CN112129577A - Chemical exploration loose water system sediment medium collection and granularity grading device - Google Patents
Chemical exploration loose water system sediment medium collection and granularity grading device Download PDFInfo
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- CN112129577A CN112129577A CN202011121878.2A CN202011121878A CN112129577A CN 112129577 A CN112129577 A CN 112129577A CN 202011121878 A CN202011121878 A CN 202011121878A CN 112129577 A CN112129577 A CN 112129577A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/18—Devices for withdrawing samples in the liquid or fluent state with provision for splitting samples into portions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
- G01V9/007—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by detecting gases or particles representative of underground layers at or near the surface
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
- G01N2001/1012—Suspensions
- G01N2001/1025—Liquid suspensions; Slurries; Mud; Sludge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1087—Categories of sampling
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Abstract
The invention discloses a chemical exploration loose water system sediment medium collecting and granularity grading device, which comprises an isolation plate, a sampler, a sieve and a sample loading disc, wherein a double-layer silica gel sleeve is fixed in the sampler, the isolation plate is inserted between the double-layer silica gel sleeve and has excellent sealing performance, the top of the sampler is connected with the sieve, the top of the sieve is provided with sieves with different specifications, and the sampler and the sieve are tightly connected; the top of the sieve is an inverted sample loading disc, and the sieve is tightly connected with the sample loading disc; the device can filter substances such as large-particle sand, gravel and the like in the loose water system sediments, and improves the collection and grading efficiency of the loose water system sediments; a large amount of particles carried in loose sediments at the bottom of the water body can be effectively trapped in the sealed sampler, the disturbance to in-situ water system sediments in the sampling operation process is reduced, and the sieving rate can be improved when water is contained in the sieve; and finally, recovering the aqueous mixture in the sampler, and naturally settling the aqueous mixture or collecting fine sediments by using a micron filter membrane.
Description
Technical Field
The invention relates to the field of geochemical exploration, in particular to a device for collecting and grading a chemical exploration loose water system sediment medium.
Background
One of the tasks of the geochemical exploration (chemical exploration) is to research the element distribution, abnormal combination, element distribution, element migration, enrichment rule and the like of different media on the earth surface. Aiming at the different kinds of ore exploration targets of some key metal resources, the original components of the loose water system deposit medium need to be collected and subjected to particle size classification, and the content of ore forming elements of different particle sizes can reflect regional element characteristics and even find unknown key metal ore deposits. Numerous studies have shown that coarse-grained and fine-grained metal particles in surface bulk aqueous sediment media are closely related to regional metal mineral production. Therefore, the development of the collection and the granularity grading of the loose water system sediment medium and the geochemical research thereof has theoretical research significance and practical application value for mineral exploration. How to completely collect the original proportion components of a loose sediment sample from the bottom of a water system or a river bed with larger surface flow velocity and depth and place an effective sample in a sieve for granularity classification is a precondition and a technical difficulty for developing geochemical anomaly research in the current chemical exploration field.
The collection and the granularity grading method of the loose sediments at the bottom of the traditional water system or river bed are rough, the loose sediments are directly fished up from the bottom of the water system or river bed by using a shovel and then are transferred out of a water body, and then the loose sediments are placed in a target sieve for granularity grading. The method has four serious problems, the first problem is that when the shovel drags loose sediments in the water body, the in-situ sediments are disturbed and the water body becomes turbid, so that the components of the in-situ sediments are changed; the second problem is that when the flow rate of water flow is high, the spade can take away a part of loose sediments with fine particle fraction in the process of extracting in water body, so that the components of the sediments are seriously lost; the third problem is that the traditional sieve and the sample loading plate are not closely connected, and a hook and a hasp are required to be tightly connected, otherwise, the whole sample is often spilled or overturned due to improper operation; the fourth problem is that the original sediment components are lost because the micro-fine suspended substances generated in the sampling process are not utilized in the previous sampling process.
The above problems seriously affect the acquisition of the original composition of the bulk water system sediments and can even lead to changes in the distribution of geochemical anomalies that lead to artifacts.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a device for collecting and grading the granularity of a chemical exploration loose water system sediment medium, which traps original sediment through a sampler to avoid mechanical disturbance of the sediment as much as possible, then screens with different specifications are installed according to sampling requirements, then a sample loading disc is installed, the above components are tightly connected through a hook and a hasp, and finally an isolation plate is inserted into the bottom of the sampler to finish sampling of the loose water system sediment medium. Under the condition that the whole device is closed, the device is lifted out of the water body for sample screening, the water-containing mixture in the sieve is placed in a container for natural precipitation, and all size fraction components in the loose water system sediment medium can be completely collected.
The invention adopts the technical scheme that the loose water system sediment medium collecting and granularity grading device comprises an isolation plate, a sampler, a sieve and a sample loading disc, wherein the isolation plate is inserted into the sampler through a double-layer silica gel sleeve; the double-layer silica gel sleeve is horizontally fixed in a groove on the inner wall of the sampler; the sieve is tightly connected above the sampler; the top of the sieve is tightly connected with a sample containing disc, the original sediment is trapped by a sampler, then sieves with different specifications are installed according to sampling requirements, then the sample containing disc is installed, the above components are tightly connected with each other, and finally an isolation plate is inserted into the bottom of the sampler to finish sampling of the loose water system sediment medium.
Preferably, the double-layer silica gel sleeve and the sieve are arranged in multiple layers, screens with different specifications are installed on each layer of sieve, and the inner wall of the sampler is fixedly provided with the double-layer silica gel sleeves, so that the insertion of a plurality of isolation plates can be met, the layered sampling of loose sediments can be realized, and external pollutants can be prevented from entering the sieve; screens with different specifications (10 meshes, 20 meshes, 60 meshes, 100 meshes and 200 meshes) can be arranged at the top of the screen, and the size classification of loose sediments can be realized according to sampling requirements. The mesh openings of the screens are sequentially arranged from large to small, so that large-size particles can be effectively separated, water-containing filtration and separation are realized, and then the water-containing suspension is recovered to avoid the loss of fine components of a sample.
Preferably, a hook is arranged on the outer wall of the sampler, a hasp is arranged on the outer wall of the sieve, and the sieve is tightly connected above the sampler through the hook and the hasp; the hook and the hasp structure are used for tightly connecting adjacent parts, are convenient to install in front of sampling and are convenient to disassemble after sampling.
Preferably, the bottom of the sampler is blade-shaped, so that loose sediments can be easily penetrated, and the turbidity of the water body caused by the disturbance of the primary sediments is reduced as much as possible; the two ends of the sampler are communicated, so that the resistance of the sampler during installation can be reduced; the sampler with a slightly larger height can meet the sampling requirement of the sediment with the depth of 1 cm-15 cm.
Preferably, the hook comprises hook pieces fixed on the outer walls of the sampler and the sieve and metal hooks fixedly connected with the hook pieces, the hasp comprises springs and metal buckle pieces fixed on the outer walls of the sieve and the sampling disc, and the metal hooks can be connected with the metal buckle pieces in a matched mode.
Preferably, the working part of the loose water system sediment medium collecting and granularity grading device is in an inverted state integrally, all parts can be detached, the operation is convenient, and the device can quickly enter a sampling state. And after the collection is finished, pulling out the water surface, and then rotating 180 degrees to carry out normal sample screening.
The loose water system sediment medium collecting and granularity grading device has the following beneficial effects:
the loose water system sediment medium collecting and granularity grading device is used for collecting loose original sediment at the bottom of a water body, and the sampler communicated with the two ends firstly traps a target, so that the sediment can be prevented from being taken away by water flow due to mechanical disturbance in the collecting process; the top end of the sampler is provided with sieves with different specifications, so that the loose sediment granularity classification can be realized, and all size fraction components in the loose water system sediment medium can be completely collected; in the whole sampling process, the sampling device is carried out under a closed condition, so that sample pollution in the sampling process can be avoided, the element components and the component proportion of loose sediments can be retained to the maximum extent, and the problem of serious loss of the sediment components caused by spade sampling in a water body is solved; a plurality of isolation plates can be inserted into the sampler at different heights, so that layered sampling of loose sediments can be realized.
Drawings
FIG. 1 is a sectional view showing the overall structure of a loose water system sediment medium collecting and size classifying device according to the present invention.
Fig. 2 is a schematic perspective view of a loose water system sediment medium collecting and size grading device of the invention.
FIG. 3 is a schematic view of the hook and loop fastener of the present invention.
Reference numerals: 1-isolation plate, 2-sampler, 3-double layer silica gel sleeve, 4-hook, 5-hasp, 6-sieve, 7-10 mesh sieve, 8-100 mesh sieve, 9-sample tray, 10-screw, 11-hook sheet, 12-metal hook, 13-spring, 14-metal buckle sheet.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1, in the chemical exploration loose water system sediment medium collecting and granularity grading device, an isolation plate 1 is inserted into a sampler 2 through a double-layer silica gel sleeve 3; the double-layer silica gel sleeve 3 is horizontally fixed in the inner wall groove of the sampler 2; the sieve 6 is tightly connected above the sampler 2; the top of the sieve 6 is tightly connected with the sample containing disc 9, original sediments are trapped by the sampler, mechanical disturbance of the sediments is avoided as much as possible, then sieves with different specifications are installed according to sampling requirements, then the sample containing disc is installed, the above components are tightly connected, and finally an isolation plate is inserted into the bottom of the sampler to finish sampling of loose water system sediment media; before the isolation plate is inserted into the sampler, the double-layer silica gel sleeve and the sampler have excellent sealing performance; after the isolation plate is inserted into the sampler, the double-layer silica gel sleeve and the sampler also have excellent sealing performance, and the bottom of the sampler device body seals the whole device body through the isolation plate; under the condition that the whole device is closed, the device is lifted out of the water body for sample screening, the water-containing mixture in the sieve is placed in a container for natural precipitation, and all size fraction components in the loose water system sediment medium can be completely collected.
As shown in fig. 2, as a specific embodiment of the chemical exploration loose water system sediment medium collecting and particle size grading device of the present invention, the double-layer silica gel sleeve 3 and the sieve 6 are both configured to be multi-layered, and a plurality of double-layer silica gel sleeves are fixed on the inner wall of the sampler, so that a plurality of isolation plates can be inserted, layered sampling of loose sediments can be realized, and external pollutants can be prevented from entering the sieve; screens (10 meshes, 20 meshes, 60 meshes, 100 meshes and 200 meshes) with different specifications are arranged on each layer of the screen 6, the granularity classification of loose sediments can be realized according to the sampling requirement, the screen apertures are sequentially placed from large to small, large-particle-size particles can be effectively separated, the filtration and separation of water are realized, and then the water-containing suspension is recovered to avoid the loss of fine components of the sample.
As a specific embodiment of the chemical exploration loose water system sediment medium collecting and granularity grading device, a hook 4 is arranged on the outer wall of a sampler 2, a hasp 5 is arranged on the outer wall of a sieve 6, the sieve 6 is tightly connected above the sampler 2 through the hook 4 and the hasp 5, and the hook and hasp structure is used for tightly connecting adjacent parts, is convenient to install before sampling and is convenient to disassemble after sampling; the specification of a screen 7 in the sample screen 6 is-10 meshes; the size of a screen 8 in the sample screen 6 is minus 100 meshes, and a screen 7 is tightly connected with a screen of the screen 8 through a hook 4 and a hasp 5; the top of the sample sieve 6 is connected with a sample loading plate 9 and is tightly connected with a hasp 5 through a hook 4.
As a specific embodiment of the chemical exploration loose water system sediment medium collecting and granularity grading device, the bottom of the sampler 2 is blade-shaped, so that the sampler is easy to go deep into loose sediments, and the water turbidity caused by disturbance to primary sediments is reduced as much as possible; the two ends of the sampler are communicated, so that the resistance of the sampler during installation can be reduced; the sampler with a slightly larger height can meet the sampling requirement of the sediment with the depth of 1 cm-15 cm.
As shown in fig. 3, as an embodiment of the chemical detection loose water system sediment medium collecting and size grading device of the present invention, the hook 4 includes a hook piece 11 fixed on the outer walls of the sampler 2 and the sieve 6 by using a screw 10 and a metal hook 12 fixedly connected with the hook piece 11, the buckle 5 includes a spring 13 and a metal buckle piece 14 fixed on the outer walls of the sieve 6 and the sample loading plate 9 by using the screw 10, and the metal hook 12 can be connected with the metal buckle piece 14 in a matching manner.
The whole working part of the loose water system sediment medium collecting and granularity grading device is in an inverted state, all parts can be detached, the operation is convenient, and the device can quickly enter a sampling state. And after the collection is finished, pulling out the water surface, and then rotating 180 degrees to carry out normal sample screening.
When the device is used each time, firstly, a sampler 2 of a loose water system sediment medium collecting and grading device is placed in the loose sediment, secondly, a sieve 6 is connected and is reinforced by a hook 4 and a hasp 5, then a sample plate 9 is connected and is reinforced by the hook 4 and the hasp 5, so that the whole device has good tightness, then, a separation plate 1 is inserted into a double-layer silica gel sleeve 3, the whole device is pulled out of a water body to finish sampling, and finally, the sieve 6 is used for grading the granularity of the loose sediment. As described above, the water-containing sediments in the closed device body sequentially pass through the screens with different specifications, so that the purposes of sample collection and particle size classification are effectively fulfilled at the same time. In the whole sampling process, the sampling device is carried out under the closed condition, so that the sample pollution in the sampling process can be avoided, the element components and the component proportion of loose sediments can be retained to the maximum extent, and the problem of serious loss of the sediment components caused by spade sampling in a water body is solved. A plurality of isolation plates can be inserted into the sampler at different heights, so that layered sampling of loose sediments can be realized.
Claims (5)
1. A chemical exploration loose water system sediment medium collecting and granularity grading device is characterized by comprising an isolation plate (1), a sampler (2), a sieve (6) and a sample containing disc (9), wherein the isolation plate (1) is inserted into the sampler (2) through a double-layer silica gel sleeve (3); the double-layer silica gel sleeve (3) is horizontally fixed in an inner wall groove of the sampler (2); the sieve (6) is tightly connected above the sampler (2); the top of the sieve (6) is tightly connected with the sample loading disc (9).
2. A chemical exploration loose water system sediment medium collecting and granularity grading device according to claim 1, characterized in that the double-layer silica gel sleeve (3) and the sieve (6) are arranged into multiple layers, and each layer of the sieve (6) is provided with a sieve with different specifications.
3. A chemical exploration loose water system sediment medium collecting and granularity grading device according to claim 1, characterized in that a hook (4) is arranged on the outer wall of the sampler (2), a hasp (5) is arranged on the outer wall of the sieve (6), and the sieve (6) is tightly connected above the sampler (2) through the hook (4) and the hasp (5).
4. A chemical exploration loose water system sediment medium collecting and granularity grading device according to claim 1, characterized in that the bottom of the sampler (2) is knife-edge shaped.
5. A chemical exploration loose water system sediment medium collecting and granularity grading device according to claim 3, characterized in that the hook (4) comprises a hook piece (11) fixed on the outer walls of the sampler (2) and the sieve (6) and a metal hook (12) fixedly connected with the hook piece (11), the hasp (5) comprises a spring (13) and a metal buckle piece (14) fixed on the outer walls of the sieve (6) and the sample loading disc (9), and the metal hook (12) can be matched and connected with the metal buckle piece (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011121878.2A CN112129577A (en) | 2020-10-20 | 2020-10-20 | Chemical exploration loose water system sediment medium collection and granularity grading device |
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| CN202011121878.2A CN112129577A (en) | 2020-10-20 | 2020-10-20 | Chemical exploration loose water system sediment medium collection and granularity grading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901357A (en) * | 2022-11-09 | 2023-04-04 | 自然资源部第一海洋研究所 | Automatic sampling device and method for seabed soft mud layer sediment |
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2020
- 2020-10-20 CN CN202011121878.2A patent/CN112129577A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901357A (en) * | 2022-11-09 | 2023-04-04 | 自然资源部第一海洋研究所 | Automatic sampling device and method for seabed soft mud layer sediment |
| CN115901357B (en) * | 2022-11-09 | 2024-01-26 | 自然资源部第一海洋研究所 | Automatic sampling device and method for sediment of seabed soft mud layer |
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