Chemical injection device for underground soil remediation

Abstract

The utility model relates to the technical field of chemical injection devices for soil remediation, and discloses a chemical injection device for underground soil remediation, which comprises a chemical injection well arranged on the ground and used for soil remediation, and a chemical injection component is arranged above the chemical injection well; the sliding column is driven by the lead screw to move on the supporting seat, so that the rotating wheels abut against the outer side of the medicine injection pipe, the medicine injection pipe can be limited through the two rotating wheels due to the arrangement of the anti-skid lines, the clamping blocks are separated from the outer side of the medicine injection pipe due to the retraction of the electric push rod, the medicine injection pipe moving downwards can be positioned, and the medicine injection pipe can be fixed. The medicine injection pipe is prevented from deviating in the moving process; the chemical injection pipe is pushed towards the interior of the chemical injection well, so that the chemical injection pipe moves between the two rotating wheels, and the position of a spray head on the chemical injection pipe in the chemical injection well is controlled by observing the position of a scale line, so that accurate chemical injection is achieved, layered remediation of contaminated soil is completed, cost is saved, and chemical waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation injection devices, in particular to an injection device for underground soil remediation. Background Art

[0002] The in-situ injection method has become a hot topic in in-situ remediation technology due to its relatively low cost, little disturbance to the underground environment, and less exposure to pollutants. It is one of the most promising technologies for soil and groundwater pollution control.

[0003] In traditional drug injection wells, when contaminated soil and uncontaminated soil are mixed, the drug injection equipment often injects contaminated soil and uncontaminated soil together for remediation, and cannot achieve accurate layered remediation of the contaminated soil according to its depth, resulting in increased remediation costs. Therefore, an injection device for underground soil remediation is proposed. Utility Model Content

[0004] The utility model aims to provide an injection device for underground soil remediation, so as to solve the problem that the traditional injection wells mentioned in the above background technology mix the contaminated soil and the uncontaminated soil at intervals, and the injection equipment often injects the contaminated soil and the uncontaminated soil together for remediation, and cannot realize the accurate layered remediation of the contaminated soil according to its depth, resulting in the problem of increased remediation cost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drug injection device for underground soil remediation, comprising a drug injection well opened on the ground for soil remediation, and a drug injection assembly is arranged above the drug injection well;

[0006] The injection assembly includes a support seat, two sliding columns and two rotating wheels. The support seat is installed above the injection well. The two sliding columns are slidably connected to the top of the support seat. The two rotating wheels are rotatably connected to one end of the sliding column. A fixing frame is fixedly connected to the outer side of the support seat. A screw rod is threadedly connected to one side of the fixing frame. One end of the screw rod is movably connected to the other end of the sliding column. An injection tube is arranged between the two rotating wheels, and scale lines are arranged on the outer side of the injection tube.

[0007] As a further preferred embodiment of the technical solution: a mounting groove is provided on one side opposite to the two support seats, an electric push rod is installed inside the mounting groove, and a clamping block is fixedly connected to the push rod end of the electric push rod.

[0008] As a further preferred embodiment of the present technical solution: a syringe pump is installed on one side of the support seat, and a medicine adding barrel is installed on one end of the syringe pump.

[0009] As a further preferred embodiment of the present technical solution: the medicine adding barrel is connected to the medicine inlet end of the injection pump via a pipeline, and a connecting pipe is provided at the top end of the medicine injection tube.

[0010] As a further preferred embodiment of the technical solution: the two clamping blocks respectively abut against the outer sides of the injection tube, and the clamping blocks are arc-shaped blocks.

[0011] As a further preferred embodiment of the present technical solution: a nozzle is provided at the bottom end of the injection tube.

[0012] As a further preferred embodiment of the present technical solution: the outer side of the drug injection tube is provided with anti-slip grooves, and the end of the connecting tube away from the drug injection tube is connected to the drug outlet end of the injection pump.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model drives the sliding column to move on the support seat through the screw rod, so that the rotating wheel contacts the outside of the injection tube, and the anti-slip grooves are set, so that the two rotating wheels can limit the injection tube, and the push rod of the electric push rod is retracted, so that the clamping block is separated from the outside of the injection tube, which can play a positioning role for the injection tube moving downward and avoid the displacement of the injection tube during the movement; the injection tube is pushed into the injection well, so that the injection tube moves between the two rotating wheels, and the position of the nozzle on the injection tube inside the injection well is controlled by observing the position of the scale line, so as to achieve precise injection, complete the layered remediation of contaminated soil, save costs, and avoid waste of drugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the sliding column structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the bottom structure of the support base of the utility model;

[0018] Figure 4 This is a schematic diagram of the wheel structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the top structure of the support seat of the utility model.

[0020] Explanation of the reference numerals in the accompanying drawings: 1. injection well; 2. support seat; 3. sliding column; 4. rotating wheel; 5. fixing frame; 6. screw rod; 7. injection tube; 8. scale line; 9. nozzle; 10. connecting tube; 11. mounting groove; 12. electric push rod; 13. clamping block; 14. injection pump; 15. dosing barrel; 16. anti-slip pattern. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0023] Example

[0024] In the prior art, in the case of mixed contaminated soil and uncontaminated soil in traditional injection wells, the injection equipment often injects contaminated soil and uncontaminated soil together for remediation, which is unable to achieve accurate layered remediation of the contaminated soil according to its depth, resulting in increased remediation costs.

[0025] See also Figure 1-5 The utility model provides a technical solution: an injection device for underground soil remediation, including an injection well 1 opened on the ground for soil remediation, the injection well 1 can be connected to a carbon nano-coated sieve tube, and the coating material on the surface of the sieve tube can be used as a physical activation pathway for the oxidant. When the oxidant (such as H2O2, sodium persulfate) is injected under pressure, it contacts the surface of the sieve tube, and an activation reaction occurs immediately to generate active substances such as free radicals. Subsequently, with the pressure, the activated oxidant enters the soil body and completes the degradation of organic pollutants. An injection component is arranged above the injection well 1.

[0026] By setting up the injection assembly, the soil can be accurately injected with medicine, the layered remediation of contaminated soil can be completed, the cost can be saved, and the waste of medicine can be avoided; the injection assembly includes a support seat 2, two sliding columns 3 and two rotating wheels 4, the support seat 2 is installed above the injection well 1, the two sliding columns 3 are slidably connected to the top of the support seat 2, the two rotating wheels 4 are rotatably connected to one end of the sliding column 3, the outer side of the support seat 2 is fixedly connected to a fixing frame 5, one side of the fixing frame 5 is connected to a screw rod 6 by a thread, and one end of the screw rod 6 is movably connected to At the other end of the sliding column 3, a drug injection tube 7 is arranged between the two rotating wheels 4, a scale line 8 is arranged on the outer side of the drug injection tube 7, an anti-slip pattern 16 is arranged on the outer side of the drug injection tube 7, and an end of the connecting tube 10 away from the drug injection tube 7 is connected to the drug outlet end of the injection pump 14, and a nozzle 9 is arranged at the bottom end of the drug injection tube 7; the drug injection tube 7 is pushed into the drug injection well 1, so that the drug injection tube 7 moves between the two rotating wheels 4, and the position of the nozzle 9 on the drug injection tube 7 inside the drug injection well 1 is controlled by observing the position of the scale line 8, so as to achieve accurate drug injection;

[0027] The two support seats 2 are each provided with an installation groove 11 on one side opposite to the other, and an electric push rod 12 is installed inside the installation groove 11. The push rod end of the electric push rod 12 is fixedly connected with a clamping block 13. The sliding column 3 is driven to move on the support seat 2 by the screw rod 6, so that the rotating wheel 4 is in contact with the outer side of the injection tube 7. The anti-slip groove 16 is set, so that the two rotating wheels 4 can limit the injection tube 7. The push rod of the electric push rod 12 is retracted, so that the clamping block 13 is separated from the outer side of the injection tube 7, which can play a positioning role for the downward moving injection tube 7 and prevent the injection tube 7 from being offset during the movement.

[0028] An injection pump 14 is installed on one side of the support seat 2, and a dosing barrel 15 is installed on one end of the injection pump 14; the dosing barrel 15 is connected to the drug inlet end of the injection pump 14 through a pipeline, and a connecting pipe 10 is provided at the top of the injection tube 7. By controlling the injection pump 14 to start, the injection pump 14 draws the medicine liquid into the dosing barrel 15, introduces it into the injection tube 7 through the connecting pipe 10, and then sprays it out through the nozzle 9 to repair the contaminated soil; two clamping blocks 13 are respectively in contact with the outside of the injection tube 7, and the clamping blocks 13 are arc-shaped blocks. By controlling the extension of the push rod of the electric push rod 12, the push rod of the electric push rod 12 drives the clamping block 13 to move, so that the clamping block 13 is in contact with the outside of the injection tube 7.

[0029] The working principle or structural principle is that when in use, the injection tube 7 is placed above the injection well 1 so that the injection tube 7 is located between the two rotating wheels 4, and the clamping block 13 is located on the outside of the injection tube 7. The push rod of the electric push rod 12 is extended by the switch group, so that the push rod of the electric push rod 12 drives the clamping block 13 to contact the outside of the injection tube 7 to clamp and fix the injection tube 7. When the injection tube 7 needs to be inserted into the inside of the injection well 1, the screw rod 6 is rotated to drive the sliding column 3 to move on the support seat 2 through the screw rod 6, so that the rotating wheel 4 contacts the outside of the injection tube 7. The anti-slip pattern 16 is set so that the two rotating wheels 4 can limit the injection tube 7. The push rod of the electric push rod 12 is controlled to retract by the switch group, so that the clamping block 13 is separated from the outside of the injection tube 7, which can play a positioning role for the downward moving injection tube 7 to prevent the injection tube 7 from deviating during the movement.

[0030] At this time, the injection tube 7 can be pushed toward the injection well 1 so that the injection tube 7 moves between the two rotating wheels 4. By observing the position of the scale line 8, the position of the nozzle 9 on the injection tube 7 inside the injection well 1 can be controlled, so as to achieve precise injection and complete the layered remediation of the contaminated soil. When the nozzle 9 reaches the appropriate position, the push rod of the electric push rod 12 is controlled to extend so that the push rod of the electric push rod 12 drives the clamping block 13 to move, so that the clamping block 13 abuts against the outside of the injection tube 7 to fix the injection tube 7. The injection pump 14 is started by controlling the switch group, and the liquid medicine is extracted into the inside of the dosing barrel 15 by the injection pump 14, introduced into the inside of the injection tube 7 through the connecting pipe 10, and then sprayed out through the nozzle 9 to repair the contaminated soil.

[0031] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0032] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0033] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drug injection device for underground soil remediation, comprising a drug injection well (1) opened on the ground for soil remediation, characterized in that: A drug injection assembly is arranged above the drug injection well (1); The injection assembly comprises a support seat (2), two sliding columns (3) and two rotating wheels (4); the support seat (2) is installed above the injection well (1); the two sliding columns (3) are slidably connected to the top of the support seat (2); the two rotating wheels (4) are rotatably connected to one end of the sliding column (3); a fixing frame (5) is fixedly connected to the outer side of the support seat (2); a screw rod (6) is connected to one side of the fixing frame (5) by a thread; one end of the screw rod (6) is movably connected to the other end of the sliding column (3); an injection tube (7) is arranged between the two rotating wheels (4); and a scale line (8) is arranged on the outer side of the injection tube (7).

2. The device for injecting medicine for underground soil remediation according to claim 1, characterized in that: An installation groove (11) is provided on one side opposite to the two support seats (2), an electric push rod (12) is installed inside the installation groove (11), and a clamping block (13) is fixedly connected to the push rod end of the electric push rod (12).

3. The device for injecting medicine for underground soil remediation according to claim 1, characterized in that: A syringe pump (14) is installed on one side of the support seat (2), and a medicine adding barrel (15) is installed on one end of the syringe pump (14).

4. The device for injecting medicine for underground soil remediation according to claim 3, characterized in that: The medicine adding barrel (15) is connected to the medicine inlet end of the injection pump (14) via a pipeline, and a connecting pipe (10) is provided at the top end of the medicine injection pipe (7).

5. The device for injecting medicine for underground soil remediation according to claim 2, characterized in that: The two clamping blocks (13) respectively abut against the outer sides of the drug injection tube (7), and the clamping blocks (13) are arc-shaped blocks.

6. The drug injection device for underground soil remediation according to claim 1, characterized in that: The bottom end of the drug injection tube (7) is provided with a nozzle (9).

7. The device for injecting medicine for underground soil remediation according to claim 4, characterized in that: The outer side of the drug injection tube (7) is provided with anti-slip grooves (16), and the end of the connecting tube (10) away from the drug injection tube (7) is connected to the drug outlet end of the injection pump (14).

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