CN209039151U - The automatic regulating system of sludge solid-liquid separator and biochemical reaction tank oxygen demand - Google Patents
The automatic regulating system of sludge solid-liquid separator and biochemical reaction tank oxygen demand Download PDFInfo
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- CN209039151U CN209039151U CN201821431585.2U CN201821431585U CN209039151U CN 209039151 U CN209039151 U CN 209039151U CN 201821431585 U CN201821431585 U CN 201821431585U CN 209039151 U CN209039151 U CN 209039151U
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- reaction tank
- biochemical reaction
- sludge
- liquid separator
- upper plate
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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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- Activated Sludge Processes (AREA)
Abstract
The utility model relates to sewage treatment fields, disclose a kind of sludge solid-liquid separator, for being set in biochemical reaction tank, it includes separator ontology, the separator ontology includes isolation cover, Disengagement zone is formed between the isolation cover and the pool wall of biochemical reaction tank, the isolation cover includes baffle upper plate and the chin spoiler that is connected to below the baffle upper plate, the baffle upper plate is equipped with the water distributing pore of inside and outside connection, the side that the water distributing pore is located at the Disengagement zone is communicated with diversion pipe, the chin spoiler is tilted towards the pool wall of the biochemical reaction tank from inside to outside from top to bottom, sludge reflux mouth is limited between the lower end of the chin spoiler and the pool wall of the biochemical reaction tank.The invention also discloses a kind of automatic regulating systems of biochemical reaction tank oxygen demand.The utility model can be realized mud mixture in Disengagement zone quick separating, and realize the automatic control of aerator.
Description
Technical field
The utility model relates to technical field of sewage, anti-more particularly to a kind of sludge solid-liquid separator and biochemistry
Answer the automatic regulating system of pond oxygen demand.
Background technique
With national energy-saving emission reduction work carry out in a deep going way and national environmental protection policy gradually becomes sternly in recent years, sewage treatment
The stable operation and energy conservation of factory attract wide attention.Currently, domestic sewage treatment plant generally use be activity
Sludge, wherein aeration energy consumption can account for the 40-60% of whole energy consumptions, and aeration mode mainly has surface aeration and bottom blast micro-
Hole aeration etc..
At present in sewage disposal process, for the concentration for adjusting dissolved oxygen in aerobic zone in biochemical reaction tank, usually first lead to
The dissolved oxygen concentration in artificial or online dissolved oxygen instrument detection aerobic zone is crossed, it is general logical according to dissolved oxygen concentration blast aeration
The aperture of blower frequency and valve is overregulated, surface aeration adjusts dissolved oxygen concentration by opening number of units of equipment etc., or
Person makes it meet technique requirement by the linkage of simple dissolved oxygen instrument and aerator.
Since municipal sewage plant haves the characteristics that water water, water quality are unstable, cause in sewage disposal process
The oxygen demand moment of biochemical reaction tank changes.Therefore, the stabilization to guarantee treatment effect, it is desirable that the dissolved oxygen control of biochemical reaction tank
In metastable range, i.e. aerating system will be adjusted in time system according to the variation of amount of inlet water, water quality, expire aeration quantity
Sufficient burden requirement and not excess aeration lead to the huge waste of the energy.
Traditional is that dissolved oxygen concentration is adjusted not in time the shortcomings that adjusting the aeration control method of operation by manual operation, pond
Interior dissolved oxygen concentration fluctuation is big, is not able to satisfy the needs of process stabilizing operation.Some run units are super in order to avoid causing to be discharged
Target happens, and guarantees the stability of water outlet often through the mode of excess aeration, this will will cause huge energy wave
Take, simultaneously because excessive aeration causes excessively high this of dissolved oxygen in returned sludge that will seriously destroy detesting for biochemical reaction tank front end
Oxygen area and anoxic zone cause entire biochemical reaction system that cannot normally play corresponding effect, eventually lead to subsequent pharmaceutical quantities
Increase, even will affect the stability of water outlet when serious.
