CN207061978U - A kind of oxidation ditch jet-flow aeration recirculation unit - Google Patents
A kind of oxidation ditch jet-flow aeration recirculation unit Download PDFInfo
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- CN207061978U CN207061978U CN201720950623.4U CN201720950623U CN207061978U CN 207061978 U CN207061978 U CN 207061978U CN 201720950623 U CN201720950623 U CN 201720950623U CN 207061978 U CN207061978 U CN 207061978U
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- jet
- aeration tank
- aeration
- air feed
- deflector
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- 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
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
It the utility model is related to aeration system equipment technical field, specifically disclose a kind of oxidation ditch jet-flow aeration recirculation unit, including in elliptoid aeration tank, the aeration tank side wall is provided with water inlet pipe, also include cycling mechanism, wind sector, the cycling mechanism is radially distributed inside aeration tank, the wind sector connects with cycling mechanism, the cycling mechanism includes suction hose, circulating pump, jet pipeline, the wind sector includes annular air feed supervisor and air feed branch pipe, described air feed branch pipe one end connects with air feed supervisor, the air feed branch pipe other end and jet pipeline communication.The present apparatus can be consistent the flow direction of waste water, and waste water is discharged in order by the sequencing of entrance, it is ensured that its residence time in aeration tank, stabilize the COD value of water outlet.
Description
Technical field
It the utility model is related to aeration system equipment technical field, and in particular to a kind of oxidation ditch jet-flow aeration circulation stirring
Device.
Background technology
With the continuous development of China's industry, national quantity of wastewater effluent also increases year by year.For the sustainable development of environment
Exhibition, purified treatment is carried out to sewage and increasingly paid attention to by country.National " 863 " in 2011 is planned to lead in resource environment technology
The project of " carbon source and nitrogen phosphorus sulphur component resource technology in sewage " is proposed in domain, also will in the works in national " 973 "
" regional environmental quality develops and contamination control " has been included in focus on research direction.
In sewage disposal, World Developed Countries generally control the pollution of water body using activated sludge process.Activated sludge
Method is a kind of two stage biological processing method most widely used in our times various countries, has disposal ability is high, effluent quality is good etc.
Advantage.The principle of activated sludge process is to adsorb and aoxidize the organic matter in sewage by aerobic microbiological so as to reach purification sewage
Purpose.Therefore, the pass that the oxygen haptoreaction of the aerobic microbiological in aeration tank and abundance is sewage disposal how is enable
Key technology.
Aeration tank is the nucleus equipment of activated Sludge System, activated Sludge System is to sewage as activated sludge reactor
Clean-up effect, depend greatly on the performance of aeration tank function.The species of aeration tank is various, can by aeration method point
To be divided into blast aeration tank, mechanical aeration basin, mechanical air blast mixed aeration pond and jet aeration tanks.
Blast aeration tank is mostly rectangular gallery shape, and it is mainly characterized by that bubble, single isolated bubbles gas-liquid contact face can be produced
Product is big, but its is complicated, floor space is big, atmospheric pressure lost is larger, bubble distribution is uneven, it is easy block, design and safeguard into
This is too high.Mechanical aeration basin be mostly it is cylindrical or square, its be mainly characterized by it is simple in construction, be not easily blocked, safeguard it is simple, but its
A large amount of bubbles can not be produced, bubble distribution is uneven, reduces reaction efficiency.
Traditional aeration tank uses blast aeration system and mechanical aeration system more.Blast aeration system its air diffusion dress
Put generally porous material and be arranged on gallery bottom side, accumulation over time, the particulate pollutant in sewage easily sinks
Form sediment in aeration tank bottom, block air-diffuser.In addition, traditional plug-flow aeration tank is in rectangular gallery shape, according to sewage
Treating capacity, 2-5 gallery will be typically used, to ensure dwell time of sewage, floor space is relatively large, global design and dimension
It is too high to protect cost.Mechanical aeration system typically produces bubble using machinery rotation, and its microbubble amount is relatively low, and W-response efficiency is not
It is high.And jet aeration tanks produce bubble using jet shear gas, the shortcomings which solving traditional aeration tank, there is structure letter
Single, the advantages that floor space is small, be not easily blocked, small investment.Once aeration tank is started working, penetrated by jet-flow aeration equipment
The high-speed liquid entered will drive the particulate pollutant for being deposited in aeration tank bottom to move together, be not in the situation of blocking.
