CN114506983A - Abnormal backflow monomer shielding device for sludge treatment - Google Patents
Abnormal backflow monomer shielding device for sludge treatment Download PDFInfo
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- CN114506983A CN114506983A CN202111631377.3A CN202111631377A CN114506983A CN 114506983 A CN114506983 A CN 114506983A CN 202111631377 A CN202111631377 A CN 202111631377A CN 114506983 A CN114506983 A CN 114506983A
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- opening
- shielding
- sludge treatment
- pressure sensor
- aeration tank
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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
- C02F11/00—Treatment of sludge; Devices therefor
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/15—Treatment of sludge; Devices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves
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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
- C02F7/00—Aeration of stretches of water
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
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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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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
Abstract
The invention provides an abnormal backflow monomer shielding device for sludge treatment, which relates to the technical field of sludge treatment and comprises a secondary sedimentation tank, an aeration tank and a shielding cavity arranged between the secondary sedimentation tank and the aeration tank, wherein the shielding cavity is communicated with the secondary sedimentation tank through a first backflow pipe, the shielding cavity is communicated with the aeration tank through a second backflow pipe, a reduction device is arranged in the shielding cavity, a first opening and a second opening arranged above the first opening are arranged on the inner side wall of the shielding cavity, the first opening is communicated with the second backflow pipe through a first connecting pipe, and the second opening is connected with a pressure relief pipe. The invention has simple structure, adopts the structure of the shielding cavity, can effectively shield the sludge amount which is abnormally returned to the aeration tank while reducing the sludge amount in the shielding cavity, and protects the normal work and use of the aeration tank.
Description
Technical Field
The invention relates to the technical field of sludge treatment,
in particular, the invention relates to an abnormal backflow single body shielding device for sludge treatment.
Background
Sludge treatment (slurry treatment), namely, sludge is subjected to harmless processing processes such as concentration, regulation, dehydration, stabilization, drying or incineration and the like, and a large amount of sludge is inevitably generated in the process of collecting and disposing urban sewage, so that on one hand, the sludge contains a large amount of organic matters and nutrient elements, has agricultural resource value, and can be used for making bricks, biochemical fiber boards and ceramic granules, and on the other hand, the sludge also can contain a large amount of heavy metal substances, pathogens, ice toxicity microorganisms and a large amount of toxic organic matters, and the sludge needs to be treated.
In the sludge treatment process, the general sludge is subjected to sedimentation treatment by a primary sedimentation tank and a secondary sedimentation tank in sequence, part of sludge in the secondary sedimentation tank can also flow back to floccules containing various aerobic microorganism groups propagated in the aeration tank through a return pipe to obtain activated sludge, and most of the return pipes are provided with sludge reduction units, however, one aeration tank may be connected with return pipes of a plurality of secondary sedimentation tanks, and a large amount of gas (including biogas) may be generated in the secondary sedimentation tanks upon leakage of gas, resulting in a sudden increase in the amount of sludge return in the return pipes, however, the capacity of the aeration tank for treating the sludge is very low, and the increase of the flow rate of the return pipe of any secondary sedimentation tank affects the internal pressure safety of the aeration tank and the sludge reduction unit, and can cause equipment damage if the flow rate is serious, so that the treatment of abnormal return flow of the sludge treatment is necessary.
Disclosure of Invention
The invention aims to provide an abnormal backflow monomer shielding device which is simple in structure, adopts a shielding cavity structure, can effectively shield the amount of sludge which reaches an aeration tank from abnormal backflow while reducing the amount of sludge in the shielding cavity, and protects the sludge treatment used for normal work of the aeration tank.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the utility model provides an unusual backward flow monomer shield assembly of sludge treatment, include secondary sedimentation tank, aeration tank and set up in shielding chamber between secondary sedimentation tank and the aeration tank, shielding chamber through first back flow with secondary sedimentation tank intercommunication, shielding chamber through the second back flow with aeration tank intercommunication, the shielding intracavity is provided with decrement equipment, shielding intracavity lateral wall be provided with first opening and set up in the second opening of first opening top, first opening through first connecting pipe with second back flow intercommunication, the second opening is connected with the pressure release pipe.
Preferably, a first pressure sensor and a second pressure sensor are arranged on the inner side wall of the shielding cavity, the height of the first pressure sensor is the same as that of the first opening, and the height of the second pressure sensor is the same as that of the second opening.
Preferably, the pressure relief pipe is provided with a third valve electrically connected to the second pressure sensor.
Preferably, a third opening is provided between the first opening and the second opening, the third opening is communicated with the second return pipe through a second connecting pipe, and a third pressure sensor having the same height as the third opening is provided on an inner side wall of the shield cavity.
Preferably, the number of the third opening and the number of the third pressure sensor are at least one.
