CN215785669U - Soil and groundwater remediation normal position injection apparatus - Google Patents
Soil and groundwater remediation normal position injection apparatus Download PDFInfo
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- CN215785669U CN215785669U CN202122137436.3U CN202122137436U CN215785669U CN 215785669 U CN215785669 U CN 215785669U CN 202122137436 U CN202122137436 U CN 202122137436U CN 215785669 U CN215785669 U CN 215785669U
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Abstract
The utility model discloses in-situ injection equipment for soil and underground water remediation, which comprises a frame, a medicine tank arranged at the upper part of the frame, a motor fixedly connected to the frame, a transmission device fixedly connected to an output shaft of the motor, a drill rod group fixedly connected to the transmission device, a communication pipeline for communicating an outlet of the medicine tank with an inlet of the drill rod group, a telescopic rod arranged at the lower end of the frame and a crawler walking part arranged at the lower end of the telescopic rod, wherein the medicine tank is arranged on the upper part of the frame; the transmission device comprises a driving gear and a driven gear; the driven gear is sleeved on the rotating shaft and is rotationally connected with the rotating shaft; the drill rod group comprises a plurality of drill rods; each driven gear is fixedly connected with a drill rod. This application need not on-the-spot workman and excavates the injection well, sets for three drilling rod and carries out the medicine at the height of difference and spray, has increased the efficiency that the drilling injected into the oxidation medicament, has shortened the activity duration, has practiced thrift the cost.
Description
Technical Field
The utility model relates to the field of drilling equipment for soil and underground water remediation, in particular to in-situ injection equipment for soil and underground water remediation.
Background
The heavy metal pollution of the soil refers to the phenomenon that the content of heavy metals entering the soil through artificial activities is obviously higher than the natural background value of the heavy metals, and further the quality of the ecological environment is deteriorated. At present, with the development of social economy, heavy metal pollutants enter the soil environment through various channels, such as industries of electroplating, steel manufacturing, chemical processing and the like, so that the heavy metal pollution of the soil is more and more serious, and the human health and the ecosystem are threatened.
In-situ implantation equipment is used in-situ remediation technologies and generally consists of a drug, a drug supply system, an implantation system, a drug implantation system, and the like. The existing in-situ injection equipment mainly adopts direct-push type monomer equipment assembly, needs repeated work in the repair process, has low integrated automation degree, and causes the increase of operation cost and low repair efficiency. The types of common oxidants include potassium permanganate, hydrogen peroxide, ozone, sodium persulfate, Fenton reagent and the like, and the adaptability and selectivity of different chemical oxidants to different polluted sites are slightly different. According to pollution factors contained in soil and underground water in the organic pollution site, optimal remediation agents for the organic pollution soil and the underground water in different sites are selected by comparing the oxidation performance of different chemical oxidants. The oxidant may be a gas and a liquid or a mixture of gas and liquid to design an efficient in situ treatment system.
The prior art adopts the in-situ injection repair technology that: three injection modes of injection well injection, direct push type injection and high pressure jet grouting injection.
The direct-push type generally excavates a target area of an injection pipeline along with the drilling process of an injection machine, and injection medium diffusion holes are arranged in a layering mode in the vertical direction according to the pollution depth. The injected medicament enters the underground water through the diffusion holes under the pressure action of the injection pump, forms a thin medicament layer in the horizontal direction, and longitudinally and simultaneously permeates, diffuses and migrates to cover the whole polluted area. The biggest disadvantage of this method is that it is not suitable for areas where there are more rocks in the ground or where the piping is more complicated. The direct push injection has the disadvantages of high work repetition, multiple injections of the medicament into the same injection point, multiple injection points required for one repair area, multiple machines or multiple injections required, and low work efficiency.
Due to the serious shortage of the current technical equipment, the current soil remediation technical equipment has the advantages of small application range, strict soil quality requirement, high energy consumption, low efficiency, easy corrosion, secondary pollution risk and the like. Therefore, aiming at the problems faced by the composite pollution site in treatment and restoration, the engineering application development of efficient and broad-spectrum organic matter oxidation agents and long-acting curing/stabilizing functional materials is carried out, and the improvement of technical equipment suitable for the composite pollution site treatment and restoration is the core target of the research of the application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to achieve the aim, and provides in-situ injection equipment for soil and underground water remediation, which is particularly suitable for areas with more underground rocks or complex pipelines, avoids single-well drilling, realizes full-automatic operation, can perform multi-well excavation at one time, and adopts a method of injecting a chemical agent while drilling.
