CN116441270A - Odor cleaning and controlling system for pesticide polluted land soil and application method - Google Patents
Odor cleaning and controlling system for pesticide polluted land soil and application method Download PDFInfo
- Publication number
- CN116441270A CN116441270A CN202310361401.9A CN202310361401A CN116441270A CN 116441270 A CN116441270 A CN 116441270A CN 202310361401 A CN202310361401 A CN 202310361401A CN 116441270 A CN116441270 A CN 116441270A
- Authority
- CN
- China
- Prior art keywords
- air
- peculiar smell
- wall
- plate wall
- air supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 37
- 238000004140 cleaning Methods 0.000 title claims abstract description 33
- 239000000575 pesticide Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 24
- 238000003860 storage Methods 0.000 claims description 23
- 238000001179 sorption measurement Methods 0.000 claims description 19
- 238000009412 basement excavation Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 206010039101 Rhinorrhoea Diseases 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 208000010753 nasal discharge Diseases 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- CKAPSXZOOQJIBF-UHFFFAOYSA-N hexachlorobenzene Chemical compound ClC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl CKAPSXZOOQJIBF-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a system for controlling and controlling peculiar smell of soil cleaning of a pesticide polluted land and an application method, wherein the system comprises a power supply system, an air supply system and an peculiar smell air treatment system, wherein the air supply system is preferably built on the wind direction on the boundary of a cleaning foundation pit, consists of an air supply plate wall embedded with a fan, a fixing strip and the like, and is fixed on a wheel type sliding block through bolts; the power supply system controls the embedded fan to rotate through the cable to form air flow, and the odor air volatilized by the foundation pit is blown to the air collecting plate wall; after the peculiar smell air treatment system is started, a negative pressure flow field is formed near the air collecting area of the air collecting plate wall, peculiar smell air is pumped into the peculiar smell air treatment system, meanwhile, the upper part of the foundation pit is cleared to form an air flow field, and peculiar smell air continuously flows to the air collecting plate from one side of the air supply plate; the tail end of the system is distinguished according to the air peculiar smell concentration, the air with low pollution concentration is adsorbed by the activated carbon and then discharged after reaching the standard, and the air with high pollution concentration is comprehensively utilized or treated according to relevant standards after being condensed and liquefied.
Description
Technical Field
The invention belongs to the field of odor control of pesticide-polluted land, and particularly relates to a system for controlling odor of soil cleaning and digging of pesticide-polluted land and an application method.
Background
In the later 50 s of the 20 th century, pesticide production enterprises in China are rapidly developed, and a large amount of raw medicines of six, six and drop nasal discharge are produced; 666. in the production process of the drop nasal discharge, great pollution and toxicity hazard exist, and since 3 months in 1983, the production of the pesticide with six and six drops is stopped in China, and the structure of the pesticide product is adjusted. At present, along with the closing and moving of pollution discharge enterprises such as urban pesticide factories, chemical plants and dye factories, historical six-six and drop-nasal discharge pesticide production plots exist, and pollution phenomena of six-six and drop-nasal discharge with different degrees generally exist, so that repair and treatment are needed.
Common pesticide contaminated soil restoration technologies comprise an ectopic thermal desorption technology, a cement kiln cooperative treatment technology and the like, pesticide contaminated soil is required to be cleared in the application process of the restoration technologies, and chemical substances such as hexa-hexa, drips, benzene series, halogenated substances (tetrachloroethylene and trichloroethylene), sulfides (dimethyl sulfide and dimethyl disulfide) and ammonia have low odor threshold values in the clearing process, and the soil has strong malodor and peculiar smell, has prominent neighbor effect and has large secondary pollution environmental influence, so that odorous gas released in the clearing process is required to be collected.
The patent of the invention with the authority of publication number of [ CN 103349884B ] discloses a collection and treatment device for the unorganized emission of volatile/semi-volatile gas in a polluted site, wherein the gas enters a tail gas treatment system through a gas collection and conveying pipeline and is discharged after reaching the standard, so that the collection and treatment problems of the unorganized emission of the volatile/semi-volatile gas before or after the cleaning of polluted soil are solved to a certain extent. But this scheme is through carrying out the cover to the polluted land parcel before the clear dig or after the clear dig, then collects the gas of handling the emission, in the polluted soil clear dig the work progress, carries out whole cover to the polluted area and is unfavorable for the clear soil of digging, and is inconvenient for changing clear dig the place operation, and the operation is consuming time and with high costs, and this kind of mode practical application value is lower, can't realize carrying out the purpose of peculiar smell management and control while clear dig the polluted soil.
Disclosure of Invention
The invention provides a system and an application method for controlling the odor of the soil in the excavation of a pesticide polluted land, which are used for solving the defect of odor collection of the excavation foundation pit in the prior art, and the system and the application method are combined with the design of an air supply plate wall and an air collecting plate wall to realize the purpose of controlling the odor of the soil in the excavation and effectively collecting the odor of the excavation area.
The invention is realized by adopting the following technical scheme: the system comprises a power supply system, an air supply system and an odor air treatment system, wherein the power supply system provides electric energy for the air supply system and the odor air treatment system;
the air supply system is built at the upwind position outside the boundary of the excavated foundation pit and comprises an air supply plate wall and fixing strips, a plurality of fans are mounted on the air supply plate wall, the fans are connected with the power supply system through cables, and the air supply plate wall is fixed with the ground through the fixing strips;
the peculiar smell air treatment system comprises an air collecting plate wall, a negative pressure Roots blower and an air storage box, wherein the air collecting plate wall and the air supply plate wall are oppositely arranged, an air collecting area is arranged on the air collecting plate wall, the top of the air collecting plate wall is inclined towards the direction of a foundation pit to be excavated, the air collecting area is in a horn shape, a plurality of air collecting openings are uniformly distributed on the air collecting area and communicated with an air collecting hose, the inlet end of the negative pressure Roots blower is connected with the air collecting hose, the outlet end of the negative pressure Roots blower is connected with the air storage box, and an air one-way valve is arranged on a pipeline at the outlet end;
the fan of the air supply system rotates to form air flow, and the odor air volatilized by the foundation pit is blown to the air collecting plate wall; after the peculiar smell air treatment system is started, a negative pressure flow field is formed near the air collecting area, peculiar smell air is pumped into the peculiar smell air treatment system, meanwhile, the upper part of the foundation pit is cleared to form an air flow field, and peculiar smell air continuously flows to the air collecting plate wall from one side of the air supply plate wall, so that the collection of the peculiar smell air is realized.
Further, the both sides underground of air supply board wall and receipts wind board wall all is provided with U type spout, sets up wheeled sliding block in the U type spout, and the bottom and the left and right sides of wheeled sliding block set up the runner, and wheeled sliding block is inside to set up driving motor, and wheeled sliding block slides along U type spout under driving motor drive to realize the removal of air supply board wall and receipts wind board wall.
Further, the tail end of the air storage box is connected with an air liquefying unit and an adsorption discharging unit, and corresponding electromagnetic valves and electromagnetic pumps are arranged between the air storage box and the air liquefying unit and between the air storage box and the adsorption discharging unit;
the air liquefying unit is used for condensing, liquefying and storing peculiar smell air, the PID detecting unit is arranged at the upper part of the air storage box, detecting the concentration of polluted air sent to the air storage box by the negative pressure Roots blower, and feeding back a signal source to the electromagnetic valve and the electromagnetic pump; when the PID detection value is larger than the set value, only opening an electromagnetic valve and an electromagnetic pump on a pipeline at the front end of the polluted air liquefying unit; when the PID detection value is smaller than the set value, only opening an electromagnetic valve and an electromagnetic pump on a pipeline at the front end of the adsorption and discharge unit;
the adsorption and discharge unit is internally filled with activated carbon, the tail end of the adsorption and discharge unit is provided with a discharge chimney, and the adsorption and discharge unit adsorbs air and then discharges the air after reaching the standard.
Further, the power supply system utilizes light energy to store electricity, and comprises a light energy conversion electric energy unit, a power supply transformer and an electric power unit, wherein the light energy conversion electric energy unit is a solar photovoltaic panel, and generated electric energy is transmitted to the electric power unit through a cable to be stored.
Furthermore, fireproof cotton is filled in the air supply plate wall and the air collecting plate wall, the height of the air supply plate wall is larger than 2m, the thickness of the air supply plate wall is 10cm-20cm, and the height of the air collecting plate wall is higher than that of the air supply plate wall.
Further, the top of air supply board wall and receipts wind board wall is fixed through the board wall strut, and the board wall strut is whole to be netted square steelframe, and air supply board wall and receipts wind board wall are inserted at both ends and are fixed through the board wall outside bolt body.
Furthermore, an illuminating lamp or a spray head is arranged on the plate wall support.
Furthermore, the air supply plate walls are spliced and connected, four fans are uniformly installed on each air supply plate wall, and the air supply plate wall and the air receiving plate wall are continuously built and detached or moved to be used along with the condition of digging a foundation pit.
The invention further provides an application method of the system for controlling the odor of the soil cleaning of the pesticide-polluted land, which comprises the following steps:
step one: rechecking a detailed survey report of land block pollution, and clearly cleaning the boundary of a foundation pit by pollution and marking;
step two: the peculiar smell area is confirmed by combining manual and rapid detection instruments, and a cleaning and digging mode of peculiar smell polluted soil is planned;
step three: building a power supply system, an air supply system and an odor air treatment system;
step four: after the air supply system is started, the polluted soil is cleaned, and the peculiar smell air treatment system is gradually started: when the PID detection value is larger than the set value, collecting the peculiar smell air into an air liquefying unit; when the PID detection value is smaller than the set value, the peculiar smell is collected into a discharge unit in a control way, and is discharged after being adsorbed by the activated carbon;
step five: and the air supply plate wall and the air collecting plate wall are moved to realize comprehensive cleaning of the cleaning foundation pit.
Furthermore, in the fourth step, when the polluted soil is cleaned, an illuminating lamp, a spray head or a PID on-line detection instrument is arranged on the slab wall support, the illuminating lamp is convenient for construction at night, dust fall or smell inhibitor spraying is carried out through the spray head, and the operation power of the fan on the air distribution plate is controlled through the detection signal feedback of the PID on-line detection instrument.
Compared with the prior art, the invention has the advantages and positive effects that:
according to the scheme, an open structural design is adopted, peculiar smell air can be collected while cleaning and digging, the design of the air supply plate wall and the air collecting plate wall is combined, the peculiar smell air in a cleaning and digging area is effectively collected, the wheel type sliding block and the U-shaped sliding groove are utilized, manual pushing movement or electric movement along with the cleaning and digging condition of a foundation pit can be realized, and the peculiar smell air generated in the cleaning and digging process of polluted soil is subjected to movement tracking collection, standard reaching emission or comprehensive utilization; in addition, according to the scheme, the illuminating lamp can be arranged on the plate wall support according to actual requirements, so that continuous construction at night is realized; the spray head is arranged on the plate wall support, so that dust fall or odor inhibitor spraying is realized, the problems of prominent cleaning and neighbor-avoiding effect, high secondary pollution risk and the like of the existing pesticide polluted land soil are effectively solved, and the spray head has good application prospect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a control system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a panel wall according to an embodiment of the present invention;
FIG. 3 is a schematic view of a wind collecting plate wall according to an embodiment of the present invention;
FIG. 4 is a schematic view of a slab wall bracket according to an embodiment of the present invention;
FIG. 5 is a flowchart of an application method of the system for controlling the odor of soil cleaning in pesticide-polluted land according to the embodiment of the invention;
wherein: 1. a light energy conversion electric energy unit; 2. a power supply transformer; 3. a power unit; 4. a cable; 5. air supply plate wall; 6. a fan; 7. a fixing strip; 8. a wheel type sliding block; 9. a U-shaped chute; 10. wind collecting plate wall; 11. a wind collecting area; 12. a wind-collecting hose; 13. a negative pressure fan; 14. an air check valve; 15. an air storage tank; 16. a PID detection unit; 17. an electromagnetic valve; 18. an electromagnetic pump; 19. an air liquefying unit; 20. an adsorption and discharge unit; 21. a panel wall support; 22. and (5) cleaning and digging the foundation pit.
Detailed Description
In order that the above objects, features and advantages of the invention will be more readily understood, a further description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments disclosed below.
Embodiment 1, this embodiment proposes a be used for pesticide contaminated land parcel soil to dig peculiar smell management and control system, realizes managing and controlling the peculiar smell air that the in-process produced to pesticide contaminated land parcel soil digs to carry out comprehensive utilization or handle according to relevant standard, including power supply system, air supply system and peculiar smell air treatment system, power supply system provides the electric energy for air supply system and peculiar smell air treatment system, specifically, as shown in fig. 1:
the power supply system utilizes light energy to store electricity and comprises a light energy conversion electric energy unit 1, a power supply transformer 2 and a power unit 3, wherein the light energy conversion electric energy unit 1 mainly stores electricity by a solar photovoltaic panel, and occupies a floor area of about 50m 2 The photoelectric conversion efficiency is 25% -35%, and the generated electric energy can be transmitted to the electric power unit 3 for storage through a cable;
the air supply system is preferably built in the upwind direction outside the boundary of the excavated foundation pit 22, and comprises an air supply plate wall 5, a fan 6 and a fixing strip 7, wherein the fan 6 is arranged on the air supply plate wall 5, the fan 6 is connected to the power unit 3 through a cable 4, and the air supply plate wall 5 is fixed with the horizontal ground through the fixing strip 7 by bolts; the length of the air supply plate wall 5 is 3m, the height is 2.2m, the thickness is 15cm, and fireproof cotton is filled in the air supply plate wall; the fans 6 are light-power energy-saving fans, the diameter of each fan is 0.6m, the electric power is 25W, and the length of each fan is 1m, the width of each fan is 30cm, and the thickness of each fan is 5cm; in addition, in this embodiment, the air supply panel walls 5 may be spliced, and four fans 6 are uniformly installed on each air supply panel wall 5;
the peculiar smell air treatment system comprises an air collecting plate wall 10, a negative pressure Roots blower 13 and an air storage box 15, wherein a horn-shaped air collecting area 11 is arranged on the air collecting plate wall 10, the length of the air collecting plate wall 10 is 3m, the vertical height of the air collecting plate wall is higher than the height of an air supply plate wall, the preferable thickness of the air collecting plate wall is 3m, the thickness of the air collecting plate wall is 15cm, fireproof cotton is filled in the air collecting plate wall, the inclined angle of the top inclined plate is 45 degrees, and the length of the inclined plate is 0.5m; the wind receiving area 11 is circular, and the effective circular diameter is 1.2m; five air inlets which are embedded with the thickness of 8cm are uniformly distributed on the air collecting area 11 and are communicated with the air collecting hose 12, and the pipe diameter of the air collecting hose 12 is 11cm; the inlet end of the negative pressure Roots blower 13 is connected with an air collecting hose 12, an air one-way valve 14 is arranged on the pipeline at the outlet end, and the working pressure of the negative pressure Roots blower 13 is 20kpa and the flow is 600m 3 In operation, the odor-contaminated air in the vicinity of the circular horn wind-receiving area 11 is pumped into the air storage tank 15 for temporary storage.
When the energy-saving fan is particularly operated, the power supply system controls the embedded light power energy-saving fan 6 to rotate through the cable 4 to form air flow so as to blow odor air volatilized from the digging foundation pit to the wind collecting plate 10; after the peculiar smell air treatment system is started, a negative pressure flow field is formed near the air suction port of the air collecting plate, peculiar smell air is pumped into the peculiar smell air treatment system, meanwhile, the air flow field is formed at the upper part of the foundation pit, and the peculiar smell air continuously flows to the air collecting plate from one side of the air supply plate.
In this embodiment, the tail end of the air storage tank 15 is connected with the air liquefying unit 19 and the adsorption and discharge unit 20, corresponding electromagnetic valves and electromagnetic pumps are respectively arranged between the air storage tank 15 and the air liquefying unit 19 and between the adsorption and discharge units 20, and the volume of the air storage tank 15 is 1m 3 The upper part is provided with a PID detection unit 16 for detecting the concentration of the polluted air sent to the air storage tank 15 by the negative pressure Roots blower 13 and feeding back a signal source to the electromagnetic valve and the electromagnetic pump; when the PID detection value is more than 5ppm, only opening the electromagnetic valve 17 and the electromagnetic pump 18 on the pipeline at the front end of the air liquefying unit 19; when the PID detection value is less than 5ppm, the electromagnetic valve 17 and the electromagnetic pump 18 on the front end pipeline of the polluted air liquefying unit 19 are closed, the electromagnetic valve and the electromagnetic pump on the front end pipeline of the adsorption and discharge unit 20 are opened, and the polluted air liquefying unit at the tail end of the system is openedThe element 19 condenses, liquefies and stores the high-concentration peculiar smell air, and then is comprehensively utilized or treated according to relevant standards; the adsorption and discharge unit 20 is filled with activated carbon, a discharge chimney is arranged at the tail end of the adsorption and discharge unit 20 at the tail end of the system, and air is adsorbed and discharged up to the standard.
In the embodiment, the air supply plate wall 5 and the air collection plate wall 10 are designed to be detachable or movable along with the construction condition of the foundation pit to be excavated; specifically, a U-shaped chute 9,U is arranged underground at two sides of the air supply plate wall 5 and the air receiving plate wall 10, the chute 9 is made of iron, the specification is 40cm in width and 30cm in height, and the length is set according to practical conditions. Set up wheeled sliding block 8 in U type spout 9, wheeled sliding block 8's bottom and left and right sides set up the runner, wheeled sliding block 8 is inside to set up driving motor, wheeled sliding block 8 slides along U type spout 9 under driving motor drive, and then realize the removal of air supply trigger wall 5 and receipts wind trigger wall 10, this embodiment respectively sets up three fixed strip 7 in air supply trigger wall 5 and receipts wind trigger wall 10 lower part, on being fixed in wheeled sliding block 8 through the bolt to it is inside to stablize in the iron U type spout 9 of underground, when the trigger wall is unstable, multiplicable fixed strip 7 quantity.
In addition, the top of the air supply panel wall 5 and the air collection panel wall 10 are supported and fixed by a panel wall support frame 21, as shown in fig. 4, which is a schematic structural diagram of the panel wall support frame 21, the panel wall support frame 21 is a net-shaped square steel frame, and two ends of the square steel frame are inserted into the air supply panel wall 5 and the air collection panel wall 10 and fixed by a bolt at the outer side of the panel wall; the illuminating lamp or the spray head can be arranged on the plate wall support 21 according to the requirement, the illuminating lamp can be arranged on the plate wall support 21 according to the night construction requirement, and the spray is arranged on the top of the air supply plate wall 5.
Embodiment 2, based on the control system described in embodiment 1, the application method of the control system for cleaning and deodorizing pesticide contaminated land soil is provided in this embodiment, and the specific implementation steps are as follows:
step one: checking a detailed survey report of land block pollution, and clearly cleaning and digging boundaries and marking.
Step two: and (5) confirming the peculiar smell area by combining a manual and rapid detection instrument.
Step three: planning the cleaning and digging mode of the odor polluted soil.
Step four: and constructing a power supply system, an air supply system and a movable peculiar smell air treatment system.
Step five: and after the air supply system is started, cleaning polluted soil, and gradually starting the peculiar smell air treatment system.
Step six: the next clearing area moves and circulates.
Step seven: activated carbon generated by the adsorption and discharge unit is disposed of as hazardous waste.
When the foundation pit is installed, the air supply plate wall 5 and the air receiving plate wall 10 are opposite, the horizontal distance is 15-20 m, and a plurality of air supply plate walls and air receiving plate walls can be continuously built and detached or moved to be used along with the cleaning condition of the foundation pit. In addition, the two sides of the foundation pit 22 are dug and the iron U-shaped sliding grooves 9 are strictly constructed according to the length of the plate wall supporting frame 21, the air supply plate wall 5 and the air collecting plate wall 10 are preferably pushed by manpower to move on the dredging site, and when the site condition is good, the excavator operator can directly dredge the foundation pit and wirelessly control the wheel type sliding block 8 to move towards the dredging direction. In addition, a PID on-line detection instrument can be installed on the panel wall support according to the requirement, and the operation power of the light power energy-saving fan 6 on the air supply panel wall 5 is controlled through detection signal feedback.
Taking a pesticide field in Wuhan market as an example, the pollutants are hexa-hexa, hexa-chlorobenzene and the like, the field has larger peculiar smell, and the ectopic thermal desorption repair technology is adopted for treatment. The device is applied to polluted cleaning land, and the total application excavation operation base pit surface exceeds 30000m 2 The cleaning field detection has no peculiar smell and good environmental condition. In the application process of the invention, the polluted air is condensed and liquefied by a condensing and liquefying unit to collect high-concentration peculiar smell air of about 200m 3 And (3) introducing the waste gas into a rotary kiln body of direct thermal desorption equipment for incineration, wherein the thermal desorption tail gas is detected to reach the standard in the process.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The system is characterized by comprising a power supply system, an air supply system and an odor air treatment system, wherein the power supply system provides electric energy for the air supply system and the odor air treatment system;
the air supply system is built at the upwind position outside the boundary of the cleaning foundation pit (22) and comprises an air supply plate wall (5) and fixing strips (7), a plurality of fans (6) are installed on the air supply plate wall (5), the fans are connected with the power supply system through cables (4), and the air supply plate wall (5) is fixed with the ground through the fixing strips (7);
the peculiar smell air treatment system comprises an air collecting plate wall (10), a negative pressure Roots blower (13) and an air storage box (15), wherein the air collecting plate wall (10) and the air supply plate wall (5) are oppositely arranged, an air collecting area (11) is arranged on the air collecting plate wall (10), the top of the air collecting plate wall (10) is inclined towards the direction of a cleaning foundation pit (22), the air collecting area (11) is horn-shaped, a plurality of air collecting inlets are uniformly distributed on the air collecting area (11) and communicated with air collecting hoses (12), the inlet end of the negative pressure Roots blower (13) is connected with the air collecting hoses (12), the outlet end of the negative pressure Roots blower is connected with the air storage box (15), and an air one-way valve (14) is arranged on an outlet end pipeline;
the fan (6) of the air supply system rotates to form air flow, and the odor air volatilized by the cleaning foundation pit (22) is blown to the air collecting plate wall (10); after the peculiar smell air treatment system is started, a negative pressure flow field is formed near the air collecting area (11), peculiar smell air is pumped into the peculiar smell air treatment system, meanwhile, the upper part of the foundation pit (22) is cleared to form an air flow field, and peculiar smell air continuously flows to the air collecting plate wall (10) from one side of the air supply plate wall (5), so that the collection of the peculiar smell air is realized.
2. The odor control system for soil excavation of pesticide contaminated land areas as set forth in claim 1, wherein: the utility model discloses a wind-collecting plate wall, including wind-feeding plate wall (5), wind-collecting plate wall (10), U type spout (9) all are provided with in the both sides underground of wind-feeding plate wall (5) and wind-collecting plate wall (10), set up wheeled sliding block (8) in U type spout (9), the bottom and the left and right sides of wheeled sliding block (8) set up the runner, inside driving motor that sets up of wheeled sliding block (8), wheeled sliding block (8) slide along U type spout (9) under driving motor drive to realize the removal of wind-feeding plate wall (5) and wind-collecting plate wall (10).
3. The odor control system for soil excavation of pesticide contaminated land areas as set forth in claim 1, wherein: the tail end of the air storage box (15) is connected with an air liquefying unit (19) and an adsorption and discharge unit (20), and corresponding electromagnetic valves and electromagnetic pumps are arranged between the air storage box (15) and the air liquefying unit (19) and between the air storage box and the adsorption and discharge unit (20);
the air liquefying unit (19) condenses, liquefies and stores peculiar smell air, the PID detecting unit (16) is arranged at the upper part of the air storage box (15), the concentration of the polluted air sent to the air storage box (15) by the negative pressure Roots blower (13) is detected, and a signal source is fed back to the electromagnetic valve and the electromagnetic pump; when the PID detection value is larger than the set value, only opening an electromagnetic valve and an electromagnetic pump on a pipeline at the front end of the polluted air liquefying unit (19); when the PID detection value is smaller than the set value, only opening an electromagnetic valve and an electromagnetic pump on a pipeline at the front end of the adsorption and discharge unit (20);
the adsorption and discharge unit (20) is internally filled with activated carbon, and the tail end of the adsorption and discharge unit is provided with a discharge chimney, and the adsorption and discharge unit (20) adsorbs air and then discharges the air up to the standard.
4. The odor control system for soil excavation of pesticide contaminated land areas as set forth in claim 1, wherein: the power supply system utilizes light energy to store electricity, and comprises a light energy conversion electric energy unit (1), a power supply transformer (2) and a power unit (3), wherein the light energy conversion electric energy unit (1) is a solar photovoltaic panel, and generated electric energy is transmitted to the power unit through a cable to be stored.
5. The odor control system for soil excavation of pesticide contaminated land areas as set forth in claim 1, wherein: the inside of air supply board wall (5) and receipts wind board wall (10) all is filled fireproof cotton, and the height of air supply board wall (5) is greater than 2m, and its thickness is 10cm-20cm, and the height of receipts wind board wall (10) is higher than the height of air supply board wall (5).
6. The odor control system for soil excavation of pesticide contaminated land areas as set forth in claim 1, wherein: the top of air supply board wall (5) and receipts wind board wall (10) is fixed through board wall strut (21) connection, and board wall strut (21) wholly is netted square steelframe, and air supply board wall (5) and receipts wind board wall (10) are inserted at both ends and are fixed through the board wall outside bolt body.
7. The odor control system for soil excavation of pesticide contaminated land areas of claim 6, wherein: and an illuminating lamp or a spray head is arranged on the slab wall support frame (21).
8. The odor control system for soil excavation of pesticide contaminated land areas as set forth in claim 2, wherein: the air supply board walls (5) are connected in a spliced mode, four fans (6) are uniformly installed on each air supply board wall (5), and a plurality of air supply board walls (5) and air collection board walls (10) are continuously built and detached or moved to be used along with the condition of digging a foundation pit.
9. The application method for the system for controlling the odor of soil excavation of pesticide-polluted land parcels based on the method as claimed in claims 1 to 8 is characterized by comprising the following steps:
step one: rechecking a detailed survey report of land block pollution, and clearly cleaning the boundary of a foundation pit by pollution and marking;
step two: the peculiar smell area is confirmed by combining manual and rapid detection instruments, and a cleaning and digging mode of peculiar smell polluted soil is planned;
step three: building a power supply system, an air supply system and an odor air treatment system;
step four: after the air supply system is started, the polluted soil is cleaned, and the peculiar smell air treatment system is gradually started: when the PID detection value is larger than the set value, collecting the peculiar smell air into an air liquefying unit (19); when the PID detection value is smaller than the set value, the peculiar smell is collected into a discharge unit (20) for discharge after being adsorbed by the activated carbon;
step five: and the air supply plate wall and the air collecting plate wall are moved to realize comprehensive cleaning of the cleaning foundation pit.
10. The application method for the pesticide contaminated land parcel soil cleaning and odor control system according to claim 9, wherein: in the fourth step, when the polluted soil is dredged, an illuminating lamp, a spray head or a PID on-line detection instrument is arranged on the panel wall supporting frame (21), the illuminating lamp is convenient for construction at night, dust fall or smell inhibitor spraying is carried out through the spray head, and the operation power of a fan (6) on the air supply panel wall (5) is controlled through the detection signal feedback of the PID on-line detection instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310361401.9A CN116441270A (en) | 2023-04-06 | 2023-04-06 | Odor cleaning and controlling system for pesticide polluted land soil and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310361401.9A CN116441270A (en) | 2023-04-06 | 2023-04-06 | Odor cleaning and controlling system for pesticide polluted land soil and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116441270A true CN116441270A (en) | 2023-07-18 |
Family
ID=87119496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310361401.9A Pending CN116441270A (en) | 2023-04-06 | 2023-04-06 | Odor cleaning and controlling system for pesticide polluted land soil and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116441270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564056A (en) * | 2024-01-15 | 2024-02-20 | 山东龙口三元铝材有限公司 | Peculiar smell treatment equipment for coating room |
-
2023
- 2023-04-06 CN CN202310361401.9A patent/CN116441270A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564056A (en) * | 2024-01-15 | 2024-02-20 | 山东龙口三元铝材有限公司 | Peculiar smell treatment equipment for coating room |
| CN117564056B (en) * | 2024-01-15 | 2024-03-12 | 山东龙口三元铝材有限公司 | Peculiar smell treatment equipment for coating room |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107876539A (en) | The aerobic Ecosystem restoration system of refuse landfill and method | |
| CN116441270A (en) | Odor cleaning and controlling system for pesticide polluted land soil and application method | |
| CN102513343B (en) | Treatment system for repairing organics-contaminated soil | |
| CN107309257B (en) | Heat-enhanced vapor extraction contaminated soil remediation device and method thereof | |
| CN113123383A (en) | Gas-solid separation device of emergency rescue equipment and emergency rescue equipment thereof | |
| CN110772953A (en) | Peculiar smell control system for digging operation in organic pollution site | |
| CN110935720B (en) | Thermal desorption device for integrated soil remediation and application method | |
| CN105239796A (en) | Moving house used for excavating garbage mountain | |
| ITTO20110763A1 (en) | SYSTEM FOR CATCHING AND / OR ABATEMENT OF HARMFUL EMISSIONS IN AN ATMOSPHERE FROM A SYSTEM IN THE EVENT OF AN ACCIDENT, PARTICULARLY A NUCLEAR SYSTEM | |
| CN205946540U (en) | Municipal afforestation tree planting earth boring machine | |
| CN111282978A (en) | Soil organic pollutant purification treatment system | |
| CN114101278B (en) | Intelligent excavation stale refuse treatment method and pretreatment method | |
| CN205987717U (en) | A kind of municipal administration greening soil block cleaning Tree Planting Earthdrill | |
| CN202539177U (en) | Treatment system for repairing organic contaminated soil | |
| CN206578129U (en) | The aerobic gas injection air-extractor and system of a kind of refuse landfill | |
| CN212026569U (en) | Dredging device for municipal underground pipeline | |
| CN208600453U (en) | A kind of municipal administration garden soil prosthetic device | |
| CN115024194A (en) | Irrigation device and method with pipeline storage function and used for mine restoration and treatment | |
| CN210288248U (en) | Ice cube recycle device for highway | |
| CN207659127U (en) | A kind of garbage incinerating power plant automatic dredging device | |
| CN106869073A (en) | A kind of road device for melting snow | |
| JP3086219B1 (en) | Waste stabilization method for restoration of waste landfill | |
| CN212349880U (en) | Emergency polluted soil remediation biological ventilation workshop | |
| CN217451474U (en) | Contaminated site removes restoration treatment system | |
| CN212474824U (en) | Garbage cleaning device for municipal works |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |