CN209411911U - Multi-stage aeration pond - Google Patents
Multi-stage aeration pond Download PDFInfo
- Publication number
- CN209411911U CN209411911U CN201920009069.9U CN201920009069U CN209411911U CN 209411911 U CN209411911 U CN 209411911U CN 201920009069 U CN201920009069 U CN 201920009069U CN 209411911 U CN209411911 U CN 209411911U
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- Prior art keywords
- aeration
- aeration tank
- water outlet
- tank
- water
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- 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
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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
The utility model relates to a kind of multi-stage aeration ponds, it is related to technical field of sewage treatment equipment, aim to solve the problem that its aeration means is single, and aerator layout is simple, cause the aeration effect of aeration tank weak, to keep it lower to the treatment effeciency of sewage, it includes pond body and several aeration tubes, multiple aeration tanks of stepped distribution there are three being opened up in pond body, the water inlet of aeration tank is located at the top of aeration tank, the water outlet of aeration tank is located at aeration bottom of pond portion, the water outlet of the aeration tank of high step is the water inlet of aeration tank described in low step, and the water outlet and water inlet of aeration tank are located at aeration tank both ends, aeration tube both ends are connected with rotating device, and agitating device in parallel is connected in aeration tube two sides, water outlet and water inlet are respectively arranged with valve, sewage can be passed through behind aeration tank to it by the utility model It carries out, the aeration repeatedly and being classified is carried out to it, be able to promote aeration effect, to promote its treatment effeciency to sewage.
Description
Technical field
The utility model relates to technical field of sewage treatment equipment, more particularly, to a kind of multi-stage aeration pond.
Background technique
Aeration is a kind of means for contacting air strongly with water, its object is to which the oxygen in air is dissolved in the water,
Or gas unwanted in water and volatile materials are banished in air.In other words, it is promoted between gas and liquid
A kind of means of mass exchange.Aeration tank is the structures that sewage treatment is carried out using activated sludge process.It is provided in pond certain dirty
Water retention time meets the mixing condition that oxygen amount and sewage required for aerobic microbiological come into full contact with activated sludge.It exposes
Gas pond is mainly made of three pond body, aerating system and intake-outlet parts.Pond body is generally built up with armored concrete, planar shaped
Shape has rectangle, rectangular and round etc.；Aeration is a kind of means for contacting air strongly with water, and its object is to will be in air
Oxygen be dissolved in the water, existing aeration mode mainly has two major classes, mechanical aeration and a blast aeration, however existing aeration
Pond, often aeration structure is single, is aerated inefficiency, it is difficult to meet the growing sewage treatment demand of people.
A kind of aeration tank as disclosed in the Chinese patent of Publication No. CN107879463A, including pond body, several aeration tubes
With a pair of of driving assembly；It is offered on aeration tube and is fixedly connected with several cricoid pressures in several solarization air caps and aeration pipe outer wall
Mud plate；The two sides of pond body inner wall offer the circular accommodation groove being connected to external air source；Driving assembly includes motor and driving
Plate, driving plate is in the form of annular discs and is placed in the accommodation groove, the both ends of aeration tube be respectively fixedly connected in driving plate and
It is connected with accommodation groove, motor is fixedly connected in pond body and for driving driving plate to do the rotary motion around its own axle center；
The present invention can effectively avoid the problem of aeration hole plug is caused because of sludgd deposition, and the sewage treatment effect of aeration tank is effectively ensured
Fruit and treatment effeciency.
But above-mentioned technology has the following deficiencies: that its aeration means is single, and aerator layout is simple, causes to expose
The aeration effect in gas pond is weak, to keep it lower to the treatment effeciency of sewage.
Utility model content
The purpose of the utility model is to provide a kind of multi-stage aeration ponds, and sewage is passed through behind aeration tank and is carried out to it, to it
The aeration repeatedly and being classified is carried out, is able to promote aeration effect, to promote its treatment effeciency to sewage.
