CN115258069A - Water pollution treatment device and using method thereof - Google Patents

Water pollution treatment device and using method thereof Download PDF

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Publication number
CN115258069A
CN115258069A CN202210939456.9A CN202210939456A CN115258069A CN 115258069 A CN115258069 A CN 115258069A CN 202210939456 A CN202210939456 A CN 202210939456A CN 115258069 A CN115258069 A CN 115258069A
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China
Prior art keywords
water
pollution treatment
aerator
water pollution
case
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CN202210939456.9A
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Chinese (zh)
Inventor
陈经纬
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Hohai University HHU
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Hohai University HHU
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Priority to CN202210939456.9A priority Critical patent/CN115258069A/en
Publication of CN115258069A publication Critical patent/CN115258069A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/32Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00Aeration of stretches of water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B15/00Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/10Devices for removing the material from the surface
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/008Mobile apparatus and plants, e.g. mounted on a vehicle
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/009Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

The invention discloses a water pollution treatment device and a using method thereof. The beneficial effects are that: through the surface of water garbage collector who sets up, the electric push rod, micro motor, the blade disc, aerator and aeration machine, adopt surface of water garbage collector to carry out the surface of water floating garbage and salvage, broken supplementary collection carries out simultaneously, carry out aeration oxygenation operation to the aquatic, make water plant reproduction rate reduce, handle waterborne and underwater water pollution simultaneously, thereby the result of use of device has been improved, floater through setting up, optical line sensors, solar cell panel, battery and rotating electrical machines, but adopt the showy formula structure, can place and use on arbitrary surface of water, carry out solar energy electric energy simultaneously and supply, the maximum efficiency carries out the automatic electric energy and supplyes, do not rely on the cable power supply, can carry out the water pollution to different waters and handle, thereby flexibility and convenience when having improved the device and using.

Description

Water pollution treatment device and using method thereof
Technical Field
The invention relates to the technical field of water pollution treatment devices, in particular to a water pollution treatment device and a using method thereof.
Background
The water pollution has different types, and the rubbish of abandoning at will floats and causes water pollution easily on the surface of water, because the abundant aquatic plant of oxygen deficiency growth also can cause the water pollution of different degrees in the river course simultaneously, need use dedicated processing apparatus to handle this type of pollution.
However, current water pollution treatment device is when floating rubbish and water plant to the surface of water, be difficult to carry out effectual solution and handle, the condition of foreign matter jam often appears, water plant in the waters is difficult to radical cure simultaneously, cause the not good condition of quality of water condition, thereby the result of use of device has been reduced, secondly, current water pollution treatment device adopts fixed structure more, owing to need carry out cable power supply reason, only can handle to single waters, thereby flexibility and convenience when having reduced the device use, consequently, the urgent need for novel water pollution treatment device to solve these problems.
Disclosure of Invention
The present invention is directed to solving the above problems and to providing a water pollution treatment apparatus and a method for using the same.
The invention achieves the above purpose through the following technical scheme:
the utility model provides a water pollution treatment device, includes quick-witted case, surface of water garbage collector and aerator, be provided with the sealing door on the quick-witted case lateral wall, machine case upper end middle part is provided with the rotating electrical machines, the power take off end of rotating electrical machines is provided with solar cell panel, light sensor is installed to solar cell panel upper end one side, solar cell panel bottom one side is provided with flexible wire, flexible wire periphery is provided with the wiring mouth, flexible wire bottom is connected with the battery, battery one side is provided with microprocessor, microprocessor one side is connected with communication module, the aerator is installed to communication module below, the aerator bottom is connected with the aerator, machine case bottom is fixed with the mounting panel, the mounting panel bottom is provided with three floater, be provided with three fixed plate on the mounting panel, install the warning light on the fixed plate, electric telescopic handle is all installed to the fixed plate bottom, micro motor is installed to electric telescopic handle's flexible end, micro motor's power take off end installs the drain pipe, fixed plate below one side is provided with the connecting plate, surface of water garbage collector one end is fixed with surface of water garbage collector, install the screen panel in the surface of water garbage collector, the surface garbage collector bottom installs the suction pump, the screen panel.
Furthermore, the sealing door is rotatably connected with the case, the rotating motor is connected with the case through bolts, and the solar cell panel is connected with the rotating motor through keys.
Through adopting above-mentioned technical scheme, sealing door can play sealed effect of closing, the rotating electrical machines can drive solar cell panel rotatory, carries out the free adjustment of angle.
Furthermore, the light ray sensor is connected with the solar cell panel through screws, the wiring port is formed in the case, and the telescopic lead penetrates through the wiring port and is electrically connected with the storage battery.
By adopting the technical scheme, the light sensor can check the intensity of external light, so that the solar cell panel always faces to sunlight, and the wiring port can transmit electric energy to the storage battery.
Furthermore, the microprocessor is connected with the case through bolts, and the communication module is electrically connected with the microprocessor.
By adopting the technical scheme, the microprocessor can control the on-off of each device, and the communication module can be connected with an external device for remote control.
Further, the aerator is bolted to the case, and the aerator is bolted to the aerator.
Through adopting above-mentioned technical scheme, the aeration machine with the aerator cooperation is used, can aerate to oxygenate to aquatic, avoids water plants to breed wantonly.
Furthermore, the mounting plate is welded with the case, and the floating ball is connected with the mounting plate through bolts.
By adopting the technical scheme, the mounting plate is matched with the floating ball for use and can float on the water surface freely.
Further, the fixed plate with the mounting panel welding, the warning light with fixed plate bolted connection, electric telescopic handle with fixed plate bolted connection, micro motor with electric telescopic handle bolted connection, the blade disc with the micro motor key-type connection.
Through adopting above-mentioned technical scheme, the warning light can play the warning at night and show the effect of overall, electric telescopic handle can drive micro motor freely goes up and down, micro motor can drive the blade disc rotates, realizes placing its jam to the stirring of floating debris the surface of water garbage collector mouth.
Further, the connecting plate with the mounting panel welding, the surface of water garbage collector with mounting panel bolted connection.
Through adopting above-mentioned technical scheme, but surface of water garbage collector automatic collection surface of water floating impurity such as rubbish clears up the surface of water, avoids it to cause water pollution.
Furthermore, the screen panel with surface of water garbage collector draw-in groove is connected, the screen panel is the flexible plastic material, the suction pump with surface of water garbage collector bolted connection, the drain pipe with suction pump threaded connection.
Through adopting above-mentioned technical scheme, the screen panel can load and collect rubbish, the suction pump can with clean water in the surface of water garbage collector is followed the drain pipe is discharged for rubbish is stayed in the screen panel.
The invention has the beneficial effects that:
1. in order to solve the problems that the existing water pollution treatment device is difficult to effectively solve and treat when aiming at water surface floating garbage and water plants, the situation of foreign matter blockage often occurs, and meanwhile, the water plants in the water area are difficult to radically treat, so that the situation of poor water quality is caused, and the using effect of the device is reduced, the water surface garbage collector is adopted for salvaging the water surface floating garbage by adopting the water surface garbage collector, and simultaneously crushing auxiliary collection is carried out to carry out aeration and oxygenation operation on the water, so that the water plant reproduction rate is reduced, and meanwhile, the water pollution on the water and under the water is treated, and the using effect of the device is improved;
2. in order to solve the problems that the existing water pollution treatment device mostly adopts a fixed structure and only can treat a single water area due to the fact that cable power supply is needed, so that the flexibility and convenience of the device in use are reduced, a floatable structure is adopted by arranging a floating ball, a light sensor, a solar cell panel, a storage battery and a rotating motor, the device can be placed on any water surface for use, solar electric energy is supplied at the same time, automatic electric energy supplement is performed at the maximum efficiency, cable power supply is not relied on, water pollution treatment can be performed on different water areas, and therefore the flexibility and convenience of the device in use are improved;
drawings
FIG. 1 is a front view of a water pollution treatment apparatus according to the present invention;
FIG. 2 is a front sectional view of a cabinet of a water pollution treatment apparatus according to the present invention;
FIG. 3 is an enlarged view of the point A of the water pollution treatment apparatus according to the present invention;
FIG. 4 is a block diagram of an electric circuit of a water pollution treatment apparatus according to the present invention.
The reference numerals are illustrated below:
1. a chassis; 2. a water surface garbage collector; 3. an aerator; 4. a floating ball; 5. a rotating electric machine; 6. a solar panel; 7. a light sensor; 8. a telescopic lead; 9. a wiring port; 10. a storage battery; 11. a microprocessor; 12. a communication module; 13. a sealing door; 14. an aerator; 15. a fixing plate; 16. a warning light; 17. mounting a plate; 18. an electric telescopic rod; 19. a cutter head; 20. a micro motor; 21. a connecting plate; 22. a net cover; 23, a water pump; 24. and a drain pipe.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-4, a water pollution treatment device comprises a case 1, a water surface garbage collector 2 and an aerator 3, wherein a sealing door 13 is arranged on one side wall of the case 1, a rotating motor 5 is arranged in the middle of the upper end of the case 1, a power output end of the rotating motor 5 is provided with a solar cell panel 6, a light sensor 7 is installed on one side of the upper end of the solar cell panel 6, a telescopic wire 8 is arranged on one side of the bottom end of the solar cell panel 6, a wiring port 9 is arranged on the periphery of the telescopic wire 8, a storage battery 10 is connected to the bottom end of the telescopic wire 8, a microprocessor 11 is arranged on one side of the storage battery 10, a communication module 12 is connected to one side of the microprocessor 11, an aerator 14 is installed below the communication module 12, the bottom end of the aerator 14 is connected with the aerator 3, a mounting plate 17 is fixed to the bottom end of the case 1, a three floating balls 4 are arranged at the bottom end of the mounting plate 17, a fixing plate 15 is provided with a warning lamp 16 is installed on the fixing plate 15, an electric telescopic rod 18 is installed at the bottom end of the electric telescopic rod 18, a micro motor 20 is installed at the output end of the micro motor 20, a connecting plate 19 is installed at one side of the water surface garbage collector 21, a water surface garbage collector 2, a water surface garbage collector 21 is installed at one end of the water surface 2, and a water pump 23 is installed at one end of the water pump 2, and a water pump 23, and a water surface drain pipe 23 is installed at the water pump 2, and a water pump 23 is installed at the water surface 2.
In this embodiment, sealing door 13 with machine case 1 rotates to be connected, rotating electrical machines 5 with machine case 1 bolted connection, solar cell panel 6 with rotating electrical machines 5 key-type connection, sealing door 13 can play the sealed effect of closing, rotating electrical machines 5 can drive solar cell panel 6 rotatory, carries out the free adjustment of angle.
In this embodiment, the light sensor 7 is in screwed connection with the solar cell panel 6, the wiring port 9 is formed in the case 1, the telescopic lead 8 penetrates through the wiring port 9 and is electrically connected with the storage battery 10, the light sensor 7 can check the intensity of external light, so that the solar cell panel 6 faces sunlight all the time, and the wiring port 9 can transmit electric energy to the storage battery 10.
In this embodiment, the microprocessor 11 is connected to the chassis 1 by bolts, the communication module 12 is electrically connected to the microprocessor 11, the microprocessor 11 can control the on/off of each device, and the communication module 12 can be connected to an external device for remote control.
In this embodiment, the aerator 14 is bolted to the cabinet 1, the aerator 3 is bolted to the aerator 14, and the aerator 14 is used in cooperation with the aerator 3, so that aeration and oxygenation can be performed on water, and water plants can be prevented from being multiplied.
In this embodiment, the mounting plate 17 is welded to the case 1, the floating ball 4 is bolted to the mounting plate 17, and the mounting plate 17 and the floating ball 4 are used in cooperation and can float freely on the water surface.
In this embodiment, the fixed plate 15 with the mounting panel 17 welds, the warning light 16 with 15 bolted connection of fixed plate, electric telescopic handle 18 with 15 bolted connection of fixed plate, micro motor 20 with 18 bolted connection of electric telescopic handle, the blade disc 19 with 20 key-type connections of micro motor, warning light 16 can play the warning and show the effect of overall at night, electric telescopic handle 18 can drive micro motor 20 freely goes up and down, micro motor 20 can drive 19 rotations of blade disc realize placing its jam to the stirring of floating debris 2 mouths of surface of water rubbish collector.
In this embodiment, the connecting plate 21 with mounting panel 17 welds, surface of water garbage collector 2 with mounting panel 17 bolted connection, but 2 automatic collection surface of water garbage collector impurity such as levitate rubbish clear up the surface of water, avoid it to cause water pollution.
In this embodiment, the screen panel 22 with 2 draw-in grooves of surface of water garbage collector are connected, the screen panel 22 is the flexible plastic material, suction pump 23 with 2 bolted connection of surface of water garbage collector, drain pipe 24 with suction pump 23 threaded connection, the screen panel 22 can load and collect rubbish, suction pump 23 can with clean water in the surface of water garbage collector 2 is followed drain pipe 24 discharges, makes rubbish stay in the screen panel 22.
A use method of the water pollution treatment device comprises the following steps: firstly, the floating ball 4 and the mounting plate 17 are stably placed on the water surface, an external cable can be used for fixing, the floating movement of the floating ball is realized in a larger area, then the floating ball is connected with the communication module 12 through external equipment, the remote control use is realized, then a control quality instruction is sent through the microprocessor 11, the water surface garbage collector 2 automatically operates, the water suction pump 23 continuously sucks and discharges water entering the water surface garbage collector 2 and the mesh enclosure 22 from the outside, the garbage and other impurities floating on the water surface are sucked into the mesh enclosure 22 by water flow, meanwhile, the electric telescopic rod 18 drives the micro motor 20 to descend, the micro motor 20 drives the cutter head 19 to rotate, the crushing and cutting of the larger garbage and the impurities are realized, the blockage around the water surface garbage collector 2 is avoided, the water surface garbage collector 2 can carry out quick salvage operation, then the aerator 14 and the aerator 3 operate simultaneously, aeration is carried out on the lower part of the water area, the propagation of excessive harmful water plants is avoided, the effect of water purification is realized, the high-efficiency treatment effect on water pollution is realized, and the device can be used efficiently.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (10)

