CN106745710B - Reinforced sludge aeration device - Google Patents
Reinforced sludge aeration device Download PDFInfo
- Publication number
- CN106745710B CN106745710B CN201710089838.6A CN201710089838A CN106745710B CN 106745710 B CN106745710 B CN 106745710B CN 201710089838 A CN201710089838 A CN 201710089838A CN 106745710 B CN106745710 B CN 106745710B
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- Prior art keywords
- aeration
- cover
- water inlet
- inlet pipe
- pipe
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention relates to a reinforced sludge aeration device, which comprises an aeration tank and an aeration head, and is characterized by also comprising a water inlet pipe, an aeration cover, a water outlet pipe and a sludge return pipe, wherein the water inlet pipe is arranged on the side wall of the upper end of the aeration tank, is L-shaped and consists of a horizontal section and a vertical section, the vertical section is positioned in the aeration tank, the aeration cover is sleeved on the vertical section of the water inlet pipe, an air exhaust hole is arranged at the center of the top of the aeration cover, and the cover surface of the aeration cover is uniformly provided with at least two rows of small holes for exhaust water mixtures with the same size along the circumferential direction; the aeration cover can slide up and down on the vertical end of the water inlet pipe; the other side of the water inlet pipe is provided with a water outlet pipe; the aeration head is arranged at the bottom of the aeration tank close to the center, and the bottom end of the aeration tank is connected with a sludge return pipe. The invention improves the trace of the mixed liquid in the aeration tank by arranging the conical aeration cover with the small holes, thereby greatly improving the aeration condition of the sludge, increasing the utilization rate of oxygen, saving the energy consumption of aeration, and having simple structure, convenient installation, low cost and high efficiency.
Description
Technical Field
The invention relates to a reinforced sludge aeration device, and belongs to the field of sewage treatment.
Background
In a laboratory, based on a traditional sludge aeration system with a single aeration head, the bottom of an aeration tank is often designed into an inverted cone, and sludge is attached to the surface of the cone around a backflow pipe orifice due to the pressure of water above the sludge. A large amount of mud runs off through the outlet pipe, and some mud then is detained at the aeration tank bottom, and aeration tank mud aeration situation often does not reach the experiment and predetermines the level, and aeration tank bottom cone surface mud piles up simultaneously, causes the sewage treatment effect not good, wastes a large amount of energy simultaneously.
Disclosure of Invention
Aiming at overcoming the defects of the existing sludge aeration system and solving the problems of large sludge loss and sludge accumulation on the surface of a cone at the bottom of an aeration tank in the sewage treatment process, the invention provides a reinforced sludge aeration device.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a reinforced sludge aeration device comprises an aeration tank, an aeration head, a water inlet pipe, an aeration cover, a water outlet pipe and a sludge return pipe, wherein the water inlet pipe is arranged on the side wall of the upper end of the aeration tank, is L-shaped and consists of a horizontal section and a vertical section, the vertical section is positioned in the aeration tank, the aeration cover is sleeved on the vertical section of the water inlet pipe, an air exhaust hole is formed in the center of the top of the aeration cover, and at least two rows of small holes with the same size for exhaust water mixture are uniformly formed in the cover surface of the aeration cover along the circumferential direction; the aeration cover can slide up and down on the vertical end of the water inlet pipe; the other side of the water inlet pipe is provided with a water outlet pipe; the aeration head is arranged at the bottom of the aeration tank close to the central position, and the bottom end of the aeration tank is connected with a sludge return pipe.
Furthermore, the aeration cover is an inverted funnel structure, and the plane projection area of the aeration cover is about one third to one half of the plane projection area of the aeration tank.
Furthermore, the tail end of the vertical section of the water inlet pipe is provided with an anti-drop section for preventing the aeration cover from dropping.
Further, the anti-slip joint is a protrusion or a pin.
Furthermore, the upper end surface of the water outlet pipe is lower than the lower end surface of the water inlet pipe.
Furthermore, the water inlet pipe is a plastic pipe, a glass pipe, an acrylic pipe or a PVC pipe.
Further, the aeration cover is made of plastic or glass with the density higher than that of water.
The invention has the following beneficial effects and advantages:
1. the small holes are arranged on the cover surface of the aeration cover, the trace of mixed liquid in the aeration tank is improved, the sludge aeration condition is further greatly improved, and meanwhile, the anti-drop joint is arranged at the tail end of the water inlet pipe to prevent the aeration cover from being separated from the water inlet pipe.
2. By adopting the structure of the invention, the loss of sludge is reduced, and the sludge accumulation on the surface of the cone at the bottom of the aeration tank is reduced.
3. The invention can increase the utilization rate of oxygen, save the energy consumption of aeration, and has simple structure, convenient installation, low cost and high efficiency.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
FIG. 3 is a mixed liquor trace diagram of the present invention.
In the figure: 1. a water inlet pipe, 2 a water outlet pipe, 3 an aeration cover, 4 a small hole on the surface of the aeration cover, 5 a small hole on the top of the aeration cover, 6, an aeration tank, 7, an aeration head, 8, a sludge return pipe, 9, a mixed liquid trace line and 10, a drop-proof joint.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: as shown in figure 1, the reinforced sludge aeration device comprises an aeration tank 6, an aeration head 7, a water inlet pipe 1, an aeration cover 3, a water outlet pipe 2 and a sludge return pipe 8, wherein the bottom of the aeration tank 6 is an inverted cone, the aeration head 7 is arranged at the bottom of the aeration tank and close to the central position, and the sludge return pipe 8 is arranged at the central position of the bottom of the aeration tank 7. The side wall of the upper end of the aeration tank is provided with a water inlet pipe 1, the water inlet pipe 1 is L-shaped and consists of a horizontal section and a vertical section, the vertical section is positioned in the aeration tank 6, the vertical section of the water inlet pipe is sleeved with an aeration cover 3, and the aeration cover 3 can slide up and down on the vertical end of the water inlet pipe 1; the end of the water inlet pipe 1 is provided with an anti-drop joint 10, the anti-drop joint 10 is a bulge or a pin so that the anti-aeration cover 3 drops when aeration stops, the center of the top of the aeration cover 3 is provided with an air exhaust hole, and the surface of the aeration cover 3 is uniformly provided with two rows of small holes with the same size along the circumferential direction. The other side of the water inlet pipe is provided with a water outlet pipe 2, and the upper end surface of the water outlet pipe 2 is lower than the lower end surface of the water inlet pipe 1. The water inlet pipe 1 is a plastic pipe, a glass pipe, an acrylic pipe or a PVC pipe; the aeration cover 3 is made of plastic or glass, the density is slightly larger than that of water, and holes are conveniently formed, so that the effect of the invention is achieved.
Two rows of aeration cover surface small holes 4 with the same size are uniformly formed in the cover surface of the aeration cover 3 shown in FIG. 2 along the circumferential direction, and one small hole 5 is formed in the top of the aeration cover; the aeration cover 3 is an inverted funnel structure, and the plane projection area of the aeration cover is about one half of the plane projection area of the aeration tank.
The mixed liquid trace 9 in the aeration tank 6 shown in fig. 3 is turbulent and is distributed approximately uniformly in the aeration tank 6. The water inlet pipe 1 is a plastic pipe, a glass pipe, an acrylic pipe or a PVC pipe, and the density of the pipe is higher than that of water.
Example 2: the difference from the embodiment 1 is that the surface of the aeration cover is uniformly provided with three rows of aeration cover surface small holes 4 with the same size along the circumferential direction, and one aeration cover top small hole 5 is provided; the aeration cover 3 is an inverted funnel structure, and the plane projection area of the aeration cover is about one third of the plane projection area of the aeration tank.
Example 3: the difference between the aeration cover and the embodiment 1 and 2 is that the surface of the aeration cover 3 is uniformly provided with a plurality of rows of aeration cover surface small holes 4 with the same size along the circumferential direction, and one aeration cover top small hole 5 is provided; the aeration cover 3 is an inverted funnel structure, and the plane projection area of the aeration cover is about one half of the plane projection area of the aeration tank.
In the working process of the invention, as shown in figure 3, water is fed through a water inlet pipe 1 of an aeration tank 6, and a water outlet 2 is arranged on the wall of the aeration tank 6. And starting the aeration device, uniformly bubbling the bubbles by the aeration head 7, making the mixed liquid trace 9 in the middle of the aeration tank 6 flow downwards, making the mixed liquid trace 9 upwards when the mixed liquid reaches the bottom of the tank, making a part of gas-liquid mixture reaching the aeration cover 3 flow downwards along with the middle inflow water flow after passing through the small holes 4 on the surface of the aeration cover, and repeating the steps in such a way. The mixed liquid reaches the bottom of the tank and can stir the sludge sinking to the bottom of the tank. The trace of the mixed liquid in the aeration tank is improved, and the aeration condition of the sludge is greatly improved. The air gathered at the top of the aeration hood 3 is discharged through the small holes 5 at the top of the aeration hood. When the aeration stops, the aeration cover 3 slowly slides to the tail end of the water inlet pipe 1, and the sludge on the surface of the aeration cover 3 is not accumulated in the sliding process.
Claims (5)
1. A reinforced sludge aeration device comprises an aeration tank and an aeration head, and is characterized by further comprising a water inlet pipe, an aeration cover, a water outlet pipe and a sludge return pipe, wherein the water inlet pipe is arranged on the side wall of the upper end of the aeration tank, is L-shaped and consists of a horizontal section and a vertical section, the vertical section is positioned in the aeration tank, the aeration cover is sleeved on the vertical section of the water inlet pipe, an air exhaust hole is formed in the center of the top of the aeration cover, and at least two rows of small holes for exhaust water mixtures with the same size are uniformly formed in the cover surface of the aeration cover along the circumferential direction; the aeration cover can slide up and down on the vertical end of the water inlet pipe; the other side of the water inlet pipe is provided with a water outlet pipe; the aeration head is arranged at the bottom of the aeration tank close to the center, and the bottom end of the aeration tank is connected with a sludge return pipe;
the aeration cover is of an inverted funnel structure, and the plane projection area of the aeration cover is between one third and one half of the plane projection area of the aeration tank;
the tail end of the vertical section of the water inlet pipe is provided with an anti-drop section for preventing the aeration cover from dropping.
2. The enhanced sludge aeration apparatus of claim 1, wherein the anti-drop section is a protrusion or a pin.
3. The apparatus for enhancing sludge aeration according to claim 1, wherein the upper end surface of the water outlet pipe is lower than the lower end surface of the water inlet pipe.
4. The enhanced sludge aeration apparatus of claim 1 or 3, wherein the water inlet pipe is a plastic pipe or a glass pipe.
5. The enhanced sludge aeration apparatus of claim 1, wherein the aeration hood is plastic or glass having a density greater than water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089838.6A CN106745710B (en) | 2017-02-20 | 2017-02-20 | Reinforced sludge aeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089838.6A CN106745710B (en) | 2017-02-20 | 2017-02-20 | Reinforced sludge aeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106745710A CN106745710A (en) | 2017-05-31 |
| CN106745710B true CN106745710B (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710089838.6A Active CN106745710B (en) | 2017-02-20 | 2017-02-20 | Reinforced sludge aeration device |
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| CN (1) | CN106745710B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108178287B (en) * | 2017-12-19 | 2021-07-27 | 海环科技集团股份有限公司 | Aeration cover of aerobic tank and preparation method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403494Y (en) * | 1999-12-09 | 2000-11-01 | 中国科学院化工冶金研究所 | Air lift air stirring reactor |
| JP4070556B2 (en) * | 2002-09-20 | 2008-04-02 | 三洋電機株式会社 | Air flow path switching device and water treatment system having the same |
| CN101251024B (en) * | 2008-04-08 | 2010-09-15 | 中国矿业大学 | Foam generator for dedusting coal mine |
| CN102583725B (en) * | 2012-01-10 | 2013-11-13 | 林卫红 | Anaerobic reactor for treating grease and dross |
| KR101306145B1 (en) * | 2012-03-07 | 2013-09-09 | 한세구 | Aeration type submersible mixer |
| CN103708657B (en) * | 2013-08-07 | 2015-06-03 | 煤科集团杭州环保研究院有限公司 | Deep oxidation treatment method and apparatus for difficultly-degraded organic chemical industry wastewater |
| CN206544936U (en) * | 2017-02-20 | 2017-10-10 | 沈阳建筑大学建筑设计研究院 | A kind of reinforcement sludge aerator |
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- 2017-02-20 CN CN201710089838.6A patent/CN106745710B/en active Active
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Address after: 110016A, No. 9-10, Jianyuan Street, Shenhe District, Shenyang City, Liaoning Province Applicant after: Shenyang Architecture University Design Group Co.,Ltd. Address before: 110016A, No. 9-10, Jianyuan Street, Shenhe District, Shenyang City, Liaoning Province Applicant before: SHENYANG JIANZHU University ARCHITECTURE DESIGNING INSTITUTE |
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