CN115569975A - Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method - Google Patents

Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method Download PDF

Info

Publication number
CN115569975A
CN115569975A CN202211145531.0A CN202211145531A CN115569975A CN 115569975 A CN115569975 A CN 115569975A CN 202211145531 A CN202211145531 A CN 202211145531A CN 115569975 A CN115569975 A CN 115569975A
Authority
CN
China
Prior art keywords
state
injection
tube
soil
injection hole
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
Application number
CN202211145531.0A
Other languages
Chinese (zh)
Inventor
王兆阳
王强
何懿恒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Benzheng Environmental Protection Technology Co ltd
Original Assignee
Zhejiang Benzheng Environmental Protection Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Benzheng Environmental Protection Technology Co ltd filed Critical Zhejiang Benzheng Environmental Protection Technology Co ltd
Priority to CN202211145531.0A priority Critical patent/CN115569975A/en
Publication of CN115569975A publication Critical patent/CN115569975A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/08Reclamation of contaminated soil chemically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C2101/00In situ

Abstract

The application discloses injection pipe assembly, soil in-situ remediation device and injection method. Wherein, the injection pipe subassembly includes: the pipe wall of the outer pipe is provided with a first medicine injection hole for conveying medicine liquid; the inner tube, the second injection hole has been seted up to the pipe wall, and with outer tube clearance fit and the outer tube rotation relatively, the injection pipe subassembly has the on-state of first injection hole and second injection hole butt joint intercommunication to and the off-state that the second injection hole was shielded to the outer tube. Soil normal position prosthetic devices includes injection pipe subassembly and is used for rotating the inner tube and then switches the controlling means of injection pipe subassembly operating condition, controlling means includes the control rod that has near-end and distal end, and the distal end is provided with the driving piece rather than rotating the connection, and the driving piece has the skew state that can stretch into the inner tube lumen and can block the operating condition of inner tube inner wall, controlling means still includes the tractive the driving piece switches the operating condition from the skew state to the tractive rope, the tractive rope extends to the near-end of control rod.

