CN119972767A - Contaminated soil remediation system based on gas phase extraction and biopile coupling - Google Patents

Contaminated soil remediation system based on gas phase extraction and biopile coupling Download PDF

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Publication number
CN119972767A
CN119972767A CN202510147907.9A CN202510147907A CN119972767A CN 119972767 A CN119972767 A CN 119972767A CN 202510147907 A CN202510147907 A CN 202510147907A CN 119972767 A CN119972767 A CN 119972767A
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China
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extraction
driving
pipe
impact
cylinder
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CN202510147907.9A
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CN119972767B (en
Inventor
董茂秋
徐彬冰
杨玉怀
潘国坠
葛斐
董维维
黄赛雄
尚庆进
朱晓勇
沙勇
何登煌
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Jiangsu Shanshui Land And Resources Development Engineering Co ltd
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Jiangsu Shanshui Land And Resources Development Engineering Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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Abstract

本发明公开了基于气相抽提和生物堆耦合的污染土壤修复系统，包括车载支撑机构，连接在车载支撑机构上的气相抽提机构，以及与气相抽提机构配套使用的生物堆处理机构；车载支撑机构包括车载支撑底盘，车载支撑底盘底部固定安装有多个履带式驱动轮组；车载支撑底盘顶部转动连接有水平布置的气相抽提支撑板；气相抽提机构包括多个通过支撑臂机构连接在气相抽提支撑板顶部的气相抽提单元；本发明具备高效修复能力，多台气相抽提单元同时工作能够在一定范围内将土壤中挥发性有机污染物更加彻底的抽吸出来，且利用冲击抽提机构能够将吸附在土壤深层的挥发性有机污染物被抽吸出来，使挥发性有机污染物去除的更加彻底。

The present invention discloses a contaminated soil remediation system based on gas phase extraction and biopile coupling, comprising a vehicle-mounted support mechanism, a gas phase extraction mechanism connected to the vehicle-mounted support mechanism, and a biopile treatment mechanism used in conjunction with the gas phase extraction mechanism; the vehicle-mounted support mechanism comprises a vehicle-mounted support chassis, a plurality of crawler-type drive wheel groups are fixedly installed at the bottom of the vehicle-mounted support chassis; a horizontally arranged gas phase extraction support plate is rotatably connected to the top of the vehicle-mounted support chassis; the gas phase extraction mechanism comprises a plurality of gas phase extraction units connected to the top of the gas phase extraction support plate through a support arm mechanism; the present invention has efficient remediation capability, and a plurality of gas phase extraction units working simultaneously can more thoroughly extract volatile organic pollutants in the soil within a certain range, and the impact extraction mechanism can be used to extract volatile organic pollutants adsorbed in the deep layer of the soil, so that the volatile organic pollutants are removed more thoroughly.

Description

Polluted soil restoration system based on vapor extraction and biological pile coupling
Technical Field
The invention relates to the technical field of soil regeneration, in particular to a contaminated soil restoration system based on vapor extraction and biological pile coupling.
Background
Vapor extraction technology (Soil Vapor Extraction, SVE) is mainly used for removing volatile organic contaminants in soil, which have a tendency to change from liquid or solid state to gaseous state under certain temperature and pressure conditions. The vapor extraction technology is to set extraction well in soil and to produce negative pressure with vacuum pump or other air extracting equipment. Under the action of the negative pressure, the air in the soil pores is extracted, which volatilizes the contaminants from the soil particle surface into the gas phase. For example, in petroleum-contaminated soil, light hydrocarbon contaminants such as benzene, toluene, etc., which are highly volatile, are easily volatilized from the soil when negative pressure is generated in the extraction well;
the existing vapor extraction equipment has the defects in the aspects of extraction efficiency and further purification treatment of polluted soil, and has low removal rate of volatile organic pollutants in the soil, so that the improvement and optimization are needed.
Disclosure of Invention
The invention aims to provide a contaminated soil remediation system based on vapor extraction and biological pile coupling, which can be used for more thoroughly removing volatile organic pollutants in soil.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The contaminated soil remediation system based on vapor extraction and biological pile coupling comprises a vehicle-mounted supporting mechanism, a vapor extraction mechanism connected to the vehicle-mounted supporting mechanism and a biological pile treatment mechanism matched with the vapor extraction mechanism for use;
the vehicle-mounted supporting mechanism comprises a vehicle-mounted supporting chassis, and a plurality of crawler-type driving wheel sets are fixedly arranged at the bottom of the vehicle-mounted supporting chassis;
The top of the vehicle-mounted support chassis is rotationally connected with a vapor extraction support plate which is horizontally arranged;
The vapor extraction mechanism comprises a plurality of vapor extraction units which are connected to the top of the vapor extraction supporting plate through supporting arm mechanisms;
The vapor extraction unit comprises a vertically extending vapor extraction cylinder shell, an additional support cylinder shell is fixed in the vapor extraction cylinder shell, and extraction barrier filter cloth is fixed between the inner side wall of the vapor extraction cylinder shell and the outer side wall of the additional support cylinder shell;
The biological pile treatment mechanism comprises a biological pile supporting disc, a ventilation header pipe which extends vertically is fixed at the top of the biological pile supporting disc, a plurality of ventilation branch pipes which are communicated with the inside of the ventilation header pipe are fixed at the outer side of the ventilation header pipe, and a plurality of ventilation exhaust holes which are communicated with the inside and the outside are formed in the side wall of the ventilation branch pipes.
Preferably, the vehicle-mounted support chassis is provided with a vertically-through turret support connecting hole, the lower end of the vapor extraction support plate is fixedly provided with a turret support rotating ring, and the turret support rotating ring is rotationally connected in the turret support connecting hole;
Preferably, the vapor extraction supporting plate is provided with a central through hole which is vertically communicated, a static pressure ventilation mechanism is arranged at the central through hole and comprises a static pressure ventilation supporting plate which is connected to the top of the vapor extraction supporting plate through a static pressure driving mechanism, and a static pressure ventilation pipe which vertically extends is fixed on the static pressure ventilation supporting plate;
the lower end of the static pressure vent pipe is a tip, the upper end of the static pressure vent pipe is communicated with the atmosphere, and the side wall of the static pressure vent pipe is a porous hollow structure with the inside and the outside communicated.
Preferably, the hydrostatic drive mechanism comprises a hydrostatic drive support cylinder which is fixed at the top of the vapor extraction support plate and extends vertically, a hydrostatic drive support column is slidably connected in the hydrostatic drive support cylinder, a hydrostatic drive matching hole which is vertically communicated is formed in the hydrostatic drive support column, a hydrostatic drive shaft is connected in the hydrostatic drive matching hole in a threaded transmission manner, a hydrostatic drive accommodating shell is fixed at the top of the hydrostatic drive support cylinder, the upper end of the hydrostatic drive shaft extends into the hydrostatic drive accommodating shell, and a hydrostatic drive motor for driving the hydrostatic drive shaft to rotate is fixed in the hydrostatic drive accommodating shell;
The side wall of the static pressure driving support cylinder is provided with a static pressure moving through groove which is internally and externally communicated and vertically extends, and the static pressure driving support column is fixedly connected with the static pressure ventilation support plate through a static pressure driving connecting plate.
The static pressure ventilation mechanism is used for inserting a static pressure ventilation pipe communicated with the outside atmosphere at the center surrounded by each vapor extraction unit, so that the volatile organic pollutants in the soil can be better laterally moved.
Preferably, an impact extraction mechanism is arranged in the vapor extraction cylinder shell, the impact extraction mechanism comprises an impact extraction outer cylinder shell which is fixed in the vapor extraction cylinder shell and extends coaxially with the vapor extraction cylinder shell, and the inner side wall of the impact extraction outer cylinder shell is connected with an impact extraction inner cylinder shell in a sliding manner;
The side wall of the impact extraction outer cylinder shell is provided with a plurality of impact extraction outer through holes which are penetrated along the radial direction of the impact extraction outer cylinder shell, and the side wall of the impact extraction inner cylinder shell is provided with a plurality of impact extraction inner through holes which are penetrated along the radial direction of the impact extraction inner cylinder shell;
An inner shell driving fixed cylinder with an upward opening is fixed at the inner bottom of the vapor extraction cylinder shell, an inner shell driving sliding cylinder is connected in the inner shell driving fixed cylinder in a sliding way, and the outer end of the inner shell driving sliding cylinder is fixedly connected with the impact extraction inner cylinder shell;
An inner shell driving telescopic rod for driving the inner shell driving sliding cylinder to move up and down is arranged in the inner shell driving fixed cylinder.
