CN211360044U - Soil thermal desorption processing system - Google Patents
Soil thermal desorption processing system Download PDFInfo
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- CN211360044U CN211360044U CN201922026093.6U CN201922026093U CN211360044U CN 211360044 U CN211360044 U CN 211360044U CN 201922026093 U CN201922026093 U CN 201922026093U CN 211360044 U CN211360044 U CN 211360044U
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Abstract
The utility model discloses a soil thermal desorption processing system, including heating system (1), extraction system (4) and box (2), box (2) are used for holding contaminated soil, and heating system (1) is used for providing the heat for contaminated soil through heating pipe (13), and extraction system (4) are used for polluting the gas outgoing that produces behind the soil heating through extraction pipe (41) in with box (2). The utility model provides a soil thermal desorption processing system has solved among the prior art higher, the difficult fashioned contaminated soil of water content and can't carry out the heap and handle and just can't use thermal desorption processing technology to carry out prosthetic problem, has enlarged the application scope of equipment effectively.
Description
Technical Field
The utility model relates to a pollute soil restoration technical field, in particular to soil thermal desorption processing system.
Background
At present, the commonly used organic contaminated soil remediation technologies include a thermal desorption technology, a chemical oxidation technology, a gas phase extraction technology, a microorganism remediation technology and the like. The thermal desorption technology is widely applied to projects due to the advantages of high treatment speed, thorough organic matter treatment and the like.
The thermal desorption technique can be divided into ex-situ thermal desorption and in-situ thermal desorption according to the operation mode. An indirect decompression thermal desorption processing system is built to organic contaminated soil dystopy among the prior art, when carrying out thermal desorption to organic contaminated soil, need pile up contaminated soil according to certain thickness layering, through heating system heating soil, turn into steam with the organic pollutant in the soil, recycle and extract the steam that the system will contain the organic pollutant and take out and handle qualified back emission through tail gas treatment discharge system, when organic pollutant concentration reduces to under the restoration target value in the soil, contaminated soil restores and accomplishes.
This repair system is at the during operation, requires to wait that prosthetic contaminated soil can carry out the pile and handles, then just can carry out subsequent repair work, nevertheless to the higher organic contaminated soil of water content, the mobility is bigger, hardly or can't carry out the pile and handle, consequently just can not use this system to restore, and the treatment range of equipment receives very big restriction.
How to solve the above-mentioned defects in the prior art is a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a soil thermal desorption processing system makes the higher, difficult fashioned organic contaminated soil of water content also can carry out the heap and handle, utilizes thermal desorption processing technology to restore, effectively enlarges the application scope of equipment.
For solving this technical problem, the utility model discloses a soil thermal desorption processing system, including heating system, extraction system and box, the box is used for holding contaminated soil, and heating system is used for providing the heat for contaminated soil through the heating pipe, and the extraction system is used for polluting the gas outgoing that produces behind the soil heating through the extraction pipe with the box.
The utility model discloses an among the soil thermal desorption processing system, be provided with the box, the water content is higher like this, be difficult for fashioned organic contaminated soil just can pile up in the box, accomplishes the thermal desorption through heating system and extraction system and handles, has solved among the prior art difficult fashioned contaminated soil and just can't use this system to carry out prosthetic problem, has effectively enlarged the application range of equipment.
Optionally, the extraction tube is provided with a plurality of cutting seams arranged along the length direction of the extraction tube.
After setting up as above, after the extraction pipe inserted the box, can with the lateral wall butt of box, the inside and outside of extraction pipe passes through the cutting slit intercommunication, and the steam that contains organic pollutant of each position in the box can in time be taken out by the extraction pipe through the cutting slit, and the treatment effect is high, can discharge after the steam taken out is qualified through gas treatment system treatment.
Optionally, the outer surface of the extraction tube is wrapped with a screen at least at the location of the cutting slits.
The fine particles in the polluted soil can be effectively prevented from entering the extraction pipe by the arrangement of the screen, so that the cutting seams are blocked, and the air suction of the extraction system is prevented from being influenced.
Optionally, a first through hole through which the heating pipe passes and a second through hole through which the extraction pipe passes are formed in the side wall of the box body, the heating pipe is in clearance fit with the first through hole, and the extraction pipe is in clearance fit with the second through hole.
Optionally, the heating system includes a plurality of heating pipes, the plurality of heating pipes are divided into at least one heating pipe group, and the plurality of heating pipes of each heating pipe group are uniformly arranged in the box body along the transverse direction.
Optionally, the number of the heating pipe sets is more than two, and the heating pipe sets are uniformly arranged in the box body along the vertical direction.
The heating pipes are uniformly arranged inside the box body, so that contaminated soil in the box body can be uniformly heated, and the soil at each position can be repaired.
Optionally, the extraction system comprises a plurality of extraction pipes, and the plurality of extraction pipes are uniformly arranged between two adjacent heating pipe sets along the transverse direction.
A plurality of extraction pipes are uniformly arranged between two adjacent heating pipe groups, so that gas containing organic pollutants can be discharged through the extraction pipes in time.
Optionally, a water storage bin is arranged at the bottom of the box body, and the water storage bin is communicated with the box body through a screen.
The water storage bin is arranged on the lower portion of the box body, contaminated soil is located on the screen, and water in the contaminated soil can permeate into the water storage bin through the screen, so that the water content of the contaminated soil is reduced, and the effect of thermal desorption treatment is improved.
Optionally, the sewage treatment system further comprises a sewage disposal system, wherein a sewage draining outlet is formed in the wall surface of the water storage bin and is communicated with the water disposal system through a sewage draining pipeline.
The water in the water storage bin is discharged after being treated by the water treatment system, so that the secondary pollution can be effectively avoided.
Optionally, the outer surface of the box body is provided with an insulating layer.
The heat preservation layer can ensure that the heat in the box body is not dissipated outwards, so that the polluted soil is always at a higher temperature, and the effect of thermal desorption treatment is ensured.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the thermal desorption treatment system for soil according to the present invention;
FIG. 2 is a top sectional view of the embodiment;
FIG. 3 is a top view of the water storage bin of this embodiment;
wherein, in fig. 1 to 3:
1-a heating system; 11-a power supply system; 12-a cable; 13-heating the tube; 2-a box body; 3, insulating layer; 4-an extraction system; 41-an extraction pipe; 42-a gas conduit; 43-an extraction fan; 5-a gas treatment system; 6-a water storage bin; 7-a screen mesh; 8-a sewage draining outlet; 9-a sewage draining pipe; 10-water treatment system.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The "lateral" direction herein is the horizontal direction of the case 2, and the "vertical" direction is the height direction of the case 2.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an embodiment of a thermal desorption treatment system for soil according to the present invention, fig. 2 is a sectional top view of the embodiment, and fig. 3 is a top view of a water storage bin of the embodiment.
The utility model provides a soil thermal desorption processing system, including heating system 1, extraction system 4 and box 2, box 2 is used for holding contaminated soil, and heating system 1 is used for providing the heat for contaminated soil through heating pipe 13, and extraction system 4 is used for polluting the gas outgoing that produces after the soil heating in with box 2 through extraction pipe 41.
The utility model discloses a be provided with box 2 among the soil thermal desorption processing system, higher, the difficult fashioned organic contaminated soil of water content just can be stockpiled in box 2 like this, accomplishes the thermal desorption through heating system 1 and extraction system 4 and handles, has solved among the prior art difficult fashioned contaminated soil and just can't use this system to carry out prosthetic problem, has effectively enlarged the application range of equipment.
In addition, this soil thermal desorption processing system is provided with box 2, and organic contaminated soil stacks and handles in box 2, does not have special requirement to the treatment environment, and this system can directly carry out repairing in situ after excavating contaminated soil, realizes in situ dystopy thermal desorption processing, saves the cost of transportation when the dystopy is handled.
It should be noted that, in practical application, the soil thermal desorption treatment system is not only suitable for organic contaminated soil with high water content and difficult molding, but also can be adopted for organic contaminated soil capable of being piled.
The soil thermal desorption treatment system is also suitable for the restoration treatment of oil sludge.
As shown in fig. 1, in the present embodiment, the heating system 1 includes a power supply system 11, an electric cable 12, and a heating pipe 13. The heating pipe 13 is an electric heating pipe, and the material of the heating pipe can be a non-metal carbon silicon rod, and is connected with the power supply system 11 through a cable 12.
The extraction system 4 comprises an extraction pipe 41, a gas pipeline 42 and an extraction fan 43, wherein the extraction fan 43 is used for generating a certain vacuum degree in the polluted soil, and one end of the extraction fan is communicated with the extraction pipe 41 through the gas pipeline 42 so as to conveniently extract the gas containing organic pollutants out of the box body 2.
In this embodiment, the thermal desorption treatment system for soil further includes a gas treatment system 5 connected to the extraction system 4, and the gas treatment system 5 is configured to treat the steam containing organic contaminants extracted by the extraction system 4.
The heating system 1 provides heat for the polluted soil through the heating pipe 13, when the polluted soil is heated to a certain temperature, and water vapor and organic pollutants in the polluted soil are volatilized, the extraction system 4 extracts gas containing organic pollutants to the gas treatment system 5 through the extraction pipe 41, the pollutant gas is discharged after reaching the standard after being treated, and secondary pollution is effectively avoided.
The extraction fan 43 can generate a negative pressure environment around the extraction pipe 41, and the reduction of the atmospheric pressure inside the contaminated soil can reduce the boiling point of the organic pollutants, so that the organic pollutants are more easily volatilized, and the repair rate of the contaminated soil is accelerated. In practical application, the extraction fan 43 can be controlled to keep the vacuum degree in the box body 2 within the range of 0.5-20 kPa, and the vacuum degree range can be adjusted according to different soil to be specifically treated.
In the embodiment, the heating system 1 adopts an electric heating manner, or may adopt another heating manner, such as steam heating or gas heating, and the target heating temperature is generally 100 to 500 ℃, specifically adjusted according to the nature of the pollutant.
The gas treatment system 5 comprises a condenser, a gas-liquid separator, a mist catcher, an activated carbon adsorption tank and the like, and in specific application, the gas treatment system 5 can be one or a combination of a plurality of the condenser, the gas-liquid separator, the mist catcher and the activated carbon adsorption tank, and the sequence of all the components can be set according to requirements during combination.
As shown in fig. 1 and fig. 2, in the present embodiment, a first through hole for passing the heating pipe 13 and a second through hole for passing the extraction pipe 41 are respectively formed on the side wall of the box body 2, wherein the heating pipe 13 is in clearance fit with the first through hole, and the extraction pipe 41 is in clearance fit with the second through hole, so that the heating pipe 13 and the extraction pipe 41 can be conveniently inserted into the box body 2.
One end of the heating pipe 13 is inserted into the box body 2 through the first through hole, the other end is connected with the cable 12, one end of the extraction pipe 41 is inserted into the box body 2 through the second through hole, and the other end is communicated with the gas pipeline 42.
In this embodiment, the material of the box body 2 can be ordinary carbon steel, and of course, other materials are also possible, and the thickness and the specific size of the box body 2 are not strictly limited, and the use requirement can be met.
In this embodiment, the heating system 1 includes a plurality of heating pipes 13, the plurality of heating pipes 13 are divided into at least one heating pipe group, and the plurality of heating pipes 13 of each heating pipe group are uniformly arranged in the lateral direction in the box body 2, so that soil in each area in the box body 2 can be heated.
In practical application, preferably set up the heating pipe set more than two, each heating pipe set is along vertical evenly arranged in box 2, each heating pipe set is along the direction of height equipartition in box 2 promptly, can understand the layering in the direction of height with the soil that piles up in box 2, every layer all is equipped with heating pipe 13, and every layer of heating pipe 13 has a plurality ofly along horizontal equipartition, like this, can make the soil of each region in box 2 heat as far as synchronous as possible, ensure the heating homogeneity, improve the treatment effect.
Similarly, the extraction system 4 includes a plurality of extraction pipes 41, the plurality of extraction pipes 41 are divided into at least one extraction pipe group, one extraction pipe group is disposed between every two adjacent heating pipe groups, and the plurality of extraction pipes 41 of each extraction pipe group are uniformly arranged along the transverse direction. After the arrangement, the polluted gas generated by each layer of heated soil can be discharged out of the box body 2 through the extraction pipe 41 in time.
In the illustrated embodiment, the extraction pipe 41 and the heating pipe 13 are arranged parallel to each other inside the tank 2.
In an application example, the distance between two adjacent heating pipe sets is 1m, the distance between two adjacent heating pipes 13 in each heating pipe set is also 1m, and the number of the heating pipes 13 of each heating pipe set is the same, so that four heating pipes 13 adjacent to each other up and down are arranged in a square in the box body 2, and the extraction pipe 41 between two adjacent heating pipe sets can be positioned in the center of the square surrounded by the four heating pipes 13 adjacent to the extraction pipe 41 and arranged in a staggered manner with the heating pipes 13.
Of course, the extraction pipes 41 and the heating pipes 13 may be arranged in the box body 2 in a non-parallel manner, or may be arranged in a space cross manner, the distance between two adjacent heating pipe groups, the distance between two adjacent heating pipes 13 in each heating pipe group, and the distance between two adjacent extraction pipes 41 in each group are not limited to the above-mentioned limitation, each of the aforementioned distances may be selected within the range of 0.5 to 2m, as long as it is ensured that the contaminated soil in the box body 2 can be uniformly heated, and the generated organic contaminated gas can be discharged in time.
In this embodiment, the material of the extraction pipe 41 may be carbon steel, and a plurality of cutting seams are provided along the length direction thereof, and the plurality of cutting seams are preferably evenly distributed along the length direction of the extraction pipe 41.
Set up like this, back in the extraction pipe 41 inserts box 2, its male one end can with the lateral wall butt that corresponds of box 2, like this, organic gaseous pollutants in the box 2 can get into extraction pipe 41 through this cutting seam and inside being taken out, evenly set up a plurality of cutting seams along the length direction of extraction pipe 41, can guarantee that the inside organic gaseous pollutants of box 2 discharges through the nearest cutting seam more conveniently, improve the efficiency that gaseous pollutants were taken out, guarantee to pollute soil prosthetic effect.
In this embodiment, the diameter of the extraction tube 41 may be 25 to 50mm, the width of the cutting seam may be 2 to 3mm, and the distance between the cutting seams may be 15 to 20 mm.
In addition, the outer surface of the extraction tube 41 is covered with a screen at least at the position of the cutting slits.
The arrangement of the screen can effectively prevent fine particles in the polluted soil from entering the extraction pipe 41 to block the cutting seams and influence the discharge of polluted gas.
In practice, the outer surface of the extraction tube 41 may be covered with a screen for convenience.
In this embodiment, the mesh number of the mesh wrapped around the extraction pipe 41 may be 50 to 150 mesh.
As shown in fig. 3, in the present embodiment, a water storage bin 6 is disposed at the bottom of the box body 2, and the water storage bin 6 is communicated with the box body 2 through a screen 7.
After the arrangement, during treatment, the polluted soil is stacked in the box body 2 and is positioned on the screen 7, and under the action of gravity, the water in the polluted soil can permeate into the water storage bin 6 through the screen 7, so that the water content of the polluted soil is reduced, the heating efficiency of the heating system 1 can be improved, and the effect of thermal desorption treatment is improved.
In the concrete scheme, this soil thermal desorption processing system still includes water treatment system 10, still is provided with more than one drain 8 on the wall in water storage storehouse 6, and drain 8 passes through blow off pipe 9 and water treatment system 10 intercommunication, and water treatment system 10 is used for handling the contaminated water, discharges after water treatment system 10 handles qualified, can effectively avoid secondary pollution.
In an embodiment, the height of the water storage bin 8 can be 10-20 cm, and the mesh number of the screen 7 can be 50-150 meshes.
The water treatment system 10 includes a dissolving tank, a dosing tank, a stirring tank, a settling tank, etc.
In addition, in this embodiment, the surface of box 2 still is provided with heat preservation 3, and the material of heat preservation 3 can be rock wool, and rock wool thickness is 30 ~ 100mm, and preferred thickness is 50mm, and of course, the heat preservation also can be other insulation material, for example aerogel felt, glass cotton, expanded perlite etc..
The setting of heat preservation 3 can prevent that the inside heat of box 2 from outwards dissipating, makes to pollute soil and keeps higher temperature throughout, guarantees the effect that thermal desorption handled.
Compare with current heap processing mode of building, this soil thermal desorption processing system is provided with box 2, and heat preservation 3 sets up at 2 surfaces of box, can understand that heat preservation 3 can used repeatedly, is not disposable consumables, can reduce cost.
Obviously, the dimensions of the above mentioned components are exemplary illustrations, and in practical applications, the dimensional parameters of the components can be properly adjusted according to the size of the box body 2, the different contaminated soils to be treated and other relevant factors, as long as the treatment effect of the contaminated soils can be ensured.
This soil thermal desorption processing system when in actual use, can install box 2 and heat preservation 3 in advance, obviously, be provided with the heat preservation 3 that sets up on the lateral wall of the through-hole that supplies heating pipe 13 and extraction pipe 41 to pass on the box 2, also be equipped with the through-hole at the position that corresponds the through-hole, the relevant pipeline of heating system 1 and the relevant pipeline of extraction system all connect in advance.
Conveying the organic contaminated soil to the position of the soil thermal desorption treatment system (in situ of the contaminated soil or in other places as required), stacking the organic contaminated soil in the box body 2 to the position of the first heating pipe group, sequentially inserting the heating pipes 13 of the first heating pipe group into corresponding first through holes on the side wall of the box body 2, and enabling the heating pipes 13 to be abutted against the corresponding side wall of the box body 2, at the moment, simultaneously inserting the extraction pipes 41 of the first extraction pipe group into the box body 2 and abutting against the corresponding side wall of the box body 2, or continuously stacking the organic contaminated soil to the height of the first extraction pipe group and then inserting the extraction pipes 41; and then, continuously piling up the organic contaminated soil in the box body 2 and inserting the heating pipes 13 and the extraction pipes 42 at the corresponding positions until the organic contaminated soil is fully piled up in the box body 2, so that the heating pipes 13 and the extraction pipes 41 are also buried in the organic contaminated soil according to the preset vertical height and the preset horizontal position, after the box body 2 is closed, the extraction system 4, the gas treatment system 5 and the heat supply system 1 are started, the organic contaminated soil is heated through the heating pipes 13, after the organic contaminated soil is heated to the set temperature (which can be preset according to the organic contaminated soil to be treated), water vapor and organic pollutants in the organic contaminated soil are volatilized, enter the gas treatment system 5 through the extraction pipes 41, and are discharged after the treatment reaches the standard. If the organic contaminated soil has higher water content, water permeates into the water storage bin 6 through the screen 7 at the bottom of the box body 2, then the wastewater is treated through the water treatment system 10, and the wastewater is discharged after reaching the standard.
In the above treatment process, the soil is firstly stockpiled and then inserted into the pipe, and it can be understood that, in actual arrangement, the soil can be stockpiled in the box 2 after the heating pipes 13 and the extraction pipes 41 are inserted into the box 2. Relatively speaking, the stacking soil and the insertion pipe are crossed, which is beneficial to protecting the heating pipe 13 and the extraction pipe 41 and avoids the damage to the heating pipe 13 and the extraction pipe 41 when the soil is stacked after the insertion.
It is right above the utility model provides a soil thermal desorption processing system introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The utility model provides a soil thermal desorption processing system, includes heating system (1) and extraction system (4), its characterized in that: the soil treatment device is characterized by further comprising a box body (2), wherein the box body (2) is used for containing contaminated soil, the heat supply system (1) is used for providing heat for the contaminated soil through a heating pipe (13), and the extraction system (4) is used for exhausting gas generated after the contaminated soil is heated in the box body (2) through an extraction pipe (41).
2. The thermal soil desorption treatment system of claim 1, wherein: the extraction pipe (41) is provided with a plurality of cutting seams which are arranged along the length direction of the extraction pipe.
3. The thermal soil desorption treatment system of claim 2, wherein: the outer surface of the extraction pipe (41) is wrapped with a screen at least at the position of the cutting seam.
4. The thermal soil desorption treatment system of claim 1, wherein: the lateral wall of box (2) is provided with the confession the first through-hole that heating pipe (13) passed and the confession second through-hole that extraction pipe (41) passed, heating pipe (13) with first through-hole clearance fit, extraction pipe (41) with second through-hole clearance fit.
5. The soil thermal desorption processing system of claim 4, wherein: the heating system (1) comprises a plurality of heating pipes (13), the heating pipes (13) are divided into at least one heating pipe group, and the heating pipes (13) of each heating pipe group are uniformly arranged in the box body (2) along the transverse direction.
6. The soil thermal desorption processing system of claim 5, wherein: the number of the heating pipe sets is more than two, and the heating pipe sets are uniformly arranged in the box body (2) along the vertical direction.
7. The soil thermal desorption processing system of claim 6, wherein: the extraction system (4) comprises a plurality of extraction pipes (41), and the plurality of extraction pipes (41) are uniformly arranged between every two adjacent heating pipe sets along the transverse direction.
8. The thermal soil desorption treatment system of claim 1, wherein: the bottom of the box body (2) is provided with a water storage bin (6), and the water storage bin (6) is communicated with the box body (2) through a screen (7).
9. The soil thermal desorption processing system of claim 8, wherein: the water storage device is characterized by further comprising a water treatment system (10), wherein a sewage draining outlet (8) is formed in the wall surface of the water storage bin (6), and the sewage draining outlet (8) is communicated with the water treatment system (10) through a sewage draining pipeline (9).
10. The thermal soil desorption treatment system of any one of claims 1 to 9, wherein: and a heat-insulating layer (3) is arranged on the outer surface of the box body (2).
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| CN201922026093.6U CN211360044U (en) | 2019-11-21 | 2019-11-21 | Soil thermal desorption processing system |
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| CN201922026093.6U CN211360044U (en) | 2019-11-21 | 2019-11-21 | Soil thermal desorption processing system |
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| CN211360044U true CN211360044U (en) | 2020-08-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404117A (en) * | 2020-11-10 | 2021-02-26 | 上海浦兴路桥建设工程有限公司 | Volatile pollutant purification system and purification method |
| CN112570444A (en) * | 2020-11-25 | 2021-03-30 | 北京高能时代环境技术股份有限公司 | Low-temperature heat-enhanced chemical oxidation-microorganism coupling repair system and method for polycyclic aromatic hydrocarbon contaminated soil |
| CN113714268A (en) * | 2021-10-18 | 2021-11-30 | 南京贻润环境科技有限公司 | High-efficient thermal desorption modularization processing apparatus |
| CN114951251A (en) * | 2022-06-15 | 2022-08-30 | 生态环境部南京环境科学研究所 | Intelligent pesticide chemical field contaminated soil remediation device and remediation method |
| CN116493400A (en) * | 2023-05-19 | 2023-07-28 | 四川省冶勘设计集团生态环境工程有限公司 | Soil thermal desorption device and soil thermal desorption system comprising same |
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2019
- 2019-11-21 CN CN201922026093.6U patent/CN211360044U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404117A (en) * | 2020-11-10 | 2021-02-26 | 上海浦兴路桥建设工程有限公司 | Volatile pollutant purification system and purification method |
| CN112570444A (en) * | 2020-11-25 | 2021-03-30 | 北京高能时代环境技术股份有限公司 | Low-temperature heat-enhanced chemical oxidation-microorganism coupling repair system and method for polycyclic aromatic hydrocarbon contaminated soil |
| CN113714268A (en) * | 2021-10-18 | 2021-11-30 | 南京贻润环境科技有限公司 | High-efficient thermal desorption modularization processing apparatus |
| CN114951251A (en) * | 2022-06-15 | 2022-08-30 | 生态环境部南京环境科学研究所 | Intelligent pesticide chemical field contaminated soil remediation device and remediation method |
| CN116493400A (en) * | 2023-05-19 | 2023-07-28 | 四川省冶勘设计集团生态环境工程有限公司 | Soil thermal desorption device and soil thermal desorption system comprising same |
| CN116493400B (en) * | 2023-05-19 | 2024-03-08 | 四川省冶勘设计集团生态环境工程有限公司 | Soil thermal desorption device and soil thermal desorption system comprising same |
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