CN106424111A - Soil restoration device and method - Google Patents
Soil restoration device and method Download PDFInfo
- Publication number
- CN106424111A CN106424111A CN201610865296.2A CN201610865296A CN106424111A CN 106424111 A CN106424111 A CN 106424111A CN 201610865296 A CN201610865296 A CN 201610865296A CN 106424111 A CN106424111 A CN 106424111A
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- air
- heat exchange
- cyclone cylinder
- granule
- grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
Abstract
The invention discloses a soil restoration device which comprises a suspension reverse-flow pre-desorber, a strengthening rotational-flow suspension thermal desorption furnace, a finished product cooling unit, a material treatment unit, a tail gas final combustion chamber and an air reverse-flow strengthening heat exchanger, wherein the suspension reverse-flow pre-desorber comprises a first cyclone, a second cyclone and a third cyclone; the finished product cooling unit comprises a roller cooler; the material treatment unit comprises a grinding drying thermal desorber which is used for drying and grinding soil, and carrying out desorption operation on pollutants in soil through air flow from the first cyclone; the tail gas final combustion chamber is used for carrying out incineration pyrolysis on waste gas generated by desorption; the grinding drying thermal desorber is used for screening particles which have qualified particle diameters after being grinded; and gas flow in the strengthening rotational-flow suspension thermal desorption furnace is used for decelerating and dispersing particles, so that the particles are suspended in the furnace and move upwards, and pyrolysis and desorption on pollutants are accelerated. The invention further provides a soil restoration method.
Description
Technical field
The present invention relates to a kind of soil restoring device and method, more particularly to a kind of reinforcing adverse current suspension thermal desorption soil are repaiied
Apparatus for coating and method.
Background technology
Soil remediation is referred to using the pollution in physics, chemical and biological method transfer, absorption, degraded and conversion soil
Thing so as to which concentration is reduced to acceptable level, or poisonous and hazardous pollutant are converted into harmless material.Existing physics is repaiied
Recovering technology energy expenditure is high, processing cost is big and needs special equipment, and it can only process the soil pollution of small area；Chemistry
The high and risk that there is secondary pollution of method processing cost；Biological restoration process is slow, and site condition and environmental factorss are to repairing
Efficiency impact is larger, and therefore repairing effect is unstable；The environmental condition of bioremediation technology is harsh, repairing efficiency is long, but has
The feature of secondary pollution is not produced.
Content of the invention
In view of more than, it is necessary to offer is a kind of efficiently, energy consumption is low and during reparation, do not allow destructible soil constituent to tie
The soil restoring device of structure and method.
A kind of soil restoring device, single including the pre- desorption device of adverse current that suspends, rotational flow strengthening suspension thermal desorption stove, finished product cooling
Unit, material processing unit, tail gas fire room and air inversion enhanced heat exchange device eventually, and countercurrently pre- desorption device includes the first rotation for the suspension
Air duct, the second cyclone cylinder and the 3rd cyclone cylinder, the finished product cooling unit includes cylinder cooler, the material processing unit bag
Include grinding and thermal desorptor is dried, the grinding is dried thermal desorptor and soil dried and is ground, from first whirlwind
The air-flow of cylinder carries out desorption manipulation to the pollutant in soil, and the waste gas for being desorbed generation is carried out burning heat in combustion room by the tail gas eventually
Solution, the air inversion enhanced heat exchange device carries out heat exchange to the surrounding air and the waste gas through burning that enter its lower temperature,
The grinding is dried the thermal desorptor granule qualified to granularity after grinding and is screened, from second cyclone cylinder and the 3rd rotation
The air-flow of air duct carries out counter current heat exchange with granule, and the air-flow in the rotational flow strengthening suspension thermal desorption stove slows down to granule
With dispersion cause granule be suspended in stove and move upwards, accelerate pyrolysis and pollutant desorption, the cylinder cooler to
Grain is exported after being cooled down.
