality.
Dissolved air flotation device includes the flotation tank 1 for being sequentially connected setting, sedimentation basin, overflow weir 9 and intermediate water tank 10, air bearing
Flow apron 11 is provided in pond 1, flotation tank 1 is separated into contact chamber 12 and separation chamber 13 by flow apron 11, and contact chamber 12 connects
Coagulation reaction device is connect, the lower part of contact chamber 12 is provided with dissolved air release 5, and dissolved air release 5 connects the outlet of dissolving 2,
The side of dissolving 2 is connected with air compressor machine 14, is additionally provided with pressure gauge on dissolving 2.
Dissolved air release 5 is micro-nano bubble release, improves the generation effect of bubble.
Filtering reflux unit includes compound filter tank 3 and reflux pump 15, and the water inlet of compound filter tank 3 connects intermediate water tank 10,
The water outlet of compound filter tank 3 connects water tank 4, and compound filter tank 3 is provided with bypass outlet, and the water inlet of reflux pump 15 connects reflux
Outlet, the water inlet of the water outlet connection dissolving 2 of reflux pump 15.
Back purge system is provided on compound filter tank 3, back purge system includes blower 16, backwash water inlet pipe 17 and recoil
Water pipe 18 is washed out, the lower section of compound 3 filter layer 24 of filter tank is arranged in backwash water inlet pipe 17, and the backwash setting of outlet pipe 18 is multiple
The top of 3 filter layer 24 of filter tank is closed, the lower section of compound filter tank 3 is arranged in blower 16.
Sedimentation basin is multifeed clarifier, is divided into 6, No. 2 sedimentation basin 7 and No. 3 sedimentation basins 8 of sequentially connected No. 1 sedimentation basin.It is more
Grade sedimentation basin may make the floccule gone out through air bearing adequately to be precipitated.
The course of work of the pressure floatation air formula sewage-treatment plant: sewage enters quick stirring area 20, and from chemicals dosing plant
23 coagulant being added and after flocculation aid is sufficiently mixed reaction, turn on agitator 19, sewage successively pass through quick stirring area 20, in
Fast stirring area 21 and mix slowly area 22, contact chamber 12 entered after mixing slowly area 22 and staying for some time, then with pass through
Dissolved air release 5 enters the reflux dissolved air water of contact chamber 12 and its microbubble of release is sufficiently mixed, the wadding body attachment in sewage
Air float body is formed on minute bubbles, which is gradually increasing in contact chamber 12 enters multifeed clarifier by separation chamber 13
Interior, by the precipitating in multifeed clarifier, after floccule precipitating is abundant, water flows through overflow weir 9 and enters intermediate water tank 10, intermediate
Water in water tank 10 enters in compound filter tank 3, enters in water tank 4 by filtered water a part, another part passes through back
Stream pump 15, which enters in dissolving 2, to be recycled.
When the device does not work, the back purge system that can be opened on compound filter tank 3 backwashes compound filter tank 3,
Ensure filter effect；The blower 16 being arranged in below compound filter tank 3, after wind recoils, compound filter tank 3 are first opened when backwash
Filter layer 24 is in loosening state, and using the flushing of backwashing water, the impurity of some remnants is washed out.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted
The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.
Claims (7)
1. a kind of pressure floatation air formula sewage-treatment plant, it is characterised in that: including coagulation reaction device, dissolved air flotation device, mistake
Reflux unit and water tank (4) are filtered, the dissolved air flotation device includes the flotation tank (1) for being sequentially connected setting, sedimentation basin, overflows
Weir (9) and intermediate water tank (10) are flowed, is provided with flow apron (11) in flotation tank (1), flow apron (11) divides flotation tank (1)
It is divided into contact chamber (12) and separation chamber (13), contact chamber (12) connects coagulation reaction device, and the lower part of contact chamber (12) is provided with
Dissolved air release (5), dissolved air release (5) connect the outlet of dissolving (2), and the side of dissolving (2) is connected with air compressor machine
(14), the filtering reflux unit includes compound filter tank (3) and reflux pump (15), and the water inlet of the compound filter tank (3) connects
It connects intermediate water tank (10), the water outlet of compound filter tank (3) connects water tank (4), and the compound filter tank (3), which is provided with, to be flowed back out
Mouthful, the water inlet of reflux pump (15) connects bypass outlet, the water inlet of water outlet connection dissolving (2) of reflux pump (15).
