CN212982569U - Lifting aeration device for integrated sewage treatment equipment - Google Patents
Lifting aeration device for integrated sewage treatment equipment Download PDFInfo
- Publication number
- CN212982569U CN212982569U CN202021096054.XU CN202021096054U CN212982569U CN 212982569 U CN212982569 U CN 212982569U CN 202021096054 U CN202021096054 U CN 202021096054U CN 212982569 U CN212982569 U CN 212982569U
- Authority
- CN
- China
- Prior art keywords
- aeration
- pipeline
- sewage treatment
- integrated sewage
- section
- Prior art date
- 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.)
- Active
Links
- 238000005273 aeration Methods 0.000 title claims abstract description 117
- 239000010865 sewage Substances 0.000 title claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000010354 integration Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 4
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 abstract description 10
- 239000001301 oxygen Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses a liftable aeration device for integrated sewage treatment equipment, which comprises a plurality of aeration pipe frames, a plurality of vertical pipelines, an aeration main pipeline and a high-pressure fan, wherein the aeration pipe frames correspond to the vertical pipelines one by one, the aeration main pipeline sequentially comprises an air inlet section, a longitudinal section and a transverse section along the aeration direction, and the aeration pipe frames are provided with a plurality of aeration holes; the bottom end of the vertical pipeline is fixedly communicated with the aeration pipe frame, the top end of the vertical pipeline is respectively communicated with the transverse section of the main aeration pipeline through a flange, and a quick-connection ball valve is arranged on the vertical pipeline close to the joint of the flanges; the horizontal section of the main aeration pipeline is communicated with the longitudinal section, the longitudinal section is communicated with the air inlet section, and the tail end of the air inlet section is connected with the high-pressure fan. The utility model can conveniently and easily disassemble the vertical pipeline and the aeration pipe frame and lift the water outlet surface, the maintenance and the replacement are simple and convenient, and the normal operation of other aeration pipelines can not be influenced; moreover, the utility model has even gas distribution and aeration and high oxygen utilization rate.
Description
Technical Field
The utility model relates to a sewage treatment field, in particular to a lifting aeration device for automatically adjusting micro bubbles of integrated sewage treatment equipment.
Background
With the development of the times, the pollution of industrial wastewater is serious, and the direct discharge causes great pollution to the environment, so that the treatment of the industrial wastewater needs to be paid sufficient attention. In sewage treatment, aeration is required. Aeration is carried out by adopting an aeration disc in the prior art, the aeration disc needs to be fixed at the bottom of a tank, and if the aeration disc is damaged or fails, the whole set of integrated equipment is stopped; when in maintenance, water in the box body needs to be drained firstly, workers go to the bottom of the tank to replace the aeration disc, time is consumed, and meanwhile, the operation of the whole system is also influenced. In the traditional environment-friendly aeration device, aeration disc aeration, blower aeration and Roots blower aeration are adopted, the valve opening degree needs to be manually adjusted on site, and the blower and the Roots blower are high in energy consumption. However, in the operation process of sewage treatment, the aerobic tank needs continuous aeration, and the treatment effect can be ensured only by maintaining the value at about 2 mg/L. In practice, many aeration devices exceed the numerical value in the operation process, so that the aeration quantity is wasted, the electricity consumption is high, and the air quantity cannot be adjusted in real time according to the field operation condition.
If the date of the authorized bulletin is 26 days 11 months 2014, the number of the authorized bulletin is as follows: CN203959915U, the chinese utility model patent document discloses a liftable disk type microporous aeration device, which comprises an aeration disk net, wherein the aeration disk net comprises a gas distribution main pipe, a branch pipe and a microporous aeration disk, which are in a self-closed loop, the branch pipe is communicated with the gas distribution main pipe, the microporous aeration disk is mounted on the branch pipe, the device further comprises at least two sets of lifting devices, the lifting devices are correspondingly arranged on two sides of the aeration disk net, and comprise a fixed column, a guide rail and a fixed bolt, the aeration disk net is fixedly arranged at the bottom end of the fixed column, and the middle upper part of the fixed column is provided with at least two coupling slots; the guide rail is parallel to the fixing column, a fixing hole is formed in the upper portion of the guide rail, and the guide rail and the fixing column are clamped and fixed through the fixing bolt penetrating through the fixing hole.