Preferably, the second return pipe is provided with a first valve electrically connected to the third pressure sensor, and the first valve is disposed at a side of a connection between the first connection pipe and the second return pipe, the side being close to the shielding cavity.
Preferably, the second return pipe is provided with a second valve electrically connected to the second pressure sensor, and the second valve is disposed at a side of a connection between the second connection pipe and the second return pipe, the side being close to the aeration tank.
Preferably, the number of the secondary sedimentation tank and the number of the first return pipes are at least one.
Preferably, the decrement device comprises an ultrasonic generator and a dosing bin.
Preferably, the connection point of the second return pipe and the shielding cavity is located at the bottom of the side wall of the shielding cavity.
Preferably, a signal generator is further arranged outside the shielding cavity.
The abnormal backflow monomer shielding device for sludge treatment has the beneficial effects that: simple structure adopts the structure in shielding chamber, when carrying out the mud decrement in the shielding intracavity, can effectively shield the mud volume that unusual backward flow reachd the aeration tank, and the protection aeration tank is normal work and is used.
Drawings
FIG. 1 is an overall schematic configuration diagram of an embodiment of an abnormal backflow single body shielding device for sludge treatment according to the present invention;
FIG. 2 is a schematic top view showing the overall structure of another embodiment of an abnormal backflow unit shielding apparatus for sludge treatment according to the present invention;
in the figure: 1. the device comprises a shielding cavity, 11, a first opening, 111, a first connecting pipe, 12, a second opening, 121, a pressure relief pipe, 122, a third valve, 13, a third opening, 131, a second connecting pipe, 14, a first pressure sensor, 15, a second pressure sensor, 16, a third pressure sensor, 17, decrement equipment, 18, a signal generator, 2, a secondary sedimentation tank, 21, a first return pipe, 3, an aeration tank, 31, a second return pipe, 311, a first valve, 312 and a second valve.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and steps set forth in these embodiments and steps do not limit the scope of the invention unless specifically stated otherwise.
Meanwhile, it should be understood that the flows in the drawings are not merely performed individually for convenience of description, but a plurality of steps are performed alternately with each other.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
The first embodiment is as follows: as shown in fig. 1 and 2, which are only one embodiment of the present invention, an abnormal backflow single body shielding device for sludge treatment includes a secondary sedimentation tank 2, an aeration tank 3, and a shielding chamber 1 disposed between the secondary sedimentation tank 2 and the aeration tank 3, wherein the shielding chamber 1 is communicated with the secondary sedimentation tank 2 through a first backflow pipe 21, the shielding chamber 1 is communicated with the aeration tank 3 through a second backflow pipe 31, a decrement device 17 is disposed in the shielding chamber 1, a first opening 11 and a second opening 12 disposed above the first opening 11 are disposed on an inner side wall of the shielding chamber 1, the first opening 11 is communicated with the second backflow pipe 31 through a first connecting pipe 111, and a pressure relief pipe 121 is connected to the second opening 12.
The sludge in the secondary sedimentation tank 2 flows into the shielding cavity 1 through the first return pipe 21, and finally flows into the aeration tank 3 from the second return pipe 31 at the lower side of the shielding cavity 1 after being subjected to sludge reduction through the reduction equipment 17 in the shielding cavity 1.
In this embodiment, a first pressure sensor 14 and a second pressure sensor 15 are disposed on the inner side wall of the shielding cavity 1, the height of the first pressure sensor 14 is the same as the height of the first opening 11, and the height of the second pressure sensor 15 is the same as the height of the second opening 12.
Of course, the pressure relief pipe 121 is provided with a third valve 122 electrically connected to the second pressure sensor 15.
A third opening 13 is provided between the first opening 11 and the second opening 12, the third opening 13 is communicated with the second return pipe 31 through a second connection pipe 131, and a third pressure sensor 16 having the same height as the third opening 13 is provided on the inner side wall of the shielding chamber 1.
Here, the first connection pipe 111 and the third connection pipe 131 have an inner diameter smaller than that of the second return pipe 31.
Of course, the second return pipe 31 is provided with a first valve 311 electrically connected to the third pressure sensor 16, and the first valve 311 is disposed at a side of a connection between the first connection pipe 121 and the second return pipe 31, which is close to the shielding chamber 1.
Similarly, the second return pipe 31 is provided with a second valve 312 electrically connected to the second pressure sensor 15, and the second valve 312 is disposed at a side of the connection between the second connection pipe 131 and the second return pipe 31, which is close to the aeration tank 3.
When the first pressure sensor 14 senses sludge (that is, the sludge submerges the first pressure sensor 14 in the shielding cavity 1), it is indicated that the speed of the sludge in the secondary sedimentation tank 2 flowing back into the shielding cavity 1 through the first return pipe 1 is greater than the outflow speed of the second return pipe 31 at this time, if there is no further abnormality in the following process, the normal operation still remains, preferably, the reduction device 17 is electrically connected with the first pressure sensor 14, and at this time, the reduction device 17 is turned on to reduce the sludge in the shielding cavity 1.
When the third pressure sensor 16 senses sludge (i.e., the sludge submerges the third pressure sensor 16 in the shielding chamber 1), it is indicated that the amount of sludge in the shielding chamber 1 is still increased under the operation of the reduction equipment 17 at this time, it can be primarily understood that backflow is abnormal, the backflow is not serious yet, at this time, the first valve 311 is closed, the abnormal backflow is prevented from completely flowing into the aeration tank 3, only the first connecting pipe 111 and the third connecting pipe 131 which are thin are refluxed into the aeration tank 3 through the second backflow pipe 31, and further observation in the shielding chamber 1 is ensured under the operation condition of the aeration tank 3.
When the second pressure sensor 15 senses the sludge (i.e. the sludge submerges the second pressure sensor 15 in the shielding chamber 1), it indicates that the backflow abnormality is serious, and at this time, the second valve 312 is closed, that is, the sludge in the shielding chamber 1 is no longer allowed to flow into the aeration tank 3 through the second backflow pipe 31, so as to ensure that the equipment in the aeration tank 3 is not damaged; at the same time, the third valve 122 is opened to discharge the abnormal pressure in the shield cavity 1 through the pressure relief pipe 121.
The abnormal backflow single body shielding device for sludge treatment has a simple structure, adopts a shielding cavity structure, can effectively shield the amount of sludge reaching an aeration tank from abnormal backflow while reducing the amount of sludge in the shielding cavity, and protects the aeration tank from normal working and use.
In the second embodiment, as shown in fig. 1 and 2, which are only one embodiment of the present invention, based on the first embodiment, in the abnormal backflow single body shielding device for sludge treatment according to the present invention, the number of the third openings 13 and the number of the third pressure sensors 16 are at least one, actually, the number of the third openings 13 and the number of the third pressure sensors 16 are the same, and the heights of the plurality of third openings 13 and the plurality of third pressure sensors 16 are the same, that is, each third opening 13 has one third pressure sensor 16 with the same height as the third opening.
Also, the number of the secondary sedimentation tanks 2 and the number of the first return pipes 21 are each at least one, that is, a plurality of secondary sedimentation tanks 2 and first return pipes 21 may be connected to one shield chamber 1.
Or, one secondary sedimentation tank 2, one first return pipe 21 and one shielding cavity 1 form a single shielding unit, and a plurality of single shielding units are arranged around the aeration tank 3.
The two modes can avoid the damage of the aeration tank 3 caused by the abnormal reflux of any one secondary sedimentation tank 2 in the plurality of secondary sedimentation tanks 2.
In addition, the decrement device 17 comprises an ultrasonic generator and a dosing bin, namely, the sludge decrement mode comprises ultrasonic decrement and chemical (by adding acid or alkali) decrement, and when the ultrasonic decrement mode is adopted, the decrement device 17 is an ultrasonic generator and is arranged at the bottom of the shielding cavity 1; when a chemical decrement mode is adopted, the decrement device 17 is a dosing bin and is arranged at the top of the shielding cavity 1.
Obviously, the connection position of the second return pipe 31 and the shielding cavity 1 is located at the bottom of the side wall of the shielding cavity 1, so that the returned sludge in the shielding cavity 1 can conveniently flow into the aeration tank 3.
Finally, the signal generator 18 electrically connected with the second pressure sensor 15 is further arranged outside the shielding cavity 1, only when the third valve 122 is opened, namely when sludge is stored in the shielding cavity 1 and submerges the second pressure sensor 15, the signal generator 18 gives an alarm, and the alarm content further contains information of all secondary sedimentation tanks 2 connected with the shielding cavity 1, so that the secondary sedimentation tanks 2 can be checked, the reason for abnormal backflow of the secondary sedimentation tanks 2 can be found, and potential safety hazards can be eliminated.
The abnormal backflow single body shielding device for sludge treatment has a simple structure, adopts a shielding cavity structure, can effectively shield the amount of sludge reaching an aeration tank from abnormal backflow while reducing the amount of sludge in the shielding cavity, and protects the aeration tank from normal working and use.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an unusual backward flow monomer shield assembly of sludge treatment which characterized in that: including secondary sedimentation tank (2), aeration tank (3) and set up in shielding chamber (1) between secondary sedimentation tank (2) and aeration tank (3), shielding chamber (1) through first back flow (21) with secondary sedimentation tank (2) intercommunication, shielding chamber (1) through second back flow (31) with aeration tank (3) intercommunication, be provided with decrement equipment (17) in shielding chamber (1), shielding chamber (1) inside wall be provided with first opening (11) and set up in second opening (12) of first opening (11) top, first opening (11) through first connecting pipe (111) with second back flow (31) intercommunication, second opening (12) are connected with pressure release pipe (121).