Existing part of contaminated water treatment plant passes through the data of dissolved oxygen instrument in biochemical reaction tank, linkage control aerator
The number of units of frequency or opening of device, to achieve the purpose that control air quantity.It is general that biochemistry pool end dissolved oxygen content is recommended to exist
2.0mg/L, however when practical biochemical reaction tank end dissolved oxygen content in many cases is lower than 2mg/L, even lower than 1mg/L
It might not illustrate that biochemical reaction tank aerobic zone lacks dissolved oxygen, not necessarily effluent quality is impacted, and increase at this time
Add aeration to frequently can lead to dissolved oxygen to increase rapidly.Therefore control aeration quantity is judged only by dissolved oxygen instrumented data, molten
Solution oxygen instrument will then will cause the frequent start-stop (aerobic zone of equipment lower than generally just needing to increase aeration quantity in the case where 2mg/L
Practical inreal anoxic), increasing that aeration quantity will cause in the case where not real anoxic in biochemical reaction tank aerobic zone need not
It is excessively high corresponding to influence front end anaerobic zone and anoxic zone performance to also result in dissolved oxygen in returned sludge for the energy waste wanted
Biochemical action.
Utility model content
(1) technical problems to be solved
The utility model aims to solve at least one of technical problems existing in the prior art or related technologies.
The purpose of the utility model is to provide a kind of sludge solid-liquid separators, by forming Disengagement zone, in biochemical reaction
In the aeration process of pond will not to the sludge of Disengagement zone formed disturb, and mud mixture Disengagement zone can quick separating, point
Supernatant from after can react practical water quality situation in biochemical reaction tank in time, be convenient for subsequent detection.
The another object of the utility model is to provide a kind of automatic regulating system of biochemical reaction tank oxygen demand, so that sewage
Treatment plant can be by automatically adjusting the open frequency of aerator or opening number of units, so that molten in biochemical reaction tank aerobic zone
Solution oxygen maintains as far as possible meets biochemical reaction needs and not excess, to reach energy saving purpose, while guaranteeing the stabilization of water outlet
It is up to standard.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of sludge solid-liquid separator, for being set to biochemistry
In reaction tank comprising separator ontology, the separator ontology includes isolation cover, the isolation cover and biochemical reaction tank
Pool wall between form Disengagement zone, the isolation cover includes baffle upper plate and the lower water conservancy diversion that is connected to below the baffle upper plate
Plate, the baffle upper plate are equipped with the water distributing pore of inside and outside connection, and the side that the water distributing pore is located at the Disengagement zone is communicated with water conservancy diversion
Pipe, the chin spoiler is tilted towards the pool wall of the biochemical reaction tank from inside to outside from top to bottom, under the chin spoiler
Sludge reflux mouth is limited between end and the pool wall of the biochemical reaction tank.
Wherein, the baffle upper plate is located at the Disengagement zone and is externally provided with inner concave arc surface, and the water distributing pore is set to the indent
At cambered surface.
Wherein, the baffle upper plate is additionally provided with the horizontal extension section connecting with the inner concave arc surface transition.
Wherein, the top of the chin spoiler is in the outer convex globoidal protruded from inside to outside.
Wherein, the lower end of the diversion pipe is arranged at the outer convex globoidal.
Wherein, the separation is divided into supernatant area and sludge settling area by the lower end of the diversion pipe.
Wherein, multiple water distributing pores are distributed on the baffle upper plate.
The utility model also provides a kind of automatic regulating system of biochemical reaction tank oxygen demand comprising dirt described above
Mud equipment for separating liquid from solid and ammonia nitrogen detector, control device, frequency conversion equipment and aerator, the sludge are separated by solid-liquid separation
Device is set in biochemical reaction tank, Disengagement zone is formed between the pool wall of the biochemical reaction tank, supernatant is divided into the separation
Liquid zone and sludge settling area, the ammonia nitrogen detector are connected to by draw water pipeline with the supernatant liquid zone, the ammonia nitrogen detector
It is sequentially connected with the control device, frequency conversion equipment and aerator, the aerator is set to the institute outside the Disengagement zone
It states in biochemical reaction tank.
Wherein, the lower end of the draw water pipeline is connected with suction pump.
Wherein, the control device is PLC controller, and the frequency conversion equipment is frequency converter, and the ammonia nitrogen detector will be examined
The ammonia nitrogen concentration signal measured is transferred to the PLC controller, the PLC controller according to collected ammonia nitrogen concentration signal with
Setting concentration value is compared, and controls the frequency converter according to comparison result and issues corresponding operating instruction, to control the exposure
The unlatching number of units or open frequency of gas equipment.
(3) beneficial effect
Compared with prior art, the utility model has the advantage that
A kind of sludge solid-liquid separator provided by the utility model passes through shape between isolation cover and biochemical reaction tank pool wall
At Disengagement zone, disturbed to will not be formed to the sludge of Disengagement zone in biochemical reaction tank aeration process, and mud mixture
Disengagement zone can quick separating, the supernatant after separation can react practical water quality situation in biochemical reaction tank in time.
A kind of automatic regulating system of biochemical reaction tank oxygen demand provided by the utility model is good in biochemical reaction tank first
Oxygen area end (supernatant liquid zone) increases ammonia nitrogen detector, for detecting corresponding ammonia nitrogen concentration, according to biochemical reaction tank supernatant
The ammonia nitrogen value of liquid zone determines in biochemical reaction tank aerobic zone whether dissolved oxygen is sufficient, and then instructs the unlatching number of units of aerator
And open frequency；Secondly, the data of ammonia nitrogen detector test are connected by control device, frequency conversion equipment and aerator, it is real
Automatic control is showed, it is no longer necessary to which special operations staff operates the unlatching number of units and open frequency of aerator, realizes exposure
The automatic control of gas equipment allows sewage treatment plant by automatically adjusting the open frequency of aerator or opening platform
It is several, so that the dissolved oxygen in biochemical reaction tank aerobic zone maintains as far as possible meets biochemical reaction needs and not excess, to reach
To energy saving purpose, while guaranteeing the stably reaching standard of water outlet.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of sludge solid-liquid separator of the utility model embodiment；
Fig. 2 is a kind of working principle diagram of the automatic regulating system of biochemical reaction tank oxygen demand of the utility model embodiment；
In figure: 1: biochemical reaction tank；2: sludge solid-liquid separator；21: baffle upper plate；22: water distributing pore；23: lower water conservancy diversion
Plate；24: diversion pipe；25: Disengagement zone；26: sludge reflux mouth；3: suction pump；4: ammonia nitrogen detector.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it is above-mentioned that concrete condition understanding can be regarded
The concrete meaning of term in the present invention.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multiple groups " are meant that two
It is a or more than two.
As shown in Figure 1, the utility model embodiment provides a kind of sludge solid-liquid separator 2, it is biochemical anti-for being set to
It answers in pond 1 comprising separator ontology, the separator ontology include isolation cover, and isolation cover can be with biochemical reaction tank 1
Pool wall stick together, between the isolation cover and the pool wall of biochemical reaction tank 1 formed Disengagement zone 25, isolation cover can be in column
Body, cube etc., the isolation cover include baffle upper plate 21 and the chin spoiler 23 for being connected to 21 lower section of the baffle upper plate, described
Baffle upper plate 21 is equipped with the water distributing pore 22 of inside and outside connection, and the mud mixture in biochemical reaction tank 1 enters from water distributing pore 22 to be separated
Area 25, the side that the water distributing pore 22 is located at the Disengagement zone 25 are communicated with diversion pipe 24, and diversion pipe 24 is for mixing muddy water
Object is oriented to chin spoiler 23, and the chin spoiler 23 is tilted towards the pool wall of the biochemical reaction tank 1 from inside to outside from top to bottom,
Sludge reflux mouth 26, chin spoiler 23 are limited between the lower end of the chin spoiler 23 and the pool wall of the biochemical reaction tank 1
The distance between lower end and 1 pool wall of biochemical reaction tank are gradually tightened, and precipitating sludge is via 26 automatic back flow of sludge reflux mouth to life
Change reaction tank 1, simultaneously because sludge reflux mouth 26 is smaller, it will not be to Disengagement zone 25 in 1 aeration process of biochemical reaction tank
The sludge of precipitating forms disturbance, realizes that solid-liquid efficiently separates.Due to repeating water inlet always in Disengagement zone 25, sludge settling returns
The processes such as stream, therefore the supernatant of Disengagement zone 25 can timely react practical water quality situation in biochemical reaction tank 1.
For the ease of by the sewage in biochemical reaction tank 1 from the smooth water conservancy diversion of water distributing pore 22 to Disengagement zone 25, the upper water conservancy diversion
Plate 21 is located at the Disengagement zone 25 and is externally provided with inner concave arc surface, and the water distributing pore 22 is set at the inner concave arc surface, in addition, in order into
One step realizes preferable guide functions, and the baffle upper plate 21 is additionally provided with the horizontal extension connecting with the inner concave arc surface transition
Section.
Further, the top of the chin spoiler 23 is in the outer convex globoidal protruded from inside to outside, the diversion pipe 24
Lower end is arranged at the outer convex globoidal, can quickly be deposited to after the outer convex globoidal of precipitating sludge contact chin spoiler 23
25 bottom of Disengagement zone, and supernatant flows up, to realize efficiently separating for solid-liquid.Wherein, the lower end of the diversion pipe 24
The Disengagement zone 25 is divided into supernatant liquid zone and sludge settling area as interface.
Wherein, multiple water distributing pores 22 are distributed on the baffle upper plate 21, enter separation in mud mixture in this way
It is smaller to precipitating sludge disturbance when area 25, it will not influence sludge settling effect.
In biochemical wastewater treatment field, mainly by oxygen demand under aerobic environment in sewage and ammonia nitrogen obtain degradation and
Nitrification, since the Nitrobacter for nitration reaction is in autotrophic bacterium, competitiveness is poor in microbial flora, utilizes dissolved oxygen
Speed is relatively slow, therefore shows that whole system has contained abundance if ammonia nitrogen is reduced to lower level in the entire system
Dissolved oxygen, accordingly can using the ammonia-nitrogen content of aerobic zone end in biochemical reaction tank 1 as determine aerobic zone whether dissolved oxygen
Sufficient indication signal.
As shown in Fig. 2, the utility model embodiment additionally provides a kind of automatic regulating system of biochemical reaction tank oxygen demand,
As shown in connection with fig. 1 comprising sludge solid-liquid separator 2 and ammonia nitrogen detector 4 described above, control device, frequency conversion are set
Standby and aerator, the sludge solid-liquid separator 2 are set in biochemical reaction tank 1, the pool wall with the biochemical reaction tank 1
Between form Disengagement zone 25, the Disengagement zone 25 is divided for supernatant liquid zone and sludge settling area, and the ammonia nitrogen detector 4 is by drawing water
Pipeline is connected to the supernatant liquid zone, and the ammonia nitrogen detector 4 and the control device, frequency conversion equipment and aerator are successively
Connection, the aerator are set in the biochemical reaction tank 1 outside the Disengagement zone 25.Specifically, the control device can
Think PLC controller, the frequency conversion equipment can be frequency converter, the ammonia nitrogen concentration signal that the ammonia nitrogen detector 4 will test
It is transferred to the PLC controller, the PLC controller is compared according to collected ammonia nitrogen concentration signal and setting concentration value
It is right, the frequency converter is controlled according to comparison result and issues corresponding operating instruction, to control the unlatching number of units of the aerator
Or open frequency.
Ammonia nitrogen detector 4 is increased in 1 aerobic zone end of biochemical reaction tank (supernatant liquid zone) first, it is corresponding for detecting
Ammonia nitrogen concentration determines whether dissolved oxygen is filled in 1 aerobic zone of biochemical reaction tank according to the ammonia nitrogen value of 1 supernatant liquid zone of biochemical reaction tank
Foot, and then instruct the unlatching number of units and open frequency of aerator；Secondly, the data that ammonia nitrogen detector 4 detects are passed through control
Device, frequency conversion equipment and aerator connect, and realize automatic control, it is no longer necessary to which special operations staff operates aerator
Unlatching number of units and open frequency, realize the automatic control of aerator, sewage treatment plant passed through automatic
It adjusts the open frequency of aerator or opens number of units, so that the dissolved oxygen in 1 aerobic zone of biochemical reaction tank maintains completely as far as possible
Sufficient biochemical reaction needs and not excess, to reach energy saving purpose, while guaranteeing the stably reaching standard of water outlet.
For convenient for providing power to draw water pipeline, the lower end of the draw water pipeline can connect suction pump 3.Ammonia nitrogen is examined
The end that 4 sample point of instrument is located at every group of biochemical reaction tank 1 is surveyed, the ammonia of 1 supernatant of biochemical reaction tank is detected by ammonia nitrogen detector 4
Nitrogen concentration, in the specific implementation process there may be multiple biochemical reaction tanks 1, due to ammonia nitrogen on-line detector measurement data compared with
Fastly, each measurement data about 20 minutes, for reduce online detection instrument quantity, can be used an ammonia nitrogen detector 4 detect it is more
The ammonia nitrogen concentration of a 1 supernatant of biochemical reaction tank.
As can be seen from the above embodiments, the utility model determines biochemical anti-according to the ammonia nitrogen value of biochemical reaction tank end
Whether dissolved oxygen is sufficient in the aerobic zone Ying Chi, and then instructs the unlatching number of units and open frequency of aerator, can be realized aeration
The automatic control of equipment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of sludge solid-liquid separator, for being set in biochemical reaction tank, which is characterized in that including separator ontology,
The separator ontology includes isolation cover, forms Disengagement zone between the isolation cover and the pool wall of biochemical reaction tank, it is described every
From the chin spoiler that cover includes baffle upper plate and is connected to below the baffle upper plate, the baffle upper plate is equipped with inside and outside connection
Water distributing pore, the side that the water distributing pore is located at the Disengagement zone are communicated with diversion pipe, and the chin spoiler is from top to bottom from introversion
The outer pool wall towards the biochemical reaction tank tilts, and limits between the lower end of the chin spoiler and the pool wall of the biochemical reaction tank
Make sludge reflux mouth.
2. sludge solid-liquid separator according to claim 1, which is characterized in that the baffle upper plate is located at the separation
Area is externally provided with inner concave arc surface, and the water distributing pore is set at the inner concave arc surface.
3. sludge solid-liquid separator according to claim 2, which is characterized in that the baffle upper plate be additionally provided with it is described
The horizontal extension section of inner concave arc surface transition connection.
4. sludge solid-liquid separator according to claim 1, which is characterized in that the top of the chin spoiler is in by interior
The outer convex globoidal outwardly protruded.
5. sludge solid-liquid separator according to claim 4, which is characterized in that the lower end of the diversion pipe is close to described
It is arranged at outer convex globoidal.
6. sludge solid-liquid separator according to claim 5, which is characterized in that the lower end of the diversion pipe will be described point
From dividing into supernatant liquid zone and sludge settling area.
7. sludge solid-liquid separator according to claim 1, which is characterized in that be distributed on the baffle upper plate multiple
The water distributing pore.
8. a kind of automatic regulating system of biochemical reaction tank oxygen demand, which is characterized in that including any one of such as claim 1-7 institute
The sludge solid-liquid separator and ammonia nitrogen detector, control device, frequency conversion equipment and aerator stated, the sludge are solid
Liquid separating apparatus is set in biochemical reaction tank, and Disengagement zone is formed between the pool wall of the biochemical reaction tank, and the separation is distinguished
For supernatant liquid zone and sludge settling area, the ammonia nitrogen detector is connected to by draw water pipeline with the supernatant liquid zone, the ammonia nitrogen
Detector is sequentially connected with the control device, frequency conversion equipment and aerator, and the aerator is set to the Disengagement zone
In the outer biochemical reaction tank.
9. the automatic regulating system of biochemical reaction tank oxygen demand according to claim 8, which is characterized in that the drinking-water pipe
The lower end on road is connected with suction pump.
10. the automatic regulating system of biochemical reaction tank oxygen demand according to claim 8, which is characterized in that the control
Device is PLC controller, and the frequency conversion equipment is frequency converter, the ammonia nitrogen concentration signal transmission that the ammonia nitrogen detector will test
To the PLC controller, the PLC controller is compared according to collected ammonia nitrogen concentration signal with setting concentration value, root
The frequency converter is controlled according to comparison result and issues corresponding operating instruction, to control the unlatching number of units or unlatching of the aerator
Frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821431585.2U CN209039151U (en) | 2018-08-31 | 2018-08-31 | The automatic regulating system of sludge solid-liquid separator and biochemical reaction tank oxygen demand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821431585.2U CN209039151U (en) | 2018-08-31 | 2018-08-31 | The automatic regulating system of sludge solid-liquid separator and biochemical reaction tank oxygen demand |
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| Publication Number | Publication Date |
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| CN209039151U true CN209039151U (en) | 2019-06-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052638A (en) * | 2018-08-31 | 2018-12-21 | 浦华控股有限公司 | The automatic regulating system of sludge solid-liquid separator and biochemical reaction tank oxygen demand |
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2018
- 2018-08-31 CN CN201821431585.2U patent/CN209039151U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052638A (en) * | 2018-08-31 | 2018-12-21 | 浦华控股有限公司 | The automatic regulating system of sludge solid-liquid separator and biochemical reaction tank oxygen demand |
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