The impact extraction mechanism can manufacture impact-changing air pressure in the impact extraction outer cylinder shell, and can make volatile organic pollutants adsorbed in the deep soil layer better sucked out under the action of the impact-changing air pressure.
Preferably, the support arm mechanism comprises a support arm connecting column which is fixedly connected to the top of the vapor extraction support plate and extends vertically, a support arm connecting ring is rotationally connected to the support arm connecting column, and a support arm main beam is fixed on the outer side of the support arm connecting ring;
An extraction unit connecting seat is fixed at the other end of the support arm girder, an extraction unit connecting shaft is rotatably connected to the extraction unit connecting seat, and an extraction unit support plate is fixed on the extraction unit connecting shaft;
The gas phase extraction cylinder shell is connected with the extraction unit supporting plate through an extraction lifting mechanism, the extraction lifting mechanism comprises an extraction lifting supporting cylinder which is fixed on the extraction unit supporting plate and extends vertically, an extraction lifting driving column is connected in a sliding manner in the extraction lifting supporting cylinder, a vertically through driving connecting hole is formed in the extraction lifting driving column, an extraction lifting driving shaft is connected in a threaded transmission manner in the driving connecting hole, a lifting driving accommodating shell is fixed at the top of the extraction lifting supporting cylinder, the upper end of the extraction lifting driving shaft extends into the lifting driving accommodating shell, and a lifting driving motor for driving the extraction lifting driving shaft to rotate is fixed in the lifting driving accommodating shell;
The side wall of the extraction lifting supporting cylinder is provided with a lifting moving through groove which is internally and externally communicated and vertically extends, and the extraction lifting driving column is fixedly connected with the vapor extraction cylinder shell through an extraction lifting connecting plate.
The supporting arm connecting ring can drive the vapor extraction units to move together through the supporting arm main beam, the extraction unit connecting seat and the extraction unit supporting plate, and the relative positions among the vapor extraction units are adjusted.
Preferably, the extraction unit support plate is provided with a drilling mechanism, the drilling mechanism comprises a drilling mechanism support cylinder which is fixed on the extraction unit support plate and extends vertically, and the drilling mechanism support cylinder is connected with a drilling mechanism support column in a sliding manner;
The drilling mechanism support column is provided with a vertically through drilling driving matching hole, the internal thread transmission of the drilling driving matching hole is connected with a drilling driving shaft, the top of the drilling mechanism support cylinder is fixedly provided with a drilling driving accommodating shell, the upper end of the drilling driving shaft extends into the drilling driving accommodating shell, and a drilling driving motor for driving the drilling driving shaft to rotate is fixedly arranged in the drilling driving accommodating shell;
The side wall of the drilling mechanism supporting cylinder is provided with a drilling lifting through groove which is internally and externally communicated and vertically extends, and the drilling mechanism supporting column is connected with a screw drilling machine through a drilling driving connecting plate.
The drilling mechanism is convenient for quickly drilling deep holes which meet the requirements of extraction operation on the ground, and the overall working efficiency is improved.
Preferably, the top of the vapor extraction supporting plate is fixedly provided with a negative pressure collecting and accommodating tank, the negative pressure collecting and accommodating tank is communicated with a negative pressure collecting and sucking pump, and the input end of the negative pressure collecting and sucking pump is communicated with the inside of the negative pressure collecting and accommodating tank through a pipeline;
The negative pressure collecting and accommodating tank is communicated with the inside of the vapor extraction cylinder shell through a vapor extraction main pipe, and a vapor extraction control valve is arranged on the vapor extraction main pipe;
the negative pressure collecting and accommodating tank is fixed with an exhaust gas discharge pipe communicated with the inside of the negative pressure collecting and accommodating tank, the exhaust gas discharge pipe is communicated with the input end of an exhaust gas discharge conveying pump, and an exhaust gas discharge control valve is arranged on the exhaust gas discharge pipe;
The top of the vapor extraction supporting plate is fixedly provided with an impact negative pressure accommodating tank, an impact negative pressure air pump is communicated with the impact negative pressure accommodating tank, and the input end of the impact negative pressure air pump is communicated with the inside of the impact negative pressure accommodating tank through a pipeline;
The impact negative pressure accommodating tank is communicated with the inside of the impact extraction outer cylinder shell through an impact extraction communicating pipe, and an impact extraction control valve is arranged on the impact extraction communicating pipe;
The impact negative pressure holding tank is fixedly provided with an impact outer exhaust pipe communicated with the inside of the impact negative pressure holding tank, the impact outer exhaust pipe is also communicated with the input end of the waste gas outer exhaust conveying pump, and the impact outer exhaust pipe is provided with an impact outer exhaust control valve.
Under the action of negative pressure, volatile organic pollutants in soil penetrate through the vapor extraction cylinder shell and enter the negative pressure collecting and accommodating tank to be collected through the transmission action of the vapor extraction main pipe.
Preferably, the ventilation branch pipe is provided with a ventilation opening and closing mechanism, the ventilation opening and closing mechanism comprises an opening and closing control pipe which is rotatably connected in the ventilation branch pipe and is coaxially arranged with the ventilation branch pipe, and the side wall of the opening and closing control pipe is provided with a plurality of exhaust matching holes which are radially communicated with the opening and closing control pipe;
an opening and closing driving motor for driving the opening and closing control tube to rotate around the axis of the ventilation branch tube is fixed in the ventilation branch tube.
The air conveying device is convenient to control the air conveying in soil by using the ventilation opening and closing mechanism.
Preferably, a plurality of ventilation branch pipes are arranged around the circumference of the ventilation header pipe to form a group, and a plurality of groups of ventilation branch pipes are arranged along the axial direction of the ventilation header pipe;
The outer ends of two adjacent ventilation branch pipes arranged along the axial direction of the ventilation collecting pipe are communicated through an adjacent communicating pipe;
A plurality of adjacent communication control rings are fixed in the ventilation main pipe, a plurality of adjacent communication sealing discs are fixed on the adjacent control shafts, and the adjacent communication sealing discs are in one-to-one corresponding sealing fit in each adjacent communication control ring;
the upper end of the ventilation header pipe is of a sealing structure, and the upper end adjacent to the control shaft extends to the outside of the ventilation header pipe;
an adjacent control fixed cylinder with an upward opening is fixed at the top of the outer side of the ventilation main pipe, an adjacent control sliding cylinder with a downward opening is connected in the adjacent control fixed cylinder in a sliding manner, and the outer end of the adjacent control sliding cylinder is fixedly connected with the upper end of an adjacent control shaft;
A proximity control telescopic rod for driving the proximity control sliding cylinder to move up and down is arranged in the proximity control fixed cylinder;
the inside of the biological pile supporting disc is of a hollow structure, and the lower end of the ventilation collecting pipe is communicated with the inside of the biological pile supporting disc;
The outside of the biological pile supporting disc is fixedly provided with a ventilation input pipe communicated with the inside of the biological pile supporting disc, the inside of the biological pile supporting disc is fixedly provided with a channel baffle plate extending along a vertical axis in a spiral way, the channel baffle plate divides the inside of the biological pile supporting disc into an initial input channel, one end of the initial input channel is communicated with the ventilation input pipe, and the other end of the initial input channel is communicated with the lower end of a ventilation collecting pipe;
The outer side of the upper end of the ventilation collecting pipe is fixed with a balance exhaust pipe communicated with the inner part of the ventilation collecting pipe, and the balance exhaust pipe is provided with a balance exhaust control valve.
The air ventilation control device has the advantages that the ventilation control device controls the state of the ventilation opening and closing mechanism, and the ventilation collecting pipe is internally segmented and isolated by the adjacent communication sealing disc and the adjacent communication control ring which are matched in pairs, so that the air circulation path is conveniently controlled, the temperature in soil is regulated in a hot air mode, and the heat exchange process is more uniform.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention has reasonable structural design and high-efficiency repairing capability, a plurality of vapor extraction units work simultaneously to more thoroughly suck out the volatile organic pollutants in the soil in a certain range, and the impact extraction mechanism can be utilized to suck out the volatile organic pollutants adsorbed in the deep layer of the soil, so that the volatile organic pollutants are removed more thoroughly;
2. the invention has convenient operation, can continuously degrade residual pollutants by being matched with the biological pile treatment mechanism, has the ventilation pipe which is all around in the biological pile treatment mechanism, not only can provide enough oxygen for microorganisms, but also can regulate the temperature in the soil in a heat exchange mode so as to maintain the good activity of the microorganisms;
3. according to the invention, the static pressure ventilation mechanism is utilized to insert the static pressure ventilation pipe communicated with the outside atmosphere at the center surrounded by each vapor extraction unit, so that the volatile organic pollutants in the soil can be better laterally moved;
4. the invention has wide applicability, is suitable for various pollutants including petroleum hydrocarbon pollutants, volatile organic compounds (such as benzene series, chlorinated hydrocarbon), pesticide residues and the like, and can simultaneously exist various organic pollutants in chemical pollution sites, and the system can treat the complex pollutant combinations;
5. the invention has better applicability to soil with different textures (such as sandy soil, loam, clay and the like), and can adapt by adjusting extraction parameters although the soil texture can influence the efficiency of vapor extraction, the biological pile repairing process can improve the soil structure to a certain extent, so that the system can play a role in the pollution repairing of different soil types;
6. compared with some traditional chemical restoration methods, the coupling system reduces the use of chemical agents and avoids the risk of secondary pollution;
7. in the process of repairing the biological pile, the activity of microorganisms can decompose organic pollutants, simultaneously can generate organic substances such as humus and the like, increase the fertility of soil, and substances such as polysaccharide and the like generated by the microorganisms in the metabolic process are beneficial to the agglomeration of soil particles, improve the soil structure, increase the soil porosity and are beneficial to the plant growth and the reconstruction of a soil ecological system.
Drawings
FIG. 1 is a front view of a contaminated soil remediation system of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the structure of the vapor extraction unit of the present invention;
FIG. 4 is a schematic view of the impact extraction mechanism of the present invention;
FIG. 5 is a left side view of the extraction lift mechanism of the present invention;
FIG. 6 is a schematic diagram of the structure of the bio-stack processing mechanism of the present invention;
FIG. 7 is a bottom view of the bio-stack support disc of the present invention;
FIG. 8 is a schematic view of the vent opening and closing mechanism of the present invention;
fig. 9 is a schematic view of the structure of the proximity control fixture cartridge of the present invention.
In the figure, a 10-vehicle-mounted supporting mechanism, a 11-vehicle-mounted supporting chassis, a 111-turret connecting mechanism, a 12-crawler type driving wheel set, a 13-vapor extraction supporting plate, a 130-central through hole, a 131-turret supporting rotating ring, a 20-vapor extraction mechanism, a 21-vapor extraction unit, a 210-extraction blocking filter cloth, a 211-vapor extraction cylinder shell, a 212-additional supporting cylinder shell, a 22-impact extraction mechanism, a 221-impact extraction outer cylinder shell, a 2210-impact extraction outer cylinder shell, a 222-impact extraction inner cylinder shell, a 2220-impact extraction inner cylinder shell, a 223-inner cylinder driving fixing cylinder, 224-inner shell driving sliding cylinder, 225-inner shell driving telescopic rod, 23-negative pressure collecting and accommodating tank, 231-negative pressure collecting and sucking pump, 232-gas extraction main pipe, 2320-gas extraction control valve, 233-exhaust gas discharge pipe, 2330-exhaust gas discharge control valve, 234-exhaust gas discharge conveying pump, 24-impact negative pressure accommodating tank, 241-impact negative pressure sucking pump, 242-impact extraction communicating pipe, 2420-impact extraction control valve, 243-impact discharge pipe, 2430-impact discharge control valve, 25-static pressure ventilation mechanism, 250-static pressure ventilation pipe, 251-static pressure ventilation supporting plate, 26-hydrostatic drive mechanism, 261-hydrostatic drive support cylinder, 2610-hydrostatic drive through slot, 262-hydrostatic drive support column, 2620-hydrostatic drive mating hole, 263-hydrostatic drive shaft, 264-hydrostatic drive housing, 265-hydrostatic drive motor, 266-hydrostatic drive connection plate, 30-biological pile treatment mechanism, 31-biological pile support plate, 311-ventilation input pipe, 312-channel partition plate, 32-ventilation header pipe, 321-ventilation branch pipe, 3210-ventilation exhaust hole, 322-adjacent communication pipe, 323-balance exhaust pipe, 3230-balance exhaust control valve, and, 33-ventilation opening and closing mechanism, 331-opening and closing control pipe, 3310-exhaust matching hole, 332-opening and closing driving motor, 34-near control shaft, 341-near communication control ring, 342-near communication sealing disk, 343-near control fixed cylinder, 344-near control sliding cylinder, 345-near control telescopic rod, 41-supporting arm mechanism, 411-supporting arm connecting column, 412-supporting arm connecting ring, 413-supporting arm main beam, 42-extraction unit connecting seat, 421-extraction unit connecting shaft, 422-extraction unit supporting plate, 43-extraction lifting mechanism, 431-extraction lifting supporting cylinder, 4310-lifting and moving through slots, 432-lifting and driving columns, 4320-driving connecting holes, 433-lifting and driving shafts, 434-lifting and driving accommodating shells, 435-lifting and driving motors, 436-lifting and driving connecting plates, 50-drilling mechanisms, 51-drilling mechanism supporting cylinders, 510-drilling and lifting through slots, 511-drilling mechanism supporting columns, 5110-drilling driving matching holes, 512-drilling driving shafts, 513-drilling driving accommodating shells, 514-drilling driving motors, 515-drilling driving connecting plates and 52-screw drilling machines.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 9, and for convenience of description, the orientation will be defined below such that the vertical, horizontal, front-rear directions will be identical to the vertical, horizontal, front-rear directions of the respective front views or the projection relationship of the structural schematic diagrams themselves.
Example 1A contaminated soil remediation system based on vapor extraction and biological pile coupling, as shown in FIGS. 1 and 6, comprises a vehicle-mounted supporting mechanism 10, a vapor extraction mechanism 20 connected to the vehicle-mounted supporting mechanism 10, and a biological pile treatment mechanism 30 matched with the vapor extraction mechanism 20;
As shown in fig. 1, the vehicle-mounted supporting mechanism 10 comprises a vehicle-mounted supporting chassis 11, and a plurality of crawler-type driving wheel sets 12 are fixedly arranged at the bottom of the vehicle-mounted supporting chassis 11;
the crawler-type driving wheel set 12 is a crawler-type driving wheel set assembly driven by a motor in the prior art, and a suspension supporting structure of the crawler-type driving wheel set 12 is fixedly connected with the bottom of the vehicle-mounted supporting chassis 11;
the top of the vehicle-mounted support chassis 11 is rotatably connected with a vapor extraction support plate 13 which is horizontally arranged;
As shown in fig. 1, the vapor extraction mechanism 20 includes a plurality of vapor extraction units 21 connected to the top of the vapor extraction support plate 13 by support arm mechanisms 41;
as shown in fig. 3, the vapor extraction unit 21 comprises a vapor extraction cylinder shell 211 extending vertically, an additional support cylinder shell 212 is fixed in the vapor extraction cylinder shell 211, and an extraction barrier filter cloth 210 is fixed between the inner side wall of the vapor extraction cylinder shell 211 and the outer side wall of the additional support cylinder shell 212;
The side walls of the vapor extraction cylinder shell 211 and the additional support cylinder shell 212 are porous hollow structures with the inside and the outside communicated;
The extraction blocking filter cloth 210 is a non-woven fabric of the prior art;
As shown in fig. 6, the biological reactor treatment mechanism 30 comprises a biological reactor support plate 31, a vertical ventilation header pipe 32 is fixed at the top of the biological reactor support plate 31, a plurality of ventilation branch pipes 321 communicated with the inside of the ventilation header pipe 32 are fixed at the outer side of the ventilation header pipe 32, and a plurality of ventilation exhaust holes 3210 communicated with the inside and the outside are formed in the side wall of the ventilation branch pipes 321.
As shown in fig. 1, the vehicle-mounted support chassis 11 is provided with a vertically penetrating turret support connecting hole 111, the lower end of the vapor extraction support plate 13 is fixed with a turret support rotating ring 131, and the turret support rotating ring 131 is rotatably connected in the turret support connecting hole 111;
a servo motor in the prior art is fixed on the vehicle-mounted support chassis 11, and drives the turret support rotating ring 131 to rotate around the vertical axis of the turret support connecting hole 111 through gear transmission;
As shown in fig. 3 and 4, an impact extraction mechanism 22 is arranged in the vapor extraction cylinder shell 211, the impact extraction mechanism 22 comprises an impact extraction outer cylinder shell 221 which is fixed in the vapor extraction cylinder shell 211 and extends coaxially with the vapor extraction cylinder shell, and the inner side wall of the impact extraction outer cylinder shell 221 is connected with an impact extraction inner cylinder shell 222 in a sliding manner;
The impact extraction inner cylinder housing 222 can only slide along the axial direction of the impact extraction outer cylinder housing 221;
The side wall of the impact extraction outer cylinder shell 221 is provided with a plurality of impact extraction outer through holes 2210 which are penetrated along the radial direction of the impact extraction outer cylinder shell, and the side wall of the impact extraction inner cylinder shell 222 is provided with a plurality of impact extraction inner through holes 2220 which are penetrated along the radial direction of the impact extraction inner cylinder shell;
An inner shell driving fixed cylinder 223 with an upward opening is fixed at the bottom of the vapor extraction cylinder shell 211, an inner shell driving sliding cylinder 224 is connected in the inner shell driving fixed cylinder 223 in a sliding way, and the outer end of the inner shell driving sliding cylinder 224 is fixedly connected with an impact extraction inner cylinder shell 222;
an inner shell driving telescopic rod 225 for driving the inner shell driving sliding cylinder 224 to move up and down is arranged in the inner shell driving fixed cylinder 223, the inner shell driving telescopic rod 225 is an electric control telescopic rod in the prior art, the outer rod end part of the inner shell driving telescopic rod 225 is fixedly connected with the inner bottom part of the inner shell driving fixed cylinder 223, and the inner rod end part of the inner shell driving telescopic rod 225 is fixedly connected with the inner top part of the inner shell driving sliding cylinder 224;
In the process of sliding the inner impact extraction cylinder shell 222 along the axial direction of the outer impact extraction cylinder shell 221, when each inner impact extraction through hole 2220 is communicated with each outer impact extraction through hole 2210 in a one-to-one correspondence manner, the impact extraction mechanism 22 is set to be in an "open state";
when the respective impact extraction inner through holes 2220 and the respective impact extraction outer through holes 2210 are separated from each other in a staggered manner, the impact extraction mechanism 22 is set to be in the "closed state".
Embodiment 2 on the basis of embodiment 1, as shown in FIG. 1, the support arm mechanism 41 comprises a support arm connecting column 411 fixedly connected to the top of the vapor extraction support plate 13 and extending vertically, a support arm connecting ring 412 is rotatably connected to the support arm connecting column 411, and a support arm main beam 413 is fixed outside the support arm connecting ring 412;
the support arm connection ring 412 is driven to rotate about the vertical axis of the support arm connection post 411 by a prior art servo motor fixed to the support arm connection post 411;
the other end of the support arm girder 413 is fixed with an extraction unit connecting seat 42, an extraction unit connecting shaft 421 is rotatably connected to the extraction unit connecting seat 42, and an extraction unit support plate 422 is fixed on the extraction unit connecting shaft 421;
The extraction unit connection shaft 421 is driven to rotate about a vertical axis by a prior art servo motor secured to the extraction unit connection mount 42.
As shown in fig. 5, the vapor extraction cylinder housing 211 is connected with the extraction unit support plate 422 through the extraction lifting mechanism 43, the extraction lifting mechanism 43 comprises an extraction lifting support cylinder 431 fixed on the extraction unit support plate 422 and extending vertically, an extraction lifting driving column 432 is connected in a sliding manner in the extraction lifting support cylinder 431, a driving connecting hole 4320 penetrating vertically is arranged on the extraction lifting driving column 432, an extraction lifting driving shaft 433 is connected in a threaded transmission manner in the driving connecting hole 4320, a lifting driving accommodating shell 434 is fixed at the top of the extraction lifting support cylinder 431, the upper end of the extraction lifting driving shaft 433 extends into the lifting driving accommodating shell 434, and a lifting driving motor 435 for driving the extraction lifting driving shaft 433 to rotate is fixed in the lifting driving accommodating shell 434;
The lifting driving motor 435 is a servo motor in the prior art, and an output shaft of the lifting driving motor 435 is in transmission connection with the upper end of the extraction lifting driving shaft 433 through a coupler;
The side wall of the extraction lifting support cylinder 431 is provided with a lifting moving through groove 4310 which is internally and externally communicated and vertically extends, and the extraction lifting driving column 432 is fixedly connected with the vapor extraction cylinder shell 211 through an extraction lifting connecting plate 436.
On the basis of the embodiment 2, as shown in fig. 1, a central through hole 130 vertically penetrates through the vapor extraction supporting plate 13, a static pressure ventilation mechanism 25 is arranged at the central through hole 130, the static pressure ventilation mechanism 25 comprises a static pressure ventilation supporting plate 251 connected to the top of the vapor extraction supporting plate 13 through a static pressure driving mechanism 26, the static pressure ventilation supporting plate 251 is positioned right above the central through hole 130, and a static pressure ventilation pipe 250 vertically extending is fixed on the static pressure ventilation supporting plate 251;
the lower end of the static pressure vent pipe 250 is a tip, the upper end of the static pressure vent pipe 250 is communicated with the atmosphere, and the side wall of the static pressure vent pipe 250 is a porous hollow structure with the inside and the outside communicated;
The hydrostatic drive mechanism 26 comprises a hydrostatic drive support cylinder 261 which is fixed on the top of the vapor extraction support plate 13 and extends vertically, the hydrostatic drive support cylinder 261 is slidably connected with a hydrostatic drive support column 262, the hydrostatic drive support column 262 is provided with a hydrostatic drive matching hole 2620 which is vertically communicated, a hydrostatic drive shaft 263 is connected in a threaded transmission manner in the hydrostatic drive matching hole 2620, a hydrostatic drive accommodating shell 264 is fixed on the top of the hydrostatic drive support cylinder 261, the upper end of the hydrostatic drive shaft 263 extends into the hydrostatic drive accommodating shell 264, and a hydrostatic drive motor 265 for driving the hydrostatic drive shaft 263 to rotate is fixed in the hydrostatic drive accommodating shell 264;
the static pressure driving motor 265 is a servo motor in the prior art, and an output shaft of the static pressure driving motor 265 is in transmission connection with the upper end of the static pressure driving shaft 263 through a coupler;
the side wall of the hydrostatic drive support cylinder 261 is provided with a hydrostatic drive through groove 2610 which is internally and externally communicated and vertically extends, and the hydrostatic drive support column 262 is fixedly connected with the hydrostatic drive support plate 251 through a hydrostatic drive connecting plate 266.
Embodiment 4 on the basis of embodiment 3, as shown in FIG. 5, a drilling mechanism 50 is arranged on an extraction unit supporting plate 422, the drilling mechanism 50 comprises a drilling mechanism supporting cylinder 51 which is fixed on the extraction unit supporting plate 422 and extends vertically, and a drilling mechanism supporting column 511 is connected in a sliding manner in the drilling mechanism supporting cylinder 51;
The drilling mechanism support column 511 is provided with a vertically-through drilling driving matching hole 5110, the drilling driving matching hole 5110 is internally and in threaded transmission connection with a drilling driving shaft 512, a drilling driving accommodating shell 513 is fixed at the top of the drilling mechanism support cylinder 51, the upper end of the drilling driving shaft 512 extends into the drilling driving accommodating shell 513, and a drilling driving motor 514 for driving the drilling driving shaft 512 to rotate is fixed in the drilling driving accommodating shell 513;
The drilling driving motor 514 is a servo motor in the prior art, and an output shaft of the drilling driving motor 514 is in transmission connection with the upper end of the drilling driving shaft 512 through a coupler;
The side wall of the drilling mechanism supporting cylinder 51 is provided with a drilling lifting through groove 510 which is internally and externally communicated and vertically extends, and the drilling mechanism supporting column 511 is connected with a screw drilling machine 52 through a drilling driving connecting plate 515;
The screw drill 52 is a prior art auger type drill.
