CN107560889A - A kind of big flux bottom mud column-shaped sampling apparatus and the method for sampling - Google Patents
A kind of big flux bottom mud column-shaped sampling apparatus and the method for sampling Download PDFInfo
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- CN107560889A CN107560889A CN201710749381.7A CN201710749381A CN107560889A CN 107560889 A CN107560889 A CN 107560889A CN 201710749381 A CN201710749381 A CN 201710749381A CN 107560889 A CN107560889 A CN 107560889A
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Abstract
A kind of big flux bottom mud column-shaped sampling apparatus and the method for sampling, this is mainly included hanger bracket (1), upper connecting rod (2) using device, cavity (4), counterweight connecting rod (6), counterweight (7), baffle plate (8), latch (9), pulley (10), control of sailing rope (11), drags plate rope (12), hawser (14), plummet (15) and sampling pipe (19).The big flux bottom mud column-shaped sampling apparatus of the present invention is a set of accurate layering that can realize big flux bed mud sample simultaneously, and the deficiency of bottom mud column-shaped sampling can be avoided using it, realizes a technological break-through in sample collection field.
Description
Technical field
The present invention relates to bottom mud in lake cylindrical sample harvester to research and develop field, is a kind of larger flux specifically
Bottom mud column-shaped sampling apparatus and its application method.
Background technology
Bed mud is basin Lakes matter and energy " source " and " remittance ", continuously recites region or even global environment becomes
The information of change.The interaction of lake mud/water termination is to influence the major reason of lake water quality.Under certain condition, accumulation is arrived
Various pollutants in lake sediment, water body in lake can be re-released into again, secondary pollution is formed to water body.Therefore, how
The sample near undisturbed mud/water termination is got, is the crucial and basic of research lake pollution process mechanism.
The bed mud post core sampling apparatus species developed at present is various, mainly includes gravity sampler, piston type samples
Device, link-type sampler, freezing type sampler and drilling type sampler etc..Wherein portable gravity sampler is in lacustrine deposit
Using generally in thing research, there is the characteristics of being easy to carry, be simple to operate.Adapt to the when space division for studying pollutant in bed mud
Cloth properties study, such as heavy metal, the traditional organic pollutions of PAHs.With the updating operator of pollutant, and pollution control
Demand, research work progressively turn to the research of the pollutants such as the extremely low hormone of content, antibiotic, man-made radioactivity nuclide.Due to
The ambient concentration of above pollutant is extremely low.When carrying out such research, on the one hand need to improve Instrumental Analysis precision；On the other hand,
Also need to increase sample size.The sample tube inner diameter of routine sampling device is generally 55mm at present, and some is even more small.With in sampling pipe
Footpath is 55mm calculating, and the sample size that such sampler can be collected into is about 17g/cm, and the sample size of gained is difficult to meet single
Pollutant analysis, multi-pollutant can not be realized while analyzed.
The mode of solution sample size deficiency mainly has following several at present：
(1) grab type sampler is used, the type sampler can adopt bed mud weight up to more than 1kg, can meet all kinds of dirts
The analytical and detecting work of thing is contaminated, but is in sampling process the problem of the type sampler, sample is all mixed, it is impossible to which realization is cutd open
Face is layered, and its result of study can not effectively reflect pollution history.
(2) more foundation mud post cores are gathered in same sampled point, after every post core divides sample, the sample of same layer is mixed, with
Increase sample size.But lake-bottom is generally not smooth, different bed mud post cores are asynchronous, cause error to occur.It is and not smart
True divides sample can also be so that error increases.Thus, it is ensured that homogeneity, it is necessary to using the method for increasing caliber.
(3) some manufacturers attempt to increase sampling pipe caliber, and to obtain more Multi-example, but sampler is top at present
Suction, when caliber is more than 75mm, negative pressure top is inhaled can be ineffective, causes the bed mud in pipe to be come off from bottom.
Based on considerations above, larger flux bottom mud column-shaped sampling apparatus of the invention and method overcome lacking for current techniques
Point, collection example weight can be to analyze multiclass super low concentration pollutant simultaneously to provide safeguard up to more than 60g/cm.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of big flux bottom mud column-shaped sampling apparatus and sampling
Method.
According to the first aspect of the invention, there is provided a kind of big flux bottom mud column-shaped sampling apparatus (sampler), this is using dress
Put including hanger bracket (1), upper connecting rod (2), cavity (4), counterweight connecting rod (6), counterweight (7), baffle plate (8), latch (9), pulley
(10), control of sailing rope (11), drag plate rope (12), hawser (14), plummet (15), sampling pipe (19)；Wherein：
Hanger bracket (1) upper end is fixedly connected with hawser (14), and hawser (14) passes through the central perforation of plummet (15), hanger bracket
(1) be fixedly installed cross bar (20) on, cross bar (20) and upper connecting rod (2) can be up and down be connected；Under cross bar (20)
A pair of peg buttons (16) are provided with hanger bracket (1) side wall of side, peg button (16) is that the italic equipped with spring is buckled；
Upper connecting rod (2) lower end is fixedly connected with cavity (4), and peg (3) is fixedly installed in upper connecting rod (2)；
Cavity (4) lower end is connected with counterweight connecting rod (6), and cavity (4) bottom center has opening, openend and sampling pipe
(19) upper end connects, and upper opening portion is provided with leakproof one-way valve (17)；
Counterweight connecting rod (6) shares four, is oppositely arranged on sampling pipe (19) periphery two-by-two, and counterweight (7) is arranged on reconnection
The bottom of bar (6)；
Counterweight connecting rod (6) lower end is provided with a pair of baffle plates (8), and each baffle plate (8) is pivotably coupled to two and matches somebody with somebody reconnection
Between bar (6)；Connection cross bar (21) is provided between corresponding two counterweight connecting rods (6), in connection cross bar (21) and baffle plate
(8) top is respectively arranged with pin-and-hole, and latch (9) is inserted into the pin-and-hole of connection cross bar (21) and baffle plate (8) from top to down；
Latch (19) upper end connection control of sailing rope (11), control of sailing rope (11) are connected with peg (3)；
Plate rope (12) is dragged in the connection of baffle plate (8) end, is dragged plate rope (12) and is connected with peg (3).
Under preferable case, wherein on cavity (4) and counterweight (7) it is each setting 4 pulleys (10), for control of sailing rope (11)
Coordinate with plate rope (12) is dragged.
Under concrete condition, it is connected at the top of sampling pipe (19) by flange (5) with cavity (4), outer spiral shell is arranged at flange (5) top
Line, the openend of cavity (4) are provided with sealing ring (18) and internal thread, by screwing flange (5) crush seal circle (18) so that
Lateral expansion after sealing ring (18) is longitudinally extruded, with the effect for reaching clamping sampling pipe (19) and sealing.
According to the second aspect of the invention, there is provided a kind of big flux column substrate sludge sampling method, comprise the following steps：
(1) sampling pipe loads
Sampling pipe (19) is loaded by sampling apparatus lower end weight port；With the openend clamping of cavity (4)；
(2) water under sampling apparatus
After sampling pipe (19) installs, by plummet (15) as on sampling boat, sampling apparatus main body is put into water body, and slowly
Descending, now hawser (14) firmly tangles hanger bracket (1), and upper connecting rod (2) is tangled by cross bar (20)；
(3) sampling pipe loads bed mud
Sampling apparatus main body is slowly descending, to its apart from lakebed certain distance when, loosen hawser (14), sampling apparatus main body
Acceleration shock, insert in bed mud, sampling pipe (19) filling bed mud；Now hawser (14) becomes relaxed state by plumbness；It is close
Envelope check valve (17) is fallen, at the top of closing sampling pipe (19)；Hanger bracket (1) is descending so that withstands peg in peg button (16) bottom
(3) top；
(4) plummet excites
After sampling pipe (19) loads bed mud, hawser (14) is stretched, plummet (15) is fallen along hawser (14), pounds lower hanger bracket
(1) so that when the italic button (162) on peg button (16) is pushed by external force, the spring (165) for detaining top shrinks, and detains smoothly logical
Peg (3) is crossed, after reaching peg (3) bottom, spring (165) struts, and clasps peg (3)；
(5) latch is lifted to extract
After plummet (15) excites, open the receipts of the hawser on sampling boat and carry device, it is up that hawser (14) hauls hanger bracket (1)；This
When hanger bracket (1) stress point on peg (3), control of sailing rope (11) on peg (3) and drag plate rope (12) while up lifted；
Due to drag plate rope (12) have it is more than needed, when hawser (14) above carries, first extract latch (9), unclamp baffle plate (8)；
(6) baffle plate closes
Hereafter drag plate rope (12) and continue stress, progressively tense and close baffle plate (8), hereafter sampler is continued to lift up until going out
Water, this process drag plate rope (12) stress, and therefore, baffle plate (8) closes all the time, prevents the bed mud sample in sampling pipe (19) from letting out
Dew；
(7) sample is layered
After sampling apparatus water outlet, baffle plate (8) is unclamped, sampling pipe (19) lower end is clogged with rubber stopper, prevents bed mud from spilling, take
Go out sampling pipe (19)；Rubber stopper is removed, push rod is inserted from sampling pipe (19) bottom, push rod is from the bottom up by bed mud from sampling pipe
(19) top is extruded, and with predetermined altitude interval, splits bottom mud column-shaped sample.
The big flux bottom mud column-shaped sampling apparatus of the present invention is a set of can realize big flux bed mud sample simultaneously accurate point
Layer, the deficiency of bottom mud column-shaped sampling can be avoided using it, realizes a technological break-through in sample collection field.
The present invention blocks two methods by top negative pressure self-priming simultaneously and bottom, realizes the bottom mud column-shaped sample of big flux
Vertical fix of collection, wherein baffle plate uses latch, and after latch is extracted, using the upward mode for promoting sampling, bottom is kept off
Mud plate is closed, to realize the effect of bed mud closure.Overcome the current bottom mud column-shaped sampling of big flux and the problem of bottom leakage mud be present.
It is also an advantage of the present invention that：
1st, sample collection flux is big 2-3 times compared with legacy sampler.
2nd, implementation result is good, greatly improves the precision of sample layering.
3rd, the latch of sampler and peg, which the control such as buckle and be used uniformly hammer, excites, and application method is simple, process specification, just
In promoting the use of.
Brief description of the drawings
Fig. 1 a are the main structure diagrams according to the sampling apparatus of the present invention；
Fig. 1 b are the side structure schematic views according to the sampling apparatus of the present invention；
Fig. 1 c are Fig. 1 b along A-A directions cross section structure diagram；
Fig. 2 a are the main structure diagrams of hanger bracket；
Fig. 2 b are the side structure schematic views of hanger bracket；
Fig. 2 c are Fig. 2 b along A-A directions cross section structure diagram；
Fig. 3 is the main structure diagram of peg button；
Fig. 4 is hanger bracket and peg button package assembly schematic cross-sectional view；
Fig. 5 is the schematic cross-sectional view of cavity portion；
Fig. 6 a are the bottom enlarged diagrams of sampling apparatus；
Fig. 6 b are Fig. 6 a along A-A directions schematic cross-sectional view；
Critical piece present position diagrammatic side-view cross-sectional schematic diagram when Fig. 7 a are water under sampling apparatus；
Critical piece present position main view schematic cross-sectional view when Fig. 7 b are water under sampling apparatus；
Fig. 8 a are that sampling pipe collects critical piece present position diagrammatic side-view cross-sectional schematic diagram after bed mud；
Fig. 8 b are that sampling pipe collects critical piece present position main view schematic cross-sectional view after bed mud；
Fig. 9 a are that plummet excites post-sampling device critical piece present position diagrammatic side-view cross-sectional schematic diagram；
Fig. 9 b are that plummet excites post-sampling device critical piece present position main view schematic cross-sectional view；
Figure 10 a are sampling apparatus critical piece present position schematic front view when latch is extracted；
Figure 10 b are Figure 10 a along A-A directions schematic cross-sectional view；
Figure 11 a are baffle plate closure post-sampling device critical piece present position schematic front view；
Figure 11 b are Figure 11 a along A-A directions schematic cross-sectional view.
Wherein mark and represent respectively：1- hanger brackets, 2- upper connecting rods, 3- pegs, 4- cavitys, 5- flanges, 6- counterweights connecting rod, 7-
Counterweight, 8- baffle plates, 9- latches, 10- pulleys, 11- controls of sailing rope, 12- drag plate rope, 13- connecting screws, 14- hawsers, 15- plummets,
16- pegs button, 17- leakproof one-way valves, 18- sealing rings, 19- sampling pipes, 20- cross bars, 21- connections cross bar, 22- mounting holes,
161- installing plates, 162- italics button, 164- installations screw, 165- springs.
Embodiment
Below by specific embodiment and with reference to accompanying drawing be described in detail the present invention big flux bottom mud column-shaped sampling apparatus and
The method of sampling, it should be appreciated by those skilled in the art that following description is not intended to this only for more fully understanding the present invention
Any restrictions are made in invention.
Referring to Fig. 1 a-1c, hanger bracket 1, upper connecting rod are mainly included according to the big flux bottom mud column-shaped sampling apparatus of the present invention
2nd, cavity 4, counterweight connecting rod 6, counterweight 7, baffle plate 8, latch 9, pulley 10, control of sailing rope 11, drag plate rope 12, hawser 14, plummet 15 with
And sampling pipe 19.
The upper end of hanger bracket 1 is fixedly connected with hawser 14, and hawser 14 passes through the central perforation of plummet 15.It is fixed on hanger bracket 1
Be provided with cross bar 20, cross bar 20 and upper connecting rod 2 can be up and down be connected.In the side wall of hanger bracket 1 below cross bar 20
It is provided with a pair of peg buttons 16.Upper connecting rod (2) lower end is fixedly connected with cavity (4), and peg 3 is fixedly installed in upper connecting rod 2；
Referring to Fig. 2 a-2c and Fig. 3-4, peg button 16 includes installing plate 161, and the outside of installing plate 161 is by installing spiral shell
The side wall of silk 164 and hanger bracket 1 is fixed.The inner side of installing plate 161 is provided with italic button 162, and the upper end of italic button 162 passes through bullet
Spring 165 is connected with installing plate 161；The lower end of italic button 162 is pivotably connected with installing plate 161.In the nature of spring 165
Under, the gap between a pair of italic buttons 162 is less than the diameter or width of peg 3 so that peg 3 is located at the lower section of italic button 162.
The top of cavity 4 is fixed by connecting screw 13 and upper connecting rod 2, and the lower end of cavity 4 is connected with counterweight connecting rod 6, the bottom of cavity 4
Portion center has opening, and openend is connected with the upper end of sampling pipe 19.In the embodiment show in figure 5, the top of sampling pipe 19 passes through
Flange 5 is connected with cavity 4, and external screw thread is arranged at the top of flange 5, and the openend of cavity 4 is provided with sealing ring 18 and internal thread, passes through rotation
The tight crush seal circle 18 of flange 5 so that lateral expansion after sealing ring 18 is longitudinally extruded, to reach clamping sampling pipe 19 and close
The effect of envelope.The other upper opening portion of cavity 4 is provided with leakproof one-way valve 17, for sealing the top of sampling pipe 19 in sampling process
End.
Counterweight connecting rod 6 shares four, is oppositely arranged on the periphery of sampling pipe 19 two-by-two, and counterweight 7 is arranged under counterweight connecting rod 6
Portion.The effect of counterweight 7 is to increase the weight of sampler lower end, can increase sampling depth, and ensures hanging down after water under sampler
Nogata to.
Referring to Fig. 6 a-6b, the lower end of counterweight connecting rod 6 is provided with a pair of baffle plates 8 to be opened/closed, and each baffle plate 8 pivotly connects
It is connected between two counterweight connecting rods 6；Connection cross bar 21 is provided between corresponding two counterweight connecting rods 6, in the connection He of cross bar 21
The top of baffle plate 8 is respectively arranged with pin-and-hole, and latch 9 is inserted into the pin-and-hole of connection cross bar 21 and baffle plate 8 from top to down.Baffle plate 8 is used
The outlet of the lower end of sampling pipe 19 is blocked after terminating in sampling, bed mud leaks from the lower end of sampling pipe 19 during above being carried to prevent sampler
Go out.Fixed dam 8 when latch 9 is used to sample, makes baffle plate 8 be located at vertical direction, is advantageous to bed mud and smoothly enters sampling pipe 19.Insert
The upper end of pin 19 connection control of sailing rope 11, control of sailing rope 11 is connected with peg 3；Plate rope 12 is dragged in the connection of the end of baffle plate 8, drags plate rope 12 and peg
3 connections.Control of sailing rope 11 shares two, is respectively used to extract the latch 9 of two fixed dams 8.Drag plate rope 12 and share two, point
Baffle plate 8 corresponding to closing Yong Yu not drawn high.Wherein on cavity 4 and counterweight 7 respectively set 4 pulleys 10, for control of sailing rope 11
Coordinate with plate rope 12 is dragged, so as to beneficial to control control of sailing rope 11 and the activity direction for dragging plate rope 12.Drag plate rope 12 has than control of sailing rope 11
3cm excess lengths, drag motion upwards while when pulling control of sailing rope 11 and dragging plate rope 12 when peg 3 is carried by external force, pull control first
Pin rope 11 extracts latch 9, then drags plate rope 12, closed baffle plate 8.
The material of each part can be above：
(1) upper connecting rod 2 and cavity 4 are aluminium material.
(2) hanger bracket 1, peg 3, flange 5, counterweight connecting rod 6, counterweight 7, baffle plate 8, latch 9, pulley 10, connecting screw 13,
Peg button 16, leakproof one-way valve 17 are stainless steel, and there is rubber washer the wherein lower end of leakproof one-way valve 17.
(3) plummet 15 is lead material.
(4) hawser 14, control of sailing rope 11 and to drag plate rope 12 be wire quality.
(5) sealing ring 18 is quality of rubber materials.
(6) sampling pipe 19 is lucite material.
Referring to Fig. 7 a-11b (for clarity, sampling pipe not shown in Fig. 7 a-11b), using the big flux bottom of the present invention
The sampling process of mud column-shaped sampling apparatus is as follows：
(1) sampling pipe loads
Sampling pipe 19 is loaded by sampler lower end weight port；After flange 5, sealing ring 18, the bottom of flange 5 is withstood；Rotation
The fastening sealing circle 18 of turned flange 5；With the aperture outside screwdriver insertion flange 5, flange 5, longitudinal crush seal circle 18 are screwed so that
Rubber seal is simultaneously sealed the top of sampling pipe 19 by lateral expansion after being extruded to longitudinal direction, clamping.
(2) water under sampling apparatus
After sampling pipe 19 installs, by plummet 15 as on sampling boat, hawser 14 carries device with the hawser receipts on sampling boat and is connected.
Sampling apparatus main body is put into water body, and it is slowly descending, and now hawser 14 firmly tangles hanger bracket 1, and upper connecting rod 2 passes through cross bar 20
Tangle.
(3) sampling pipe loads bed mud
Sampling apparatus main body is slowly descending, to its apart from 5 meters or so of lakebed when, loosen hawser 14, sampling apparatus main body adds
Speed impact, is inserted in bed mud, and sampling pipe 19 loads bed mud；Now hawser 14 becomes relaxed state by plumbness；Sealing is unidirectional
Valve 17 is fallen, the top of closing sampling pipe 19；Hanger bracket 1 is descending so that withstands the top of peg 3 in the bottom of peg button 16.
(4) plummet excites
After sampling pipe 19 loads bed mud, hawser 14 is stretched, plummet 15 is fallen along hawser 14, pounds lower hanger bracket 1 so that hang
When italic button 161 on bar button 16 is pushed by external force, the spring 165 for detaining top shrinks, and button passes through peg 3, reaches peg 3
Behind bottom, spring 165 struts, and clasps peg 3；
(5) latch is lifted to extract
After plummet 15 excites, open the receipts of the hawser on sampling boat and carry device, it is up that hawser 14 hauls hanger bracket 1；Now hang
The stress point of frame 1 control of sailing rope 11 on peg 3 and is dragged plate rope 12 while up lifted on peg 3.There is richness due to dragging plate rope 12
It is remaining, when hawser 14 above carries 3 centimeters, latch 9 can be extracted, can now unclamp baffle plate 8.
(6) baffle plate closes
Hereafter drag plate rope 12 and continue stress, progressively tense and close baffle plate 8, hereafter sampler is continued to lift up up to water outlet,
This process drags the stress of plate rope 12, and therefore, baffle plate 8 closes all the time, prevents the bed mud sample in sampling pipe 19 from revealing.
(7) sample is layered
After sampler water outlet, baffle plate 8 is unclamped, the lower end of sampling pipe 19 is clogged with rubber stopper, prevents bed mud from spilling, take out sampling
Pipe 19；Rubber stopper is removed, push rod is inserted from the bottom of sampling pipe 19, push rod from the bottom up squeezes bed mud from the top of sampling pipe 19
Go out, with 1cm vertical separations, split bottom mud column-shaped sample.
Claims (2)
1. a kind of big flux bottom mud column-shaped sampling apparatus, this includes hanger bracket (1), upper connecting rod (2) using device, cavity (4), matched somebody with somebody
Reconnection bar (6), counterweight (7), baffle plate (8), latch (9), pulley (10), control of sailing rope (11), drag plate rope (12), hawser (14), lead
Hammer (15) and sampling pipe (19) into shape；Wherein：
Hanger bracket (1) upper end is fixedly connected with hawser (14), and hawser (14) passes through the central perforation of plummet (15), hanger bracket (1)
On be fixedly installed cross bar (20), cross bar (20) and upper connecting rod (2) can be up and down be connected；Below cross bar (20)
A pair of peg buttons (16) are provided with hanger bracket (1) side wall, peg button (16) is that the italic equipped with spring is buckled；
Upper connecting rod (2) lower end is fixedly connected with cavity (4), and peg (3) is fixedly installed in upper connecting rod (2)；
Cavity (4) lower end is connected with counterweight connecting rod (6), and cavity (4) bottom center has an opening, openend with sampling pipe (19)
End connection, upper opening portion are provided with leakproof one-way valve (17)；
Counterweight connecting rod (6) shares four, is oppositely arranged on sampling pipe (19) periphery two-by-two, and counterweight (7) is arranged on counterweight connecting rod (6)
Bottom；
Counterweight connecting rod (6) lower end is provided with a pair of baffle plates (8), and each baffle plate (8) is pivotably coupled to two counterweight connecting rods (6)
Between；Connection cross bar (21) is provided between corresponding two counterweight connecting rods (6), at the top of connection cross bar (21) and baffle plate (8)
Pin-and-hole is respectively arranged with, latch (9) is inserted into the pin-and-hole of connection cross bar (21) and baffle plate (8) from top to down；
Latch (19) upper end connection control of sailing rope (11), control of sailing rope (11) are connected with peg (3)；
Plate rope (12) is dragged in the connection of baffle plate (8) end, is dragged plate rope (12) and is connected with peg (3).
2. a kind of method of sampling of big flux bottom mud column-shaped sampling apparatus using described in claim 1, comprises the following steps：
(1) sampling pipe loads
Sampling pipe (19) is loaded by sampling apparatus lower end weight port；With the openend clamping of cavity (4)；
(2) water under sampling apparatus
After sampling pipe (19) installs, by plummet (15) as on sampling boat, sampling apparatus main body is put into water body, and slowly under
OK, now hawser (14) firmly tangles hanger bracket (1), and upper connecting rod (2) is tangled by cross bar (20)；
(3) sampling pipe loads bed mud
Sampling apparatus main body is slowly descending, to its apart from lakebed certain distance when, loosen hawser (14), sampling apparatus main body accelerates
Impact, insert in bed mud, sampling pipe (19) filling bed mud；Now hawser (14) becomes relaxed state by plumbness；Sealing is single
Fallen to valve (17), at the top of closing sampling pipe (19)；Hanger bracket (1) is descending so that withstands peg (3) top in peg button (16) bottom
Portion；
(4) plummet excites
After sampling pipe (19) loads bed mud, hawser (14) is stretched, plummet (15) is fallen along hawser (14), pounds lower hanger bracket (1),
During so that the italic button (162) on peg button (16) being pushed by external force, the spring (165) for detaining top shrinks, and button passes through extension
Bar (3), after reaching peg (3) bottom, spring (165) struts, and clasps peg (3)；
(5) latch is lifted to extract
After plummet (15) excites, open the receipts of the hawser on sampling boat and carry device, it is up that hawser (14) hauls hanger bracket (1)；Now hang
The stress point of hanger (1) control of sailing rope (11) on peg (3) and is dragged plate rope (12) while up lifted on peg (3)；Due to
Drag plate rope (12) have it is more than needed, when hawser (14) above carries, first extract latch (9), unclamp baffle plate (8)；
(6) baffle plate closes
Hereafter drag plate rope (12) and continue stress, progressively tense and close baffle plate (8), hereafter sampler is continued to lift up up to water outlet,
This process drags plate rope (12) stress, and therefore, baffle plate (8) closes all the time, prevents the bed mud sample in sampling pipe (19) from revealing；
(7) sample is layered
After sampling apparatus water outlet, baffle plate (8) is unclamped, sampling pipe (19) lower end is clogged with rubber stopper, prevents bed mud from spilling, taking-up is adopted
Sample pipe (19)；Rubber stopper is removed, push rod is inserted from sampling pipe (19) bottom, push rod is from the bottom up by bed mud from sampling pipe (19)
Top is extruded, and with predetermined altitude interval, splits bottom mud column-shaped sample.
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| CN201710749381.7A CN107560889B (en) | 2017-08-28 | 2017-08-28 | A kind of big flux bottom mud column-shaped sampling apparatus and the method for sampling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107941557A (en) * | 2017-12-29 | 2018-04-20 | 北京桑德环境工程有限公司 | A kind of column shaped deposit layered sampling device |
| CN108956205A (en) * | 2018-05-30 | 2018-12-07 | 中国海洋大学 | Seabed gravity corer bottom negative-pressure balancing device |
| CN110646239A (en) * | 2019-09-28 | 2020-01-03 | 徐州蓝湖信息科技有限公司 | Sludge sampler based on unmanned aerial vehicle |
| CN112903974A (en) * | 2021-03-19 | 2021-06-04 | 青海省地质调查局 | Deep deposit investigation prediction system |
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| CN112903974A (en) * | 2021-03-19 | 2021-06-04 | 青海省地质调查局 | Deep deposit investigation prediction system |
| CN112903974B (en) * | 2021-03-19 | 2023-02-03 | 青海省地质调查局 | Deep deposit investigation prediction system |
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