CN115403130A - Device and process for repairing underground water based on in-situ chemical oxidation method - Google Patents
Device and process for repairing underground water based on in-situ chemical oxidation method Download PDFInfo
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- CN115403130A CN115403130A CN202211137856.4A CN202211137856A CN115403130A CN 115403130 A CN115403130 A CN 115403130A CN 202211137856 A CN202211137856 A CN 202211137856A CN 115403130 A CN115403130 A CN 115403130A
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- chemical oxidation
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- 239000000126 substance Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 42
- 230000003647 oxidation Effects 0.000 title claims abstract description 41
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 31
- 238000002347 injection Methods 0.000 claims abstract description 112
- 239000007924 injection Substances 0.000 claims abstract description 112
- 239000003814 drug Substances 0.000 claims abstract description 40
- 210000001503 joint Anatomy 0.000 claims abstract description 28
- 238000005067 remediation Methods 0.000 claims abstract description 28
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 239000003673 groundwater Substances 0.000 claims abstract description 9
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims description 62
- 238000007599 discharging Methods 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000005516 engineering process Methods 0.000 description 11
- 238000003032 molecular docking Methods 0.000 description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a device and a process for repairing underground water based on an in-situ chemical oxidation method, wherein the device comprises an equipment box, a driving assembly, a drilling assembly, an injection assembly and a PLC (programmable logic controller); the two driving assemblies are respectively arranged on two sides of the upper end of the equipment box and respectively provide power for the drilling assembly and the injection assembly; the drilling assembly comprises a butt joint rod, an unearthed casing and a drill rod, the butt joint rod is connected with one of the driving assemblies, the unearthed casing is arranged in the equipment box, and the drill rod is arranged in the unearthed casing; the injection assembly comprises a medicament box, a mounting pipe and an injection head, the medicament box is arranged in the equipment box, the mounting pipe is linked with the other driving assembly, the injection head is arranged at the lower end of the mounting pipe, and the injection head is provided with an injection pipe; the PLC is electrically connected with each electric device respectively; the device has reasonable structural design and high groundwater remediation efficiency, and is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of underground water remediation equipment, in particular to a device and a process for remediating underground water based on an in-situ chemical oxidation method.
Background
Currently, typical common soil and groundwater remediation technologies mainly include an ex-situ remediation technology and an in-situ remediation technology. Ectopic remediation is mainly based on a P & T technology, which is the earliest technology for soil groundwater remediation, namely, groundwater is pumped out of the original position and is recharged to the position where the groundwater is located after the ectopic remediation. However, the non-aqueous solution retained in the aqueous layer is hardly pumped out of the pump due to capillary tension, and thus is not suitable for the remediation of petroleum and its by-products. The in-situ remediation technology is mainly carried out in soil and underground water, has low remediation cost, good effect, various remediation methods, low disturbance on a remediation area and wide application range, so that the in-situ remediation technology is increasingly applied to actual remediation processes, particularly fields polluted by petroleum and byproducts thereof, in the future remediation process of soil and underground water pollution.
The in-situ remediation technology is mainly an in-situ chemical oxidation technology, and the in-situ chemical oxidation technology effectively destroys pollutants by utilizing the oxidation reaction of the oxidants and the pollutants through delivering chemical oxidants to polluted underground water, so that the harm of the pollutants to the environment is reduced. The in-situ chemical oxidation technology is suitable for various pollutants including chlorohydrocarbon solvents, petroleum hydrocarbons, polycyclic aromatic hydrocarbons and the like, has the advantages of short repair period, moderate cost, capability of treating various pollutants simultaneously, high treatment efficiency, thorough treatment effect and the like, meets the requirement of fast repairing of the polluted site in China, and has wide application prospect in repairing the polluted underground water.
However, in the groundwater pollution remediation process, when chemical oxidation remediation is performed by using an in-situ injection method, the control of the amount of the oxidant by the aqueous phase injection system is very difficult due to the problems of limited injection well quantity and hydraulic conductivity distribution.
Disclosure of Invention
Aiming at the technical problems, the invention provides a device and a process for repairing underground water based on an in-situ chemical oxidation method.
The technical scheme of the invention is as follows: a device for repairing underground water based on an in-situ chemical oxidation method comprises an equipment box, a driving assembly, a drilling assembly, an injection assembly and a PLC (programmable logic controller); a well pipe channel is vertically arranged on the equipment box in a penetrating way; the upper end of the equipment box is provided with a movable frame, and an electric cylinder is arranged on the movable frame;
the two driving assemblies are arranged, each driving assembly comprises two guide cylinders, a pushing motor and a rotating motor, the two guide cylinders are arranged at the upper end of the equipment box respectively and are positioned at two sides of the well pipe channel, one of the guide cylinders is connected with the moving frame in a sliding mode and is fixedly connected with the output end of the electric cylinder, the motor frame is arranged at the upper ends of the two guide cylinders, first lead screws are arranged at two inner sides of the two guide cylinders, and the top ends of the first lead screws penetrate through the guide cylinders at the opposite sides and are provided with pinions; two first lead screws in the same guide cylinder are both connected with an installation platform in a threaded manner; the two pushing motors are respectively arranged on the two motor frames, the output shafts of the two pushing motors penetrate through the motor frames on the corresponding sides, and driving gears meshed and connected with the pinions on the corresponding sides are arranged on the output shafts of the two pushing motors; the two rotating motors are respectively arranged on the two mounting platforms in a one-to-one correspondence manner;
the drilling assembly comprises a butt joint rod, a soil discharging sleeve and a drill rod, the butt joint rod is arranged in a guide cylinder fixedly connected with the equipment box and connected with an output shaft of the rotating motor, and the bottom end of the butt joint rod penetrates through the equipment box; the unearthing sleeve is fixedly arranged inside the equipment box, and two ends of the unearthing sleeve penetrate through the equipment box; the drill rod is movably sleeved inside the unearthing sleeve, the top end of the drill rod is movably clamped with the bottom end of the butt joint rod, the bottom end of the drill rod is provided with a ground breaking drill bit, and the outer wall of the drill rod is uniformly sleeved with a plurality of lifting discs;
the injection assembly comprises a medicament box, an installation pipe and an injection head, the medicament box is arranged in the equipment box, and the equipment box is provided with a medicament injection pipe communicated with the medicament box; the installation tube is arranged in the inward cylinder movably clamped with the movable frame and is fixedly connected with the lower bottom surface of the installation platform, the injection head is fixedly arranged at the lower end of the installation tube, and the injection tube connected with the chemical box is arranged on the injection head; a booster pump is arranged at the joint of the injection tube and the medicament box;
the PLC controller is respectively electrically connected with the electric cylinder, the pushing motor, the rotating motor and the booster pump.
