CN110426235B - Soil sampler for soil remediation - Google Patents
Soil sampler for soil remediation Download PDFInfo
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- CN110426235B CN110426235B CN201910653839.8A CN201910653839A CN110426235B CN 110426235 B CN110426235 B CN 110426235B CN 201910653839 A CN201910653839 A CN 201910653839A CN 110426235 B CN110426235 B CN 110426235B
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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
Abstract
The invention discloses a soil sampler for soil remediation, which belongs to the technical field of soil sampling, and comprises: the support body, lifting unit, include the worm that sets up on the support body perpendicularly with the horizontal plane, install on the support body with the first sleeve of worm complex and be used for driving the turbine that the worm reciprocated, sampling unit, set up perpendicularly with the horizontal plane, sampling unit is rotary motion and oscilaltion by the lifting unit drive to the soil body sample, sampling unit includes the sample drum, the inside hollow sample chamber of column of establishing of sample drum, sample intracavity wall is encircleed and is laid memory alloy silk, memory alloy silk is the central axis that linear and be on a parallel with the sample drum, memory alloy silk is heated and can be deformed and be the cockscomb structure. According to the invention, the sampling of the soil is mechanically controlled, the sampling efficiency is effectively improved, the obtained soil sample is close to an original soil sample with a natural structure, and the soil sample is effectively prevented from being separated in the soil sample extraction process.
Description
Technical Field
The invention belongs to the technical field of soil area sampling, and particularly relates to a soil sampler for soil remediation.
Background
Soil petroleum pollution not only destroys soil, but also pollutes water and air, and pollutants can harm human health through various ways. The petroleum polluted site is taken as a very serious environmental problem at present, the boundary of the soil pollutant of the site and the polluted earthwork amount are accurately defined, the important role is played in subsequent work such as risk assessment, restoration treatment and the like, and soil sampling is generally needed to be detected in the process of accurately defining the boundary of the soil pollutant of the site and the polluted earthwork amount.
At present, when sampling soil, generally adopt manual sampling, this kind of sampling mode has following shortcoming: the sampling efficiency is low, and the damage to the original structure of the soil sample is large in the sampling process; because soil is polluted by petroleum, soil mobility is stronger than that of common soil, when a soil sample is extracted after sampling is completed, the situation that the soil sample is separated due to insufficient friction force between the soil and a sampler can occur, and a manual sampling mode is not suitable for soil sampling work in a petroleum polluted area.
Disclosure of Invention
The invention aims to provide a soil sampler for soil remediation, which effectively improves the sampling efficiency by mechanically controlling the soil sampling process, obtains a soil sample close to an original soil sample with a natural structure, and prevents the soil sample from being separated in the soil sample extraction process.
The technical scheme adopted by the invention for realizing the purpose is as follows: soil sampler for soil remediation includes:
a frame body is arranged on the frame body,
the lifting component comprises a worm which is vertically arranged on the frame body with the horizontal plane, a first sleeve which is matched with the worm and a turbine which is used for driving the worm to move up and down are arranged on the frame body,
the sampling component is arranged vertical to the horizontal plane, the sampling component is driven by the lifting component to do rotary motion and lift up and down to sample the soil body,
the sampling assembly comprises a sampling cylinder, a cylindrical hollow sampling cavity is arranged in the sampling cylinder, a memory alloy wire is arranged on the inner wall of the sampling cavity in a surrounding mode, the memory alloy wire is linear and parallel to the central axis of the sampling cylinder, and the memory alloy wire can be deformed to be in a sawtooth shape when being heated. The inner wall of the first sleeve is provided with a thread matched with the worm. The turbine is driven by a motor mounted on the frame.
The worm is driven to move up and down on the frame body by the worm wheel, the first sleeve corresponding to the tooth form of the worm is arranged on the frame body to realize the up-and-down movement of the worm on the frame body, and the lifting and rotating movement of the sampling assembly is realized by the connection of the worm capable of moving up and down and the sampling assembly The memory alloy wire is made by adopting a thermoelastic martensite phase change principle, the memory alloy wire with the initial shape can generate deformation when being heated to a temperature above a phase change point, and the initial shape is recovered after the memory alloy wire is cooled.
Specifically, the bottom end of the worm is connected with a coaxial assembly body, and the end part of the sampling cylinder is provided with an assembly groove hole inserted with the assembly body. The outer wall of the sampling cylinder is spirally and circularly provided with spiral wings. The sampling cylinder is connected with the worm through the assembly body as a connecting piece, the rotating force of the worm is transmitted to the sampling cylinder through the assembly body to realize the rotation of the sampling cylinder, a cutter body at the bottom of the sampling cylinder is driven to rotate to drill a soil body, the spiral wing is arranged on the outer wall of the sampling cylinder in a spiral surrounding mode, so that the sampling cylinder can guide the soil body on the outer wall of the sampling cylinder to move upwards and loosen the soil body in the downward tunneling process by utilizing the spiral wing, the influence of the external pressure of the sampling cylinder on the soil sample in the sampling cylinder is reduced, the lifting of the sampling cylinder is driven by utilizing the cooperation of the worm and the worm to lift, the drilling depth of the sampling cylinder is controlled, and the data can be conveniently acquired to accurately define the boundary of soil pollutants in the field and the polluted soil volume.
Specifically, the middle of the worm is communicated, the upper end of the worm is connected with an electric heater, the electric heater is connected with the assembly body through a heat conducting wire arranged in a through hole of the worm, and the memory alloy wire extends to the groove wall of the assembly groove hole. The assembly groove hole is a tooth-shaped groove hole and is provided with a tooth socket, and the memory alloy wire extends into the tooth socket. The deformation quantity generated by the memory alloy wire can be controlled by a heating mode, in the process of drawing-off after sampling is finished, in order to avoid the situation that the soil sample obtained by sampling is separated from the assembly body to inaccurate data due to the fluidity and the stable friction with the inner wall of the sampling cylinder in the process of drawing-off, before the drawing-off, heat is conducted to the assembly body through the heat conducting wire by the electric adder, the memory alloy wire is arranged to extend to the groove wall of the assembly groove hole so as to be in contact with the assembly body in a heating state for conducting heat, the memory alloy wire deformation quantity is increased to reinforce the soil sample in the sampling cylinder and reduce the soil particle flow quantity, the original state soil sample close to a natural structure is ensured to be obtained, the connection tightness between the assembly body and the sampling cylinder can be effectively improved by heating the assembly body, the sampling cylinder is prevented from loosening in the rotating or lifting process, the assembly groove hole is arranged as a tooth-shaped groove hole, the tooth socket is arranged, the worm is rotated to drive the assembly body to rotate by means of tooth-shaped matching, and the sampling cylinder is driven to rotate by means of tooth-shaped tooth surfaces, so that force transmission is achieved.
It is specific, the cross-section of assembly body and assembly slotted hole is the profile of tooth that the shape corresponds, the transmission of the power of being convenient for, realize that the assembly body transmits the revolving force of worm for the sample drum, still be equipped with the assembly cover that is used for filling clearance between assembly body and the assembly slotted hole, it is not hard up to prevent to take a sample in-process sample drum from producing, the increase of circle run-out tolerance value when the sample drum is rotatory leads to its inside soil sample structure to produce the destruction, the assembly is supporting with the assembly body and is the metal, and be heat conduction metal, for example, copper, iron, etc., the heat conduction of being convenient for improves the deformation volume and the thermal deformation speed of memory alloy silk.
Specifically, the bottom of the sampling cylinder is connected with a coaxial drill bushing, the diameter of an inner hole of the drill bushing is the same as that of an inner hole of the sampling cavity, a guide strip which is spirally arranged is arranged on the side surface of the drill bushing, and a cutter body which is arranged around the axis of the drill bushing is arranged on the bottom surface of the drill bushing. The soil sample drilling device is characterized in that a drilling mode is utilized to enable a sampling cylinder to drill a required soil sample towards the bottom of a soil layer, the edges of selected cutter bodies are flat and deformed or V-shaped, the structural integrity of the soil sample obtained by drilling is guaranteed by utilizing the characteristic that the edges of the two shapes are high in stability in the drilling process, three cutting cutters are selected and distributed at intervals of 120 degrees and used for guaranteeing cutting load and avoiding influence on drilling efficiency due to the fact that the heat of the cutters is increased, the cutter bodies are enabled to move upwards along the direction of the guide strips in the soil body drilling process by arranging the guide strips on the side faces of a drill sleeve, and the situation that the drilling work stops due to the fact that soil scraps generated in the drilling process are adhered to the cutter bodies is avoided.
Specifically, the sampling cylinder is sleeved with a second sleeve, and the second sleeve is connected with the frame body through a supporting component. The second sleeve has with sample drum outer wall spiral wing complex screw thread, utilize the second sleeve to be connected with sample sleeve's cooperation and make sample sleeve reduce at the circle value of beating that rotatory in-process produced, guarantee the soil sample integrality of its inside acquisition, compare in present common use luoyang shovel or other soil sample boring tools, the circle value of beating that produces when effectively solving boring tool length too big is too big, the boring tool produces the problem that the increase of the amount of shaking suffered destruction to the soil sample integrality of boring.
Specifically, the supporting component comprises a moving rod connected with the side wall of the second sleeve and a fixing rod connected with the frame body, the moving rod is connected with the fixing rod in an inserting mode, a limiting ring is arranged at the bottom end of the moving rod, a limiting through groove for limiting the moving distance of the limiting ring is formed in the fixing rod, and the fixing rod is further provided with a sliding through groove for achieving the moving of the moving rod in the fixing rod. Connect the carriage release lever and the dead lever through the mode of pegging graft and make the carriage release lever can have certain displacement range, it shakes and reduces the expansion of circle beating value to inhaling when the too big production of sample drum circle beating value shakes, simultaneously make it be fixed in the certain limit and keep with the sample drum with the axle center for guaranteeing the telescopic support of second of supporting component, realize through setting for spacing ring and the mode that spacing logical groove, the setting up of the logical groove that slides is convenient for realize the removal between the relative dead lever of carriage release lever, also be convenient for fluid flow inside it absorbs the vibration energy that second sleeve orientation transmitted.
Specifically, the movable rod is hollow inside, the side face of the movable rod is connected with a sealing ring used for filling the gap between the side face of the movable rod and the sliding through groove, the sealing ring is arranged in the movable rod from the limiting ring part to the hollow part, flowing liquid is placed in the movable rod, and a first through hole is formed in the side face of the movable rod of the hollow part. The spiral wing, namely the spiral on the outer wall of the sampling cylinder surrounds the rectangular thread on the outer wall of the sampling cylinder. The mobile liquid that the hollow portion of carriage release lever was placed is the oil fluid, when the rotatory circle of sample drum runout value enlarged, supporting component supported the sample drum through the second sleeve and made the inside fluid of carriage release lever flow at spacing logical groove and the logical inslot that slides through the removal between the relative dead lever of carriage release lever, utilize the vibration energy that mobile oil consumed the shake of sample drum and transmitted supporting component, reduce the vibration reaction of structure, the realization is with the round runout value control that the rotatory in-process of sample drum produced in the certain extent, guarantee the inside soil sample structural integrity of sample drum.
The bottom plate that the level was placed is connected with to support body side bottom, and the bottom plate bottom surface has the arch of spine form, and the bottom plate surface is equipped with the spirit level for the soil sample of the certain degree of depth on the realization acquisition ground vertical direction still further fixes the support body through the arch of bottom plate ground spine form, improves the stability of support body when boring the soil sample.
Specifically, the frame body is provided with a scale parallel to the worm, the drilling depth can be obtained by observing the moving numerical value of the electric heater relative to the scale, and the data can be conveniently obtained to accurately define the boundary of the soil pollutant in the field and the polluted earth volume.
Compared with the prior art, the invention has the beneficial effects that: the worm is driven by the worm wheel to move up and down on the frame body, the first sleeve corresponding to the tooth form of the worm is arranged on the frame body to realize the up-and-down movement of the worm on the frame body, and the up-and-down movement and the rotating movement of the sampling assembly are realized by connecting the worm capable of moving up and down and the sampling assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a soil sampler for soil remediation according to the present invention;
FIG. 2 is a schematic view of a sampling assembly;
FIG. 3 is a schematic view of a drill bushing configuration;
FIG. 4 is a schematic disassembled view of the electric heater, worm, fitting body, fitting sleeve and sampling cylinder after assembly;
FIG. 5 is a schematic diagram showing the electric heater, worm, assembly body, and assembly kit assembled together;
FIG. 6 is a schematic view of the construction of the mounting sleeve;
FIG. 7 is a schematic view of the interior of a sampling cylinder;
FIG. 8 is a schematic view of a memory alloy wire in a sampling cylinder after being deformed by heat;
FIG. 9 is a schematic view of the initial state of a memory alloy wire;
FIG. 10 is a schematic view of a memory alloy wire in a thermally deformed state;
FIG. 11 is a schematic view of a support assembly;
FIG. 12 is a table showing the change in the circular runout value of the sampling cylinder in the soil sampling test conducted in example 2.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1 to 11, a soil sampler for soil remediation includes:
the number of the frame bodies 10 is increased,
the lifting assembly comprises a worm 30 vertically arranged on the frame body 10 with respect to the horizontal plane, a first sleeve 33 matched with the worm 30 and a turbine 31 for driving the worm 30 to move up and down are arranged on the frame body 10,
a sampling component 50 which is arranged vertically to the horizontal plane, the sampling component 50 is driven by a lifting component to do rotary motion and lift up and down to sample the soil body,
wherein, the sampling component 50 includes a sampling cylinder 52, a cylindrical hollow sampling cavity 57 is arranged in the sampling cylinder 52, a memory alloy wire 62 is arranged around the inner wall of the sampling cavity 57, the memory alloy wire 62 is linear and parallel to the central axis of the sampling cylinder 52, and the memory alloy wire 62 is heated and deformed to be saw-toothed. The inner wall of the first sleeve 31 has a thread that cooperates with the worm shaft 30. The worm gear 31 is driven by a motor 32 mounted on the frame body 10.
The worm 30 is driven by the worm wheel 31 to move up and down on the frame body 10, the first sleeve 33 corresponding to the tooth form of the worm 30 is arranged on the frame body 10 to realize the up-and-down movement of the worm 30 on the frame body 10, and the lifting and rotating movement of the sampling assembly 50 are realized by the connection of the worm 30 capable of moving up and down and rotating with the sampling assembly 50, the method replaces the manual downward pressure or other manual methods to sample the soil body, compared with the condition that the pressure change around the soil sample is large due to uneven force application during manual sampling, and the damage to the original structure of the soil sample is inevitably increased, the invention utilizes the worm 30 to drive the sampling assembly 50 to lift up and down in the rotating state to sample the soil body, so that the force and the speed of drilling the soil body downwards are uniform, the peripheral pressure change in the soil is uniform during sampling, the soil sample is prevented from being disturbed and damaged, and an original soil sample close to a natural structure is obtained, and further through the mode that sets up memory alloy silk 62 in the cavity 57 inner wall of sampling cylinder 52 in order to increase the frictional force of soil sample and the sampling cylinder 52 inner chamber in sampling cylinder 52 and reduce soil sample mobility, memory alloy silk 62 and the soil sample in the sampling cylinder 52 have certain frictional contact can lead to memory alloy silk 62 to produce the deformation and take the form of the zigzag to fill the crack between each soil layer of the soil sample obtained in the sample, and reduce soil granule mobility, and memory alloy silk 62 adopts the hot elasticity martensite phase transition principle to make, memory alloy silk 62 with initial shape heats to above the phase transition point, can produce the deformation, resume initial shape after it cools down.
The worm 30 is connected with a coaxial assembly body 22 at the bottom end, and the sampling cylinder 52 is provided with an assembly groove hole 60 at the end part for plugging with the assembly body 22. The sampling cylinder 52 is provided with spiral wings 53 spirally surrounding the outer wall. The assembly body 22 serves as a connecting piece to realize connection between the sampling cylinder 52 and the worm 30, so that the rotating force of the worm 30 is transmitted to the sampling cylinder 52 through the assembly body 22 to realize rotation of the sampling cylinder 52, the cutter body 56 at the bottom of the sampling cylinder 52 is driven to rotate to drill soil, the spiral wings 53 are spirally and circularly arranged on the outer wall of the sampling cylinder 52, so that the soil on the outer wall of the sampling cylinder 52 is guided to move upwards and loosen by the spiral wings 53 in the downward tunneling process of the sampling cylinder 52, the influence of the external pressure of the sampling cylinder 52 on the soil sample in the sampling cylinder 52 is reduced, the lifting of the sampling cylinder 52 is driven by the lifting of the worm 30 in a worm gear worm matching manner, the drilling depth of the sampling cylinder 52 is controlled, and data are acquired to accurately define the boundary of soil pollutants and the polluted soil volume of the sampling cylinder 52.
The middle of the worm 30 is through, the upper end of the worm 30 is connected with the electric heater 20, the electric heater 20 is connected with the assembly body 22 through the heat conducting wire 21 arranged in the through hole of the worm 30, and the memory alloy wire 62 extends to the groove wall of the assembly groove hole 60. The assembly slot 60 is a toothed slot having a spline 61 and a memory alloy wire 62 extending into the spline 61. The deformation quantity generated by the memory alloy wire 62 can be controlled by a heating mode, in the process of drawing-off after sampling is finished, in order to avoid the situation that the soil sample obtained by sampling should have fluidity and stable friction with the inner wall of the sampling cylinder 52 so that the soil sample is separated to inaccurate data, before drawing-off, the heat is conducted to the assembly body 22 through the heat conducting wire 21 by the electric adder 20, the memory alloy wire 62 is arranged to extend to the groove wall of the assembly groove hole 60 so as to be in contact with the assembly body 22 in a heating state for conducting the heat, the deformation quantity of the memory alloy wire 62 is increased to reinforce the soil sample in the sampling cylinder 52 and reduce the soil particle flow quantity, the original soil sample close to a natural structure is ensured to be obtained, the connection tightness between the assembly body 22 and the sampling cylinder 52 can be effectively improved by heating the assembly body 22, and the sampling cylinder 52 is prevented from loosening in the rotating or lifting process, by arranging the assembly slot 60 as a tooth-shaped slot with a tooth socket 61, the worm 30 rotates to drive the assembly body 22 to rotate in a tooth-shaped matching mode, and the sampling cylinder 52 is driven to rotate by a tooth-shaped tooth surface, so that force transmission is realized.
The cross sections of the assembly body 22 and the assembly groove hole 60 are both in tooth shapes corresponding to each other in shape, so that force transmission is facilitated, the effect that the assembly body 22 transmits the rotating force of the worm 30 to the sampling cylinder 52 is achieved, an assembly sleeve 70 used for filling a gap between the assembly body 22 and the assembly groove hole 60 is further arranged between the assembly body 22 and the assembly groove hole 60, the sampling cylinder 52 is prevented from loosening in the sampling process, the increase of the circular run-out value when the sampling cylinder 52 rotates causes damage to the soil sample structure inside the sampling cylinder, the assembly sleeve 70 and the assembly body 22 are both made of metal and made of heat-conducting metal, such as copper, iron and the like, and heat conduction is facilitated, so that the.
The bottom of the sampling cylinder 52 is connected with a coaxial drill bushing 54, the diameter of the inner hole of the drill bushing 54 is the same as that of the inner hole of the sampling cavity 57, the side surface of the drill bushing 54 is provided with a guide strip 55 which is spirally arranged, and the bottom surface of the drill bushing 54 is provided with a cutter body 56 which is arranged around the axis of the drill bushing 54. The required soil sample is drilled from the sampling cylinder 52 to the bottom of the soil layer by using a drilling mode, the knife edges of the selected knife bodies 56 are in a flat deformation shape or a V shape, the structural integrity of the soil sample obtained by drilling is ensured by using the characteristic that the knife edges in the two shapes have high stability in the drilling process, the knife bodies 56 are three cutting tools distributed at intervals of 120 degrees and used for ensuring cutting load and avoiding the influence of the heat rise of the tools on the drilling efficiency, the guide strips 55 are arranged on the side surfaces of the drill sleeves 54, so that the generated soil chips are moved upwards along the direction of the guide strips 55 in the soil body drilling process by the knife bodies 56, and the drilling work stop caused by the adhesion of the soil chips generated in the drilling process on the knife bodies 56 is avoided.
The sampling cylinder 52 is sleeved with a second sleeve 51, and the second sleeve 51 is connected with the frame body 10 through the supporting assembly 40. Second sleeve 51 has the screw thread with sample cylinder 52 outer wall spiral wing 53 complex, utilizes second sleeve 51 and sample sleeve 52's cooperation to be connected the circle value of beating that makes sample sleeve 52 produce at rotatory in-process and reduces, guarantees the soil sample integrality of its inside acquisition, compares in present commonly used luoyang shovel or other soil sample drilling tools, and the circle value of beating that produces when effectively solving drilling tool length too big is too big, and the drilling tool produces the shake quantity and increases to the soil sample integrality of drilling and suffers the problem of destruction.
The supporting assembly 40 comprises a moving rod 42 connected with the side wall of the second sleeve 51 and a fixing rod 47 connected with the frame body 10, the moving rod 42 is inserted into the fixing rod 47, a limiting ring 44 is arranged at the bottom end of the moving rod 42, a limiting through groove 46 for limiting the moving distance of the limiting ring 44 is arranged inside the fixing rod 47, and the fixing rod 47 further comprises a sliding through groove 45 for realizing the moving of the moving rod 42 in the fixing rod 47. The movable rod 42 and the fixed rod 47 are connected in an inserting mode to enable the movable rod to have a certain moving range, the movable rod is used for absorbing vibration when the circular runout value of the sampling cylinder 52 is too large and shakes and reducing expansion of the circular runout value, meanwhile, the second sleeve 51 is fixed in a certain range and keeps coaxial with the sampling cylinder 52 in order to ensure that the second sleeve 51 is supported by the supporting assembly 40, the limiting ring 44 and the limiting through groove 46 are set, the sliding through groove 45 is arranged to facilitate movement of the movable rod 42 relative to the fixed rod 47, and fluid flows in the sliding through groove to absorb vibration energy transmitted in the direction of the second sleeve 51.
The moving rod 47 is hollow, the side surface of the moving rod 47 is connected with a sealing ring 41 for filling a gap between the side surface of the moving rod and the sliding through groove 45, the moving rod 42 from the sealing ring 41 to the limiting ring 44 is hollow and is filled with flowing liquid, and the side surface of the moving rod 42 of the hollow part is provided with a first through hole 43. The helical wings 53 on the outer wall of the sampling cylinder 52 spirally surround the rectangular thread on the outer wall of the sampling cylinder 52. The flowing liquid placed in the hollow part of the moving rod 47 is oil fluid, when the rotating circular runout value of the sampling cylinder 52 is enlarged, the supporting assembly 40 supports the sampling cylinder 52 through the second sleeve 51 and enables the fluid in the moving rod 47 to flow in the limiting through groove 46 and the sliding through groove 45 through the movement between the moving rod 42 and the fixed rod 47, the vibration energy transmitted to the supporting assembly 40 by the shaking of the sampling cylinder 52 is consumed by the flowing oil, the vibration reaction of the structure is reduced, the circular runout value generated in the rotating process of the sampling cylinder 52 is controlled within a certain range, and the structural integrity of the soil sample in the sampling cylinder 52 is ensured.
The bottom of support body 10 side is connected with the bottom plate 11 that the level was placed, and 11 bottom surfaces of bottom plate have the arch of spine form, and 11 surfaces of bottom plate are equipped with spirit level 12 for the soil sample of certain degree of depth on the ground vertical direction is acquireed in the realization, still further fixes support body 10 through 11 ground spine form archs of bottom plate, improves the stability of support body 10 when boring soil sample.
The frame body 10 is provided with the scale 13 parallel to the worm 30, and the drilling depth can be obtained by observing the moving value of the electric heater 20 relative to the scale, so that the data can be conveniently obtained to accurately define the boundary of the soil pollutant in the field and the polluted earthwork amount.
Example 2:
when the soil sampling device for soil remediation is actually used: installing a frame body 10 on the surface of a soil body in a drilling area, adjusting the frame body 10 according to a level gauge 12, recording the height position of an electric heater 20 relative to a scale 13 before drilling a soil sample, driving a turbine 31 to rotate by starting a motor 32 so as to drive a worm 30 to rotate and move downwards, driving an assembly body 22 to rotate by the worm 30 in the rotation process, transmitting a rotating force to a sampling cylinder 52 by the assembly body 22 through a tooth surface and enabling the sampling cylinder to rotate, arranging a drill bush 54 at the bottom of the sampling cylinder 52, drilling the soil sample in a rotating mode, reducing the shaking of the sampling cylinder 52 by a second cylinder 51-level supporting component 40 in the drilling process so as to ensure the integrity of the obtained soil sample, transmitting heat to the assembly body 22 through a heat conducting wire 21 by an electric adder 20 before the drilling soil sample is taken out, arranging a memory alloy wire 62 to extend to the groove wall of an assembly groove hole 60 so as to enable the memory alloy wire to be in contact with the assembly body 22 in a heating state to transmit heat, increasing the deformation of the memory alloy wire 62 strengthens the soil sample in the sampling cylinder 52 and reduces the flow of soil particles, ensuring that an undisturbed soil sample close to the natural structure is obtained.
Soil sample sampling test:
through laying soil layer simulation sample soil layer, specifically do: lay in transparent container and be convenient for survey soil sample original structure and be used for the comparison test, the sample soil layer is laid by four layers of soil layer and is gone out, and the soil layer is first soil layer D, second soil layer C, third soil layer B, fourth soil layer A respectively by supreme down. The thickness ratio of a first soil layer D to a second soil layer C to a third soil layer B to a fourth soil layer A is 10:40:15:1.5, the first soil layer D is filled with 10cm of loess with the particle size of less than 0.5mm and less than 1mm after being mixed according to the mass ratio of 1:1, the second soil layer B is filled with 40cm of sandy soil with the particle size of less than 0.5mm and sludge after being mixed according to the mass ratio of 3:1, and the third soil layer C is filled with 15cm of sandy soil with the particle size of less than 0.5 mm; the fourth soil layer is filled with 1.5cm of loess with the particle size of less than 0.5mm and silt after being mixed according to the mass ratio of 2.65: 1. And after the soil layer is laid, pouring petroleum on the surface layer of the soil body to simulate petroleum leakage.
Respectively setting an experimental group 1, an experimental group 2 and a control group to drill soil samples,
experimental group 1 the soil sampler for soil remediation of example 1 was selected for sampling.
Example 2 the soil sampling device for soil remediation of example 1 was selected for sampling, and unlike experimental group 1, the second sleeve 51 and the support member 40 were removed from the sampler of experimental group 2.
The control group was sampled with the soil sampler for soil remediation of example 1. Unlike experimental group 1, the second sleeve 51, the support member 40, and the memory alloy wire 62 were removed from the sampler of the control group.
Through carrying out the analysis comparison to the soil sample after the sample, the soil sample integrality that experiment group 1 bored is higher, be close to the original state soil sample of natural structure, take out the in-process and not appear the soil sample circumstances of dropping, the soil sample primary structure that experiment group 2 bored changes a small amount and taking out the in-process and appearing the circumstances that a small amount of soil samples dropped, the soil sample primary structure that contrast group bored is destroyed and has more soil sample to drop when taking out, known through the test that the soil sample integrality that the sampler of experiment group 1 obtained is higher than experiment group 2 and contrast group, and take out the in-process and can not appear the soil sample circumstances of dropping.
In order to further test the reason that the quality of the soil samples drilled by the experimental group 2 and the comparison group is poor, the circle run-out tolerance value of the sampling cylinders 52 in the samplers of the experimental group 2 and the comparison group is obtained, as shown in fig. 12, it can be seen that the circle run-out tolerance value of the sampler of the comparison group is continuously increased along with the increase of the drilling depth, the shaking amount of the sampling cylinders 52 is increased, the integrity of the soil samples obtained by the comparison group is lower than that of the experimental groups 1 and 2, and the condition that a large amount of soil samples fall off in the process of completing the extraction of the soil samples is caused.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (6)
1. Soil sampler for soil remediation includes:
a frame body is arranged on the frame body,
the lifting assembly comprises a worm vertically arranged on the frame body, the frame body is provided with a first sleeve matched with the worm and a turbine used for driving the worm to move up and down,
the sampling component is arranged vertical to the horizontal plane, the sampling component is driven by the lifting component to do rotary motion and lift up and down to sample the soil body,
the sampling assembly comprises a sampling cylinder, a columnar hollow sampling cavity is arranged in the sampling cylinder, memory alloy wires are distributed on the inner wall of the sampling cavity in a surrounding mode, the memory alloy wires are linear and parallel to the central axis of the sampling cylinder, and the memory alloy wires can be deformed to be in a sawtooth shape when being heated;
the bottom end of the worm is connected with a coaxial assembly body, and the end part of the sampling cylinder is provided with an assembly groove hole inserted with the assembly body;
the middle part of the worm is communicated, the upper end of the worm is connected with an electric heater, the electric heater is connected with the assembly body through a heat conduction wire arranged in a through hole of the worm, and the memory alloy wire extends to the groove wall of the assembly groove hole;
the sections of the assembly body and the assembly slotted hole are in tooth shapes corresponding to the shapes of the assembly body and the assembly slotted hole, and an assembly sleeve for filling a gap between the assembly body and the assembly slotted hole is arranged between the assembly body and the assembly slotted hole;
the bottom of the sampling cylinder is connected with a coaxial drill bushing, the diameter of an inner hole of the drill bushing is the same as that of an inner hole of the sampling cavity, a guide strip which is spirally arranged is arranged on the side surface of the drill bushing, and a cutter body which surrounds the axis of the drill bushing is arranged on the bottom surface of the drill bushing.
2. The soil sampler for soil remediation of claim 1, wherein: the sampling cylinder is sleeved with a second sleeve, and the second sleeve is connected with the frame body through a supporting component.
3. The soil sampler for soil remediation of claim 2, wherein: the supporting component comprises a moving rod connected with the side wall of the second sleeve and a fixing rod connected with the frame body, the moving rod is connected with the fixing rod in an inserting mode, a limiting ring is arranged at the bottom end of the moving rod, a limiting through groove for limiting the moving distance of the limiting ring is formed in the fixing rod, and the fixing rod is further provided with a sliding through groove for achieving the moving of the moving rod in the fixing rod.
4. A soil sampler for soil remediation according to claim 3 wherein: the movable rod is hollow inside, the side face of the movable rod is connected with a sealing ring used for filling the gap between the side face of the movable rod and the sliding through groove, the movable rod is hollow from the sealing ring to the limiting ring part and filled with flowing liquid, and a first through hole is formed in the side face of the movable rod of the hollow part.
5. The soil sampler for soil remediation according to any one of claims 1 to 4, wherein: the bottom of the side of the frame body is connected with a bottom plate which is horizontally placed, the bottom surface of the bottom plate is provided with a spine-shaped bulge, and the surface of the bottom plate is provided with a level gauge.
6. The soil sampler for soil remediation according to any one of claims 1 to 4, wherein: and a scale parallel to the worm is arranged on the frame body.
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| CN110887694A (en) * | 2019-12-12 | 2020-03-17 | 新昌县羽林街道巨晖机械厂 | Deep soil sampler for soil property detection |
| CN111238862B (en) * | 2020-01-11 | 2022-12-02 | 广东顺水工程建设监理有限公司 | Soil sampling and measuring device for engineering supervision |
| CN111157282B (en) * | 2020-03-05 | 2022-06-07 | 江西竹海农业发展有限公司 | Bamboo shoots are planted and are used soil sampling device |
| CN111649978B (en) * | 2020-06-05 | 2022-04-29 | 吉林大学 | Soil sampler based on shape memory alloy drive |
| CN112179703B (en) * | 2020-10-14 | 2022-09-09 | 张秋吉 | Sampling device for soil remediation |
| CN112255014B (en) * | 2020-11-19 | 2024-01-30 | 武汉轻工大学 | Acquisition drill bit and acquisition device |
| CN112665905B (en) * | 2021-01-15 | 2023-08-04 | 包头市水质检测技术有限责任公司 | Frozen soil sampler for ecological environment detection |
| CN113237690B (en) * | 2021-02-02 | 2022-12-20 | 南通市建设工程质量检测站有限公司 | Witness sampling device and sampling method for building engineering materials |
| CN113933096B (en) * | 2021-10-14 | 2023-06-27 | 中交三公局第一工程有限公司 | Sampling collection equipment for lake sediment detection |
| CN114354254B (en) * | 2022-01-20 | 2023-05-09 | 徐仰玲 | Geological survey soil sampling device |
| CN116223108B (en) * | 2023-05-10 | 2023-07-21 | 河南省新乡生态环境监测中心 | Deep sampling analysis equipment of environmental monitoring |
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