CN110602814A - Splicing electric heater for soil in-situ thermal desorption - Google Patents
Splicing electric heater for soil in-situ thermal desorption Download PDFInfo
- Publication number
- CN110602814A CN110602814A CN201910857931.6A CN201910857931A CN110602814A CN 110602814 A CN110602814 A CN 110602814A CN 201910857931 A CN201910857931 A CN 201910857931A CN 110602814 A CN110602814 A CN 110602814A
- Authority
- CN
- China
- Prior art keywords
- electric heater
- splicing
- flange
- thermal desorption
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 26
- 238000003795 desorption Methods 0.000 title claims abstract description 24
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 23
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 27
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims abstract description 19
- 238000005485 electric heating Methods 0.000 claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 9
- 229920002545 silicone oil Polymers 0.000 claims description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000002957 persistent organic pollutant Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a splicing electric heater for in-situ soil thermal desorption, which belongs to the technical field of electric heating of in-situ soil thermal desorption and comprises a plurality of electric heater units, wherein the electric heater units are spliced with one another. The electric heater unit comprises a heating part and splicing parts, wherein the splicing parts are arranged at two ends of the heating part. The heating component comprises a stainless steel protective sleeve, a wire connecting rod, an electric heating wire and a magnesium oxide protective tube. The splicing component comprises a binding post, a nut gasket, a ceramic connector lug, a top connecting flange, a binding post clamping groove and a bottom connecting flange. The invention is a splicing electric heater with customizable length, simple processing and convenient transportation. The electric heater with any length can be spliced through flange connection according to the actual treatment depth and technical requirements of soil in-situ thermal desorption, is flexible to use and is not limited by the depth of a complex polluted site.
Description
Technical Field
The invention relates to the technical field of electric heating of soil in-situ thermal desorption, in particular to a splicing electric heater for soil in-situ thermal desorption.
Background
In recent years, along with the shortage of hazardous waste/solid waste disposal sites and the further improvement of the requirements of ten soil and soil environmental quality standard on air pollution control, organic pollution sites such as long triangles, bead triangles and the like are more subjected to in-situ thermal desorption technology for repairing volatile/semi-volatile organic pollution soil, wherein the in-situ thermal desorption technology is small in soil disturbance, convenient for air pollution control and free of outward soil transportation. The electric heating technology in the soil in-situ thermal desorption technology uses electric energy as energy, converts the electric energy into heat energy and leads the heat energy to the underground, transmits the heat energy to the whole site pollution area through the heat conduction effect of soil to improve the site temperature, extracts the volatile/semi-volatile organic pollutants in a concentrated manner after high-temperature desorption, and finally discharges the volatile/semi-volatile organic pollutants after the volatile/semi-volatile organic pollutants reach the standard through the tail gas treatment equipment restoration. The electric heating device has the outstanding characteristics of simple heating system equipment, clean energy use, no combustible substance storage, no combustion tail gas emission and the like, can effectively treat volatile organic pollutants and semi-volatile organic pollutants under the condition of not disturbing the surrounding environment, and has good market application prospect, so that the electric heating technology is a mainstream heating mode adopted in the in-situ thermal desorption technology.
The pollutant in the polluted soil can reach below 20m underground at most, which requires that the length of an electric heater of the in-situ thermal desorption electric heating technology can reach above 20 m. Limited by technology and place, few manufacturers capable of processing in China have problems of difficult transportation, inconvenient installation, unrecyclable utilization and the like after processing.
Disclosure of Invention
The invention aims to solve the technical problems that the conventional electric heater is low in early-stage efficiency, cannot be recycled, is difficult to transport and is inconvenient to install, has the advantages of simplicity in processing, convenience in transportation, flexibility in installation, stability in operation and the like, can solve the problems of the conventional electric heater, effectively improves the early-stage efficiency of the soil in-situ thermal desorption electric heating technology, and can realize the recycling of equipment.
A splicing electric heater for in-situ soil thermal desorption comprises a plurality of electric heater units, wherein the electric heater units are spliced with one another;
the electric heater unit comprises a heating part and splicing parts, wherein the splicing parts are arranged at two ends of the heating part, the heating part comprises a stainless steel protective sleeve, a wire connecting rod, a heating wire and a magnesium oxide protective tube, the heating wire is arranged at the inner side of the wire connecting rod and is connected with the wire connecting rod, and the magnesium oxide protective tube is arranged in the stainless steel protective tube and is arranged at the periphery of the heating wire and the wire connecting rod; splice the part and include terminal, nut gasket, ceramic connector lug, top flange, terminal draw-in groove and bottom flange, top flange and bottom flange set up the both ends at stainless steel protective case respectively, top flange's inboard is provided with the top and seals silicon oil, and bottom flange's inboard is provided with the bottom and seals silicon oil, be provided with the perforation on the flange of top, ceramic connector lug sets up on perforating, the terminal stick passes ceramic connector lug, the terminal is connected with the terminal stick and screws up fixedly through the nut gasket, the terminal draw-in groove sets up in bottom flange, and terminal draw-in groove outside-in recess sets up.
Further, the splicing part further comprises a high-temperature-resistant aluminum oxide flange gasket, the high-temperature-resistant aluminum oxide flange gasket is attached to the top connecting flange, and the high-temperature-resistant aluminum oxide flange gasket is arranged to be a round gasket and arranged on the outer side of the binding post.
Furthermore, bolt holes are formed in the top connecting flange and the bottom connecting flange, fastening bolts are arranged on the bolt holes, and the top connecting flange of the electric heater unit and the bottom connecting flange of the other electric heater unit are screwed and fixed through the fastening nuts.
Furthermore, the wire connecting rod in each electric heater unit is connected with the heating wire in series, and after the electric heater units are spliced with the electric heater units, the heating wires between the electric heater units are connected in parallel.
Furthermore, the magnesium oxide protective tube is filled with magnesium oxide crystal particles, and the electric heating wire and the wire connecting rod are arranged without contacting the stainless steel protective sleeve.
Furthermore, after the magnesium oxide protection tube in the electric heater unit is installed and filled with magnesium oxide particles, the diameter of the stainless steel protection sleeve is reduced through the pipe reducing machine, so that the inner wall of the outer sleeve is tightly attached to the outer wall of the magnesium oxide protection tube, and the magnesium oxide particles protect the electric heating wire and the wiring rod.
Furthermore, the splicing part of the electric heater unit is sealed by adopting high-temperature-resistant insulating silicone oil, so that the insulating performance of the connecting part is improved.
The electric heaters can be spliced into electric heaters with different lengths by a plurality of electric heaters, wherein a wiring rod in each electric heater is connected with the electric heating wire in series, and the electric heating wires between the electric heaters are connected in parallel after splicing.
The electric heater is characterized in that a plurality of sections of magnesium oxide protection pipes are arranged in the electric heater, the magnesium oxide protection pipes are positioned in the external stainless steel protection pipes, the heating wire and the wiring rod are arranged at the periphery and are formed by splicing a plurality of sections, magnesium oxide crystal particles are filled in the magnesium oxide protection pipes, and the heating wire and the wiring rod are prevented from directly contacting the external stainless steel protection pipes.
After the magnesium oxide protection tube in the electric heater is installed and magnesium oxide particles are filled, the diameter of the external stainless steel protection sleeve is reduced through the pipe reducing machine, so that the inner wall of the outer sleeve is tightly attached to the outer wall of the magnesium oxide protection tube, and the electric heating wire and the wiring rod are prevented from being broken and damaged due to shaking.
The electric heater adopts flange connection at the splicing position.
Preferably, the electric heater is sealed by adopting high-temperature-resistant insulating silicone oil at the splicing position, and the flange gasket is a high-temperature-resistant alumina flange gasket, so that the difference change of the connecting position of the heater caused by splicing is reduced, the insulating and heat-insulating performance of the connecting position is enhanced, and the service life is effectively prolonged.
By adopting the technical scheme, the invention has the following technical effects:
1. the invention is a splicing electric heater with customizable length, simple processing and convenient transportation.
2. The invention can be spliced into the electric heater with any length through flange connection according to the actual treatment depth and technical requirements of soil in-situ thermal desorption, is flexible to use and is not limited by the depth of a complex polluted site.
3. The invention can be assembled and spliced in advance and then hoisted into a well by a crane. When mechanical equipment is not easy to enter and exit the area, the mechanical equipment can be flexibly adjusted on site, and is manually placed in a well and simultaneously assembled synchronously until the specified depth is reached.
4. According to the invention, the high-temperature-resistant alumina flange gasket is preferably selected at the joint, and sealing silicone oil is supplemented, so that the difference change of the joint of the heater caused by splicing is reduced, the insulating and heat-insulating properties of the joint are enhanced, and the service life is effectively prolonged.
Drawings
FIG. 1 is a schematic view of an electric heater unit structure of a spliceable electric heater according to the present invention;
FIG. 2 is a top view of the spliceable electric heater of the invention;
FIG. 3 is a schematic illustration of a spliceable electrical heater according to the invention;
fig. 4 is a schematic structural view of a spliceable electric heater according to the present invention.
In the figure: 1. a binding post; 2. a nut washer; 3. a ceramic lug; 4. a wire connecting rod; 5. an electric heating wire; 6. a magnesium oxide protection tube; 7. crystalline particles of magnesium oxide; 8. a terminal clamping groove; 9. a top connecting flange; 10. a bottom connecting flange; 11. sealing the top with silicone oil; 12. sealing silicone oil at the bottom; 13. a stainless steel protective sleeve; 14. bolt holes; 15. a high temperature resistant alumina flange gasket; 16. a binding post; 17. fastening a bolt; 18. and (5) tightening the nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings by way of examples of preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
Embodiments of the present invention are further described in accordance with the foregoing description of principles and with reference to fig. 1-2:
the invention provides a splicing electric heater for in-situ soil thermal desorption, which comprises a heating component and a splicing component, wherein the heating component comprises an external stainless steel protective sleeve 13, a wiring rod 4 in the sleeve, an electric heating wire 5 and a magnesium oxide protective tube 6; the splicing component comprises a wiring terminal 1 on the upper part of the electric heater, a nut gasket 2, a ceramic wiring terminal 3, a top connecting flange 9, a wiring terminal clamping groove 8 on the lower part and a bottom connecting flange 10.
Compared with the prior art, the device has the advantages of simple processing, convenient transportation, flexible use, easy installation, stable operation and the like.
As shown in figure 3, according to the invention, a binding post 1 or a binding post 16 on the upper part of one heater can be embedded into a binding post clamping groove 8 on the bottom of the other heater, a top connecting flange 9 and a bottom connecting flange 10 of the other heater are connected and fixed by a fastening bolt 17 and a fastening nut 18, and a high-temperature-resistant alumina flange gasket 15, top sealing silicone oil 11 and bottom sealing silicone oil 12 are arranged at the joint, so that the insulation property and the service life of the joint are effectively improved.
When the electric heater is used, the length of each electric heater can be designed according to actual engineering requirements or the conventional length can be directly used, the electric heaters which can meet the length required by engineering design are spliced by directly connecting the electric heaters with flanges on the site, and the electric heater is simple to process and flexible to use.
The following are examples of applications of the device of the invention:
according to the actual engineering needs, a plurality of spliced electric heaters with the length of 2m are designed and manufactured, after a polluted area is drilled by a small-sized drilling machine, the bottom of one heater is manually placed downwards into a well, and the top of the heater is supported by a support to enable a top connecting flange 9 to be 500mm higher than the ground surface. Firstly, the high-temperature-resistant alumina flange gasket 15 is placed on the top connecting flange 9, then the terminal clamping groove 8 at the bottom of the other heater is aligned to the terminal 1 of the top connecting flange 9, the top connecting flange 9 on the ground surface is aligned to the bolt hole 14 of the bottom connecting flange 10 of the other heater, and finally the fastening bolt 17 is placed and screwed by the fastening nut 18 to complete the splicing of the heaters. And (4) continuously lowering the spliced heater to a position where the top connecting flange 9 is 500mm higher than the ground surface, and repeating the splicing process through support until the specified depth is reached.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (7)
1. A splicing electric heater for in-situ soil thermal desorption is characterized by comprising a plurality of electric heater units, wherein the electric heater units are spliced with one another;
the electric heater unit comprises a heating part and splicing parts, wherein the splicing parts are arranged at two ends of the heating part, the heating part comprises a stainless steel protective sleeve, a wire connecting rod, a heating wire and a magnesium oxide protective tube, the heating wire is arranged at the inner side of the wire connecting rod and is connected with the wire connecting rod, and the magnesium oxide protective tube is arranged in the stainless steel protective tube and is arranged at the periphery of the heating wire and the wire connecting rod; splice the part and include terminal, nut gasket, ceramic connector lug, top flange, terminal draw-in groove and bottom flange, top flange and bottom flange set up the both ends at stainless steel protective case respectively, top flange's inboard is provided with the top and seals silicon oil, and bottom flange's inboard is provided with the bottom and seals silicon oil, be provided with the perforation on the flange of top, ceramic connector lug sets up on perforating, the terminal stick passes ceramic connector lug, the terminal is connected with the terminal stick and screws up fixedly through the nut gasket, the terminal draw-in groove sets up in bottom flange, and terminal draw-in groove outside-in recess sets up.
2. The splicing electric heater for soil in-situ thermal desorption as claimed in claim 1, wherein: the splicing part further comprises a high-temperature-resistant aluminum oxide flange gasket, the high-temperature-resistant aluminum oxide flange gasket is attached to the top connecting flange, and the high-temperature-resistant aluminum oxide flange gasket is arranged to be a round gasket and arranged on the outer side of the binding post.
3. The splicing electric heater for soil in-situ thermal desorption as claimed in claim 1, wherein: the top connecting flange and the bottom connecting flange are both provided with bolt holes, the bolt holes are provided with fastening bolts, and the top connecting flange of the electric heater unit and the bottom connecting flange of the other electric heater unit are screwed and fixed by arranging fastening nuts.
4. The splicing electric heater for soil in-situ thermal desorption as claimed in claim 1, wherein: the wiring rod in each electric heater unit is connected with the heating wire in series, and after the electric heater units are spliced with the electric heater units, the heating wires between the electric heater units are connected in parallel.
5. The splicing electric heater for soil in-situ thermal desorption as claimed in claim 1, wherein: the magnesium oxide protective tube is filled with magnesium oxide crystal particles, and the electric heating wire and the wire connecting rod are arranged without contacting the stainless steel protective sleeve.
6. The splicing electric heater for soil in-situ thermal desorption as claimed in claim 1, wherein: after the magnesium oxide protection tube in the electric heater unit is installed and filled with magnesium oxide particles, the diameter of the stainless steel protection sleeve is reduced through the pipe reducing machine, so that the inner wall of the outer sleeve is tightly attached to the outer wall of the magnesium oxide protection tube, and the magnesium oxide particles protect the electric heating wire and the wiring rod.
7. The splicing electric heater for soil in-situ thermal desorption as claimed in claim 1, wherein: the splicing part of the electric heater unit is sealed by adopting high-temperature-resistant insulating silicone oil, so that the insulating performance of the connecting part is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857931.6A CN110602814A (en) | 2019-09-11 | 2019-09-11 | Splicing electric heater for soil in-situ thermal desorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857931.6A CN110602814A (en) | 2019-09-11 | 2019-09-11 | Splicing electric heater for soil in-situ thermal desorption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110602814A true CN110602814A (en) | 2019-12-20 |
Family
ID=68858799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910857931.6A Pending CN110602814A (en) | 2019-09-11 | 2019-09-11 | Splicing electric heater for soil in-situ thermal desorption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110602814A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517621A (en) * | 2020-11-18 | 2021-03-19 | 吉林大学 | Heating pipe for in-situ thermal desorption additional heat device for polluted soil |
| CN112517622A (en) * | 2020-11-18 | 2021-03-19 | 吉林大学 | Contaminated soil strengthening in-situ thermal desorption heating device and method |
| CN113109075A (en) * | 2021-03-11 | 2021-07-13 | 广西博世科环保科技股份有限公司 | Sectional type sampling tube for soil in-situ thermal desorption and use method thereof |
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|---|---|---|---|---|
| KR19990022257U (en) * | 1999-03-26 | 1999-06-25 | 유광희 | Electric wet heater |
| CN204350333U (en) * | 2015-01-30 | 2015-05-20 | 天津大学 | Organic working medium high-temperature and pressure pipeline formula electric heater |
| CN108156679A (en) * | 2018-01-18 | 2018-06-12 | 无锡恒业电热电器有限公司 | A kind of combined type soil environment remediation electric heater |
| CN108235471A (en) * | 2018-01-29 | 2018-06-29 | 刘晓荣 | The overlength electrothermal tube and its processing method of a kind of soil remediation original position thermal desorption |
| CN109702004A (en) * | 2019-02-02 | 2019-05-03 | 广西博世科环保科技股份有限公司 | A kind of soil in-situ thermal desorption reparation electric heater unit |
| CN210781412U (en) * | 2019-09-11 | 2020-06-16 | 广西博世科环保科技股份有限公司 | Splicing electric heater for soil in-situ thermal desorption |
-
2019
- 2019-09-11 CN CN201910857931.6A patent/CN110602814A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990022257U (en) * | 1999-03-26 | 1999-06-25 | 유광희 | Electric wet heater |
| CN204350333U (en) * | 2015-01-30 | 2015-05-20 | 天津大学 | Organic working medium high-temperature and pressure pipeline formula electric heater |
| CN108156679A (en) * | 2018-01-18 | 2018-06-12 | 无锡恒业电热电器有限公司 | A kind of combined type soil environment remediation electric heater |
| CN108235471A (en) * | 2018-01-29 | 2018-06-29 | 刘晓荣 | The overlength electrothermal tube and its processing method of a kind of soil remediation original position thermal desorption |
| CN109702004A (en) * | 2019-02-02 | 2019-05-03 | 广西博世科环保科技股份有限公司 | A kind of soil in-situ thermal desorption reparation electric heater unit |
| CN210781412U (en) * | 2019-09-11 | 2020-06-16 | 广西博世科环保科技股份有限公司 | Splicing electric heater for soil in-situ thermal desorption |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517621A (en) * | 2020-11-18 | 2021-03-19 | 吉林大学 | Heating pipe for in-situ thermal desorption additional heat device for polluted soil |
| CN112517622A (en) * | 2020-11-18 | 2021-03-19 | 吉林大学 | Contaminated soil strengthening in-situ thermal desorption heating device and method |
| CN112517622B (en) * | 2020-11-18 | 2022-01-28 | 吉林大学 | Contaminated soil strengthening in-situ thermal desorption heating device and method |
| CN113109075A (en) * | 2021-03-11 | 2021-07-13 | 广西博世科环保科技股份有限公司 | Sectional type sampling tube for soil in-situ thermal desorption and use method thereof |
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