CN216160239U - Quick collection system of micro-plastic in river lake system water - Google Patents
Quick collection system of micro-plastic in river lake system water Download PDFInfo
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- CN216160239U CN216160239U CN202120882025.4U CN202120882025U CN216160239U CN 216160239 U CN216160239 U CN 216160239U CN 202120882025 U CN202120882025 U CN 202120882025U CN 216160239 U CN216160239 U CN 216160239U
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Abstract
The utility model relates to a rapid collection device for micro-plastics in a water body of a river and lake system. The suspension device can be a stainless steel cable which is connected with a stainless steel conical net by a spring buckle. The hanging device can be a telescopic rod, a telescopic rod joint is welded at the upper end of the stainless steel conical net, and the telescopic rod is in threaded connection with the stainless steel conical net. The hanging device can be long ropes at two ends, preferably comprises stainless steel ropes and telescopic rods, and the two modes can be switched according to requirements to adapt to different conditions for collection. The hanging device can be taken down when filtering a water sample. The stainless steel cone-shaped net is connected with the sample collecting device in a clamping manner. The utility model is convenient to disassemble, assemble and carry, is suitable for various sampling modes and is simple to operate.
Description
Technical Field
The utility model relates to a micro-plastic collecting device, in particular to a micro-plastic collecting device suitable for shallow water in a river and lake system with high micro-plastic content.
Background
In recent years, micro-plastics have become a new type of pollutant of great interest in the global marine and estuary coastal environments. It is estimated that 83 hundred million tons of such durable materials have been manufactured since the beginning of the mass production in the 50's of the 20 th century. 80% of the plastic is deposited in landfills or in the natural environment and gradually degrades into particles and fibers called micro-plastics (< 5 mm). Due to the special volume form of the micro plastic, the micro plastic can continuously exist in a water environment and is easy to be carried and migrated by external force such as wind power and the like to be diffused to the whole world, in addition, the micro plastic is easy to be in a hydrodynamic environment, the micro plastic can cause potential threats to marine organisms and human health through multiple reaction processes such as physical hazards to the organisms through the ingestion effect and chemical hazards to ecological environment and organisms caused by heavy metals and organic pollutants in the self-toxic chemical substances and surface enriched environment through drift, sedimentation, resuspension, biological migration, organic pollutant adsorption and the like. Therefore, researchers have been intensively studying micro plastics.
The detection of micro-plastics in the water body usually needs to gather a large amount of water samples and bring back to the laboratory analysis, and if the sampling point is more, the sample quantity is huge, brings the puzzlement for carrying the transportation. With the deep research on micro-plastics, various micro-plastic collection methods appear, and as for the current collection method, the net capture method is widely used, but the operation procedure is complex, the quantification is difficult, a water sample close to the river bank is difficult to collect, silt is easy to stir when the floating net is dragged, the collected water sample is turbid, the required micro-plastic sample is difficult to separate, the water passing area of a common steel sieve is small, the filtering speed is very slow, and the method is not suitable for field filtration at a sampling point. In order to realize rapid and simple capture, save complex operation and effectively obtain micro-plastics with smaller diameter in a water sample, a new water sample collector is required to effectively capture the micro-plastics in shallow water in a river and lake system, and the obtained sample is collected in a small amount of water and is brought back to a laboratory for subsequent treatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rapid and convenient collection device for micro-plastics in a water body, which can sample, filter and collect micro-plastics with various required particle sizes at fixed points, combines the advantages of a floating net and a steel screen, can solve the problems, effectively prevents micro-plastics from being reduced in a transfer process, and enables data results to be more accurate.
The utility model realizes the utility model purpose and adopts the following technical proposal:
a collecting device comprises a suspension device, a stainless steel conical net, a stainless steel handle, a sample collecting device and a telescopic rod. The hanging device is detachably connected with the stainless steel conical net, the stainless steel conical net is connected with the sample collecting device in a spiral mode, the steel nets can be detached and replaced, the handles are arranged on the two sides of the stainless steel conical net, and the steel nets are fixed when filtering is facilitated.
Preferably, the stainless steel conical net is made of stainless steel materials, is not randomly deformable, has an inlet diameter of 30cm and a length of 50cm, does not bring extra micro plastic particles, and effectively prevents collected micro plastic from remaining in the bent wrinkles.
Preferably, the selection of the mesh number of the stainless steel cone-shaped mesh is determined according to the size of a required micro plastic sample; the size of the stainless steel cone-shaped net is selected to be larger than 20um-50um of the size of the smallest micro plastic to be trapped, a plurality of meshes of stainless steel cone-shaped nets can be arranged, and a sample collecting device is installed when the stainless steel cone-shaped net is used.
Preferably, the hanging device can be a stainless steel hanging rope, the hanging rope with the length of 20cm is connected with the stainless steel conical net through a spring buckle, and the hanging device can be quickly taken down and hung. The hanging device can be a telescopic rod, the telescopic range of the telescopic rod is 20-100cm, the maximum diameter is 4cm, a nut is welded at a specific position of the stainless steel conical net, and the telescopic rod is in threaded connection with the collection steel net. Adopt the telescopic link can make the operation more stable, be difficult to stir the bed mud, silt is little in the sample of collection.
Preferably, the suspension device comprises a lifting rope and a telescopic rod, and the two modes can be switched according to requirements to adapt to different conditions for collection. When filtering a water sample, the hanging device can be taken down, and the handles at the two sides are held by hands to avoid the water sample from splashing.
Preferably, the stainless steel conical mesh is threadedly attached to the sample collection device, and the total length of the collection device is 10 cm. Stainless steel cone type net and collection device zonulae occludens can effectively avoid biological sample to remain in the gap of steel screen cloth and collection device junction, and can the steel screen cloth of quick replacement mesh difference, screens the micro-plastics of required particle diameter, also can be convenient for wash screen cloth and collection device after dismantling, effectively avoid remaining of last sample.
Preferably, a copper valve is arranged at the lower outlet of the stainless steel conical net, so that sampling is convenient, and a sample remained on the net wall can be obtained by secondary flushing.
The utility model has the beneficial effects that: avoid water sample spill, the unstable sediment that stirs of operation, increase the precision of stainless steel cone type net sample collection to make the collection of micro plastics more convenient, application range is wider. Rod-type and rope formula dual mode collection are in an organic whole, but dual mode switches the use, and the practicality is high, convenient to carry. The original mode of only rope type is limited by various kinds. The sample collection structure is changed into the screw connector by original binding type connection and is added the copper valve, effectively avoids the sample to remain, and one set can set up the screen cloth of a plurality of different mesh numbers, can dismantle linkage and collection device, with the screen cloth nested one by one together, conveniently carries, and the whole equipment is small and exquisite portable, but the field erection dismantlement is applicable to multiple sampling environment.
Preferably, the collection net uses steel screens with different meshes, and the whole device has no plastic parts.
Drawings
Fig. 1 is a diagram of a strap collection device.
FIG. 2 is a cross-sectional view of a sample collection device.
Fig. 3 is a drawing of the collecting device with the telescopic rod.
Fig. 4 is a diagram of an exemplary corded collection device.
The reference numbers in the figures are: 1-a rope centralizing ring, 2-a stainless steel rope, 3-a spring buckle, 4-a stainless steel handle, 5-a telescopic rod joint, 6-a stainless steel conical net, 7-a sample collecting device, 8-a copper valve, 9-a thread, 10-a nut, 11-a sample collecting pipe, 12-a sample guide pipe, 13-a valve switch, 14-a telescopic rod and 15-a stainless steel ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The utility model aims to provide an omnibearing acquisition device and method for micro-plastic in a water body, and aims to solve the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
In the embodiment shown in fig. 1, the collection device (1) comprises a suspension device, a stainless steel handle (4), a stainless steel conical net (6) and a sample collection device (7), wherein the suspension device and the stainless steel conical net (6) are connected through a spring buckle (3) and a stainless steel cable (2) and can be quickly taken down and hung up. Two sides in stainless steel cone type net (6) upper end have stainless steel handle (4), can take off rope (2) when conveniently taking and pouring the water sample, avoid the water sample to receive rope (2) influence spill stainless steel cone type net (6) to be connected through the mode of screw thread with sample collection device (7), conveniently dismantle and wash and change stainless steel cone type net (6), be equipped with copper valve (8) on sample collection device (7), make things convenient for the sample. In addition, the rope can be connected with a stainless steel cable (2) and a stainless steel ring (15) and horizontally placed in a river for sampling at different depths.
As shown in fig. 2, the sample collection device (7) comprises the following parts: screw thread (9) on the conical net, collection device screw thread (10), sample collection pipe (11), sample honeycomb duct (12), valve switch (13), collection device and stainless steel conical net (6) are connected through screw thread (9) and collection device screw thread (10) on the conical net, can realize between collection net and the sample collection device zonulae occludens and conveniently dismantle the change, also be convenient for wash, avoid sample cross influence, sample collection pipe (11) can concentrate the sample and collect the sample in the small volume, reduce follow-up work load, sample honeycomb duct (12) can be with the sample transfer to the sample bottle of collecting, valve switch (13) control the business turn over of the sample of gathering, and be favorable to the secondary to wash the sample of collecting and remaining at the net wall.
In the embodiment shown in fig. 3, the suspension device is a telescopic rod (14), a telescopic rod joint (5) is welded at the upper end of the stainless steel conical net, and the telescopic rod (14) is connected with the stainless steel conical net (6) through the telescopic rod joint (5) with threads. Adopt the telescopic link can make the operation more stable, be difficult to stir the bed mud, silt is little in the sample of collection.
In the preferred embodiment, the suspension device comprises a lifting rope and a telescopic rod, and the two modes can be switched according to requirements to adapt to different conditions for collection. Can take off linkage when filtering the water sample, avoid the water sample spill.
The use and working process of the utility model are as follows:
(1) quantitative water sample collection micro-plastic: the method comprises the steps of fixing a stainless steel lifting rope to a sample bottle (2), taking the stainless steel lifting rope down from a stainless steel cone-shaped net (6) with a required mesh number through a spring buckle (3), installing a sample collection device (7) at the lower end, holding a stainless steel handle (4), pouring a water sample with a fixed volume collected by a stainless steel barrel into the sample bottle from the upper end, collecting a filtered micro-plastic sample in the sample collection device (7) at the lower end, carrying out secondary washing if needed, washing the micro-plastic remained on the net wall into the sample collection device (7), opening a valve switch (13) to collect the obtained sample into the sample bottle, taking down the sample collection device (7) for washing, and collecting the next sample.
(2) Fixed-point sampling: install telescopic link (14) on stainless steel cone type net (6), carry out the fixed point sampling in the place of choosing, adopt the telescopic link can make the operation more stable, be difficult to stir the bed mud, silt is little in the sample of collection, makes things convenient for follow-up sample processing. Another method is to drag and sample, extend the rope on the stainless steel rope (2) and the stainless steel ring (15), make the length of both ends of the rope used for trawl equal, throw the device into the river to the required depth, make the mesh reverse with the natural water flow, then the sampler grasps one end of the rope and walks horizontally or travels with the ship along the river bank at a constant speed, and then the sampler takes out the sample after moving a suitable distance.
Claims (5)
1. The utility model provides a quick collection system of little plastics in river lake system water which characterized in that: the device mainly comprises a suspension device, a stainless steel conical net and a sample collection device, wherein connecting devices are arranged among the three parts and can be detached; wherein: the hanging device is a telescopic rod (14), the telescopic rod (14) is connected with the stainless steel conical net (6) through a telescopic rod joint (5) with threads, the operation can be more stable through the telescopic rod, bottom mud is not easy to stir, and the collected sample has small silt; the stainless steel handles (4) on the two sides of the upper end of the stainless steel conical net (6) are convenient to take, and when a water sample is poured, the water sample can be prevented from being influenced by the rope (2) and splashing out of the stainless steel conical net (6), and the stainless steel conical net is connected with the sample collecting device (7) in a threaded mode, so that the stainless steel conical net (6) is convenient to disassemble, clean and replace; the stainless steel conical net (6) is made of stainless steel materials, cannot deform at will, does not bring extra micro plastic particles, and effectively prevents collected micro plastic from remaining in bent wrinkles; collection device and stainless steel cone type net (6) lead to the screw thread and be connected with collection device, the change of convenient dismantlement, the washing of being convenient for avoids sample cross influence, sample collection pipe (11) can be concentrated the sample and collect the sample in the small volume, sample honeycomb duct (12) can be with the sample transfer to the sample bottle of collecting, the business turn over of sample that valve switch (13) control was taken, and be favorable to the secondary to wash the sample of collection residue in the net wall.
2. The device for rapidly collecting the micro-plastic in the water body of the river and lake system according to claim 1, is characterized in that: the suspension device comprises a lifting rope and a telescopic rod, and the two modes can be switched as required.
3. The device for rapidly collecting the micro-plastic in the water body of the river and lake system according to claim 1, is characterized in that: the telescopic rod, the conical net and the sample collecting device are all designed by adopting stainless steel materials.
4. The device for rapidly collecting the micro-plastic in the water body of the river and lake system according to claim 1, is characterized in that: the sample collection device is provided with a valve switch, so that sampling is convenient.
5. The device for rapidly collecting the micro-plastic in the water body of the river and lake system according to claim 1, is characterized in that: the device may also include a grip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120882025.4U CN216160239U (en) | 2021-04-27 | 2021-04-27 | Quick collection system of micro-plastic in river lake system water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120882025.4U CN216160239U (en) | 2021-04-27 | 2021-04-27 | Quick collection system of micro-plastic in river lake system water |
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| Publication Number | Publication Date |
|---|---|
| CN216160239U true CN216160239U (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120882025.4U Expired - Fee Related CN216160239U (en) | 2021-04-27 | 2021-04-27 | Quick collection system of micro-plastic in river lake system water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155549A (en) * | 2021-04-27 | 2021-07-23 | 安徽理工大学 | Quick collection system of micro-plastic in river lake system water |
-
2021
- 2021-04-27 CN CN202120882025.4U patent/CN216160239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155549A (en) * | 2021-04-27 | 2021-07-23 | 安徽理工大学 | Quick collection system of micro-plastic in river lake system water |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |