CN112107909A - Sewage treatment device - Google Patents
Sewage treatment device Download PDFInfo
- Publication number
- CN112107909A CN112107909A CN202010975695.0A CN202010975695A CN112107909A CN 112107909 A CN112107909 A CN 112107909A CN 202010975695 A CN202010975695 A CN 202010975695A CN 112107909 A CN112107909 A CN 112107909A
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- China
- Prior art keywords
- fixedly arranged
- supporting
- cylinder
- sewage treatment
- rod
- 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.)
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- 239000010865 sewage Substances 0.000 title claims abstract description 44
- 238000004140 cleaning Methods 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 15
- 239000007787 solid Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6484—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a translatory movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a sewage treatment device, which belongs to the technical field of sewage treatment and comprises a supporting component and an outer cylinder fixedly arranged on one side of the supporting component, wherein an inner cylinder is rotatably arranged in the outer cylinder, a plurality of filter screens distributed at intervals are fixedly arranged on the outer wall of the inner cylinder, a plurality of through holes corresponding to the filter screens are formed in the side wall of the inner cylinder, a scraper is attached to one side of each filter screen, a pull rod is fixedly arranged on one side, away from the filter screens, of each scraper, the pull rod extends from the through holes to the inside of the inner cylinder, and a baffle is fixedly arranged on a rod body of the pull rod. Compared with the prior art, the embodiment of the invention can effectively prevent the filter screen from excessively accumulating solid impurities on the upper part of the filter screen due to long-term use, thereby influencing the filtering effect of the filter screen on subsequent sewage, ensuring the continuity and reliability of sewage filtering, and having the advantages of good sewage filtering effect and high filtering efficiency.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device.
Background
The sewage treatment refers to a purification process for treating sewage to reach a certain water body or meet the requirement of reuse, people's life and various industrial productions in cities can generate a large amount of sewage, and if the sewage is directly discharged without being treated, the environment can be seriously polluted.
At present, the solid debris in the sewage need be filtered in advance during sewage treatment mostly to subsequent further processing, among the prior art, to the filtration of sewage, make sewage pass the filter screen mostly, utilize the filter screen to hold back the solid debris in the sewage, this kind of filtration mode needs regularly to clear up the solid debris that hold back on the filter screen, comparatively wastes time and energy, and during the clearance, sewage filters and need pause, thereby influences the filtration efficiency of sewage.
Disclosure of Invention
In order to overcome the defects in the prior art, an embodiment of the invention provides a sewage treatment device.
In order to solve the technical problems, the invention provides the following technical scheme:
a sewage treatment device comprises a supporting component and an outer cylinder fixedly arranged on one side of the supporting component, an inner barrel is rotatably arranged in the outer barrel, a plurality of filter screens distributed at intervals are fixedly arranged on the outer wall of the inner barrel, a plurality of through holes corresponding to the filter screens are arranged on the side wall of the inner barrel, a scraper is attached to one side of the filter screen, a pull rod is fixedly arranged on one side of the scraper, which is far away from the filter screen, the pull rod extends into the inner barrel from the through hole, and a baffle is fixedly arranged on the rod body of the pull rod positioned in the inner cylinder, a supporting plate is fixedly arranged on one side of the baffle far away from the scraper, the supporting plate is connected with the inner wall of the inner cylinder through a first elastic body, a fixed rod is fixedly arranged on the inner side of one end of the pull rod, which is far away from the scraper, the tail end of the fixed rod is movably sleeved with a limiting cylinder, and a second elastic body acting on the end part of the fixed rod is arranged in the limiting cylinder; the supporting assembly comprises a supporting vertical plate and a plurality of connecting rods fixedly arranged on one side of the supporting vertical plate, the outer barrel is fixedly connected with the connecting rods, a driving sleeve is fixedly arranged on one side of the inner barrel, a through hole corresponding to the inner cavity of the driving sleeve is formed in the side wall of the inner barrel, the driving sleeve extends to the outer part of the outer barrel and is in rotating fit with the outer barrel, a supporting rod is fixedly arranged on the side wall of the supporting vertical plate, the supporting rod extends to the inside of the driving sleeve and is fixedly connected with a supporting plate, a guide groove is formed in one side, away from the supporting rod, of the supporting plate, and the limiting barrel is abutted against the; and a driving assembly for driving the driving sleeve to rotate is further arranged on one side of the supporting vertical plate.
As a further improvement of the invention: the guide groove is of an arc structure with a downward opening, and the circle center of the guide groove is located below the circle center of the inner cylinder.
As a further improvement of the invention: the first elastic body and the second elastic body are both springs.
As a further improvement of the invention: the drive assembly comprises a motor fixedly installed on one side of the supporting vertical plate and a gear installed at the output end of the motor, a gear ring is fixedly arranged on the outer wall of the driving sleeve, and the gear is meshed with the gear ring.
As a still further improvement of the invention: the joint of the driving sleeve and the outer cylinder is in running fit with a bearing.
As a still further improvement of the invention: the bottom of the supporting vertical plate is also fixedly provided with a bottom plate.
As a still further improvement of the invention: the one end that the drive sleeve was kept away from to the inner tube is uncovered setting, the urceolus is kept away from one side of supporting component is provided with the clearance mouth, clearance mouth department is provided with the closing plate.
Compared with the prior art, the invention has the beneficial effects that:
in the embodiment of the invention, the driving sleeve is driven to rotate by the driving component, the inner cylinder is driven to rotate, the inner cylinder drives the filter screen on the outer part to do circular motion, the scraper and the pull rod are driven to synchronously move, along with the rotation of the pull rod, when the pull rod drives the fixed rod and the limiting cylinder to rotate to one end of the guide groove, the limiting cylinder can enter the guide groove under the action of the second elastomer, the pull rod is driven to move towards the inner part of the inner cylinder by the guide groove, the supporting plate, the baffle and the scraper are driven to move towards the inner part of the inner cylinder, the solid sundries attached to one side of the filter screen are scraped towards the direction of the through hole by the scraper, so that the solid sundries can enter the inner cylinder from the through hole to be temporarily stored, the automatic cleaning of the solid sundries is realized, compared with the prior art, the automatic cleaning of the filter screen, the sewage filtering continuity and reliability are guaranteed, and the sewage filtering device has the advantages of good sewage filtering effect and high filtering efficiency.
Drawings
FIG. 1 is a schematic view showing a sewage treatment apparatus;
FIG. 2 is a schematic structural view of an inner cylinder in a sewage treatment apparatus;
FIG. 3 is a schematic structural view of a position-limiting cylinder in a sewage treatment device;
FIG. 4 is a schematic view of a support assembly of a sewage treatment plant;
in the figure: 1-outer cylinder, 2-water inlet, 3-filter screen, 4-scraper, 5-pull rod, 6-through port, 7-baffle, 8-elastomer, 9-support plate, 10-inner cylinder, 11-support plate, 12-guide groove, 13-water outlet, 14-fixed rod, 15-limit cylinder, 16-bottom plate, 17-support vertical plate, 18-connecting rod, 19-motor, 20-gear, 21-drive sleeve, 22-support rod, 23-gear ring, 24-through hole and 25-cleaning port.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-4, the present embodiment provides a sewage treatment apparatus, including a supporting component and an outer cylinder 1 fixedly disposed on one side of the supporting component, a water inlet 2 is disposed below a side wall of the outer cylinder 1, a water outlet 13 is disposed at a bottom of the outer cylinder 1, an inner cylinder 10 is rotatably disposed inside the outer cylinder 1, a plurality of filter screens 3 are fixedly disposed on an outer wall of the inner cylinder 10, a plurality of through holes 6 corresponding to the filter screens 3 are disposed on a side wall of the inner cylinder 10, a scraper 4 is attached to one side of the filter screens 3, a pull rod 5 is fixedly disposed on one side of the scraper 4 away from the filter screens 3, the pull rod 5 extends from the through holes 6 to an inside of the inner cylinder 10, a baffle 7 is fixedly disposed on a rod body of the pull rod 5 located inside the inner cylinder 10, a supporting plate 9 is fixedly disposed on one side of the baffle 7 away from the, a fixed rod 14 is fixedly arranged on the inner side of one end, far away from the scraper 4, of the pull rod 5, a limiting cylinder 15 is movably sleeved at the tail end of the fixed rod 14, and a second elastic body (not shown) acting on the end part of the fixed rod 14 is arranged in the limiting cylinder 15; the supporting component comprises a supporting vertical plate 17 and a plurality of connecting rods 18 fixedly arranged on one side of the supporting vertical plate 17, the outer barrel 1 is fixedly connected with the connecting rods 18, a driving sleeve 21 is fixedly arranged on one side of the inner barrel 10, a through hole 24 corresponding to the inner cavity of the driving sleeve 21 is formed in the side wall of the inner barrel 10, the driving sleeve 21 extends to the outside of the outer barrel 1 and is in running fit with the outer barrel 1, a supporting rod 22 is fixedly arranged on the side wall of the supporting vertical plate 17, the supporting rod 22 extends to the inside of the driving sleeve 21 and is fixedly connected with a supporting plate 11, a guide groove 12 is formed in one side, far away from the supporting rod 22, of the supporting plate 11, and the limiting barrel 15 is abutted against the side wall; and a driving component for driving the driving sleeve 21 to rotate is further arranged on one side of the supporting vertical plate 17.
Injecting sewage to be treated into the outer barrel 1 from the water inlet 1, wherein solid impurities in the sewage can be filtered by the filter screen 3, and the sewage is discharged from the water outlet 13 after being filtered; the driving sleeve 21 is driven to rotate through the driving assembly, the inner barrel 10 is further driven to rotate, the inner barrel 10 drives the filter screen 3 outside the inner barrel to do circular motion, the scraper 4 and the pull rod 5 are further driven to move synchronously, along with the rotation of the pull rod 5, when the pull rod 5 drives the fixed rod 14 and the limiting barrel 15 to rotate to one end of the guide groove 12, the limiting barrel 15 can enter the guide groove 12 under the action of the second elastic body, the pull rod 5 is driven to move towards the inner barrel 10 through the guide groove 12, the supporting plate 9, the baffle plate 7 and the scraper 4 are further driven to move towards the inner barrel 10, solid sundries attached to one side of the filter screen 3 are scraped towards the through hole 6 through the scraper 4, the solid sundries can enter the inner barrel 10 through the through hole 6 to be temporarily stored, and when the filter screen 3 continuously filters sewage, the filter screen; along with the continuation of pull rod 5 rotates, when spacing section of thick bamboo 15 rotated out from the other end of guide way 12, under the effect of first elastomer 8, can pull backup pad 9, drive backup pad 9, pull rod 5, baffle 7 and scraper blade 4 reverse movement for baffle 7 butt is at inner tube 10 inner wall again, in order to carry out the shutoff to opening 6, prevents that sewage from inside through-hole 6 gets into inner tube 10.
Specifically, guide way 12 is the arc structure that the opening is decurrent, and the centre of a circle of guide way 12 is located the below of the inner tube 10 centre of a circle for spacing section of thick bamboo 15 can move to inner tube 10 central point according to the profile variation trend pull rod 5 of guide way 12 when getting into the inside slip of guide way 12, in order to drive scraper blade 4 and remove, clears up filter screen 3.
Specifically, the first elastic body 8 and the second elastic body are both springs.
Specifically, the drive assembly includes fixed mounting and is in support riser 17 one side motor 19 and install the gear 20 of motor 19 output, the fixed ring gear 23 that is provided with of driving sleeve 21 outer wall, gear 20 with ring gear 23 meshing.
The gear 20 is driven by the motor 19 to rotate, and the driving sleeve 21 is driven to rotate by the meshing action of the gear 20 and the gear ring 23, so that the inner cylinder 10 is driven to rotate in the outer cylinder 1.
In this embodiment, in order to improve the rotation effect and the rotation stability of the driving sleeve 21 and the inner cylinder 10, a bearing is adopted to rotatably cooperate with the joint of the driving sleeve 21 and the outer cylinder 1.
In this embodiment, in order to improve the stability of the device, the bottom of the supporting vertical plate 17 is further fixedly provided with a bottom plate 16.
Example 2
Referring to fig. 4, in the present embodiment, compared to embodiment 1, an end of the inner cylinder 10 away from the driving sleeve 21 is open, a cleaning opening 25 is disposed on a side of the outer cylinder 1 away from the supporting component, and a sealing plate (not shown) is disposed at the cleaning opening 25.
The solid foreign materials stored in the inner tub 10 can be cleaned by periodically opening the sealing plate.
In the embodiment of the invention, the driving sleeve 21 is driven to rotate by the driving component, so as to drive the inner cylinder 10 to rotate, the inner cylinder 10 drives the filter screen 3 outside the inner cylinder to move circularly, so as to drive the scraper 4 and the pull rod 5 to move synchronously, along with the rotation of the pull rod 5, when the pull rod 5 drives the fixing rod 14 and the limiting cylinder 15 to rotate to one end of the guide groove 12, the limiting cylinder 15 can enter the guide groove 12 under the action of the second elastic body, the pull rod 5 is driven to move towards the inner cylinder 10 by the guide groove 12, so as to drive the supporting plate 9, the baffle 7 and the scraper 4 to move towards the inner direction of the inner cylinder 10, the solid sundries attached to one side of the filter screen 3 by the scraper 4 are scraped towards the through opening 6, so that the solid sundries can enter the inner cylinder 10 from the through opening 6 for temporary storage, thereby realizing the automatic cleaning of the solid, the solid sundries gathered on the upper part of the filter screen are too much, so that the filtering effect of the filter screen 3 on subsequent sewage is influenced, the continuity and the reliability of sewage filtering are ensured, and the filter screen has the advantages of good sewage filtering effect and high filtering efficiency.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. The sewage treatment device is characterized by comprising a supporting component and an outer barrel (1) fixedly arranged on one side of the supporting component, wherein an inner barrel (10) is arranged in the outer barrel (1) in a rotating mode, a plurality of filter screens (3) distributed at intervals are fixedly arranged on the outer wall of the inner barrel (10), a plurality of through holes (6) corresponding to the filter screens (3) are formed in the side wall of the inner barrel (10), a scraper (4) is arranged on one side of the filter screens (3) in a laminating mode, a pull rod (5) is fixedly arranged on one side, far away from the filter screens (3), of the scraper (4), the pull rod (5) extends into the inner barrel (10) from the through holes (6), a baffle (7) is fixedly arranged on a rod body positioned in the inner barrel (10), a supporting plate (9) is fixedly arranged on one side, far away from the scraper (4), of, the supporting plate (9) is connected with the inner wall of the inner cylinder (10) through a first elastic body (8), a fixing rod (14) is fixedly arranged on the inner side of one end, away from the scraper (4), of the pull rod (5), a limiting cylinder (15) is movably sleeved at the tail end of the fixing rod (14), and a second elastic body acting on the end portion of the fixing rod (14) is arranged in the limiting cylinder (15); the supporting component comprises a supporting vertical plate (17) and a plurality of connecting rods (18) fixedly arranged on one side of the supporting vertical plate (17), the outer cylinder (1) is fixedly connected with the connecting rod (18), one side of the inner cylinder (10) is fixedly provided with a driving sleeve (21), the side wall of the inner cylinder (10) is provided with a through hole (24) corresponding to the inner cavity of the driving sleeve (21), the driving sleeve (21) extends to the outside of the outer cylinder (1) and is in running fit with the outer cylinder (1), a support rod (22) is fixedly arranged on the side wall of the support vertical plate (17), the support rod (22) extends into the drive sleeve (21) and is fixedly connected with a support plate (11), a guide groove (12) is arranged on one side of the supporting plate (11) far away from the supporting rod (22), the limiting cylinder (15) is abutted against the side wall of the supporting plate (11) from the through hole (24) under the action of the second elastic body; and a driving component for driving the driving sleeve (21) to rotate is further arranged on one side of the supporting vertical plate (17).
2. The sewage treatment device according to claim 1, wherein the guide groove (12) is of an arc structure with a downward opening, and the center of the guide groove (12) is located below the center of the inner cylinder (10).
3. A sewage treatment plant according to claim 1 or 2, characterised in that said first elastomer (8) and said second elastomer are both springs.
4. The sewage treatment device according to claim 1, wherein the driving assembly comprises a motor (19) fixedly installed on one side of the supporting vertical plate (17) and a gear (20) installed at the output end of the motor (19), a gear ring (23) is fixedly arranged on the outer wall of the driving sleeve (21), and the gear (20) is meshed with the gear ring (23).
5. A device according to claim 4, characterized in that the connection between the driving sleeve (21) and the outer drum (1) is a bearing running fit.
6. The sewage treatment device according to claim 1, wherein a bottom plate (16) is further fixedly arranged at the bottom of the supporting vertical plate (17).
7. The sewage treatment device according to claim 6, wherein an end of the inner cylinder (10) far away from the driving sleeve (21) is open, a cleaning opening (25) is arranged on one side of the outer cylinder (1) far away from the supporting component, and a sealing plate is arranged at the cleaning opening (25).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975695.0A CN112107909A (en) | 2020-09-16 | 2020-09-16 | Sewage treatment device |
| PCT/CN2020/139296 WO2022057134A1 (en) | 2020-09-16 | 2020-12-25 | Wastewater treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975695.0A CN112107909A (en) | 2020-09-16 | 2020-09-16 | Sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112107909A true CN112107909A (en) | 2020-12-22 |
Family
ID=73803136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010975695.0A Withdrawn CN112107909A (en) | 2020-09-16 | 2020-09-16 | Sewage treatment device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112107909A (en) |
| WO (1) | WO2022057134A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113350841A (en) * | 2021-04-26 | 2021-09-07 | 湖南鹤祥包装有限公司 | Printing ink filter equipment |
| CN115304224A (en) * | 2022-09-01 | 2022-11-08 | 四川省浙新农业科技发展有限公司 | Compound ecological filter bed of quality of water ecological remediation |
| CN118236756A (en) * | 2024-05-27 | 2024-06-25 | 河北物恒能源科技有限公司 | Water quality purifying device for ground source heat pump system |
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| US20020196704A1 (en) * | 2001-06-26 | 2002-12-26 | May Douglas L. | Perforated-plate churn-mixer |
| CN107362743A (en) * | 2017-08-01 | 2017-11-21 | 合肥图森工业设计有限公司 | A kind of novel fruit juice beverage agitation mixer and its method of work |
| CN108751393A (en) * | 2018-05-31 | 2018-11-06 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of fountain sewage disposal aerator |
| CN108816173A (en) * | 2018-06-25 | 2018-11-16 | 罗莎 | A kind of industrial chemicals stirred autoclave |
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| CN112058150A (en) * | 2020-09-10 | 2020-12-11 | 王哲 | Liquid medicine mixing arrangement for agricultural production |
| CN112121727A (en) * | 2020-09-29 | 2020-12-25 | 淄博创立机电科技有限公司 | Waste water treatment device |
-
2020
- 2020-09-16 CN CN202010975695.0A patent/CN112107909A/en not_active Withdrawn
- 2020-12-25 WO PCT/CN2020/139296 patent/WO2022057134A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113350841A (en) * | 2021-04-26 | 2021-09-07 | 湖南鹤祥包装有限公司 | Printing ink filter equipment |
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| CN115304224B (en) * | 2022-09-01 | 2023-12-19 | 四川省浙新农业科技发展有限公司 | Composite ecological filter bed for restoring water quality ecology |
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| CN118236756B (en) * | 2024-05-27 | 2024-08-06 | 河北物恒能源科技有限公司 | Water quality purifying device for ground source heat pump system |
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| Publication number | Publication date |
|---|---|
| WO2022057134A1 (en) | 2022-03-24 |
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Application publication date: 20201222 |
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