Description

Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method
Technical Field
The application relates to the technical field of soil remediation, in particular to a medicine injection pipe assembly, a soil in-situ remediation device and a medicine injection method.
Background
In recent years, with the development of domestic soil remediation technologies, the perfection of laws, regulations and standards, the high cost of ex-situ remediation, high energy consumption, high risk of secondary pollution and other factors, in-situ remediation technologies of soil and underground water become hot spots of current selected remediation strategies, such as in-situ high-pressure jet grouting remediation technologies, in-situ chemical injection well injection technologies, in-situ stirring remediation technologies and the like, and are generally applied to actual remediation engineering.
In the process of injecting and repairing the in-situ injection well, the blockage problem of the injection well can be caused by the silt or silt soil in the field, the damage problem of the injection well can be caused by the severe reaction of an injected medicament and high-concentration pollutants and high temperature, and the dissolution damage problem of the injection well can be caused by the existence of the organic solvent DNAPL.
Chinese patent No. CN108380660A discloses a multilayer in-situ drug injection method for contaminated sites. Insert soil through the circular cone probe, change the transport depth through the connecting pipe group of dismantlement formula installation, avoid the injection hole to block up through preventing stifled protection boots. However, in the process of realizing vertical injection on site in this way, because the vertical layered injection needs to be adjusted for many times, the layered injection construction increases the working cost and increases the working period and energy consumption.
Disclosure of Invention
In view of the above, it is necessary to provide a drug injection tube assembly, a soil in-situ remediation device and a drug injection method.
This application injection tube subassembly includes:
the pipe wall of the outer pipe is provided with a first medicine injection hole for conveying liquid medicine;
the inner tube, the second injection hole has been seted up to the pipe wall, with outer tube clearance fit is in can be relative the outer tube rotates, the injection pipe subassembly has the on-state of first injection hole and second injection hole butt joint intercommunication, and the outer tube shields the off-state of second injection hole.
Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.
Optionally, the drug injection tube assembly has a limiting structure for limiting a relative rotation angle between the inner tube and the outer tube, and the limiting structure includes a limiting member disposed on one of the inner tube and the outer tube and a limiting groove extending along the circumferential direction on the other of the inner tube and the outer tube.
Optionally, the limiting member has a first limit position and a second limit position when rotating relative to the limiting groove,
the medicine injection pipe assembly is in a conducting state under the first limit position;
and under the second limit position, the medicine injection pipe assembly is in a closed state.
Optionally, the injection pipe subassembly is multistage formula structure, and every section all is provided with inner tube and outer tube, is provided with the joint between the adjacent outer tube.
Optionally, the aperture of the second drug injection hole is larger than the aperture of the first drug injection hole.
Optionally, in the on state, the first injection holes and the second injection holes correspond to each other one to one.
The application also provides a soil in-situ remediation device, which comprises the pesticide injection pipe component and a control device used for rotating the inner pipe so as to switch the working state of the pesticide injection pipe component,
the operating device comprises an operating rod with a proximal end and a distal end, the distal end is provided with a driving piece which is rotatably connected with the operating rod, the driving piece has a deflection state which can be extended into the lumen of the inner tube and an operating state which can be rightly clamped on the inner wall of the inner tube, the operating device also comprises a pulling rope which pulls the driving piece to switch from the deflection state to the operating state, and the pulling rope extends to the proximal end of the operating rod.
Optionally, the driving member is divided into a first part and a second part opposite to each other with the operating lever as a boundary, the first part has a weight larger than that of the second part, and the pulling rope is fixed to the first part.
Optionally, the driving member is long, and two ends of the driving member are provided with clamping teeth.
This application injection pipe subassembly and soil normal position prosthetic devices have following technological effect at least:
the application provides an injection pipe subassembly can be used to soil restoration, and inner tube and outer tube pass through clearance fit, switch to the on-state or off-state. The second injection hole is shielded by the outer tube under the closed state, can prevent that silt soil matter from getting into first injection hole, prevents that silt soil matter from blockking up. After the closed state is switched to the conducting state, the liquid medicine can flow out from the second medicine injection hole to the first medicine injection hole, and in-situ medicine injection is achieved.
The soil in-situ remediation device can be used for soil remediation, and the driving piece clamps the inner wall of the inner pipe in a working state and can drive the inner pipe to rotate through the operating rod; the operating rod can drive the driving piece to move in the inner pipe under the deflection state, so that the working height of the driving piece is adjusted. When the driving piece acts on the multi-section structure, the layered injection construction under the single-well condition can be realized by clamping and rotating each section of injection pipe assembly with different depths.
Drawings
FIG. 1 is a schematic view of a positioning structure of a drug injection tube assembly according to an embodiment of the present application;
FIG. 2 is a schematic view of a retaining structure in the administration tube assembly according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a multi-sectional structure of a drug injection tube assembly according to an embodiment of the present application;
FIG. 4 is a schematic view of an embodiment of the present application;
the reference numerals in the figures are illustrated as follows:
100. an outer tube; 110. a first drug injection hole; 120. a limiting groove;
200. an inner tube; 210. a second drug injection hole; 220. a limiting member;
300. a joint; 310. a body; 320. an interface end;
400. a joystick; 401. a proximal end; 402. a distal end;
410. a drive member; 411. a first portion; 412. a second portion; 413. clamping teeth; 420. a handle; 430. a fixed pulley;
500. a pull rope.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In this application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any particular order or number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, the terms "corresponding", "matching", "adapted", such as "B corresponding to a", "a corresponds to B", or "B corresponds to a", indicate that B has a corresponding relationship with the shape, position or function of a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, releasably connected, or integral; may be mechanically coupled, may be electrically coupled, or may be in communication with each other; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1, in one embodiment, the present application provides a drug injection tube assembly, which includes an outer tube 100 and an inner tube 200, wherein a first drug injection hole 110 for delivering a drug solution is formed in a wall of the outer tube 100. The inner tube 200 has a second drug injection hole 210 (the groove shown in fig. 1 is only used to show the position of the second drug injection hole 210) formed in the tube wall, and is in clearance fit with the outer tube 100 and can rotate relative to the outer tube 100, and the drug injection tube assembly has a conduction state in which the first drug injection hole 110 and the second drug injection hole 210 are in butt communication, and a closing state in which the outer tube 100 shields the second drug injection hole 210. In the on state, the first injection holes 110 and the second injection holes 210 correspond to each other one by one.
The injection pipe assembly provided in the embodiment can be used for soil remediation, and can extend into soil and convey a remediation liquid medicine when in use. The inner tube and the outer tube are in clearance fit, and a clearance space is reserved between the outer wall of the inner tube and the inner wall of the outer tube, so that the inner tube can rotate in a small range. In the closed state, the second medicine injection hole 210 is shielded by the outer tube 100, so that the silty soil can be prevented from entering the first medicine injection hole 110, and the silty soil can be prevented from being blocked. After switching from the off state to the on state, the liquid medicine can flow out from the second medicine injection hole 210 to the first medicine injection hole 110, and in-situ medicine injection is realized.
Further, the materials of the inner tubes of the outer tube 100 and the inner tube 200 may be, for example, stainless steel, so as to achieve high temperature resistance, corrosion resistance and oxidation resistance, and prevent the drug injection tube assembly from being corroded and damaged by an organic solvent (DNAPL) and high temperature. The second injection hole 210 has a larger diameter than the first injection hole 110, for example, the first injection hole 110 has a diameter of 2mm, and the first injection hole 110 has a diameter of 0.5mm, so that the second injection hole 210 of the inner tube can fully cover the first injection hole 110 of the outer tube in the conducting state, thereby ensuring smooth injection.
Referring to fig. 2, further, the injection tube assembly has a limiting structure for limiting a relative rotation angle of the inner tube 200 and the outer tube 100, and the limiting structure includes a limiting member provided to one of the inner tube 200 and the outer tube 100 and a limiting groove extending in a circumferential direction of the other. The limiting piece is provided with a first limit position and a second limit position when rotating relative to the limiting groove, and the medicine injection tube assembly is in a conducting state under the first limit position; and under the second limit position, the medicine injection pipe assembly is in a closed state.
For example, the limiting structure includes a limiting member 220 and a limiting groove 120 that are engaged with each other. The limiting member 220 is disposed on the inner tube 200, and the limiting groove 120 is disposed on the outer tube 100. The circumferential angle of the limiting groove 120 may be 5 °. The limiting groove 120 may penetrate through the wall of the outer tube 100, and the limiting member 220 may be engaged with the limiting groove, and the limiting member 220 may be a screw clamp, for example. The limiting structure can limit the relative rotation of the outer pipe 100 and the inner pipe 200, and ensure that the inner pipe 200 rotates within the included angle range of the limiting groove.
Referring to fig. 2, the first limit position and the second limit position may be set according to a specific processing manner. For example, the inner tube 200 is switched from the second limit position to the first limit position after being rotated clockwise. As shown, the limiting member 220 in fig. 2 is at the second limit position of the closed state when it is at the left side of the limiting slot 120; when the limiting member 220 is located at the right side of the limiting groove 120, it is at the first limit position of the conducting state. The inner tube is rotatory for the outer tube, and locating part 220 has arrived the right-hand member of recess by the left end of spacing groove 120, and the coincidence of the second injection hole of inner tube and the first injection hole of outer tube this moment, injection pipe subassembly are in the open mode this moment, can carry out the injection construction.
Further, the injection tube assembly is a multi-section structure, each section is provided with an inner tube 200 and an outer tube 100, and a joint 300 is arranged between the adjacent outer tubes. The fitting 300 may be, for example, stainless steel. Each section of the administration tube assembly is connected by a connector 300 as required by the construction, for example, for depth into the soil. The inner pipe of each section rotates relative to the outer pipe, so that the corresponding section is in a closed or conducted state, and layered injection construction under the condition of a single well can be realized.
Referring to fig. 3, further, the joint 300 includes a body 310 and a joint end 320 fixedly connected to the outer tube 100. The interface end 320 is fixed to the inner wall of the end of the outer tube 100, for example, by screwing into the end of the outer tube 100.
Specifically, the joint 300, the outer tube 100 and the inner tube 200 are all cylindrical structures, the radial widths of the outer surfaces of the body 310 of the joint 300 and the outer tube 100 are the same, and the whole outer surface of the connected multi-section type medicine injection tube assembly is flush. The bore diameter of the interface end 320 is larger than the bore diameter of the inner tube 200. After the multi-section type injection tube assembly is connected, the interface end 320 is pressed against the wall of the inner tube 200. The end of the outer tube 100 is provided with internal threads and the nipple end 320 is provided with external threads. After the joint 300 is fixed with the adjacent outer pipe, the joint end 320 is connected and fixed to the end of the outer pipe 100 and limits the axial movement of the inner pipe 200, so that the effectiveness of the limiting structure is ensured. For example, the interface end 320 of the joint 300 and the inner tube 200 havebase:Sub>A clearance space in the axial directionbase:Sub>A-base:Sub>A', so that the inner tube is ensured not to shake up and down and can rotate horizontally inbase:Sub>A small range.
Referring to fig. 1 to 4, switching between the on and off states of the drug injection tube assembly needs to be implemented based on the structure of the drug injection tube assembly of each embodiment described above. There is also provided in an embodiment of the present application a soil in situ remediation device comprising a syringe assembly as provided in various embodiments of the present application and a steering device for rotating the inner tube 200 to switch the operating state of the syringe assembly, the steering device comprising a steering rod 400 having a proximal end 401 and a distal end 402, the distal end 402 being provided with a drive member 410 rotatably connected thereto (e.g., hinged to the steering rod by a movable bayonet), the drive member 410 having a deflected state in which it can be inserted into the lumen of the inner tube 200 and an operating state in which it can be snapped back against the inner wall of the inner tube 200, the steering device further comprising a pull cord 500 for pulling the drive member 410 from the deflected state to the operating state, the pull cord 500 extending to the proximal end 401 of the steering rod 400.
The distal end 402 refers to the end that is remote from the operator using the joystick 400 on the ground, and the proximal end 401 refers to the other end compared to the distal end 402. In use, the drive member 410 is switched to different states by pulling the cord 500. In a working state, the driving part 410 clamps the inner wall of the inner tube 200, and the operating rod 400 drives the inner tube to rotate; under the inclined state, the operating rod 400 drives the driving member 410 to move in the inner tube, so as to adjust the working height of the driving member. When the driving piece is applied to a multi-section structure, layered injection construction under a single-well condition can be realized by clamping and rotating each section of injection pipe assembly with different depths.
Further, the driving member 410 is an elongated bar, and two ends of the driving member are provided with latches 413, for example, with an arc saw tooth structure. Under the working condition, the latch 413 blocks the wall of the inner pipe, so that the adjustment stability of the operating lever is ensured. The driving member 410 is divided into a first portion 411 and a second portion 412 opposite to each other with the operating lever 400 as a boundary, the first portion 411 has a larger weight than the second portion 412, and the pulling rope 500 is fixed to the first portion 411. After the pulling rope 500 is tightened, the first part 411 is pulled to be clamped on the inner wall of the inner pipe; when the pulling rope 500 is loosened, the first portion 411 is separated from the distal end of the operating lever 400 by gravity, so that the state switching is realized.
Specifically, the steering device further includes a handle 420 secured to the proximal end 401, and a fixed pulley 430 coupled to the pull cord 500, the fixed pulley 430 being secured to the handle 420. The length of the operating rod is set corresponding to the length of the injection tube assembly, for example, the lengths of the operating rod and the injection tube assembly are consistent, and therefore the well pipes with corresponding depths can be accurately switched. The maximum length of the driver 410 is greater than the inner diameter of the inner tube, the density of the first and second portions 411, 412 of the driver 410 is the same, and the thickness of the first portion 411 is greater than the second portion 412. The pulling rope 500 is tightened or loosened by the fixed pulley 430.
When the inner tube with a certain depth needs to be rotated, the operating lever is placed to the target depth, the pulling rope 500 is pulled, the driving piece is clamped on the inner wall of the inner tube, the pulling rope 500 is tightened at the moment, the operating lever is rotated simultaneously, and switching between a conduction state and a closing state of the drug injection tube assembly tube can be achieved. After completion, the pulling rope 500 is released, the first portion 411 of the rotary piece automatically falls down due to gravity, and then the operating lever is taken out.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Features of different embodiments are shown in the same drawing, which is to be understood as also disclosing combinations of the various embodiments concerned.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application.

Claims (10)

1. An infusion tube assembly, comprising:
the pipe wall of the outer pipe is provided with a first medicine injection hole for conveying liquid medicine;
the inner tube, the second injection hole has been seted up to the pipe wall, with outer tube clearance fit is in can be relative the outer tube rotates, the injection pipe subassembly has the on-state of first injection hole and second injection hole butt joint intercommunication, and the outer tube shields the off-state of second injection hole.
2. The administration tube assembly of claim 1, wherein the administration tube assembly has a limit structure that limits the relative rotational angle of the inner and outer tubes, the limit structure comprising a limit stop provided to one of the inner and outer tubes and a circumferentially extending limit slot of the other.
3. The drug-injecting tube assembly of claim 2, wherein said retainer member has a first limit position and a second limit position when rotated relative to said retainer groove,
under the first extreme position, the medicine injection pipe assembly is in a conducting state;
and under the second limit position, the medicine injection pipe assembly is in a closed state.
4. The administration tube assembly of claim 1, wherein the administration tube assembly is a multi-segment structure, each segment having an inner tube and an outer tube with a joint disposed between adjacent outer tubes.
5. The drug delivery tube assembly of claim 1, wherein the fitting extends partially into the outer tube to axially limit the inner tube.
6. The syringe assembly of claim 1, wherein the second orifice has a larger bore diameter than the first orifice;
and under the conducting state, the first medicine injection holes correspond to the second medicine injection holes one to one.
7. The soil in-situ remediation device comprises the injection tube assembly as claimed in any one of claims 1 to 6 and an operating device for rotating the inner tube to switch the working state of the injection tube assembly,
the operating device comprises an operating rod with a proximal end and a distal end, the distal end is provided with a driving piece which is rotatably connected with the operating rod, the driving piece has a deflection state which can be extended into the lumen of the inner tube and an operating state which can be rightly clamped on the inner wall of the inner tube, the operating device also comprises a pulling rope which pulls the driving piece to switch from the deflection state to the operating state, and the pulling rope extends to the proximal end of the operating rod.
8. The soil in situ remediation device of claim 7 wherein said drive member is divided into first and second opposed sections bounded by a lever, said first section having a greater weight than said second section, said traction rope being secured to said first section.
9. The soil in-situ remediation device of claim 7 wherein said drive member is elongate and has teeth at each end.
10. The method for injecting the pesticide by using the soil in-situ remediation device of claim 7, comprising the following steps:
extending the driving member in the inclined state into the inner pipe;
the driving piece is pulled by a traction rope to be switched from an inclined state to a working state;
the inner tube is driven to rotate through the operating rod, so that the medicine injection tube assembly is in a conducting state;
the liquid medicine is injected into the soil through the liquid medicine injection pipe assembly.
CN202211145531.0A 2022-09-20 2022-09-20 Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method Pending CN115569975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211145531.0A CN115569975A (en) 2022-09-20 2022-09-20 Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211145531.0A CN115569975A (en) 2022-09-20 2022-09-20 Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method

Publications (1)

Publication Number Publication Date
CN115569975A true CN115569975A (en) 2023-01-06

Family

ID=84580861

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211145531.0A Pending CN115569975A (en) 2022-09-20 2022-09-20 Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method

Country Status (1)

Country Link
CN (1) CN115569975A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105312315A (en) * 2015-11-27 2016-02-10 上海岩土工程勘察设计研究院有限公司 Injection method applied to in-situ remediation of contaminated sites
CN105964678A (en) * 2016-06-23 2016-09-28 北京建工环境修复股份有限公司 Soil and groundwater in-situ remediation system and method through in-situ infusion and high-pressure jet grouting injection
CN106437594A (en) * 2016-10-14 2017-02-22 中国地质调查局水文地质环境地质调查中心 Fishing device and method of downhole HDPE (High-Density Polyethylene) well pipe of brine well
CN206981418U (en) * 2017-06-21 2018-02-09 环境保护部南京环境科学研究所 A kind of well casing device for various medicaments hybrid injection
CN207386151U (en) * 2017-10-17 2018-05-22 杰瑞环保科技有限公司 Soil targets gas thermal
CN112474761A (en) * 2020-11-16 2021-03-12 中国人民大学 Sectional combined type injection well system
CN212769382U (en) * 2020-07-30 2021-03-23 金川集团股份有限公司 Inner clamp type swirler overflow pipe dismounting tool
CN114965956A (en) * 2022-05-23 2022-08-30 同济大学 Multifunctional casing for fracturing, permeability-increasing and cooperative repairing test of low-permeability polluted soil
CN218475769U (en) * 2022-09-20 2023-02-14 浙江本正环保科技有限公司 Injection pipe assembly and soil in-situ remediation device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105312315A (en) * 2015-11-27 2016-02-10 上海岩土工程勘察设计研究院有限公司 Injection method applied to in-situ remediation of contaminated sites
CN105964678A (en) * 2016-06-23 2016-09-28 北京建工环境修复股份有限公司 Soil and groundwater in-situ remediation system and method through in-situ infusion and high-pressure jet grouting injection
CN106437594A (en) * 2016-10-14 2017-02-22 中国地质调查局水文地质环境地质调查中心 Fishing device and method of downhole HDPE (High-Density Polyethylene) well pipe of brine well
CN206981418U (en) * 2017-06-21 2018-02-09 环境保护部南京环境科学研究所 A kind of well casing device for various medicaments hybrid injection
CN207386151U (en) * 2017-10-17 2018-05-22 杰瑞环保科技有限公司 Soil targets gas thermal
CN212769382U (en) * 2020-07-30 2021-03-23 金川集团股份有限公司 Inner clamp type swirler overflow pipe dismounting tool
CN112474761A (en) * 2020-11-16 2021-03-12 中国人民大学 Sectional combined type injection well system
CN114965956A (en) * 2022-05-23 2022-08-30 同济大学 Multifunctional casing for fracturing, permeability-increasing and cooperative repairing test of low-permeability polluted soil
CN218475769U (en) * 2022-09-20 2023-02-14 浙江本正环保科技有限公司 Injection pipe assembly and soil in-situ remediation device

Similar Documents

Publication Publication Date Title
CN218475769U (en) Injection pipe assembly and soil in-situ remediation device
EP0242728A2 (en) Coring tool for rock drilling
CH628116A5 (en) Submersible pump, especially drum pump
EP1637065B1 (en) Endoscopic instrument
CN115569975A (en) Medicine injection pipe assembly, soil in-situ remediation device and medicine injection method
DE202013012720U1 (en) cleaning device
KR102144520B1 (en) Horizontal cleaner for obtaining the underground water
DE202012006263U1 (en) handle
DE102012012877A1 (en) Handle for controlling deflection of distal end of instrument shaft and/or catheter such as flexible endoscope shaft, has handle casing having bearing portions for control element at outer casing walls of handle casing
JP5823239B2 (en) In-pipe cable removal auxiliary device and in-pipe cable removal system including the device
DE102017125733A1 (en) Unit for sewer pipe inspection and / or rehabilitation in the main and secondary ducts
DE10150462A1 (en) Telescopic vacuum cleaner suction tube has an additional telescopic tube attached alongside in which a helical electrical cable is arranged
JP4463142B2 (en) Ground improvement method and injection pipe used therefor
JP5492394B2 (en) Pre-receiving material installation method and pre-receiving material installation device
JPH07217359A (en) Mud scraper
DE10325560A1 (en) boring machine
JP4462009B2 (en) Two-stage pipe burying method and apparatus
US7219751B2 (en) Apparatus for guiding and steering an earth boring machine and casing assembly
KR101132182B1 (en) The multi pipechemical injection equipment for grouting
CN213195042U (en) Ecological soil prosthetic devices
CN220515024U (en) Safe type normal position oxidant release metering device
AT505190B1 (en) DEVICE FOR DRILLING OR BZW. DRILLING IN GESTEIN MATERIAL
DE102019100948B4 (en) Device for obtaining water and for transmitting energy
JP4228943B2 (en) Ready-made pile construction method and holding leader
DE3249087C2 (en) Device for driving a gallery, tunnel or the like in the pipe pre-pressing operation, in particular for the production of a non-accessible pipeline

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