The similar aeration devices basically have the defects of easy blockage of a pipeline, uneven gas distribution and low conversion rate of oxygen, and meanwhile, the similar aeration devices have low automation degree and high energy consumption, cause aeration waste to a great extent and increase the electricity cost.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect that exists among the above-mentioned prior art and not enough, the utility model provides an automatic adjust promotion aeration equipment of microbubble adopts the porous piping in well aperture, realizes the microbubble aeration, can make the gas distribution of integration equipment, the aeration is even, unblock, and the microbubble of formation can generate the flocculating constituent, reduces the medicament and throws and throw to can get rid of certain SS, COD, easily precipitation separation, and make sewage obtain the clarification.
The technical scheme of the utility model as follows:
a can promote aeration equipment for integration sewage treatment device which characterized in that: the aeration main pipeline sequentially comprises an air inlet section, a longitudinal section and a transverse section along the aeration direction; a plurality of aeration holes are formed in the aeration pipe frames; the bottom end of the vertical pipeline is fixedly communicated with the aeration pipe frame, and the top end of the vertical pipeline is respectively communicated with the transverse section of the main aeration pipeline through a flange; the horizontal section of the main aeration pipeline is communicated with the longitudinal section, the longitudinal section is communicated with the air inlet section, and the tail end of the air inlet section is connected with the high-pressure fan.
And a quick-connection ball valve is arranged on the vertical pipeline close to the flange connection part.
The main aeration pipeline can adopt a carbon steel anti-corrosion pipeline.
The vertical pipeline can adopt a UPVC pipeline.
The aeration pipe frame comprises an annular pipeline and a connecting pipeline which are communicated with each other, the connecting pipeline is positioned in the middle of the rectangular pipeline, and the connecting pipeline is communicated with the vertical pipeline; the annular pipeline is a circular pipeline or a square annular pipeline.
The air inlet section is provided with an adjusting valve which can be used for adjusting micro bubbles generated by aeration.
After the lifting aeration device is used for the integrated sewage treatment equipment, when a certain aeration pipe frame needs to be maintained or replaced, the quick-connection ball valve can be closed, then the flange bolt is loosened, so that the vertical pipeline is separated from the main aeration pipeline, and then the water surface is pulled out by lifting the vertical pipeline and the aeration pipe frame through the lifting stay rope.
The horizontal section of the main aeration pipeline is fixedly arranged below a top cover plate of the integrated sewage treatment equipment, is close to the top cover plate and penetrates through the upper ends of an anaerobic pool, an anoxic pool, an aerobic pool and a filtering and settling pool of the integrated sewage treatment equipment.
Furthermore, a stop valve is arranged on the transverse section of the main aeration pipeline between the anoxic pond and the aerobic pond. During early debugging, the opening degree of the stop valve is determined, and readjustment is not needed if no abnormity occurs in the later operation process.
The top cover plate of the integrated sewage treatment equipment is provided with an anaerobic tank access hole, an anoxic tank access hole and an aerobic tank access hole, and is also provided with a stop valve access hole.
And a DO online instrument (dissolved oxygen tester) is arranged at the upper end of the aerobic tank, and the DO online instrument and the regulating valve are connected with the PLC control system. The PLC control system is provided with: when the oxygen concentration measured by the DO online instrument is more than or equal to 2mg/L, automatically giving a signal to the outlet of the high-pressure fan to adjust the valve, and reducing the opening of the adjusting valve; when the oxygen concentration measured by the DO online instrument is less than 2mg/L, a signal is automatically sent to the outlet of the high-pressure fan to adjust the valve, and the opening of the adjusting valve is increased.
Furthermore, a pressure sensor is arranged between the regulating valve and the high-pressure fan on the air inlet section. When the DO online instrument is abnormal or needs to be maintained, the air quantity can be adjusted through a pressure parameter signal given by the pressure sensor. Multiple protection is implemented to ensure the normal operation of the system. Meanwhile, the running state of the equipment can be remotely transmitted to a management platform and checked by the APP at any time.
The utility model has the advantages as follows:
1. the utility model can disassemble a certain vertical pipeline and the aeration pipe frame very conveniently and easily and lift the vertical pipeline and the aeration pipe frame out of the water surface for maintenance, and has simple operation and convenient maintenance, and the key can not influence the normal operation of other aeration pipelines;
2. the structure of the utility model can meet the requirements of uniform gas distribution and aeration, and the utilization rate of oxygen is high;
3. the aeration holes of the utility model can change air into micro bubbles to generate floccules, which is easy to precipitate and separate, and can clarify sewage, remove certain SS and COD, and reduce the addition of medicament;
4. the utility model adopts the high pressure fan to supply air, so that the energy consumption is very low;
5. the utility model discloses combine PLC control system, can realize automatically regulated aeration rate, the microbubble size that automatically regulated produced, the degree of automation that reaches is high, and is very energy-conserving.
6. The normal operation of the system can be effectively guaranteed through linkage of the pressure sensor and the DO instrument with the high-pressure fan and duplicate protection, the air quantity is adjusted in real time through field operation parameters, the electricity charge is reduced, and manual operation is not needed.
Drawings
Fig. 1 is a schematic view of the structure of an aeration pipeline of the present invention.
Figure 2 is the utility model is used for integration sewage treatment device's structural schematic.
Fig. 3 is a schematic structural view of the middle top cover plate of the present invention.
Reference numerals: 1-an aeration pipe frame, 2-a vertical pipeline, 31-a transverse section of a main aeration pipeline, 32-a longitudinal section of the main aeration pipeline, 33-an air inlet section of the main aeration pipeline, 4-a high-pressure fan, 5-a flange, 6-a quick-connection ball valve, 7-a stop valve, 8-an anaerobic tank, 9-an anoxic tank, 10-an aerobic tank, 11-a filter sedimentation tank, 12-a regulating valve, 13-a top cover plate, 14-an anaerobic tank access hole, 15-an anoxic tank access hole, 16-an aerobic tank access hole, 17-a stop valve access hole, 18-a DO online instrument, 19-a pressure sensor, 20-an electric control cabinet and 21-a device room.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in figure 1, the liftable aeration device for the integrated sewage treatment equipment comprises a plurality of aeration pipe frames 1, a plurality of vertical pipelines 2, an aeration main pipeline and a high-pressure fan 4. Wherein:
the aeration pipe frames 1 correspond to the vertical pipelines 2 one by one, and the main aeration pipeline sequentially comprises an air inlet section 33, a longitudinal section 32 and a transverse section along the aeration direction.
The aeration pipe frame 1 is provided with a plurality of aeration holes. In this embodiment, the aperture of the aeration hole is 2.8 mm.
The bottom end of the vertical pipeline 2 is fixedly communicated with the aeration pipe frame 1, the top end of the vertical pipeline 2 is respectively communicated with the transverse section of the main aeration pipe through a flange 5, and a quick-connection ball valve 6 is arranged on the vertical pipeline 2 close to the joint of the flange 5; the transverse section of the main aeration pipeline is communicated with the longitudinal section 32, the longitudinal section 32 is communicated with the air inlet section 33, and the tail end of the air inlet section 33 is connected with the high-pressure fan 4.
The main aeration pipeline can adopt a carbon steel anti-corrosion pipeline, and the vertical pipeline 2 can adopt a UPVC pipeline. Wherein, the UPVC pipeline is corrosion resistant, light in weight, easy to operate and promote.
The aeration pipe frame 1 comprises a rectangular pipeline and a connecting pipeline which are communicated with each other, the connecting pipeline is positioned in the middle of the rectangular pipeline, and the connecting pipeline is communicated with the vertical pipeline 2. Wherein, the rectangular pipeline can also be replaced by a circular pipeline.
The air inlet section 33 is provided with an adjusting valve 12 for adjusting micro-bubbles generated by aeration.
After the lifting aeration device is used for the integrated sewage treatment equipment, when a certain aeration pipe frame 1 needs to be maintained or replaced, the quick-connection ball valve 6 can be closed, then the flange 5 bolt is loosened, so that the vertical pipeline 2 is separated from the main aeration pipeline, and then the vertical pipeline 2 and the aeration pipe frame 1 are lifted by the lifting stay rope to pull out the water surface.
