CN206457306U - A kind of BAF - Google Patents
A kind of BAF Download PDFInfo
- Publication number
- CN206457306U CN206457306U CN201621421321.XU CN201621421321U CN206457306U CN 206457306 U CN206457306 U CN 206457306U CN 201621421321 U CN201621421321 U CN 201621421321U CN 206457306 U CN206457306 U CN 206457306U
- Authority
- CN
- China
- Prior art keywords
- sand
- filtrate
- pond body
- sand extraction
- baf
- 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.)
- Expired - Fee Related
Links
- 239000004576 sand Substances 0.000 claims abstract description 73
- 239000000706 filtrate Substances 0.000 claims abstract description 68
- 238000000605 extraction Methods 0.000 claims abstract description 56
- 239000010865 sewage Substances 0.000 claims abstract description 31
- 238000005406 washing Methods 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000005273 aeration Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 2
- 101100041681 Takifugu rubripes sand gene Proteins 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000746 purification Methods 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000012223 aqueous fraction Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007102 metabolic function Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a kind of BAF, including pond body and setting sand extraction device in the inner, for the filtrate for being deposited on the pond body bottom to be promoted to preset height, and be connected with the sand extraction device, the sand-washing device for being cleaned during by the dropping of filtrate that it is lifted to it.BAF disclosed in the utility model, sand extraction device lifts the filtrate for being deposited on pond body bottom, cleaned after being sprayed by sand-washing device, the material that the biomembrane that will be attached on filtrate and the solid impurity that is trapped etc. may block filtrate hole is peeled off or removed so that filtrate keeps high-efficiency activated again.And the filtrate after sand-washing device is cleaned, then flowed out from the sand export of sand-washing device, be re-introduced into the foul water fraction in the middle part of pond body, biological cleaning is carried out to it.In this way, filtrate is always ensured that the high-efficient purification effect to sewage, and need not suspend filter tank operation progress backwash operation by being repeatedly circulated.
Description
Technical field
The utility model is related to technical field of sewage, more particularly to a kind of BAF.
Background technology
With the development of Chinese mechanical industry, increasing plant equipment has been used widely.
In sewage treatment industry, various sewage disposal devices have been popularized, it is common include air floatation machine, sludge dewatering equipment,
Centrifuge, aerator and Microfilter etc..The method that sewage disposal device is handled sewage, can be divided into physics according to its effect
Three kinds of method, bioanalysis and chemical method.Wherein, Physical mainly separates the non-solubility material in sewage using physical action,
Do not change chemical property in processing procedure, conventional has Gravity Separation, centrifugation, counter-infiltration, air supporting etc..Physical handles structure
Thing is built relatively simple, economical, for villages and small towns water body capacity to be big, self-purification capacity is strong, the less demanding situation of sewage disposal degree.It is biological
Method utilizes the metabolic function of microorganism, and the organic matter in sewage in dissolving or colloidal state is decomposed and is oxidized to stable nothing
Machine material, is purified sewage, conventional active sludge and biomembrance process.Chemical method be using chemical reaction effect come
Processing or the method for dissolving material or colloidal substance for reclaiming sewage, are used for industrial wastewater, and conventional has Coagulation Method, neutralization
Method, oxidation-reduction method, ion-exchange etc..It is method of chemical treatment high treating effect, costly, be used as after biochemical treatment going out
Water, is further processed, and improves effluent quality.
Wherein, biological sewage facture the features such as treatment effect is preferable, treatment effeciency is higher due to widely using, and is aerated
Biofilter is exactly the common device of biological sewage facture.At present, during the operation of traditional BAF, sewage passes through filter
After the bed of material, the pollutant that water body contains is retained by filter material layer, and the biodegradable conversion adhered on filtrate, meanwhile, dissolved form
The organic matter and predetermined substance of state are also removed, and produced sludge is retained in filter layer, and only allows the water of purification to pass through.With
The operation of BAF, thickening for solid matter that filler dams and biomembrane will all block the hole between filtrate
Gap, influenceed water flux, therefore, must be timed backwash to filtrate in the prior art.
However, traditional BAF is during being backwashed, it is necessary to suspend the fortune of BAF
After row, backwash operation could be successfully carried out, this will be adversely affected to sewage treating efficiency.
Therefore, how to make the long-term continuous service of BAF, improve sewage treating efficiency, be those skilled in the art
Technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of BAF, without carrying out backwash operation, can hold for a long time
Reforwarding row, keeps the high efficiency to sewage disposal.