Furthermore, a stirrer electrically connected with the PLC is arranged in the chemical box; the stirrer is arranged in the chemical box, so that the mixing uniformity of the oxidizing chemicals is improved, and the chemical oxidation remediation effect of the polluted underground water is improved.
Furthermore, an unearthing through groove is formed in the upper position, close to the side wall of the unearthing pipe, of the equipment box, and an earth guide hopper communicated with the unearthing through groove is arranged on the equipment box; through setting up and leading the soil fill, be convenient for shift the soil of restoreing on-the-spot excavation, provide reliable site conditions for groundwater restoration work.
Furthermore, a soil collecting box communicated with the soil discharging through groove is sleeved on the soil discharging sleeve, a conveying disc is rotatably clamped in the soil collecting box, a conveying motor for providing power for the conveying disc is arranged on the lower bottom surface of the soil collecting box, and the conveying motor is electrically connected with the PLC; the soil guide hopper is communicated with the soil collecting box; soil inside the unearthed sleeve pipe enters the conveying disc through the unearthed through groove, and then is discharged out of the equipment box through the soil guide hopper under the action of the conveying disc, so that the well building efficiency in the underground water repairing process is improved.
Furthermore, a rotating shaft is rotatably clamped in the installation pipe and is connected with an output shaft of the rotating motor; injection pipes penetrating through the injection heads are slidably clamped on two sides of the injection heads, toothed plates are arranged at one ends, close to the two injection pipes, of the two injection pipes, the bottom ends of the rotating shafts penetrate through the injection heads, and toothed rollers which are respectively in meshed connection with the two toothed plates are arranged; the gear roller is driven to rotate through the rotating shaft, the two injection pipes extend out of the injection head and are finally inserted into the polluted water layer by utilizing the meshing effect of the gear roller and the toothed plate, and the repair reliability of the polluted underground water is improved.
Furthermore, a movable well pipe is clamped in the well pipe channel in a sliding manner, and a propelling component for propelling the movable well pipe into the ground is arranged in the equipment box; the movable well pipe and the propelling component are arranged, so that the effectiveness of injecting the chemical oxidizing agent is improved.
Furthermore, the propelling component comprises a pressure ring, a gear ring and a propelling motor, the pressure ring is movably clamped at the top end of the movable well pipe, the pressure ring is in threaded connection with a plurality of guide screws in the circumferential direction, two ends of each guide screw are rotatably clamped with the inner wall of the equipment box respectively, a connecting gear is sleeved at the bottom end of each guide screw, the gear ring is sleeved outside the movable well pipe and rotatably clamped with the inner bottom of the equipment box, the gear ring is meshed and connected with each connecting gear, the propelling motor is arranged at the inner bottom of the equipment box and is electrically connected with the PLC, and the propelling motor provides power for the gear ring; the pushing motor is utilized to drive the gear ring and the connecting gear to rotate, so that the pressing ring pushes the movable well pipe into the ground from the inside of the well pipe channel under the action of the guide screw rod, and the working efficiency of repairing polluted ground water is improved.
Further, the bottom of the equipment box is provided with a movable wheel; through setting up and moving the wheel, be convenient for remove and shift the device.
Furthermore, a limiting ring is arranged on the injection tube, and a limiting block which is in sliding clamping connection with the limiting ring is arranged in the injection head; through spacing ring and stopper, be favorable to improving the stability and the reliability that the syringe moved on the injection head.
The invention also provides a process for repairing underground water based on the in-situ chemical oxidation method, which comprises the following steps:
s1, respectively connecting an electric cylinder, a pushing motor, a rotating motor and a booster pump with an external power supply, and injecting a chemical oxidation medicament into a medicament box through a medicament injection pipe;
s2, starting a pushing motor and a rotating motor on a guide cylinder fixedly connected with the equipment box, and driving the butt joint rod and the drill rod to rotate by using the rotating motor to drill the soil layer; meanwhile, in the rotary rotation process of the butt joint rod and the drill rod, the butt joint rod and the drill rod continuously move downwards along the equipment box under the action of the pushing motor and the first lead screw until the ground breaking drill bit reaches a polluted water layer, and drilling is finished;
s3, moving the equipment box to enable the well pipe channel to be located above the drilled hole, then starting the electric cylinder, and moving the electric cylinder to the position above the well pipe channel on the moving frame by utilizing the guide cylinder which is connected with the output end of the electric lever in a sliding and clamping mode with the moving frame;
s4, starting a pushing motor on a guide cylinder in sliding clamping connection with the moving frame, pushing the installation pipe and the injection head to move downwards along the well pipe channel by using the pushing motor, and finally entering a drill hole;
and S5, starting a booster pump, and injecting the chemical oxidation medicament in the medicament box into the underground water through an injection pipe on the injection head to finish the chemical oxidation repairing treatment of the underground water.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the device has reasonable structural design, and integrated equipment can complete the whole process of well construction and medicament injection in the underground water remediation process, thereby reducing the equipment investment in the underground water remediation process and also reducing the remediation difficulty of polluted underground water;
secondly, the injection head is pushed into the ground by the aid of the mounting pipe capable of moving up and down on the guide cylinder, so that oxidation remediation of polluted underground water at different depths can be realized, and reliability of the device is improved;
thirdly, in the well building process, the soil in the drill hole is discharged out of the equipment box by utilizing the actions of the unearthed casing pipe and the lifting disc, so that reliable site conditions are provided for underground water restoration work, and the well building efficiency is improved.
Drawings
FIG. 1 is a longitudinal section of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the connection of the guide cylinder and the movable frame of the present invention;
FIG. 4 is an enlarged, fragmentary, schematic view at A of FIG. 1 of the present invention;
FIG. 5 is a schematic view of the connection of the soil collection box of the present invention to the unearthed casing;
FIG. 6 is an enlarged, fragmentary, schematic view at B of FIG. 1 in accordance with the present invention;
FIG. 7 is a schematic view of the connection of the injector head of the present invention to a mounting tube;
FIG. 8 is a schematic view of the connection of the syringe of the present invention to the injector head;
FIG. 9 is a schematic view of the connection of the ring gear of the present invention with the connecting gear;
wherein, 1-equipment box, 10-well pipe channel, 11-moving rack, 12-electric cylinder, 2-driving component, 20-guiding cylinder, 21-pushing motor, 210-driving gear, 22-rotating motor, 23-motor rack, 24-first screw, 240-pinion, 25-mounting table, 3-drilling component, 30-butt rod, 31-earth casing, 310-earth-going through groove, 311-earth-leading bucket, 32-drilling rod, 320-earth-breaking drill bit, 321-lifting disk, 33-earth-collecting box, 34-conveying disk, 35-conveying motor, 4-injection component, 40-medicament box, 400-stirrer, 41-mounting pipe, 410-rotating shaft, 411-gear roller, 42-injection head, 420-injection pipe, 4200-limiting ring, 4201-limiting block, 421-toothed plate, 43-movable well pipe, 44-pushing component, 440-pressure ring, 441-gear ring, 442-pushing motor, 443-guiding screw, 444-connecting gear.
Detailed Description
Example 1
The device for repairing underground water based on the in-situ chemical oxidation method, as shown in figure 1, comprises an equipment box 1, a driving assembly 2, a drilling assembly 3, an injection assembly 4 and a PLC (programmable logic controller); a well pipe channel 10 vertically penetrates through the equipment box 1; the upper end of the equipment box 1 is provided with a movable frame 11, and the movable frame 11 is provided with an electric cylinder 12;
as shown in fig. 1, 2, 3, and 4, two driving assemblies 2 are provided, each driving assembly 2 includes two guide cylinders 20, a pushing motor 21, and a rotating motor 22, the two guide cylinders 20 are respectively disposed at the upper end of the equipment box 1 and located at two sides of the well pipe passage 10, one of the guide cylinders 20 is slidably clamped with the moving frame 11 and fixedly connected to the output end of the electric cylinder 12, the upper ends of the two guide cylinders 20 are both provided with a motor frame 23, two sides of the interior of the two guide cylinders 20 are both provided with a first lead screw 24, and the top end of the first lead screw 24 penetrates through the opposite guide cylinder 20 and is provided with a pinion 240; two first lead screws 24 in the same guide cylinder 20 are both connected with an installation platform 25 in a threaded manner; the two pushing motors 21 are respectively arranged on the two motor frames 23, the output shafts of the two pushing motors 21 respectively penetrate through the motor frames 23 on the corresponding sides, and are provided with driving gears 210 in meshed connection with the pinions 240 on the corresponding sides; the two rotating motors 22 are respectively arranged on the two mounting tables 25 in a one-to-one correspondence manner;
as shown in fig. 1 and 6, the drilling assembly 3 comprises a docking rod 30, a soil discharging casing 31 and a drill rod 32, the docking rod 30 is arranged inside the guide cylinder 20 fixedly connected with the equipment box 1 and connected with an output shaft of the rotating motor 22, and the bottom end of the docking rod 30 penetrates through the equipment box 1; the unearthing sleeve 31 is fixedly arranged inside the equipment box 1, and two ends of the unearthing sleeve 31 penetrate through the equipment box 1; the drill rod 32 is movably sleeved inside the soil discharging casing 31, the top end of the drill rod 32 is movably clamped with the bottom end of the butt joint rod 30, the bottom end of the drill rod 32 is provided with a soil breaking drill bit 320, and the outer wall of the drill rod 32 is uniformly sleeved with 7 lifting discs 321;
as shown in fig. 1 and 4, the injection assembly 4 includes a chemical tank 40, a mounting tube 41 and an injection head 42, the chemical tank 40 is disposed inside the equipment cabinet 1, and the equipment cabinet 1 is provided with a chemical injection tube communicated with the chemical tank 40; the installation tube 41 is arranged in the cylinder 20 movably clamped with the moving frame 11 and fixedly connected with the lower bottom surface of the installation platform 25, the injection head 42 is fixedly arranged at the lower end of the installation tube 41, and the injection tube 420 connected with the medicament box 40 is arranged on the injection head 42; a booster pump is arranged at the joint of the injection pipe 420 and the medicament box 40;
the PLC controller is respectively electrically connected with the electric cylinder 12, the pushing motor 21, the rotating motor 22 and the booster pump, the PLC controller, the electric cylinder 12, the pushing motor 21 and the rotating motor 22 are all commercially available products, and the booster pump is a QBY-50 type pneumatic diaphragm pump.
Example 2
The embodiment describes a repairing process of the device for repairing underground water based on the in-situ chemical oxidation method in embodiment 1, which includes the following steps:
s1, respectively connecting an electric cylinder 12, a pushing motor 21, a rotating motor 22 and a booster pump with an external power supply, and injecting hydrogen peroxide into a medicament box 40 through a medicament injection pipe;
s2, starting a pushing motor 21 and a rotating motor 22 on a guide cylinder 20 fixedly connected with the equipment box 1, and driving a butt joint rod 30 and a drill rod 32 to rotate by using the rotating motor 22 to drill a soil layer; meanwhile, in the rotating process of the butt joint rod 30 and the drill rod 32, the butt joint rod continuously moves downwards along the equipment box 1 under the action of the pushing motor 21 and the first lead screw 24 until the ground breaking drill bit 320 reaches a polluted water layer, and drilling is finished;
s3, moving the equipment box 1 to enable the well pipe channel 10 to be located above a drilled hole, then starting the electric cylinder 12, and moving the guide cylinder 20, which is in sliding clamping connection with the moving frame 11 through the output end of the electric rod 12, to the position above the well pipe channel 10 on the moving frame 11;
s4, starting a pushing motor 21 on the guide cylinder 20 in sliding clamping connection with the moving frame 11, pushing the mounting pipe 41 and the injection head 42 to move downwards along the well pipe channel 10 by using the pushing motor 21, and finally entering a drill hole;
and S5, starting a booster pump, injecting the chemical oxidation medicament in the medicament box 40 into the underground water through an injection pipe 420 on the injection head 42, wherein the injection amount is 20L/min, and the maximum flow of the booster pump is 200L/min, so that the chemical oxidation repairing treatment of the underground water is completed.
Example 3
The device for repairing underground water based on the in-situ chemical oxidation method, as shown in figure 1, comprises an equipment box 1, a driving assembly 2, a drilling assembly 3, an injection assembly 4 and a PLC (programmable logic controller); a well pipe channel 10 vertically penetrates through the equipment box 1; the upper end of the equipment box 1 is provided with a movable frame 11, and the movable frame 11 is provided with an electric cylinder 12;
as shown in fig. 1, 2, 3, and 4, two driving assemblies 2 are provided, each driving assembly 2 includes two guide cylinders 20, a pushing motor 21, and a rotating motor 22, the two guide cylinders 20 are respectively disposed at the upper end of the equipment box 1 and located at two sides of the well pipe passage 10, one of the guide cylinders 20 is slidably clamped with the moving frame 11 and fixedly connected to the output end of the electric cylinder 12, the upper ends of the two guide cylinders 20 are both provided with a motor frame 23, two sides of the interior of the two guide cylinders 20 are both provided with a first lead screw 24, and the top end of the first lead screw 24 penetrates through the opposite guide cylinder 20 and is provided with a pinion 240; two first lead screws 24 in the same guide cylinder 20 are both connected with an installation platform 25 in a threaded manner; the two pushing motors 21 are respectively arranged on the two motor frames 23, the output shafts of the two pushing motors 21 penetrate through the motor frames 23 on the corresponding sides, and a driving gear 210 meshed with the pinion 240 on the corresponding side is arranged; the two rotating motors 22 are respectively arranged on the two mounting tables 25 in a one-to-one correspondence manner;
as shown in fig. 1, 4, 5 and 6, the drilling assembly 3 comprises a docking rod 30, a soil discharging casing 31 and a drill rod 32, the docking rod 30 is arranged inside the guide cylinder 20 fixedly connected with the equipment box 1 and connected with an output shaft of the rotating motor 22, and the bottom end of the docking rod 30 penetrates through the equipment box 1; the unearthing sleeve 31 is fixedly arranged inside the equipment box 1, and two ends of the unearthing sleeve 31 penetrate through the equipment box 1; the drill rod 32 is movably sleeved inside the unearthed casing 31, the top end of the drill rod 32 is movably clamped with the bottom end of the butt joint rod 30, the bottom end of the drill rod 32 is provided with a ground breaking drill bit 320, and the outer wall of the drill rod 32 is uniformly sleeved with 7 lifting discs 321; an unearthing through groove 310 is formed in the upper position of the side wall of the unearthing pipe 31, and an earth guide hopper 311 communicated with the unearthing through groove 310 is arranged on the equipment box 1; the soil discharging sleeve 31 is sleeved with a soil collecting box 33 communicated with the soil discharging through groove 310, a conveying disc 34 is rotatably clamped in the soil collecting box 33, a conveying motor 35 for providing power for the conveying disc 34 is arranged on the lower bottom surface of the soil collecting box 33, and the soil guiding hopper 311 is communicated with the soil collecting box 33;
