CN105251759B - A kind of multisection type soil in-situ aerator - Google Patents
A kind of multisection type soil in-situ aerator Download PDFInfo
- Publication number
- CN105251759B CN105251759B CN201510674434.4A CN201510674434A CN105251759B CN 105251759 B CN105251759 B CN 105251759B CN 201510674434 A CN201510674434 A CN 201510674434A CN 105251759 B CN105251759 B CN 105251759B
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- sealing device
- aeration
- aerator
- situ
- air injection
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The invention provides a kind of multisection type soil in-situ aerator, including：Sealing device, air injection pipe, aeration tube；Sealing device includes：First sealing device and the second sealing device, first sealing device and the second sealing device are circular platform type, and first sealing device is socketed in air injection pipe；Air injection pipe upper end is connected with aerator, and lower end is connected through first sealing device with aeration tube；Aeration tube upper end is connected with air injection pipe lower end, and lower end is connected with the second sealing device；Aeration tube includes：Vertical tube is aerated, is aerated on vertical tube and is provided with multiple body holes, each body hole is connected with aeration branch pipe, has an inclination angle between aeration branch pipe and aeration vertical tube；Wherein, first sealing device and the second sealing device are relatively arranged in aeration well respectively, and form a closing space with the aeration well borehole wall, multisection type soil in-situ aerator provided in an embodiment of the present invention has the advantages that aeration is uniform, air injection device energy consumption is low and operation is flexible, improves the removal efficiency of pollutant.
Description
Technical field
The present invention relates to soil pollution to repair field, more particularly to a kind of multisection type soil in-situ aerator.
Background technology
Soil aerator technology (Air Sparging, AS) is that a kind of original position for handling volatile organic contaminant in soil is repaiied
Recovering technology, due to its cost is low, efficiency high, can the advantage of construction in situ it is widely used in soil middle-molecular-weihydroxyethyl smaller, easy
The reparation of volatile organic compounds.Compressed air is injected soil by AS technologies, and gas causes volatilization during upward motion
Property organic pollution enter gas phase from the soil body, then the air containing pollutant is handled by gas phase extraction system, so as to reach
The purpose of depollution thing.In addition, the air of injection can accelerate the removal of pollutant by aerobic bioreactor degraded.
However, being found by laboratory research and sitework application, due to being influenceed by injection gas pressure, inject
The aeration quantity of bottom is low more than the aeration quantity at top, meanwhile, influenceed by soil media heterogeneity so that existing soil is former
Position aeration process is difficult to uniform aeration, so as to influence volatile contaminant from the volatilization in soil and aeration process to soil
The oxygen supply of aerobic microbiological in earth, greatly limit the removal efficiency of pollutant.
Therefore, it is necessary to which a kind of new aerator, solves the problems, such as that the existing aeration of prior art is uneven, and
Improve the application and using effect of AS technologies.
The content of the invention
The problem of existing for prior art, the present invention provide a kind of multisection type soil in-situ aerator, the dress
It is uniform to put aeration, air injection device energy consumption is low, and operates flexibly, and the compressed air of injection progressively exists stage by stage from the bottom to top
Target area discharges.
The present invention provides a kind of multisection type soil in-situ aerator, and it includes：Sealing device, air injection pipe, aeration tube；Institute
Stating sealing device includes：First sealing device and the second sealing device, the first sealing device and second sealing device
It is circular platform type, the first sealing device is socketed in the air injection pipe；The air injection pipe upper end is connected with aerator, lower end
It is connected through the first sealing device with the aeration tube；The aeration tube upper end is connected with the air injection pipe lower end, lower end
It is connected with second sealing device；The aeration tube includes：Vertical tube is aerated, multiple pipe body holes are provided with the aeration vertical tube
Hole, each body hole are connected with aeration branch pipe, have an inclination angle between the aeration branch pipe and the aeration vertical tube；Its
In, the first sealing device and second sealing device are relatively arranged in aeration well respectively, and with the aeration well well
Wall forms a closing space.
Preferably, the first sealing device includes upper bottom, bottom and side；The upper bottom of the first sealing device is circle
Band of column type, the bottom of the first sealing device is ring-like for cylinder, the top of the side of the first sealing device and described the
The edge at the upper bottom of one sealing device closely connects, the bottom of the side of the first sealing device and the first sealing device
The edge of bottom closely connect, the overall diameter of the bottom of the first sealing device is matched with the internal diameter of the aeration well.
Preferably, second sealing device includes upper bottom, bottom and side；The upper bottom of second sealing device is circle
Column type, the bottom of second sealing device is ring-like for cylinder, the top of the side of second sealing device and described second
The edge at the upper bottom of sealing device closely connects, the bottom of the side of second sealing device and second sealing device
The edge of bottom closely connects, and the overall diameter of the bottom of second sealing device is matched with the internal diameter of the aeration well.
Preferably, the side of the first sealing device is provided with support meanss；The support meanss include more flat springs
Steel disc, the multi-disc spring steel plate surround be attached on the outside of the side of the first sealing device respectively, and more flat springs
The upper and lower ends of steel disc are connected to the upper bottom and bottom of the first sealing device.
Preferably, the side of second sealing device is provided with support meanss；The support meanss include more flat springs
Steel disc, the multi-disc spring steel plate surround be attached on the outside of the side of second sealing device respectively, and more flat springs
The upper and lower ends of steel disc are connected to the upper bottom and bottom of second sealing device.
Preferably, the air injection pipe is managed for polyvinyl chloride (PVC), and described aeration tube is managed for polyvinyl chloride (PVC), described
The lower end of aeration tube and the upper bottom grafting of second sealing device, the aeration branch pipe are managed for polyvinyl chloride (PVC).
Preferably, the inclination angle is 30-45 degree.
Furthermore it is preferred that the making material of the sealing device includes urethane rubber materials.
A kind of multisection type soil in-situ aerator provided according to embodiments of the present invention, first, device aeration is uniform,
Using the design of interim aeration from the bottom to top it is possible to prevente effectively from due to being difficult to uniform aeration caused by soil media heterogeneity
The problem of, aerating system is designed to solve because injection air pressure from top to bottom gradually subtracts using non-equidistant perforate in addition
The problem of aeration caused by small is uneven.Second, the device air injection device energy consumption is low, as a result of aeration branch pipe
Design so that after aerating system is entered through air injection tube, compressed air can only outwards diffuse into air through aeration branch pipe
And be aerated to soil media, and reverse flow is unable to, aerating system is reentered, thus effectively reduces air note
Enter the energy consumption of equipment.Can be by monitoring the organic dirt of volatility in soil third, device operation is flexible, during practical engineering application
The aeration time and aeration number for contaminating the concentration of thing to control each stage to need, so as to reach the purpose of full and uniform aeration,
Improve the removal efficiency of pollutant.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the multisection type soil in-situ aerator structural representation described in one embodiment of the present of invention；
Fig. 2 is the top view of the sealing device of multisection type soil in-situ aerator shown in Fig. 1；
Fig. 3 is the aeration vertical tube and hole layout diagram of multisection type soil in-situ aerator shown in Fig. 1；
Fig. 4 is the aeration vertical tube and aeration branch pipe longitdinal cross-section diagram of multisection type soil in-situ aerator shown in Fig. 1.
Reference：
1：Aeration well；2：Upper bottom；3：Side；4：Bottom；5：Support meanss；
6：Air injection pipe；7：It is aerated vertical tube；8：Body hole；9：Aeration branch pipe.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The main thought of the embodiment of the present invention is that technical scheme according to embodiments of the present invention, compressed air is through gas injection
Pipe injection after, the gas of injection under the iris action of first sealing device and the second sealing device, through aerating system discharge into
Enter soil media, after aeration, in the presence of lifting device, be integrally up-shifted to target area, repeat above-mentioned aeration
Process, until completing the aeration to whole restoring area.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
Fig. 1 is the multisection type soil in-situ aerator structural representation described in one embodiment of the present of invention.Fig. 2 is figure
The top view of the sealing device of the aerator of multisection type soil in-situ shown in 1.As depicted in figs. 1 and 2, according to the implementation of the present invention
Example, the device include sealing device, air injection pipe and aeration tube.
Sealing device includes first sealing device and the second sealing device.First sealing device and the second sealing device are
Circular platform type, first sealing device are located at the top of the second sealing device.Preferably, the bottom of first sealing device and the second sealing
The distance between top of device is 0.5~1.0m.Wherein, first sealing device and the second sealing device are relatively arranged on respectively
In aeration well, first sealing device and the second sealing device are oppositely arranged up and down, and form a closing space with the aeration well borehole wall.
Preferably, the making material of sealing device includes urethane rubber materials.
The closing space that first sealing device and the second sealing device are formed with the aeration well borehole wall primarily serves closed injection
Air, the effect that control air discharges in target area.
First sealing device is socketed in the top of air injection pipe 6；The upper end of air injection pipe 6 is connected with aerator, and lower end passes through first
Sealing device is connected with aeration tube.Aeration tube upper end is connected with the lower end of air injection pipe 6, and lower end is connected with the second sealing device, at this
In embodiment, the lower end of aeration tube and the upper bottom grafting of the second sealing device.
Aeration tube includes aeration vertical tube 7 and aeration branch pipe 9, is aerated on vertical tube 7 and is provided with multiple body holes 8, Ge Geguan
Body opening hole 8 is connected with aeration branch pipe 9, has an inclination angle between aeration branch pipe 9 and aeration vertical tube 7.Preferably, inclination angle 30-45
Degree.
In the present embodiment, first sealing device includes upper bottom 2, bottom 4 and side 3；The upper bottom 2 of first sealing device is
Cylinder is ring-like, and the bottom 4 of first sealing device is ring-like for cylinder, and the top of the side 3 of first sealing device fills with the first sealing
The edge at the upper bottom 2 put closely connects, the edge of the bottom of the side 3 of first sealing device and the bottom 4 of first sealing device
Close connection, the overall diameter of the bottom 4 of first sealing device are matched with the internal diameter of aeration well.Second sealing device include upper bottom 2,
Bottom 4 and side 3；The upper bottom 2 of second sealing device is cylindrical type, and the bottom 4 of the second sealing device is ring-like for cylinder, and second is close
The top of the side 3 of seal apparatus is closely connected with the edge at the upper bottom 2 of the second sealing device, the side 3 of the second sealing device
Bottom is closely connected with the edge of the bottom 4 of the second sealing device, and the overall diameter of the bottom 4 of the second sealing device is matched with aeration
The internal diameter of well.
The side 3 of sealing device is provided with support meanss 5；Support meanss 5 include multi-disc spring steel plate, multi-disc spring steel plate
Respectively symmetrically around the outside of side 3 for being attached at sealing device, and the upper and lower ends of multi-disc spring steel plate are connected to sealing
The upper bottom 2 and bottom 4 of device, the effect of spring steel plate are to strengthen the bearing capacity of sealing device, can be born bigger
Pressure.
In the present embodiment, the side 3 of first sealing device is provided with support meanss 5；Support meanss 5 include more flat springs
Steel disc, multi-disc spring steel plate is respectively around the outside of side 3 for being attached at first sealing device, and up and down the two of multi-disc spring steel plate
End is connected to the upper bottom 2 and bottom 4 of first sealing device.
The side 3 of second sealing device is provided with support meanss 5；Support meanss 5 include multi-disc spring steel plate, more flat springs
Steel disc is respectively around the outside of side 3 for being attached at the second sealing device, and the upper and lower ends of multi-disc spring steel plate are connected to
The upper bottom 2 and bottom 4 of second sealing device.
The radius at the upper bottom 2 of sealing device is the 1/2~3/4 of the radius of aeration well well casing 1, and thickness is 3~5cm；Bottom 4
Outer shroud radius be aeration well well casing 1 radius, the 4 inner ring radius of going to the bottom is the 1/2~3/4 of the radius of aeration well well casing 1, thick
Spend for 3~5cm；Upper bottom 2 and the bottom 4 closely connection respectively of the top and bottom of side 3, the thickness of side 3 is upper bottom 2 or bottom
The 3/4~4/5 of 4 thickness, width are 3~5cm.
In the present embodiment, upper bottom 2 is polyurethane rubber cylinder, and its radius is the 1/2 of the radius of aeration well well casing 1, thick
Spend for 3cm；Bottom 4 is polyurethane rubber cylinder ring, and outer shroud radius is aeration well well casing radius, and inner ring radius is aeration well well casing
Radius 1/2, thickness 3cm；Side 3 is polyurethane rubber piece, and thickness is the cylinder ring thickness 3/4 of bottom 2, width 3cm, side
The top and bottom on side 3 are closely connected with upper bottom 2 and bottom 4 respectively.
Support meanss 5 include 6~10 spring steel plates, and spring steel plate is in isosceles trapezoid, the height of spring steel plate for 3~
5cm, upper bottom width are 0.5~1cm, and bottom width is 1~2cm, outside equidistant cloth of the spring steel plate in the side 3 of sealing device
If spring steel plate uniform stressed can be made by being equally spaced, maximum supporting sealing device.
In the present embodiment, bottom 2 and bottom 4 are close beyond the Great Wall with polyurethane rubber seal respectively for bottom and bottom on spring steel plate
Connection, and surround the outside that polyurethane rubber seal plug side 3 is equidistantly laid in polyurethane rubber piece.
The radius of air injection pipe 6 is the 1/4~3/8 of the radius of aeration well well casing 1, and thickness is 3~5mm.
Fig. 3 is the aeration vertical tube and hole layout diagram of multisection type soil in-situ aerator shown in Fig. 1.
As shown in figure 3, the six calandria holes 8 of laying of vertical tube 7 are aerated, the arc tube wall between adjacent two calandrias hole 8
Corresponding central angle is 60 °, and the radius of body hole 8 is 1~3mm, it is possible to achieve the uniform aeration on six direction, is protected
Demonstrate,prove aeration effect.
In the present embodiment, laid per calandria hole 8 along the bus non-equidistant of aeration vertical tube 7, from the bottom to top i-th and the
The distance between i+1 hole d=[L/ (n+1)] × [i/ (i+1)], wherein n are per calandria 8 numbers of hole, and L is perpendicular for aeration
The length of pipe 7.So, it is possible to prevente effectively from the aeration caused by injection air pressure is from top to bottom gradually reduced is uneven
The problem of.
Air injection pipe 6 is managed for polyvinyl chloride (PVC), and aeration vertical tube 7 is managed for polyvinyl chloride (PVC), and aeration branch pipe 9 is polychlorostyrene second
Alkene (PVC) is managed.
Fig. 4 is the aeration vertical tube and aeration branch pipe longitdinal cross-section diagram of multisection type soil in-situ aerator shown in Fig. 1.Such as figure
Shown in 4, inclination angle is 30~45 ° between aeration branch pipe 9 and aeration vertical tube 7, the distance of the end of aeration branch pipe 9 distance aeration vertical tube 7
The 1/2~2/3 of distance between aeration vertical tube 7 and aeration well well casing 1.So, air is aerated once entering through air injection tube
After system, compressed air can only outwards spread through aeration branch pipe and then is aerated to soil media, and be unable to reverse flow, weight
Newly enter aerating system, effectively reduce the energy consumption of air injection device.
In summary, technique according to the invention scheme, first, device aeration is uniform, use is interim from the bottom to top
The design of aeration is it is possible to prevente effectively from due to the problem of being difficult to uniform aeration caused by soil media heterogeneity, aerating system in addition
It is uneven using the aeration being designed to solve caused by injection air pressure is from top to bottom gradually reduced of non-equidistant perforate
The problem of even.Second, the device air injection device energy consumption is low, as a result of the design of aeration branch pipe so that air is once
After air injection tube enters aerating system, compressed air can only outwards spread through aeration branch pipe and then be exposed to soil media
Gas, and reverse flow is unable to, aerating system is reentered, thus effectively reduces the energy consumption of air injection device.Third,
Device operation is flexible, can be controlled by monitoring the concentration of volatile organic contaminant in soil during practical engineering application each
The aeration time and aeration number that stage needs, so as to reach the purpose of full and uniform aeration, improve the removal effect of pollutant
Rate.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, it can be as the part that unit is shown or may not be physics list
Member, you can with positioned at a place, or can also be distributed on multiple NEs.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and implement.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (8)
- A kind of 1. multisection type soil in-situ aerator, it is characterised in that including：Sealing device, air injection pipe, aeration tube；The sealing device includes：First sealing device and the second sealing device, the first sealing device and described second close Seal apparatus is circular platform type, and the first sealing device is socketed in the air injection pipe；The air injection pipe upper end is connected with aerator, and lower end is connected through the first sealing device with the aeration tube；The aeration tube upper end is connected with the air injection pipe lower end, and lower end is connected with second sealing device；The aeration tube includes：Vertical tube is aerated, multiple body holes, each body hole are provided with the aeration vertical tube Aeration branch pipe is connected with, there is an inclination angle between the aeration branch pipe and the aeration vertical tube；Wherein, the first sealing device and second sealing device are relatively arranged in aeration well respectively, and with the exposure The gas well borehole wall forms a closing space；AndWherein, the first sealing device, the second sealing device and aeration tube can be used as an entirety by means of lifting device It is mobile.
- 2. multisection type soil in-situ aerator as claimed in claim 1, it is characterised in that the first sealing device includes Upper bottom, bottom and side；The upper bottom of the first sealing device is that cylinder is ring-like, and the bottom of the first sealing device is ring-like for cylinder, described the The top of the side of one sealing device is closely connected with the edge at the upper bottom of the first sealing device, the first sealing device The bottom of side be closely connected with the edge of the bottom of the first sealing device, the bottom of the first sealing device it is outer Diameter matches are in the internal diameter of the aeration well.
- 3. multisection type soil in-situ aerator as claimed in claim 1, it is characterised in that second sealing device includes Upper bottom, bottom and side；The upper bottom of second sealing device is cylindrical type, and the bottom of second sealing device is ring-like for cylinder, described second The top of the side of sealing device is closely connected with the edge at the upper bottom of second sealing device, second sealing device The bottom of side is closely connected with the edge of the bottom of second sealing device, the bottom of second sealing device it is outer straight Footpath is matched with the internal diameter of the aeration well.
- 4. multisection type soil in-situ aerator as claimed in claim 1, it is characterised in that the side of the first sealing device While it is provided with support meanss；The support meanss include multi-disc spring steel plate, and the multi-disc spring steel plate is surround respectively is attached at the first sealing dress On the outside of the side put, and the upper and lower ends of the multi-disc spring steel plate are connected to the upper bottom of the first sealing device with Bottom.
- 5. multisection type soil in-situ aerator as claimed in claim 1, it is characterised in that the side of second sealing device While it is provided with support meanss；The support meanss include multi-disc spring steel plate, and the multi-disc spring steel plate is surround respectively is attached at the second sealing dress On the outside of the side put, and the upper and lower ends of the multi-disc spring steel plate are connected to the upper bottom of second sealing device with Bottom.
- 6. multisection type soil in-situ aerator as claimed in claim 1, it is characterised in that the air injection pipe is polyvinyl chloride (PVC) manage, described aeration tube is managed for polyvinyl chloride (PVC), and the lower end of the aeration tube is upper with second sealing device Bottom grafting, the aeration branch pipe are managed for polyvinyl chloride (PVC).
- 7. multisection type soil in-situ aerator as claimed in claim 1, it is characterised in that the inclination angle is 30-45 degree.
- 8. multisection type soil in-situ aerator as claimed in claim 1, it is characterised in that the making material of the sealing device Material includes urethane rubber materials.
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| CN201510674434.4A CN105251759B (en) | 2015-10-16 | 2015-10-16 | A kind of multisection type soil in-situ aerator |
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| CN201510674434.4A CN105251759B (en) | 2015-10-16 | 2015-10-16 | A kind of multisection type soil in-situ aerator |
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| CN105251759B true CN105251759B (en) | 2018-03-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297383A (en) * | 2017-08-17 | 2017-10-27 | 江阴市百顺科技有限公司 | A kind of automatic aeration control methods |
| CN108751337A (en) * | 2018-06-08 | 2018-11-06 | 常州大学 | A kind of photo catalysis reactor |
| CN109926446B (en) * | 2019-04-04 | 2020-11-10 | 中国环境科学研究院 | In-situ drug infusion system and method |
| CN110238191B (en) * | 2019-07-18 | 2021-01-08 | 深圳市朗程师地域规划设计有限公司 | Cloth net type ecological restoration method for pesticide organic matter contaminated soil |
| CN115415289A (en) * | 2022-08-19 | 2022-12-02 | 上海电力大学 | Be applied to good oxygen restoration gas injection well device of high leachate water level landfill |
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| US6305878B1 (en) * | 2000-04-03 | 2001-10-23 | The United States Of America As Represented By The Secretary Of The Navy | Adjustable depth air sparging well |
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| CN105251759A (en) | 2016-01-20 |
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