2. a kind of pressure floatation air formula sewage-treatment plant according to claim 1, it is characterised in that: the compound filter tank
(3) back purge system is provided on, the back purge system includes that blower (16), backwash water inlet pipe (17) and recoil wash out
Water pipe (18), backwash water inlet pipe (17) setting backwash outlet pipe (18) and set in the lower section of compound filter tank (3) filter layer (24)
It sets in the top of compound filter tank (3) filter layer (24), blower (16) is arranged in the lower section of compound filter tank (3).
3. a kind of pressure floatation air formula sewage-treatment plant according to claim 1, it is characterised in that: the coagulating
Device setting is provided with blender (19) in the coagulation area there are three coagulation area.
4. a kind of pressure floatation air formula sewage-treatment plant according to claim 1, it is characterised in that: the coagulating
Chemicals dosing plant (23) are provided with above device.
5. a kind of pressure floatation air formula sewage-treatment plant according to claim 1, it is characterised in that: the sedimentation basin is
Multifeed clarifier is divided into sequentially connected No. 1 sedimentation basin (6), No. 2 sedimentation basins (7) and No. 3 precipitatings (8).
6. a kind of pressure floatation air formula sewage-treatment plant according to claim 1, it is characterised in that: the molten gas release
Device (5) is micro-nano bubble release.
7. a kind of pressure floatation air formula sewage-treatment plant according to claim 1, it is characterised in that: the dissolving
(2) pressure gauge is provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820581213.1U CN208279429U (en) | 2018-04-23 | 2018-04-23 | A kind of pressure floatation air formula sewage-treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820581213.1U CN208279429U (en) | 2018-04-23 | 2018-04-23 | A kind of pressure floatation air formula sewage-treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208279429U true CN208279429U (en) | 2018-12-25 |
Family
ID=64751993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820581213.1U Active CN208279429U (en) | 2018-04-23 | 2018-04-23 | A kind of pressure floatation air formula sewage-treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208279429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420545A (en) * | 2019-08-27 | 2019-11-08 | 孙灯成 | A kind of exhaust gas wastewater treatment equipment |
-
2018
- 2018-04-23 CN CN201820581213.1U patent/CN208279429U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420545A (en) * | 2019-08-27 | 2019-11-08 | 孙灯成 | A kind of exhaust gas wastewater treatment equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130062272A1 (en) | Device for Purifying Oily Wastewater | |
| CN203959951U (en) | A kind of printing-ink wastewater treatment and recovery system | |
| CN103523968B (en) | Integrated water purification device | |
| CN204185333U (en) | Integration advanced treatment system | |
| CN101423262B (en) | Air-floated water treating apparatus | |
| CN102107968A (en) | Water purification system and water purification method of flotation filter tank | |
| CN208279429U (en) | A kind of pressure floatation air formula sewage-treatment plant | |
| CN103896431A (en) | Water treatment method combining coagulation-precipitation-re-flocculation-ultrafiltration | |
| CN205367946U (en) | Air supporting filtering device | |
| CN204384990U (en) | A kind of recirculated cooling water lime soften for sewage clarification filtration treatment system | |
| CN205115091U (en) | Air supporting method treatment facility that industrial waste gas administered | |
| CN207645963U (en) | A kind of integrating device of improved efficient sedimentation tank and sand filter | |
| CN206417937U (en) | A kind of Water warfare pre-processing device | |
| CN202898140U (en) | System for recycling oil-containing washing waste water | |
| CN201999778U (en) | Single-layer pressure integration oil eliminator | |
| CN108947014A (en) | Nanometer air bearing inclined tube or sloping plate deposition integral pool after a kind of coagulation | |
| CN209853875U (en) | Integrated water purifying device | |
| CN211620172U (en) | High-density air flotation sedimentation tank | |
| CN209178128U (en) | A kind of flat flow dissolved gas floatator | |
| CN203558932U (en) | Integrated water purifying equipment | |
| CN102874965B (en) | System for recycling waste water containing oil and washing water | |
| CN207243604U (en) | The processing equipment of black and odorous water and the processing system of black and odorous water | |
| CN106861257A (en) | Continuous raw streaming active sand filtration treatment device and filter method | |
| CN112759116A (en) | Contain FEP waste water recovery processing system | |
| KR101045878B1 (en) | High-efficiency hybrid sedimentation basin for processing water elevation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |