CN119984905A - A soil vertical batch sampling device and method for environmental geological survey - Google Patents
A soil vertical batch sampling device and method for environmental geological survey Download PDFInfo
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- CN119984905A CN119984905A CN202510046278.0A CN202510046278A CN119984905A CN 119984905 A CN119984905 A CN 119984905A CN 202510046278 A CN202510046278 A CN 202510046278A CN 119984905 A CN119984905 A CN 119984905A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses soil vertical batch sampling equipment and method for environmental geological investigation, comprising a main body supporting mechanism and a distributed sampling mechanism arranged on the main body supporting mechanism, wherein the main body supporting mechanism comprises a main body supporting plate which is horizontally arranged, the distributed sampling mechanism comprises a sampling mechanism supporting shell which is arranged at a sampling lifting through groove, a sampling outer drill rod which extends vertically is fixed at the lower end of the sampling mechanism supporting shell, a sampling inner drill rod is rotationally connected to the sampling outer drill rod, a plurality of outer drill rod side sampling holes which are communicated with each other inside and outside are formed in the side wall of the sampling outer drill rod, a plurality of inner drill rod side sampling holes which are communicated with each other inside and outside are formed in the side wall of the sampling inner drill rod, and the depth of the sampling outer drill rod and the depth of the sampling inner drill rod inserted into soil can be accurately controlled by utilizing a sampling static pressure driving mechanism, so that the accurate control of the sampling depth is vital to study soil characteristic distribution of different depths, and the distribution condition of soil components in the vertical direction can be determined.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a soil vertical batch sampling device and method for environmental geological investigation.
Background
Calcium is the main lithogenic and vital element, and is also the geochemical key element connecting rock-, water-, biosphere and atmosphere circles. Although the calcium isotope is theoretically a potential research direction, the calcium isotope has not been fully developed due to limitations in detection means and precision of instruments. With the advancement of analytical testing techniques, calcium isotopes have become a research hotspot for isotope geochemistry since the last 90 th century. Along with the progress of experimental technology and instrument analysis precision, the research field of calcium isotopes is continuously expanded and has remarkably progressed, at present, the composition of the calcium isotopes in different geologic bodies is basically ascertained, but the understanding of fractionation mechanism is still not clear, the application field of the calcium isotopes is wide, and the method has important application potential in a plurality of fields such as tracing calcium sources, inverting ancient seawater evolution, reconstructing ancient climate change, biomedicine, archaeology and the like.
Calcium isotope geochemistry is a potential-filled research area, which, despite the increase in related research in recent years, is relatively limited and has a large number of new applications to be explored. In the future, the fractionation mechanism can be perfected by further optimizing the calcium isotope analysis test method, and interdisciplinary cooperation is developed so as to realize more accurate and wide technological progress and achievement application of calcium isotope research.
The method is mainly used for pollution investigation, ecological environment assessment, soil fertility measurement, soil quality assessment and the like, and the pollution investigation is used for determining the content and distribution of various pollutants in soil, such as heavy metals (lead, cadmium, mercury and the like), organic matters (pesticides, petroleum hydrocarbon and the like), radioactive substances and the like. By sampling and analyzing the soil in different places and different depths, the pollution range, degree and source can be known, and a basis is provided for formulating pollution treatment schemes. The ecological environment assessment is to assess the health status of the soil ecosystem, including soil microbial communities, soil animal diversity, and the like. Microorganisms and animals in the soil play an important role in maintaining soil fertility and promoting substance circulation. By sampling analysis, the structure and function of the biological communities can be known, and the stability and sustainability of the ecological environment can be evaluated.
However, the collection efficiency of the current sampling device is low, and mutual pollution is easy to occur between samples, so that the final analysis result is affected, and the current sampling device needs to be further improved and optimized.
Disclosure of Invention
The invention aims to provide a vertical batch sampling device and a vertical batch sampling method for soil for environmental geological investigation, which can efficiently complete soil sample collection work for geological investigation and properly preserve soil samples.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the vertical batch sampling equipment for the soil for environmental geological survey comprises a main body supporting mechanism and a distributed sampling mechanism arranged on the main body supporting mechanism;
The main body supporting mechanism comprises a main body supporting plate which is horizontally arranged, and a plurality of main body driving wheels are arranged at the bottom of the main body supporting plate;
The main body supporting plate is provided with a vertically through sampling lifting through groove;
The distributed sampling mechanism comprises a sampling mechanism supporting shell arranged at the sampling lifting through groove, a vertically extending sampling outer drill rod is fixed at the lower end of the sampling mechanism supporting shell, and a sampling inner drill rod is rotationally connected with the sampling outer drill rod;
The side wall of the sampling outer drill rod is provided with a plurality of inner drill rod side sampling holes communicated with the outside;
the sampling mechanism supporting shell is connected to the top of the main body supporting plate through a sampling static pressure driving mechanism;
The top of the main body supporting plate is provided with a sample transferring and storing mechanism, and the sample transferring and storing mechanism comprises a sample transferring mechanism and a sample storing mechanism;
The sample transferring mechanism comprises a transferring magnetic fixing cylinder connected to the top of the main body supporting plate through a multidirectional driving mechanism;
The sample storage mechanism comprises a sample storage box which is fixed at the top of the main body supporting plate and is provided with an opening at the side surface, two circulating storage driving wheels with axes horizontally arranged are rotationally connected in the sample storage box, a sample storage supporting synchronous belt is connected between the two circulating storage driving wheels in a transmission way, and a plurality of sample fixing and placing cylinders are uniformly distributed and fixed outside the sample storage supporting synchronous belt;
a sample storage cylinder is arranged in the sample fixing and placing cylinder, and a sample restraint plate extending spirally is fixed on the inner side wall of the sample storage cylinder.
Preferably, be equipped with firm supporting mechanism in the main part backup pad, firm supporting mechanism includes a plurality of firm backup pads of fixing in main part backup pad side, is fixed with the firm fixed section of thick bamboo of supporting of opening down in every firm backup pad, and sliding connection has firm support lift section of thick bamboo in the firm fixed section of thick bamboo of supporting, and firm support lift section of thick bamboo lower extreme is fixed with firm supporting disk, is equipped with the support lift actuating lever that is used for driving firm support lift section of thick bamboo and removes in the firm fixed section of thick bamboo of supporting.
The device has the advantages that in the process of sampling static pressure, the whole device is supported by the stable supporting mechanism, so that the stability of the device in the process of sampling is maintained.
Preferably, the main body driving wheels are connected to the bottom of the main body supporting plate through a wheel set lifting mechanism, the wheel set lifting mechanism comprises a plurality of wheel set lifting supporting cylinders which are fixed to the bottom of the main body supporting plate and are downward in opening, wheel set lifting moving cylinders are connected in a sliding mode in the wheel set lifting supporting cylinders, suspensions of the plurality of main body driving wheels are fixedly connected to the lower ends of the wheel set lifting moving cylinders in a one-to-one correspondence mode, and wheel set lifting driving rods used for driving the wheel set lifting moving cylinders to lift are arranged in the wheel set lifting supporting cylinders.
During the static pressure sampling process, the wheel set lifting mechanisms are used for lifting the driving wheels of the main body to be separated from the ground, and the whole equipment is supported by the stable supporting mechanisms.
Preferably, the sampling hydrostatic drive mechanism comprises two hydrostatic drive support tube shells which are fixed at the top of the main body support plate and vertically extend, a hydrostatic drive column is connected in the hydrostatic drive support tube shells in a sliding manner, the side surfaces of the hydrostatic drive support tube shells are provided with drive fit communication grooves which are internally and externally communicated and vertically extend, and the hydrostatic drive column is fixedly connected with the sampling mechanism support shell through a hydrostatic drive connecting plate;
The static pressure driving column is provided with a vertically through driving matching hole, a static pressure driving screw rod which extends vertically is connected in a threaded transmission manner in the driving matching hole, a static pressure driving accommodating shell is fixed at the top of the static pressure driving supporting tube shell, the upper end of the static pressure driving screw rod extends into the static pressure driving accommodating shell, and a static pressure driving motor for driving the static pressure driving screw rod to rotate is fixed in the static pressure driving accommodating shell;
the output shaft of the static pressure driving motor is in transmission connection with the static pressure driving screw rod through a planetary reducer.
The soil sampling static pressure driving mechanism has the advantages that the depth of the outer sampling drill rod and the inner sampling drill rod inserted into soil can be accurately controlled by utilizing the sampling static pressure driving mechanism, disturbance to the soil can be reduced as much as possible by the driving mode, and the collected soil sample can keep an original structure and a layer, so that excessive extrusion or mixing is avoided.
Preferably, a rotary offset mechanism is arranged in the sampling mechanism supporting shell, the upper end of the inner sampling drill rod extends into the sampling mechanism supporting shell, the rotary offset mechanism comprises a rotary offset supporting ring fixed in the sampling mechanism supporting shell, an inner drill rod supporting ring is fixed at one end of the inner sampling drill rod, which is positioned in the sampling mechanism supporting shell, and the inner drill rod supporting ring is rotatably connected in the rotary offset supporting ring;
An offset driving worm wheel is fixed at one end of the inner sampling drill rod, which is positioned inside the sampling mechanism supporting shell, an offset driving accommodating shell is fixed at the outer side of the sampling mechanism supporting shell, an offset driving motor is fixed in the offset driving accommodating shell, an output shaft of the offset driving motor extends into the sampling mechanism supporting shell and is fixed with an offset driving worm, and the offset driving worm is meshed with the offset driving worm wheel.
During the process of inserting the sampling outer drill rod and the sampling inner drill rod into soil for sampling, the side sampling holes of the outer drill rod and the side sampling holes of the inner drill rod are staggered and isolated, so that the soil outside the sampling outer drill rod is prevented from entering the inside of the sampling inner drill rod through the side sampling holes of the outer drill rod and the side sampling holes of the inner drill rod, and the collected sample is prevented from being polluted;
After the sampling is finished, the sampling outer drill rod and the sampling inner drill rod are pulled out, the sampling outer drill rod and the sampling inner drill rod are driven by the rotary offset mechanism to rotate relatively, so that the side sampling holes of the outer drill rod and the side sampling holes of the inner drill rod are communicated in one-to-one correspondence, and soil samples contained in the sampling inner drill rod are conveniently transferred and taken out through the side sampling holes of the outer drill rod and the side sampling holes of the inner drill rod.
Preferably, the sampling mechanism supporting shell is provided with a drill rod cleaning mechanism, the drill rod cleaning mechanism comprises a cleaning rod restraining pipe which is fixed at the top of the sampling mechanism supporting shell and vertically penetrates through the sampling mechanism supporting shell, a vertically extending cleaning support rod is connected in a sliding mode in the cleaning rod restraining pipe, and the lower end of the cleaning support rod extends into a drill rod in sampling and is fixedly provided with a sweeping brush;
A cleaning rod driving supporting tube shell which extends vertically is fixed at the top of the sampling mechanism supporting tube shell, a cleaning rod driving column is connected in the cleaning rod driving supporting tube shell in a sliding manner, a cleaning rod driving matching groove which is communicated with the inside and the outside and extends vertically is formed in the side wall of the cleaning rod driving supporting tube shell, and the cleaning rod driving column is fixedly connected with the cleaning supporting rod through a cleaning driving connecting plate;
The cleaning rod driving column is provided with a vertically through cleaning driving matching hole, a vertically extending cleaning driving screw rod is connected with the cleaning driving matching hole in a threaded transmission mode, a cleaning driving accommodating shell is fixed at the top of the cleaning rod driving supporting tube shell, the upper end of the cleaning driving screw rod extends to the inside of the cleaning driving accommodating shell, a cleaning driving motor is fixed in the cleaning driving accommodating shell, and an output shaft of the cleaning driving motor is connected with the cleaning driving screw rod in a transmission mode through a coupler.
After the single sampling is finished, the drill rod cleaning mechanism is used for thoroughly cleaning the inside of the drill rod in the sampling, so that the phenomenon that the residual soil in the drill rod in the sampling is mixed with newly sampled soil to cause deviation in sample analysis is avoided.
Preferably, the cleaning support rod is of a hollow structure, a plurality of air flow injection through holes communicated with the inside and the outside are formed in the cleaning brush part of the cleaning support rod, an air compressor is fixed at the top of the supporting shell of the sampling mechanism, and the output end of the air compressor is communicated with the inside of the cleaning support rod through a pipeline.
The cleaning work of the drill rod in the sampling is more thorough by utilizing the purging of high-speed air flow.
Preferably, the multidirectional driving mechanism comprises a sample transfer support sliding rail fixed at the top of the main body support plate, and a sample transfer support sliding block is connected to the sample transfer support sliding rail in a sliding manner;
a steering support ring with a vertically extending axis is fixed at the top of the sample transfer support slide block, and a steering rotating ring is rotationally connected in the steering support ring;
The top of the steering rotating ring is fixedly provided with a horizontally extending supporting cylinder which is horizontally placed and is provided with an opening at one end, the horizontally extending supporting cylinder is connected with a horizontally extending sliding cylinder in a sliding way, and the horizontally extending sliding cylinder is driven to move by a horizontally driving telescopic rod arranged in the horizontally extending supporting cylinder;
The transfer magnetic attraction fixing cylinder is fixed at the outer end of the horizontally extending sliding cylinder.
The multi-directional driving mechanism can be used for efficiently completing sample transferring and storing, so that soil samples in the drill rod in sampling can be smoothly transferred to each sample storage cylinder and stored.
Preferably, the transfer magnetic attraction fixing cylinder is connected to the outer end of the horizontally extending sliding cylinder through a sampling rotating mechanism, the sampling rotating mechanism comprises a sampling rotating fixing outer ring which is fixed to the outer end of the horizontally extending sliding cylinder and is coaxially arranged with the horizontally extending sliding cylinder, the sampling rotating fixing outer ring is rotationally connected with a sampling rotating driving inner ring, the transfer magnetic attraction fixing cylinder is fixedly connected to the outer end of the sampling rotating driving inner ring, and a servo motor for driving the sampling rotating driving inner ring to rotate is arranged in the sampling rotating fixing outer ring;
an adsorption fixing electromagnet is fixed at the inner end part of the transfer magnetic attraction fixing cylinder.
The soil sample storage cylinder is characterized in that a sample rotating mechanism is utilized to drive the transfer magnetic fixing cylinder to rotate together with the sample storage cylinder in the sample transfer process, so that the soil sample is contained in the sample storage cylinder more smoothly, and the soil sample is firmly fixed in the sample storage cylinder under the constraint of the sample constraint plate.
Preferably, the vertical batch sampling method for the soil for environmental geological survey is based on the vertical batch sampling device for the soil for environmental geological survey, and comprises the following steps of:
s1, moving the device to a sampling position:
under the driving migration of a plurality of main body driving wheels, the equipment is moved to a sampling position, so that the sampling outer drill rod is aligned with a sampling point in the vertical direction;
S2, static pressure sampling is carried out
Under the drive of the sampling hydrostatic drive mechanism, the whole body formed by the sampling outer drill rod and the sampling inner drill rod is inserted into soil together, and a soil sample is accommodated into the sampling inner drill rod;
s3, extracting the inner sampling drill rod with the soil sample collected
Under the drive of the sampling static pressure driving mechanism, the sampling mechanism supporting shell and the whole formed by the sampling outer drill rod and the sampling inner drill rod are moved upwards together, and the whole formed by the sampling outer drill rod and the sampling inner drill rod is extracted from soil;
s4, carrying out batch transfer storage on soil samples in the drill rod in the sampling
In the whole extraction process of the outer sampling drill rod and the inner sampling drill rod, when the side sampling hole of the first outer sampling drill rod from top to bottom is consistent with the transferring magnetic fixing cylinder in the horizontal height, the whole extraction of the outer sampling drill rod and the inner sampling drill rod is stopped;
under the drive of the rotary offset mechanism, the sampling inner drill rod rotates in the sampling outer drill rod, so that the side sampling holes of each outer drill rod are communicated with the side sampling holes of each inner drill rod in a one-to-one correspondence manner;
Then under the drive of the multidirectional driving mechanism, the transfer magnetic fixing cylinder is taken out of one of the sample fixing and placing cylinders, the transfer magnetic fixing cylinder is carried with the sample storage cylinder to penetrate through the outer drill rod side sampling hole and is inserted into the inner drill rod side sampling hole, the soil sample contained in the inner drill rod is transferred to the sample storage cylinder, and then the sample storage cylinder stored with the soil sample is replaced into the corresponding sample fixing and placing cylinder under the drive of the multidirectional driving mechanism;
S5, continuing to transfer and store the soil sample
Then under the drive of the sampling static pressure driving mechanism, the whole formed by the sampling outer drill rod and the sampling inner drill rod is continuously extracted until the next sampling hole on the side surface of the outer drill rod is consistent with the transferring magnetic attraction fixing cylinder in the horizontal height, and the extraction of the whole formed by the sampling outer drill rod and the sampling inner drill rod is stopped again;
And repeating the transferring process in the step S5, transferring the soil sample contained in the inner drill rod to a sample storage cylinder, and placing the sample storage cylinder storing the soil sample back to the corresponding sample fixing and placing cylinder for storage;
S6, repeating the step S5 until all soil samples in the sampling holes on the side surfaces of the inner drill rods at different depth positions are transferred;
S7, cleaning the inside of the drill rod in sampling
After the soil sample which is collected in the sampling inner drill rod for a single time is transferred, the residual soil in the sampling inner drill rod is cleaned so as to carry out the next sampling work.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention has reasonable structural design, and can accurately control the depth of the sampling outer drill rod and the sampling inner drill rod inserted into soil by utilizing the sampling static pressure driving mechanism, which is important for researching the soil characteristic distribution of different depths, and can accurately control the sampling depth to determine the distribution condition of soil components in the vertical direction;
2. The invention has convenient operation, the whole body formed by the sampling outer drill rod and the sampling inner drill rod is inserted into the soil for sampling in a static pressure mode, the side walls of the sampling outer drill rod and the sampling inner drill rod are polished, the disturbance to the soil is reduced as much as possible, the collected soil sample is kept in an original structure and layer, excessive extrusion or mixing is avoided, and the physical, chemical and biological characteristics of the soil with different depths can be accurately reflected;
3. The sampling equipment can adapt to various outdoor topographic environments for sampling work, and the whole equipment can be well and firmly supported at a sampling position by utilizing the stable supporting mechanism so as to ensure the accuracy of sampling;
4. The sampling equipment provided by the invention has the capability of simultaneously collecting a plurality of soil samples, and the sampling efficiency is improved. A plurality of sampling holes on the side surface of the outer drill rod and sampling holes on the side surface of the inner drill rod are respectively formed along the side walls of the outer drill rod and the inner drill rod, so that soil samples at different depth positions can be completely taken out from the inner drill rod through the sampling holes on the side surface;
5. The sampling equipment is provided with a reasonable sample transferring and storing mechanism, so that collected samples can be safely and orderly stored, and subsequent analysis and processing are facilitated, wherein the multidirectional driving mechanism can flexibly and rapidly transfer and store soil samples into each sample storage cylinder;
6. After single sampling, the sampling equipment can thoroughly clean the inside of the drill rod in the sampling by using the drill rod cleaning mechanism, so that the phenomenon that the residual soil in the drill rod in the sampling is mixed with newly sampled soil to cause deviation in sample analysis is avoided.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic view of the wheel set lifting mechanism of the present invention;
FIG. 5 is a schematic view of the structure of the sampling outer drill rod of the present invention;
FIG. 6 is a schematic view of the structure of the drill pipe in the sample of the present invention;
FIG. 7 is a schematic view of the rotational offset mechanism of the present invention;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic view of the structure of the cleaning support bar of the present invention;
FIG. 10 is a left side view of the multi-way drive mechanism of the present invention;
FIG. 11 is a left side view of the sample rotation mechanism of the present invention;
fig. 12 is a schematic view of the structure of the sample storage cartridge of the present invention.
In the drawing the view of the figure, 10-main body supporting mechanism, 11-main body supporting plate, 110-sampling lifting through groove, 12-main body driving wheel, 13-steady supporting mechanism, 130-steady supporting plate, 131-steady supporting fixed cylinder, 132-steady supporting lifting cylinder, 133-steady supporting disk, 134-supporting lifting driving rod, 14-wheel set lifting mechanism, 141-wheel set lifting supporting cylinder, 142-wheel set lifting moving cylinder, 143-wheel set lifting driving rod, 20-distributed sampling mechanism, 21-sampling mechanism supporting shell, 22-sampling outer drill rod, 220-outer drill rod side sampling hole, 23-sampling inner drill rod, 230-inner drill rod side sampling hole, 24-sampling static pressure driving mechanism, 240-static pressure driving connecting plate, 241-static pressure driving supporting shell 2410-drive fit communication groove, 242-hydrostatic drive column, 2420-drive fit hole, 243-hydrostatic drive screw, 244-hydrostatic drive housing, 245-hydrostatic drive motor, 246-planetary reducer, 25-rotational offset mechanism, 251-rotational offset support ring, 252-inner drill rod support ring, 253-offset drive worm gear, 254-offset drive housing, 255-offset drive motor, 256-offset drive worm, 26-drill rod cleaning mechanism, 260-cleaning rod constraint tube, 261-cleaning support bar, 2610-sweeping brush, 2611-air jet through hole, 262-cleaning rod drive support tube housing, 2620-cleaning rod drive fit groove, 263-cleaning rod drive column, 2630-cleaning drive fit hole, 2631-cleaning drive connection plate, 264-cleaning drive screw, 265-cleaning drive housing, 266-cleaning drive motor, 267-air compressor, 30-sample transfer storage mechanism, 31-sample transfer mechanism, 310-multi-directional drive mechanism, 311-sample transfer support slide rail, 312-sample transfer support slide block, 313-steering support ring, 314-steering rotation ring, 315-horizontally extending support cylinder, 316-horizontally extending slide cylinder, 317-horizontally driving telescopic rod, 319-transfer magnetic attraction fixing cylinder, 3190-adsorption fixing electromagnet, 32-sample storage mechanism, 320-sample storage cylinder, 321-sample storage box, 322-circulation storage drive wheel, 323-sample storage support synchronous belt, 324-sample fixing placement cylinder, 33-sampling rotation mechanism, 331-sampling rotation fixing outer ring, 332-sampling rotation driving inner ring.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 12, and for convenience of description, the orientation will be defined below such that the vertical, horizontal, front-rear directions will be identical to the vertical, horizontal, front-rear directions of the respective front views or the projection relationship of the structural schematic diagrams themselves.
Example 1:
the vertical batch sampling equipment for the soil for environmental geological survey comprises a main body supporting mechanism 10 and a distributed sampling mechanism 20 arranged on the main body supporting mechanism 10, as shown in fig. 1;
The main body supporting mechanism 10 includes a main body supporting plate 11 horizontally arranged, and a plurality of main body driving wheels 12 are installed at the bottom of the main body supporting plate 11;
The main body supporting plate 11 is provided with a vertically through sampling lifting through groove 110;
Each main body driving wheel 12 is driven to rotate by an independent hub motor;
The distributed sampling mechanism 20 comprises a sampling mechanism supporting shell 21 arranged at the sampling lifting through groove 110, a sampling outer drill rod 22 extending vertically is fixed at the lower end of the sampling mechanism supporting shell 21, and a sampling inner drill rod 23 is connected with the sampling outer drill rod 22 in a rotating manner;
as shown in fig. 5, the side wall of the sampling outer drill rod 22 is provided with a plurality of outer drill rod side sampling holes 220 communicated with each other inside and outside, and as shown in fig. 6, the side wall of the sampling inner drill rod 23 is provided with a plurality of inner drill rod side sampling holes 230 communicated with each other inside and outside;
as shown in fig. 1, the sampling mechanism support case 21 is connected to the top of the main body support plate 11 through a sampling hydrostatic drive mechanism 24;
as shown in fig. 2, the top of the main body support plate 11 is provided with a sample transfer and storage mechanism 30, and as shown in fig. 3, the sample transfer and storage mechanism 30 includes a sample transfer mechanism 31 and a sample storage mechanism 32;
As shown in fig. 3, the sample transfer mechanism 31 includes a transfer magnet fixing cylinder 319 connected to the top of the main body supporting plate 11 by a multi-directional driving mechanism 310;
As shown in fig. 2, the sample storage mechanism 32 comprises a sample storage box 321 fixed at the top of the main body supporting plate 11 and provided with an opening on the side, wherein two circulating storage driving wheels 322 with horizontally arranged axes are rotatably connected in the sample storage box 321, a sample storage supporting synchronous belt 323 is in transmission connection between the two circulating storage driving wheels 322, and a plurality of sample fixing and placing cylinders 324 are uniformly distributed and fixed on the outer side of the sample storage supporting synchronous belt 323;
The sample fixing and placing barrel 324 is a cylindrical shell structure which is horizontally placed and is provided with an opening at one end;
As shown in fig. 12, a sample storage tube 320 is placed in the sample fixing placement tube 324, and a sample restraining plate 3201 extending spirally is fixed to the inner side wall of the sample storage tube 320.
As shown in fig. 1, the sampling hydrostatic drive mechanism 24 comprises two hydrostatic drive support tube shells 241 which are fixed on the top of the main body support plate 11 and vertically extend, hydrostatic drive columns 242 are slidably connected in the hydrostatic drive support tube shells 241, the sides of the hydrostatic drive support tube shells 241 are provided with drive fit communication grooves 2410 which are internally and externally communicated and vertically extend, and the hydrostatic drive columns 242 are fixedly connected with the sampling mechanism support shell 21 through hydrostatic drive connecting plates 240;
The static pressure driving column 242 is provided with a vertically through driving matching hole 2420, a static pressure driving screw rod 243 which extends vertically is connected with the driving matching hole 2420 in a threaded transmission manner, a static pressure driving accommodating shell 244 is fixed at the top of the static pressure driving supporting tube shell 241, the upper end of the static pressure driving screw rod 243 extends into the static pressure driving accommodating shell 244, a static pressure driving motor 245 for driving the static pressure driving screw rod 243 to rotate is fixed in the static pressure driving accommodating shell 244, and the static pressure driving motor 245 is a servo motor;
the output shaft of the hydrostatic drive motor 245 is in driving connection with the hydrostatic drive screw 243 via a planetary reducer 246.
As shown in fig. 1, a rotary offset mechanism 25 is arranged in the sampling mechanism supporting shell 21, as shown in fig. 7, the upper end of the inner sampling drill rod 23 extends into the sampling mechanism supporting shell 21, the rotary offset mechanism 25 comprises a rotary offset supporting ring 251 fixed in the sampling mechanism supporting shell 21, an inner drill rod supporting ring 252 is fixed at one end of the inner sampling drill rod 23 positioned in the sampling mechanism supporting shell 21, and the inner drill rod supporting ring 252 is rotatably connected in the rotary offset supporting ring 251;
an offset driving worm wheel 253 is fixed at one end of the sampling inner drill rod 23, which is positioned in the sampling mechanism supporting shell 21, as shown in fig. 8, an offset driving accommodating shell 254 is fixed at the outer side of the sampling mechanism supporting shell 21, an offset driving motor 255 is fixed in the offset driving accommodating shell 254, the offset driving motor 255 is a servo motor, an output shaft of the offset driving motor 255 extends into the sampling mechanism supporting shell 21 and is fixed with an offset driving worm 256, and the offset driving worm 256 is in meshed connection with the offset driving worm wheel 253.
As shown in fig. 10, the multi-directional driving mechanism 310 includes a sample transfer support slide rail 311 fixed on the top of the main body support plate 11, and a sample transfer support slider 312 is slidingly connected to the sample transfer support slide rail 311;
The sample transfer support slide block 312 is driven by a servo motor to move along the sample transfer support slide rail 311;
A steering support ring 313 with a vertically extending axis is fixed at the top of the sample transfer support slide block 312, and a steering rotating ring 314 is rotationally connected to the steering support ring 313;
the steering rotary ring 314 is driven by a servo motor to rotate around the vertical axis of the steering support ring 313;
A horizontally extending support cylinder 315 which is horizontally arranged and is provided with an opening at one end is fixed at the top of the steering rotating ring 314, a horizontally extending sliding cylinder 316 is connected in a sliding manner in the horizontally extending support cylinder 315, and the horizontally extending sliding cylinder 316 is driven to move by a horizontally driving telescopic rod 317 arranged in the horizontally extending support cylinder 315;
The horizontal driving telescopic rod 317 is an electric control telescopic rod driven by a servo motor, the outer rod end of the horizontal driving telescopic rod 317 is fixedly connected with the horizontal extension supporting cylinder 315, and the inner rod end of the horizontal driving telescopic rod 317 is fixedly connected with the horizontal extension sliding cylinder 316;
The transfer magnetic fixing cylinder 319 is fixed at the outer end of the horizontally extending sliding cylinder 316;
An adsorption fixing electromagnet 3190 is fixed at the inner end of the transfer magnet adsorption fixing cylinder 319.
Example 2:
on the basis of embodiment 1, as shown in fig. 1, a main body support plate 11 is provided with a stable support mechanism 13, the stable support mechanism 13 comprises a plurality of stable support plates 130 fixed on the side surface of the main body support plate 11, each stable support plate 130 is fixedly provided with a stable support fixing cylinder 131 with a downward opening, the stable support fixing cylinders 131 are slidably connected with a stable support lifting cylinder 132, the lower ends of the stable support lifting cylinders 132 are fixedly provided with stable support plates 133, and the stable support fixing cylinders 131 are internally provided with support lifting driving rods 134 for driving the stable support lifting cylinders 132 to move;
the supporting lifting driving rod 134 is a hydraulic driving rod, the end part of an outer rod of the supporting lifting driving rod 134 is fixedly connected with the inner top of the stable supporting fixed cylinder 131, and the end part of an inner rod of the supporting lifting driving rod 134 is fixedly connected with the stable supporting lifting cylinder 132.
Example 3:
On the basis of embodiment 2, as shown in fig. 1, the main body driving wheel 12 is connected to the bottom of the main body supporting plate 11 through a wheel set lifting mechanism 14, as shown in fig. 4, the wheel set lifting mechanism 14 comprises a plurality of wheel set lifting supporting cylinders 141 fixed to the bottom of the main body supporting plate 11 and having downward openings, the wheel set lifting supporting cylinders 141 are slidably connected with wheel set lifting moving cylinders 142, suspensions of the plurality of main body driving wheels 12 are fixedly connected to the lower ends of the wheel set lifting moving cylinders 142 in a one-to-one correspondence manner, and a wheel set lifting driving rod 143 for driving the wheel set lifting moving cylinders 142 to lift is arranged in the wheel set lifting supporting cylinders 141;
the wheel set lifting driving rod 143 is a hydraulic driving rod, the outer rod end of the wheel set lifting driving rod 143 is fixedly connected with the inner top of the wheel set lifting supporting cylinder 141, and the inner rod end of the wheel set lifting driving rod 143 is fixedly connected with the wheel set lifting moving cylinder 142.
Example 4:
On the basis of embodiment 3, as shown in fig. 1, a drill rod cleaning mechanism 26 is arranged on a sampling mechanism supporting shell 21, the drill rod cleaning mechanism 26 comprises a cleaning rod restraining tube 260 fixed on the top of the sampling mechanism supporting shell 21 and vertically penetrating, a vertically extending cleaning support rod 261 is slidably connected in the cleaning rod restraining tube 260, and the lower end of the cleaning support rod 261 extends into a sampling inner drill rod 23 and is fixedly provided with a sweeping brush 2610;
a cleaning rod driving support tube shell 262 which extends vertically is fixed at the top of the sampling mechanism support shell 21, a cleaning rod driving column 263 is connected in a sliding manner in the cleaning rod driving support tube shell 262, a cleaning rod driving matching groove 2620 which is communicated with the inside and the outside and extends vertically is arranged on the side wall of the cleaning rod driving support tube shell 262, and the cleaning rod driving column 263 is fixedly connected with the cleaning support rod 261 through a cleaning driving connecting plate 2631;
The cleaning rod driving column 263 is provided with a vertically through cleaning driving matching hole 2630, the cleaning driving matching hole 2630 is in threaded transmission connection with a vertically extending cleaning driving screw rod 264, a cleaning driving accommodating shell 265 is fixed at the top of the cleaning rod driving supporting tube shell 262, the upper end of the cleaning driving screw rod 264 extends into the cleaning driving accommodating shell 265, a cleaning driving motor 266 is fixed in the cleaning driving accommodating shell 265, the cleaning driving motor 266 is a servo motor, and an output shaft of the cleaning driving motor 266 is in transmission connection with the cleaning driving screw rod 264 through a coupling.
As shown in fig. 9, the cleaning support rod 261 is of a hollow structure, the cleaning support rod 261 is provided with a plurality of air flow injection through holes 2611 communicated with the inside and the outside at the cleaning brush 2610, an air compressor 267 is fixed at the top of the supporting shell 21 of the sampling mechanism, and the output end of the air compressor 267 is communicated with the inside of the cleaning support rod 261 through a pipeline.
Example 5:
On the basis of embodiment 4, as shown in fig. 10, a transfer magnet fixing cylinder 319 is connected to the outer end of the horizontally extending sliding cylinder 316 through a sampling rotation mechanism 33, as shown in fig. 11, the sampling rotation mechanism 33 includes a sampling rotation fixing outer ring 331 fixed to the outer end of the horizontally extending sliding cylinder 316 and coaxially arranged therewith, a sampling rotation driving inner ring 332 is rotatably connected to the sampling rotation fixing outer ring 331, the transfer magnet fixing cylinder 319 is fixedly connected to the outer end of the sampling rotation driving inner ring 332, and a servo motor for driving the sampling rotation driving inner ring 332 to rotate is provided in the sampling rotation fixing outer ring 331.
It should be noted that, the main driving wheel 12, the hydrostatic driving motor 245, the planetary reducer 246, the offset driving motor 255, the horizontal driving telescopic rod 317, the supporting lifting driving rod 134, the wheel set lifting driving rod 143, the cleaning driving motor 266, and the air compressor 267 are all of the prior art, and are not particularly limited herein, and can be selected by a person skilled in the art as required, so long as the technical scheme of the present application can be implemented.
Example 6:
The embodiment describes a vertical batch sampling method for soil for environmental geological survey, based on the vertical batch sampling device for soil for environmental geological survey of the above embodiment 1, comprising the following steps:
s1, moving the device to a sampling position:
Moving the apparatus to a sampling position under the drive of the plurality of body drive wheels 12 to vertically align the sampling outer drill rod 22 with the sampling point;
S2, static pressure sampling is carried out
Under the drive of the sampling hydrostatic drive mechanism 24, the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 is inserted into soil together, and a soil sample is accommodated into the sampling inner drill rod 23;
The output shaft of the static pressure driving motor 245 drives the static pressure driving screw rod 243 to rotate through the planetary reducer 246, the rotation of the static pressure driving screw rod 243 drives the static pressure driving column 242 to move downwards along the vertical direction through the thread transmission, and the static pressure driving column 242 drives the sampling mechanism supporting shell 21 to move downwards together with the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 through the static pressure driving connecting plate 240, so that the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 is gradually inserted into soil;
s3, extracting the sampling inner drill rod 23 with the soil sample
Under the drive of the sampling static pressure driving mechanism 24, the sampling mechanism supporting shell 21 and the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 are moved upwards together, and the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 is extracted from soil;
The output shaft of the static pressure driving motor 245 drives the static pressure driving screw rod 243 to reversely rotate through the planetary reducer 246, the rotation of the static pressure driving screw rod 243 drives the static pressure driving column 242 to move upwards in the vertical direction through the thread transmission, the static pressure driving column 242 drives the sampling mechanism supporting shell 21 to move upwards together with the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 through the static pressure driving connecting plate 240, and the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 is extracted from soil;
s4, carrying out batch transfer storage on soil samples in the drill rod 23 in the sampling
In the process of extracting the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23, when the first outer drill rod side sampling hole 220 from top to bottom is consistent with the transfer magnetic fixing cylinder 319 in horizontal height, the whole body formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 stops extracting;
The sampling inner drill rod 23 rotates in the sampling outer drill rod 22 under the drive of the rotary offset mechanism 25, so that the sampling holes 220 on the side surface of each outer drill rod are communicated with the sampling holes 230 on the side surface of each inner drill rod in a one-to-one correspondence manner;
Then, under the drive of the multi-directional driving mechanism 310, the transfer magnetic fixing cylinder 319 is taken out of one of the sample fixing and placing cylinders 324 to insert the sample storage cylinder 320 into the inner drill rod side sampling hole 230 through the outer drill rod side sampling hole 220, the soil sample contained in the inner drill rod 23 is transferred to the sample storage cylinder 320, and then the sample storage cylinder 320 storing the soil sample is replaced in the corresponding sample fixing and placing cylinder 324 under the drive of the multi-directional driving mechanism 310;
The specific working procedure of the multidirectional driving mechanism 310 is as follows:
A steering support ring 313 with a vertically extending axis is fixed at the top of the sample transfer support slide block 312, and a steering rotating ring 314 is rotationally connected to the steering support ring 313;
the steering rotating ring 314 is driven by a servo motor fixed in the steering supporting ring 313 to rotate around the vertical axis of the steering supporting ring 313, and a grating ruler sensor in the prior art is arranged between the steering supporting ring 313 and the steering rotating ring 314 and used for accurately monitoring the relative movement position between the steering supporting ring 313 and the steering rotating ring 314;
Each sample holding cylinder 324 is numbered, in turn, F 1、F2、F3……Fn;
Sample storage cylinders 320 are placed in the sample fixing and placing cylinders 324 and are numbered correspondingly, and the sample storage cylinders are sequentially C 1、C2、C3……Cn;
numbering the side sampling holes 220 of each outer drill rod from top to bottom, wherein Y 1、Y2、Y3……Yn is adopted in sequence;
Numbering the side sampling holes 230 of each inner drill rod from top to bottom, wherein Z 1、Z2、Z3……Zn is adopted in sequence;
Driven by a servo motor, the steering rotating ring 314 drives the horizontal extension supporting cylinder 315, the horizontal extension sliding cylinder 316 and the transfer magnetic fixing cylinder 319 connected with the outer end of the horizontal extension sliding cylinder 316 to rotate together until the axis of the transfer magnetic fixing cylinder 319 is coaxially aligned with the axis of the sample fixing and placing cylinder 324 with the number F 1;
Then the inner rod of the horizontal driving telescopic rod 317 stretches out to drive the horizontal extending sliding cylinder 316 to move along with the transferring magnetic attraction fixing cylinder 319 towards the direction approaching to F 1, so that the transferring magnetic attraction fixing cylinder 319 is inserted into the sample fixing and placing cylinder 324, at the moment, the sample storage cylinder 320 with the number of C 1 stretches into the transferring magnetic attraction fixing cylinder 319, the adsorption fixing electromagnet 3190 is electrified, and the sample storage cylinder 320 is fixedly restrained in the transferring magnetic attraction fixing cylinder 319 by utilizing electromagnetic attraction;
A grating ruler sensor in the prior art is arranged between the horizontal extension supporting cylinder 315 and the horizontal extension sliding cylinder 316, and is used for accurately monitoring the relative movement position between the horizontal extension sliding cylinder 316 and the horizontal extension supporting cylinder 315;
Then, the inner rod of the horizontal driving telescopic rod 317 is retracted to drive the horizontal extension sliding cylinder 316 to move along with the transfer magnetic fixing cylinder 319 in a direction away from F 1, so that the transfer magnetic fixing cylinder 319 carries the sample storage cylinder 320 with the number C 1 to be taken out of the sample fixing and placing cylinder 324 with the number F 1;
Then, driven by a servo motor, the steering rotating ring 314 drives the horizontal extension supporting cylinder 315, the horizontal extension sliding cylinder 316 and the transfer magnetic fixing cylinder 319 connected with the outer end of the horizontal extension sliding cylinder 316 to rotate together until the axis of the transfer magnetic fixing cylinder 319 is coaxially aligned with the axis of the outer drill rod side sampling hole 220 of the number Y 1;
Because the stroke between the horizontal extension sliding cylinder 316 and the horizontal extension supporting cylinder 315 is limited, the servo motor drives the sample transfer supporting slide block 312 to move along the sample transfer supporting slide rail 311, and the sample transfer supporting slide block 312 drives the steering supporting ring 313, the steering rotating ring 314, the horizontal extension supporting cylinder 315, the horizontal extension sliding cylinder 316 and the transfer magnetic fixing cylinder 319 to approach the sampling outer drill rod 22;
A grating ruler sensor in the prior art is arranged between the sample transfer support slide block 312 and the sample transfer support slide rail 311 and is used for accurately monitoring the relative movement position between the sample transfer support slide block 312 and the sample transfer support slide rail 311;
Then the inner rod of the horizontal driving telescopic rod 317 stretches out to drive the horizontal extending sliding cylinder 316 to move along with the transferring magnetic fixing cylinder 319 towards the direction approaching to Y 1, so that the transferring magnetic fixing cylinder 319 carries the sample storage cylinder 320 of the number C 1 to sequentially pass through the outer drill rod side sampling hole 220 of the number Y 1 and the inner drill rod side sampling hole 230 of the number Z 1, the sample storage cylinder 320 of the number C 1 is inserted into the inner drill rod 23, and the soil sample at the position of the inner drill rod side sampling hole 230 of the number Z 1 is accommodated into the sample storage cylinder 320 of the number C 1;
then, the inner rod of the horizontal driving telescopic rod 317 is retracted to drive the horizontal extension sliding cylinder 316 to move along with the transfer magnetic fixing cylinder 319 in a direction away from Y 1, so that the transfer magnetic fixing cylinder 319 is pulled out from the interior of the inner sampling drill rod 23 with the sample storage cylinder 320 containing the number C 1 of the soil sample;
Then, driven by a servo motor, the steering rotating ring 314 drives the horizontal extension supporting cylinder 315, the horizontal extension sliding cylinder 316 and the transfer magnetic fixing cylinder 319 connected with the outer end of the horizontal extension sliding cylinder 316 to rotate together, and the transfer magnetic fixing cylinder 319 is rotated to coaxially align the axis of the transfer magnetic fixing cylinder 319 with the axis of the sample fixing and placing cylinder 324 with the number F 1 again in cooperation with the movement of the sample transfer supporting slide block 312 along the sample transfer supporting slide rail 311;
then, the inner rod of the horizontal driving telescopic rod 317 is extended to drive the horizontal extending sliding cylinder 316 to move along with the transferring magnetic fixing cylinder 319 towards the direction approaching to F 1, so that the transferring magnetic fixing cylinder 319 is inserted into the sample fixing and placing cylinder 324 with the number F 1 with the sample storage cylinder 320 with the number C 1 containing the soil sample, and after the sample storage cylinder 320 with the number C 1 containing the soil sample is placed into the sample fixing and placing cylinder 324 with the number F 1, the adsorbing and fixing electromagnet 3190 is powered off;
Finally, the inner rod of the horizontal driving telescopic rod 317 is extended to drive the horizontal extension sliding cylinder 316 to move along with the transfer magnetic fixed cylinder 319 in a direction away from F 1,
The circulation storage driving wheel 322 is driven to rotate by a servo motor fixed in the sample storage box 321, and a grating ruler sensor in the prior art is arranged between the sample storage supporting synchronous belt 323 and the inner side of the sample storage box 321 and is used for accurately monitoring the relative position of the sample storage supporting synchronous belt 323 in the sample storage box 321;
After the sample storage cylinder 320 with the number C 1 containing the soil sample is placed in the sample fixing and placing cylinder 324 with the number F 1, the servo motor drives the circulating storage driving wheel 322 to rotate, and the circulating storage driving wheel 322 drives the sample storage supporting synchronous belt 323 to move together with each sample fixing and placing cylinder 324, so that the sample storage supporting synchronous belt 323 stops after moving the distance between two adjacent sample fixing and placing cylinders 324, and the sample storage cylinder 320 with the number C 2 in the sample fixing and placing cylinder 324 with the next number F 2 can be used for continuously transferring and storing the soil sample.
S5, continuing to transfer and store the soil sample
Then under the drive of the sampling static pressure driving mechanism 24, the whole formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 is continuously extracted until the next sampling hole 220 on the side surface of the outer drill rod is consistent with the transferring magnetic fixing cylinder 319 in horizontal height, and the whole formed by the sampling outer drill rod 22 and the sampling inner drill rod 23 is stopped extracting again;
and repeating the transferring process in the above step S5, transferring the soil sample received inside the in-sample drill rod 23 to the sample storage cylinder 320, and putting the sample storage cylinder 320 storing the soil sample back to the corresponding sample fixing and placing cylinder 324 for preservation;
S6, repeating the step S5 until all soil samples in the inner drill rod side sampling holes 230 at different depth positions are transferred;
s7, cleaning the inside of the drill rod 23 in sampling
The residual soil in the drill rod 23 in the sampling is cleaned so as to carry out the next sampling work, and the phenomenon that the residual soil is mixed with the soil in the new sampling to cause deviation in sample analysis is avoided.
Example 7:
The present embodiment describes a vertical batch sampling method for soil for environmental geological survey, which is based on the vertical batch sampling apparatus for soil for environmental geological survey of the above embodiment 2, and is different from embodiment 6 in that in step S1, the entire apparatus is firmly supported by a stable supporting mechanism 13;
The method comprises the following steps:
The inner rod of the supporting lifting driving rod 134 extends out to drive the stable supporting lifting cylinder 132 to move downwards in the stable supporting fixing cylinder 131, and the stable supporting lifting cylinder 132 drives the stable supporting disc 133 to move downwards together, so that the stable supporting disc 133 is fixedly supported on the ground, and the stable supporting effect is achieved on the whole equipment.
Example 8:
The difference from embodiment 7 is that in step S1, after each stable supporting plate 133 is fixedly supported on the ground, each main driving wheel 12 is driven by the wheel set lifting mechanism 14 to separate from the ground;
The method comprises the following steps:
The inner rod of the wheel set lifting driving rod 143 is retracted to drive the wheel set lifting moving cylinder 142 to move upwards in the wheel set lifting supporting cylinder 141, and the wheel set lifting moving cylinder 142 drives the main body driving wheels 12 to move upwards together, so that each main body driving wheel 12 moves upwards to be separated from the ground by 10cm.
Example 9:
The present embodiment describes a vertical batch sampling method for soil for environmental geological survey, which is based on the vertical batch sampling apparatus for soil for environmental geological survey of the above embodiment 4, and is different from embodiment 8 in that in step S7, the inside of the drill rod 23 in the sample is cleaned by the rod cleaning mechanism 26;
The method comprises the following steps:
The output shaft of the cleaning drive motor 266 drives the cleaning drive screw rod 264 to rotate, the cleaning rod drive column 263 is driven to reciprocate in the vertical direction in the cleaning rod drive support pipe shell 262 under the cooperation of screw transmission, the cleaning rod drive column 263 drives the cleaning support rod 261 to move together through the cleaning drive connection plate 2631, and the cleaning brush 2610 at the lower end of the cleaning support rod 261 is used for cleaning the soil remained in the drill rod 23 in the sampling process so as to perform the next sampling process, so that the phenomenon that the residual soil is mixed with the soil newly sampled to cause deviation in sample analysis is avoided;
simultaneously, the air compressor 267 is utilized to convey compressed air into the cleaning support rod 261, and air flows are sprayed out from each air flow spraying through hole 2611 to assist in cleaning the soil remained in the drill rod 23 in the sampling.
Example 10:
The present embodiment describes a vertical batch sampling method for soil for environmental geology investigation, which is based on the vertical batch sampling apparatus for soil for environmental geology investigation of the above-mentioned embodiment 4, and is different from embodiment 9 in that, in step S4, in the process of inserting the sample storage cylinder 320 of the number C 1 into the interior of the drill pipe 23 in sampling, the sample rotation mechanism 33 is utilized to drive the transfer magnet fixing cylinder 319 to rotate together with the sample storage cylinder 320 of the number C 1, so that the soil sample is more smoothly accommodated in the sample storage cylinder 320 of the number C 1, and the soil sample is firmly fixed in the sample storage cylinder 320 under the constraint of the sample constraint plate 3201;
The servo motor fixed on the sampling rotation fixed outer ring 331 is utilized to drive the sampling rotation driving inner ring 332 to rotate, a grating ruler sensor in the prior art is arranged between the sampling rotation fixed outer ring 331 and the sampling rotation driving inner ring 332, and the grating ruler sensor is used for accurately monitoring the relative movement position between the sampling rotation driving inner ring 332 and the sampling rotation fixed outer ring 331;
in practical application, the sampling equipment is used for collecting soil samples, and the calcium isotope tracing technology is used for analyzing hydrology and a soil system;
For example, in florida bay in the united states, the effect of subsea groundwater discharge on the estuary lagoon Ca circulation was demonstrated, with a 0.7%o gradient decrease in the delta 44/40Ca of the florida bay sediment and seawater toward florida swamp, which is the result of localized Ca input caused by subsea groundwater discharge. The submarine groundwater discharge has a higher Ca concentration and a lower delta 44/40Ca than seawater. Mixing calculation shows that the contribution of the submarine groundwater discharge and runoff of the surface water of the Florida swamp to the research water body is 8% -60%.
For example, using Ca and Sr isotopes to limit the carbonate cycle of the Australian kurong lagoon system, it was found that the delta 44/40Ca of the North lagoon was indeed similar to seawater, confirming that the North lagoon lake water was mostly derived from seawater, but that the delta 44/40Ca of the south lagoon was much higher than seawater, suggesting that Ca cycle in this part of the water would also require an additional process, i.e., not only simple mixing of seawater and surface water. A high delta 44/40Ca value indicates that carbonate deposition preferentially transfers 40Ca into the precipitate, enriching the lagoon with heavier isotopes. In the study of iceland rivers, it was found that although Sr isotopes are often used as reliable substitutes for Ca, the two systems still differ in that only delta 44/40Ca can clearly track Ca, which also represents the irreplaceability of Ca isotopes in this respect.
For example, by comparing delta 88/86Sr with delta 44/40Ca in iceland rivers, it is shown that Sr and Ca are likely to belong to the same source, flow with the body of water, and potentially track the same isotopic fractionation process, meaning that the isotopic composition of Sr and Ca may be affected by similar factors during weathering. By taking delta 44/40Ca and 87Sr/86Sr as main technical means, the main source characteristics of the river basin are explored, and the fact that the source and migration paths of arsenic under different geological units and hydrogeological conditions are determined by analyzing 87Sr/86Sr and delta 44/40Ca in groundwater and sediment samples is found, so that the transition of groundwater environment from oxidation to reduction condition is revealed. A conceptual model of arsenic migration and enrichment of groundwater based on 87Sr/86Sr and delta 44/40Ca is constructed. In the oxidation zone, the 87Sr/86Sr ratio was highest, indicating that the delta 44/40Ca was lowest in relation to the lateral replenishment of the bedrock crevice water in the mountainous area, indicating that calcium in the groundwater is mainly derived from silicate dissolution, that Ca2+ might enhance adsorption of As by increasing the surface charge of Fe/Mn oxide, in the medium reduction zone, the 87Sr/86Sr ratio was reduced in relation to incomplete dissolution of feldspar minerals in the aquifer, the delta 44/40Ca elevation was caused by continuous consumption of atmospheric CO2 and the production of HCO3-, in the strong reduction zone, the 87Sr/86Sr was lowest, in relation to the vertical mixing effect of shallow and deep groundwater, the delta 44/40Ca was highest, the secondary calcium precipitation caused by the degradation of a large amount of organics was further enhanced, the secondary calcium precipitation was As a byproduct, and the effect on arsenic migration was not great.
For example, understanding hydrologic processes such as water source determination, hydrologic cycle, mixing history of water, surface and deep water circulation, and groundwater recharge and exploitation are critical to sustainable management of water resources. The tracer materials such as stable isotope O, C, H, N, S, radioactive isotope U-Th-Ra and radioactive cause isotope Sr play an important role in tracking hydrologic pathways and mixing of water and solutes, and the Ca isotope is used as a supplementary tracer material, so that the analysis of the weathering effect of deep soil and the water source near the root system of trees is facilitated. In streams and springs, changes in delta 44/40Ca values can provide important information about vegetation interactions with weathering processes. In forest watercourses or larger, the calcium isotopes may also be affected by the mixing process and not just vegetation control. In addition, the calcium isotope difference in soil is mainly influenced by factors such as bedrock granite or basalt, early or later stage of weathering stage, vegetation covering forest or sparse vegetation, climate and the like. Plant growth absorbs light calcium in the soil, and efflorescence, plant spoilage and sedimentation all cause the light calcium to be re-input into the soil. The system is a system regulation mechanism, and the relationship between the land calcium isotope change and the actions of weathering, sedimentation and the like can be obtained through numerical simulation. As the depth of the soil changes, the Ca isotope composition also changes, which is related to many factors in between, such as ion exchange reactions, sources of calcium elements, plant absorption, organic redeposition, water in the water soil of nature, groundwater and surface water, water-rock interactions, and soil acidity and alkalinity, etc. Through research and analysis, ca, sr, nd, pb isotopes in annual rings of spruce in 1916 to 1983 are found, and Ca isotopes in annual rings of spruce show uniformity, which means that the source of Ca in spruce is not changed. The research shows that the Ca isotope provides important information for understanding the behavior of Ca in a soil solution and the stability of Ca absorption by plants, and plays an important role in utilizing the spruce annual rings as files for recording the chemical evolution of the uppermost soil.
For example, by analyzing the calcium isotope composition in ancient biological remains, scientists may infer the eating habits of these organisms for reconstruction of human eating habits, e.g., changes in the proportion of calcium isotopes may indicate changes in eating habits of animals during their life cycle, or eating patterns of the human population at different historic times.
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| Publication number | Priority date | Publication date | Assignee | Title |
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