1. A water pollution treatment device is characterized in that: the water surface garbage collector comprises a case (1), a water surface garbage collector (2) and an aerator (3), wherein a sealing door (13) is arranged on one side wall of the case (1), a rotating motor (5) is arranged in the middle of the upper end of the case (1), a solar cell panel (6) is arranged at the power output end of the rotating motor (5), a light sensor (7) is arranged on one side of the upper end of the solar cell panel (6), a telescopic lead (8) is arranged on one side of the bottom end of the solar cell panel (6), a wiring port (9) is arranged on the periphery of the telescopic lead (8), a storage battery (10) is connected to the bottom end of the telescopic lead (8), a microprocessor (11) is arranged on one side of the storage battery (10), a communication module (12) is connected to one side of the microprocessor (11), the aerator (14) is arranged below the communication module (12), the aerator (3) is connected to the bottom end of the aerator (14), a mounting plate (17) is fixed to the bottom end of the case (1), three floating balls (4) are arranged at the bottom end of the mounting plate (17), three fixing plates (15) are provided with three fixing plates (15), warning lamps (16) and electric telescopic rods (18) are arranged on the fixing plates (18), micro motor (20) are installed to the flexible end of electric telescopic handle (18), blade disc (19) are installed to the power take off end of micro motor (20), fixed plate (15) below one side is provided with connecting plate (21), connecting plate (21) one end is fixed with surface of water rubbish collector (2), install screen panel (22) in surface of water rubbish collector (2), suction pump (23) are installed to surface of water rubbish collector (2) bottom, drain pipe (24) are installed to suction pump (23) one end.
2. A water pollution treatment apparatus as claimed in claim 1, wherein: the sealing door (13) is rotationally connected with the case (1), the rotating motor (5) is connected with the case (1) through bolts, and the solar cell panel (6) is connected with the rotating motor (5) through keys.
3. The water pollution treatment apparatus according to claim 1, wherein: the light ray sensor (7) is in screw connection with the solar cell panel (6), the wiring port (9) is formed in the case (1), and the telescopic lead (8) penetrates through the wiring port (9) and is electrically connected with the storage battery (10).
4. A water pollution treatment apparatus as claimed in claim 1, wherein: the microprocessor (11) is connected with the case (1) through bolts, and the communication module (12) is electrically connected with the microprocessor (11).
5. A water pollution treatment apparatus as claimed in claim 1, wherein: the aerator (14) is connected with the case (1) through bolts, and the aerator (3) is connected with the aerator (14) through bolts.
6. A water pollution treatment apparatus as claimed in claim 1, wherein: the mounting plate (17) is welded with the case (1), and the floating ball (4) is connected with the mounting plate (17) through bolts.
7. A water pollution treatment apparatus as claimed in claim 1, wherein: fixed plate (15) with mounting panel (17) welding, warning light (16) with fixed plate (15) bolted connection, electric telescopic handle (18) with fixed plate (15) bolted connection, micro motor (20) with electric telescopic handle (18) bolted connection, blade disc (19) with micro motor (20) key-type connection.
8. The water pollution treatment apparatus according to claim 1, wherein: the connecting plate (21) with mounting panel (17) welding, surface of water garbage collector (2) with mounting panel (17) bolted connection.
9. A water pollution treatment apparatus as claimed in claim 1, wherein: mesh enclosure (22) with surface of water garbage collector (2) draw-in groove is connected, mesh enclosure (22) are the flexible plastic material, suction pump (23) with surface of water garbage collector (2) bolted connection, drain pipe (24) with suction pump (23) threaded connection.
10. A method for using a water pollution treatment device, which is applied to the water pollution treatment device of any one of claims 1 to 9, and is characterized in that: firstly will floater (4) and mounting panel (17) steadily are placed on the surface of water, and accessible external cable fixes, makes it float in a great region activity, connects through the peripheral equipment then communication module (12) carry out the remote control use, passes through after that microprocessor (11) send the control matter instruction, surface of water rubbish collector (2) automatic operation, suction pump (23) constantly enters into the outside surface of water rubbish collector (2) and the water in screen panel (22) is inhaled and is discharged, and levitate rubbish and other impurity are inhaled by rivers on the surface of water in screen panel (22), simultaneously electric telescopic handle (18) drive micro motor (20) descend, micro motor (20) drive cutter disc (19) rotate, realize the broken cutting to great rubbish and impurity, avoid right cause the jam around the surface of water rubbish collector (2), three rubbish collector (2) can carry out quick salvage operation, immediately aeration machine (14) with aerator (3) while operation, carry out the oxygenation processing to the below to the quality of water, avoid the harmful water collector to play the oxygenation processing in the waters, make the harmful water purification effect to carry out the aeration more, make the pollution effect.
CN202210939456.9A 2022-08-05 2022-08-05 Water pollution treatment device and using method thereof Pending CN115258069A (en)

Priority Applications (1)

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CN202210939456.9A CN115258069A (en) 2022-08-05 2022-08-05 Water pollution treatment device and using method thereof

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Application Number Priority Date Filing Date Title
CN202210939456.9A CN115258069A (en) 2022-08-05 2022-08-05 Water pollution treatment device and using method thereof

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CN115258069A true CN115258069A (en) 2022-11-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116332384A (en) * 2023-03-31 2023-06-27 中国水利水电第六工程局有限公司 Aeration oxygenation equipment and water quality improvement method
CN116854270A (en) * 2023-09-05 2023-10-10 呼和浩特市生态环境监控中心 Mode-adjustable sewage energy-saving processor based on water environment ecological monitoring
CN117947839A (en) * 2024-03-27 2024-04-30 国家***北海海洋工程勘察研究院 Underwater micro-plastic collecting device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH105791A (en) * 1996-06-24 1998-01-13 Unyusho Kowan Gijutsu Kenkyusho Float type water quality improving device
CN206055512U (en) * 2016-08-11 2017-03-29 河北智恒达塔业有限公司 A kind of solar lighting tower with automatic light tracking function
CN213508350U (en) * 2020-06-30 2021-06-22 河海大学 Vortex-cutting dirt-removing barrel and vortex-cutting dirt-removing barrel group device
CN215245405U (en) * 2021-07-30 2021-12-21 山东华宇工学院 Overwater garbage collector
CN217078670U (en) * 2021-09-16 2022-07-29 海南三友海洋科技有限公司 Floater collection device for ocean science

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH105791A (en) * 1996-06-24 1998-01-13 Unyusho Kowan Gijutsu Kenkyusho Float type water quality improving device
CN206055512U (en) * 2016-08-11 2017-03-29 河北智恒达塔业有限公司 A kind of solar lighting tower with automatic light tracking function
CN213508350U (en) * 2020-06-30 2021-06-22 河海大学 Vortex-cutting dirt-removing barrel and vortex-cutting dirt-removing barrel group device
CN215245405U (en) * 2021-07-30 2021-12-21 山东华宇工学院 Overwater garbage collector
CN217078670U (en) * 2021-09-16 2022-07-29 海南三友海洋科技有限公司 Floater collection device for ocean science

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116332384A (en) * 2023-03-31 2023-06-27 中国水利水电第六工程局有限公司 Aeration oxygenation equipment and water quality improvement method
CN116332384B (en) * 2023-03-31 2024-05-28 中国水利水电第六工程局有限公司 Aeration oxygenation equipment and water quality improvement method
CN116854270A (en) * 2023-09-05 2023-10-10 呼和浩特市生态环境监控中心 Mode-adjustable sewage energy-saving processor based on water environment ecological monitoring
CN117947839A (en) * 2024-03-27 2024-04-30 国家***北海海洋工程勘察研究院 Underwater micro-plastic collecting device

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Application publication date: 20221101

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