A kind of restorative procedure that the soil containing pollutant is repaired using above-mentioned soil restoring device, the reparation side
Method is comprised the following steps：
By grinding drying thermal desorptor, soil is dried and ground, and by the air-flow pair from the first cyclone cylinder
Pollutant in soil carry out desorption manipulation；
Waste gas is carried out in combustion room eventually by burning pyrolysis by tail gas；
Heat is carried out to the surrounding air and the waste gas through burning that enter its lower temperature by air inversion enhanced heat exchange device
Exchange；
Screened by the qualified granule of granularity after the grinding dries thermal desorptor to grinding, and pass through from second
The air-flow of cyclone cylinder and the 3rd cyclone cylinder carries out entering rotational flow strengthening suspension thermal desorption stove after counter current heat exchange with granule；
By the air-flow in the rotational flow strengthening suspension thermal desorption stove, granule is slowed down and disperseed so that granule suspends
Move in stove and upwards, accelerate the desorption of pyrolysis and pollutant, the granule of pyrolysis and desorption enters via the 3rd cyclone cylinder
Enter cylinder cooler；And
Export after being cooled down to granule by the cylinder cooler.
Compared to prior art, soil restoring device of the present invention and method are dried thermal desorptor by grinding and soil are carried out
Dry and grind, and desorption manipulation is carried out to the pollutant in soil by the air-flow from the first cyclone cylinder；By the powder
Mill is dried the thermal desorptor granule qualified to granularity after grinding and is screened, and passes through from the second cyclone cylinder and the 3rd cyclone cylinder
Air-flow carry out counter current heat exchange with granule；And by the air-flow in rotational flow strengthening suspension thermal desorption stove to granule carry out slow down and
Dispersion causes granule to be suspended in stove and move upwards, accelerates the desorption of pyrolysis and pollutant, improves thermal desorption rate and reduce
Energy consumption is low, and does not allow destructible soil constituent structure during reparation.
Description of the drawings
Fig. 1 is the structure chart of a better embodiment of soil restoring device of the present invention.
Fig. 2 is the flow chart of a better embodiment of soil remediation method of the present invention.
Specific embodiment
Fig. 1 is refer to, a kind of better embodiment of soil restoring device of the present invention includes the pre- desorption device of suspension adverse current
100th, a rotational flow strengthening suspension thermal desorption stove 200, a finished product cooling unit 300, a material processing unit 400, a pickling tower
500th, a tail gas fires room 600, an air inversion enhanced heat exchange device 700 and a product handling system unit 800 eventually.
The pre- desorption device 100 of adverse current that suspends includes one first cyclone cylinder C1, one second cyclone cylinder C2 and one the 3rd whirlwind
Cylinder C3.Between the second cyclone cylinder C2 and the first cyclone cylinder C1, the 3rd cyclone cylinder C3 and the second cyclone cylinder C2, described strong
Change and be cascaded by heat exchange airduct between cyclone suspension thermal desorption stove 200 and the 3rd cyclone cylinder C3 respectively.The suspension is inverse
Flow pre- desorption device 100 to be not limited to include three cyclone cylinders, also can be made up of the cyclone cylinder of more than three.Between multiple cyclone cylinders
The connected mode of heat exchange airduct is not limited to series system, and the mode that connection in series-parallel mixing may also be employed connects.In the heat exchange airduct
Design wind speed be 20～22 meter per seconds.The heat exchange airduct may be designed as straight tube or bend pipe.
The finished product cooling unit 300 includes a cylinder cooler 310 and one the 4th cyclone cylinder C4.The cylinder cooler
310 have 2%～5% gradient when mounted along discharge direction.Design wind speed in the cylinder cooler 310 is 0.5
～1.2 meter per seconds.The cylinder cooler 310 and the 4th cyclone cylinder C4 can be used simultaneously, also individually can be used.
The material processing unit 400 includes that a grinding dries thermal desorptor 410, a bag filter 420 and raw material
Storehouse 430.The grinding is dried to crush in thermal desorptor 410 and is 80～200 microns with grind size.The grinding dries thermal desorption
After drying in device 410, moisture is less than 15%.The grinding is dried thermal desorptor 410 and adopts vertical roller grinder grinding process, but
Vertical roller grinder grinding process is not limited to, roll squeezer grinding process or ball milling grinding process may also be employed.
The tail gas fires in room 600 eventually and is provided with denitrification apparatus.
Argillization or Granulation Equipments are provided with the product handling system unit 800.
One first blower fan is set between the air inversion enhanced heat exchange device 700 and rotational flow strengthening suspension thermal desorption stove 200
910.The first cyclone cylinder C1 and grinding are dried between thermal desorptor 410 and arrange one second blower fan 920.The pickling tower 500
And one arrange one the 3rd blower fan 930 between chimney 900.The bag filter 420 and tail gas arrange one the eventually between combustion room 600
Four fan device 940.Between the raw material silo 430 and the pre- desorption device 100 of suspension adverse current, an elevator 950 is set.
Fig. 2 is refer to, is the restorative procedure that the soil containing pollutant is repaired using above-mentioned soil restoring device
Flow chart, the restorative procedure comprises the following steps：
S201：Dry the soil after thermal desorptor 410 pairs is weighed to be dried and ground by the grinding, and by coming
Air-flow from 250～300 degrees Celsius of the first cyclone cylinder C1 carries out desorption manipulation to the pollutant in soil.
S202：Under the suction function of the four fan device 940, generation will be desorbed by the bag filter 420
Waste gas enters tail gas combustion room 600 eventually；
S203：Waste gas is carried out in combustion room 600 eventually by burning pyrolysis by the tail gas, in the negative pressure of the 3rd blower fan 930
Under effect, the waste gas through burning flows through the air inversion enhanced heat exchange device 700 and to transfer heat to the entrance air inverse
The surrounding air of 700 lower temperature of stream enhanced heat exchange device,
Under the suction function of second blower fan 920, the surrounding air of heat is absorbed via first blower fan 910
The rotational flow strengthening suspension thermal desorption stove 200 is entered for burning in stove and eddy flow flowing,
The surrounding air of waste gas and lower temperature through burning enters the direction phase of the air inversion enhanced heat exchange device 700
Instead, but be not limited to conversely, also tiltable intersecting or vertical；
S204：It is rinsed absorbing by 500 pairs of waste gas for carrying out heat transfer of the pickling tower,
Waste gas through burning pyrolysis or oxidation produces the sour gas such as CO2, SO2, and the pickling tower 500 is to CO2, SO2 etc.
Sour gas is rinsed absorbing, and under the suction function of the 3rd blower fan 930, the tail gas after process is via the chimney
900 enter air；
S205：By after the qualified granule of granularity after the grinding dries the grinding of thermal desorptor 410 pairs is screened through by
The bag filter 420 is sent into raw material silo 430 and is stored；
S206：Granule in raw material silo 430 is promoted to by the first cyclone cylinder C1 and second by the elevator 950
Heat exchange airduct between cyclone cylinder C2, boosted after granule slow down and fully dispersed in the heat exchange airduct, and with described second
The high temperature gas flow in 400～450 degrees Celsius of cyclone cylinder C2 exit is entered through the first cyclone cylinder C1 after carrying out counter current heat exchange
Heat exchange airduct between second cyclone cylinder C2 and the 3rd cyclone cylinder C3, slows down in the heat exchange airduct and fully dispersed and with described the
The high temperature gas flow in three 550～600 degrees Celsius of cyclone cylinder C3 exits enters through the second cyclone cylinder C2 after carrying out counter current heat exchange
Enter rotational flow strengthening suspension thermal desorption stove 200；
S207：By the high velocity air of 200 bottom of rotational flow strengthening suspension thermal desorption stove, 28～30 meter per second, granule is entered
Row is slowed down and with the high-speed rotational of 20～25 meter per seconds, granule is suspended in stove and is transported along combustion flue spiral upwards after fully dispersed
Dynamic, accelerate the desorption of pyrolysis and pollutant when 800～850 degrees Celsius of flame zone in granule moves to stove, completely pyrolysis and
The granule of desorption enters the cylinder cooler 310 via heat exchange airduct and the 3rd cyclone cylinder C3；
S208：Granule is turned to the product handling system by the gradient for having 2%～5% by the cylinder cooler 310
Unit 800, under the suction function of second blower fan 920, enters the surrounding air of 310 lower temperature of cylinder cooler
Flowing through and cool down granule along the direction of motion contrary with granule, the surrounding air of heat is absorbed via the 4th cyclone cylinder C4
The bottom of the rotational flow strengthening suspension thermal desorption stove 200 is entered so that the high velocity air of 28～30 meter per seconds is supplied, cold by the cylinder
But in machine 310 wind speed be 0.5～1.2 meter per second the partial particulate taken away of air-flow enter via the 4th cyclone cylinder C4 described
Product handling system unit 800；
S209：It is delivered at stacking after the product handling system unit 800 carries out argillization to granule or pelletize is processed, enters
And carry out soil and backfill and complete soil remediation.
By under CFD (Computational Fluid Dynamics, computational fluid dynamicses) computed in software suspended state
Gas-solid heat exchange efficiency, it can be deduced that soil particle is respectively in the first cyclone cylinder C1, the second cyclone cylinder C2 and the 3rd whirlwind
Dust-collecting efficiency and heat exchange efficiency in cylinder C3 is as shown in the table：
As can be seen from the above table, after using soil restoring device of the present invention and method, dust-collecting efficiency under suspended state and change
The thermal efficiency is all more than 90%, while fuel consumption reduces 30～40%.
Soil restoring device of the present invention and method are dried to soil by grinding drying thermal desorptor 410 and are ground,
And desorption manipulation is carried out to the pollutant in soil by the air-flow from the first cyclone cylinder C1；Heat is dried by the grinding de-
After 410 pairs of grindings of adnexa, the qualified granule of granularity is screened, and by from the second cyclone cylinder C2's and the 3rd cyclone cylinder C3
Air-flow carries out counter current heat exchange with granule；And by the air-flow in rotational flow strengthening suspension thermal desorption stove 200, granule is slowed down
So that granule is suspended in stove and moves upwards with dispersion, accelerate the desorption of pyrolysis and pollutant, improve thermal desorption rate and drop
Low energy consumption is low, and does not allow destructible soil constituent structure during reparation.
Claims (10)
1. a kind of soil restoring device, single including the pre- desorption device of adverse current that suspends, rotational flow strengthening suspension thermal desorption stove, finished product cooling
Unit, material processing unit, tail gas fire room and air inversion enhanced heat exchange device eventually, it is characterised in that：The adverse current that suspends is pre- to be desorbed
Device includes the first cyclone cylinder, the second cyclone cylinder and the 3rd cyclone cylinder, and the finished product cooling unit includes cylinder cooler, the thing
Material processing unit includes that grinding dries thermal desorptor, and the grinding is dried thermal desorptor and soil dried and is ground, from
The air-flow of first cyclone cylinder carries out desorption manipulation to the pollutant in soil, and combustion room will be desorbed the useless of generation to the tail gas eventually
Gas carries out burning pyrolysis, the air inversion enhanced heat exchange device to enter its lower temperature surrounding air and through burn waste gas
Heat exchange is carried out, the grinding is dried the thermal desorptor granule qualified to granularity after grinding and screened, from the described second rotation
The air-flow of air duct and the 3rd cyclone cylinder carries out counter current heat exchange, the air-flow pair in the rotational flow strengthening suspension thermal desorption stove with granule
Granule is slowed down and is disperseed so that granule is suspended in stove and moves upwards, to accelerate the desorption of pyrolysis and pollutant, the rolling
Cylinder cooler is exported after cooling down to granule.
2. soil restoring device as claimed in claim 1, it is characterised in that：Second cyclone cylinder and the first cyclone cylinder, institute
State between the 3rd cyclone cylinder and the second cyclone cylinder, pass through between the rotational flow strengthening suspension thermal desorption stove and the 3rd cyclone cylinder respectively
Heat exchange airduct is cascaded.
3. soil restoring device as claimed in claim 2, it is characterised in that：The finished product cooling unit also includes the 4th whirlwind
Cylinder, is provided with the first blower fan, first rotation between the air inversion enhanced heat exchange device and rotational flow strengthening suspension thermal desorption stove
Air duct and grinding are dried between thermal desorptor and are provided with the second blower fan, under the suction function of second blower fan, absorb heat
The surrounding air of amount enters the rotational flow strengthening suspension thermal desorption stove for burning in stove and air-flow flowing via first blower fan,
Under the suction function of second blower fan, the surrounding air for entering the cylinder cooler lower temperature is flowed through and is cooled down
Grain, the surrounding air for absorbing heat enters the rotational flow strengthening suspension thermal desorption stove to supply gas via the 4th cyclone cylinder
Stream.
4. soil restoring device as claimed in claim 3, it is characterised in that：Design wind speed in the heat exchange airduct be 20～
22 meter per seconds, the cylinder cooler has 2%～5% gradient when mounted along discharge direction, in the cylinder cooler
Design wind speed is 0.5～1.2 meter per second, and it is 80～200 microns, institute that the grinding dries crushing and grind size in thermal desorptor
State moisture after grinding dries the interior drying of thermal desorptor and 15% is less than, the gas flow temperature in the second cyclone cylinder exit is 400
～450 degrees Celsius, the gas flow temperature in the 3rd cyclone cylinder exit is 550～600 degrees Celsius, and the rotational flow strengthening suspends hot
The wind speed of desorption furnace bottom air-flow is 28～30 meter per seconds, the wind speed 20～25 of the rotational flow strengthening suspension thermal desorption gas stream in the stove
Meter per second, the gas flow temperature in the rotational flow strengthening suspension thermal desorption stove is that the adverse current that suspends 800～850 degrees Celsius, described is pre- to be desorbed
Device is not limited to include three cyclone cylinders, also can be made up of the cyclone cylinder of more than three, heat exchange airduct between multiple cyclone cylinders
Connected mode is not limited to series system, and the mode that connection in series-parallel mixing may also be employed connects, and the grinding dries thermal desorptor employing
Vertical roller grinder grinding process, but vertical roller grinder grinding process is not limited to, roll squeezer grinding process or ball milling grinding may also be employed
Technique, the heat exchange airduct may be designed as straight tube or bend pipe, and the waste gas through burning and the surrounding air entrance of lower temperature are described
Air inversion enhanced heat exchange device in opposite direction, but be not limited to conversely, also tiltable intersecting or vertical, the cylinder cooler
Can use simultaneously with the 4th cyclone cylinder, also individually can use.
5. soil restoring device as claimed in claim 4, it is characterised in that：The soil restoring device also include pickling tower and
Product handling system unit, the tail gas is provided with out of stock device in combustion interior eventually, is provided with argillization or makes in the product handling system unit
Grain equipment, the material processing unit also includes dust-precipitator and raw material silo, is provided with the 3rd wind between the pickling tower and chimney
Machine, the dust-precipitator and tail gas are provided with four fan device between combustion room eventually, between the raw material silo and the pre- desorption device of suspension adverse current
Elevator is provided with, the pickling tower is rinsed absorbing to the waste gas for carrying out heat transfer, in the negative of the 3rd blower fan
Under pressure effect, the tail gas after process enters air via the chimney, and the product handling system unit carries out argillization or makes to granule
Grain is delivered at stacking after processing, the grinding dry after the thermal desorptor granule qualified to granularity after grinding is screened through by
The dust-precipitator is sent into raw material silo and is stored, the elevator by the granule in raw material silo be promoted to first cyclone cylinder and
Heat exchange airduct between second cyclone cylinder, under the suction function of the 3rd blower fan, the air inversion enhanced heat exchange device pair
Entering the surrounding air of its lower temperature and the waste gas through burning carries out heat exchange, under the suction function of the four fan device,
The waste gas for being desorbed generation is entered tail gas combustion room eventually by the dust-precipitator.
6. a kind of restorative procedure that the soil containing pollutant is repaired using above-mentioned soil restoring device, the restorative procedure
Comprise the following steps：By grinding drying thermal desorptor, soil is dried and ground, and by from the first cyclone cylinder
Air-flow carries out desorption manipulation to the pollutant in soil；Waste gas is carried out in combustion room eventually by burning pyrolysis by tail gas；By air
Adverse current enhanced heat exchange device carries out heat exchange to the surrounding air and the waste gas through burning that enter its lower temperature；By the powder
Mill is dried the thermal desorptor granule qualified to granularity after grinding and is screened, and passes through from the second cyclone cylinder and the 3rd cyclone cylinder
Air-flow and granule carry out after counter current heat exchange, entering rotational flow strengthening suspension thermal desorption stove；Suspended by the rotational flow strengthening hot
Air-flow in desorption stove is slowed down to granule and is disperseed so that granule is suspended in stove and moves upwards, is accelerated pyrolysis and is polluted
The desorption of thing, the granule of pyrolysis and desorption enters cylinder cooler via the 3rd cyclone cylinder；And cooled down by the cylinder
Machine is exported after cooling down to granule.