as shown in fig. 1, 6, 7, 8 and 9, the injection assembly 4 includes a chemical tank 40, a mounting tube 41 and an injection head 42, the chemical tank 40 is disposed inside the equipment box 1, and the equipment box 1 is provided with a chemical injection tube communicated with the chemical tank 40; the mounting tube 41 is arranged in the cylinder 20 movably clamped with the moving frame 11 and fixedly connected with the lower bottom surface of the mounting table 25, the injection head 42 is fixedly arranged at the lower end of the mounting tube 41, and the injection tube 420 connected with the medicament box 40 is arranged on the injection head 42; a booster pump is arranged at the joint of the injection tube 420 and the medicament box 40; a rotating shaft 410 is rotatably clamped in the mounting tube 41, and the rotating shaft 410 is connected with an output shaft of the rotating motor 22; injection pipes 420 penetrating through the injection head 42 are slidably clamped at two sides of the injection head 42, toothed plates 421 are arranged at one ends, close to the two injection pipes 420, of the two injection pipes 420, the bottom end of the rotating shaft 410 penetrates through the injection head 42, and toothed rollers 411 respectively connected with the two toothed plates 421 in a meshed mode are arranged; a movable well pipe 43 is connected in a sliding and clamping manner in the well pipe channel 10, and a propelling assembly 44 for propelling the movable well pipe 43 into the ground is arranged in the equipment box 1; the propelling component 44 comprises a press ring 440, a gear ring 441 and a propelling motor 442, the press ring 440 is movably clamped at the top end of the movable well pipe 43, the press ring 440 is circumferentially and threadedly connected with 4 guide screws 443, two ends of each guide screw 443 are respectively rotationally clamped with the inner wall of the equipment box 1, the bottom end of each guide screw 443 is sleeved with a connecting gear 444, the gear ring 441 is sleeved outside the movable well pipe 43 and rotationally clamped with the inner bottom of the equipment box 1, the gear ring 441 is meshed and connected with each connecting gear 444, the propelling motor 442 is arranged at the inner bottom of the equipment box 1, and the propelling motor 442 provides power for the gear ring 441;
the PLC controller is respectively and electrically connected with the electric cylinder 12, the pushing motor 21, the rotating motor 22, the conveying motor 35, the pushing motor 442 and the booster pump, the PLC controller, the electric cylinder 12, the pushing motor 21, the rotating motor 22, the conveying motor 35 and the pushing motor 442 are all commercially available products, and the booster pump is a QBY-50 type pneumatic diaphragm pump.
Example 4
The embodiment describes a repairing process of the device for repairing underground water based on the in-situ chemical oxidation method in embodiment 3, which includes the following steps:
s1, respectively connecting an electric cylinder 12, a pushing motor 21, a rotating motor 22 and a booster pump with an external power supply, and injecting hydrogen peroxide into a medicament box 40 through a medicament injection pipe;
s2, starting a pushing motor 21 and a rotating motor 22 on a guide cylinder 20 fixedly connected with the equipment box 1, and driving a butt joint rod 30 and a drill rod 32 to rotate by using the rotating motor 22 to drill a soil layer; meanwhile, in the rotating process of the butt joint rod 30 and the drill rod 32, the butt joint rod and the drill rod continuously move downwards along the equipment box 1 under the action of the pushing motor 21 and the first lead screw 24 until the soil breaking drill bit 320 reaches a polluted water layer, in the drilling process, soil enters the conveying disc 34 through the soil discharging through groove 310, then is discharged out of the equipment box 1 through the soil guide hopper 311 under the action of the conveying disc 34, and the drilling is finished;
s3, moving the equipment box 1 to enable the well pipe channel 10 to be located above a drilled hole, then starting the electric cylinder 12, and moving the guide cylinder 20, which is in sliding clamping connection with the moving frame 11 through the output end of the electric rod 12, to the position above the well pipe channel 10 on the moving frame 11; then, the pushing motor 442 is used to drive the gear ring 441 and the connecting gear 444 to rotate, so that the pressing ring 440 pushes the movable well pipe 43 into the borehole from the inside of the well pipe passage 10 under the action of the guide screw 443;
s4, starting a pushing motor 21 and a rotating motor 22 on a guide cylinder 20 in sliding clamping connection with the moving frame 11, pushing the mounting pipe 41 and the injection head 42 to move downwards along the well pipe channel 10 by using the pushing motor 21, and finally entering a drill hole; the rotating shaft 410 is driven to rotate by the rotating motor 22, the toothed roller 411 is driven to rotate by the rotating shaft 410, and the two injection pipes 420 extend out of the injection head 42 and penetrate through the movable well pipe 43 by the meshing action of the toothed roller 411 and the toothed plate 421, and are finally inserted into the polluted water layer;
and S5, starting a booster pump, injecting the chemical oxidation medicament in the medicament box 40 into the underground water through an injection pipe 420 on the injection head 42, wherein the injection amount is 20L/min, and the maximum flow of the booster pump is 200L/min, so that the chemical oxidation repairing treatment of the underground water is completed.
