CN207103409U - A kind of heat strengthens gas phase extraction stain soil restoring device - Google Patents
A kind of heat strengthens gas phase extraction stain soil restoring device Download PDFInfo
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- CN207103409U CN207103409U CN201720906449.3U CN201720906449U CN207103409U CN 207103409 U CN207103409 U CN 207103409U CN 201720906449 U CN201720906449 U CN 201720906449U CN 207103409 U CN207103409 U CN 207103409U
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Abstract
The utility model discloses a kind of heat to strengthen gas phase extraction stain soil restoring device, belongs to field of environment protection equipment.The device includes the gas phase extraction device of several independent operatings, and the air lift system being made up of devices such as valve, pipeline, condenser, gas-liquid separator, dust arrester, pressure gauge, vavuum pump and absorbent charcoal adsorber and liquid waste treating apparatus.The tank surface of gas phase extraction device is mainly made up of heat resistance layer, refractory layer, heat-insulation layer and rain-proof layer of cloth.The utility model solves insufficient present in traditional restorative procedure, it is particularly possible to efficiently tackles sudden soil pollution event, the rupture of leakage, oil pipeline such as oil truck, has good mobility.
Description
Technical field
Field of environment protection equipment is the utility model is related to, more particularly to contaminated soil remediation technology, especially a kind of heat is strong
Change gas phase extraction stain soil restoring device.
Background technology
Soil is nature for the survival of mankind as the basis of industrial and agricultural production and the important composition key element of environmental key-element
One of resource, in environment about 90% pollutant is received.With the development of global industry process, environmental pollution accident and people
Body Health cost event is also happened occasionally, and the volatility (VOCs) of chemical enterprise (especially petroleum industry) discharge and half is volatilized
Property (SVOCs) is particularly acute.At present, volatile organic contaminant has become most universal and most prominent in industrial sites soil
One of pollutant.The particularly generation of Sudden Pollution Accident, rupture, the volatilization of leakage, petroleum pipeline such as oil storage tank
Property organic matter spills accident, and different degrees of pollution can be all caused to soil and groundwater etc..If pollutant remains in soil
In earth, bigger harm can be further brought to water body, air and food and health.
At present, the restorative procedure for volatile organic contaminant in soil mainly has chemical remediation, biological prosthetic and thing
Reason reparation etc..Chemical remediation mainly includes oxide reduction techniques and chemical leaching technology, it is biological prosthetic mainly using microorganism and
Plant is degraded to pollutant, and peripheral doses mainly include soil vapor extraction technology and thermal desorption technology.Gaseous phase of soil
A kind of soil in-situ that extracting (Soil Vapor Extraction, SVE) begins at middle and later periods the 1980s repairs skill
Art, its principle are to remove volatile organic matter in unsaturated soil using physical method, and producing negative pressure by vacuum equipment drives
Air entrainment pollutant to processing unit focuses on.In practice, gas phase extraction effect is easily by soil characteristic, mesh
Mark the influence of the factors such as pollutant characteristic, environment temperature.Therefore, gas phase extraction technique also tends to and hot reinforcement technique, biological skill
Art etc. combines, to strengthen the repairing effect of gas phase extracting.Wherein, hot reinforcement technique to soil mainly by inputting heat to improve
The soil moisture, strengthen the removal to heavy nonaqueous phase liquid (DNPLs) component.According to the difference of mode of heating, the technology can divide
For resistance heating, the injection of steam/heat air, heat transfer heating and electromagnetic wave heating etc..
The A of Chinese patent CN 105499263 disclose a kind of hot reinforced soil gas phase extraction system.The system includes heating
System, extraction system and pending soil heap body, heated using heat caused by solar energy to soil, enable organic pollution
More effectively it is able to volatilize from soil pollution medium and separates；But the dependence of the system external circle environment is larger, if
Continuous rainy weather is met, heating effect can have a greatly reduced quality, and be unfavorable for the reparation of contaminated soil.Chinese patent CN 103447291
B discloses a kind of chlorobenzene contaminated soil and strengthens gas phase extracting restorative procedure.This method includes multiple with equilateral triangle or square
Heating extractor, condensing unit, gas-liquid separator and vavuum pump of arrangement etc., the reparation of chlorobenzene contaminated soil is imitated in the short time
Fruit is obvious, and pollutants removal rate is high, but effect is easily influenceed that (such as soil stickiness is high, conducts heat by soil characteristic etc.
Effect is poor).The A of Chinese patent CN 102513347 disclose a kind of in-situ heat and strengthen the technology governance dirt of combination soil vapor extraction
Contaminate the method for soil.This method disposes heater portion by the heated well in Polluted area formation certain forms in heated well
Part, and install sleeve pipe, catalyst filling is to accelerate pollutant pyrolytic into simple small-molecule substance in sleeve pipe.This method
There is preferable treatment effect to pollutant, but extraction device cost is high, it is more difficult to promote.
The content of the invention
Technology of the present utility model solves problem：Overcome the shortcomings of conventional gas phase extraction technique, the main 1. gas phase that includes is taken out
Carry that device land seizure area is big, and utilization rate is not high.It is especially more prominent in the nervous city of land used；2. treatment effect is easily by soil
The influence of earth characteristic, because mound volume is big, although there will still likely be part soil remediation effect by pretreatments such as broken, screenings
Fruit is undesirable；3. most gas phase extractors are difficult to recycle, due to the difference of each rehablitation project concrete condition, extractor
It must redesign and use；4. most of gas phase extraction systems are difficult to the related sudden soil pollution event of timely efficient process,
In the early stage with secondary pollution can be caused in transportation.The utility model aims to provide a kind of heat and strengthens gas phase extraction stain soil
Prosthetic device, solve the above problems.
Concrete technical scheme is as follows used by the utility model：
Heat strengthens gas phase extraction stain soil restoring device, and it includes several box gas phase extraction devices, Mei Geqi
If being provided with the inner chamber of phase extraction device for promoting cross-ventilated fan and dried layer screen cloth, it is used to place above screen cloth
Soil heap body to be repaired；The shell of gas phase extraction device is followed successively by heat resistance layer, refractory layer, heat-insulation layer and prevented from inside to outside
Water layer；The top of gas phase extraction device is provided with the top cover of opening and closing type, and a gas outlet, gas outlet are offered in its sidewall shell
On covered with filter screen；The gas outlet of each gas phase extraction device is all connected with extracting branch pipe, each to extract branch pipe by crossover sub simultaneously
Extracting supervisor is coupled to, extracting supervisor feeds gas into condenser, gas-liquid separator, dust arrester, absorbent charcoal adsorber successively
Afterwards, most tail gas is discharged from gas discharge outlet at last；Total valve is equipped with extracting supervisor between crossover sub and condenser, is extracted
Supervisor provides negative-pressure ward power by vavuum pump, and pressure gauge is connected on the extracting supervisor between dust arrester and vavuum pump；Gas-liquid
The bottom liquid of separator is connected to liquid waste treating apparatus by pipeline.
Preferably, described gas outlet can open and close type closure by rubber valve.
Preferably, multilayer dirt filtrating screen is provided with described dust arrester, for filtering the dust in gas coming through.
Preferably, having adding thermal resistance according to U-shaped disk in described heat resistance layer, adding thermal resistance is connected to temperature control circuit
In, for controlling the heating-up temperature inside gas phase extraction device.
Preferably, described screen cloth is combined in complex by the screen frame of bottom and the thin grid on top, screen frame is used
In support top weight, and thin grid is used to prevent soil particle from dropping while provide ventilated environment for the soil above it.
Preferably, the base of described gas phase extraction device is provided with the structure being engaged with fork truck, in order to fork truck
Carry.
It is good that the utility model provides a kind of repairing effect to volatility organic polluted soil, and space availability ratio is high,
Simple left-hand seat is operated, and the heat that can be recycled strengthens gas phase extraction device, solves deficiency present in traditional restorative procedure,
Sudden soil pollution event especially can be efficiently tackled, the rupture of leakage, oil pipeline such as oil truck, there is good machine
Dynamic property.
Brief description of the drawings
The utility model is further illustrated with reference to refer to the attached drawing.
Fig. 1 is the schematic diagram of gas phase extraction device in the utility model；
Fig. 2 is the left view cross-sectional view of gas phase extraction device in the utility model；
Fig. 3 is that heat strengthens the method schematic diagram that gas phase extracts repairing polluted soil in the utility model；
Fig. 4 is the schematic diagram that adding thermal resistance arranges in the utility model；
Fig. 5 is the schematic diagram of gas phase extraction device screen cloth in the utility model；
In figure：Gas phase extraction device 1, gas outlet 2, total valve 3, condenser 4, gas-liquid separator 5, dust arrester 6, pressure
Table 7, vavuum pump 8, absorbent charcoal adsorber 9, gas discharge outlet 10, extracting supervisor 11, liquid waste treating apparatus 12, adding thermal resistance
13rd, latch 14, hasp 15, base 16, heat resistance layer 17, refractory layer 18, heat-insulation layer 19, waterproof layer 20, blower fan 21, soil heap
Body 22, support 23, screen cloth 24, screen frame 25, thin grid 26, filter screen 27, rubber valve 28, extracting branch pipe 29, crossover sub
30。
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
In the utility model, pending contaminated soil heap body refers in particular to mainly contain volatility and half volatile organic contamination
The contaminated soil of thing, pollutant include alkanes, aromatic hydrocarbons, esters, aldehydes etc., common are benzene,toluene,xylene, styrene,
Trichloro ethylene, chloroform etc..
According to the concrete condition of contaminated soil, it is necessary to be pre-processed to it, but specific pretreatment process can be according to reality
Need to be set.The soil pollution as caused by unexpected incidents (rupture of leakage, oil pipeline such as oil truck etc.), then directly
Connect and handled using gas phase extraction device, avoid pollutant from entering air and water body；Remaining contaminated soil can be in advance to soil
Earth heap body carries out row processing again after broken and desiccation.
In the present embodiment, the casing orientation to gas phase extraction device be expressed as " on ", " under ", "left", "right", " preceding " and
" rear ".Specifically, it is referred to Fig. 1 page.Wherein, fan is located at left side (not shown), gas outlet, rubber valve 28
It is located at the right side with temperature control circuit, adding thermal resistance is located above, following, front and back (being located at enclosure interior).
The implementation that heat in the present embodiment strengthens gas phase extraction stain soil restoring device is described in detail below.
Heat, which strengthens gas phase extraction stain soil restoring device, includes several gas phase extraction devices 1 as shown in Figure 1.Gas phase
Extraction device 1 is set as case structure, and the base 16 of its bottom is provided with the list structure being engaged with fork truck, in order to which fork truck is removed
Fortune.The specific internal structure of gas phase extraction device 1 is as shown in Fig. 2 the shell of gas phase extraction device 1 is followed successively by heating from inside to outside
Resistive layer 17, refractory layer 18, heat-insulation layer 19 and waterproof layer 20.As shown in figure 4, there is heating according to U-shaped disk in heat resistance layer 17
Resistance 13, adding thermal resistance 13 are equably laid in the heat resistance layer 17 in upper and lower, forward and backward four faces, and full side is carried out to soil
The heating of position.The setting of refractory layer 18 and heat-insulation layer 19 can prevent heat to be lost to external environment condition, be advantageous to cost-effective.Add
Thermal resistance 13 is connected in temperature control circuit, for controlling the heating-up temperature inside gas phase extraction device 1, makes whole gas phase extracting dress
The certain temperature of 1 maintenance is put, as temperature is too high, adding thermal resistance 13 does not work；As temperature is too low, adding thermal resistance 13 is resumed work.
Waterproof layer 20 plays a part of rain-proof to gas phase extraction device 1.
It is provided with the inner chamber of each gas phase extraction device 1 for promoting cross-ventilated fan 21, fan 21 persistently rouses
Wind, enable the whole thermally equivalent of gas phase extraction device 1.3 layers of screen cloth 24 are also equipped with inner chamber, the bottom of screen cloth 24 passes through strip
Cunning Troffer 23 be supported, screen cloth 24 can be removed and cleaned.Screen frame 25 and top of the screen cloth 24 by bottom
Thin grid 26 is combined in complex, and screen frame 25 as shown in Figure 5 in the left, has thicker skeleton, for supporting top soil
Weight, and thin grid 26 is densely covered with thinner grid, for preventing soil particle from dropping while being it as shown in Fig. 5 right figure
The soil of top provides sound ventilation environment.Soil heap body 22 to be repaired is stacked on screen cloth 24.Gas phase extraction device 1
Top cover is openable, and top cover one end is fixed by latch 14 with body, and the other end then passes through the carry out activity of hasp 15
Formula is opened and closed.Offer a gas outlet 2 on the side wall of outer shell of gas phase extraction device 1, it is internal covered with filter screen 27 on gas outlet 2
Gas discharge gas outlet 2 before be required to filter by filter screen 27, prevent from taking bulk soil particle out of.Gas outlet 2 is needing
When can be blocked by rubber valve 28, rubber valve 28 is hung near gas outlet 2 by hanging cable.
Each gas phase extraction device 1 is a single processing unit, can select gas according to pending amount of soil
The quantity of phase extraction device 1, organized stacking is then carried out, while handled.The gas outlet of each gas phase extraction device 1
Equal one extracting branch pipe 29 of airtight connection, each branch pipe 29 that extracts are connected in parallel to extracting supervisor 11, extracting supervisor by crossover sub 30
After 11 feed gas into condenser 4, gas-liquid separator 5, dust arrester 6, absorbent charcoal adsorber 9 successively, most at last tail gas from
Gas discharge outlet 10 is discharged.Total valve 3, extracting supervisor 11 are equipped with extracting supervisor 11 between crossover sub 30 and condenser 4
Negative-pressure ward power is provided by vavuum pump 8, pressure gauge 7 is connected on the extracting supervisor 11 between dust arrester 6 and vavuum pump 8.Gas
The bottom liquid of liquid/gas separator 5 is connected to liquid waste treating apparatus 12 by pipeline.
In the said apparatus of the present embodiment, the material and type selecting of each unit are as follows：
The agent structure of gas phase extraction device 1 is stainless steel, and specification is 1.5m × 1.5m × 1.5m.Screen frame 25 is
Stainless steel.Thin grid 26 is good mechanical property, high temperature resistant, the preferable engineering plastics of dimensional stability, such as polyamide, poly- first
Aldehyde, makrolon etc..Filter screen 27 is stainless steel, the mesh of aperture 100, can prevent small clod from entering pipeline.Screen frame 25 is
Stainless steel.Latch 14, hasp 15 can use iron nickel plating, 201 steel, 304 steel materials.Refractory layer 18 is rare metal
Nitride and carbide, such as boron nitride, silicon nitride, boron carbide and carborundum.Heat-insulation layer 19 is low thermal conductivity material, such as glass
Glass cotton, rock wool heat-preservation felt etc..Waterproof layer 20 is adequate thickness, the PVC oilcloths of high intensity.Total valve 3 is PPR materials, double end work
Connect copper ball hot melt tube valve.Condenser 4 is the open shell and tube conde er that heat transfer coefficient is high, floor space is small.Gas-liquid separator 5
For adsorption type gas-liquid separator.Dust arrester 6 is combined for multilayer dirt filtrating screen, and dirt filtrating screen material is machined glass steel, high score
Sub- composite etc..Pressure gauge 7 is pressure vacuum gauge.Vavuum pump 8 is the water-ring vacuum pump that stability is high, floor space is small.
Absorbent charcoal adsorber 9 is carbon steel material, and form is that two layers of drawer type is convenient for changing, and has one layer of demisting, and there is reinforcement inside
The horizontal charcoal absorption case of high grade activated carbon particle.
The application method of said apparatus is as follows：
As shown in figure 1, closure rubber valve 28, opens hasp 15, the sieve that thin grid 26 and screen frame 25 are combined
Net 24 is placed on support 23, and pretreated soil is manually beaten into heap, waste height 0.3-0.4m on screen cloth.From lower and
On screen cloth 24, and the good soil heap body 22 of heap be installed successively, totally three layers.Top cover is closed, and locks hasp.Repeat the above steps,
Until all contaminated soils are all transferred in different gas phase extraction devices 1.Gas phase extraction device 1 is shifted using fork truck
Organized stacking is carried out to reparation place, and according to being actually needed, is in " 3 × 4 " the combination stackings such as Fig. 3 in the present embodiment.
After stacking, the rubber valve 28 of gas phase extraction device 1, the connection of gas outlet 2 extracting branch pipe 29, by turning are opened
Changing-over first 30, extracting branch pipe is connected in parallel to extracting supervisor 11, be equipped with the extracting supervisor 11 between crossover sub 30 and condenser 4
Total valve 3, temporary close total valve 3.The connection condenser 4 of extracting supervisor 11, one end connection dust arrester of the gas outlet of condenser 4
6, one end connection liquid waste treating apparatus 12 of the delivery port of condenser 4, dust arrester 6 connects vavuum pump 8, dust arrester 6 and vacuum
Pressure gauge 7 is connected on extracting supervisor 11 between pump 8, vavuum pump 8 connects absorbent charcoal adsorber 9, and absorbent charcoal adsorber 9 connects
Connect gas discharge outlet 10.
Open total valve 3, startup power supply, condenser 4, the dust arrester 6 of gas-liquid separator 5, vavuum pump 8, charcoal absorption
Device 9, the sequence starting of liquid waste treating apparatus 12.Meanwhile fan 21, the temperature control circuit of gas phase extraction device 1 (include adding thermal resistance
13 start working.
As shown in figure 3, with the work of adding thermal resistance 13, gas phase extraction device 1 is gradually heating to required temperature, fan 21
Startup make being uniformly heated for whole device.Contained pollutant starts to volatilize in soil heap body 22, in the form of gas
By filter screen 27, most of soil block is intercepted.The gas of each gas phase extraction device 1 is reached by respective extracting branch pipe 29
Crossover sub 30, converged by total valve 3 to extracting house steward 11, reach condenser 4.The main function of condenser 4 is reduction gas
Temperature, be advantageous to the gas-liquid separation of next step.By the cooling of condenser 4, gas reaches gas-liquid separator 5, gas-liquid shunting.Liquid
Body flows out from bottom, reaches liquid waste treating apparatus 12；Gas escapes from top, reaches dust arrester 6.Dust arrester 5 is by multilayer
Dirt filtrating screen forms, and can effectively block tiny dust, effectively protects vavuum pump 8 and pipeline.By dust arrester 5, gas reaches true
Empty pump 8, the whole system that operates to of vavuum pump 8 provides gas phase extracting required subnormal ambient, and the registration of pressure gauge 7 can reflect
Real-time status.After gas phase extraction device 1 is run, the working condition of pressure gauge 7 is checked, the negative pressure of whole system is determined by registration
State, ensure extraction effect.After vavuum pump 7, gas reaches absorbent charcoal adsorber 9, the pollutant quilt contained in gas
Activated carbon efficiently removes, and is discharged eventually through gas discharge outlet 10.
After the cycle of operation terminates, it can be recycled by simple cleaning and processing, gas phase extraction device 1, be advantageous to repair
The saving of multiple cost.The global design of gas phase extraction device 1 is advantageous to the use of fork truck, convenient handling, meets long-distance transportation
Needs.The dirt filtrating screen of dust arrester 6 is also required to periodic cleaning, ensures dust removing effects.In absorbent charcoal adsorber 9, activated carbon
Particle can efficient absorption pollutant, according to its saturated extent of adsorption, regularly replace activated carbon granule.Use the activated carbon finished
Grain is disposed as dangerous waste.
Whether the gas outlet 2 on gas phase extraction device 1 can block controlling switch by rubber valve 28, and gas phase can be extracted
Device 1 carries out real-time operation, especially following 2 kinds of situations：1. emergency case occurs for some gas phase extraction device 1, it can remove and take out
Branch pipe 29 is carried, closes rubber valve 28, efficient processing in time is carried out to gas phase extraction device 1.2. the later stage is handled, it is necessary to soil
The treatment effect of earth heap body 22 is detected, and directly gas phase extraction device 1 can be surveyed sample, convenient and swift.
Based on said apparatus, the utility model provides a kind of reinforcing gas phase extraction stain soil remediation method, its step
It is as follows：
Step 1：It is standby after contaminated soil to be repaired is pre-processed；
Step 2：The gas outlet of gas phase extraction device 1 is closed, top cover is opened, orlop screen cloth 24 is installed on device inner chamber
In；Pretreated contaminated soil is beaten into heap on screen cloth 24, then other screen clothes 24 are installed step by step and in each layer of screen cloth 24
The good soil heap body 22 of upper heap, waste height 0.3-0.4m, is then shut off top cover；Repeated for other gas phase extraction devices 1
Step is stated, until all contaminated soils of present treatment batch are all transferred in gas phase extraction device 1；
Step 3：Gas phase extraction device 1 is transferred to using fork truck and repairs place, and carries out tissue stacking；
Step 4：After stacking, the gas outlet 2 of gas phase extraction device 1 is opened, gas outlet 2 is connected into extracting branch pipe 29,
Branch pipe will be extracted by crossover sub 30 again and be connected in parallel to extracting supervisor 11, total valve 3 is opened, start fan 21 and heat resistance layer
Adding thermal resistance 13 in 17, is heated to contaminated soil；
Step 5：When contaminated soil is heated to predetermined temperature, start vavuum pump 8, by caused gas in heating process
It is delivered to condenser 4 to be cooled, is then delivered to gas-liquid separator 5 again and carries out gas-liquid separation, liquid exits into from bottom
Liquid waste treating apparatus 12, and gas escapes into dust arrester 6 from top；Gas fills after dedusting into charcoal absorption
Put 9 pollutants for making to contain in gas to be removed by activated carbon, tail gas is discharged eventually through gas discharge outlet 10.
Embodiment described above is a kind of preferable scheme of the present utility model, so itself and be not used to limit this practicality
It is new.Those of ordinary skill about technical field, can be with the case where not departing from spirit and scope of the present utility model
Make a variety of changes and modification.Therefore the technical scheme that all modes for taking equivalent substitution or equivalent transformation are obtained, all falls within
In the scope of protection of the utility model.
Claims (6)
1. a kind of heat strengthens gas phase extraction stain soil restoring device, it is characterised in that including several box gas phase extractings
Device (1), it is provided with the inner chamber of each gas phase extraction device (1) for promoting cross-ventilated fan (21) and if dried layer
Screen cloth (24), screen cloth (24) top are used to place soil heap body (22) to be repaired；The shell of gas phase extraction device (1) by it is interior to
It is followed successively by heat resistance layer (17), refractory layer (18), heat-insulation layer (19) and waterproof layer (20) outside；The top of gas phase extraction device (1)
Portion is provided with the top cover of opening and closing type, offers a gas outlet in its sidewall shell, covered with filter screen (27) on gas outlet；Each
The gas outlet of gas phase extraction device (1) is all connected with extracting branch pipe (29), and it is in parallel by crossover sub (30) respectively to extract branch pipe (29)
To extracting be responsible for (11), extracting supervisor (11) feed gas into successively condenser (4), gas-liquid separator (5), dust arrester (6),
After absorbent charcoal adsorber (9), most tail gas is discharged from gas discharge outlet (10) at last；Crossover sub (30) and condenser (4) it
Between extracting supervisor (11) on be equipped with total valve (3), extracting supervisor (11) is by vavuum pump (8) offer negative-pressure ward power, dedusting
Pressure gauge (7) is connected on extracting supervisor (11) between device (6) and vavuum pump (8)；The bottom liquid of gas-liquid separator (5) leads to
Cross pipeline and be connected to liquid waste treating apparatus (12).
2. heat as claimed in claim 1 strengthens gas phase extraction stain soil restoring device, it is characterised in that described gas outlet
Can open and close type closure by rubber valve (28).
3. heat as claimed in claim 1 strengthens gas phase extraction stain soil restoring device, it is characterised in that described dedusting dress
Put and multilayer dirt filtrating screen is provided with (6), for filtering the dust in gas coming through.
4. heat as claimed in claim 1 strengthens gas phase extraction stain soil restoring device, it is characterised in that described heating electric
There is adding thermal resistance (13) according to U-shaped disk in resistance layer (17), adding thermal resistance (13) is connected in temperature control circuit, for controlling gas phase to take out
Put forward the internal heating-up temperature of device (1).
5. heat as claimed in claim 1 strengthens gas phase extraction stain soil restoring device, it is characterised in that described screen cloth
(24) it is combined in complex by the screen frame (25) of bottom and the thin grid (26) on top, screen frame (25) is used to support top weight
Amount, and thin grid (26) is used to prevent soil particle from dropping while provide ventilated environment for the soil above it.
6. heat as claimed in claim 1 strengthens gas phase extraction stain soil restoring device, it is characterised in that described gas phase is taken out
The base for carrying device (1) is provided with the structure being engaged with fork truck, in order to carrying fork truck.
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| CN201720906449.3U CN207103409U (en) | 2017-07-25 | 2017-07-25 | A kind of heat strengthens gas phase extraction stain soil restoring device |
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| CN201720906449.3U CN207103409U (en) | 2017-07-25 | 2017-07-25 | A kind of heat strengthens gas phase extraction stain soil restoring device |
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| CN107309257A (en) * | 2017-07-25 | 2017-11-03 | 浙江大学 | Heat reinforcing gas phase extraction stain soil restoring device and its method |
| CN109226225A (en) * | 2018-04-02 | 2019-01-18 | 霍耀东 | A kind of novel modularized batch-type vacuum extraction thermal desorption processing system and method |
| CN110354650A (en) * | 2019-07-30 | 2019-10-22 | 云南雷允上理想药业有限公司 | A kind of vacuum system dehumidifying unit |
| CN110976500A (en) * | 2019-12-12 | 2020-04-10 | 中科鼎实环境工程有限公司 | Modular thermal desorption treatment device for organic contaminated soil |
| CN116651917A (en) * | 2023-05-31 | 2023-08-29 | 生态环境部南京环境科学研究所 | Integrated organic matter contaminated soil restoration equipment and restoration method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309257A (en) * | 2017-07-25 | 2017-11-03 | 浙江大学 | Heat reinforcing gas phase extraction stain soil restoring device and its method |
| CN109226225A (en) * | 2018-04-02 | 2019-01-18 | 霍耀东 | A kind of novel modularized batch-type vacuum extraction thermal desorption processing system and method |
| CN109226225B (en) * | 2018-04-02 | 2024-04-16 | 霍耀东 | Novel modularized sequencing batch vacuum extraction thermal desorption treatment system and method |
| CN110354650A (en) * | 2019-07-30 | 2019-10-22 | 云南雷允上理想药业有限公司 | A kind of vacuum system dehumidifying unit |
| CN110976500A (en) * | 2019-12-12 | 2020-04-10 | 中科鼎实环境工程有限公司 | Modular thermal desorption treatment device for organic contaminated soil |
| CN116651917A (en) * | 2023-05-31 | 2023-08-29 | 生态环境部南京环境科学研究所 | Integrated organic matter contaminated soil restoration equipment and restoration method |
| CN116651917B (en) * | 2023-05-31 | 2024-05-14 | 生态环境部南京环境科学研究所 | Integrated organic matter contaminated soil restoration equipment and restoration method |
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