Although some jet-flow aeration equipment described in patent document can solve the problems, such as that prior art is present, due to it
Inner space is larger, and in actual use, the waste water flow path in aeration tank is longer, and short stream occurs in effluent part
Phenomenon, directly by the pond body water surface, just directly discharged in the not up to design residence time from delivery port, cause water outlet COD to fluctuate,
Influence jet-flow aeration wastewater treatment efficiency.
The content of the invention
The purpose of this utility model is：For waste water flow path in the aeration tank of prior art jet-flow aeration equipment compared with
Long, short flow phenomenon occurs in effluent part, directly by pond body water surface, not up to designs the residence time just directly from delivery port
Discharge, water outlet COD is caused to fluctuate, the problem of influenceing jet-flow aeration wastewater treatment efficiency, there is provided a kind of oxidation ditch jet-flow aeration follows
Ring agitating device, can effectively avoid waste water inside pond body from short flow phenomenon occur, it is ensured that the flow direction of waste water is consistent, make waste water by
The sequencing of entrance is discharged in order, it is ensured that its residence time in aeration tank, is stabilized the COD value of water outlet, is improved dirt
Water treatment efficiency.
The technical solution adopted in the utility model is as follows：
A kind of oxidation ditch jet-flow aeration recirculation unit, including set in elliptoid aeration tank, the aeration tank side wall
There is water inlet pipe, in addition to for making the cycling mechanism, the confession for the microorganism offer air into pond that effluent cycle flows in pond
Wind mechanism, the cycling mechanism is radially distributed inside aeration tank, and the wind sector is annularly arranged in aeration tank
Outside, the wind sector connect with cycling mechanism,
The cycling mechanism includes suction hose, circulating pump, the jet pipeline drawn path by sewage and be sequentially communicated, the suction
The termination of water pipe is immersed under the liquid level of aeration tank；
The wind sector includes annular air feed supervisor and air feed branch pipe, and the annular air feed supervisor is arranged on outside aeration tank
Side, described air feed branch pipe one end connect with air feed supervisor, the air feed branch pipe other end and jet pipeline communication；
Preferably, the present apparatus also includes being used for the deflector for guiding that sewage flows in pond, the deflector is fixed
In the middle part of aeration tank.
Preferably, the deflector includes the first arc deflector, the center set gradually by effluent cycle circuit
Straight line deflector, the second arc deflector, the radian of first arc deflector and the second arc deflector and aeration tank
Radian is consistent, and the centre straight ahead deflector is arranged on the major axis of aeration tank.
Preferably, also include be used for discharge aeration after sewage discharge mechanism, the discharge mechanism include scum board,
Spillway basin and outlet pipe, the scum board are fixed at the top of spillway basin, and the outlet pipe connects with spillway basin bottom.
Preferably, the end set of the suction hose has filter mantle.
Preferably, it is provided with corrosion protective covering in the water inlet pipe, suction hose and jet pipeline.
Preferably, also include being used in secondary use bottom of pond precipitating sludge the microorganism recovering mechanism for remaining microorganism,
The microorganism recovering mechanism is connected between water inlet pipe and aeration tank.
Preferably, the microorganism recovering mechanism includes selection pond, the agitating equipment for combined sewage and sludge, used
In the mud return line of returned sludge, the selection pond is connected by pipeline with aeration tank, and the agitating equipment is arranged on selection
Inside pond, the mud return line is connected between aeration tank and selection pond.
Preferably, the agitating equipment includes drinking-water pipe, suction pump, the sparge pipe being sequentially connected, the sparge pipe leads to
Sealed connecting component is crossed to connect with wind sector.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, the utility model oxidation ditch jet-flow aeration recirculation unit, cycling mechanism is radially distributed in aeration tank
Inside, and using the first arc deflector, centre straight ahead deflector, the diversion Design of the second arc deflector, the two mutually matches
Close, movement locus of the current along ellipse in aeration tank is moved successively, ensure effective exposure of all circulating sewages in pond
Gas duration is consistent, and the sewage being introduced into first is discharged, and is efficiently solved because pond body space is excessive, and short stream, shadow occurs in sewage
The problem of ringing water outlet COD value, the effect of sewage aeration processing is improved, good guarantee is provided for subsequent treatment.
2nd, the utility model oxidation ditch jet-flow aeration recirculation unit, because cycling mechanism is radial arrangement,
Water outlet direction is consistent, and its caused impulsive force will be mutually superimposed, it is easier to bottom of pond activated sludge is mixed with waste water, makes work
Property sludge in microorganism more fully contact waste water, improve Air Exposure effect.
3rd, aeration tank of the present utility model uses elliptic design, while effective reaction space is ensured, reduces biography
The dead angle of system aeration tank, the phenomenon for avoiding activated sludge in dead angle acumulation occur, and improve the operational efficiency of equipment.
4th, traditional drainage pattern is to open up discharge outlet in aeration tank side wall to carry out draining, and this drainage pattern tends not to
Effective aeration time is ensured, and easily discharge activated sludge in the lump, cause wasting for microorganism；Water outlet of the present utility model
Mechanism uses overflow manner draining, i.e., when water-holding quantity reaches peak value in aeration tank, is discharged by scum board into spillway basin,
The reaction time of sewage in pond is ensured, and can effectively avoids activated sludge from wasting.
5th, the wind sector of the present apparatus is cycling mechanism air feed, sewage is projected with gas mixing, it is easier to by bottom of pond
Activated sludge impact is got up, meanwhile, the oxygen in gas also can be the microorganism oxygen supply in activated sludge, improve its activity, protect
Effective progress of reaction is hindered.
6th, the present apparatus extremely selects the sludge of aeration tank bottom sediments in pond by pipeline, makees in the agitation of agitating equipment
Aeration tank is again fed under, after being sufficiently mixed with the sewage of water inlet to be reacted, and improves the utilization ratio of microorganism,
Reaction raw materials are saved.
Brief description of the drawings
Fig. 1 is the plan of the utility model oxidation ditch jet-flow aeration recirculation unit；
Fig. 2 is the 1-1 profiles of the utility model oxidation ditch jet-flow aeration recirculation unit；
Fig. 3 is cycling mechanism enlarged drawing of the present utility model；
Fig. 4 is the plan of microorganism recovering mechanism of the present utility model；
Fig. 5 is microorganism recovering mechanism profile of the present utility model；
Fig. 6 is mud return line schematic view of the mounting position of the present utility model；
Marked in figure：1- aeration tanks；2- water inlet pipes；3- cycling mechanisms；3.1- suction hose；3.2- circulating pump；3.3- jet
Pipeline；4- wind sectors；4.1- annulars air feed is responsible for；4.2- air feed branch pipes；5- deflectors；The arc deflectors of 5.1- first；
5.2- centre straight ahead deflectors；The arc deflectors of 5.3- second；6- discharge mechanisms；6.1- scum board；6.2- spillway basin；6.3-
Outlet pipe；7- microorganism recovering mechanisms；7.1- selects pond；7.2- agitating equipment；7.2.1- drinking-water pipe；7.2.2- suction pump；
7.2.3- sparge pipe；7.3- mud return line.
Embodiment
All features disclosed in this specification, can be with any in addition to mutually exclusive feature and/or step
Mode combines.
The present invention is elaborated with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6.
Embodiment 1, a kind of oxidation ditch jet-flow aeration recirculation unit, including in elliptoid aeration tank 1, the aeration
The side wall of pond 1 is provided with water inlet pipe 2, and water inlet pipe 2 is connected by seal with aeration tank 1.Also include being used to make effluent cycle stream in pond
Dynamic cycling mechanism 3, for into pond microorganism provide the wind sector 4 of air, for guiding the water conservancy diversion that sewage flows in pond
Mechanism 5, the cycling mechanism 3 is radially distributed inside aeration tank 1, and the cycling mechanism 3 positioned at oval arc position is
Along the circular radial arrangement of circular arc, and the ring mechanism 3 positioned at oval long side straightway is then by parallel to ellipse short shaft
Direction is arranged.The wind sector 4 is annularly arranged in the outside of aeration tank 1, and the wind sector 4 connects with cycling mechanism 3,
The deflector 5 is fixed on the middle part of aeration tank 1.
The cycling mechanism 3 includes suction hose 3.1, circulating pump 3.2, the jet pipeline drawn path by sewage and be sequentially communicated
3.3, the position of 1.2m below the liquid level of aeration tank 1 is immersed in the termination of the suction hose 3.1；Further, in order to avoid waste water
In corrosive substance destroy pipeline, uses anticorrosive paint in the water inlet pipe 2 of the present embodiment, suction hose 3.1 and jet pipeline 3.3
It has been coated with one layer of corrosion protective covering.At the same time, in order to prevent from blocking, end set mistake of the present embodiment in suction hose 3.1
Filter bowl.
The wind sector 4 includes annular air feed supervisor 4.1 and air feed branch pipe 4.2, and annular air feed supervisor 4.1 uses
DN600 pipeline is made, and the annular air feed supervisor 4.1 is arranged on the outside of aeration tank 1, described one end of air feed branch pipe 4.2
Connected with air feed supervisor 4.1 by seal, the other end of air feed branch pipe 4.2 connects with jet pipeline 3.3, reaches sewage and gas
The purpose of mixing.
The first arc deflector 5.1, the centre straight ahead that the deflector 5 includes setting gradually by effluent cycle circuit are led
Flowing plate 5.2, the second arc deflector 5.3, the radian of the arc deflector 5.3 of the first arc deflector 5.1 and second and exposure
The radian in gas pond 1 is consistent, and the centre straight ahead deflector 5.2 is arranged on the major axis of aeration tank 1.First arc deflector 5.1,
Centre straight ahead deflector 5.2, the height of the second arc deflector 5.3 are less than aeration tank 500mm.
Further, the present embodiment also includes the discharge mechanism 6 for being used for sewage after discharge is aerated, and the discharge mechanism 6 wraps
Include scum board 6.1, spillway basin 6.2 and outlet pipe 6.3, the scum board 6.1 is fixed on the top of spillway basin 6.2, it is described go out
Water pipe 6.3 connects with the bottom of spillway basin 6.2.The height of spillway basin 6.2 is less than aeration tank 300mm.
When the present embodiment works, sewage is transported in aeration tank 1 by water inlet pipe 2, when sewage reaches suction hose 3.1
During the position of water sucking mouth, circulating pump 3.2 starts work, by sewage transport to jet pipeline 3.3, at the same time, the confession of wind sector 4
Wind branch pipe 4.2 is also synchronous to convey air to jet pipeline 3.3, and after sewage mixing air, aeration tank is ejected into from jet pipeline 3.3
In 1, because the water (flow) direction of jet pipeline 3.3 is consistent, bottom of pond organic sludge can effectively be stirred, be that microorganism starts work
Make；During drainage flow, because the first arc deflector 5.1, centre straight ahead deflector 5.2, second arc deflector 5.3 are deposited
It is forced to flow by this path in, sewage, avoids it from flowing freely caused short flow problem, ensure all circulating sewages in pond
Effective aeration duration be consistent, the sewage being introduced into first is discharged；After the completion of sewage aeration processing, by scum board
6.1 enter spillway basin 6.2, are discharged finally by outlet pipe 6.3, into next processing stage.
Following optimization has been made in embodiment 2, this implementation on the basis of embodiment 1：The present embodiment also includes being used for secondary profit
With the microorganism recovering mechanism 7 that microorganism is remained in bottom of pond precipitating sludge, the microorganism recovering mechanism is connected to sealed connection
Between water inlet pipe 2 and aeration tank 1.
Further, the microorganism recovering mechanism 7 of the present embodiment includes selection pond 7.1, for combined sewage and sludge
Agitating equipment 7.2, the mud return line 7.3 for returned sludge, the selection pond 7.1 are connected by pipeline with aeration tank 1, institute
State agitating equipment 7.2 be arranged on selection pond 7.1 inside, the mud return line 7.3 be connected to aeration tank 1 and selection pond 7.1 it
Between.Mud return line 7.3 connects with the selection side wall upper part of pond 7.1, so as to which the sewage for easily facilitating with newly entering is stirred.
Further, the agitating equipment 7.2 of the present embodiment include be sequentially connected drinking-water pipe 7.2.1, suction pump 7.2.2,
Sparge pipe 7.2.3, the sparge pipe 7.2.3 are connected by sealed connecting component with wind sector 4.Agitating equipment 7.2 and embodiment 1
The operation principle of cycling mechanism 3 it is the same.
The present embodiment is delivered to selection pond by mud return line 7.3 at work, by the sludge of the bottom sediments of aeration tank 1
In 7.1, under the agitaion of agitating equipment 7.2, aeration tank 1 is again fed to after being sufficiently mixed with the sewage of water inlet 2 and is entered
Row reaction, improves the utilization ratio of microorganism, has saved reaction raw materials.
It is embodiment of the present utility model as described above.The utility model is not limited to above-mentioned embodiment, anyone
The structure change made under enlightenment of the present utility model should be learnt, it is every that there is same or like skill with the utility model
Art scheme, each falls within the scope of protection of the utility model.
Claims (9)
1. a kind of oxidation ditch jet-flow aeration recirculation unit, including in elliptoid aeration tank (1), aeration tank (1) side
Wall is provided with water inlet pipe (2), it is characterised in that：The cycling mechanism (3) that also includes being used for flowing effluent cycle in pond, for pond
Interior microorganism provides the wind sector (4) of air, and the cycling mechanism (3) is radially distributed internal in aeration tank (1), described
Wind sector (4) is annularly arranged in the outside of aeration tank (1), and the wind sector (4) connects with cycling mechanism (3),
The cycling mechanism (3) includes suction hose (3.1), circulating pump (3.2), the jet pipe drawn path by sewage and be sequentially communicated
Road (3.3), the termination of the suction hose (3.1) are immersed under the liquid level of aeration tank (1)；
The wind sector (4) includes annular air feed supervisor (4.1) and air feed branch pipe (4.2), the annular air feed supervisor (4.1)
On the outside of aeration tank (1), described air feed branch pipe (4.2) one end connects with air feed supervisor (4.1), and air feed branch pipe (4.2) is another
One end connects with jet pipeline (3.3).
2. oxidation ditch jet-flow aeration recirculation unit as claimed in claim 1, it is characterised in that：Also include being used to guide pond
The deflector (5) of interior sewage flow direction, the deflector (5) are fixed in the middle part of aeration tank (1).
3. oxidation ditch jet-flow aeration recirculation unit as claimed in claim 2, it is characterised in that：The deflector (5)
Including the first arc deflector (5.1), centre straight ahead deflector (5.2), the second arc set gradually by effluent cycle circuit
The radian of deflector (5.3), first arc deflector (5.1) and the second arc deflector (5.3) and the arc of aeration tank (1)
Degree is consistent, and the centre straight ahead deflector (5.2) is arranged on the major axis of aeration tank (1).
4. oxidation ditch jet-flow aeration recirculation unit as claimed in claim 1, it is characterised in that：Also include being used to discharge exposing
The discharge mechanism (6) of sewage after gas, the discharge mechanism (6) include scum board (6.1), spillway basin (6.2) and outlet pipe
(6.3), the scum board (6.1) is fixed at the top of spillway basin (6.2), the outlet pipe (6.3) and spillway basin (6.2) bottom
Connection.
5. oxidation ditch jet-flow aeration recirculation unit as claimed in claim 1, it is characterised in that：The suction hose (3.1)
End set have filter mantle.
6. oxidation ditch jet-flow aeration recirculation unit as claimed in claim 1, it is characterised in that：The water inlet pipe (2), inhale
Corrosion protective covering is provided with water pipe (3.1) and jet pipeline (3.3).
7. the oxidation ditch jet-flow aeration recirculation unit as described in claim 1-6 is any, it is characterised in that：Also include being used for
The microorganism recovering mechanism (7) of microorganism is remained in secondary use bottom of pond precipitating sludge, the microorganism recovering mechanism is connected to
Between water inlet pipe (2) and aeration tank (1).
8. oxidation ditch jet-flow aeration recirculation unit as claimed in claim 7, it is characterised in that：The microorganism recycling machine
Structure (7) includes selection pond (7.1), agitating equipment (7.2), the sludge reflux for returned sludge for combined sewage and sludge
Manage (7.3), selection pond (7.1) is connected by pipeline with aeration tank (1), and the agitating equipment (7.2) is arranged on selection pond
(7.1) internal, the mud return line (7.3) is connected between aeration tank (1) and selection pond (7.1).
9. oxidation ditch jet-flow aeration recirculation unit as claimed in claim 8, it is characterised in that：The agitating equipment
(7.2) drinking-water pipe (7.2.1), suction pump (7.2.2), the sparge pipe (7.2.3) being sequentially connected, the sparge pipe are included
(7.2.3) is connected by sealed connecting component with wind sector (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950623.4U CN207061978U (en) | 2017-08-01 | 2017-08-01 | A kind of oxidation ditch jet-flow aeration recirculation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950623.4U CN207061978U (en) | 2017-08-01 | 2017-08-01 | A kind of oxidation ditch jet-flow aeration recirculation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207061978U true CN207061978U (en) | 2018-03-02 |
Family
ID=61518626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720950623.4U Active CN207061978U (en) | 2017-08-01 | 2017-08-01 | A kind of oxidation ditch jet-flow aeration recirculation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207061978U (en) |
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2017
- 2017-08-01 CN CN201720950623.4U patent/CN207061978U/en active Active
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