CN114964890B - Deep soil dispersed collector with freezing function - Google Patents
Deep soil dispersed collector with freezing function Download PDFInfo
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- CN114964890B CN114964890B CN202210761490.1A CN202210761490A CN114964890B CN 114964890 B CN114964890 B CN 114964890B CN 202210761490 A CN202210761490 A CN 202210761490A CN 114964890 B CN114964890 B CN 114964890B
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- 239000002689 soil Substances 0.000 title claims abstract description 83
- 238000007710 freezing Methods 0.000 title claims abstract description 38
- 230000008014 freezing Effects 0.000 title claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 156
- 239000007788 liquid Substances 0.000 claims abstract description 78
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 78
- 238000005070 sampling Methods 0.000 claims abstract description 76
- 238000005553 drilling Methods 0.000 claims abstract description 21
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 36
- 238000005520 cutting process Methods 0.000 claims description 23
- 239000006185 dispersion Substances 0.000 claims description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 10
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 10
- 241001330002 Bambuseae Species 0.000 claims description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 10
- 239000011425 bamboo Substances 0.000 claims description 10
- 230000014759 maintenance of location Effects 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 5
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000000407 epitaxy Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a deep soil distributed collector with a freezing function, which relates to the technical field of environmental pollution investigation, wherein a vertical drill support driving unit for driving a drill rod to vertically drill into a soil layer is arranged above a crawler, a horizontal sampling freezing driving unit for performing distributed sampling and freezing the sampled soil to prevent volatilization of organic pollutants is commonly arranged at the bottom end and the inside of the drill rod, a structure for horizontally and transversely extending to collect soil samples around the deep soil layer is further arranged on the drill rod, one vertical drill is realized, soil samples of a plurality of points around are collected at the same time, multiple drill holes are not required to be drilled for a plurality of times by using large drilling equipment to obtain the soil samples, in addition, a liquid nitrogen freezing system is also arranged at the same time of collecting the samples of the multiple points around, and the liquid nitrogen freezing system can be used for freezing and preserving the completely volatilized or semi-volatilized organic pollutants in the soil, so that the effectiveness of collecting the soil samples is improved.
Description
Technical Field
The invention relates to the technical field of environmental pollution investigation, in particular to a deep soil dispersion type collector with a freezing function.
Background
In recent years, china has achieved remarkable results in the development of socioeconomic performance. However, the explosive development of industries such as industry, agriculture, mining, transportation and the like aggravates the contradiction between human beings and the environment. The unreasonable production and development activities cause associated pollutants to gradually sink into the nearby soil environment, so that the environment quality of the soil gradually decreases and the heavy metals exceed standards, the problem of pollution to the environment of the soil, which cannot be ignored, is formed, and the balance of a local ecological system and the health and safety of human beings are threatened.
Soil pollution investigation is the first important link to solve environmental problems. The accuracy of the soil survey results is then dependent on the representativeness of the collected soil samples. For this purpose, a "quincuncial combined" sampling is generally performed, i.e. a plurality of samples are collected at the center and around a sample coordinate, and mixed into one soil sample. The advantage of this collection is that the blended soil sample can be a representative sample of the sampled coordinate region. For surface layer (0-20 cm) soil, the mode has no collection difficulty. But this approach is clearly unsuitable once the deep soil has to be collected.
Currently, drilling techniques are used for the collection of deep soil samples. On the one hand, the cost of the drilling technology is high; on the other hand, the technology is not suitable for collecting volatile and semi-volatile organic polluted soil, and as the soil is disturbed in the drilling process, the volatile and semi-volatile organic pollutants volatilize into the air, so that the content of the pollutants in the soil is reduced, and the collected soil sample is distorted and cannot represent in-situ soil. Therefore, for volatile and semi-volatile organic contaminated deep soil, development of a novel in-situ collection technology is needed, and for this purpose, those skilled in the art propose a deep soil dispersion type collector with a freezing function.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the deep soil dispersion type collector with the freezing function, which can quickly, timely and accurately obtain a deep in-situ soil sample on a first site and avoid the volatilization effect of organic pollutants.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the deep soil decentralized collector with the freezing function comprises a tracked vehicle, wherein the tracked vehicle controls a travelling path through an operation panel, a vertical drill support driving unit for driving a drill rod to vertically drill into a soil layer is arranged above the tracked vehicle, a horizontal sampling freezing driving unit for decentralized sampling and freezing the sampled soil to prevent volatilization of organic pollutants is jointly arranged at the bottom end and the inside of the drill rod, and a drill bit for drilling the soil is arranged at the bottom end of the horizontal sampling freezing driving unit;
The horizontal sampling freezing driving unit comprises a first mounting frame and a second mounting frame which are sequentially arranged in the drill rod from top to bottom, a drilling barrel is fixedly connected between the horizontal sampling freezing driving unit and a drill bit through a flange plate, a liquid nitrogen storage tank is arranged above the first mounting frame, a liquid nitrogen delivery pump is arranged in the middle of the upper part of the second mounting frame, the input end of the liquid nitrogen delivery pump is connected with the output end of the liquid nitrogen storage tank in series through a liquid nitrogen delivery pipe, a pushing-down driving hydraulic cylinder with a telescopic end downwards is arranged in the middle of the lower part of the second mounting frame, a transverse sampling unit is arranged at the bottom end of the drilling barrel, and a liquid nitrogen diversion mechanism is arranged above the second mounting frame and outside the liquid nitrogen delivery pump;
The transverse sampling unit comprises a bearing base fixedly mounted at the bottom end inside the drilling barrel, the top end of the bearing base is connected with a plurality of limit posts distributed in a circumference manner, the circumference of the bearing base is provided with a plurality of steering transition cambered surfaces, the inside of the limit posts is jointly provided with a pushing-down linkage plate fixedly connected with the telescopic end of the pushing-down driving hydraulic cylinder, a pushing-down sliding cavity for vertically sliding the pushing-down linkage plate is reserved between two adjacent limit posts, each limit post and each steering transition cambered surface jointly correspond to a group of horizontal extension sampling mechanisms, and the circumference of the drilling barrel is provided with a plurality of horizontal extension holes for the horizontal extension sampling mechanisms to extend outwards horizontally;
Every group the level is epitaxial sampling mechanism all is by a plurality of sampling is kept somewhere the section of thick bamboo and forms jointly, and a plurality of sampling is kept somewhere the adjacent terminal surface of section of thick bamboo and all hinges together, every the sampling is kept somewhere the lateral wall of section of thick bamboo all is fixed with the pipe strap, a plurality of the inside of pipe strap alternates jointly and is provided with a liquid nitrogen and carries flexible pipe, every two between the section of thick bamboo is kept somewhere to the sampling and all be provided with liquid nitrogen and spout the mouth with articulated one side opposite of department the lateral wall of flexible pipe is carried to liquid nitrogen and is corresponding every liquid nitrogen spouts the position of mouth and all is connected with the liquid nitrogen shower nozzle, is located the bottom the sampling is kept somewhere the tip of section of thick bamboo and articulates there is the soil rotary-cut mechanism that is used for cutting soil.
As a further technical scheme of the invention, the side wall of the sampling indwelling barrel positioned at the topmost part is fixedly connected with the end part of the pushing-down linkage plate.
As a further technical scheme of the invention, the liquid nitrogen diversion mechanism comprises a diversion box arranged at the upper edge of the second mounting frame, the top end of the diversion box is sealed through an annular cover plate, a liquid nitrogen pump joint connected with the output end of the liquid nitrogen conveying pump in series is arranged on the annular cover plate, the bottom end of the diversion box is communicated and connected with a plurality of spring pipes in series, and each spring pipe is connected with the liquid nitrogen conveying flexible pipe at a corresponding position in series.
As a further technical scheme of the invention, the soil rotary-cut mechanism comprises a connecting cylinder hinged with the sampling retaining cylinder at the bottommost part, a motor mounting groove is formed in the top of the connecting cylinder, a rotary-cut driving motor is mounted in the motor mounting groove, and a driving gear is mounted at the driving end of the rotary-cut driving motor.
As a further technical scheme of the invention, a cutter mounting groove is formed in the end part of the connecting cylinder, a rotary cutter is rotationally connected in the cutter mounting groove, a gear ring mounting ring is connected to the end surface of the rotary cutter facing the cutter mounting groove, a driven outer gear ring meshed with the driving gear is fixedly sleeved outside the gear ring mounting ring, and the rotary cutter is communicated with the connecting cylinder.
As a further technical scheme of the invention, the vertical drill support driving unit comprises a crawler carrier platform arranged on the crawler, wherein two sides above the crawler carrier platform are respectively and correspondingly provided with a carrier beam and a limiting chute, a sliding seat is slidably arranged in the limiting chute, a turnover driving hydraulic cylinder is arranged on the side wall of the carrier beam, and the telescopic end of the turnover driving hydraulic cylinder is fixedly connected with the sliding seat.
According to the invention, a fixed bearing frame is hinged above the bearing beam, a movable bearing frame is arranged in the fixed bearing frame in a sliding manner, limiting and guiding are carried out between the fixed bearing frame and the movable bearing frame through a plurality of groups of guiding wheel groups, two groups of drill driving hydraulic cylinders are hinged above the bearing beam and positioned on two sides of the fixed bearing frame, telescopic ends of the two groups of drill driving hydraulic cylinders are connected to the top of the movable bearing frame together, and a supporting swing arm is hinged with the fixed bearing frame together.
As a further technical scheme of the invention, a motor mounting seat is arranged on the front side of the top of the movable bearing frame, a driving motor is arranged in the motor mounting seat, the driving end of the driving motor is fixedly connected with the top end of the drill rod through a coupler, the drill rod is provided with a plurality of sections, and the sections of the drill rod are all fixed through flanges.
Advantageous effects
The invention provides a deep soil dispersion type collector with a freezing function. Compared with the prior art, the method has the following beneficial effects:
This deep soil dispersion formula collector with freezing function, through being provided with drilling rod, drill bit and the drive unit who is used for vertical boring down of vertical boring down into soil layer respectively, still carry on the drilling rod simultaneously and set up the structure that is used for horizontal epitaxy to gather deep soil layer soil sample all around, realized once vertical boring down, gather the soil sample of a plurality of positions around simultaneously, need not to utilize large-scale drilling equipment to carry out boring down many times and obtain multiple spot soil sample, in addition, when gathering multiple spot sample all around, still be equipped with liquid nitrogen refrigerating system, can freeze the preservation to volatilizing or semi-volatile organic pollutant in the soil completely, improve the validity of soil sample collection.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a horizontal sampling freeze drive unit according to the present invention;
FIG. 3 is a schematic diagram of an exploded structure of a lateral sampling unit according to the present invention;
FIG. 4 is a schematic diagram of the structure of the horizontal epitaxial sampling mechanism of the present invention;
FIG. 5 is a cross-sectional view of a horizontal epitaxial sampling mechanism of the present invention;
FIG. 6 is a schematic diagram of the liquid nitrogen diversion mechanism of the present invention;
FIG. 7 is a schematic view of an exploded construction of the soil rotary cutting mechanism of the present invention;
FIG. 8 is a schematic view of an assembled structure of the soil rotary cutting mechanism of the present invention;
FIG. 9 is a cross-sectional view of the soil rotary cutting mechanism of the present invention;
FIG. 10 is a schematic view of the structure of the vertical drill support drive unit of the present invention;
FIG. 11 is a cross-sectional view of the internal structure of the drill rod of the present invention;
FIG. 12 is a cross-sectional view of the horizontal epitaxial sampling mechanism of FIG. 11 after being pushed out of the drill pipe in accordance with the present invention;
Fig. 13 is a perspective view of the horizontal epitaxial sampling mechanism of fig. 11 after being pushed out of the drill pipe in accordance with the present invention.
In the figure: 1. a crawler; 2. a vertical drill support drive unit; 21. a crawler carrier platform; 22. limiting sliding grooves; 23. a load-bearing cross beam; 24. a slide; 25. a turnover driving hydraulic cylinder; 26. a fixed bearing frame; 27. a movable carrying frame; 28. a guide wheel set; 29. a drill driving hydraulic cylinder; 210. supporting a swing arm; 211. a motor mounting seat; 212. a coupling; 213. a driving motor; 3. a drill rod; 4. a horizontal sampling freeze driving unit; 41. a first mounting frame; 42. a second mounting frame; 43. drilling a cylinder; 431. a horizontally extending hole; 44. a liquid nitrogen storage tank; 45. a liquid nitrogen delivery pump; 46. pushing down to drive the hydraulic cylinder; 47. a lateral sampling unit; 471. a horizontal epitaxial sampling mechanism; 4711. a sampling retention cylinder; 4712. a pipe clamp; 4713. a liquid nitrogen delivery flexible tube; 4714. a liquid nitrogen injection port; 4715. a liquid nitrogen spray head; 4716. a soil rotary cutting mechanism; 4716-1, a connecting cylinder; 4716-2, motor mounting slots; 4716-3, rotary cutting driving motor; 4716-4, a drive gear; 4716-5, cutter mounting groove; 4716-6, rotary cutting tool; 4716-7, a gear ring mounting ring; 4716-8, driven outer gear ring; 472. a limit column; 473. turning to a transitional cambered surface; 474. pushing down the sliding cavity; 475. pushing down the linkage plate; 476. a load-bearing base; 48. a liquid nitrogen delivery pipe; 49. a liquid nitrogen diversion mechanism; 491. a shunt box; 492. an annular cover plate; 493. a liquid nitrogen pump joint; 494. a spring tube; 5. a drill bit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: the deep soil dispersion type collector with the freezing function comprises a crawler 1, wherein the crawler 1 controls a travelling path by an operation panel, and the operation panel is connected with the crawler 1 in a wireless or wired manner; the vertical drill support driving unit 2 for driving the drill rod 3 to vertically drill into the soil layer is arranged above the crawler 1, the drill rod 3 is provided with a plurality of sections, the drill rods 3 of the sections are all fixed through flanges, the horizontal sampling freezing driving unit 4 for performing dispersed sampling and freezing the sampled soil to prevent organic pollutants from volatilizing is jointly arranged at the bottom end and the inside of the drill rod 3, and the drill bit 5 for drilling the soil is arranged at the bottom end of the horizontal sampling freezing driving unit 4.
Referring to fig. 2, the horizontal sampling freezing driving unit 4 includes a first mounting frame 41 and a second mounting frame 42 sequentially installed inside the drill rod 3 from top to bottom, a drill barrel 43 is fixedly connected between the horizontal sampling freezing driving unit 4 and the drill bit 5 through a flange, a liquid nitrogen storage tank 44 is installed above the first mounting frame 41, a liquid nitrogen delivery pump 45 is installed in the middle of the second mounting frame 42, an input end of the liquid nitrogen delivery pump 45 is connected with an output end of the liquid nitrogen storage tank 44 in series through a liquid nitrogen delivery pipe 48, a pushing driving hydraulic cylinder 46 with a downward telescopic end is installed in the middle of the second mounting frame 42, a transverse sampling unit 47 is installed at the bottom end inside the drill barrel 43, and a liquid nitrogen diversion mechanism 49 is installed above the second mounting frame 42 and outside the liquid nitrogen delivery pump 45.
Referring to fig. 3, the transverse sampling unit 47 includes a bearing base 476 fixedly mounted at the bottom end inside the drill barrel 43, a plurality of circumferentially distributed limiting columns 472 are connected to the top end of the bearing base 476, a plurality of steering transition cambered surfaces 473 are circumferentially arranged on the bearing base 476, a pushing-down linkage plate 475 fixedly connected with the telescopic end of the pushing-down driving hydraulic cylinder 46 is jointly arranged inside the plurality of limiting columns 472, a pushing-down sliding cavity 474 for vertically sliding the pushing-down linkage plate 475 is reserved between two adjacent limiting columns 472, each limiting column 472 and each steering transition cambered surface 473 jointly correspond to a group of horizontally extending sampling mechanisms 471, and a plurality of horizontally extending holes 431 for horizontally extending outwards by the horizontally extending sampling mechanisms 471 are circumferentially arranged on the drill barrel 43.
Referring to fig. 4-5, each group of horizontal extension sampling mechanism 471 is formed by a plurality of sampling remaining cylinders 4711, adjacent end faces of the plurality of sampling remaining cylinders 4711 are all hinged together, a pipe clamp 4712 is fixed on the side wall of each sampling remaining cylinder 4711, a liquid nitrogen conveying flexible pipe 4713 is inserted in the plurality of pipe clamps 4712, a liquid nitrogen spraying opening 4714 is formed in one side, opposite to the hinged position, between each two sampling remaining cylinders 4711, a liquid nitrogen spray nozzle 4715 is connected to the side wall of the liquid nitrogen conveying flexible pipe 4713 and corresponding to the position of each liquid nitrogen spraying opening 4714, the side wall of the sampling remaining cylinder 4711 located at the top is fixedly connected with the end part of the pushing-down linkage plate 475, and a soil rotary cutting mechanism 4716 for cutting soil is hinged to the end part of the sampling remaining cylinder 4711 located at the bottom.
Referring to fig. 6, the liquid nitrogen splitting mechanism 49 includes a splitting box 491 mounted on the upper edge of the second mounting frame 42, the top end of the splitting box 491 is sealed by an annular cover plate 492, a liquid nitrogen pump joint 493 connected in series with the output end of the liquid nitrogen conveying pump 45 is provided on the annular cover plate 492, the bottom end of the splitting box 491 is connected in series with a plurality of spring tubes 494, each spring tube 494 is connected in series with a liquid nitrogen conveying flexible tube 4713 at a corresponding position, the spring tubes 494 are provided to facilitate the distance increase and the liquid nitrogen conveying feasibility of each group of horizontal epitaxial sampling mechanisms 471 during epitaxy, and the liquid nitrogen conveying flexible tube 4713 is provided to facilitate the liquid nitrogen conveying of the whole horizontal epitaxial sampling mechanism 471 during the conversion from vertical to horizontal.
Referring to fig. 7-9, the soil rotary cutting mechanism 4716 comprises a connecting cylinder 4716-1 hinged with a sampling retention cylinder 4711 at the bottommost part, a motor mounting groove 4716-2 is formed in the top of the connecting cylinder 4716-1, a rotary cutting driving motor 4716-3 is mounted in the motor mounting groove 4716-2, a driving gear 4716-4 is mounted at the driving end of the rotary cutting driving motor 4716-3, a cutter mounting groove 4716-5 is formed in the end part of the connecting cylinder 4716-1, a rotary cutting cutter 4716-6 is rotatably connected in the cutter mounting groove 4716-5, a gear ring mounting ring 4716-7 is connected to the end face of the rotary cutting cutter 4716-6 facing the cutter mounting groove 4716-5, a driven outer gear ring 4716-8 meshed with the driving gear 4716-4 is fixedly sleeved outside the gear mounting ring 4716-7, the rotary cutting cutter 4716-6 is communicated with the connecting cylinder 4716-1, a protective cover is arranged at the meshed position of the corresponding driving gear 4716-4 and the driven outer gear 4716-8, and the sealing structure can be a sealing structure, so that the sealing structure can be used in the process, the friction and the soil can be prevented from being influenced in the process.
Referring to fig. 10, the vertical drill support driving unit 2 includes a crawler carrier platform 21 disposed on the crawler 1, a carrier beam 23 and a limiting chute 22 are correspondingly disposed on two sides above the crawler carrier platform 21, a slide seat 24 is slidably disposed in the limiting chute 22, a turning driving hydraulic cylinder 25 is mounted on a side wall of the carrier beam 23, a telescopic end of the turning driving hydraulic cylinder 25 is fixedly connected with the slide seat 24, a fixed carrier frame 26 is hinged above the carrier beam 23, a movable carrier frame 27 is slidably disposed in the fixed carrier frame 26, a plurality of groups of guide wheel groups 28 disposed between the fixed carrier frame 26 and the movable carrier frame 27 are used for limiting and guiding, two groups of drill driving hydraulic cylinders 29 are hinged above the carrier beam 23 and on two sides of the fixed carrier frame 26, the telescopic ends of the two groups of drill driving hydraulic cylinders 29 are jointly connected to the top of the movable carrier frame 27, a supporting swing arm 210 is jointly hinged with the fixed carrier frame 26, a motor mount 211 is mounted on the front side of the top of the movable carrier frame 27, a motor drive end 213 is mounted in the motor mount 211, and a driving end 213 is driven by a plurality of guide wheel groups 28, and a drill rod 3 is driven by a driving shaft 212 to rotate and is connected with the top end 213.
In addition, in this embodiment, since the whole apparatus needs electric energy to support when extending horizontally and is inconvenient to connect with external wires for power supply during the drilling process, a power source (not shown in the figure) is further provided inside the drill rod 3, and this power source mainly provides electric energy for the liquid nitrogen transfer pump 45, the push-down driving hydraulic cylinder 46 and the rotary cutting driving motor 4716-3, and how to control the states of the liquid nitrogen transfer pump 45, the push-down driving hydraulic cylinder 46 and the rotary cutting driving motor 4716-3 is a prior art, which will not be described in detail herein.
When the drill rod 3, the horizontal sampling freezing driving unit 4 and the drill bit 5 are integrally rotated by starting the driving motor 213 through the coupler 212, and simultaneously, the drill driving hydraulic cylinder 29 is controlled to be shortened during rotation, so that the drill rod 3 is matched with the drill bit 5 to drill into a soil layer;
After drilling to a certain depth, the driving motor 213 is closed, the drilling is stopped, then, the pushing driving hydraulic cylinder 46, the rotary cutting driving motor 4716-3 and the liquid nitrogen conveying pump 45 are simultaneously operated normally, the pushing driving hydraulic cylinder 46 pushes the pushing linkage plate 475 to move downwards in the pushing sliding cavity 474, and as the pushing linkage plate 475 is fixedly connected with the topmost sampling remaining cylinders 4711, all the topmost sampling remaining cylinders 4711 are pushed to move downwards synchronously, each sampling remaining cylinder 4711 is hinged and matched with the turning transition cambered surface 473, so that each sampling remaining cylinder 4711 which is originally in a vertical state is in a horizontal state after passing through the turning transition cambered surface 473 and comes out from the horizontal extending hole 431;
In the whole moving process of the sampling retention cylinder 4711, the rotary-cut driving motor 4716-3 drives the driven outer gear 4716-8 to rotate through the driving gear 4716-4, so that the rotary-cut cutter 4716-6 is driven to rotate at a high speed to cut a soil layer, and the aim of propelling and collecting the soil while cutting is achieved;
In the process of horizontally and peripherally scattered collection of soil samples, the liquid nitrogen conveying pump 45 pumps out liquid nitrogen in the liquid nitrogen storage tank 44 through the liquid nitrogen conveying pipe 48 and conveys the liquid nitrogen to the split box 491 through the liquid nitrogen pump joint 493, the split box 491 conveys the liquid nitrogen to each spring pipe 494 respectively, each spring pipe 494 conveys the liquid nitrogen to the corresponding liquid nitrogen conveying flexible pipe 4713 and finally sprays the liquid nitrogen into the soil samples in the sampling retention cylinder 4711 through the liquid nitrogen spray head 4715 and the liquid nitrogen spraying port 4714, so that the soil samples are frozen, the volatilization of completely volatilized or semi-volatilized organic pollutants in the soil is prevented, and the effectiveness of sampling is ensured;
When each group of horizontal extension sampling mechanism 471 collects soil, the push-down driving hydraulic cylinder 46 contracts, the same operation is carried back to the soil collected in each sampling retention cylinder 4711, after the horizontal extension sampling mechanism 471 recovers the initial position, the drill driving hydraulic cylinder 29 extends, the drill rod 3 is pulled out from the soil layer, after the drill rod 3 is pulled out, the worker removes the flanges of the drill cylinder 43 and the drill bit 5, and the soil collected in the sampling retention cylinder 4711 is taken out;
When the soil sampling is completed, the whole equipment needs to be folded, firstly, the overturning driving hydraulic cylinder 25 is controlled to extend, the sliding seat 24 is pushed to move towards the tail of the crawler 1 in the limiting sliding groove 22, in the moving process, the supporting swing arm 210 rotates anticlockwise, a pulling force is generated on the fixed bearing frame 26, the fixed bearing frame 26 is driven to rotate clockwise until the fixed bearing frame 26 is in place, the drilling driving hydraulic cylinder 29 is controlled to shorten after the fixed bearing frame 26 is in place, and the movable bearing frame 27 moves into the fixed bearing frame 26 under the action of the guide wheel set 28.
Claims (7)
1. A deep soil dispersion type collector with a freezing function, which comprises a crawler (1), and is characterized in that the crawler (1) controls a travelling path by an operation panel; a vertical drill support driving unit (2) for driving a drill rod (3) to vertically drill into a soil layer is arranged above the crawler (1), a horizontal sampling freezing driving unit (4) for performing dispersed sampling and freezing the sampled soil to prevent volatilization of organic pollutants is jointly arranged at the bottom end and the inside of the drill rod (3), and a drill bit (5) for drilling the soil is arranged at the bottom end of the horizontal sampling freezing driving unit (4);
The horizontal sampling freezing driving unit (4) comprises a first mounting frame (41) and a second mounting frame (42) which are sequentially arranged inside the drill rod (3) from top to bottom, a drilling barrel (43) is fixedly connected between the horizontal sampling freezing driving unit (4) and a drill bit (5) through a flange plate, a liquid nitrogen storage tank (44) is arranged above the first mounting frame (41), a liquid nitrogen conveying pump (45) is arranged in the middle of the upper part of the second mounting frame (42), the input end of the liquid nitrogen conveying pump (45) is connected with the output end of the liquid nitrogen storage tank (44) in series through a liquid nitrogen conveying pipe (48), a pushing driving hydraulic cylinder (46) with a telescopic end downwards is arranged in the middle of the lower part of the second mounting frame (42), a horizontal sampling unit (47) is arranged at the inner bottom end of the drilling barrel (43), and a liquid nitrogen splitting mechanism (49) is arranged above the second mounting frame (42) and outside the liquid nitrogen conveying pump (45); the liquid nitrogen diversion mechanism (49) comprises a diversion box (491) arranged at the upper edge of the second mounting frame (42), the top end of the diversion box (491) is sealed through an annular cover plate (492), a liquid nitrogen pump joint (493) connected with the output end of the liquid nitrogen conveying pump (45) in series is arranged on the annular cover plate (492), the bottom end of the diversion box (491) is communicated and connected with a plurality of spring pipes (494) in series, and each spring pipe (494) is connected with a liquid nitrogen conveying flexible pipe (4713) at a corresponding position in series;
The transverse sampling unit (47) comprises a bearing base (476) fixedly mounted at the bottom end inside the drill cylinder (43), a plurality of circumferentially distributed limit posts (472) are connected to the top end of the bearing base (476), a plurality of steering transition cambered surfaces (473) are circumferentially arranged on the bearing base (476), a plurality of push-down linkage plates (475) fixedly connected with the telescopic ends of push-down driving hydraulic cylinders (46) are jointly arranged inside the limit posts (472), a push-down sliding cavity (474) for vertically sliding the push-down linkage plates (475) is reserved between two adjacent limit posts (472), each limit post (472) and each steering transition cambered surface (473) jointly correspond to a group of horizontal extension sampling mechanisms (471), and a plurality of horizontal extension holes (431) for horizontally extending outwards of the horizontal extension sampling mechanisms (471) are circumferentially arranged on the drill cylinder (43);
every group horizontal extension sampling mechanism (471) all is by a plurality of sampling keep somewhere a section of thick bamboo (4711) and forms jointly, and the adjacent terminal surface that a plurality of sampling kept somewhere a section of thick bamboo (4711) all articulates together, every the lateral wall that a section of thick bamboo (4711) was kept somewhere in the sampling all is fixed with pipe strap (4712), a plurality of the inside of pipe strap (4712) alternates jointly and is provided with a liquid nitrogen transportation flexible pipe (4713), every two between a section of thick bamboo (4711) and with articulated department opposite one side all is provided with liquid nitrogen and spouts mouth (4714) the lateral wall of liquid nitrogen transportation flexible pipe (4713) just corresponds every liquid nitrogen spouts the position of mouth (4714) all is connected with liquid nitrogen shower nozzle (4715), is located the tip that a section of thick bamboo (4711) was kept somewhere in the sampling articulates there is soil rotary-cut mechanism (4716) that is used for cutting soil.
2. The deep soil dispersion type harvester with freezing function as set forth in claim 1, wherein a side wall of said sample retention tube (4711) at the top is fixedly connected with an end of said push-down linkage plate (475).
3. The deep soil dispersion type collector with the freezing function according to claim 1, wherein the soil rotary cutting mechanism (4716) comprises a connecting cylinder (4716-1) hinged with the sampling retention cylinder (4711) at the bottommost part, a motor mounting groove (4716-2) is formed in the top of the connecting cylinder (4716-1), a rotary cutting driving motor (4716-3) is mounted in the motor mounting groove (4716-2), and a driving gear (4716-4) is mounted at the driving end of the rotary cutting driving motor (4716-3).
4. A deep soil dispersion type collector with freezing function according to claim 3, wherein a cutter mounting groove (4716-5) is formed at the end of the engagement cylinder (4716-1), a rotary cutter (4716-6) is rotatably connected in the cutter mounting groove (4716-5), a gear ring mounting ring (4716-7) is connected to the end face of the rotary cutter (4716-6) facing the cutter mounting groove (4716-5), a driven outer gear ring (4716-8) meshed with the driving gear (4716-4) is fixedly sleeved outside the gear ring mounting ring (4716-7), and the rotary cutter (4716-6) is communicated with the engagement cylinder (4716-1).
5. The deep soil dispersion type collector with the freezing function according to claim 1, wherein the vertical drill support driving unit (2) comprises a crawler carrier platform (21) arranged on the crawler (1), two sides above the crawler carrier platform (21) are respectively and correspondingly provided with a carrier beam (23) and a limiting chute (22), a sliding seat (24) is arranged in the limiting chute (22) in a sliding manner, a turnover driving hydraulic cylinder (25) is arranged on the side wall of the carrier beam (23), and the telescopic end of the turnover driving hydraulic cylinder (25) is fixedly connected with the sliding seat (24).
6. The deep soil dispersion type collector with the freezing function according to claim 5, wherein a fixed bearing frame (26) is hinged above the bearing beam (23), a movable bearing frame (27) is slidably arranged in the fixed bearing frame (26), limiting and guiding are performed between the fixed bearing frame (26) and the movable bearing frame (27) through a plurality of groups of guide wheel groups (28) arranged, two groups of drill driving hydraulic cylinders (29) are hinged above the bearing beam (23) and positioned on two sides of the fixed bearing frame (26), telescopic ends of the two groups of drill driving hydraulic cylinders (29) are connected to the top of the movable bearing frame (27) together, and a supporting swing arm (210) is hinged between the sliding seat (24) and the fixed bearing frame (26) together.
7. The deep soil dispersion type collector with the freezing function according to claim 6, wherein a motor mounting seat (211) is mounted on the front side of the top of the movable bearing frame (27), a driving motor (213) is mounted in the motor mounting seat (211), the driving end of the driving motor (213) is fixedly connected with the top end of the drill rod (3) through a coupler (212), the drill rod (3) is provided with a plurality of sections, and the drill rods (3) are all fixed through flanges.
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| CN116678669B (en) * | 2023-07-06 | 2023-11-17 | 青海省生态环境监测中心 | Deep surface soil sampling device and method for environment detection |
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| CN117449760B (en) * | 2023-12-21 | 2024-03-15 | 水发能源集团有限公司 | Soil layer drilling device for foundation construction of wind power equipment |
| CN117606849B (en) * | 2024-01-22 | 2024-05-07 | 黑龙江省林业科学院伊春分院 | Wetland soil collection system |
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Inventor after: Xia Hui Inventor after: Jin Yanni Inventor after: Guo Jungang Inventor after: Cheng Pengju Inventor after: Lu Bangwen Inventor before: Xia Hui Inventor before: Guo Jungang Inventor before: Cheng Pengju Inventor before: Lu Bangwen |