CN114195209B - Bubble-driven push rod reciprocating dry powder quantitative dosing device - Google Patents
Bubble-driven push rod reciprocating dry powder quantitative dosing device Download PDFInfo
- Publication number
- CN114195209B CN114195209B CN202111509566.3A CN202111509566A CN114195209B CN 114195209 B CN114195209 B CN 114195209B CN 202111509566 A CN202111509566 A CN 202111509566A CN 114195209 B CN114195209 B CN 114195209B
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- push rod
- rod
- dosing
- medicine
- reciprocating
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- 239000000843 powder Substances 0.000 title claims abstract description 21
- 239000003814 drug Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005273 aeration Methods 0.000 claims abstract description 15
- 230000008261 resistance mechanism Effects 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000008399 tap water Substances 0.000 abstract description 2
- 235000020679 tap water Nutrition 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 2
- 238000012377 drug delivery Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005276 aerator Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention relates to a dry powder quantitative dosing device with a bubble driving push rod in reciprocating motion, which comprises a dosing bin, wherein a sliding reciprocating push rod is limited in the dosing bin, a pendulum ball gas-collecting hood device is arranged at the lower end of the reciprocating push rod, and the pendulum ball gas-collecting hood device is arranged in a bubble agent mixing tank; a resistance mechanism is arranged between the medicine adding bin and the reciprocating push rod. The invention has simple structure, realizes automatic dosing, and is suitable for all places needing aeration and dry powder dosing, such as sewage treatment, tap water treatment, water body treatment and the like. The invention reduces the labor intensity of operators; the structure is stable, faults are not easy to occur, the single manufacturing cost is low, the device can be widely popularized, and the economic burden on a user is small; long service life.
Description
Technical Field
The invention belongs to the technical field of dry powder dosing devices, and relates to a dry powder quantitative dosing device with a push rod driven by bubbles to reciprocate.
Background
The water treatment has a large amount of dosing work in biochemical and coagulating sedimentation process units, the manual dosing is inaccurate, the labor intensity is high, and the sanitary condition is poor. Large-scale water works have automatic dry powder medicament to throw and add the device, and the device is carried by low-speed motor drive screw rod and is thrown and add powder, needs gear motor, equipment such as screw rod, and is with high costs, and gear motor 24 hours operation has fragile scheduling problem. At present, the dispersion type sewage treatment station rapidly develops, the dry powder agent is added into the sewage treatment station to solve the problem, in particular to the dephosphorization agent is added, the automatic dry powder agent adding device of a large-scale water plant has high price and complex structure, and is not suitable for rural dispersion type sewage treatment stations. The rural scattered sewage treatment station needs no power consumption equipment, and the manufacturing cost is low, and the dry powder dosing device is easy to install.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a dry powder quantitative dosing device with a bubble driving push rod capable of reciprocating. The device has simple structure and low energy consumption, does not need a gear motor, a screw rod and the like, realizes up-and-down movement of the reciprocating push rod by means of the buoyancy of bubbles and the swing of the swing gas collecting hood device, is economical and durable, and is suitable for a small amount of dry powder dosing systems.
According to the technical scheme provided by the invention: a bubble-driven push rod reciprocating dry powder quantitative dosing device comprises a dosing bin, wherein a sliding reciprocating push rod is limited in the dosing bin, a pendulum ball gas-collecting hood device is arranged at the lower end of the reciprocating push rod, and the pendulum ball gas-collecting hood device is positioned in a bubble medicament mixing tank; a resistance mechanism is arranged between the medicine adding bin and the reciprocating push rod.
As a further improvement of the invention, the medicine adding bin comprises a medicine storage bin, the lower part of the medicine storage bin is communicated with a medicine feeding pipe, and reciprocating push rods are arranged in the medicine storage bin and the medicine feeding pipe in a sliding manner.
As a further improvement of the invention, a feeding cover plate is arranged at the top of the medicine storage bin.
As a further improvement of the invention, the reciprocating push rod comprises a slide rod, the lower end of the slide rod is connected with a dosing ring piece rod, the lower end of the dosing ring piece rod extends out of the drug delivery pipe and is connected with the swing ball gas collecting hood device, the top of the slide rod is provided with a limiting boss, and a limiting flange is arranged in the dosing bin.
