CN111228884A - Manual extraction element of micro plastic granules - Google Patents

Manual extraction element of micro plastic granules Download PDF

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Publication number
CN111228884A
CN111228884A CN202010040224.0A CN202010040224A CN111228884A CN 111228884 A CN111228884 A CN 111228884A CN 202010040224 A CN202010040224 A CN 202010040224A CN 111228884 A CN111228884 A CN 111228884A
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CN
China
Prior art keywords
collecting
mixing
cylinder
manual extraction
extraction device
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Granted
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CN202010040224.0A
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Chinese (zh)
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CN111228884B (en
Inventor
杨承虎
刘洋之
谢靖倩
薛彬
李铁军
刘琴
郭远明
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Zhejiang Marine Fisheries Research Institute
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Zhejiang Marine Fisheries Research Institute
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Priority to CN202010040224.0A priority Critical patent/CN111228884B/en
Publication of CN111228884A publication Critical patent/CN111228884A/en
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Publication of CN111228884B publication Critical patent/CN111228884B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/15Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/35Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/35Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • B01D33/41Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/80Accessories
    • B01D33/801Driving means, shaft packing systems or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/80Accessories
    • B01D33/803Accessories in which the filtering elements are moved between filtering operations ; Particular measures for removing or replacing the filtering elements; Transport systems for filters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

A manual extraction element of micro plastic granules specifically includes: the manual extraction device for the micro plastic particles comprises a collecting part, a mixing part, a driving part and a handheld part which are arranged from bottom to top, and further comprises a collecting part and a shell; the shell is integrally formed at the outer sides of the collecting part, the mixing part, the driving part and the handheld part, and the shell is basically cylindrical; the shell is provided with a collecting cylinder at the position of the collecting part, the bottom end of the collecting cylinder is provided with a material sucking opening, the end part of the collecting cylinder is provided with a filter screen device, and the collecting part is provided with a turbine device; a flexible filter valve is arranged at the connecting part of the mixing cylindrical wall and the horn-shaped side wall, a connector for connecting the collecting part is arranged outside the shell of the mixing part, and the flexible filter valve is a one-way valve; the drive division sets up in the upper end of mixing portion, the position that drive division and mixing portion combine is provided with the division board, the collection portion is for having bottle type drum, the bottom of collection portion is multilayer filter screen structure.

Description

Manual extraction element of micro plastic granules
Technical Field
The invention belongs to the technical field of separation and extraction of pollutants in liquid, and particularly relates to a manual extraction device for micro plastic particles.
Background
The plastic product is a material which is commonly used in daily life of human beings, and the plastic product is convenient for people to live and causes serious environmental problems. Because of the difficult degradation characteristics of plastics, they cannot be degraded naturally and must be recycled manually. In the prior art, a large amount of plastic wastes often float on the ocean, and many offshore or marine organisms die due to eating the plastic wastes comparatively.
Solid plastic particles having a diameter of less than 5mm are generally referred to as microplastics (Micro plastics). These particles are usually made of polyethylene, but also partly of polypropylene, polystyrene, etc. The micro plastic is easy to cause plastic particle water pollution, and influences aquatic organisms to cause environmental disasters. Plastic particles can remain in water for thousands of years without disappearing, and even of the biodegradable type, are difficult to degrade in a short time.
Even more alarming is that micro-plastics are transported through the marine food chain and eventually enter the human food chain, posing a threat to human health safety. Although exact harm of the micro plastic to human health is not confirmed at present, the possibility that micro plastic particles with micron and nanometer sizes enter the circulatory system of a human body is not excluded like PM2.5, and if the micro plastic is taken for a long time, some chemical substances can be accumulated in the human body, which is obviously not beneficial to human health. Thus, various countries have gone to law to prohibit the production and use of micro-plastics. At present, collection and recovery of micro-plastics in seawater have become important research subjects in the field of marine waste treatment.
Patent document 1 discloses a micro-plastic manual extraction device and an air-floating extraction device, which comprise a separation cylinder, a connecting cylinder and a mixing cylinder which are sequentially connected from top to bottom, wherein the separation cylinder, the connecting cylinder and the mixing cylinder are integrally formed into a shell structure with only one opening at the top; a valve body assembly used for controlling whether the fluid flows is arranged in the connecting cylinder; a filter screen for filtering micro plastic is arranged above or below the valve body assembly; the wall of the mixing cylinder is provided with a vent hole for gas to flow in. The air-floating type extraction device comprises the micro-plastic manual extraction device, a second filter screen is arranged in the separation cylinder, and the second filter screen is clamped with the separation cylinder; the second filter screen is arranged above the valve body assembly.
Patent document 2 discloses a micro-plastic manual extraction device and a novel extraction device, which comprises a separation cylinder, a connecting cylinder and a mixing cylinder which are sequentially connected from top to bottom, wherein the separation cylinder, the connecting cylinder and the mixing cylinder are integrally formed into a shell structure with only one opening at the top; the connecting cylinder comprises a first part, a second part and a third part from top to bottom, wherein the first part is of a structure with gradually reduced caliber from top to bottom, and the third part is of a structure with gradually increased caliber from top to bottom; the connecting cylinder is provided with a butterfly valve for controlling the liquid to flow in. Still relate to novel extraction element, not only including above-mentioned scheme, connecting cylinder and mixing drum joint still press from both sides tight piece including pressing from both sides, press from both sides tight piece and mixing drum and press from both sides the third portion of connecting cylinder in the middle of.
Patent document 1: CN 207210107U;
patent document 2: CN 207575861U.
Disclosure of Invention
The invention mainly solves the technical problems that:
the invention mainly solves the technical problems that the micro-plastic extraction device in the prior art is usually a large-scale automatic extraction device and is usually suitable for slow fixed-point type collection; the miniaturized collection equipment usually adopts a pneumatic suction device, is not high in efficiency and is not suitable for long-time use.
The invention provides a manual extraction device for micro plastic particles, which can be conveniently and flexibly applied to each collection area in a manual handheld collection mode, and achieves the technical effect of efficient collection through a simple structure.
Solution for solving the technical problem:
the utility model provides a manual extraction element of little plastic granules, its includes collection portion, mixing portion, drive division, handheld portion by the up setting down, this manual extraction element of little plastic granules still includes collection portion and casing.
The shell is integrally formed on the outer sides of the acquisition part, the mixing part, the driving part and the handheld part, and is basically cylindrical; the shell is provided with an expanded opening at the position of the collecting part, the opening is provided with a larger collecting cylinder and a horn-shaped cylinder which gradually shrinks upwards, and the opening can be selected to be in a frustum cone shape; the housing is provided with a mixing cylinder at the location of the mixing section, which is small relative to the collecting cylinder, wherein the collecting cylinder and the mixing cylinder are connected by a trumpet cylinder.
Wherein, the end part of the collecting cylinder is provided with a detachable filter screen device, wherein, the filter screen device is provided with a supporting framework and a filter screen fixed on the supporting framework, and the opening size of the mesh of the filter screen is 5-6 mm; preferably the range of this opening is set to 5 mm. Preferably, the filter screen device is mounted at the bottom of the collecting cylinder by a snap structure.
The collecting part is provided with a turbine device which is integrally provided with a base part, a turbine blade and a fan blade, wherein the fan blade is arranged on the upper part of the turbine blade. The turbine device is connected with an external spline of a rotating shaft of the driving part through an internal spline of the base part. Preferably, the turbine device is made of a rigid plastic, such as polycarbonate, high density polyurethane or glass fiber reinforced polyurethane, the use of which can reduce the weight of the micro plastic particle manual extraction device.
The flexible filter valve is a one-way valve and is provided with a fixed ring and a flexible valve body, wherein a valve port of the valve body of the filter valve is a petal-shaped opening, the valve port is closed by a flexible petal sheet in a non-working state, and the petal sheet is spread by incoming water flow in a working state so as to facilitate the suction of micro-plastics; the flexible filter valve is specifically set to ensure that the petals can not be unfolded by micro plastic particles accumulated on the filter screen in a non-working natural state. Further, the flexible filter valve is fixed to the housing by a fixing ring having an outer ring fixed to the housing and an inner ring connected between the inner ring and the outer ring by spokes.
Wherein, the shell of the mixing part is also provided with an interface for connecting the collecting part.
The driving part is arranged at the upper end of the mixing part, the isolation plate is arranged at the position where the driving part is combined with the mixing part, the driving part is internally provided with a driving motor which is fixedly arranged on the isolation plate, the driving motor is provided with a rotating shaft extending out of the isolation plate, and the rotating shaft penetrates through the mixing part and the inner ring of the flexible filter valve. The end part of the rotating shaft is provided with an external spline which is connected with an internal spline of the turbine device; the motor is connected with the control part in the handheld part.
Wherein, the shell of the hand-held part extends along the radial outer side of the mixing part with an included angle; preferably, the included angle between the hand-held part and the mixing part is adjustable; the adjusting range is 135-180 degrees; preferably, the included angle is 160 °. A control device, a power connector and a hand starting switch are arranged in the hand-held part, and the starting of the micro plastic particle manual extraction device is operated through the starting switch.
Wherein, the collecting part can be arranged side by side with the mixing part through a fixed connecting pipe and can also be fixed to a fixed position through a hose. The collecting part is a bottle-shaped cylinder, and the opening part of the collecting part is provided with a connector connecting structure extending out of the mixing part, preferably, the connecting structure is a threaded connecting structure or a rotary clamping structure. The low end of the collecting part is of a multi-layer filter screen structure, and the mesh size of the filter screen is smaller than 1 mm. Preferably, the filter screen is detachable, so that the bottle-shaped cylinder and the filter screen are convenient to clean, and collected micro plastic particles can be conveniently discharged.
Drawings
FIG. 1 is a schematic view of an extraction apparatus of the present invention;
FIG. 2 is a schematic view of a turbine apparatus of the present invention;
FIG. 3 is a cross-sectional view in the axial direction of the turbine assembly of the present invention;
FIG. 4 is a schematic view of a flexible screen retaining ring of the present invention;
FIG. 5 is a schematic view of a portion of a flexible screen of the present invention;
fig. 6 is a cross-sectional view of the drive shaft of the present invention taken along the axis.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the embodiments of the present invention are described below with the aid of the accompanying drawings; it is to be expressly understood that the following drawings are illustrative of some embodiments of the invention and are not intended as a definition of the limits of the invention.
Fig. 1 shows a manual extraction device 1 for micro plastic particles, which comprises a collecting part 10, a mixing part 20, a driving part 30 and a handheld part 40, which are arranged from bottom to top, and further comprises a collecting part 50 and a housing.
Wherein, the shell is integrally formed at the outer sides of the collecting part 10, the mixing part 20, the driving part 30 and the handheld part 40, and the shell is basically cylindrical; the shell is provided with a collecting cylinder at the position of the collecting part 10, and the bottom end of the collecting cylinder is provided with a material sucking opening; a horn cylinder 13 having an upward opening to form a frustum; the housing is provided with a mixing cylinder having a smaller cylinder diameter than the collection cylinder at the position of the mixing section, wherein the collection cylinder and the mixing cylinder are connected by a trumpet-shaped cylinder 13.
Wherein, the end part of the collecting cylinder is provided with a filter screen device 11, wherein, the filter screen device 11 is provided with a supporting framework and a filter screen fixed on the supporting framework, and the opening size of the mesh of the filter screen is 5-6 mm; preferably the size of the opening is set to 5 mm. Preferably, the filter screen device 11 is mounted at the end of the collecting cylinder through a buckle structure; the sieve means 11 may also be integrally formed at the end of the collecting cylinder.
The pickup unit 10 includes a turbine device 12, and as shown in fig. 2, the turbine device 12 is integrally provided with a base 13, a turbine blade 14, and a fan blade 15, wherein the fan blade 15 is provided on an upper portion of the turbine blade 14. The turbine device 12 is coupled to a rotating shaft 33 of the drive unit by an internal spline 16 of the base 13. The base plane of the turbine blade 14 is an inclined plane 17, the inclined plane 17 is parallel to the inclined plane of the frustum of the trumpet-shaped cylinder 13, or the angle of the inclined plane 17 along the horizontal plane is larger than the angle of the inclined plane of the frustum of the trumpet-shaped cylinder relative to the horizontal plane, so that a channel formed by the inclined plane 17 of the turbine device and the inclined plane of the frustum of the trumpet-shaped cylinder 13 is gradually reduced from the lower end to the upper end, and liquid entering the channel can be pressurized.
Preferably, the turbine means 12 is made of a rigid plastic, such as polycarbonate, high density polyurethane or glass fibre reinforced polyurethane, the use of which makes it possible to reduce the weight of the device 1 for the manual extraction of microplastic particles.
Wherein a flexible filter valve 21 is provided at the junction of the mixing cylinder wall and the trumpet-shaped side wall, the flexible filter valve 21 being a one-way valve having a fixed ring and a flexible screen, the fixed ring having an outer ring 22 and an inner ring 23 fixed to the housing, the inner ring 23 and the outer ring 22 being connected by spokes 24, as shown schematically in fig. 4. The axial surface of the fixed ring is provided with a flexible valve body 25, the valve body 25 is shown in fig. 5, wherein a valve port 26 of the valve body 25 is a petal-shaped opening, the opening is closed by flexible petals in a non-working state, and pressurized fluid can expand the petals during the operation of the turbine in a working state so as to facilitate the entry of micro-plastics; the flexibility of the flexible filter screen is set to ensure that the petals can not be propped open by micro plastic particles piled on the filter screen in a non-working natural state. A port 33 for connecting the collecting unit is provided outside the housing of the mixing unit 20, and the port is connected by a hard tube or a soft tube, so that the collecting unit 50 can be fixed to the manual collecting device 1 when the port is connected by a hard tube; when connected by a flexible tube, the collecting part 50 can be fixed at a fixed position.
Wherein, the driving part 30 is arranged at the upper end of the mixing part 20, a separation plate 32 is arranged at the position where the driving part 30 is combined with the mixing part 20, a driving motor 31 is arranged in the driving part 30, the driving motor 31 is fixedly arranged on the separation plate 32, and the motor is provided with a rotating shaft 32 extending out of the separation plate, and the rotating shaft 32 passes through the mixing part 20 and the inner ring 23 of the flexible filter valve 21. An external spline is provided at an end of the rotating shaft 32, the partition plate and the rotating shaft are connected by a seal, and the external spline is coupled to the internal spline 16 of the turbine device 12. The drive motor 31 is connected to a control unit in the hand-held unit 40.
Wherein the housing of the hand-held portion 40 extends along the radially outer side of the mixing portion with an included angle; preferably, the included angle between the hand-held part and the mixing part is adjustable, and the adjustment range is 135-180 degrees; preferably, the included angle is 160 °. A control device, a power connector and a hand starting switch 41 are arranged in the hand-held part, and the starting of the micro plastic particle manual extraction device is operated through the starting switch.
The collecting part 50 is a bottle-shaped cylinder, and the opening part thereof has a connection structure with a port 33 extending from the mixing part 20, preferably, the connection structure 33 is a screw connection structure or a rotary clamping structure. The bottom of collection portion is multilayer filter screen structure, and the mesh size of this filter screen is for being less than 1 mm. Preferably, the filter screen is detachable, so that the bottle-shaped cylinder and the filter screen are convenient to clean, and collected micro plastic particles can be conveniently discharged.
The principle and the implementation mode of the invention are explained by applying the specific embodiments, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. This summary should not be construed to limit the present invention.
Description of reference numerals:
1. a manual extraction device;
10. the device comprises a collecting part, 11 parts of a filter screen device, 12 parts of a turbine device, 13 parts of a horn-shaped cylinder, 14 parts of turbine blades, 15 parts of fan blades, 16 parts of internal splines and 17 parts of an inclined plane;
20. the mixing part, 21. flexible filter valve, 22. outer ring, 23. inner ring, 24. spoke, 25. valve body, 26. valve port;
30. a driving part 31, a driving motor 32, a rotating shaft 33 and a connecting structure;
40. the hand is not held, 41, a switch is started;
40. a collecting part.

Claims (10)

1. A manual extraction device (1) for micro plastic particles specifically comprises: the manual extraction device for the micro plastic particles comprises a collection part (10), a mixing part (20), a driving part (30) and a handheld part (40), wherein the collection part (50) and the shell are arranged from bottom to top;
the device is characterized in that the shell is integrally formed at the outer sides of the collecting part (10), the mixing part (20), the driving part (30) and the handheld part (40), and the shell is basically cylindrical; the shell is provided with a collecting cylinder at the position of the collecting part (10), and the bottom end of the collecting cylinder is provided with a material sucking opening; the collecting cylinder and the mixing cylinder are connected through the horn-shaped cylinder (13), a detachable filter screen device (11) is arranged at the end part of the collecting cylinder, a turbine device (12) is arranged on the collecting part (10), the base plane where the turbine blades (14) are located is an inclined plane (17), the inclined plane (17) is parallel to the inclined plane of the cone body of the horn-shaped cylinder (13), or the angle of the inclined plane (17) along the horizontal plane is larger than that of the cone body of the horn-shaped cylinder relative to the horizontal plane;
a flexible filter valve (21) is arranged at the connecting part of the mixing cylindrical wall and the horn-shaped side wall, the flexible filter valve (21) is a one-way valve and is provided with a fixing ring and a flexible filter screen, and a connector (33) used for connecting a collecting part is arranged outside the shell of the mixing part (20);
the driving part (30) is arranged at the upper end of the mixing part (20), a separation plate (32) is arranged at the position where the driving part (30) is combined with the mixing part (20), a driving motor (31) is arranged in the driving part (30), the driving motor (31) is fixedly arranged on the separation plate (32), the driving motor (31) is provided with a rotating shaft (32) extending out of the separation plate, and the driving motor (31) is connected with a control part in the handheld part (40);
the collecting part (50) is a bottle-shaped cylinder, the opening part of the collecting part is provided with a connecting structure of the interface (33) extending out of the mixing part (20), and the bottom end of the collecting part (50) is of a multi-layer filter screen structure.
2. A manual extraction device (1) for micro plastic particles as claimed in claim 1, wherein a flexible valve body (25) is arranged on the axial surface of the fixed ring, wherein the valve port (26) of the valve body (25) is a petal-shaped opening, the opening is closed by flexible petals in a non-working state, and the petals can be spread by pressurized fluid when the turbine operates in a working state so as to facilitate the entry of micro plastic; the flexibility of the flexible filter screen is set to ensure that the petals can not be propped open by micro plastic particles piled on the filter screen in a non-working natural state.
3. A manual extraction device (1) of microplastic particles according to any one of claims 1-2, wherein said screen means (11) has a supporting framework and a screen fixed to the supporting framework, the size of the opening of the screen mesh being 5-6 mm.
4. A manual extraction device 1 of micro plastic granules as claimed in claim 3, wherein said opening is set to 5mm in size.
5. A manual extraction device (1) of microplastic particles according to any one of claims 1 to 4, wherein said sieve means (11) is arranged at the end of the collection cylinder by snap-fit or integral.
6. Manual extraction device (1) of micro plastic particles according to any one of claims 1-2, characterized in that said turbine device (12) is integrally provided with a base (13), a turbine blade (14) and a fan blade (15), wherein the fan blade (15) is arranged on the upper part of the turbine blade (14).
7. A manual extraction device (1) of microplastic particles according to claim 1, wherein said fixed ring has an outer ring (22) and an inner ring (23) fixed to the housing, the inner ring (23) and the outer ring (22) being connected by spokes (24).
8. The manual extraction device (1) for micro plastic particles of claim 1, characterized in that the interface (33) is connected by a hard tube or a soft tube, when connected by a hard tube, the collection part (50) is fixed on the manual collection device 1; when connected by a soft tube, the collecting part (50) is fixed at a fixed position.
9. A manual extraction device (1) of microplastic particles according to claim 1, wherein the mesh size of said multilayer screen is less than 1 mm.
10. A manual extraction device (1) of microplastic particles according to claim 9, wherein said multiple layers of screens are removable to facilitate cleaning of the bottle-shaped cylinder and screens and also to facilitate discharge of the collected microplastic particles.
CN202010040224.0A 2020-01-15 2020-01-15 Manual extraction element of micro plastic granules Active CN111228884B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112358064A (en) * 2020-11-10 2021-02-12 无锡工源环境科技股份有限公司 Micro-plastic separation device based on air floatation method
CN114459869A (en) * 2022-01-26 2022-05-10 浙江省海洋水产研究所 Micro-plastic extraction and separation device in marine products

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CN101209035A (en) * 2007-12-25 2008-07-02 天津理工大学 Water-saving type aquarium self-filtering and dirt-cleaning device and working method thereof
CN102495223A (en) * 2011-12-02 2012-06-13 江苏大学 Sample introduction method and sample introduction device for microfluidics detection of fish-farming water environment
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CN207944440U (en) * 2017-05-22 2018-10-09 贵州大学 A kind of waters bank garbage recovery device
CN106363835B (en) * 2016-10-27 2018-10-12 中国科学院水生生物研究所 Micro- plastics separation method and device
CN208275062U (en) * 2018-02-07 2018-12-25 中国环境科学研究院 It is declined plastic grain separator using the suction of unified screen frame
CN209342492U (en) * 2018-12-12 2019-09-03 江南大学 A kind of device of quick separating and micro- plastics in extraction surface water
CN110470509A (en) * 2019-08-28 2019-11-19 中国科学院武汉植物园 The micro- plastic collection devices and methods therefor in handheld portable waters

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Publication number Priority date Publication date Assignee Title
CN1189208A (en) * 1995-06-16 1998-07-29 雀巢制品公司 Valve assembly
CN101209035A (en) * 2007-12-25 2008-07-02 天津理工大学 Water-saving type aquarium self-filtering and dirt-cleaning device and working method thereof
CN102495223A (en) * 2011-12-02 2012-06-13 江苏大学 Sample introduction method and sample introduction device for microfluidics detection of fish-farming water environment
CN205617855U (en) * 2016-05-17 2016-10-05 冷雄 Manual formula is dirt suction devic under water
CN106363835B (en) * 2016-10-27 2018-10-12 中国科学院水生生物研究所 Micro- plastics separation method and device
CN207944440U (en) * 2017-05-22 2018-10-09 贵州大学 A kind of waters bank garbage recovery device
CN208275062U (en) * 2018-02-07 2018-12-25 中国环境科学研究院 It is declined plastic grain separator using the suction of unified screen frame
CN209342492U (en) * 2018-12-12 2019-09-03 江南大学 A kind of device of quick separating and micro- plastics in extraction surface water
CN110470509A (en) * 2019-08-28 2019-11-19 中国科学院武汉植物园 The micro- plastic collection devices and methods therefor in handheld portable waters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112358064A (en) * 2020-11-10 2021-02-12 无锡工源环境科技股份有限公司 Micro-plastic separation device based on air floatation method
CN114459869A (en) * 2022-01-26 2022-05-10 浙江省海洋水产研究所 Micro-plastic extraction and separation device in marine products

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Inventor after: Yang Chenghu

Inventor after: Liu Yangzhi

Inventor after: Xie Jingqian

Inventor after: Xue Bin

Inventor after: Li Tiejun

Inventor after: Liu Qin

Inventor after: Guo Yuanming

Inventor before: Yang Chenghu

Inventor before: Liu Yangzhi

Inventor before: Xie Jingqian

Inventor before: Xue Bin

Inventor before: Li Tiejun

Inventor before: Liu Qin

Inventor before: Guo Yuanming