2. The abnormal backflow monomer shielding device for sludge treatment according to claim 1, characterized in that: the shielding cavity (1) inside wall is provided with first pressure sensor (14) and second pressure sensor (15), the height of first pressure sensor (14) with the height of first opening (11) is the same, the height of second pressure sensor (15) with the height of second opening (12) is the same.
3. The abnormal backflow monomer shielding device for sludge treatment according to claim 1, characterized in that: a third opening (13) is arranged between the first opening (11) and the second opening (12), the third opening (13) is communicated with the second return pipe (31) through a second connecting pipe (131), and a third pressure sensor (16) with the same height as the third opening (13) is arranged on the inner side wall of the shielding cavity (1).
4. The abnormal backflow monomer shielding device for sludge treatment according to claim 3, wherein: the number of the third opening (13) and the number of the third pressure sensor (16) are at least one.
5. The abnormal backflow monomer shielding device for sludge treatment according to claim 3, wherein: the second return pipe (31) is provided with a first valve (311) electrically connected with the third pressure sensor (16), and the first valve (311) is arranged on one side, close to the shielding cavity (1), of the joint of the first connecting pipe (121) and the second return pipe (31).
6. The abnormal backflow monomer shielding device for sludge treatment according to claim 3, wherein: the second return pipe (31) is provided with a second valve (312) electrically connected with the second pressure sensor (15), and the second valve (312) is arranged at one side of the joint of the second connecting pipe (131) and the second return pipe (31) close to the aeration tank (3).
7. The abnormal backflow monomer shielding device for sludge treatment according to claim 1, characterized in that: the number of the secondary sedimentation tank (2) and the number of the first return pipes (21) are at least one.
8. The abnormal backflow monomer shielding device for sludge treatment according to claim 1, characterized in that: the decrement equipment (17) comprises an ultrasonic generator and a dosing bin.
9. The abnormal backflow monomer shielding device for sludge treatment according to claim 1, characterized in that: the connection position of the second return pipe (31) and the shielding cavity (1) is positioned at the bottom of the side wall of the shielding cavity (1).
10. The abnormal backflow monomer shielding device for sludge treatment according to claim 1, characterized in that: and a signal generator (18) is also arranged outside the shielding cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631377.3A CN114506983B (en) | 2021-12-29 | 2021-12-29 | Abnormal reflux monomer shielding device for sludge treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631377.3A CN114506983B (en) | 2021-12-29 | 2021-12-29 | Abnormal reflux monomer shielding device for sludge treatment |
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| Publication Number | Publication Date |
|---|---|
| CN114506983A true CN114506983A (en) | 2022-05-17 |
| CN114506983B CN114506983B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111631377.3A Active CN114506983B (en) | 2021-12-29 | 2021-12-29 | Abnormal reflux monomer shielding device for sludge treatment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10113690A (en) * | 1996-10-11 | 1998-05-06 | Nippon Maintech Kk | Structure for communicating aeration tank with settling tank in sewage treating device by activated sludge |
| CN106227147A (en) * | 2016-08-31 | 2016-12-14 | 马占久 | Control system of sewage treatment plant |
| CN207418499U (en) * | 2017-06-29 | 2018-05-29 | 河北润德环境工程有限公司 | A kind of purification of waste water mechanism |
| CN210313892U (en) * | 2019-05-24 | 2020-04-14 | 广州华浩能源环保集团股份有限公司 | Sewage treatment system capable of realizing return sludge regeneration and in-situ sludge reduction simultaneously |
| CN112456755A (en) * | 2020-12-24 | 2021-03-09 | 华夏碧水环保科技有限公司 | Wastewater sludge reduction treatment system |
-
2021
- 2021-12-29 CN CN202111631377.3A patent/CN114506983B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10113690A (en) * | 1996-10-11 | 1998-05-06 | Nippon Maintech Kk | Structure for communicating aeration tank with settling tank in sewage treating device by activated sludge |
| CN106227147A (en) * | 2016-08-31 | 2016-12-14 | 马占久 | Control system of sewage treatment plant |
| CN207418499U (en) * | 2017-06-29 | 2018-05-29 | 河北润德环境工程有限公司 | A kind of purification of waste water mechanism |
| CN210313892U (en) * | 2019-05-24 | 2020-04-14 | 广州华浩能源环保集团股份有限公司 | Sewage treatment system capable of realizing return sludge regeneration and in-situ sludge reduction simultaneously |
| CN112456755A (en) * | 2020-12-24 | 2021-03-09 | 华夏碧水环保科技有限公司 | Wastewater sludge reduction treatment system |
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| Publication number | Publication date |
|---|---|
| CN114506983B (en) | 2023-04-21 |
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