As a further improvement of the invention, the resistance mechanism comprises a strong magnetic block and a metal suction block, wherein the strong magnetic block is arranged in the dosing bin, and the metal suction block is arranged on the reciprocating push rod.
As a further improvement of the invention, the swing ball gas-collecting hood device comprises a bracket, wherein the upper end of the bracket is connected with a dosing ring piece rod, and the lower end of the bracket is hinged with the swing gas-collecting hood.
As a further improvement of the invention, the swing ball gas-collecting hood comprises a connecting rod, the upper end and the lower end of the connecting rod are respectively connected with the swing ball and the swing gas-collecting hood, the geometric center of the connecting rod is provided with a connecting rod hinge hole, the lower end of the bracket is provided with a bracket hinge hole, and the two hinge holes are hinged through a bolt; the gravity center of the swing ball and the gravity center of the swing gas-collecting hood are connected on the same side of the geometric center of the connecting rod.
As a further improvement of the invention, the swing ball density is slightly lighter than water, and the swing gas collecting hood is more dense than water.
As a further improvement of the invention, the medicament mixing tank comprises a gas pipe, the lower end of the gas pipe is communicated with one end of an aeration pipe, and the aeration pipe is positioned at the bottom of the water storage tank; the other end of the aeration pipe is of a sealing structure, and a plurality of air outlet holes are formed in the top of the aeration pipe.
As a further improvement of the invention, the upper end of the gas pipe is provided with the gas valve, the gas outlet quantity can be regulated through the gas valve, the movement frequency of the reciprocating push rod is controlled, and the invention has the function of accurately regulating the dosage.
The positive progress effect of this application lies in:
1. the invention has simple structure, realizes automatic dosing, and is suitable for all places needing aeration and dry powder dosing, such as sewage treatment, tap water treatment, water body treatment and the like.
2. The invention reduces the labor intensity of operators; the structure is stable, faults are not easy to occur, the single manufacturing cost is low, the device can be widely popularized, and the economic burden on a user is small; long service life.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of the cartridge of the present invention.
Fig. 3 is a top view of a cartridge according to the present invention.
Fig. 4 is a schematic view of a reciprocating push rod according to the present invention.
Fig. 5 is a front view of the swing ball gas collecting channel device of the invention.
Fig. 6 is a side view of a pendulum gas collector apparatus according to the present invention.
FIG. 7 is a schematic diagram of a bubble agent mixing tank according to the present invention.
FIG. 8 is a schematic view showing the lowest position of the swing ball gas collecting hood device.
FIG. 9 is a schematic view showing the ascending state of the swing ball gas collecting hood device according to the present invention.
FIG. 10 is a schematic view showing the present invention in the highest position of the swing ball gas collecting hood.
FIG. 11 is a schematic view showing the descending state of the swing ball gas collecting hood device.
FIG. 12 is a schematic view showing the state of the swing ball gas collecting channel device of the present invention lowered to the lowest position.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the invention herein. Furthermore, the terms "include" and "have," and the like, mean that other content not already listed may be "included" and "provided" in addition to those already listed in "include" and "provided; for example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements not expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In fig. 1-12, the device comprises a medicine adding bin 1, a reciprocating push rod 2, a ball-swinging gas-collecting hood device 3, a bubble medicine mixing tank 4 and the like.
As shown in fig. 1, the invention relates to a dry powder quantitative dosing device with a bubble driving push rod in a reciprocating motion, which comprises a dosing bin 1, a reciprocating push rod 2, a ball-swinging gas-collecting hood device 3 and a bubble medicament mixing tank 4.
A sliding reciprocating push rod 2 is limited in the medicine adding bin 1, a swing ball gas-collecting hood device 3 is arranged at the lower end of the reciprocating push rod 2, and the swing ball gas-collecting hood device 3 is positioned in the bubble medicine mixing tank 4. A resistance mechanism is arranged between the medicine adding bin 1 and the reciprocating push rod 2.
As shown in fig. 2-3, the medicine adding bin 1 comprises a medicine storage bin 1.2, a feeding cover plate 1.5 is arranged at the top of the medicine storage bin 1.2, a medicine feeding pipe 1.3 is communicated with the lower part of the medicine storage bin 1.2, and a reciprocating push rod 2 is slidably arranged in the medicine storage bin 1.2 and the medicine feeding pipe 1.3.
The reciprocating push rod 2 comprises a slide rod 2.1, and the lower end of the slide rod 2.1 is connected with a dosing ring piece rod 2.2 in a threaded manner. The lower end of the dosing ring piece rod 2.2 extends out of the drug delivery tube 1.3 and is connected with the swing ball gas collecting hood device 3.
The top of the slide bar 2.1 is provided with a limiting boss 2.11, a limiting flange is arranged in the medicine adding bin 1, when the slide bar 2.1 slides downwards to a certain position, the limiting boss 2.11 props against the limiting flange, and the slide bar 2.1 cannot slide downwards.
The slide bar 2.1 and the dosing ring piece bar 2.2 are matched with the medicine feeding tube 1.3 in size, an inner thread hole is formed in the lower end of the slide bar 2.1, outer threads are arranged at the two ends of the ring piece dosing bar 2.2, and the upper surface of the ring piece dosing bar 2.2 is fixedly connected with the slide bar 2.1 through threads.
The resistance mechanism comprises a strong magnetic block 1.1 and a metal suction block, wherein the strong magnetic block 1.1 is arranged in the medicine adding bin 1, and the metal suction block is arranged on the reciprocating push rod 2.
In the embodiment, the strong magnetic block 1.1 is arranged at the upper end of the limiting flange, and the limiting boss 2.11 is a metal suction block.
In order to save the space of the medicine storage bin 1.2 and protect operators, a protective cylinder 1.6 is communicated with the upper part of the medicine storage bin 1.2.
In order to concentrate the medicine body towards the middle, the medicine storage bin 1.2 is a conical cylinder.
The medicine feeding pipe 1.3 and the protective cylinder 1.6 are positioned on the same axis.
As shown in fig. 4-6, the swing ball gas-collecting hood device 3 comprises a bracket 3.1, wherein the upper end of the bracket 3.1 is connected with a dosing ring sheet rod 2.2 in a threaded manner, and the lower end of the bracket 3.1 is hinged with the swing gas-collecting hood 3.2.
The swing ball gas-collecting hood 3.2 consists of a swing ball 3.21, a connecting rod 3.22 and a swing gas-collecting hood 3.23. The upper end and the lower end of the connecting rod 3.22 are respectively connected with the swing ball 3.21 and the swing gas collecting hood 3.23, the geometric center of the connecting rod 3.22 is provided with a connecting rod hinge hole, the lower end of the bracket 3.1 is provided with a bracket hinge hole, and the two hinge holes are hinged through a bolt.
The gravity center of the swinging ball 3.21 and the gravity center of the swinging gas-collecting hood 3.23 are connected on the same side of the geometric center of the connecting rod 3.22.
The density of the pendulum ball 3.21 is slightly lighter than that of water, and the density is adjusted by placing a balancing weight in the pendulum ball 3.21 according to the density equal to the mass divided by the volume of the object.
The swing gas-collecting channel 3.23 has a density higher than that of water, is made of metal materials, and is selected according to actual working conditions.
The bracket 3.1 is an L-shaped bracket.
As shown in fig. 7, the medicament mixing tank 4 comprises a gas pipe 4.22, and the lower end of the gas pipe is communicated with an aeration pipe 4.23. The aerator pipe 4.23 is positioned at the bottom of the water storage tank 4.12.
One end of the aeration pipe 4.23 is communicated with the gas pipe 4.22, the other end is of a sealing structure, and the top of the aeration pipe is provided with a plurality of gas outlet holes.
The upper end of the gas pipe 4.22 is provided with a gas valve 4.21, and the dosing frequency of the device can be adjusted.
The opening on one side of the upper end of the water storage tank body 4.12 is level with the liquid level, and the water guide hole 4.11 of the water storage tank in the middle of the bottom.
The working process of the invention is as follows:
as shown in figures 8-12, the center of the dosing bin 1 is provided with a reciprocating push rod 2, the reciprocating push rod 2 consists of a main dosing push rod 2.1 and a circular dosing rod 2.2, a swinging gas collecting cover 3.23 collects bubbles released by a perforated aeration pipe 4.23, the gas volume in the swinging gas collecting cover 3.23 is increased, the buoyancy is increased, when the total buoyancy exceeds the gravity of the reciprocating push rod 2 and the suction force of a strong magnetic block 1.1, the reciprocating push rod 2 rapidly ascends, the swinging ball 3.21 exposes out of the water surface, a medicament enters the medicine storage bin 1.2 from the circular dosing rod 2.2, the medicament is loaded in the circular dosing rod 2.2, the buoyancy is gradually weakened, when the gravity of the swinging ball 3.21 is larger than the buoyancy of the reciprocating push rod 2, the swinging gas collecting cover 3.23 and the swinging ball 3.21 link rod swing, the opening of the swinging gas collecting cover 3.23 is gradually overturned, the gas in the swinging gas collecting cover 3.23 is rapidly released, the reciprocating push rod 2 rapidly descends due to self gravity, the swinging ball 3.21 is lower than the buoyancy of the circular dosing rod 2.21, the swinging gas collecting cover 3.23 is gradually pushed down to the circular dosing rod 2.2, and the gravity of the circular dosing rod is gradually moved down to the circular dosing rod 2.2 is stopped by the circular dosing rod 2.2 when the buoyancy is gradually increased to a certain height, but the gravity is lower than the buoyancy of the circular dosing rod 1.2 is gradually moved down by the circular dosing rod 2. The gas restrained by the swinging gas-collecting hood 3.23 is increased to a certain amount, the buoyancy exceeds the suction force of the strong magnetic block 1.1, the gravity of the reciprocating push rod 2 and the swinging ball gas-collecting hood device 3, and when the sum of friction forces is added, the reciprocating push rod 2 ascends, the suction force is weakened and nearly disappears after a certain distance, the reciprocating push rod 2 rapidly ascends, and the medicine is sprayed out of the medicine adding annular sheet rod 2.2 when the reciprocating push rod 2 descends. According to the dry powder quantitative dosing device with the reciprocating motion of the push rod driven by the air bubbles, the reciprocating push rod is pushed to move upwards through the aeration air bubbles, and the reciprocating push rod moves downwards against resistance by means of gravity through release of the air bubbles, so that the reciprocating push rod reciprocates.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (4)
1. The dry powder quantitative dosing device with the reciprocating motion of the push rod driven by bubbles is characterized by comprising a dosing bin (1), wherein a sliding reciprocating push rod (2) is limited in the dosing bin (1), a ball-swinging gas-collecting cover device (3) is arranged at the lower end of the reciprocating push rod (2), and the ball-swinging gas-collecting cover device (3) is positioned in a bubble medicament mixing tank (4); a resistance mechanism is arranged between the medicine adding bin (1) and the reciprocating push rod (2); the medicine adding bin (1) comprises a medicine storage bin (1.2), the lower part of the medicine storage bin (1.2) is communicated with a medicine feeding pipe (1.3), a reciprocating push rod (2) is arranged in the medicine storage bin (1.2) and the medicine feeding pipe (1.3) in a sliding mode, the reciprocating push rod (2) comprises a slide rod (2.1), the lower end of the slide rod (2.1) is connected with a medicine adding annular sheet rod (2.2), the lower end of the medicine adding annular sheet rod (2.2) extends out of the medicine feeding pipe (1.3) and is connected with a swing ball collecting cover device (3), a limit boss (2.11) is arranged at the top of the slide rod (2.1), a limit baffle edge is arranged in the medicine adding bin (1), the slide rod (2.1), the medicine adding annular sheet rod (2.2) is matched with the medicine feeding pipe (1.3) in size, the medicine adding annular sheet rod (2.2) enters the medicine storage bin (1.2), when the reciprocating push rod (2) sinks, the medicine adding annular sheet rod (2.2) extends out of the medicine feeding pipe (1.3) and is connected with a swing ball collecting cover device (3), the swing ball collecting cover device (3) is connected with the swing ball collecting cover device (3) from the lower end of the medicine adding annular sheet rod (2.2.2), the swing ball collecting cover device (2.3) comprises a connecting rod (2.3.3) and a connecting rod (2.3) is connected with a connecting rod (2.3) and a connecting rod (2.3) with a connecting rod (2.3) and a connecting rod, the two hinge holes are hinged through a bolt; the gravity center of the swing ball (3.21) and the gravity center of the swing gas-collecting hood (3.23) are connected on the same side of the geometric center of the connecting rod (3.22); the density of the swing ball (3.21) is slightly smaller than that of water, and the density of the swing gas-collecting hood (3.23) is larger than that of water; the resistance mechanism comprises a strong magnetic block (1.1) and a metal suction block, wherein the strong magnetic block (1.1) is arranged in the dosing bin (1), and the metal suction block is arranged on the reciprocating push rod (2).
2. The bubble driven push rod reciprocating dry powder quantitative dosing device according to claim 1, wherein a dosing cover plate (1.5) is arranged at the top of the medicine storage bin (1.2).
3. The bubble driven push rod reciprocating dry powder quantitative dosing device according to claim 1, wherein the bubble medicament mixing tank (4) comprises a gas pipe (4.22), the lower end of the gas pipe (4.22) is communicated with one end of an aeration pipe (4.23), and the aeration pipe (4.23) is positioned at the bottom of the water storage tank (4.12); the other end of the aeration pipe (4.23) is of a sealing structure, and the top of the aeration pipe is provided with a plurality of air outlet holes.
4. A bubble driven push rod reciprocating dry powder dosing device as claimed in claim 3, wherein a gas valve (4.21) is arranged at the upper end of the gas pipe (4.22).
Priority Applications (1)
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CN202111509566.3A CN114195209B (en) | 2021-12-10 | 2021-12-10 | Bubble-driven push rod reciprocating dry powder quantitative dosing device |
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CN202111509566.3A CN114195209B (en) | 2021-12-10 | 2021-12-10 | Bubble-driven push rod reciprocating dry powder quantitative dosing device |
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CN114195209A CN114195209A (en) | 2022-03-18 |
CN114195209B true CN114195209B (en) | 2023-07-21 |
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US4045336A (en) * | 1974-08-23 | 1977-08-30 | Pauli Henrik Isteri | Method and device for oxygenating water with vibrations and under pressure strokes |
CN107159050A (en) * | 2017-07-13 | 2017-09-15 | 山东建筑大学 | Automatic floatation additive adding apparatus |
CN214495850U (en) * | 2021-01-12 | 2021-10-26 | 广州市景荣环保设备工程有限公司 | Aeration type medical sewage treatment equipment |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4469447A (en) * | 1983-03-04 | 1984-09-04 | Chatten Victor H | Submerged ornamental clock operated by air bubbles |
EP0411637A1 (en) * | 1989-08-02 | 1991-02-06 | Severino Fretta | Automatic apparatus for aerating and purifying sea-water |
US6178985B1 (en) * | 1999-06-14 | 2001-01-30 | Larry P. Robinson | Automatic drain system |
CN102887555B (en) * | 2012-10-15 | 2013-11-06 | 西安建筑科技大学 | Drug quantitative and automatic adding and mixing integrated device for water quality control of lake and reservoir water resources |
CN208182633U (en) * | 2018-02-10 | 2018-12-04 | 成都铅笔科技有限公司 | A kind of river regulation sewage-treatment plant |
KR20200078221A (en) * | 2018-12-21 | 2020-07-01 | 한화솔루션 주식회사 | Batch reactor |
CN210915483U (en) * | 2019-08-26 | 2020-07-03 | 南京金生丽水环境技术有限公司 | Portable charge device is administered in river course |
CN210885467U (en) * | 2019-09-28 | 2020-06-30 | 上海高森水处理有限公司 | Industrial sewage dephosphorization adds device |
-
2021
- 2021-12-10 CN CN202111509566.3A patent/CN114195209B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4045336A (en) * | 1974-08-23 | 1977-08-30 | Pauli Henrik Isteri | Method and device for oxygenating water with vibrations and under pressure strokes |
CN107159050A (en) * | 2017-07-13 | 2017-09-15 | 山东建筑大学 | Automatic floatation additive adding apparatus |
CN214495850U (en) * | 2021-01-12 | 2021-10-26 | 广州市景荣环保设备工程有限公司 | Aeration type medical sewage treatment equipment |
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