CN110763508A - In-situ thermal desorption soil thermal sampling device and use method - Google Patents
In-situ thermal desorption soil thermal sampling device and use method Download PDFInfo
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- CN110763508A CN110763508A CN201911077049.6A CN201911077049A CN110763508A CN 110763508 A CN110763508 A CN 110763508A CN 201911077049 A CN201911077049 A CN 201911077049A CN 110763508 A CN110763508 A CN 110763508A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—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
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses an in-situ thermal desorption soil thermal sampling device and a using method thereof, wherein the thermal sampling device comprises: the device comprises soil sampling equipment, a hydraulic device, a rotary power device, an outer sleeve and a core taking pipe; the soil sampling equipment is provided with two groups of vertically arranged hydraulic devices, a horizontal cross beam is arranged between the two groups of hydraulic devices, a rotary power device is arranged on the horizontal cross beam, an outer sleeve is coaxially arranged on the rotary power device, and the horizontal cross beam and the rotary power device move up and down under the driving of the hydraulic devices; the bottom in the outer sleeve is provided with a core taking pipe, the front end of the core taking pipe is provided with a drill bit, the rear end of the core taking pipe is connected with a rotary power device, and the drill bit is provided with a helical blade matched with the inner wall surface of the outer sleeve. Through the technical scheme of the invention, the soil sample at high temperature is effectively collected, the cross contamination in the sampling process is avoided, the detection authenticity of the soil sample is improved, and the construction time is saved.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to an in-situ thermal desorption soil thermal sampling device and a use method of the in-situ thermal desorption soil thermal sampling device.
Background
With the promulgation and implementation of soil pollution control laws, the soil pollution control enters a rapid growth period. In recent years, the repair engineering of organic contaminated sites applying in-situ thermal desorption technology is increasing, in order to master the repair effect, soil samples need to be collected in the soil heating or cooling process, and the collection of the soil samples is inevitably required to be carried out at high temperature.
At present, the collection of contaminated site soil sample relies on equipment such as 30 type rig, hectometer rig and Geoprobe rig mainly, it is mostly the PP material to get the core pipe, only be applicable to normal atmospheric temperature soil, after the thermal desorption technique is implemented, soil temperature is about 100 ℃ more even higher even, in-process is established in the brill, it can take place to decompose or even melt because soil temperature is too high to get the core pipe, be difficult to get soil sample, even gather partial sample, because the decomposition of PP material is very big to soil sample's interference, the analysis result is inaccurate, therefore, the application demand of soil thermal sampling equipment and technique is more and more.
Disclosure of Invention
Aiming at least one of the problems, the invention provides an in-situ thermal desorption soil thermal sampling device and a using method thereof, aiming at the soil sample collection at the temperature of 80-200 ℃, the soil sampling device, an outer sleeve, a core taking pipe and a driving device are matched and connected, and the collected soil sample at high temperature is sealed and stored with an ice block and a sealing device, so that the soil sample at high temperature is effectively collected, the cross contamination in the sampling process is avoided, the detection authenticity of the soil sample is improved, and the construction time is saved.
In order to achieve the above object, the present invention provides an in-situ thermal desorption soil thermal sampling device, comprising: the device comprises soil sampling equipment, a hydraulic device, a rotary power device, an outer sleeve and a core taking pipe; the soil sampling equipment is provided with two groups of vertically arranged hydraulic devices, a horizontal cross beam is arranged between the two groups of hydraulic devices, the horizontal cross beam is provided with the rotary power device, the rotary power device is coaxially provided with the outer sleeve, and the horizontal cross beam and the rotary power device move up and down under the driving of the hydraulic devices; the bottom in the outer sleeve is provided with the core taking pipe, the core taking pipe is of a hollow pipe body structure, the front end of the core taking pipe is provided with a drill bit, the rear end of the core taking pipe is connected with the rotary power device, the drill bit is provided with a helical blade matched with the inner wall surface of the outer sleeve, and the rotary power device drives the drill bit to drill down or lift up.
In the above technical solution, preferably, the soil sampling device has a moving assembly, and the soil sampling device is moved on the ground by the moving assembly.
In the above technical scheme, preferably, the coring pipe drives the head including the top, and the bumper shock absorber, core appearance pipe top drive, soil coring steel pipe, coring pipe outer tube and coring bit, the top drive the cap pass through the bumper shock absorber with core appearance pipe top drive the head and be connected, core appearance pipe top drive the head set up in the top of soil coring steel pipe, soil coring steel pipe set up in the coring pipe outer tube, coring bit set up in the bottom outside of coring pipe outer tube, coring bit center have the through-hole with soil coring steel pipe communicates with each other.
In the above technical solution, preferably, a limit bracket is arranged on the horizontal beam, the limit bracket is installed below the rotary power device, a guide hole matched with the outer sleeve is arranged on the limit bracket, when the outer sleeve needs to be lengthened, the connection between the outer sleeve and the rotary power device is released, the hydraulic device drives the horizontal beam to ascend, the next section of outer sleeve passes through the guide hole from bottom to top, a clamping device is arranged on the outer wall of the outer sleeve to support the section of outer sleeve, the section of outer sleeve is connected with the rotary power device, and the section of outer sleeve is connected with the original outer sleeve.
In the above technical solution, preferably, the coring pipe is made of stainless steel.
In the above technical solution, preferably, the soil sampling device is a Geoprobe drilling machine.
The invention also provides a use method of the in-situ thermal desorption soil thermal sampling device provided by the technical scheme, which comprises the following steps: the horizontal beam and the rotary power device are driven to descend by the hydraulic device, so that the outer sleeve can drill into the soil under the action of pressure; the rotary power device drives a drill bit in the coring pipe at the bottom of the outer sleeve to rotate and drill downwards, and then the drill bit rotates reversely and lifts up to empty soil in the outer sleeve; and lifting the core taking pipe reaching the sampling depth out of the ground, sealing two ends of the core taking pipe by using a red black cap, and then loading the core taking pipe into a sample loading box, wherein the sample loading box is subjected to emergency cooling treatment.
In the above technical solution, preferably, the emergency cooling treatment of the sample loading box adopts adding ice blocks to cool, so that the temperature in the sample loading box is lower than 4 ℃.
In the above technical solution, preferably, when a section of the outer casing pipe still does not reach the preset depth after being drilled into the soil body, the connection between the section of the outer casing pipe and the rotary power device is released, the hydraulic device drives the horizontal beam to ascend, a next section of the outer casing pipe passes through the guide hole from bottom to top, and the clamping device is used to support the section of the outer casing pipe, connect the section of the outer casing pipe with the rotary power device, connect the section of the outer casing pipe with the original outer casing pipe, and continue to press down to the preset depth.
Compared with the prior art, the invention has the beneficial effects that: aiming at the collection of the soil sample at the temperature of 80-200 ℃, the soil sampling equipment, the outer sleeve, the core taking pipe and the driving device are matched and connected, and the collected soil sample at the high temperature is sealed and stored with the ice block and the sealing device, so that the soil sample at the high temperature is effectively collected, the cross contamination in the sampling process is avoided, the detection authenticity of the soil sample is improved, and the construction time is saved.
Drawings
Fig. 1 is a schematic structural diagram of an in-situ thermal desorption soil thermal sampling device disclosed in an embodiment of the invention;
fig. 2 is a schematic block diagram of a core-pulling system according to an embodiment of the present invention.
In the drawings, the correspondence between each component and the reference numeral is:
1. the soil sampling device comprises a soil sampling device, 2 a hydraulic device, 3 an outer sleeve, 4 a core taking pipe, 41 a top driving cap, 42 a shock absorber, 43 a core sample pipe top driving head, 44 a soil coring steel pipe, 45 a soil taking pipe outer sleeve and 46 a coring bit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1 and 2, the in-situ thermal desorption soil thermal sampling device provided by the invention comprises: the device comprises a soil sampling device 1, a hydraulic device 2, a rotary power device, an outer sleeve 3 and a core taking pipe 4; the soil sampling device 1 is provided with two groups of hydraulic devices 2 which are vertically arranged, a horizontal cross beam is arranged between the two groups of hydraulic devices 2, a rotary power device is arranged on the horizontal cross beam, an outer sleeve 3 is coaxially arranged on the rotary power device, and the horizontal cross beam and the rotary power device move up and down under the driving of the hydraulic devices 2; the bottom in the outer sleeve 3 is provided with a core taking pipe 4, the core taking pipe 4 is of a hollow pipe body structure, the front end of the core taking pipe 4 is provided with a drill bit, the rear end of the core taking pipe is connected with a rotary power device, the drill bit is provided with a helical blade matched with the inner wall surface of the outer sleeve 3, and the rotary power device drives the drill bit to drill down or lift up.
In the embodiment, the outer sleeve 3 is pressed into the soil body by the soil sampling device 1 at a position above the sampling depth, the core taking pipe 4 is arranged in the outer sleeve 3 and extends into the sampling depth to take soil, then the outer sleeve 3 is pressed into the sampling depth, the core taking pipe 4 is lifted to the ground, and the soil sample in the core taking pipe 4 is the sampling soil at the sampling depth. Specifically, the drilling machine is provided with two groups of vertically arranged hydraulic oil cylinder devices, the two groups of hydraulic oil cylinder devices are connected through a horizontal beam, a rotary power device is arranged on the horizontal beam, and an outer sleeve 3 and a core taking pipe 4 positioned in the outer sleeve 3 are coaxially and detachably arranged on the rotary power device. In the process that the outer sleeve 3 is pressed into the soil body, the horizontal beam and the rotary power device on the horizontal beam descend along with the hydraulic oil cylinder device, so that downward pressure is transmitted to the outer sleeve 3 to drive the outer sleeve 3 to be pressed into the soil body downwards.
In the above embodiment, preferably, the core taking pipe 4 includes a top driving cap 41, a damper 42, a core sample pipe top driving head 43, a soil coring steel pipe 44, a soil taking pipe outer sleeve 45 and a coring bit 46, the top driving cap 41 is connected with the core sample pipe top driving head 43 through the damper 42, the core sample pipe top driving head 43 is disposed at the top end of the soil coring steel pipe 44, the soil coring steel pipe 44 is disposed in the soil taking pipe outer sleeve 45, the coring bit 46 is disposed at the outer side of the bottom end of the soil taking pipe outer sleeve 45, and the coring bit 46 has a through hole in the center thereof to communicate with the soil coring steel pipe 44.
In this embodiment, during the process of emptying the soil in the outer casing 3, the front end of the coring bit 4 is provided with the coring bit 46, the rotary power device drives the coring bit 46 on the coring bit 4 to drill downwards to the bottom end of the outer casing 3, and then the coring bit 46 is lifted in a reverse rotation manner to empty the soil in the outer casing 3. The shock absorber 42, the top drive cap 41, the core sample tube top drive head 43 and the like of the core taking tube 4 can effectively avoid the problems of loose soil and the like caused by soil vibration in the collection process.
In the above embodiment, preferably, the horizontal beam is provided with a limit bracket, the limit bracket is installed below the rotary power device, the limit bracket is provided with a guide hole matched with the outer sleeve 3, when the outer sleeve 3 needs to be lengthened, the connection between the outer sleeve 3 and the rotary power device is released, the hydraulic device 2 drives the horizontal beam to ascend, the next outer sleeve passes through the guide hole from bottom to top, the outer wall of the outer sleeve is provided with a clamping device for supporting the section of outer sleeve, the section of outer sleeve is connected with the rotary power device, and the section of outer sleeve is connected with the original outer sleeve.
In the above embodiment, the core-pulling tube 4 is preferably made of stainless steel, which can resist a high temperature of 300 ℃.
In the above embodiment, the soil sampling apparatus 1 is preferably a Geoprobe drilling rig, and preferably the soil sampling apparatus 1 has a moving assembly by which the soil sampling apparatus 1 is moved over the ground, the moving assembly preferably employing tracks.
The invention also provides a use method of the in-situ thermal desorption soil thermal sampling device provided by the embodiment, which comprises the following steps: the hydraulic device 2 is used for driving the horizontal beam and the rotary power device to descend, so that the outer sleeve 3 can drill into soil under the action of pressure; the rotary power device drives a drill bit in the coring pipe 4 at the bottom of the outer sleeve 3 to rotate and drill downwards, and then the drill bit rotates reversely and lifts up to empty soil in the outer sleeve 3; and lifting the core taking pipe 4 reaching the sampling depth out of the ground, sealing two ends of the core taking pipe 4 by using a red black cap, then loading the core taking pipe into a sample loading box, and carrying out emergency cooling treatment in the sample loading box.
In this embodiment, after the stainless steel core tube 4 is lifted out of the ground, it is necessary to seal the ends of the core tube with red and black caps and put it into a sample box prepared in advance, and preferably, ice is added to the sample box to keep the temperature in the sample box below 4 ℃ for emergency cooling.
In the above embodiment, preferably, when the preset depth is not reached after a section of the outer casing 3 is drilled into the soil body, the connection between the section of the outer casing 3 and the rotary power device is released, the hydraulic device 2 drives the horizontal beam to ascend, the next section of the outer casing 3 passes through the guide hole from bottom to top, the clamping device is used for supporting the section of the outer casing 3, the section of the outer casing 3 is connected with the rotary power device, the section of the outer casing 3 is connected with the original outer casing 3 and is continuously pressed downwards to the preset depth, and the rotary power device can be directly pressed or rotationally drilled. Wherein, the Geoprobe drilling machine is provided with a through hole for the outer sleeve 3 and the drill rod to pass through.
In the above embodiment, the main connection sequence of the thermal sampling device is Geoprobe apparatus → hydraulic device 2 → outer sleeve 3 → stainless steel coring tube 4.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an in situ thermal desorption soil thermal sampling device which characterized in that includes: the device comprises soil sampling equipment, a hydraulic device, a rotary power device, an outer sleeve and a core taking pipe;
the soil sampling equipment is provided with two groups of vertically arranged hydraulic devices, a horizontal cross beam is arranged between the two groups of hydraulic devices, the horizontal cross beam is provided with the rotary power device, the rotary power device is coaxially provided with the outer sleeve, and the horizontal cross beam and the rotary power device move up and down under the driving of the hydraulic devices;
the bottom in the outer sleeve is provided with the core taking pipe, the core taking pipe is of a hollow pipe body structure, the front end of the core taking pipe is provided with a drill bit, the rear end of the core taking pipe is connected with the rotary power device, the drill bit is provided with a helical blade matched with the inner wall surface of the outer sleeve, and the rotary power device drives the drill bit to drill down or lift up.
2. The in-situ thermal desorption soil thermal sampling device of claim 1, wherein the soil sampling apparatus has a moving assembly by which the soil sampling apparatus is moved over the ground.
3. The in-situ thermal desorption soil thermal sampling device according to claim 1, wherein the coring pipe comprises a top drive cap, a shock absorber, a core sample pipe top drive head, a soil coring steel pipe, a soil coring pipe outer sleeve and a coring bit, the top drive cap is connected with the core sample pipe top drive head through the shock absorber, the core sample pipe top drive head is arranged at the top end of the soil coring steel pipe, the soil coring steel pipe is arranged in the soil coring pipe outer sleeve, the coring bit is arranged outside the bottom end of the coring pipe outer sleeve, and the coring bit center has a through hole communicated with the soil coring steel pipe.
4. The in-situ thermal desorption soil thermal sampling device according to claim 1, wherein a limit bracket is arranged on the horizontal beam, the limit bracket is arranged below the rotary power device, a guide hole matched with the outer sleeve is arranged on the limit bracket, when the outer sleeve needs to be lengthened, the connection between the outer sleeve and the rotary power device is released, the hydraulic device drives the horizontal beam to ascend, the next section of the outer sleeve passes through the guide hole from bottom to top, a clamping device is arranged on the outer wall of the outer sleeve to support the section of the outer sleeve, the section of the outer sleeve is connected with the rotary power device, and the section of the outer sleeve is connected with the original outer sleeve.
5. The in-situ thermal desorption soil thermal sampling device of claim 1, wherein the coring pipe is made of stainless steel.
6. The in-situ thermal desorption soil thermal sampling device of claim 1, wherein the soil sampling equipment is a Geoprobe drilling machine.
7. The use method of the in-situ thermal desorption soil thermal sampling device according to claim 1, is characterized by comprising the following steps:
the horizontal beam and the rotary power device are driven to descend by the hydraulic device, so that the outer sleeve can drill into the soil under the action of pressure;
the rotary power device drives a drill bit in the coring pipe at the bottom of the outer sleeve to rotate and drill downwards, and then the drill bit rotates reversely and lifts up to empty soil in the outer sleeve;
and lifting the core taking pipe reaching the sampling depth out of the ground, sealing two ends of the core taking pipe by using a red black cap, and then loading the core taking pipe into a sample loading box, wherein the sample loading box is subjected to emergency cooling treatment.
8. The use method of the in-situ thermal desorption soil thermal sampling device according to claim 7, wherein the emergency cooling treatment of the sample loading box adopts the addition of ice blocks for cooling, so that the temperature in the sample loading box is lower than 4 ℃.
9. The use method of the in-situ thermal desorption soil thermal sampling device according to claim 7, wherein when the preset depth is not reached after the outer casing is drilled into the soil body, the connection between the outer casing and the rotary power device is released, the hydraulic device drives the horizontal beam to ascend, the next outer casing passes through the guide hole from bottom to top, the clamping device is used for supporting the outer casing, the outer casing is connected with the rotary power device, the outer casing is connected with the original outer casing, and the outer casing is continuously pressed downwards to the preset depth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077049.6A CN110763508A (en) | 2019-11-06 | 2019-11-06 | In-situ thermal desorption soil thermal sampling device and use method |
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| CN201911077049.6A CN110763508A (en) | 2019-11-06 | 2019-11-06 | In-situ thermal desorption soil thermal sampling device and use method |
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| CN110763508A true CN110763508A (en) | 2020-02-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289289A (en) * | 2020-03-20 | 2020-06-16 | 四川农业大学 | Multifunctional soil sample collecting equipment |
| CN111335836A (en) * | 2020-03-04 | 2020-06-26 | 生态环境部华南环境科学研究所 | Geological drilling coring device for improving sampling integrity and sampling method thereof |
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| GB1304701A (en) * | 1969-02-07 | 1973-01-31 | ||
| CN106680023A (en) * | 2016-12-23 | 2017-05-17 | 上海岩土工程勘察设计研究院有限公司 | Pollution-isolating soil-sampling method |
| CN108181127A (en) * | 2017-12-27 | 2018-06-19 | 江苏盖亚环境科技股份有限公司 | A kind of continuous closed unperturbed Sampling driller of the integrated drilling machine of soil remediation sampling |
| CN108627363A (en) * | 2018-07-10 | 2018-10-09 | 南京贻润环境科技有限公司 | A kind of spiral and directly push away the undisturbed soil sampling tool and method that drilling combines |
| CN108731969A (en) * | 2018-04-28 | 2018-11-02 | 浙江水利水电学院 | A kind of soil sampling apparatus |
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2019
- 2019-11-06 CN CN201911077049.6A patent/CN110763508A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1304701A (en) * | 1969-02-07 | 1973-01-31 | ||
| CN106680023A (en) * | 2016-12-23 | 2017-05-17 | 上海岩土工程勘察设计研究院有限公司 | Pollution-isolating soil-sampling method |
| CN108181127A (en) * | 2017-12-27 | 2018-06-19 | 江苏盖亚环境科技股份有限公司 | A kind of continuous closed unperturbed Sampling driller of the integrated drilling machine of soil remediation sampling |
| CN108731969A (en) * | 2018-04-28 | 2018-11-02 | 浙江水利水电学院 | A kind of soil sampling apparatus |
| CN108627363A (en) * | 2018-07-10 | 2018-10-09 | 南京贻润环境科技有限公司 | A kind of spiral and directly push away the undisturbed soil sampling tool and method that drilling combines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335836A (en) * | 2020-03-04 | 2020-06-26 | 生态环境部华南环境科学研究所 | Geological drilling coring device for improving sampling integrity and sampling method thereof |
| CN111289289A (en) * | 2020-03-20 | 2020-06-16 | 四川农业大学 | Multifunctional soil sample collecting equipment |
| CN111289289B (en) * | 2020-03-20 | 2022-11-15 | 四川农业大学 | Multifunctional soil sample collecting equipment |
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