CN208643668U - A kind of original position soil thermal desorption steam extraction equipment - Google Patents
A kind of original position soil thermal desorption steam extraction equipment Download PDFInfo
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- CN208643668U CN208643668U CN201820611474.3U CN201820611474U CN208643668U CN 208643668 U CN208643668 U CN 208643668U CN 201820611474 U CN201820611474 U CN 201820611474U CN 208643668 U CN208643668 U CN 208643668U
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Abstract
The utility model discloses a kind of original position soil thermal desorption steam extraction equipments, including enclosure space, soil to be handled is placed in the enclosure space, it further include steam boiler, steam supply main pipe, buried steam injection pipe and condensate tank, the steam boiler is arranged on the outside of enclosure space, the buried steam injection pipe is embedded in soil bottom to be processed, several spray-holes are evenly distributed on the buried steam injection pipe, the steam boiler is exported equipped with steam supply pipe, one end of the steam supply main pipe is connected with steam supply pipe outlet, the other end of the steam supply main pipe is connected with one end of buried steam injection pipe, the other end of the buried steam injection pipe is located at the top of condensate tank.By adopting the above technical scheme, to the mode of contaminated soil base injcction high-temperature gas, steam is driven to flow through contaminated soil gap, desorbs and carry organic pollutant component secretly and flows to soil surface, and most ground enclosure space is handled finally.
Description
Technical field
The utility model relates to in-situ soil remediation technology field, refers specifically to a kind of original position soil thermal desorption steam extraction and set
It is standby.
Background technique
Soil was the natural collecting post and purified treatment place of all kinds of wastes originally, but when all kinds of dirts accommodated in soil
Dye object has excessively been more than the self-purification capacity of soil, shows that soil is contaminated.There are many reason of causing soil pollution, such as industry
Sludge, agricultural garbage, sewage irrigation, pollutant sedimentation in atmosphere, a large amount of mineral chemical fertilizer and pesticide etc. using containing heavy metal.
The existing arable land of China has nearly 1/5 by different degrees of pollution, and contaminated soil will lead to crop production reduction, or even have
It is exceeded to may cause pollutant in agricultural product, and then is detrimental to health.In addition, with the acceleration of economic development and urbanization,
Contaminated sites caused by industrial and mining enterprises are also extremely serious.Due to the variation and adjustment of the industrial structure and city layout, some chemical industry,
The contaminating enterprises such as metallurgy move one after another, in addition the bankruptcy of some enterprises, contaminated site constantly generate.Soil is human society production
Movable important material base, be it is indispensable, be difficult to regenerated natural resources.The contaminated site not handled will be that chemistry is fixed
When bomb, once large area outburst influence difficult to the appraisal will be caused on national sustainable development, it is therefore necessary to soil dirt
The prevention of dye and contaminated soil remediation are paid much attention to.It is therefore desirable to properly manage and repaired, obtain it rationally
It utilizes.
Investment of the U.S. in terms of the 1990s is for contaminated soil remediation has nearly 100,000,000,000 dollars.Contaminated soil is repaired
Multiple theory has become the forward position of entire Environmental science and technology research with technology.The process of the reparation of soil is quite very long, when
Preceding solution soil contamination problem needs scientist such as agrology, agronomy, ecology, Biogeochemistry, the sea of different subjects
The joint efforts of foreign science and the related production unit and government decision person such as be related to agricultural, forestry, fishery.
Chinese soil pollution constitutes a threat to Sustainable Use of Soil Resources and agricultural product ecological safety.The whole nation is by organic
Up to 36,000,000 hectares, pollutant type includes petroleum-type, polycyclic aromatic hydrocarbon, pesticide, organochlorine etc. in the farmland of contaminants；Cause
For serious oil pollution land area caused by oilfield exploitation up to 10,000 hectares, oil refining industry is also contaminated large area soil；
Petroleum waste water irrigated area is comforted in Shen, surface layer and subsoil polycyclic aromatic hydrocarbon content cause crops and underground more than 600mg/kg
The serious pollution of water.The whole nation by heavy metal pollution soil up to 20,000,000 hectares, wherein serious contaminated land is more than 700,000 hectares,
In 130,000 hectare of land because cadmium content is exceeded be forced it is no longer cultivated.Just because of this, Chinese contaminated soil remediation research, it is positive to undergo
From laboratory research to the transition of practical stage, i.e., will enter one quickly, comprehensive administer period.
The U.S. has carried out a large amount of soil remediation engineerings after the 1980s.What U.S.'s super fund plan was implemented
Soil restoring technology has become the important window that countries in the world understand newest soil restoring technology variation.2002-2005 finance
In year, for 60% pollution sources processing engineering project using based technique for in-situ remediation, this is primarily due to based technique for in-situ remediation
With without digging, muck haulage earth, rehabilitation cost are low, are suitable for the spies such as the reparation of deep layer pollution medium, small to construction personnel's health effect
Point.There are about reparations and management work that 21.1 hundred million Euros are used for contaminated soil every year in Europe, wherein thermal desorption, biology in situ in situ
Processing and materializing strategy recovery technique in situ account for 35%.
Soil restoring technology research in China's is started late, in addition regional development lack of uniformity, soil types diversity, pollution
Site characteristic variability, pollution type complexity, the factors such as technical need diversity have been established mainly based on phytoremediation
Many Demonstration Bases, demonstration area and trial zone, and obtain many phytoremediation technology achievements and rehabilitation plant resource utilization
Technological achievement.Research application is more in physical/chemical recovery technique: (1) solidification-stabilisation；(2) it elutes；(3) chemical oxygen
Change-reduction；(4) soil electromotion repairing technique.Target is the based technique for in-situ remediation of contaminated site soil.It is ground in combined remediation technology
Study carefully with more: (1) the plant combined recovery technique of microorganism/animal-；(2) chemistry/materialization-Co-bioremediation technology；
(3) physical-chemical combined remediation technology.Target is composite pollution place soil restoring technology.China is in the case where government finance is supported
The recovery technique equipment research and development in multiple type places are carried out.Although the recovery technique of the soil and underground water pollution that can enumerate
Very much, wherein soil steam microwave leaching technology is a kind of original position soil reparation for removing volatile organic contaminant (VOCs) in soil
Technology.
Soil steam microwave leaching technology is to introduce clean air in contaminated soil to generate driving force, utilizes solid phase of soil, liquid
Mutually and gas phase between concentration gradient, air pressure reduce in the case where, be translated into gaseous pollutant exclude soil outside mistake
Journey.Soil steam microwave leaching technology, which generates negative pressure using vacuum pump, drives air to flow through contaminated soil gap, and desorbs and carry secretly
Organic contamination component flow direction extracts well, and is most handled on the ground finally.To increase barometric gradient and air velocity, many situations
If dry air injector well is also installed in contaminated soil under.
The technology is suitable for the reparation of high volatile chemical contamination soil, such as the soil of gasoline, benzene and tetrachloro-ethylene pollution
Earth.The major technique of soil air lift technology is divided into original position soil steam microwave leaching technology again；(two-phase extracts skill to multiphase microwave leaching technology
Art, double microwave leaching technology) etc..Its main feature is that strong operability, equipment are simple, are easy installation；To the destruction very little in processing place；
The processing time is shorter, under ideal conditions, usual 6 months to 2 years.The shortcomings that technology be extremely difficult to 90% with
On removal rate；Validity is uncertain on hyposmosis soil and the soil for having stratification；The soil that unsaturated zone can only be handled,
Handle saturated zone soil and groundwater, it is also necessary to other technologies.And there are removal rates in steam microwave leaching technology for the prior art not
Not the defects of high and low permeable soil validity is not known.
Utility model content
The utility model is according to the deficiency of existing soil in-situ recovery technique, in conjunction with thermodynamics reparation, thermal desorption reparation etc.
Technical characterstic proposes a kind of original position soil thermal desorption steam extraction equipment, and steam-heating pipe is laid in the Polluted Soil that need to be administered
Earth lower part makes organic contaminants in soil be rapidly converted into gaseous state and excludes from soil surface using the heat of water or steam, or logical
It crosses special extraction well to exclude, and completes the improvement of organic contaminants in soil.
In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows:
A kind of original position soil thermal desorption steam extraction equipment, including enclosure space are placed with wait locate in the enclosure space
Soil is managed, further includes steam boiler, steam supply main pipe, buried steam injection pipe and condensate tank, the steam boiler setting is being sealed
It closes on the outside of space, the buried steam injection pipe is embedded in soil bottom to be processed, uniformly divides on the buried steam injection pipe
Several spray-holes are furnished with, the steam boiler is exported equipped with steam supply pipe, and one end and the steam supply pipe of the steam supply main pipe export phase
Connection, the other end of the steam supply main pipe is connected with one end of buried steam injection pipe, the buried steam injection pipe it is another
One end is located at the top of condensate tank.
Preferably, being connected with boiler replenishing water pipe on the steam boiler.
Preferably, the other end of the buried steam injection pipe is provided with steam trap.
Preferably, the condensate tank is connected to boiler replenishing water pipe by a condensate pipe, the condensate pipe and boiler are mended
Return water water pump is equipped between water pipe.
It is embedded in soil to be processed preferably, the buried steam injection pipe is S-type.
Preferably, the spray-hole is equipped with reticulated.
Preferably, active well is equipped with around the soil to be processed, the condensate tank setting and work bottom.
The utility model have the characteristics that it is following and the utility model has the advantages that
By adopting the above technical scheme, to the mode of contaminated soil base injcction high-temperature gas, steam is driven to flow through pollution
Interstices of soil, desorbs and carries organic pollutant component secretly and flow to soil surface, and most ground enclosure space is handled finally；Together
When, the high temperature of buried jet chimney can also directly heat contaminated soil, to promote the fast of organic contamination compound in soil
Speed is decomposed.The advantages of being effectively combined thermal desorption and steam two kinds of recovery techniques of extraction, and eliminate current steam extraction
The defect that removal rate rate present in technology is low and repair time is long.Buried steam injection pipe is placed in soil bottom to be repaired,
The high-temperature steam ejected moves in interstices of soil, can it is larger promote polluter decomposition and extraction so that soil
Interior polluter is quickly excluded from soil surface.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that Fig. 1 plants buried steam pipe arrangement schematic diagram.
In figure, 1- steam boiler, the outlet of 2- steam supply pipe, 3- valve, 4- steam supply main pipe, the buried steam injection pipe of 5-, 6- spray
Perforation, 7- steam trap, 8- condensate tank, 9- condensate pipe, 10- return water water pump, 11- boiler replenishing water pipe, 12- blower, 13- closing are empty
Between, 14- active well, 15- soil to be processed.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
The utility model provides a kind of original position soil thermal desorption steam extraction equipment, as shown in Figure 1, including enclosure space
13, enclosure space 13 is interior to place soil 15 to be handled, in addition, further including steam boiler 1, steam supply main pipe 4, the injection of buried steam
Pipe 5 and condensate tank 8, the setting of steam boiler 1 are embedded in soil to be processed in 13 outside of enclosure space, buried steam injection pipe 5
15 bottoms, several spray-holes 6 are evenly distributed on buried steam injection pipe 5, and steam boiler 1 is equipped with steam supply pipe outlet 2, steam supply
One end of main pipe 4 is connected with steam supply pipe outlet 2, and the other end of steam supply main pipe 4 is connected with one end of buried steam injection pipe 5
It connects, the other end of buried steam injection pipe 5 is located at the top of condensate tank 8.
Specifically, being connected with boiler replenishing water pipe 11 on steam boiler 1.
Specifically, the other end of buried steam injection pipe 5 is provided with steam trap 7.
Specifically, condensate tank 8 is connected to boiler replenishing water pipe 11, condensate pipe 9 and boiler replenishing water pipe 11 by a condensate pipe 9
Between be equipped with return water water pump 10.
In above-mentioned technical proposal, to the mode of 15 base injcction high-temperature gas of soil to be processed, steam is driven to flow through wait locate
15 gap of soil is managed, desorbs and carries organic pollutant component secretly and flow to soil surface, and most ground enclosure space is handled finally；
Meanwhile the high temperature of buried jet chimney 5 can also directly heat soil 15 to be processed, to promote organic in soil 15 to be processed
The fast decoupled of pollution compound.The advantages of being effectively combined thermal desorption and steam two kinds of recovery techniques of extraction, and eliminate
The defect that removal rate rate present in current steam microwave leaching technology is low and repair time is long.Buried steam injection pipe 5 is placed in
To 15 bottom of soil to be processed, the high-temperature steam ejected moves in 15 gap of soil to be processed, can larger promotion pollutant
The decomposition and extraction of matter, so that the polluter in soil is quickly excluded from soil surface.
Specifically, the steam that steam boiler 1 generates is connected to buried steam injection pipe 5, outlet connection by steam supply main pipe 4
Return main；The both ends of return main are connected with by steam trap 7 and condensate tank 8 respectively；The intake of return water water pump 10 connects
Condensate tank 8 is connect, outlet is connected to steam boiler 1 by boiler replenishing water pipe 11.Steam passes through buried 5 top of steam injection pipe
The spray-hole of equidistant placement is sprayed to soil, is moved to soil surface by grogs gap, and high-temperature steam adsorbs Polluted Soil therebetween
Organic compound dissipate in soil surface confined space in earth；Buried steam pipe material uses the good metal of thermal conductive property
Pipe, the high temperature of steam are conducted to contaminated soil by tube wall, and the organic compound in soil is thermally decomposed, and voluntarily move to ground surface
Dynamic dissipate is overflow.
15 surface of soil to be processed is enclosure space, the wind that the pollution organic compound of dissipate is arranged by space top
Machine 12 is pumped to organic contamination compound governing system.
The further setting of the utility model, as shown in Fig. 2, buried steam injection pipe 5 is S-type to be embedded in soil to be processed
In 15.By the setting of S type, distribution is more comprehensive, more uniform.
The further setting of the utility model, spray-hole 6 are equipped with reticulated, and soil particle is avoided to enter buried steam
In injection pipe 5.
The further setting of the utility model, is equipped with active well 14 around soil 15 to be processed, the setting of condensate tank 8 with
14 bottom of active well.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit
These embodiments include that component carries out a variety of change, modification, replacement and modification, still fall within the protection scope of the utility model
It is interior.
Claims (7)
1. a kind of original position soil thermal desorption steam extraction equipment, including enclosure space, the interior placement of the enclosure space is to be handled
Soil, which is characterized in that further include steam boiler, steam supply main pipe, buried steam injection pipe and condensate tank, the steam boiler
It is arranged on the outside of enclosure space, the buried steam injection pipe is embedded in soil bottom to be processed, the buried steam injection pipe
On be evenly distributed with several spray-holes, the steam boiler is exported equipped with steam supply pipe, one end of the steam supply main pipe and steam supply
Pipe outlet is connected, and the other end of the steam supply main pipe is connected with one end of buried steam injection pipe, the buried steam spray
The other end for penetrating pipe is located at the top of condensate tank.
2. original position soil thermal desorption steam extraction equipment according to claim 1, which is characterized in that on the steam boiler
It is connected with boiler replenishing water pipe.
3. original position soil thermal desorption steam extraction equipment according to claim 1, which is characterized in that the buried steam spray
The other end for penetrating pipe is provided with steam trap.
4. original position soil thermal desorption steam extraction equipment according to claim 1, which is characterized in that the condensate tank is logical
It crosses a condensate pipe and is connected to boiler replenishing water pipe, return water water pump is equipped between the condensate pipe and boiler replenishing water pipe.
5. original position soil thermal desorption steam extraction equipment according to claim 1, which is characterized in that the buried steam spray
Penetrate that pipe is S-type to be embedded in soil to be processed.
6. original position soil thermal desorption steam extraction equipment according to claim 1, which is characterized in that set on the spray-hole
There is reticulated.
7. original position soil thermal desorption steam extraction equipment according to claim 1, which is characterized in that the soil to be processed
Surrounding is equipped with active well, the condensate tank setting and work bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820611474.3U CN208643668U (en) | 2018-04-26 | 2018-04-26 | A kind of original position soil thermal desorption steam extraction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820611474.3U CN208643668U (en) | 2018-04-26 | 2018-04-26 | A kind of original position soil thermal desorption steam extraction equipment |
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| Publication Number | Publication Date |
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| CN208643668U true CN208643668U (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820611474.3U Active CN208643668U (en) | 2018-04-26 | 2018-04-26 | A kind of original position soil thermal desorption steam extraction equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112547775A (en) * | 2021-01-15 | 2021-03-26 | 上海沫依生物科技有限公司 | Utilize equipment of steam extraction restoration soil |
| CN115121595A (en) * | 2022-07-18 | 2022-09-30 | 天明环境修复有限公司 | Repair and pollute steam extraction repair equipment for soil |
-
2018
- 2018-04-26 CN CN201820611474.3U patent/CN208643668U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112547775A (en) * | 2021-01-15 | 2021-03-26 | 上海沫依生物科技有限公司 | Utilize equipment of steam extraction restoration soil |
| CN112547775B (en) * | 2021-01-15 | 2022-11-22 | 安徽中青环保工程咨询有限公司 | Utilize equipment of steam extraction restoration soil |
| CN115121595A (en) * | 2022-07-18 | 2022-09-30 | 天明环境修复有限公司 | Repair and pollute steam extraction repair equipment for soil |
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