In order to solve the above technical problems, the utility model provides a kind of BAF, including pond body and it is arranged at it
Sand extraction device interior, for the filtrate for being deposited on the pond body bottom to be promoted to preset height, and with the sand extraction device
Be connected, the sand-washing device for being cleaned during by the dropping of filtrate that it is lifted to it.
Preferably, the sand extraction device includes sand extraction tube and the airway tube being set in the sand extraction tube, the sand extraction tube
One end be inserted into the bottom of the pond body, the other end is placed in the sand-washing device, and the airway tube is used for being deposited on
Gas is passed through in the filtrate for stating pond body bottom, to form negative pressure in the sand extraction tube and attract filtrate.
Preferably, the sand-washing device be specially be sheathed on the sand extraction tube it is outer, for make filtrate during dropping with
The mixing drum that current rub.
Preferably, it is arranged with and is led for the filtrate amount for controlling to deposit to the pond body bottom on the outer wall of the sand extraction tube
Sand hopper.
Preferably, in addition to be arranged in the pond body and positioned at it is described lead above sand hopper, the water distribution for effluent sewerage
Pipe.
Preferably, the water distributor includes many isocons for being surrounded on the sand extraction tube distribution, and several settings
Tap hole on each isocon.
Preferably, the water inlet for sewage to be introduced is offered on the side wall of the pond body, and the water inlet passes through
The mozzle being set on the sand extraction tube outer wall is connected with the water distributor.
Preferably, in addition to be arranged in the pond body, for by the sand-washing device cleaning after filtrate provide
The aeration tube of air.
BAF provided by the utility model, it is main including pond body and the sand extraction device being arranged in pond body with
And sand-washing device.Wherein, pond body is the main part of BAF, is mainly used in installing and carrying remaining part.Carry sand
Device is arranged in pond body, is mainly used in the filtrate for being deposited on pond body bottom being promoted to preset height, so that being deposited on
The filtrate of pond body bottom can move to higher position, and sand extraction device is lifted after terminating, then be sprayed so that the portion
Filtrate is divided to be gradually reduced in the presence of gravity and current.Sand-washing device is connected with sand extraction device, is mainly used in sand extraction device
After the filtrate of pond body bottom lifting to preset height and spraying, it is carried out clearly during the dropping of the part filtrate
Wash, the material that the biomembrane that will be attached on filtrate and the solid impurity that is trapped etc. may block filtrate hole is peeled off or clear
Remove so that filtrate keeps high-efficiency activated again.And the filtrate after sand-washing device is cleaned, then from the sand export stream of sand-washing device
Go out, be re-introduced into the foul water fraction in the middle part of pond body, biological cleaning is carried out to it.In this way, filtrate is by being repeatedly circulated,
The high-efficient purification effect to sewage is always ensured that, and filter tank operation need not be suspended and carries out backwash operation.In summary, this reality
With new provided BAF, can continuous service for a long time, without carrying out backwash operation, remain to sewage
The high efficiency of processing.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of overall structure diagram of embodiment provided by the utility model；
Fig. 2 is the concrete structure schematic diagram of the water distributor shown in Fig. 1.
Wherein, in Fig. 1-2：
Pond body -1, water inlet -101, sand extraction device -2, sand extraction tube -201, airway tube -202, sand-washing device -3,
Lead sand hopper -4, water distributor -5, isocon -501, tap hole -502, mozzle -6, aeration tube -7.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1 is refer to, Fig. 1 is a kind of overall structure diagram of embodiment provided by the utility model.
In a kind of embodiment provided by the utility model, BAF mainly includes pond body 1, carries sand
Device 2 and sand-washing device 3.
Wherein, pond body 1 is the main part of BAF, may generally be cylinder or inverted cone, is mainly used in
Install and carrying remaining part.The inner material of pond body 1 is generally pending sewage and filtrate, is the biological cleaning process of filtrate
Place is provided.
Sand extraction device 2 is arranged in pond body 1, is mainly used in the filtrate for being deposited on the bottom of pond body 1 being promoted to preset height,
So that the filtrate for being deposited on the bottom of pond body 1 can move to higher position, and sand extraction device 2 part filtrate lifting terminates
Afterwards, then sprayed so that the part filtrate is gradually reduced in the presence of gravity and current.Herein preferably, sand extraction device 2
The filtrate for being deposited on the bottom of pond body 1 can be lifted to the tip position to pond body 1 so that filtrate is deposited to always from the top of pond body 1
Bottom, then from bottom lifting to top, form amplitude peak circulates path.