The above-mentioned purpose of the utility model has the technical scheme that a kind of multi-stage aeration pond, including
Pond body and several aeration tubes, the pond body include multiple aeration tanks of stepped distribution, are equipped at the top of the aeration tank into water
Mouthful, the aeration bottom of pond portion is equipped with water outlet, the water outlet of the aeration tank and the entering for aeration tank described in low step of Gao Taijie
Water-supply-pipe is connected between the mouth of a river, and the water outlet of the aeration tank and water inlet are located at aeration tank both ends, the exposure
Tracheae both ends are connected with rotating device, and are provided with and its axial parallel agitating device, the stirring dress around aeration tube axle center
It sets and is connect with the rotating device, the water outlet and water inlet are respectively arranged with valve.
Implement above-mentioned technical proposal, sewage is discharged into multiple aeration tanks of stepped by water inlet, sewage is first
It is passed through in the aeration tank of top layer, while aeration wherein, aeration tube and the agitating device around aeration tube setting exist
Sewage is stirred under the drive of rotating device, and its agitating device can smash the bubble manufactured by aeration tube, make
Air carries out more gas-liquids with sewage and exchanges, and the accumulation of impurities in sewage, at the top of the water surface, the sewage of bottom is opposite
Completely, after top layer aeration tank runs a period of time, outlet valve is opened, the water of bottom relative clean to below
Aeration tank discharge carry out secondary aeration, similarly carry out the aeration of third time again, to improve aeration effect, promoted
Its water treatment efficiency.
The utility model is further arranged to: the rotating device includes rotary electric machine and rotation axis, in the aeration tank
Two sides offer accommodating chamber, the rotary electric machine is installed in accommodating chamber, and the rotation axis is arranged in the side wall of aeration tank,
And it is connect with the aeration tube and agitating device.
Implement above-mentioned technical proposal, after being passed through sewage in aeration tank by water inlet, opening aeration tube starts it
Operation, then rotary electric machine is opened, it drives aeration tube and agitating device to rotate by the rotation of its rotation axis, sewage is stirred
It mixes, while agitating device smashes bubble manufactured by aeration tube, enables sewage to carry out more gas-liquids with air and exchange,
To promote its water treatment efficiency.
The utility model is further arranged to: the agitating device includes multiple agitating paddles and connecting rod, the agitating paddle
Length direction and aeration tube it is axial parallel, multiple agitating paddle circumference array are in the aeration tube border, the stirring
Paddle both ends pass through connecting rod and the rotation axis connection.
Implement above-mentioned technical proposal, after opening rotary electric machine, is stirred while rotation axis rotates by connecting rod drive
The axis that paddle is mixed around aeration tube is rotated, and is stirred to sewage, while agitating device beats bubble manufactured by aeration tube
It is broken, enable sewage to carry out more gas-liquids with air and exchange, to promote its water treatment efficiency.
The utility model is further arranged to: the agitating paddle includes mobile jib and connect with mobile jib and outwardly extending paddle
Leaf, the blade is an arc panel, and the bending direction of the blade is identical as the rotation direction of rotation axis.
Implement above-mentioned technical proposal, by setting bending direction arc identical with the rotation direction of rotation axis for paddle
Plate, when agitating paddle is rotated and is stirred around aeration tube, while the bubble that agitating paddle can manufacture its aeration tube is smashed,
Paddle can take again after water is taken away the water surface in rotation, more gas-liquid exchanges be provided, to promote its water process
Efficiency.
The utility model is further arranged to: where the aeration tube is respectively positioned on immediately below the water inlet locations of aeration tank,
Scraper plate is equipped at the top of the aeration tank, the scraper plate is parallel to aeration tube and is located at aeration tube and agitating device close to water outlet
Side is respectively connected with carriage in the board ends of scraping, and length direction of the carriage along the aeration tank is arranged,
The aeration tank is equipped with collection device close to one end of water outlet.
Implement above-mentioned technical proposal, sewage is just handled by aeration tube and agitating device first when carrying out aeration tank,
Simultaneously during sewage be aerated in aeration tank, scraper plate does reciprocal sliding along pond body top, to being produced in aeration process
Raw impurity carries out clear stream and collects, to promote its water treatment efficiency.
The utility model is further arranged to: the carriage include the sliding rail installed on the aeration tank side wall and
The linear motor installed on the slide rail, the board ends of scraping are connect with linear motor respectively.
Implement above-mentioned technical proposal, the straight-line electric installed by the sliding rail installed on the side wall of aeration tank and on the slide rail
Machine drives length direction of the solid plate along aeration tank to do reciprocal linear motion, carries out to impurity generated in aeration process clear
Stream and collection, to promote its water treatment efficiency.
The utility model is further arranged to: the collection device includes in aeration tank far from the outer of water inlet one end side wall
What side was equipped with collect canal, the aeration tank and collect the baffle of the shared side wall top installing of canal and in the scraper plate towards baffle
The trip rod of side installing, the baffle include being fixedly connected on aeration tank side wall and the door type frame extended straight up and installing
Movable plate in door type frame, the movable plate top and the top arm of door type frame are rotatablely connected by wind spring, in the movable plate
Bottom is equipped with the seal gasket abutted with the top of aeration tank side wall.
Implement above-mentioned technical proposal, during scraper plate does reciprocal linear motion, when it is moved to collection device,
The trip rod installed thereon hits movable plate, so that movable plate deflects, the impurity at the top of the water surface exists when close to baffle
During scraper plate moves, it is pushed into and collects in canal, in scraper plate transport power collection device, the effect of movable plate wind spring at the top of it
Go down to spring back and it is closed by seal gasket with aeration tank with the side wall top that canal is connect is collected, facilitates scraper plate pair
Impurity is collected, to promote its water treatment efficiency.
The utility model is further arranged to: being equipped with filter device in the water outlet.
Implement above-mentioned technical proposal, by the filter device installed in water outlet, can by the sewage in aeration tank into
During row discharge, the discharge of impurity is prevented, to promote its water treatment efficiency.
In conclusion the advantageous effects of the utility model are as follows:
1. sewage is discharged into multiple aeration tanks of stepped by water inlet, sewage passes first into the aeration of top layer
Chi Zhong, while aeration wherein, aeration tube and around aeration tube setting agitating device under the drive of rotating device
Sewage is stirred, and its agitating device can smash the bubble manufactured by aeration tube, carries out air and sewage more
More gas-liquid exchanges, and the accumulation of impurities in sewage, at the top of the water surface, the sewage relative clean of bottom is aerated in top layer
After pond runs a period of time, outlet valve is opened, the water of bottom relative clean is discharged to aeration tank below and is carried out
Secondary aeration, the aeration for similarly carrying out third time again promote its water treatment efficiency to improve aeration effect；
2. by setting bending direction arc panel identical with the rotation direction of rotation axis for paddle, in agitating paddle around exposure
When tracheae is rotated and stirred, while the bubble that agitating paddle can manufacture its aeration tube is smashed, paddle can rotated
When, it is taken again after water is taken away the water surface, more gas-liquid exchanges is provided, to promote its water treatment efficiency；
3. during scraper plate does reciprocal linear motion, when it is moved to collection device, the shock installed thereon
Bar hits movable plate when close to baffle, so that movable plate deflects, the process that the impurity at the top of the water surface is moved in scraper plate
In, be pushed into collect canal in, in scraper plate transport power collection device, movable plate gone under the action of wind spring at the top of it rebound and with
It is closed by seal gasket with the side wall top that canal is connect is collected in aeration tank, and scraper plate is facilitated to be collected impurity,
To promote its water treatment efficiency.
Detailed description of the invention
Fig. 1 is the overall structure diagram in multi-stage aeration pond provided by the utility model.
Fig. 2 is that the aeration tube, rotating device and agitating device overall structure in multi-stage aeration pond provided by the utility model show
It is intended to.
Fig. 3 is the overall structure diagram of the aeration tank in multi-stage aeration pond provided by the utility model.