Example 5
The device for repairing underground water based on the in-situ chemical oxidation method, as shown in figure 1, comprises an equipment box 1, a driving assembly 2, a drilling assembly 3, an injection assembly 4 and a PLC (programmable logic controller); a well pipe channel 10 vertically penetrates through the equipment box 1; the upper end of the equipment box 1 is provided with a movable frame 11, and the movable frame 11 is provided with an electric cylinder 12; the bottom of the equipment box 1 is provided with a movable wheel;
as shown in fig. 1, 2, 3, and 4, two driving assemblies 2 are provided, each driving assembly 2 includes two guiding cylinders 20, a pushing motor 21, and a rotating motor 22, the two guiding cylinders 20 are respectively disposed at the upper end of the equipment box 1 and located at two sides of the well pipe passage 10, one of the guiding cylinders 20 is slidably clamped with the moving frame 11 and is fixedly connected to the output end of the electric cylinder 12, the upper ends of the two guiding cylinders 20 are both provided with motor frames 23, two inner sides of the two guiding cylinders 20 are both provided with first lead screws 24, the top ends of the first lead screws 24 penetrate through the guiding cylinders 20 at the opposite sides and are provided with pinions 240; two first lead screws 24 in the same guide cylinder 20 are both connected with an installation platform 25 in a threaded manner; the two pushing motors 21 are respectively arranged on the two motor frames 23, the output shafts of the two pushing motors 21 penetrate through the motor frames 23 on the corresponding sides, and a driving gear 210 meshed with the pinion 240 on the corresponding side is arranged; the two rotating motors 22 are respectively arranged on the two mounting tables 25 in a one-to-one correspondence manner;
as shown in fig. 1, 4, 5 and 6, the drilling assembly 3 comprises a docking rod 30, a soil discharging casing 31 and a drill rod 32, the docking rod 30 is arranged inside the guide cylinder 20 fixedly connected with the equipment box 1 and connected with an output shaft of the rotating motor 22, and the bottom end of the docking rod 30 penetrates through the equipment box 1; the unearthing sleeve 31 is fixedly arranged inside the equipment box 1, and two ends of the unearthing sleeve 31 penetrate through the equipment box 1; the drill rod 32 is movably sleeved inside the soil discharging casing 31, the top end of the drill rod 32 is movably clamped with the bottom end of the butt joint rod 30, the bottom end of the drill rod 32 is provided with a soil breaking drill bit 320, and the outer wall of the drill rod 32 is uniformly sleeved with 7 lifting discs 321; an unearthing through groove 310 is formed in the upper position of the side wall of the unearthing pipe 31, and an earth guide hopper 311 communicated with the unearthing through groove 310 is arranged on the equipment box 1; the soil discharging sleeve 31 is sleeved with a soil collecting box 33 communicated with the soil discharging through groove 310, a conveying disc 34 is rotatably clamped in the soil collecting box 33, a conveying motor 35 for providing power for the conveying disc 34 is arranged on the lower bottom surface of the soil collecting box 33, and the soil guiding hopper 311 is communicated with the soil collecting box 33;
as shown in fig. 1, 6, 7, 8 and 9, the injection assembly 4 includes a chemical tank 40, a mounting tube 41 and an injection head 42, the chemical tank 40 is disposed inside the equipment tank 1, and the equipment tank 1 is provided with a chemical injection tube communicated with the chemical tank 40; the stirrer 400 is arranged in the chemical box 40, the mounting tube 41 is arranged in the cylinder 20 movably clamped with the moving frame 11 and fixedly connected with the lower bottom surface of the mounting table 25, the injection head 42 is fixedly arranged at the lower end of the mounting tube 41, and the injection tube 420 connected with the chemical box 40 is arranged on the injection head 42; a booster pump is arranged at the joint of the injection pipe 420 and the medicament box 40; a rotating shaft 410 is rotatably clamped in the mounting tube 41, and the rotating shaft 410 is connected with an output shaft of the rotating motor 22; injection pipes 420 penetrating through the injection head 42 are slidably clamped at two sides of the injection head 42, toothed plates 421 are arranged at the ends, close to the two injection pipes 420, of the two injection pipes, the bottom end of the rotating shaft 410 penetrates through the injection head 42, and toothed rollers 411 respectively connected with the two toothed plates 421 in a meshed manner are arranged; a movable well pipe 43 is slidably clamped in the well pipe channel 10, and a propelling assembly 44 for propelling the movable well pipe 43 into the ground is arranged in the equipment box 1; the pushing assembly 44 comprises a pressing ring 440, a gear ring 441 and a pushing motor 442, wherein the pressing ring 440 is movably clamped at the top end of the movable well pipe 43, the pressing ring 440 is circumferentially and threadedly connected with 4 guide screws 443, two ends of each guide screw 443 are respectively rotatably clamped with the inner wall of the equipment box 1, the bottom end of each guide screw 443 is sleeved with a connecting gear 444, the gear ring 441 is sleeved outside the movable well pipe 43 and rotatably clamped with the inner bottom of the equipment box 1, the gear ring 441 is meshed and connected with each connecting gear 444, the pushing motor 442 is arranged at the inner bottom of the equipment box 1, and the pushing motor 442 provides power for the gear ring 441; a limit ring 4200 is arranged on the injection tube 420, and a limit block 4201 which is in sliding clamping connection with the limit ring 4200 is arranged inside the injection head 42;
the PLC controller is respectively electrically connected with the electric cylinder 12, the pushing motor 21, the rotating motor 22, the conveying motor 35, the stirrer 400, the pushing motor 442 and the booster pump, the PLC controller, the electric cylinder 12, the pushing motor 21, the rotating motor 22, the conveying motor 35, the stirrer 400 and the pushing motor 442 are all commercially available products, and the booster pump is a QBY-50 type pneumatic diaphragm pump.
Example 6
The embodiment describes a repairing process of the device for repairing underground water based on the in-situ chemical oxidation method in the embodiment 5, which includes the following steps:
s1, respectively connecting an electric cylinder 12, a pushing motor 21, a rotating motor 22 and a booster pump with an external power supply, injecting hydrogen peroxide into a medicament box 40 through a medicament injection pipe, and starting a stirrer 400;
s2, starting a pushing motor 21 and a rotating motor 22 on a guide cylinder 20 fixedly connected with the equipment box 1, and driving a butt joint rod 30 and a drill rod 32 to rotate by using the rotating motor 22 to drill a soil layer; meanwhile, in the rotating process of the butt joint rod 30 and the drill rod 32, the butt joint rod and the drill rod continuously move downwards along the equipment box 1 under the action of the pushing motor 21 and the first lead screw 24 until the soil breaking drill bit 320 reaches a polluted water layer, in the drilling process, soil enters the conveying disc 34 through the soil discharging through groove 310, then is discharged out of the equipment box 1 through the soil guide hopper 311 under the action of the conveying disc 34, and the drilling is finished;
s3, moving the equipment box 1 to enable the well pipe channel 10 to be located above a drilled hole, then starting the electric cylinder 12, and moving the guide cylinder 20, which is in sliding clamping connection with the moving frame 11 through the output end of the electric rod 12, to the position above the well pipe channel 10 on the moving frame 11; then, the pushing motor 442 is used to drive the gear ring 441 and the connecting gear 444 to rotate, so that the pressing ring 440 pushes the movable well pipe 43 into the borehole from the inside of the well pipe passage 10 under the action of the guide screw 443;
s4, starting a pushing motor 21 and a rotating motor 22 on a guide cylinder 20 in sliding clamping connection with the moving frame 11, pushing the mounting pipe 41 and the injection head 42 to move downwards along the well pipe channel 10 by using the pushing motor 21, and finally entering a drill hole; the rotating shaft 410 is driven to rotate by the rotating motor 22, the toothed roller 411 is driven to rotate by the rotating shaft 410, and the two injection pipes 420 extend out of the injection head 42 and penetrate through the movable well pipe 43 by the meshing action of the toothed roller 411 and the toothed plate 421, and are finally inserted into the polluted water layer;
and S5, starting a booster pump, injecting the chemical oxidation medicament in the medicament box 40 into the underground water through an injection pipe 420 on the injection head 42, wherein the injection amount is 20L/min, and the maximum flow of the booster pump is 200L/min, so that the chemical oxidation repairing treatment of the underground water is completed.
Claims (10)
1. The device for repairing underground water based on the in-situ chemical oxidation method is characterized by comprising an equipment box (1), a driving assembly (2), a drilling assembly (3), an injection assembly (4) and a PLC (programmable logic controller); a well pipe channel (10) vertically penetrates through the equipment box (1); a moving frame (11) is arranged at the upper end of the equipment box (1), and an electric cylinder (12) is arranged on the moving frame (11);
the two driving assemblies (2) are arranged, each driving assembly (2) comprises two guide cylinders (20), a pushing motor (21) and a rotating motor (22), the two guide cylinders (20) are respectively arranged at the upper end of the equipment box (1) and located on two sides of the well pipe channel (10), one guide cylinder (20) is connected with the moving frame (11) in a sliding and clamping mode and fixedly connected with the output end of the electric cylinder (12), the upper ends of the two guide cylinders (20) are respectively provided with a motor frame (23), two inner sides of the two guide cylinders (20) are respectively provided with a first lead screw (24), and the top end of each first lead screw (24) penetrates through the guide cylinder (20) on the opposite side and is provided with a pinion (240); two first lead screws (24) in the same guide cylinder (20) are respectively in threaded connection with an installation platform (25); the two pushing motors (21) are respectively arranged on the two motor frames (23), the output shafts of the two pushing motors (21) penetrate through the motor frames (23) on the corresponding sides, and the two pushing motors are provided with driving gears (210) in meshed connection with the pinions (240) on the corresponding sides; the two rotating motors (22) are respectively arranged on the two mounting platforms (25) in a one-to-one correspondence manner;
the drilling assembly (3) comprises a butt joint rod (30), a soil discharging sleeve (31) and a drill rod (32), the butt joint rod (30) is arranged inside a guide cylinder (20) fixedly connected with the equipment box (1) and is connected with an output shaft of a rotating motor (22), and the bottom end of the butt joint rod (30) penetrates through the equipment box (1); the unearthing sleeve (31) is fixedly arranged inside the equipment box (1), and two ends of the unearthing sleeve (31) penetrate through the equipment box (1); the drill rod (32) is movably sleeved inside the unearthed casing (31), the top end of the drill rod (32) is movably clamped with the bottom end of the butt joint rod (30), the bottom end of the drill rod (32) is provided with a ground breaking drill bit (320), and the outer wall of the drill rod (32) is uniformly sleeved with a plurality of lifting discs (321);
the injection assembly (4) comprises a medicament box (40), a mounting pipe (41) and an injection head (42), wherein the medicament box (40) is arranged inside the equipment box (1), and a medicament injection pipe communicated with the medicament box (40) is arranged on the equipment box (1); the installation tube (41) is arranged in the inward cylinder (20) movably clamped with the moving frame (11) and fixedly connected with the lower bottom surface of the installation platform (25), the injection head (42) is fixedly arranged at the lower end of the installation tube (41), and the injection head (42) is provided with an injection tube (420) connected with the medicament box (40); a booster pump is arranged at the joint of the injection pipe (420) and the medicament box (40);
the PLC is respectively electrically connected with the electric cylinder (12), the pushing motor (21), the rotating motor (22) and the booster pump.
2. An in-situ chemical oxidation method based groundwater remediation device as claimed in claim 1, wherein the chemical tank (40) is internally provided with a stirrer (400) electrically connected with the PLC.
3. A device for remediating underground water based on an in-situ chemical oxidation method as defined in claim 1, wherein a soil discharging through groove (310) is formed in the upper position of the side wall of the soil discharging pipe (31), and a soil guiding hopper (311) communicated with the soil discharging through groove (310) is arranged on the equipment box (1).
4. The device for remediating underground water based on the in-situ chemical oxidation method as defined in claim 3, wherein the unearthed casing (31) is sleeved with a soil collection box (33) communicated with the unearthed through groove (310), a conveying disc (34) is rotatably clamped in the soil collection box (33), a conveying motor (35) for providing power for the conveying disc (34) is arranged on the lower bottom surface of the soil collection box (33), the conveying motor (35) is electrically connected with a PLC (programmable logic controller), and the soil guide hopper (311) is communicated with the soil collection box (33).
5. A device for remediating underground water based on an in-situ chemical oxidation method as claimed in claim 1, wherein a rotating shaft (410) is rotatably clamped inside the installation pipe (41), and the rotating shaft (410) is connected with an output shaft of a rotating motor (22); injection head (42) both sides slip joint have injection tube (420) that run through injection head (42), and the one end that two injection tube (420) are close to mutually all is provided with pinion rack (421), injection head (42) is run through to rotation axis (410) bottom, and is provided with respectively with two pinion rack (421) meshing connection's tooth roller (411).
6. A device for groundwater remediation based on an in situ chemical oxidation process as claimed in claim 1, wherein a mobile well pipe (43) is slidably engaged inside the well pipe passage (10), and a propelling assembly (44) for propelling the mobile well pipe (43) into the ground is arranged inside the equipment box (1).
7. The device for remediating underground water based on the in-situ chemical oxidation method as claimed in claim 6, wherein the pushing assembly (44) comprises a pressing ring (440), a gear ring (441) and a pushing motor (442), the pressing ring (440) is movably clamped at the top end of the movable well pipe (43), the pressing ring (440) is circumferentially and threadedly connected with a plurality of guide screws (443), two ends of each guide screw (443) are rotatably clamped with the inner wall of the equipment box (1), the bottom end of each guide screw (443) is sleeved with a connecting gear (444), the gear ring (441) is sleeved outside the movable well pipe (43) and rotatably clamped with the inner bottom of the equipment box (1), the gear ring (441) is meshed with each connecting gear (444), the pushing motor (442) is arranged at the inner bottom of the equipment box (1) and electrically connected with the PLC, and the pushing motor (442) provides power for the gear ring (441).
8. An in-situ chemical oxidation method-based underground water remediation device according to claim 1, wherein the bottom of the equipment box (1) is provided with moving wheels.
9. The process for remediating underground water based on the in-situ chemical oxidation method as claimed in any one of claims 1 to 8, comprising the steps of:
s1, respectively connecting an electric cylinder (12), a pushing motor (21), a rotating motor (22) and a booster pump with an external power supply, and injecting a chemical oxidation medicament into a medicament box (40) through a medicament injection pipe;
s2, starting a pushing motor (21) and a rotating motor (22) on a guide cylinder (20) fixedly connected with the equipment box (1), and driving a butt joint rod (30) and a drill rod (32) to rotate by using the rotating motor (22) to drill a soil layer; meanwhile, in the rotating and rotating process of the butt joint rod (30) and the drill rod (32), the butt joint rod continuously moves downwards along the equipment box (1) under the action of the pushing motor (21) and the first lead screw (24) until the ground breaking drill bit (320) reaches a polluted water layer, and drilling is finished;
s3, moving the equipment box (1), enabling the well pipe channel (10) to be located above the drilled hole, then starting the electric cylinder (12), and moving the guide cylinder (20) which is connected with the moving frame (11) in a sliding and clamping mode through the output end of the electric lever (12) to the position above the well pipe channel (10) on the moving frame (11);
s4, starting a pushing motor (21) on a guide cylinder (20) which is in sliding clamping connection with the moving frame (11), pushing the mounting pipe (41) and the injection head (42) to move downwards along the well pipe channel (10) by using the pushing motor (21), and finally entering a drill hole;
and S5, starting a booster pump, and injecting the chemical oxidation agent in the agent box (40) into the underground water through an injection pipe (420) on an injection head (42) to finish the chemical oxidation remediation treatment of the underground water.
10. A process for remediating underground water based on an in-situ chemical oxidation method as claimed in claim 9, wherein the bottom of the equipment box (1) is provided with road wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137856.4A CN115403130B (en) | 2022-09-19 | 2022-09-19 | Device and process for repairing underground water based on in-situ chemical oxidation method |
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| CN202211137856.4A CN115403130B (en) | 2022-09-19 | 2022-09-19 | Device and process for repairing underground water based on in-situ chemical oxidation method |
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| CN115403130B CN115403130B (en) | 2023-04-21 |
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