Example 2
Based on embodiment 1's structure, the utility model is used for during integration sewage treatment device, the horizontal section of aeration trunk line is fixed to be set up below integration sewage treatment device's lamina tecti 13, is close to lamina tecti 13 to run through integration sewage treatment device's anaerobism pond 8, oxygen deficiency pond 9, good oxygen pond 10, the upper end of filtering sedimentation tank 11.
Example 3
Based on the structure of embodiment 1 or 2, further, a stop valve 7 is installed on the lateral section of the main aeration pipe between the anoxic tank 9 and the aerobic tank 10. During early debugging, the opening degree of the stop valve 7 is determined, and readjustment is not needed if no abnormity occurs in the later operation process.
Example 4
Based on any structure of the embodiment 1-3, the top cover plate 13 of the integrated sewage treatment device is provided with an anaerobic tank access hole 14, an anoxic tank access hole 15, an aerobic tank access hole 16 and a stop valve access hole 17.
Example 5
In order to improve the automation degree, in combination with any structure of the embodiments 1 to 4, in this embodiment, a DO online meter 18 is disposed at the upper end of the aerobic tank 10, and both the DO online meter 18 and the regulating valve 12 are connected with the PLC control system. The PLC control system is provided with: when the oxygen concentration measured by the DO online instrument 18 is more than or equal to 2mg/L, automatically giving a signal to the outlet of the high-pressure fan 4 to adjust the valve, and reducing the opening of the adjusting valve 12; when the oxygen concentration measured by the DO online instrument 18 is less than 2mg/L, the signal is automatically sent to the outlet of the high-pressure fan 4 to adjust the valve, and the opening of the adjusting valve 12 is increased.
Example 6
With reference to any structure of embodiments 1 to 4, in this embodiment, a pressure sensor 19 is further disposed between the regulating valve 12 and the high pressure fan 4 on the air inlet section 33, and the air volume can be regulated by a pressure parameter signal given by the pressure sensor 19.
Example 7
In combination with any one of the structures of embodiments 1 to 4, referring to embodiments 5 and 6, the DO inline meter 18 and the pressure sensor 19 may be provided at the same time. When the DO online meter 18 is abnormal or needs to be maintained, the air quantity can be adjusted through a pressure parameter signal given by the pressure sensor 19. Double protection is realized, and normal operation of the system is ensured.
By integrating the above embodiments, the utility model discloses also need not shut down system, artifical pond down when the maintenance, can dismantle the aeration pipeline that needs the maintenance and lift out the surface of water alone, do not influence other pipeline work completely. Through the utility model discloses realize the microbubble aeration, can improve oxygen conversion rate, can reach the effect of mixing the stirring again.
Claims (10)
1. A can promote aeration equipment for integration sewage treatment device which characterized in that: the aeration pipe frame (1) and the vertical pipelines (2) are in one-to-one correspondence, and the aeration main pipeline sequentially comprises an air inlet section (33), a longitudinal section (32) and a transverse section (31) along the aeration trend; a plurality of aeration holes are formed in the aeration pipe frames (1); the bottom end of the vertical pipeline (2) is fixedly communicated with the aeration pipe frame (1), the top end of the vertical pipeline (2) is respectively communicated with the transverse section (31) of the main aeration pipe through a flange (5), and a quick-connection ball valve (6) is arranged on the vertical pipeline (2) close to the joint of the flanges (5); the transverse section (31) of the main aeration pipeline is communicated with the longitudinal section (32), the longitudinal section (32) is communicated with the air inlet section (33), and the tail end of the air inlet section (33) is connected with the high-pressure fan (4).
2. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 1, wherein: the main aeration pipeline is a carbon steel anti-corrosion pipeline.
3. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 1, wherein: the vertical pipeline (2) adopts a UPVC pipeline.
4. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 1, wherein: the aeration pipe frame (1) comprises an annular pipeline and a connecting pipeline which are communicated with each other, the connecting pipeline is positioned in the middle of the rectangular pipeline, and the connecting pipeline is communicated with the vertical pipeline (2); the annular pipeline is a circular pipeline or a square annular pipeline.
5. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 1, wherein: and the air inlet section (33) is provided with a regulating valve (12) for regulating micro-bubbles.
6. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 1, wherein: the horizontal section (31) of the main aeration pipeline is fixedly arranged below a top cover plate (13) of the integrated sewage treatment equipment, is close to the top cover plate (13), and penetrates through the upper ends of an anaerobic tank (8), an anoxic tank (9), an aerobic tank (10) and a filtering and settling tank (11) of the integrated sewage treatment equipment.
7. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 6, wherein: a stop valve (7) is arranged on a transverse section (31) of the main aeration pipeline between the anoxic tank (9) and the aerobic tank (10).
8. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 6, wherein: the integrated sewage treatment equipment is characterized in that an anaerobic tank access hole (14), an anoxic tank access hole (15), an aerobic tank access hole (16) and a stop valve access hole (17) are formed in a top cover plate (13).
9. A liftable aeration apparatus for an integrated sewage treatment plant according to claim 6, wherein: the upper end of the aerobic tank (10) is provided with a DO online instrument (18), and the DO online instrument (18) and the regulating valve (12) are both connected with a PLC control system.
10. The liftable aeration apparatus for an integrated sewage treatment plant according to claim 1 or 9, wherein: and a pressure sensor (19) is also arranged between the regulating valve and the high-pressure fan (4) on the air inlet section (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021096054.XU CN212982569U (en) | 2020-06-15 | 2020-06-15 | Lifting aeration device for integrated sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021096054.XU CN212982569U (en) | 2020-06-15 | 2020-06-15 | Lifting aeration device for integrated sewage treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212982569U true CN212982569U (en) | 2021-04-16 |
Family
ID=75423021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021096054.XU Active CN212982569U (en) | 2020-06-15 | 2020-06-15 | Lifting aeration device for integrated sewage treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212982569U (en) |
-
2020
- 2020-06-15 CN CN202021096054.XU patent/CN212982569U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206872639U (en) | A kind of integrated sewage treating apparatus | |
| CN207632681U (en) | A kind of small-sized integrated water treatment facilities | |
| CN203768187U (en) | Continuous loop aerated domestic sewage treatment device | |
| CN212982569U (en) | Lifting aeration device for integrated sewage treatment equipment | |
| CN207877400U (en) | A kind of sewage treatment aeration system | |
| CN109824147A (en) | Composite integrated sewage disposal device | |
| CN109437485A (en) | Cycle household rural domestic sewage treatment equipment in a kind of microkinetic | |
| CN106316006A (en) | Efficient integrated village and town domestic sewage treatment technology | |
| CN211734119U (en) | Aeration and reflux integrated sewage treatment equipment | |
| CN210103683U (en) | Be used for improving UCT sewage treatment plant | |
| CN209143957U (en) | A kind of sewage Intelligent treatment integral system | |
| CN209292164U (en) | Cycle household rural domestic sewage treatment equipment in a kind of microkinetic | |
| CN205313316U (en) | Adjusting device who is fit for treatment of domestic sewage's intelligent control | |
| CN110668659A (en) | Integrated sewage purification equipment | |
| CN207079135U (en) | Small-sized purification device available for rural domestic sewage treatment | |
| CN219860938U (en) | Industrial sewage MBR membrane reaction device | |
| CN211004928U (en) | Integrated reaction device for pretreatment of wood processing wastewater | |
| CN216191736U (en) | Small-scale domestic sewage treatment system suitable for cold areas | |
| CN207130117U (en) | Tuple of modularly footing the bill closes domestic sewage treatment device | |
| CN221344276U (en) | Laboratory wastewater treatment system | |
| CN211005013U (en) | Integrated sewage purification equipment | |
| CN204509046U (en) | Integrated sewage processor | |
| CN215924705U (en) | Sewage treatment device for microbial fuel cell | |
| CN215102664U (en) | Multi-stage series sewage treatment device based on IFAS process | |
| CN212559842U (en) | Control room suitable for rural sewage treatment integration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Lifting aeration device for integrated sewage treatment equipment Effective date of registration: 20221206 Granted publication date: 20210416 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd. China Chengdu Pledgor: SICHUAN ZOMAIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2022980025391 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210416 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd. China Chengdu Pledgor: SICHUAN ZOMAIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2022980025391 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |