CN214141746U - Biochemical pond nutrient is thrown and fire fighting equipment is thrown - Google Patents
Biochemical pond nutrient is thrown and fire fighting equipment is thrown Download PDFInfo
- Publication number
- CN214141746U CN214141746U CN202022110789.XU CN202022110789U CN214141746U CN 214141746 U CN214141746 U CN 214141746U CN 202022110789 U CN202022110789 U CN 202022110789U CN 214141746 U CN214141746 U CN 214141746U
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- defoaming
- nutrient
- tank
- biochemical
- dripping
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- 235000015097 nutrients Nutrition 0.000 title claims abstract description 137
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims description 9
- 239000006260 foam Substances 0.000 abstract description 20
- 239000010865 sewage Substances 0.000 abstract description 17
- 239000000243 solution Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010992 reflux Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 235000021048 nutrient requirements Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Activated Sludge Processes (AREA)
Abstract
The utility model belongs to the technical field of sewage treatment, and discloses a nutrient adding and defoaming device for a biochemical pool, which comprises a nutrient dripping tank and a nutrient defoaming tank arranged below the nutrient dripping tank; a nutrient agent dripping tank is arranged on the bottom of the nutrient agent defoaming tank, and is provided with a nutrient agent dripping pipe for dripping nutrient agent; a first defoaming nozzle for dripping the nutrient into the biochemical tank is arranged at the outlet end of the nutrient defoaming tank, and the first defoaming nozzle is arranged towards the biochemical tank; a clear liquid outlet of the biochemical tank is connected with a return pipe through a return pump; one end of the return pipe, which is far away from the return pump, extends into the nutrient defoaming tank. By utilizing the nutrient adding and defoaming device for the biochemical tank, firstly, the nutrient can be supplemented to the aerobic zone, and secondly, the nutrient flows in along with pumped clear liquid, and the generation of foam in the aerobic zone can be effectively inhibited by adopting the hydraulic defoaming mode.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to biochemical pond nutrient solution is thrown and fire fighting equipment is thrown.
Background
The biochemical method is a method commonly used in the sewage treatment process, and is a method for removing organic matters in sewage and reducing various pollutants in water by utilizing the characteristic that microorganisms decompose organic pollutants in the nature.
For biological extraction wastewater, COD in water is usually high and nutrient elements such as nitrogen and phosphorus are deficient. The ratio of nutrients (anaerobic biochemical reaction) C: N: P required by the normal growth of microbial cells is 500:5:1, and (aerobic biochemical reaction) C: N: P is 100:5:1, so that the sewage cannot achieve a good treatment effect if a nutrient containing nitrogen and phosphorus is not supplemented into the sewage.
In order to ensure that the treatment effect of the biological extraction sewage reaches the optimal state and ensure that the quality of the effluent water stably reaches the standard, nutritive salt must be added periodically to maintain the normal activity of microorganisms and promote the metabolic growth and reproduction of the microorganisms. In addition, foam is continuously generated during the operation of biochemical treatment, and especially when microorganisms lack nutrient elements, a large amount of foam is generated in the biochemical pool.
In addition, in the biological extraction type sewage treatment process, the sewage pollutant concentration of the water inlet area of the aerobic tank is high, the sewage viscosity is high, when water is continuously fed, the formed water level difference is easy to generate a large amount of foam in the aerobic water inlet area, on the other hand, the aeration of the aerobic tank is easy to generate foam, when the generated amount of the aerobic foam is too large, the aerobic foam overflows from the tank, so that the serious pollution of external equipment and the external tank wall is caused, the operation condition is worsened, and the surrounding environment is seriously influenced.
In order to inhibit the generation of foams and prevent a large amount of foams generated by sewage due to the lack of nutrient elements so as to ensure the cleanness of a plant area of a biological extraction type sewage treatment station, a nutrient adding and defoaming device for a biochemical pool needs to be designed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a biochemical pond nutrient is thrown with and fire fighting equipment is provided.
The utility model discloses the technical scheme who adopts does:
a nutrient adding and defoaming device for a biochemical pool comprises a nutrient dropping tank and a nutrient defoaming tank arranged below the nutrient dropping tank;
a nutrient agent dripping tank is arranged on the bottom of the nutrient agent defoaming tank, and is provided with a nutrient agent dripping pipe for dripping nutrient agent;
a first defoaming nozzle for dripping the nutrient into the biochemical tank is arranged at the outlet end of the nutrient defoaming tank, and the first defoaming nozzle is arranged towards the biochemical tank;
a clear liquid outlet of the biochemical tank is connected with a return pipe through a return pump; one end of the return pipe, which is far away from the return pump, extends into the nutrient defoaming tank.
In the scheme, firstly, the nutrient can be supplemented to the aerobic zone, so that the sewage is prevented from generating a large amount of foam due to the lack of nutrient elements, and the biochemical pool is prevented from generating a large amount of foam due to the lack of nutrient elements; secondly, the nutrient flows in along with the pumped clear liquid, and the generation of foam in the aerobic zone can be effectively inhibited by adopting the hydraulic defoaming mode.
Furthermore, a front-section branch pipe is arranged on the return pipe, and the outlet end of the front-section branch pipe faces the biochemical pool.
Furthermore, the number of the first defoaming nozzles is two, and the two first defoaming nozzles are respectively arranged above the front section and the middle section of the aerobic zone of the biochemical pool.
Further, the first defoaming nozzle above the front section of the aerobic zone is positioned on one side of the front section branch pipe.
Furthermore, the return pipe is also provided with a middle-section branch pipe, and the outlet end of the middle-section branch pipe faces the biochemical pool.
Further, the first defoaming nozzle above the middle section of the aerobic zone is positioned on one side of the middle section branch pipe.
Further, the system also comprises a second defoaming nozzle, the inlet end of the second defoaming nozzle is connected with the return pipe, and the outlet end of the second defoaming nozzle faces the tail section of the aerobic zone.
Further, the nutrient defoaming tank comprises a first defoaming component tank and a second defoaming component tank;
the nutrient agent dripping tank is provided with two dripping pipes, and outlets of the two dripping pipes face the first defoaming sub-tank and the second defoaming sub-tank respectively;
the first defoaming branch tank is connected with the inlet end of the first defoaming nozzle above the front section of the aerobic zone of the biochemical pool;
and the second defoaming branch tank is connected with the inlet end of the first defoaming nozzle above the middle section of the aerobic zone of the biochemical pool.
Furthermore, a dropping valve and a dropping flowmeter are arranged on the dropping pipe.
Further, the device also comprises a nutrient stirring tank and a delivery pump;
the nutrient stirring tank is connected with the nutrient dripping tank through the delivery pump.
The utility model has the advantages that:
when the biochemical pond nutrient solution of this embodiment is thrown and the fire fighting equipment is used, start the backwash pump, sewage obtains the clarified liquid after biochemical pond handles, the clarified liquid is sent to nutrient solution defoaming jar by the backwash pump, on the other hand, nutrient solution accessible dropwise add pipe that has prepared drips to in the nutrient solution defoaming jar, can make the nutrient solution that has prepared flow into first defoaming shower nozzle along with the clarified liquid of pump sending together, then flow into the aerobic district of biochemical pond by first defoaming shower nozzle in, firstly can supply nutrient solution to the aerobic district, prevent that sewage from producing a large amount of foams because of the nutrient element lacks, secondly, nutrient solution flows into along with the clarified liquid of pump sending together, adopt the production of foam in this kind of hydraulic defoaming's mode can effectively restrain aerobic district.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial structural schematic view of fig. 1.
Fig. 3 is a plan view of the nutrient dropping tank and the nutrient defoaming tank.
In the figure: 10-nutrient dropping tank; 11-a dropping pipe; 20-a nutrient defoaming tank; 21-a first defoaming nozzle; 22-a second defoaming nozzle; 23-a first defoaming split tank; 24-a second defoaming split tank; 30-a biochemical pool; 31-an aerobic zone; 32-a precipitation zone; 40-reflux pump; 41-a return pipe; 42-a front section branch pipe; 43-middle branch pipe; 51-nutrient stirring tank; 52-delivery pump.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1, the nutrient adding and defoaming device for a biochemical pond of the embodiment includes a nutrient dropping tank 10 and a nutrient defoaming tank 20 disposed below the nutrient dropping tank 10.
A dropwise adding pipe 11 for dropwise adding the nutrient is arranged on the nutrient dropwise adding tank 10, and the outlet of the dropwise adding pipe 11 faces the nutrient defoaming tank 20; the dropping pipe 11 is opened, and the prepared nutrient in the nutrient dropping tank 10 can be dropped into the nutrient defoaming tank 20 through the dropping pipe 11.
A first defoaming nozzle 21 for dripping the nutrient into the biochemical pool 30 is arranged at the outlet end of the nutrient defoaming tank 20, and the first defoaming nozzle 21 is arranged towards the biochemical pool 30; in this embodiment, the first defoaming nozzle 21 is disposed toward the aerobic area 31 of the biochemical tank 30, and the nutrient added dropwise to the nutrient defoaming tank 20 can be added dropwise to the aerobic area 31 of the biochemical tank 30 through the first defoaming nozzle 21.
The clear liquid outlet of the biochemical pool 30 is connected with a return pipe 41 through a return pump 40; the end of the return pipe 41 remote from the return pump 40 extends into the nutrient antifoam tank 20. When the biochemical pond nutrient solution of this embodiment is thrown and the fire fighting equipment is used, start backwash pump 40, sewage is handled through biochemical pond 30, carry out aerobic treatment by aerobic zone 31 earlier, deposit by precipitation zone 32 again, the overflow and get the clarified liquid after the sediment, the clarified liquid is pumped to nutrient solution defoaming jar 20 by backwash pump 40 for the water of nutrient solution defoaming jar 20 is from the clarified liquid of biochemical pond 30, and does not use extra clear water, can avoid the waste of water resource. On the other hand, the prepared nutrient can be dripped into the nutrient defoaming tank 20 through the dripping pipe 11, the prepared nutrient can flow into the first defoaming nozzle 21 along with the pumped clear liquid, and then flows into the aerobic zone 31 of the biochemical pool 30 through the first defoaming nozzle 21, so that the nutrient can be supplemented to the aerobic zone, and the nutrient can flow into the aerobic zone along with the pumped clear liquid.
Example 2:
in addition to the embodiment 1, in the present embodiment, the return pipe 41 is provided with a front-stage branch pipe 42, an outlet end of the front-stage branch pipe 42 is disposed toward the biochemical tank 30, and in the present embodiment, an outlet end of the front-stage branch pipe 42 is disposed toward the aerobic zone 31 of the biochemical tank 30. During the process that the clarified liquid is pumped to the nutrient defoaming tank 20 by the reflux pump 40, the clarified liquid passes through the reflux pipe 41, and part of the clarified liquid is added into the aerobic zone 31 through the front-section branch pipe 42, so that the generation of foam in the aerobic zone can be effectively inhibited in a hydraulic defoaming mode.
The number of the first defoaming nozzles 21 is two, and the two first defoaming nozzles 21 are respectively arranged above the front section and the middle section of the aerobic zone 31 of the biochemical pool 30 (as shown in fig. 1). Effectively inhibit the generation of foam in the front section and the middle section of the aerobic zone.
The first defoaming nozzle 21 located above the front section of the aerobic zone 31 is located on one side of the front-section branch pipe 42. On one hand, the prepared nutrient flows into the first defoaming nozzle 21 above the front section along with the pumped clear liquid, and then flows into the front section area of the aerobic zone 31; on the other hand, part of the clarified liquid is fed into the front-stage region of the aerobic zone 31 through the front-stage branch pipe 42; the superposition of the two aspects can supplement nutrient to the front section area of the aerobic zone 31, and can effectively inhibit the generation of foam in the front section area of the aerobic zone 31 by a hydraulic defoaming mode.
The return pipe 41 is further provided with a middle branch pipe 43, and an outlet end of the middle branch pipe 43 faces the biochemical tank. In the process that the clarified liquid is pumped to the nutrient defoaming tank 20 by the reflux pump 40, a part of the clarified liquid passes through the reflux pipe 41, and is added into the front section area of the aerobic zone 31 through the front section branch pipe 42, and the other part of the clarified liquid passes through the middle section branch pipe 43 and is added into the middle section area of the aerobic zone 31, so that the generation of foams in the front section and the middle section area of the aerobic zone is effectively inhibited.
The first defoaming nozzle 21 located above the middle section of the aerobic zone 31 is located on one side of the middle section branch pipe 43. On one hand, the prepared nutrient flows into the first defoaming nozzle 21 above the middle section along with the pumped clear liquid, and further flows into the middle section area of the aerobic zone 31; on the other hand, part of the clarified liquid is fed into the middle zone of the aerobic zone 31 through the middle branch pipe 43; the two aspects of the superposition effect can supplement nutrient for the middle section area of the aerobic area 31, and can effectively inhibit the generation of foam in the middle section area of the aerobic area 31 by a hydraulic defoaming mode.
A second defoaming nozzle 22 is arranged above the tail end of the aerobic zone 31, the inlet end of the second defoaming nozzle 22 is connected with the return pipe 41, the outlet end of the second defoaming nozzle 22 faces the tail end of the aerobic zone 31, the second defoaming nozzle 22 above the tail end does not need to drop a nutrient, this is because, for example, by dropping the nutrient solution into the end region of the aerobic zone 31, the nutrient solution flows away directly, to avoid waste, the second defoaming nozzle 22 above the end is not connected to the nutrient defoaming tank 20, and is connected with a return pipe 41, so that in the process that the clarified liquid is pumped to the nutrient defoaming tank 20 by the return pump 40, a part of the clarified liquid is directly added into the tail section area of the aerobic zone through a second defoaming nozzle 22 above the tail end, thus, the generation of foam in the end region of the aerobic zone 31 can be effectively suppressed by means of the hydraulic defoaming.
Example 3:
in addition to embodiment 1, in this embodiment, the nutrient defoaming tank 20 includes a first defoaming sub-tank 23 and a second defoaming sub-tank 24; the nutrient agent dripping tank 10 is provided with two dripping pipes 11, and outlets of the two dripping pipes 11 face a first defoaming sub-tank 23 and a second defoaming sub-tank 24 respectively; the corresponding dropping pipe 11 is opened, and the prepared nutrient in the nutrient dropping tank 10 can be dropped into the first defoaming sub-tank 23 or the second defoaming sub-tank 24 through the corresponding dropping pipe 11. Similarly, the return pipe 41 extends into the first defoaming branch tank 23 or the second defoaming branch tank 24, respectively, so that the clarified liquid is pumped into the first defoaming branch tank 23 and the second defoaming branch tank 24 by the return pump 40, respectively.
As shown in fig. 3, the first defoaming agent sub-tank 23 is connected to the inlet end of the first defoaming nozzle 21 above the front section of the aerobic zone 31 of the biochemical pond 30; the second defoaming and separating tank 24 is connected with the inlet end of the first defoaming nozzle 21 above the middle section of the aerobic zone 31 of the biochemical pool 30. When the device is used, the two dropping pipes 11 can be respectively controlled, and then the dropping amount of the nutrient agent which is dropped to the front section area and the middle section area of the aerobic area is respectively controlled. If the amount of the nutrient added in the second defoaming agent sub-tank 24 is less than the amount of the nutrient added in the first defoaming agent sub-tank 23, the nutrient will flow to the middle section of the aerobic zone 31 with the sewage after the nutrient is supplemented in the front section of the aerobic zone 31, and only a small amount of nutrient needs to be supplemented in the middle section of the aerobic zone 31 in view of cost saving.
In order to conveniently and respectively control the dropwise adding amount of the nutrient in the first defoaming and separating tank 23 and the second defoaming and separating tank 24, a dropwise adding valve and a dropwise adding flow meter can be arranged on the two dropwise adding pipes, wherein the dropwise adding valve is a manual regulating valve, and the dropwise adding flow meter is a glass rotameter, so that the dropwise adding amount of the nutrient in the first defoaming and separating tank 23 and the second defoaming and separating tank 24 can be regulated as required.
Example 4:
on the basis of embodiment 1, the nutrient adding and defoaming device for the biochemical tank further comprises a nutrient stirring tank 51 and a delivery pump 52; according to different nutrient requirements of the aerobic zone 31 or the anaerobic zone of the biochemical pool 30, different nutrient mother solutions are prepared in the nutrient stirring tank 51, and the prepared nutrient is obtained after uniform stirring and mixing.
The nutrient stirring tank 51 is connected to the nutrient dropping tank 10 through the transfer pump 52. The prepared nutrient is pumped to the nutrient dropping tank 10 by the delivery pump 52 and waits to be dropped into the nutrient defoaming tank 20 through the dropping pipe 11.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a biochemical pond nutrient is thrown and fire fighting equipment which characterized in that: the nutrient solution feeding device comprises a nutrient solution dripping tank and a nutrient solution defoaming tank arranged below the nutrient solution dripping tank;
a nutrient agent dripping tank is arranged on the bottom of the nutrient agent defoaming tank, and is provided with a nutrient agent dripping pipe for dripping nutrient agent;
a first defoaming nozzle for dripping the nutrient into the biochemical tank is arranged at the outlet end of the nutrient defoaming tank, and the first defoaming nozzle is arranged towards the biochemical tank;
a clear liquid outlet of the biochemical tank is connected with a return pipe through a return pump; one end of the return pipe, which is far away from the return pump, extends into the nutrient defoaming tank.