In the embodiment 5, on the basis of the embodiment 4, as shown in fig. 2, a negative pressure collecting and accommodating tank 23 is fixedly arranged at the top of the vapor extraction supporting plate 13, a negative pressure collecting and accommodating pump 231 is arranged in communication with the negative pressure collecting and accommodating tank 23, and the input end of the negative pressure collecting and accommodating pump 231 is communicated with the interior of the negative pressure collecting and accommodating tank 23 through a pipeline;
The negative pressure collecting and holding tank 23 is communicated with the inside of the vapor extraction cylinder shell 211 through a vapor extraction main pipe 232, and a vapor extraction control valve 2320 is arranged on the vapor extraction main pipe 232;
the negative pressure collecting and accommodating tank 23 is fixed with an exhaust gas exhaust pipe 233 communicated with the interior of the tank, the exhaust gas exhaust pipe 233 is communicated with the input end of an exhaust gas exhaust conveying pump 234, and the exhaust gas exhaust pipe 233 is provided with an exhaust gas exhaust control valve 2330;
The top of the vapor extraction supporting plate 13 is fixedly provided with an impact negative pressure accommodating tank 24, an impact negative pressure air pump 241 is communicated with the impact negative pressure accommodating tank 24, and the input end of the impact negative pressure air pump 241 is communicated with the inside of the impact negative pressure accommodating tank 24 through a pipeline;
the impact negative pressure holding tank 24 is communicated with the inside of the impact extraction outer cylinder shell 221 through an impact extraction communicating pipe 242, and an impact extraction control valve 2420 is arranged on the impact extraction communicating pipe 242;
An impact exhaust pipe 243 communicating with the inside of the impact negative pressure accommodating tank 24 is fixed to the impact exhaust pipe 243, and the impact exhaust pipe 243 is also communicated with the input end of the exhaust gas exhaust delivery pump 234, and an impact exhaust control valve 2430 is provided to the impact exhaust pipe 243.
Embodiment 6 on the basis of embodiment 5, as shown in FIG. 8, a ventilation opening and closing mechanism 33 is arranged on a ventilation branch pipe 321, the ventilation opening and closing mechanism 33 comprises an opening and closing control pipe 331 which is rotatably connected in the ventilation branch pipe 321 and is coaxially arranged with the ventilation branch pipe, and a plurality of exhaust matching holes 3310 which are penetrated along the radial direction of the opening and closing control pipe 331 are arranged on the side wall of the opening and closing control pipe 331;
An opening and closing driving motor 332 used for driving the opening and closing control tube 331 to rotate around the axis of the ventilation branch tube 321 is fixed in the ventilation branch tube 321, the opening and closing driving motor 332 is a servo motor in the prior art, and the opening and closing driving motor 332 drives the opening and closing control tube 331 to rotate through gear and ring gear transmission;
When the opening and closing control tube 331 rotates and each exhaust matching hole 3310 is communicated with each ventilation exhaust hole 3210 in a one-to-one correspondence manner, the ventilation opening and closing mechanism 33 is in an "open state";
When each exhaust fitting hole 3310 and each exhaust vent 3210 are separated from each other by dislocation, the exhaust opening and closing mechanism 33 is in the "closed state";
As shown in fig. 6, a plurality of ventilation branch pipes 321 are arranged around the circumference of the ventilation header pipe 32 in a circle, and a plurality of groups of ventilation branch pipes 321 are arranged in the axial direction of the ventilation header pipe 32;
The outer ends of two adjacent ventilation branch pipes 321 arranged along the axial direction of the ventilation header pipe 32 are communicated through an adjacent communicating pipe 322;
The ventilation header pipe 32 is internally and slidably connected with a near control shaft 34 along the vertical direction, a plurality of near communication control rings 341 are fixed in the ventilation header pipe 32, a plurality of near communication sealing discs 342 are fixed on the near control shaft 34, and the near communication sealing discs 342 are in one-to-one corresponding sealing fit in each near communication control ring 341;
The upper end of the ventilation header pipe 32 is of a sealing structure, and the upper end adjacent to the control shaft 34 extends to the outside of the ventilation header pipe 32;
As shown in fig. 9, a proximity control fixed cylinder 343 with an upward opening is fixed at the top of the outer side of the ventilation header pipe 32, a proximity control sliding cylinder 344 with a downward opening is slidably connected to the proximity control fixed cylinder 343, and the outer end of the proximity control sliding cylinder 344 is fixedly connected to the upper end of the proximity control shaft 34;
The adjacent control fixed cylinder 343 is internally provided with an adjacent control telescopic rod 345 for driving the adjacent control sliding cylinder 344 to move up and down, the adjacent control telescopic rod 345 is an electric control telescopic rod in the prior art, the outer rod end part of the adjacent control telescopic rod 345 is fixedly connected with the inner bottom part of the adjacent control fixed cylinder 343, and the inner rod end part of the adjacent control telescopic rod 345 is fixedly connected with the inner top part of the adjacent control sliding cylinder 344;
The inside of the biological pile supporting disc 31 is of a hollow structure, and the lower end of the ventilation header pipe 32 is communicated with the inside of the biological pile supporting disc 31;
The outside of the biological pile supporting disc 31 is fixed with a ventilation input pipe 311 communicated with the inside thereof, the inside of the biological pile supporting disc 31 is fixed with a channel baffle plate 312 extending spirally along a vertical axis, the channel baffle plate 312 divides the inside of the biological pile supporting disc 31 into an initial input channel, one end of the initial input channel is communicated with the ventilation input pipe 311, and the other end of the initial input channel is communicated with the lower end of a ventilation collecting pipe 32;
A balance exhaust pipe 323 communicated with the inside of the ventilation header pipe 32 is fixed to the outer side of the upper end of the ventilation header pipe 32, and a balance exhaust control valve 3230 is provided on the balance exhaust pipe 323.
Example 7 this example describes a method for restoring contaminated soil by vapor extraction and bio-heap coupling, based on the system for restoring contaminated soil by vapor extraction and bio-heap coupling of example 1 described above, comprising the steps of:
S1, under the drive of a crawler-type driving wheel set 12, the whole system is moved to an area to be repaired, and all vapor extraction units 21 are uniformly dispersed and arranged around a vehicle-mounted supporting chassis 11;
S2, drilling a deep hole for vapor extraction on the ground by using drilling equipment in the prior art, and then placing a vapor extraction unit 21 into the deep hole for vapor extraction;
S3, extracting volatile organic pollutants in the soil by using an impact extraction mechanism 22;
the impact extraction mechanism 22 can produce impact variable air pressure in the impact extraction outer cylinder shell 221, and can better suck out volatile organic pollutants adsorbed in the deep soil under the action of the impact variable air pressure;
S4, performing microbial fermentation treatment on the extracted soil by using a biological pile treatment mechanism 30;
Crushing the extracted soil, and mixing zymophyte into the soil, wherein the adding amount of the pseudomonas aeruginosa is 5g/Kg;
The soil doped with zymophyte is piled on the biological pile supporting disk 31, air is conveyed to the inside of the biological pile supporting disk 31 by utilizing an air conveying pump in the prior art, and the air in the biological pile supporting disk 31 enters the ventilation collecting pipe 32 and then is redistributed to each ventilation branch pipe 321, so that oxygen is provided for microorganisms in the soil, and microbial fermentation treatment is carried out.
Example 8 this example describes a contaminated soil remediation method based on vapor extraction and bio-pile coupling, based on the contaminated soil remediation system based on vapor extraction and bio-pile coupling of example 2 described above, differing from example 7 in that in step S1, the support arm connection ring 412 is driven by a prior art servo motor fixed to the support arm connection column 411 to rotate about the vertical axis of the support arm connection column 411;
the support arm connecting ring 412 drives the vapor extraction units 21 to move together through the support arm main beam 413, the extraction unit connecting seat 42 and the extraction unit supporting plate 422, and the relative positions of the vapor extraction units 21 are adjusted;
the extraction unit connecting shaft 421 is driven by a servo motor of the prior art fixed on the extraction unit connecting seat 42 to rotate around a vertical axis, and the extraction unit connecting shaft 421 drives the extraction unit supporting plate 422 to rotate together with the vapor extraction unit 21, so that the vapor extraction cartridge 211 is coaxially aligned with the deep hole in the vertical direction;
The vapor extraction cylinder shell 211 stretches into the deep hole under the drive of the extraction lifting mechanism 43, and performs vapor extraction operation on the polluted soil under the action of negative pressure;
The output shaft of the lifting driving motor 435 drives the extraction lifting driving shaft 433 to rotate, under the coordination of screw transmission, the extraction lifting driving shaft 433 drives the extraction lifting driving column 432 to move downwards in the extraction lifting supporting cylinder 431, and the extraction lifting driving column 432 drives the vapor extraction cylinder shell 211 to move downwards together through the extraction lifting connection plate 436, so that the vapor extraction cylinder shell 211 stretches into a deep hole;
the upper end of the vapor extraction cylinder shell 211 is provided with a circle of convex airtight matching ring which can be tightly attached to the opening of the deep hole.
Embodiment 9 this embodiment describes a method for restoring contaminated soil based on vapor extraction and bio-pile coupling, and the contaminated soil restoration system based on vapor extraction and bio-pile coupling according to embodiment 3 is different from embodiment 8 in that in step S1, a static pressure ventilation pipe 250 communicating with the outside atmosphere is inserted at the center surrounded by each vapor extraction unit 21 by a static pressure ventilation mechanism 25, so that better lateral migration of volatile organic contaminants in the soil is facilitated;
the static pressure driving motor 265 drives the static pressure driving shaft 263 to rotate, under the cooperation of screw transmission, the static pressure driving shaft 263 drives the static pressure driving support column 262 to move downwards in the static pressure driving support cylinder 261, and the static pressure driving support column 262 drives the static pressure ventilation support plate 251 to move downwards together with the static pressure ventilation pipe 250 through the static pressure driving connecting plate 266, so that the tip end of the static pressure ventilation pipe 250 is inserted into soil under the action of static pressure.
In the present embodiment, the method for restoring contaminated soil based on vapor extraction and bio-pile coupling is described, and the contaminated soil restoration system based on vapor extraction and bio-pile coupling according to the above-described embodiment 4 is different from the embodiment 9 in that in the step S2, a deep hole for vapor extraction is drilled on the ground by using a drilling mechanism 50, firstly, a screw drilling machine 52 is started, an output shaft of a drilling driving motor 514 drives a drilling driving shaft 512 to rotate, the drilling driving shaft 512 drives a drilling mechanism support column 511 to move down in a drilling mechanism support cylinder 51 under the cooperation of screw transmission, the drilling mechanism support column 511 drives the screw drilling machine 52 to move down together by a drilling driving connection plate 515, and the deep hole is drilled on the ground by using a screw rod of the screw drilling machine 52;
The output shaft of the drill drive motor 514 is then reversed and the screw drill 52 is driven upward by the drill drive shaft 512 and the drill support column 511 to withdraw the screw drill 52 from the borehole.
In the embodiment 11, the method for restoring contaminated soil based on vapor extraction and biological pile coupling is described, and the contaminated soil restoration system based on vapor extraction and biological pile coupling according to the embodiment 5 is different from the embodiment 10 in that in the step S2, the inside of the negative pressure collecting and accommodating tank 23 is vacuumized by the negative pressure collecting and sucking pump 231, and after the pressure in the negative pressure collecting and accommodating tank 23 reaches 10 -2 Pa, the vapor extraction control valve 2320 is started, the negative pressure collecting and accommodating tank 23 is communicated with the vapor extraction cylinder shell 211 through the vapor extraction cylinder shell 232, and under the action of negative pressure, volatile organic pollutants in soil enter the negative pressure collecting and accommodating tank 23 through the vapor extraction cylinder shell 211 through the transmission action of the vapor extraction cylinder shell 232;
the tail gas treatment equipment matched with the system in the prior art can carry out purification treatment on volatile organic pollutants in soil;
When the air pressure in the negative pressure collecting and accommodating tank 23 is balanced with the outside, the air-phase extraction control valve 2320 is closed, the exhaust gas discharge conveying pump 234 is started, the exhaust gas discharge control valve 2330 is opened, and the exhaust gas collected in the negative pressure collecting and accommodating tank 23 is conveyed to the tail gas treatment equipment in the prior art for purification treatment;
And then the negative pressure collecting and accommodating tank 23 is repeatedly vacuumized, and volatile organic pollutants in the soil are continuously collected under the action of negative pressure.
In the present embodiment, the method for restoring contaminated soil based on vapor extraction and bio-pile coupling is described, and the contaminated soil restoration system based on vapor extraction and bio-pile coupling according to the above embodiment 5 is different from embodiment 11 in that in step S3, the inside of the surge negative pressure holding tank 24 is first vacuumized by the surge negative pressure suction pump 241, and after the pressure in the surge negative pressure holding tank 24 reaches 10 -2 Pa, the surge negative pressure holding tank is stopped, and the surge extraction control valve 2420 is opened to allow the surge negative pressure holding tank 24 to communicate with the inside of the surge extraction outer cylinder shell 221 through the surge extraction communicating pipe 242;
In the process of sliding the inner impact extraction cylinder shell 222 along the axial direction of the outer impact extraction cylinder shell 221, when each inner impact extraction through hole 2220 is communicated with each outer impact extraction through hole 2210 in a one-to-one correspondence manner, the impact extraction mechanism 22 is set to be in an "open state";
when each of the impact extraction inner through holes 2220 and each of the impact extraction outer through holes 2210 are isolated from each other in a staggered manner, the impact extraction mechanism 22 is set to be in the "off state";
Then, the inner shell driving the inner rod of the telescopic rod 225 is driven by the reciprocating extension and retraction, and the impact extraction inner shell 222 moves reciprocally along the axis of the impact extraction outer shell 221, so that the impact extraction mechanism 22 is switched between an 'open state' and a 'closed state' in a circulating and reciprocating manner;
When the impact extraction mechanism 22 is in an 'open state', the inside of the impact extraction outer cylinder shell 221 is communicated with the inside of the vapor extraction cylinder shell 211 through the impact extraction outer through hole 2210 and the impact extraction inner through hole 2220, so that the volatile organic pollutants adsorbed in the deep soil layer are sucked out under the action of the impact changing air pressure, and are conveyed into the impact negative pressure containing tank 24 to be collected under the conveying action of the impact extraction communicating pipe 242;
When the air pressure in the surge negative pressure holding tank 24 is balanced with the outside, the surge extraction control valve 2420 is closed, the exhaust gas discharge transfer pump 234 is started, the surge discharge control valve 2430 is opened, and the exhaust gas collected in the surge negative pressure holding tank 24 is transferred to the exhaust gas treatment apparatus of the prior art for purification treatment.
Example 13 this example describes a method for restoring contaminated soil by vapor extraction and bio-pile coupling, which is based on the contaminated soil restoration system by vapor extraction and bio-pile coupling of example 6 above, and differs from example 12 in that it further comprises step S5;
s5, fermentation temperature adjustment:
An opening and closing driving motor 332 used for driving the opening and closing control tube 331 to rotate around the axis of the ventilation branch tube 321 is fixed in the ventilation branch tube 321, the opening and closing driving motor 332 is a servo motor in the prior art, and the opening and closing driving motor 332 drives the opening and closing control tube 331 to rotate through gear and ring gear transmission;
When the opening and closing control tube 331 rotates and each exhaust matching hole 3310 is communicated with each ventilation exhaust hole 3210 in a one-to-one correspondence manner, the ventilation opening and closing mechanism 33 is in an "open state";
When each exhaust fitting hole 3310 and each exhaust vent 3210 are separated from each other by dislocation, the exhaust opening and closing mechanism 33 is in the "closed state";
And the adjacent control shaft 34 is moved downwards under the drive of the adjacent control telescopic rod 345, so that the adjacent communication sealing discs 342 are in one-to-one corresponding sealing fit in each adjacent communication control ring 341, and the inside of the ventilation header pipe 32 is segmented and isolated;
When the temperature of the soil is required to be regulated, the ventilation opening and closing mechanism 33 is in a closed state, hot air is conveyed into the biological pile supporting disc 31 through the ventilation input pipe 311 by utilizing an air conveying pump in the prior art, and the hot air in the biological pile supporting disc 31 sequentially passes through each ventilation branch pipe 321 from bottom to top after entering the ventilation main pipe 32 due to the communication effect of the adjacent communication pipe 322, so that the hot air can fully exchange heat with the soil, the temperature of the soil is regulated, and the microbial activity is improved;
A plurality of groups of ventilation component pipes 321 arranged in the axial direction of the ventilation header pipe 32 are numbered from bottom to top, and are L 1、L2、L3、L4.
The outer ends of the L 1 and the L 2 are communicated in one-to-one correspondence through the adjacent communicating pipes 322;
The outer ends of the L 3 and the L 4 are communicated in one-to-one correspondence through the adjacent communicating pipes 322, and so on;
The adjacent communication closing disc 342 and the adjacent communication control ring 341 used in combination in pairs are numbered from bottom to top, and are Z 1、Z2、Z3、Z4.
Z 1 is blocked from position within the vent header 32 between L 1 and L 2 such that L 1 communicates with L 2 only through the proximal communication tube 322, while L 2 communicates with L 3 through the vent header 32;
Z 2 is blocked from being positioned within the vent header 32 between L 3 and L 4 such that L 3 and L 4 are in communication only through the adjacent communication tube 322, while L 4 and L 5 continue to be in communication through the vent header 32, and so on.
Example 14 the difference from example 13 is that the fermentation bacteria which are mixed in the soil are Pseudomonas aeruginosa and bacillus according to the mass ratio of 1:2, and the adding amount is 10g/Kg.
Example 15 the difference from example 13 is that the fermentation tubes added into the soil are mixed with rhodococcus and white rot fungi according to the mass ratio of 1:2, and the adding amount is 20g/Kg.
Example 16 the difference from example 13 is that the fermentation tubes added into the soil are Aspergillus niger and Streptomyces and the addition amount is 30g/Kg, which are mixed according to the mass ratio of 1:2.

Claims (10)

1. The contaminated soil remediation system based on vapor extraction and biological pile coupling is characterized by comprising a vehicle-mounted supporting mechanism (10), a vapor extraction mechanism (20) connected to the vehicle-mounted supporting mechanism (10), and a biological pile treatment mechanism (30) matched with the vapor extraction mechanism (20);
the vehicle-mounted supporting mechanism (10) comprises a vehicle-mounted supporting chassis (11), and a plurality of crawler-type driving wheel sets (12) are fixedly arranged at the bottom of the vehicle-mounted supporting chassis (11);
the top of the vehicle-mounted supporting chassis (11) is rotatably connected with a horizontally arranged vapor extraction supporting plate (13);
The vapor extraction mechanism (20) comprises a plurality of vapor extraction units (21) connected to the top of the vapor extraction support plate (13) through a support arm mechanism (41);
The vapor extraction unit (21) comprises a vertically extending vapor extraction cylinder shell (211), an additional support cylinder shell (212) is fixed in the vapor extraction cylinder shell (211), and extraction barrier filter cloth (210) is fixed between the inner side wall of the vapor extraction cylinder shell (211) and the outer side wall of the additional support cylinder shell (212);
The biological pile treatment mechanism (30) comprises a biological pile supporting disc (31), a ventilation header pipe (32) which extends vertically is fixed at the top of the biological pile supporting disc (31), a plurality of ventilation branch pipes (321) communicated with the inside of the ventilation header pipe (32) are fixed at the outer side of the ventilation header pipe, and a plurality of ventilation exhaust holes (3210) which are communicated with the inside and the outside are formed in the side wall of the ventilation branch pipe (321).
2. The contaminated soil remediation system based on vapor extraction and bio-pile coupling according to claim 1, wherein the vehicle-mounted support chassis (11) is provided with a vertically penetrating turret support connection hole (111), a turret support swivel ring (131) is fixed at the lower end of the vapor extraction support plate (13), and the turret support swivel ring (131) is rotatably connected in the turret support connection hole (111).
3. The contaminated soil remediation system based on vapor extraction and bio-pile coupling according to claim 1 wherein the vapor extraction support plate (13) has a central through hole (130) vertically therethrough, a static pressure aeration mechanism (25) is provided at the central through hole (130), the static pressure aeration mechanism (25) comprises a static pressure aeration support plate (251) connected to the top of the vapor extraction support plate (13) by a static pressure drive mechanism (26), and a static pressure aeration pipe (250) vertically extending is fixed to the static pressure aeration support plate (251);
The lower end of the static pressure vent pipe (250) is a tip, the upper end of the static pressure vent pipe (250) is communicated with the atmosphere, and the side wall of the static pressure vent pipe (250) is of a porous hollow structure with the inside and the outside communicated.
4. A contaminated soil remediation system based on vapor extraction and bio-pile coupling according to claim 3 wherein the hydrostatic drive mechanism (26) comprises a hydrostatic drive support cylinder (261) fixed on top of the vapor extraction support plate (13) and extending vertically, the hydrostatic drive support cylinder (261) is slidably connected with a hydrostatic drive support column (262), the hydrostatic drive support column (262) is provided with a hydrostatic drive mating hole (2620) penetrating vertically, a hydrostatic drive shaft (263) is connected in a threaded transmission manner in the hydrostatic drive mating hole (2620), a hydrostatic drive accommodating shell (264) is fixed on top of the hydrostatic drive support cylinder (261), the upper end of the hydrostatic drive shaft (263) extends into the hydrostatic drive accommodating shell (264), and a hydrostatic drive motor (265) for driving the hydrostatic drive shaft (263) to rotate is fixed in the hydrostatic drive accommodating shell (264);
The side wall of the static pressure driving support cylinder (261) is provided with a static pressure moving through groove (2610) which is internally and externally communicated and vertically extends, and the static pressure driving support column (262) is fixedly connected with the static pressure ventilation support plate (251) through a static pressure driving connecting plate (266).
5. The contaminated soil remediation system based on vapor extraction and bio-pile coupling of claim 1 wherein an impact extraction mechanism (22) is disposed within the vapor extraction cartridge (211), the impact extraction mechanism (22) comprising an impact extraction outer cartridge (221) secured within the vapor extraction cartridge (211) and extending coaxially therewith, the impact extraction inner cartridge (222) being slidably connected to the inner sidewall of the impact extraction outer cartridge (221);
The side wall of the impact extraction outer cylinder shell (221) is provided with a plurality of impact extraction outer through holes (2210) which are penetrated along the radial direction of the impact extraction outer cylinder shell, and the side wall of the impact extraction inner cylinder shell (222) is provided with a plurality of impact extraction inner through holes (2220) which are penetrated along the radial direction of the impact extraction inner cylinder shell;
An inner shell driving fixed cylinder (223) with an upward opening is fixed at the inner bottom of the vapor extraction cylinder shell (211), an inner shell driving sliding cylinder (224) is connected in the inner shell driving fixed cylinder (223) in a sliding way, and the outer end of the inner shell driving sliding cylinder (224) is fixedly connected with the impact extraction inner cylinder shell (222);
an inner shell driving telescopic rod (225) for driving the inner shell driving sliding cylinder (224) to move up and down is arranged in the inner shell driving fixed cylinder (223).
6. The contaminated soil remediation system based on vapor extraction and bio-pile coupling according to claim 1 wherein the support arm mechanism (41) comprises a support arm connection column (411) fixedly connected to the top of the vapor extraction support plate (13) and extending vertically, a support arm connection ring (412) is rotatably connected to the support arm connection column (411), and a support arm girder (413) is fixed to the outer side of the support arm connection ring (412);
An extraction unit connecting seat (42) is fixed at the other end of the support arm main beam (413), an extraction unit connecting shaft (421) is rotatably connected to the extraction unit connecting seat (42), and an extraction unit support plate (422) is fixed on the extraction unit connecting shaft (421);
The gas phase extraction cylinder shell (211) is connected with the extraction unit supporting plate (422) through an extraction lifting mechanism (43), the extraction lifting mechanism (43) comprises an extraction lifting supporting cylinder (431) which is fixed on the extraction unit supporting plate (422) and extends vertically, an extraction lifting driving column (432) is connected in a sliding mode in the extraction lifting supporting cylinder (431), a vertically through driving connecting hole (4320) is formed in the extraction lifting driving column (432), an extraction lifting driving shaft (433) is connected in an internal thread transmission mode in the driving connecting hole (4320), a lifting driving accommodating shell (434) is fixed at the top of the extraction lifting supporting cylinder (431), the upper end of the extraction lifting driving shaft (433) extends into the lifting driving accommodating shell (434), and a lifting driving motor (435) for driving the extraction lifting driving shaft (433) to rotate is fixed in the lifting driving accommodating shell (434).
The side wall of the extraction lifting support cylinder (431) is provided with a lifting movement through groove (4310) which is internally and externally communicated and vertically extends, and the extraction lifting driving column (432) is fixedly connected with the vapor extraction cylinder shell (211) through an extraction lifting connecting plate (436).
7. The contaminated soil remediation system based on vapor extraction and bio-pile coupling of claim 1 wherein the extraction unit support plate (422) is provided with a drilling mechanism (50), the drilling mechanism (50) comprising a vertically extending drilling mechanism support cylinder (51) secured to the extraction unit support plate (422), the drilling mechanism support cylinder (51) being slidably connected with a drilling mechanism support column (511);
The drilling mechanism support column (511) is provided with a vertically through drilling driving matching hole (5110), the drilling driving matching hole (5110) is internally connected with a drilling driving shaft (512) in a threaded transmission manner, the top of the drilling mechanism support cylinder (51) is fixedly provided with a drilling driving accommodating shell (513), the upper end of the drilling driving shaft (512) extends into the drilling driving accommodating shell (513), and a drilling driving motor (514) for driving the drilling driving shaft (512) to rotate is fixedly arranged in the drilling driving accommodating shell (513);
The side wall of the drilling mechanism supporting cylinder (51) is provided with a drilling lifting through groove (510) which is internally and externally communicated and vertically extends, and the drilling mechanism supporting column (511) is connected with a screw drilling machine (52) through a drilling driving connecting plate (515).
8. The contaminated soil remediation system based on vapor extraction and biological pile coupling according to claim 1, wherein a negative pressure collecting and accommodating tank (23) is fixedly arranged at the top of the vapor extraction supporting plate (13), a negative pressure collecting and sucking pump (231) is arranged in communication with the negative pressure collecting and accommodating tank (23), and the input end of the negative pressure collecting and sucking pump (231) is communicated with the interior of the negative pressure collecting and accommodating tank (23) through a pipeline;
The negative pressure collecting and accommodating tank (23) is communicated with the inside of the vapor extraction cylinder shell (211) through a vapor extraction main pipe (232), and a vapor extraction control valve (2320) is arranged on the vapor extraction main pipe (232);
An exhaust gas discharge pipe (233) communicated with the inside of the negative pressure collecting and accommodating tank (23) is fixed on the negative pressure collecting and accommodating tank, the exhaust gas discharge pipe (233) is communicated with the input end of an exhaust gas discharge conveying pump (234), and an exhaust gas discharge control valve (2330) is arranged on the exhaust gas discharge pipe (233);
An impact negative pressure accommodating tank (24) is fixedly arranged at the top of the vapor extraction supporting plate (13), an impact negative pressure air pump (241) is communicated with the impact negative pressure accommodating tank (24), and the input end of the impact negative pressure air pump (241) is communicated with the inside of the impact negative pressure accommodating tank (24) through a pipeline;
The impact negative pressure accommodating tank (24) is communicated with the inside of the impact extraction outer cylinder shell (221) through an impact extraction communicating pipe (242), and an impact extraction control valve (2420) is arranged on the impact extraction communicating pipe (242);
an impact outer exhaust pipe (243) communicated with the inside of the impact negative pressure accommodating tank (24) is fixed on the impact negative pressure accommodating tank, the impact outer exhaust pipe (243) is also communicated with the input end of the exhaust gas outer exhaust conveying pump (234), and an impact outer exhaust control valve (2430) is arranged on the impact outer exhaust pipe (243).
9. The contaminated soil remediation system based on vapor extraction and bio-pile coupling according to claim 1, wherein a ventilation opening and closing mechanism (33) is provided on the ventilation branch pipe (321), the ventilation opening and closing mechanism (33) comprises an opening and closing control pipe (331) rotatably connected in the ventilation branch pipe (321) and coaxially arranged with the ventilation branch pipe, and a plurality of exhaust matching holes (3310) penetrating along the radial direction of the opening and closing control pipe (331) are provided on the side wall of the opening and closing control pipe (331);
An opening and closing driving motor (332) used for driving the opening and closing control tube (331) to rotate around the axis of the ventilation branch tube (321) is fixed in the ventilation branch tube (321).
10. The contaminated soil remediation system based on vapor extraction and bio-stack coupling of claim 1 wherein a plurality of the aeration sub-pipes (321) are arranged in a circle around the aeration header pipe (32) as a group, and a plurality of groups of aeration sub-pipes (321) are arranged in an axial direction of the aeration header pipe (32);
The outer ends of two adjacent ventilation branch pipes (321) which are arranged along the axial direction of the ventilation collecting pipe (32) are communicated through an adjacent communicating pipe (322);
a proximity control shaft (34) is slidably connected in the ventilation header pipe (32) along the vertical direction, a plurality of proximity communication control rings (341) are fixed in the ventilation header pipe (32), a plurality of proximity communication sealing discs (342) are fixed on the proximity control shaft (34), and the proximity communication sealing discs (342) are in one-to-one correspondence and are hermetically matched in each proximity communication control ring (341);
The upper end of the ventilation header pipe (32) is of a sealing structure, and the upper end of the adjacent control shaft (34) extends to the outside of the ventilation header pipe (32);
an upward opening proximity control fixed cylinder (343) is fixed at the top of the outer side of the ventilation header pipe (32), a downward opening proximity control sliding cylinder (344) is connected in a sliding manner in the proximity control fixed cylinder (343), and the outer end of the proximity control sliding cylinder (344) is fixedly connected with the upper end of the proximity control shaft (34);
a proximity control telescopic rod (345) for driving the proximity control sliding cylinder (344) to move up and down is arranged in the proximity control fixed cylinder (343);
the inside of the biological pile supporting disc (31) is of a hollow structure, and the lower end of the ventilation header pipe (32) is communicated with the inside of the biological pile supporting disc (31);
A ventilation input pipe (311) communicated with the inside of the biological pile supporting disc (31) is fixed on the outer side of the biological pile supporting disc (31), a channel partition plate (312) extending along a vertical axis in a spiral mode is fixed in the biological pile supporting disc (31), the channel partition plate (312) divides the inside of the biological pile supporting disc (31) into an initial input channel, one end of the initial input channel is communicated with the ventilation input pipe (311), and the other end of the initial input channel is communicated with the lower end of the ventilation collecting pipe (32);
a balance exhaust pipe (323) communicated with the inside of the ventilation collecting pipe (32) is fixed on the outer side of the upper end of the ventilation collecting pipe, and a balance exhaust control valve (3230) is arranged on the balance exhaust pipe (323).
CN202510147907.9A 2025-02-11 2025-02-11 Polluted soil restoration system based on vapor extraction and biological pile coupling Active CN119972767B (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546830A (en) * 1983-07-13 1985-10-15 Pump Engineer Associates, Inc. Methods and apparatus for recovery of hydrocarbons from underground water tables
US20040240942A1 (en) * 2002-05-22 2004-12-02 Richter Roger Todd Method and system for remediating contaminated soil
KR20110124742A (en) * 2011-11-01 2011-11-17 에이치플러스에코 주식회사 High pressure cleaning system of contaminated soil with drainage well and its driving method
CN105234164A (en) * 2015-11-23 2016-01-13 中国科学院地理科学与资源研究所 Ectopic biological reactor gas-phase extraction/biological ventilation repair device and method of organic contaminated soil
CN212264157U (en) * 2020-02-28 2021-01-01 福建省众源环保科技有限公司 Normal position gas thermal desorption soil prosthetic devices
CN113020235A (en) * 2021-03-31 2021-06-25 兰州大学 Soil ecological remediation device
CN114560562A (en) * 2022-04-18 2022-05-31 成都理工大学 A functional component of a bioreactor in a groundwater circulation well and its use method
CN116213443A (en) * 2023-01-16 2023-06-06 江苏省无锡探矿机械总厂有限公司 A Soil Vapor Phase Extraction In-Situ Restoration System
CN221086723U (en) * 2023-05-25 2024-06-07 郭明先 A microbial remediation system for organically contaminated soil
CN222090088U (en) * 2024-04-15 2024-12-03 西华大学 Soil aeration device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546830A (en) * 1983-07-13 1985-10-15 Pump Engineer Associates, Inc. Methods and apparatus for recovery of hydrocarbons from underground water tables
US20040240942A1 (en) * 2002-05-22 2004-12-02 Richter Roger Todd Method and system for remediating contaminated soil
KR20110124742A (en) * 2011-11-01 2011-11-17 에이치플러스에코 주식회사 High pressure cleaning system of contaminated soil with drainage well and its driving method
CN105234164A (en) * 2015-11-23 2016-01-13 中国科学院地理科学与资源研究所 Ectopic biological reactor gas-phase extraction/biological ventilation repair device and method of organic contaminated soil
CN212264157U (en) * 2020-02-28 2021-01-01 福建省众源环保科技有限公司 Normal position gas thermal desorption soil prosthetic devices
CN113020235A (en) * 2021-03-31 2021-06-25 兰州大学 Soil ecological remediation device
CN114560562A (en) * 2022-04-18 2022-05-31 成都理工大学 A functional component of a bioreactor in a groundwater circulation well and its use method
CN116213443A (en) * 2023-01-16 2023-06-06 江苏省无锡探矿机械总厂有限公司 A Soil Vapor Phase Extraction In-Situ Restoration System
CN221086723U (en) * 2023-05-25 2024-06-07 郭明先 A microbial remediation system for organically contaminated soil
CN222090088U (en) * 2024-04-15 2024-12-03 西华大学 Soil aeration device

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