The technical scheme adopted by the utility model is as follows:
an in-situ injection device for soil and underground water remediation comprises a frame, a medicine tank arranged on the upper part of the frame, a motor fixedly connected to the frame, a transmission device fixedly connected to an output shaft of the motor, a drill rod group fixedly connected to the transmission device, a communication pipeline communicating an outlet of the medicine tank with an inlet of the drill rod group, a telescopic rod arranged at the lower end of the frame and a crawler walking part arranged at the lower end of the telescopic rod;
the frame is fixedly connected with a bracket;
the lower end of the bracket is fixedly connected with a retainer;
the retainer comprises a rotating shaft;
the transmission device comprises a driving gear and a driven gear;
the driven gear is sleeved on the rotating shaft and is rotationally connected with the rotating shaft;
the drill rod group comprises a plurality of drill rods;
each driven gear is fixedly connected with a drill rod.
Further:
the retainer comprises a triangular retainer and a rotating shaft fixedly connected to three vertexes of the triangular retainer; the rotating shafts comprise a first rotating shaft, a second rotating shaft and a third rotating shaft;
the first rotating shaft is rotatably connected with a first driven gear;
the second rotating shaft is rotatably connected with a second driven gear;
the third rotating shaft is rotatably connected with a third driven gear;
and the first driven gear, the second driven gear and the third driven gear are in meshing transmission with the driving gear.
Further:
the drill rod group comprises a first drill rod fixedly connected to the first driven gear, a second drill rod fixedly connected to the second driven gear and a third drill rod fixedly connected to the third driven gear.
Further:
the first drill rod comprises a first outer spiral sleeve fixedly connected to the first driven gear, a first drill rod shaft slidably connected to an inner hole of the first outer spiral sleeve, a first guide drill arranged at the tail end of the first drill rod shaft and a first guide head fixedly connected to the tail end of the first guide drill;
the first guide drill is provided with a central hole along the axis, and a first guide motor is arranged in the central hole;
and the output shaft of the first guide motor is fixedly connected with the first drill rod shaft.
Further:
the first drill shaft is in a circular tube shape;
the communication pipeline comprises a first pipeline and a second pipeline;
the first pipeline is communicated with a pipeline between the inner hole of the first drill rod shaft and the outlet of the medicine tank; the second pipeline is communicated with a pipeline between a gap between the first outer spiral sleeve and the first drill rod shaft and an outlet of the medicine tank;
outer liquid spraying holes are uniformly distributed on the pipe wall of the first outer spiral sleeve;
and inner liquid spraying holes are uniformly distributed on the pipe wall of the first drill rod shaft.
Further:
the first guide drill is in a circular cylindrical shape; more than one guide liquid spraying hole is formed in the outer circumference of the first guide drill; the guide liquid spraying hole penetrates through the outer wall of the first guide drill;
a liquid flowing hole is formed between the upper and lower adjacent guide liquid spraying holes;
the liquid flow hole is communicated with the inner liquid spraying hole.
Further:
a guide spiral drill edge is arranged on the outer circumference of the first guide drill;
the outer circumference of the first outer spiral sleeve is provided with a main spiral drill edge;
the first guide head is a cross twist drill edge.
Further:
the first drill rod includes one or more first drill rods, a first pilot drill, and a first pilot bit.
Further:
the structure of the second drill rod and the third drill rod is the same as that of the first drill rod.
Compared with the prior art, the utility model has the following beneficial effects:
1. this application uses the tracked vehicle to do the carrier, makes into integrated equipment, can remote control, can prepare the stage at equipment and pour into the liquid medicine into the medicinal cupping, switch-on injection circuit, when equipment drive into the region of awaiting measuring, can realize drilling injection work through remote control electrical equipment. This application need not on-the-spot workman and excavates the injection well, need not on-the-spot connecting tube class, reduces the labour, shortens the maintenance time limit for a project.
2. This application has adopted a motor to drive three drilling rod and has carried out the work of drilling and injection simultaneously to polluting soil, sets up on the drilling rod and spouts the night hole, can realize the function of limit drilling while injecting medicine, takes out the pollution condition of surveying the on-the-spot area of waiting to restore according to the experiment, sets for three drilling rod and highly carries out the medicine in the difference and spray, has increased the efficiency that the oxidation medicament was injected into in drilling, has shortened the activity duration, has practiced thrift the cost.
3. This application adopts gear drive's mode, adopts a gear wheel to drive three pinion pivoted mode and drives three drilling rod syntropy, and with the speed rotation, of course, on other mounting method, can rely on the operation that the rotating support realized three drilling rod different positions. The gear transmission can ensure that the drilling torque is large and the drilling work is ensured.
4. This application adopts the mode of hierarchical drilling, use the direction to bore earlier and carry out the drilling to ground, the soil that has loosened is discharged by the spiral sword on the first external spiral cover again, soil is derived through the spiral sword, the bite trouble of drilling rod has been reduced, and the direction of front end is bored and is adopted sharp material, some material slightly microsoft is adopted to hou mian spiral sword, be favorable to practicing thrift the cost, in addition with two bodies of spiral sword part, be favorable to changing the position that easily damages, easy maintenance.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a cross-sectional view A-A of FIG. 1 according to the present invention;
FIG. 3 is a schematic structural view of the drilling injection device of the present invention;
FIG. 4 is a schematic cross-sectional view of a first drill rod according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a first drill rod according to embodiment 2 of the present invention.
In the drawings: 1, a medicine tank; 2, a frame; 3, communicating a pipeline; 31 a first conduit; 32 a second conduit;
4, a transmission device; 41 motor; 42 a cage; 421 a first rotating shaft; 422 a second rotating shaft; 423 a third rotating shaft; 43 a support; 44 a driven gear; 441 a first driven gear; 442 a second driven gear; 443 a third driven gear; 45 driving gears; 5, drilling rod groups; 51 a first drill rod; 511 a first external screw shell; 512 a first drill shaft; 513 outer liquid spraying holes; 514 inner liquid spray holes; 52 a second drill pipe; 53 third drill pipe; 54 a first pilot drill; 541 leading auger blade; 542 leading to the liquid spray holes; 543 liquid flow holes; 55 a first pilot head; 56 a first steering motor; 6, telescoping a rod; a walking part 7.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments. It is to be understood that the terms "height," "width," "upper," "lower," "left," "right," and the like, as used herein, refer to an orientation or positional relationship illustrated in the drawings of the present application for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered a representation of the present invention.
As shown in fig. 1-5, an in-situ injection device for soil and groundwater remediation comprises a frame 2, a canister 1 disposed on the upper portion of the frame 2, a motor 41 fixedly connected to the frame 2, a transmission device 4 fixedly connected to an output shaft of the motor 41, a drill rod group 5 fixedly connected to the transmission device, a communication pipeline 3 communicating an outlet of the canister 1 and an inlet of the drill rod group 5, a telescopic rod 6 disposed at the lower end of the frame 2, and a crawler traveling part 7 disposed at the lower end of the telescopic rod 6; a bracket 43 is fixedly connected to the frame 2; the lower end of the bracket 43 is fixedly connected with a retainer 42; the holder 42 includes a rotation shaft; the transmission device 4 comprises a driving gear 45 and a driven gear 44; the driven gear 44 is sleeved on the rotating shaft and is rotationally connected with the rotating shaft; the drill rod group 5 comprises a plurality of drill rods; each driven gear is fixedly connected with a drill rod.
The retainer 42 comprises a triangular retainer 421 and a rotating shaft fixedly connected to three vertexes of the triangular retainer 424; the rotating shafts include a first rotating shaft 421, a second rotating shaft 422 and a third rotating shaft 423; a first driven gear 441 is rotatably connected to the first rotating shaft 421; the second rotating shaft 422 is rotatably connected with a second driven gear 442; a third driven gear 443 is rotatably connected to the third rotating shaft 423; the first driven gear 441, the second driven gear 442 and the third driven gear 443 are all in meshing transmission with the driving gear 45.
The rod assembly 5 includes a first rod 51 fixedly connected to the first driven gear 441, a second rod fixedly connected to the second driven gear 442, and a third rod fixedly connected to the third driven gear 443.
The first drill rod 51 comprises a first external screw sleeve 511 fixedly connected to the first driven gear 441, a first drill rod shaft 512 slidably connected to an inner hole of the first external screw sleeve 511, a first pilot drill 54 arranged at the tail end of the first drill rod shaft 512, and a first pilot head 55 fixedly connected to the tail end of the first pilot drill 54; a linear bearing 516 is arranged in a gap between the lower end of the inner hole of the first external spiral sleeve 511 and the excircle of the first drill rod shaft 512; an anti-slip collar is provided at the upper end of the first drill shaft 512.
The first guide drill 54 is provided with a central hole along the axis, and a first guide motor 56 is arranged in the central hole; the first steering motor 56 output shaft is fixedly connected to a first drill shaft 512. The first drill shaft 512 is tubular; the communication line includes a first line 31 and a second line 32; the first pipeline 31 is communicated with a pipeline between the inner hole of the first rotating shaft 421 and the outlet of the medicine tank 1; the second pipeline 32 is communicated with a pipeline between a gap between the first external spiral sleeve 511 and the first drill rod shaft 512 and an outlet of the medicine tank 1; outer liquid spraying holes 513 are uniformly distributed on the pipe wall of the first outer spiral sleeve 511; inner liquid spraying holes 514 are uniformly distributed on the pipe wall of the first drill shaft 512.
The first pilot drill 54 is provided with a pilot liquid spraying hole 542; a liquid flowing hole 543 is arranged between the upper and lower adjacent guide liquid spraying holes 542; the liquid flow hole 543 is communicated with the inner liquid spray hole 514. The outer circumference of the first pilot drill 54 is provided with a pilot auger blade 541; the outer circumference of the first external screw sleeve 511 is provided with a main screw drill edge 515; the first pilot head 55 is a cross twist drill edge. The second and third drill pipes are identical in structure to the first drill pipe 51.
The operation of the auger drilling machine is described below according to the contents of field construction work: because the groundwater pumping treatment cannot completely realize the groundwater remediation treatment due to the influences of pollutant distribution in a medium and groundwater flow unevenness, the groundwater remediation is assisted by adopting an in-situ injection well injection process. Namely, an injection mode is adopted, and the oxidizing agent is injected into the pollution range, so that the hydraulic connection of the underground water is kept balanced, and the aim of repairing the underground water is fulfilled. The target pollutants of the underground water in the project are chloroform and trichloroethylene, and the treatment process is an injection process of an oxidizing agent in-situ injection well. The number of times the medicament is injected and the depth at which the injection is started during the opening process are performed according to design documents. The diameter of the opening is 127mm, and the depth of the opening of 6 openings reaches 7.0 m of the bottom plate of the polluted aquifer. Based on the development result of the early-stage high-efficiency broad-spectrum organic matter oxidation medicament, the repairing mainly uses the following medicaments: H2O2, FeSO4, EDTA-2Na, the application rate parameters are shown in the following table.
Drilling is carried out by using a 127mm drill rod, and because the number of the required holes is 6, the equipment needs to drill twice in a design range. Since the movements of the three drill rods are identical, only the working process of the first drill rod 51 during the ground restoration will be described below, so that the working principle of the present application can be fully explained.
The construction operation adopts the automobile auger to drill, firstly survey the result, start the crawler walking part 7 to position the application to the area to be detected, adjust the telescopic rod 6 to make the lower end of the drill rod group 5 contact with the ground, and then start the first guiding motor 56; the first guiding motor 56 drives the first guiding head 55 to drill the ground; when the first pilot bit 54 reaches the soil level where the pesticide is to be sprayed, the first pipeline 31 is communicated, and the mixed pesticide solution of H2O2, FeSO4 and EDTA-2Na flows into the inner hole of the first drill rod shaft 512, then flows into the liquid flow hole 543 through the inner liquid spray hole 514, is sprayed out from the guide liquid spray hole 542, and is applied to the soil.
When the lower end face of the first outer spiral sleeve 511 enters the ground, the motor 41 is started, the driving gear 45 drives the first driven gear 441 to rotate, the first driven gear 441 is in key connection with the first outer spiral sleeve 511 to drive the first outer spiral sleeve 511 to rotate, the second driven gear 442 and the third driven gear 443 drive the second outer spiral sleeve and the third outer spiral sleeve to simultaneously rotate, three positions are simultaneously drilled with holes on the ground, when the first outer spiral sleeve 511 reaches the height of soil needing pesticide spraying, the second pipeline 32 is communicated, and the mixed pesticide liquid flows into a gap between the first outer spiral sleeve 511 and the first drill rod shaft 512 and is sprayed out through the outer pesticide spraying hole 513 to act on the soil.
When the first guide head 55 encounters gravel or hard clods, the traveling angle of the first guide head 55 is affected, and the first guide motor 56 drives the following first drill shaft 512 to deviate from the vertical direction, and if the force is too large, the first drill shaft 512 is driven to move horizontally, even to the horizontal direction. The first drill shaft 512 is made of a material with good toughness, 20CrMnTi is tempered by 15, and the surface is carburized by 56-62 HRC. Since the first pilot drill 54 is driven by the first pilot motor 56 to drill downward, in case of a large external force, in order to prevent the first drill shaft 512 from moving to the ground, a hydraulic cylinder pushing downward needs to be added to the upper end of the first drill shaft 512 to help the first pilot drill 54 to continuously drill in the soil.
Example 2
The first drill rod 51 includes one or more first drill shafts 512, a first pilot drill 54, and a first pilot bit 55. In this embodiment, a plurality of first drill shafts 512, a first pilot drill 54 and a first pilot head 55 may be disposed in the first drill rod 51, the first pilot heads 55 start drilling to the ground under the guidance of the first guide motor 56, and when different soil conditions are met, the first drill shafts 512 are subjected to different stresses, and the first drill shafts 512 drill in different directions along with the first pilot drill 54, and in the drilling process, an oxidation repairing agent is sprayed, and when a large external force is met, in order to avoid the first drill shafts 512 moving to the ground, a hydraulic cylinder which is pushed downward needs to be additionally disposed at the upper end of the first drill shafts 512. This embodiment has increased the drilling rod axle in each drilling rod and has bored rather than the direction, has also increased under the more condition of miscellaneous stone in soil, has improved the medicine coverage, has increased repair strength, raises the efficiency.
The embodiments described above are only preferred embodiments of the utility model and are not exhaustive of the possible implementations of the utility model. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the utility model so modified beyond the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a soil and groundwater remediation normal position injection apparatus which characterized in that: the automatic medicine feeding device comprises a frame (2), a medicine tank (1) arranged at the upper part of the frame (2), a motor (41) fixedly connected to the frame (2), a transmission device (4) fixedly connected to an output shaft of the motor (41), a drill rod group (5) fixedly connected to the transmission device (4), a communication pipeline (3) communicating an outlet of the medicine tank (1) with an inlet of the drill rod group (5), a telescopic rod (6) arranged at the lower end of the frame (2) and a crawler traveling part (7) arranged at the lower end of the telescopic rod (6);
a bracket (43) is fixedly connected to the frame (2);
the lower end of the bracket (43) is fixedly connected with a retainer (42);
the transmission device (4) comprises a driving gear (45) and a driven gear (44);
the driven gear (44) is sleeved on the rotating shaft and is rotationally connected with the rotating shaft;
the drill rod group (5) comprises a plurality of drill rods;
each driven gear (44) is fixedly connected with a drill rod.
2. The in-situ injection apparatus for soil and groundwater remediation as claimed in claim 1, wherein:
the retainer (42) comprises a triangular retainer (424) and a rotating shaft fixedly connected to three vertexes of the triangular retainer (424); the rotating shafts comprise a first rotating shaft (421), a second rotating shaft (422) and a third rotating shaft (423); the driven gear (44) includes a first driven gear (441), a second driven gear (442), and a third driven gear (443);
the first rotating shaft (421) is rotatably connected with a first driven gear (441);
the second rotating shaft (422) is rotatably connected with a second driven gear (442);
a third driven gear (443) is rotatably connected to the third rotating shaft (423);
the first driven gear (441), the second driven gear (442) and the third driven gear (443) are in meshing transmission with the driving gear (45).
3. The in-situ injection apparatus for soil and groundwater remediation as claimed in claim 2, wherein:
the drill rod group (5) comprises a first drill rod (51) fixedly connected to the first driven gear (441), a second drill rod (52) fixedly connected to the second driven gear (442), and a third drill rod (53) fixedly connected to the third driven gear (443).
4. The in-situ injection apparatus for soil and groundwater remediation as claimed in claim 3, wherein:
the first drill rod (51) comprises a first outer spiral sleeve (511) fixedly connected to the first driven gear (441), a first drill rod shaft (512) slidably connected to an inner hole of the first outer spiral sleeve (511), a first guide drill (54) arranged at the tail end of the first drill rod shaft (512), and a first guide head (55) fixedly connected to the tail end of the first guide drill (54);
a central hole is formed in the first guide drill (54) along the axis, and a first guide motor (56) is arranged in the central hole;
the first steering motor (56) output shaft is fixedly connected to a first drill shaft (512).
5. The in-situ injection device for soil and groundwater remediation as claimed in claim 4, wherein:
the first drill shaft (512) is tubular;
the communication line comprises a first line (31) and a second line (32);
the first pipeline (31) is communicated with a pipeline between an inner hole of the first drill rod shaft (512) and an outlet of the medicine tank (1); the second pipeline (32) is communicated with a pipeline between a gap between the first external spiral sleeve (511) and the first drill rod shaft (512) and an outlet of the medicine tank (1);
outer liquid spraying holes (513) are uniformly distributed on the pipe wall of the first outer spiral sleeve (511);
inner liquid spraying holes (514) are uniformly distributed on the pipe wall.
6. The in-situ injection apparatus for soil and groundwater remediation as claimed in claim 5, wherein:
the first pilot drill (54) is in a circular cylindrical shape; the outer circumference of the first guide drill (54) is provided with more than one guide liquid spraying hole (542); the guide liquid spraying hole (542) penetrates through the outer wall of the first guide drill (54); a liquid flowing hole (543) is arranged between the upper and lower adjacent guide liquid spraying holes (542);
the liquid flow hole (543) is communicated with the inner liquid spraying hole (514).
7. The in-situ injection device for soil and groundwater remediation as claimed in claim 4, wherein:
a guide spiral drill blade (541) is arranged on the outer circumference of the first guide drill (54);
the outer circumference of the first outer screw sleeve (511) is provided with a main screw drill edge (515);
the first guide head (55) is a cross twist drill edge.
8. The in-situ injection device for soil and groundwater remediation as claimed in claim 4, wherein:
the first drill rod (51) includes one or more first drill shafts (512), a first pilot drill (54), and a first pilot bit (55).
9. The in-situ injection apparatus for soil and groundwater remediation as claimed in claim 6 or claim 7, wherein:
the second drill rod (52) and the third drill rod (53) have the same structure as the first drill rod (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122137436.3U CN215785669U (en) | 2021-09-06 | 2021-09-06 | Soil and groundwater remediation normal position injection apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122137436.3U CN215785669U (en) | 2021-09-06 | 2021-09-06 | Soil and groundwater remediation normal position injection apparatus |
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| CN215785669U true CN215785669U (en) | 2022-02-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116907915A (en) * | 2023-09-14 | 2023-10-20 | 广东禹航环境科技有限公司 | Soil sampling equipment for soil pollution treatment |
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2021
- 2021-09-06 CN CN202122137436.3U patent/CN215785669U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116907915A (en) * | 2023-09-14 | 2023-10-20 | 广东禹航环境科技有限公司 | Soil sampling equipment for soil pollution treatment |
| CN116907915B (en) * | 2023-09-14 | 2023-12-12 | 广东禹航环境科技有限公司 | Soil sampling equipment for soil pollution treatment |
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