7. soil remediation method as claimed in claim 6, it is characterised in that：Under the suction function of the second blower fan, absorb
The surrounding air of heat enters the rotational flow strengthening suspension thermal desorption stove via the first blower fan and flows for burning in stove and air-flow,
Under the suction function of the 3rd blower fan, the waste gas through burning flows through the air inversion enhanced heat exchange device and transfers heat to entrance
The surrounding air of the air inversion enhanced heat exchange device lower temperature, under the suction function of four fan device, will by dust-precipitator
The waste gas that desorption is produced enters tail gas combustion room eventually.
8. soil remediation method as claimed in claim 7, it is characterised in that：Also include by pickling tower to carrying out heat biography
The waste gas that passs is rinsed absorbing, and under the suction function of the 3rd blower fan, the tail gas after process is entered via the chimney
Air；By through being sent by the dust-precipitator after the qualified granule of granularity after the grinding dries thermal desorptor to grinding is screened
Enter raw material silo to be stored；And the granule in raw material silo is promoted to by first cyclone cylinder and the second cyclone cylinder by elevator
Between heat exchange airduct, boosted after granule slow down and disperse in the heat exchange airduct, and with from second cyclone cylinder
The heat exchange airduct that air-flow is entered between the second cyclone cylinder and the 3rd cyclone cylinder through first cyclone cylinder after carrying out counter current heat exchange,
Slow down in heat exchange airduct and disperse.
9. soil remediation method as claimed in claim 8, it is characterised in that：Also include to have by the cylinder cooler
Granule is turned to product handling system unit by gradient, under the suction function of second blower fan, enters the cylinder cooler relatively
The surrounding air of low temperature is flowed through and cools down granule along the direction of motion contrary with granule, absorb the surrounding air of heat via
4th cyclone cylinder enters the bottom of the rotational flow strengthening suspension thermal desorption stove to supply air-flow, by the cylinder cooler
The partial particulate taken away of air-flow enter the product handling system unit via the 4th cyclone cylinder.
10. soil remediation method as claimed in claim 8, it is characterised in that：Also include by the product handling system unit pair
Granule carries out being delivered at stacking after argillization or pelletize are processed, and then carries out soil and backfill and complete soil remediation.
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| CN201610865296.2A CN106424111B (en) | 2016-09-29 | 2016-09-29 | Soil remediation device and method |
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|---|---|---|---|
| CN201610865296.2A CN106424111B (en) | 2016-09-29 | 2016-09-29 | Soil remediation device and method |
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Cited By (7)
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| CN107520247A (en) * | 2017-09-28 | 2017-12-29 | 中国地质科学院水文地质环境地质研究所 | A kind of device and its application method that soil pollutant is removed using hot-air stripping |
| CN107617633A (en) * | 2017-09-26 | 2018-01-23 | 航天环境工程有限公司 | A kind of organic material contaminated soil movable type continuous cyclone thermal desorption processing system and application |
| CN107639110A (en) * | 2017-10-20 | 2018-01-30 | 湖南永清机械制造有限公司 | A kind of device for repairing polluted soil |
| CN107695093A (en) * | 2017-11-16 | 2018-02-16 | 天津市环境保护科学研究院 | Pretreatment unit and soil in-situ repair system |
| CN108870424A (en) * | 2018-07-17 | 2018-11-23 | 长沙奥邦环保实业有限公司 | A kind of soil restoring device and its restorative procedure |
| CN109174947A (en) * | 2018-09-12 | 2019-01-11 | 上海华畅环保设备发展有限公司 | Oil-contaminated soil restorative procedure and device |
| CN109675921A (en) * | 2019-01-11 | 2019-04-26 | 浙江亿可利环保科技有限公司 | The continuous direct thermal desorption system of organic polluted soil and its thermal desorption method |
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| CN109174947A (en) * | 2018-09-12 | 2019-01-11 | 上海华畅环保设备发展有限公司 | Oil-contaminated soil restorative procedure and device |
| CN109174947B (en) * | 2018-09-12 | 2021-02-05 | 上海华畅环保设备发展有限公司 | Method and device for restoring oil-containing soil |
| CN109675921A (en) * | 2019-01-11 | 2019-04-26 | 浙江亿可利环保科技有限公司 | The continuous direct thermal desorption system of organic polluted soil and its thermal desorption method |
| CN109675921B (en) * | 2019-01-11 | 2023-09-05 | 浙江亿可利环保科技有限公司 | Continuous organic contaminated soil direct thermal desorption system and thermal desorption method thereof |
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