Sand-washing device 3 is connected with sand extraction device 2, is mainly used in the filtrate lifting of the bottom of pond body 1 in sand extraction device 2 in advance
If height and after spraying, it is cleaned during the dropping of the part filtrate, the biomembrane that will be attached on filtrate
The material that may block filtrate hole with the solid impurity being trapped etc. is peeled off or removed so that filtrate keeps efficient work again
Property.And the filtrate after the cleaning of sand-washing device 3, then flowed out from the sand export of sand-washing device 3, be re-introduced into the middle part of pond body 1
Foul water fraction in, biological cleaning is carried out to it.
In this way, the BAF that the present embodiment is provided, due to the effect of sand extraction device 2 so that be deposited on pond body 1
The filtrate of bottom is promoted to certain altitude again, then after the cleaning by sand-washing device 3, is deposited to again in sewage, then
It is secondary to be purified.Filtrate is always ensured that the high-efficient purification effect to sewage by being so repeatedly circulated, and without pause
Filter tank operation carries out backwash operation, being capable of continuous service for a long time.In addition, in the present embodiment without set backwash water inlet,
The electrically operated valve of the positions such as air inlet, discharge outlet, need to only set and carry the autocontrol valve of sand break-make i.e. to the progress of sand extraction device 2
Can, significantly save cost.
In a kind of preferred embodiment on sand extraction device 2, the sand extraction device 2 mainly includes sand extraction tube 201 and led
Tracheae 202.Wherein, sand extraction tube 201 is set in outside airway tube 202, and one end of sand extraction tube 201 is inserted into the bottom of pond body 1
Portion, is directly contacted with the filtrate for being deposited on the bottom of pond body 1.And the extension synchronous with sand extraction tube 201 of airway tube 202, equally it is inserted into
The bottom of pond body 1, the pressure-air for being mainly used in providing air-source is constantly transported to the filter material layer of the bottom of pond body 1 in a steady stream
In, so form negative pressure in the sand extraction tube 201 but existed without air is equally contacted with filter material layer so that the filter of the bottom of pond body 1
Material can be attracted and be promoted to always by sand extraction tube 201 other end of sand extraction tube 201.And at the other end of sand extraction tube 201, quilt
The filtrate of lifting sprays from the mouth of pipe of sand extraction tube 201, under atmospheric pressure, and the subnormal ambient at the mouth of pipe of sand extraction tube 201 meets with
To destruction, filtrate, sewage are separated with air-flow.Wherein, filtrate is dropped in sand-washing device 3 due to self gravitation effect, and is being fallen
Constantly cleaned during falling by sand-washing device 3.Certainly, the concrete structure of sand extraction device 2 be not limited in above-mentioned sand extraction tube 201 with
The form of airway tube 202, the filtrate of the bottom of pond body 1 is such as directly retracted to it by remaining by parts such as centrifugal blower or water pumps
The forms such as top are equally possible.
In a kind of preferred embodiment on sand-washing device 3, the sand-washing device 3 can be mixing drum.Specifically, should
Mixing drum is set in outside sand extraction tube 201, is mainly used in running after filtrate is lifted and sprayed by sand extraction device 3, stirring and washing
Current and filtrate therein so that filtrate constantly rubs during dropping with current, so as to will be attached on filtrate
The material that biomembrane and the solid impurity that is trapped etc. may block filtrate hole is peeled off or removed.Certainly, the tool of sand-washing device 3
Body structure is not limited in the form of above-mentioned mixing drum, and the structure such as remaining spoiler such as constantly rotated in a circumferential direction is equally applicable.
Sand hopper 4 is led in addition, being additionally arranged in the present embodiment.This is led sand hopper 4 and is similarly disposed in pond body 1, is specifically set in and carries
On the outer wall of sandpipe 201, it is mainly used in by Stirring filtrate, while depositing to pond body 1 by the shutter control at two ends
The filtrate amount of bottom, so that the sand amount that carries with sand extraction tube 201 is adapted.
In addition, being additionally provided with the water distributor 5 for effluent sewerage in the present embodiment.Specifically, the water distributor 5 is arranged on pond
In body 1, and positioned at the top for leading sand hopper 4, after sewage is discharged from water distributor 5, drainage flow and through filter material.So set
Put, due to being dropped by the filtrate after the cleaning of sand-washing device 3 from its sand export, the sewage discharged from water distributor 5 can be fast
Speed is merged with the part filtrate, improves the efficiency that filtrate purifies sewage.
As shown in Fig. 2 Fig. 2 is the concrete structure schematic diagram of the water distributor shown in Fig. 1.
In a kind of preferred embodiment on the water distributor 5, the water distributor 5 is specifically included to be distributed around sand extraction tube 201
Many isocons 501, and several are arranged on the tap hole 502 on each isocon 501.It is arranged such, water distributor 5
Overall structure is annular in shape, the water outlet simultaneously of multiple tap holes 502, sewage discharge efficiency is improved, while also improving and filtrate
Joint efficiency.
Moreover, the present embodiment also offers water inlet 101 on the side wall of pond body 1, is exclusively used in introducing to be clean
Sewage.Simultaneously mozzle 6 is additionally arranged to connect with the water inlet 101, and the other end of mozzle 6 is connected with water distributor 5, is so made
Sewage at water inlet 101 can smoothly enter uniform discharge is carried out in water distributor 5.
In addition, being provided with aeration devices in BAF, completed in the present embodiment by aeration tube 7.Specifically,
The aeration tube 7 includes vertical tube and transverse tube.Wherein, one end of vertical tube is connected with source of the gas, and the other end is connected with transverse tube, and transverse tube is set
In the medium position of pond body 1, the top for leading sand hopper 4 is specifically may be provided at, is mainly used in providing enough for the filtrate after over cleaning
Air.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
1. a kind of BAF, it is characterised in that including pond body (1) and set in the inner, for the pond will to be deposited on
The filtrate of body (1) bottom is promoted to the sand extraction device (2) of preset height, and is connected, in quilt with the sand extraction device (2)
The sand-washing device (3) cleaned during its dropping of filtrate lifted to it.
2. BAF according to claim 1, it is characterised in that the sand extraction device (2) includes sand extraction tube
(201) and the airway tube (202) that is set in the sand extraction tube (201), one end of the sand extraction tube (201) is inserted into the pond
The bottom of body (1), the other end is placed in the sand-washing device (3), and the airway tube (202) is used for being deposited on the pond body
(1) gas is passed through in the filtrate of bottom, to form negative pressure in the sand extraction tube (201) and attract filtrate.
3. BAF according to claim 2, it is characterised in that the sand-washing device (3) is specially to be sheathed on
The mixing drum of the sand extraction tube (201) outside, for making filtrate be rubbed during dropping with current.
4. BAF according to claim 3, it is characterised in that be arranged on the outer wall of the sand extraction tube (201)
There is the filtrate amount for depositing to the pond body (1) bottom for control to lead sand hopper (4).
5. BAF according to claim 4, it is characterised in that also including being arranged in the pond body (1), simultaneously
Sand hopper (4) top, the water distributor (5) for effluent sewerage are led positioned at described.
6. BAF according to claim 5, it is characterised in that the water distributor (5) is described including being surrounded on
Many isocons (501) of sand extraction tube (201) distribution, and several are arranged on the shunting on each isocon (501)
Hole (502).
7. BAF according to claim 6, it is characterised in that offer use on the side wall of the pond body (1)
In the water inlet (101) for introducing sewage, and the water inlet (101) is by being set on the sand extraction tube (201) outer wall
Mozzle (6) is connected with the water distributor (5).
8. the BAF according to claim any one of 1-7, it is characterised in that also including being arranged at the pond body
(1) aeration tube (7) in, for providing the filtrate after the sand-washing device (3) cleaning air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421321.XU CN206457306U (en) | 2016-12-22 | 2016-12-22 | A kind of BAF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421321.XU CN206457306U (en) | 2016-12-22 | 2016-12-22 | A kind of BAF |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206457306U true CN206457306U (en) | 2017-09-01 |
Family
ID=59697335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621421321.XU Expired - Fee Related CN206457306U (en) | 2016-12-22 | 2016-12-22 | A kind of BAF |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206457306U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746051A (en) * | 2018-05-28 | 2018-11-06 | 芜湖超源力工业设计有限公司 | A kind of filtration system sand-washing device |
| CN108905320A (en) * | 2018-08-31 | 2018-11-30 | 广东普施德泽环保股份有限公司 | A kind of novel active sand filter |
| CN111039392A (en) * | 2019-12-25 | 2020-04-21 | 水净缘环境科技股份有限公司 | Multifunctional water treatment filtering device |
-
2016
- 2016-12-22 CN CN201621421321.XU patent/CN206457306U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746051A (en) * | 2018-05-28 | 2018-11-06 | 芜湖超源力工业设计有限公司 | A kind of filtration system sand-washing device |
| CN108905320A (en) * | 2018-08-31 | 2018-11-30 | 广东普施德泽环保股份有限公司 | A kind of novel active sand filter |
| CN111039392A (en) * | 2019-12-25 | 2020-04-21 | 水净缘环境科技股份有限公司 | Multifunctional water treatment filtering device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170901 |