2. The biochemical pool nutrient adding and defoaming device as claimed in claim 1, which is characterized in that: the backflow pipe is provided with a front-section branch pipe, and the outlet end of the front-section branch pipe faces the biochemical tank.
3. The biochemical pool nutrient adding and defoaming device as claimed in claim 2, which is characterized in that: the number of the first defoaming nozzles is two, and the two first defoaming nozzles are respectively arranged above the front section and the middle section of the aerobic zone of the biochemical tank.
4. The biochemical pool nutrient adding and defoaming device as claimed in claim 3, which is characterized in that: the first defoaming nozzle positioned above the front section of the aerobic zone is positioned on one side of the front section branch pipe.
5. The biochemical pool nutrient adding and defoaming device as claimed in claim 4, wherein: the return pipe is also provided with a middle-section branch pipe, and the outlet end of the middle-section branch pipe faces the biochemical tank.
6. The biochemical pool nutrient adding and defoaming device as claimed in claim 5, wherein: and the first defoaming sprayer positioned above the middle section of the aerobic zone is positioned on one side of the middle section branch pipe.
7. The biochemical pool nutrient adding and defoaming device as claimed in claim 6, wherein: the system also comprises a second defoaming nozzle, wherein the inlet end of the second defoaming nozzle is connected with the return pipe, and the outlet end of the second defoaming nozzle faces the tail section of the aerobic zone.
8. The biochemical pool nutrient adding and defoaming device as claimed in claim 1 or 7, which is characterized in that: the nutrient defoaming tank comprises a first defoaming component tank and a second defoaming component tank;
the nutrient agent dripping tank is provided with two dripping pipes, and outlets of the two dripping pipes face the first defoaming sub-tank and the second defoaming sub-tank respectively;
the first defoaming branch tank is connected with the inlet end of the first defoaming nozzle above the front section of the aerobic zone of the biochemical pool;
and the second defoaming branch tank is connected with the inlet end of the first defoaming nozzle above the middle section of the aerobic zone of the biochemical pool.
9. The biochemical pool nutrient adding and defoaming device as claimed in claim 8, wherein: and a dropping valve and a dropping flowmeter are arranged on the dropping pipe.
10. The biochemical pool nutrient adding and defoaming device as claimed in claim 1, which is characterized in that: also comprises a nutrient agent stirring tank and a delivery pump;
the nutrient stirring tank is connected with the nutrient dripping tank through the delivery pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022110789.XU CN214141746U (en) | 2020-09-23 | 2020-09-23 | Biochemical pond nutrient is thrown and fire fighting equipment is thrown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022110789.XU CN214141746U (en) | 2020-09-23 | 2020-09-23 | Biochemical pond nutrient is thrown and fire fighting equipment is thrown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214141746U true CN214141746U (en) | 2021-09-07 |
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ID=77557158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022110789.XU Active CN214141746U (en) | 2020-09-23 | 2020-09-23 | Biochemical pond nutrient is thrown and fire fighting equipment is thrown |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214141746U (en) |
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2020
- 2020-09-23 CN CN202022110789.XU patent/CN214141746U/en active Active
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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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A nutrient dosing and defoaming device for biochemical tank Effective date of registration: 20230227 Granted publication date: 20210907 Pledgee: Bank of China Limited Qianjiang Branch Pledgor: HUBEI KANGLEYUAN BIO-TECH Co.,Ltd. Registration number: Y2023420000078 |
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| PC01 | Cancellation 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: 20210907 Pledgee: Bank of China Limited Qianjiang Branch Pledgor: HUBEI KANGLEYUAN BIO-TECH Co.,Ltd. Registration number: Y2023420000078 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A biochemical tank nutrient dosing and defoaming device Granted publication date: 20210907 Pledgee: Bank of China Limited Qianjiang Branch Pledgor: HUBEI KANGLEYUAN BIO-TECH Co.,Ltd. Registration number: Y2024980011094 |