In figure: 1, pond body；2, aeration tube；3, aeration tank；31, water inlet；32, water outlet；33, water-supply-pipe；34, valve 4,
Rotating device；41, rotary electric machine；42, rotation axis；43, accommodating chamber；5, agitating device；51, agitating paddle；52, connecting rod；53, main
Bar；54, blade；6, scraper plate；61, trip rod；7, carriage；71, sliding rail；72, linear motor；8, collection device；81, it collects
Canal；82, baffle；83, door type frame；84, movable plate；85, seal gasket；9, filter device.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Fig.1, Fig. 2, is a kind of multi-stage aeration pond 3 disclosed by the utility model, including pond body 1 and multiple aeration tubes 2,
Three aeration tanks 3 that pond body 1 opens up as stepped distribution, the water inlet 31 of aeration tank 3 are assembled on the top of aeration tank 3,
The water outlet 32 of aeration tank 3 is assembled on the bottom of aeration tank 3, and the water outlet 32 of the aeration tank 3 of Gao Taijie is adjacent thereto low
Water-supply-pipe 33 is connected between the water inlet 31 of step aeration tank 3, and water outlet 32 and water inlet 31 are located at aeration tank 3
Both ends, valve is mounted in water inlet 31 and water outlet 32, while filter device being installed in water outlet 32, in aeration tank
Aeration tube 2 is installed immediately below 3 water inlet, 31 position, is offered accommodating chamber in 2 one end of aeration tube, is installed in accommodating chamber
Rotating device, rotating device include the rotation axis of rotary electric machine and rotary electric machine, and rotation axis, which is arranged in the side wall of aeration tank 3, stretches
Enter in aeration tank 3 and connect with aeration tube 2, is equipped with agitating device around aeration tube 2, agitating device includes multiple agitating paddles and connection
The length direction of bar, agitating paddle is parallel with 2 axis of aeration tube, and multiple agitating paddles are around 2 circumference array of aeration tube, the both ends of agitating paddle
By connecting rod and rotation axis connection, agitating paddle includes mobile jib and blade, and blade is set as turn of bending direction and rotation axis
The dynamic identical arc panel in direction；Sewage is discharged into multiple aeration tanks 3 of stepped by water inlet 31, sewage passes first into
In the aeration tank 3 of top layer, aeration tube 2 is opened, while it is aerated, then opens rotary electric machine, is opening rotation electricity
After machine, drive agitating paddle to be rotated around the axis of aeration tube 2 by connecting rod while rotation axis rotates, agitating paddle around
When aeration tube 2 is rotated and stirred, while the bubble that agitating paddle can manufacture its aeration tube 2 is smashed, paddle can be
It when rotation, is taken again after water is taken away the water surface, provides more gas-liquid exchanges, and the accumulation of impurities in sewage is in the water surface
Top, the sewage relative clean of bottom open 32 valve of water outlet after top layer aeration tank 3 runs a period of time,
The water of bottom relative clean carries out secondary aeration to the discharge of aeration tank 3 below, similarly carries out the exposure of third time again
Gas promotes its water treatment efficiency to improve aeration effect.
A large amount of impurity is had during being aerated sewage to float on the water surface, influences what sewage was purified
Efficiency, therefore, as shown in figure 3, be installed with scraper plate at the top of aeration tank 3, scraper plate it is parallel with aeration tube 2 and be located at aeration tube 2 and
Agitating device is connected with carriage close to 32 side of water outlet, at the both ends of scraper plate, and carriage is included in 3 side wall of aeration tank
The sliding rail of upper installing and the linear motor installed on the slide rail, the both ends of scraper plate are connect with linear motor, close in aeration tank 3
One end of water outlet 32 offers collection device, and collection device includes the collection opened up in aeration tank 3 close to 32 side of water outlet
Canal, aeration tank 3 with collect the baffle that the side wall top that connect of canal is installed and the trip rod installed in scraper plate towards baffle side,
Baffle includes being fixedly connected on 3 side wall of aeration tank and vertically set door type frame and the movable plate installed in door type frame,
The top of movable plate and the roof of gate plate are rotatablely connected by wind spring, and bottom is abutted with 3 top side wall of aeration tank, and at it
Abut out installation Europe seal gasket；Sewage is just handled by aeration tube 2 and agitating device, together first when carrying out aeration tank 3
When sewage be aerated in aeration tank 3 during, scraper plate in the linear motor that its both ends is installed under the drive that sliding rail moves,
Reciprocal linear motion is done at the top of pond body 1, clear stream is carried out to impurity generated in aeration process and is collected, and is done in scraper plate past
During multiple linear motion, when it is moved to collection device, the trip rod installed thereon hits and lives when close to baffle
Movable plate, so that movable plate deflects, the impurity at the top of the water surface is pushed into and collects in canal during scraper plate moves,
When scraper plate transport power collection device, movable plate goes rebound at the top of it and connect with aeration tank 3 with canal is collected under the action of wind spring
Side wall top it is closed by seal gasket, facilitate scraper plate to be collected impurity, to promote its water process effect
Rate.
The course of work (principle): sewage is discharged into multiple aeration tanks 3 of stepped by water inlet 31, sewage is first
It is passed through in the aeration tank 3 of top layer, opens aeration tube 2, while it is aerated, then open rotary electric machine, turn opening
After dynamic motor, drives agitating paddle to be rotated around the axis of aeration tube 2 by connecting rod while rotation axis rotates, stirring
When paddle is rotated and is stirred around aeration tube 2, while the bubble that agitating paddle can manufacture its aeration tube 2 is smashed, paddle energy
It is enough to be taken again after water is taken away the water surface in rotation, provide more gas-liquids exchanges, and the accumulation of impurities in sewage in
At the top of the water surface, the sewage relative clean of bottom, scraper plate in the linear motor that its both ends is installed under the drive that sliding rail moves, edge
Reciprocal linear motion is done at the top of pond body 1, clear stream is carried out to impurity generated in aeration process and is collected, and is done back and forth in scraper plate
Linear motion during, when it is moved to collection device, the trip rod installed thereon is when close to baffle, shock activity
Plate, so that movable plate deflects, the impurity at the top of the water surface is pushed into and collects in canal, scraping during scraper plate moves
When plate transport power collection device, movable plate goes at the top of it rebound and connect with aeration tank 3 with collection canal under the action of wind spring
It is closed by seal gasket in side wall top, and scraper plate is facilitated to be collected impurity, runs one in top layer aeration tank 3
After the section time, 32 valve of water outlet is opened, the water of bottom relative clean is carried out second to the discharge of aeration tank 3 below
Aeration, similarly again carry out third time aeration.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (8)
1. a kind of multi-stage aeration pond, including pond body (1) and several aeration tubes (2), it is characterised in that: the pond body (1) includes into
Multiple aeration tanks (3) of step-like distribution, aeration tank (3) top are equipped with water inlet (31), and aeration tank (3) bottom is set
Have water outlet (32), the water inlet of aeration tank (3) described in the water outlet (32) and low step of the aeration tank (3) of Gao Taijie
(31) it is connected between water-supply-pipe (33), and the water outlet (32) of the aeration tank (3) and water inlet (31) are located at exposure
Gas pond (3) both ends, the aeration tube (2) both ends are connected with rotating device (4), and are provided with and its axis around aeration tube (2) axle center
To parallel agitating device (5), the agitating device (5) connect with the rotating device (4), the water outlet (32) and enters water
Mouth (31) is respectively arranged with valve (34).
2. multi-stage aeration pond according to claim 1, it is characterised in that: the rotating device (4) includes rotary electric machine
(41) and rotation axis (42) it, is offered accommodating chamber (43) in the two sides of the aeration tank (3), the rotary electric machine (41) is installed on
In accommodating chamber (43), the rotation axis (42) is arranged in the side wall of aeration tank (3), and with the aeration tube (2) and stirring
Device (5) connection.
3. multi-stage aeration pond according to claim 2, it is characterised in that: the agitating device (5) includes multiple agitating paddles
(51) and connecting rod (52), axial parallel, multiple agitating paddles of the length direction with aeration tube (2) of the agitating paddle (51)
(51) circumference array passes through connecting rod (52) and the rotation in the aeration tube (2) border, agitating paddle (51) both ends
Axis (42) connection.
4. multi-stage aeration pond according to claim 3, it is characterised in that: the agitating paddle (51) include mobile jib (53) and with
Mobile jib (53) connection and outwardly extending blade (54), the blade (54) are an arc panel, and the bending of the blade (54)
Direction is identical as the rotation direction of rotation axis (42).
5. multi-stage aeration pond according to claim 1, it is characterised in that: aeration tank where the aeration tube (2) is respectively positioned on
(3) immediately below water inlet (31) position, scraper plate (6) are equipped at the top of the aeration tank (3), the scraper plate (6) is parallel to exposure
Tracheae (2) and it is located at aeration tube (2) and agitating device (5) close to water outlet (32) side, is all connected at the scraper plate (6) both ends
Have carriage (7), length direction of the carriage (7) along the aeration tank (3) is arranged, and leans in the aeration tank (3)
One end of nearly water outlet (32) is equipped with collection device (8).
6. multi-stage aeration pond according to claim 5, it is characterised in that: the carriage (7) is included in the aeration
The sliding rail (71) installed on pond (3) side wall and the linear motor (72) installed on sliding rail (71), scraper plate (6) the both ends difference
It is connect with linear motor (72).
7. multi-stage aeration pond according to claim 5, it is characterised in that: the collection device (8) is included in aeration tank (3)
What collection canal (81), the aeration tank (3) and collection canal (81) that the outside far from water inlet (31) one end side wall is equipped with shared
The baffle (82) of side wall top installing and the trip rod (61) installed in the scraper plate (6) towards baffle (82) side, the gear
Plate (82) includes being fixedly connected on aeration tank (3) side wall and the door type frame (83) that extends straight up and being installed in door type frame (83)
In movable plate (84), the top arm at the top of the movable plate (84) with door type frame (83) is by wind spring rotation connection, in the work
Movable plate (84) bottom is equipped with the seal gasket (85) abutted with the top of aeration tank (3) side wall.
8. multi-stage aeration pond according to claim 1, it is characterised in that: be equipped with filter device in the water outlet (32)
(9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009069.9U CN209411911U (en) | 2019-01-03 | 2019-01-03 | Multi-stage aeration pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009069.9U CN209411911U (en) | 2019-01-03 | 2019-01-03 | Multi-stage aeration pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209411911U true CN209411911U (en) | 2019-09-20 |
Family
ID=67942531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920009069.9U Expired - Fee Related CN209411911U (en) | 2019-01-03 | 2019-01-03 | Multi-stage aeration pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209411911U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921985A (en) * | 2019-12-05 | 2020-03-27 | 湖南祥柏生态环保科技有限公司 | Sewage treatment device and process for grease extraction workshop of dead animal carcasses |
| CN114716036A (en) * | 2022-04-25 | 2022-07-08 | 江西清江建设发展有限公司 | Environment-friendly sewage treatment aeration device |
| CN114804337A (en) * | 2022-03-21 | 2022-07-29 | 陶涛 | Device for rapidly increasing oxygen content of aeration tank for blackening sludge in sewage treatment |
| CN114803221A (en) * | 2022-05-17 | 2022-07-29 | 上海大学 | Integrated wet garbage automatic collection storage |
-
2019
- 2019-01-03 CN CN201920009069.9U patent/CN209411911U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921985A (en) * | 2019-12-05 | 2020-03-27 | 湖南祥柏生态环保科技有限公司 | Sewage treatment device and process for grease extraction workshop of dead animal carcasses |
| CN114804337A (en) * | 2022-03-21 | 2022-07-29 | 陶涛 | Device for rapidly increasing oxygen content of aeration tank for blackening sludge in sewage treatment |
| CN114716036A (en) * | 2022-04-25 | 2022-07-08 | 江西清江建设发展有限公司 | Environment-friendly sewage treatment aeration device |
| CN114803221A (en) * | 2022-05-17 | 2022-07-29 | 上海大学 | Integrated wet garbage automatic collection storage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190920 Termination date: 20210103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |