Single-well double-irrigation biological enhancement spraying soil remediation device

Abstract

The invention discloses a single-well double-irrigation biologically-enhanced spraying soil remediation device, and relates to the technical field of contaminated soil regeneration, the single-well double-irrigation biologically-enhanced spraying soil remediation device comprises an irrigation well and a spraying mechanism, the irrigation well comprises an inner pipe, a movable pipe capable of rotating with the inner pipe is arranged in the inner pipe, a plurality of first grooves are formed in the inner pipe, and a plurality of second grooves are formed in the inner pipe; a plurality of first grooves are formed in the movable pipe, path arraying is carried out on the basis of the axial direction of the inner pipe so as to correspond to all to-be-repaired depths of soil, and a plurality of second grooves are formed in the movable pipe and are spirally arrayed on the basis of the axial direction of the movable pipe. According to the single-well double-irrigation biological enhancement spraying soil remediation device, the movable pipe is rotated in the inner pipe, so that any one of the multiple second grooves forming the spiral array coincides with the corresponding first groove in the fixed pipe, and the liquid outlet height of the inner pipe is changed; the remediation liquid can be intensively sprayed to the soil layer with the specific depth, layered remediation is achieved, the remediation efficiency is improved, and unnecessary agent loss is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of regeneration of contaminated soil, in particular to a single-well double-irrigation bio-enhanced spraying soil remediation device. Background Art

[0002] Regeneration and remediation of contaminated soil refers to the process of restoring contaminated soil to its original ecological function and use value through physical, chemical, biological and other methods.

[0003] For the repair of large areas of soil, drilling and irrigation are generally used for repair. Drilling and irrigation are mainly used for repairing the deep layer of soil, while the surface of the soil requires a spraying mechanism to leach the upper layer of soil, including: (1) The irrigation depth of the well is limited by the height of the liquid outlet on the well. If soil at different depths needs to be repaired, it is necessary to change the height of the well, move the well frequently, or open more liquid outlets. (2) When there are too many outlets on the irrigation well based on the depth of the soil, it is difficult to control the distribution of the repair fluid at different depths of the soil; (3) The liquid outlet of the irrigation well is opened at a lower position on the irrigation well. The repair liquid will flow to the deep layer first, but the repair liquid will flow to the deeper layer due to its own weight, causing waste. The upper layer is only eluted by spraying, resulting in uneven repair effects on the upper, middle and lower layers of the soil.

[0004] In view of the above, in order to carry out comprehensive remediation of contaminated soil and ensure the soil remediation effect, more remediation fluid is needed, during which a lot of remediation fluid is wasted and lost. For this reason, we propose a single-well double-irrigation bio-enhanced spray soil remediation device. Summary of the invention

[0005] [Technical issues solved] In view of the shortcomings of the prior art, the present invention provides a single-well dual-irrigation bio-enhanced spray soil remediation device, which has the advantages of layered centralized remediation and can effectively solve the problems in the background technology.

[0006]

Technical solution

[0007] Preferably, the spray mechanism comprises a plurality of nozzles, to which a pump for high-pressure pumping of liquid is commonly connected, and the spray mechanism is set up based on the distance between the nozzles and the soil surface.

[0008] Preferably, in order to enable trough 1 to discharge liquid in layers at a greater soil depth, a greater number of troughs 1 are required. Trough 1 is not limited to the rectangular shape as shown in the figure, but may be any shape known to those skilled in the art.

[0009] Preferably, the bottom ends of the inner tube and the movable tube are both in a closed state, so that during the soil remediation process, the remediation liquid flows out from the sides of the fixed tube rather than from the bottom of the fixed tube to the greatest extent, so that the remediation liquid is concentrated to the current remediation depth to the greatest extent.

[0010] Preferably, in order to ensure the normal function of the inner tube and the movable tube, the structural dimensions of groove one and groove two should be equal, and the positions after rotation and overlap should be directly opposite, so as to avoid the possibility of leakage between the inner tube and the movable tube to the greatest extent.

[0011] Preferably, a fixed tube is arranged on the outside of the inner tube, and there is a gap between the inner tube and the fixed tube. A plurality of partitions are arranged in the gap. The partitions are set up based on the plurality of grooves forming the path array to block the gap between the fixed tube and the movable tube in layers, and a plurality of grooves are also provided on the fixed tube.

[0012] Preferably, the inner tube and the fixed tube are integrally formed, or the inner tube is fixedly connected to the inside of the fixed tube, and in the gap between the fixed tube and the movable tube, the spacer matches the structural size of the gap.

[0013] Preferably, the multiple grooves on the same circumferential direction of the fixed pipe are based on its axial annular array, so that when the repair fluid enters the gap between the fixed pipe and the inner pipe, it can flow out evenly through the multiple grooves on the same circumferential direction of the annular array, so that the repair fluid is evenly distributed at the current depth.

[0014] Preferably, a plurality of grooves 2 are provided in the same vertical direction at a position on the movable tube that deviates from the plurality of grooves 2 that form the spiral array, and a plurality of grooves 1 are provided in the same vertical direction corresponding to the plurality of grooves 2 in the same vertical direction on the inner tube.

[0015] Preferably, when there are two groups of multiple grooves 1 and 2 in the same vertical direction, the inner tube and the movable tube can be in a fully conductive state, thereby enhancing the applicability of the well filling without considering the cost of the repair fluid. In this state, the soil of the contaminated site can be repaired with maximum efficiency.

[0016] Preferably, the plurality of grooves 2 in the same vertical direction do not overlap with any of the plurality of grooves 2 constituting the spiral array. Figure 4 In the structural state shown, the distribution angle of the six grooves 2 constituting the spiral array is 60° in the axial viewing angle, and the six grooves 2 in the same vertical direction are located between each distribution angle.

[0017] Preferably, there is only one partition in the gap, and other partitions are removed. An adjustment component is provided on the inner side of the movable tube, and the adjustment component is used to adjust the depth or height position of the partition based on the fixed tube and the movable tube.

[0018] Preferably, the adjustment assembly includes a screw rod rotatably connected to the inner tube, a screw seat meshing with the screw rod is arranged on the screw rod, a connecting frame is arranged between the screw seat and the spacer, the screw seat is fixedly connected to the spacer via the connecting frame, a limiting frame is arranged between the connecting frame and the screw rod, the limiting frame is rotatably connected to the screw rod and can slide relative to the connecting frame, and during the process of rotating the screw rod, the limiting frame needs to be kept stationary.

[0019] Preferably, one end of the screw located inside the inner tube is rotatably connected to the inner bottom of the inner tube via a bearing, the screw seat is fixedly connected to one end of the connecting frame, the other end of the connecting frame is fixedly connected to the partition, the connecting frame has an "n"-shaped structure, which matches the structure of the inner tube, and the limit frame is rotatably connected to the end of the screw located outside. During the process of adjusting the position of the spacer, the limit frame is fixed by all fixing methods familiar to technicians in this field, such as fixing the limit frame to the outside by screws or clips.

[0020] Preferably, at least one detection member is provided on the partition, and a force-bearing member is fixedly connected to a portion of the detection member away from its detection probe, and the force-bearing member is rotatably connected to the partition.

[0021] Preferably, a force-applying member is provided on the inner tube at a position corresponding to the force-bearing member. When the partition moves until the force-bearing member contacts the force-applying member, the partition is continuously moved so that the force-bearing member drives the detection member to rotate based on the groove on the fixed tube, extend out of the fixed tube and insert into the soil.

[0022] Preferably, at least one fitting groove is provided on the spacer, and the fitting groove fits with the structure of the force-applying member.

[0023] Preferably, the detection element is any soil sensor known to those skilled in the art, including a temperature and humidity sensor and a conductivity sensor.

[0024] Preferably, the force-bearing member is a gear, a base frame is provided between the force-bearing member and the spacer, the base frame is fixedly connected to the spacer, and the base frame and the force-bearing member are rotatably connected via a bearing, and the force-applying member is a rack.

[0025] Preferably, the length of the rack is set based on the fact that when the gear moves from the end of the rack to the end thereof, the gear drives the detection member to rotate so that it is sufficient to extend out of the fixed pipe and insert into the soil.

[0026] Preferably, the optimal rotation angle of the force-bearing member is 90°, and the detection member is mounted on the lower end of the partition. When the force-bearing member is not under force, the detection member is in a vertical state due to its gravity, that is, it is located in the gap between the inner tube and the fixed tube.

[0027] Preferably, a wiping member such as a scraper is provided in a groove on the fixed pipe corresponding to the protruding portion of the detection member, and after the soil pollution index of the current depth is detected, the scraper can be used to scrape off excess residual soil on the detection member to the greatest extent.

[0028] Preferably, a plurality of detection elements are arranged in a circular array on the partition, so that the soil in various directions near the fixed pipe can be detected simultaneously at the same depth, thereby ensuring the detection accuracy of the detection elements.

[0029] Preferably, after the detection member is installed, since the partition needs to be moved and when there is no detection requirement, the number of fitting grooves and their distribution angles should be sufficient to ensure that when the partition moves based on one of its fitting grooves and the force-applying member, the force-bearing member on the detection member is not in the same vertical direction as any force-applying member, so as to avoid frequent use of the detection member during the movement of the partition.

[0030] Preferably, a sealing member is provided on the partition, and the sealing member is in close contact with the fixed tube and the inner tube, so as to block the liquid located on the upper layer of the partition without affecting the movement of the partition based on the force-applying member.

[0031] Preferably, the seal can be a sealing gasket of any material well known to technicians in the field, and is divided into a fixed part and a movable part on the seal. The outer edge of the sealing gasket serves as a fixed part and is fixedly connected to the spacer, while the inner edge of the seal can float and serves as a movable part to adapt to force deformation after contact with the force-applying member.

[0032]

Beneficial Effects

[0033] Figure 1 The present invention is a schematic diagram of the overall structure of a single-well dual-irrigation bio-enhanced spray soil remediation device.

[0034] Figure 2 The present invention is a schematic structural diagram of a fixed pipe used in a single-well dual-irrigation bio-enhanced spray soil remediation device.

[0035] Figure 3 The present invention is a schematic structural diagram of a fixed pipe used in a single-well dual-irrigation bio-enhanced spray soil remediation device as a preferred embodiment.

[0036] Figure 4 The present invention is a schematic structural diagram of a movable pipe used in a single-well dual-irrigation bio-enhanced spray soil remediation device.

[0037] Figure 5 This is a structural analysis diagram of a fixed pipe used in a single-well dual-irrigation bio-enhanced spray soil remediation device of the present invention.

[0038] Figure 6 The present invention is a schematic structural diagram of an adjustment component for a single-well dual-irrigation bio-enhanced spray soil remediation device.

[0039] Figure 7 The present invention is a schematic diagram of the connection state of the regulating assembly used in the single-well dual-irrigation bio-enhanced spray soil remediation device.

[0040] Figure 8The present invention is a schematic diagram of the installation of a detection component for a single-well dual-irrigation bio-enhanced spray soil remediation device.

[0041] Fig. 9 The present invention is a schematic structural diagram of a fixed pipe partition for a single-well dual-irrigation bio-enhanced spray soil remediation device.

[0042] Fig.10 It is a side view of the partial structure of a single-well dual-irrigation bio-enhanced spray soil remediation device of the present invention.

[0043] In the figure: 1. Fixed tube; 2. Movable tube; 3. Adjustment component; 4. Inspection component; 11. Groove 1; 12. Inner tube; 13. Force applying member; 14. Spacer; 141. fitting groove; 142. sealing member; 21. Slot 2; 31. Screw rod; 32. Screw seat; 33. Connecting frame; 34. Limiting frame; 41. Load-bearing member; 42. Base frame. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, objectives and functional effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] [Example 1] In order to address the shortcomings of the existing technology, such as Figure 1 As shown, the present invention provides a single-well dual-irrigation bio-enhanced spray soil remediation device, including an irrigation well and a spray mechanism, the spray mechanism includes a plurality of nozzles, and the nozzles are commonly connected to a pump for high-pressure pumping of liquid. The installation basis of the spray mechanism is the distance between the nozzles and the soil surface.

[0046] It should be noted that in the process of soil remediation, the irrigation well is installed deep under the soil surface of the contaminated site, and a spraying mechanism is set up according to the actual remediation needs. The spraying mechanism is set up on the soil surface and at a certain distance from the soil surface. Technicians in the field of spraying mechanism can refer to the existing technology for setting up. In this embodiment, the setting up method and use method of the spraying mechanism are not further limited.

[0047] After the fixed pipe 1 is installed, the movable pipe 2 is rotated inside the fixed pipe 1 according to the required repair depth of the soil to be repaired, so that the connection relationship between the through grooves on the fixed pipe 1 and the movable pipe 2 changes, thereby changing the position of the liquid outlet on the fixed pipe 1.

[0048] After the position of the liquid outlet on the fixed pipe 1 is changed, the repair liquid is added to the inside of the movable pipe 2, so that the repair liquid flows out through the movable pipe 2 and the fixed pipe 1 into the deep layer of the soil for repair. Considering the pressure required for the repair liquid to penetrate into the soil, it can be understood by those skilled in the art that, according to actual usage needs, a pressurizing device such as an air pump is installed on the movable pipe 2.

[0049] Specifically, Figures 2~5 As shown, a fixed pipe 1 and a movable pipe 2 for a single-well double-irrigation biological enhanced spray soil remediation device, the irrigation well includes an inner pipe 12, and a movable pipe 2 that can rotate therewith is arranged inside the inner pipe 12, and a plurality of grooves 11 are opened on the inner pipe 12, and the plurality of grooves 11 are arranged in a path array based on the axial direction of the inner pipe 12, so as to correspond to various depths of soil to be remediated, and a plurality of grooves 21 are also opened on the movable pipe 2, and the plurality of grooves 21 are arranged in a spiral array based on the axial direction of the movable pipe 2, and the spiral height between each groove 21 corresponds to the path length between the plurality of grooves 11 constituting the path array, and the structural dimensions of the grooves 11 and the grooves 21 are equivalent; A fixed tube 1 is arranged outside the inner tube 12, and there is a gap between the inner tube 12 and the fixed tube 1. A plurality of partitions 14 are arranged in the gap. The partitions 14 are arranged based on the plurality of grooves 11 constituting the path array to block the gap between the fixed tube 1 and the movable tube 2 in layers, and the fixed tube 1 is also provided with a plurality of grooves 11. The inner tube 12 and the fixed tube 1 are integrally formed, or the inner tube 12 is fixedly connected to the inside of the fixed tube 1. In the gap between the fixed tube 1 and the movable tube 2, the spacer 14 matches the structural size of the gap.

[0050] In order to enable the groove 11 to discharge liquid in layers at a greater depth of the soil, a greater number of grooves 11 are required. The groove 11 is not limited to a rectangular shape as shown in the figure, but can be any shape known to those skilled in the art. The bottom ends of the inner tube 12 and the movable tube 2 are both in a closed state, so that during the soil remediation process, the remediation liquid flows out from the side of the fixed tube 1 to the greatest extent rather than from the bottom of the fixed tube 1, so that the remediation liquid is concentrated to the current remediation depth to the greatest extent; To ensure the normal function of the inner tube 12 and the movable tube 2, the structural dimensions of the groove 1 11 and the groove 2 21 should be equal, and the positions after rotation and overlap should be directly opposite, so as to avoid the possibility of leakage between the inner tube 12 and the movable tube 2 to the greatest extent.

[0051] It should be noted that the present invention is a single-well dual-irrigation bio-enhanced spray soil remediation device. Through the provision of a fixed pipe 1 and a movable pipe 2, during the soil remediation process, a deep pit equivalent to the irrigation well structure is drilled on the soil of the contaminated site, and then the irrigation well is buried in the deep pit.

[0052] According to the required depth of the soil to be repaired, the movable tube 2 is rotated inside the fixed tube 1 so that the plurality of grooves 21 on the movable tube 2 that form a spiral array based on its axial direction can be selectively connected to the corresponding grooves 11. It can be understood by those skilled in the art that, in order to first repair the upper layer of the contaminated site, the movable tube 2 is rotated inside the inner tube 12 so that the movable tube 2 is rotated to the groove 21 on it corresponding to the upper layer of the contaminated site and the groove 1 11 on the inner tube 12 corresponding to it is connected; In this state, because the multiple grooves 21 on the movable tube 2 form a spiral array based on its axial direction, when the fixed tube 1 and the movable tube 2 are turned on, only a single group of grooves 11 and grooves 21 match each other among the multiple grooves 21 forming the spiral array, thereby forming a centralized liquid discharge repair for the designated layer.

[0053] It is worth mentioning that, by setting up a movable tube 2 that can rotate relatively with the inner tube 12 inside, and opening a plurality of grooves 21 forming a spiral array based on the axial direction on the movable tube 2, and opening a plurality of grooves 1 11 based on the axial path array on the inner tube 12, the movable tube 2 and the inner tube 12 are in a conductive state based on the grooves 1 11 and 21 opened thereon, and only have a conductive relationship in one circumferential direction, based on this one circumferential direction, corresponding to a layer of soil at a depth of the site to be repaired, and by rotating the movable tube 2 inside the inner tube 12, any of the plurality of grooves 21 forming the spiral array overlaps with the corresponding groove 1 11 on the fixed tube 1, thereby changing the liquid outlet height of the inner tube 12, so that the repair liquid can be concentratedly sprayed to a soil layer of a specific depth, realizing layered repair, improving the repair efficiency, and avoiding unnecessary loss of reagents; Moreover, the repair depth can be changed only by rotating the movable tube 2, so the use method is more energy-saving and more flexible.

[0054] The partition 14 disposed between the fixed tube 1 and the inner tube 12 can make the repair fluid flow out through the inner tube 12 to the greatest extent from the groove 11 on the fixed tube 1 corresponding to the groove 11 on the inner tube 12 in the conductive state and other grooves 11 on the fixed tube 1 corresponding to the groove 11 in the same circumferential direction; In addition, in order to increase the number of layers that can be repaired and treated by filling the well, in this embodiment, those skilled in the art can understand that the number of troughs 11 required to be installed is also greater.

[0055] As a preferred embodiment, the soil remediation method for general contaminated sites such as industrial contaminated sites and agricultural contaminated areas should be from top to bottom. When the soil is remediated from the surface, on the one hand, it can prevent the surface pollutants from further penetrating downward during the remediation process, effectively reducing the risk of secondary pollution. On the other hand, excessive remediation liquid penetrates into the lower layer and is reasonably utilized. As for deep pollution, such as that caused by underground tank leakage and contaminated groundwater flow, the soil can be repaired and treated from bottom to top in a soil layer distribution manner, with a focus on controlling deep pollution sources to prevent pollution from spreading to the surface.

[0056] As a preferred embodiment, multiple grooves 11 on the same circumferential direction of the fixed pipe 1 are based on its axial annular array. Therefore, when the repair fluid enters the gap between the fixed pipe 1 and the inner pipe 12, it can flow out evenly through the multiple grooves 11 in the annular array on the same circumferential direction, so that the repair fluid is evenly distributed at the current depth.

[0057] As a preferred embodiment, a plurality of second grooves 21 are further provided in the same vertical direction at a position deviating from the plurality of second grooves 21 forming the spiral array on the movable tube 2, and a plurality of first grooves 11 are also provided in the same vertical direction on the inner tube 12 corresponding to the plurality of second grooves 21 in the same vertical direction; When there are two groups of multiple grooves 11 and 21 in the same vertical direction, the inner tube 12 and the movable tube 2 can be in a fully conductive state, so as to enhance the applicability of the well filling without considering the cost of the repair fluid. In this state, the soil of the contaminated site can be repaired with maximum efficiency; The plurality of grooves 21 in the same vertical direction do not overlap with any of the grooves 21 in the plurality of grooves 21 constituting the spiral array. Figure 4 In the structural state shown, the distribution angle of the six grooves 21 constituting the spiral array is 60° in the axial viewing angle, and the six grooves 21 in the same vertical direction are located between each distribution angle.

[0058] [Example 2] Based on the above embodiment 1, considering that a spacer 14 is required between the fixed pipe 1 and the inner pipe 12 of each single-layer slot 11, in order to improve the applicability of a single spacer 14, this embodiment is proposed: A single-well double-irrigation bio-enhanced spray soil remediation device, in which only one partition 14 exists in the gap, and other partitions 14 are removed. An adjustment component 3 is arranged on the inner side of the movable pipe 2, and the adjustment component 3 is used to adjust the depth or height position of the partition 14 based on the fixed pipe 1 and the movable pipe 2.

[0059] Specifically, Figure 6 , 7As shown, an adjustment component 3 for a single-well double-irrigation bio-enhanced spray soil remediation device, the adjustment component 3 includes a screw rod 31 rotatably connected to the inner tube 12, a screw seat 32 meshing with the screw rod 31 is provided, a connecting frame 33 is provided between the screw seat 32 and the partition 14, the screw seat 32 is fixedly connected to the partition 14 through the connecting frame 33, a limiting frame 34 is provided between the connecting frame 33 and the screw rod 31, the limiting frame 34 is rotatably connected to the screw rod 31 and can slide relatively with the connecting frame 33, and in the process of rotating the screw rod 31, the limiting frame 34 needs to be kept stationary; One end of the screw rod 31 located inside the inner tube 12 is rotatably connected to the inner bottom of the inner tube 12 through a bearing, the screw seat 32 is fixedly connected to one end of the connecting frame 33, and the other end of the connecting frame 33 is fixedly connected to the partition 14. The connecting frame 33 has an "n"-shaped structure, which matches the structure of the inner tube 12. The limit frame 34 is rotatably connected to the end of the screw rod 31 located outside. In the process of adjusting the position of the partition 14, the limit frame 34 is fixed by all fixing methods familiar to technicians in this field, such as fixing the limit frame 34 to the outside by screws or buckles.

[0060] It should be noted that the present invention is a single-well dual-irrigation bio-enhanced spray soil remediation device. Through the setting of the adjustment component 3, in this embodiment, unlike the above-mentioned embodiment 1, only one partition 14 needs to be set up. If it is necessary to adjust the height of the partition 14 between the fixed pipe 1 and the movable pipe 2 according to the required repair depth of the soil to be repaired, the screw 31 is rotated, and the limit frame 34 is fixed so that it cannot rotate during the rotation of the screw 31. As the screw 31 rotates, the screw seat 32 on the screw 31 slides relatively based on the connecting frame 33, and the screw seat 32 drives the partition 14 to move to a suitable position.

[0061] It is worth mentioning that by installing a fixed pipe 1 on the outside of the inner pipe 12, a groove 11 is opened in a circular array on the fixed pipe 1, so that the repair liquid can flow evenly from the four sides of the fixed pipe 1 into the soil, and can evenly cover all directions in the soil, thereby improving the comprehensiveness and uniformity of the repair effect. By adjusting the height of the spacer 14 by adjusting the adjustment component 3, the spacer 14 can change and control the gap depth between the fixed pipe 1 and the movable pipe 2, so that the repair liquid can flow out to the maximum extent in the current designated layer.

[0062] [Example 3] Before, during or after soil remediation, it is necessary to detect the degree of soil contamination. For soil in deeply contaminated sites, it is also necessary to perform layered detection of the pollution index. For this purpose, based on the above-mentioned embodiment 2, this embodiment is proposed: Specific, and Figures 7-10As shown, a fixed pipe 1 and a detection member 4 for a single-well double-irrigation bio-enhanced spray soil remediation device are provided. At least one detection member 4 is arranged on the partition 14. A force-bearing member 41 is fixedly connected to a portion of the detection member 4 away from its detection probe, and the force-bearing member 41 is rotatably connected to the partition 14; a force-applying member 13 is arranged on the inner tube 12 at a portion corresponding to the force-bearing member 41. When the partition 14 moves to the point where the force-bearing member 41 contacts the force-applying member 13, the partition 14 is continuously moved so that the force-bearing member 41 drives the detection member 4 to rotate to a groove 11 on the fixed pipe 1, extend out of the fixed pipe 1 and insert into the soil; at least one fitting groove 141 is opened on the partition 14, and the fitting groove 141 fits with the structure of the force-applying member 13.

[0063] The detection member 4 is any soil sensor known to those skilled in the art, including a temperature and humidity sensor and a conductivity sensor; the force-bearing member 41 is a gear, a base frame 42 is provided between the force-bearing member 41 and the partition 14, the base frame 42 is fixedly connected to the partition 14, and the base frame 42 and the force-bearing member 41 are rotatably connected through a bearing, and the force-applying member 13 is a rack; The length of the rack is set based on the fact that when the gear moves from the end of the rack to the end thereof, the gear drives the detection member 4 to rotate so that it is enough to extend out of the fixed pipe 1 and insert into the soil; the preferred rotation angle of the force-bearing member 41 is 90°, and the detection member 4 is set at the lower end of the partition 14. When the force-bearing member 41 is not under force, the detection member 4 is in a vertical state due to its gravity, that is, it is located in the gap between the inner pipe 12 and the fixed pipe 1; A wiping member such as a scraper is provided in the groove 11 on the fixed pipe 1 corresponding to the extended part of the detection member 4. After the soil pollution index of the current depth is detected, the scraper can be used to scrape off the excess residual soil on the detection member 4 to the greatest extent; a plurality of detection members 4 are arranged in a circular array on the partition 14, so that the soil in various directions near the fixed pipe 1 can be detected simultaneously at the same depth, thereby ensuring the detection accuracy of the detection member 4; After the detection member 4 is installed, because it is necessary to move the partition 14, and when there is no detection requirement, the number of the fitting grooves 141 and their distribution angles should be sufficient to ensure that when the partition 14 moves with the force-applying member 13 based on one of its fitting grooves 141, the force-bearing member 41 on the detection member 4 is not in the same vertical direction as any force-applying member 13, so as to avoid frequent use of the detection member 4 during the movement of the partition 14.

[0064] It should be noted that the present invention is a single-well dual-irrigation biological enhanced spray soil remediation device. Through the fixed pipe 1 and the detection member 4, if it is necessary to detect the pollution index of the soil at different depths of the contaminated site, similarly, by rotating the screw 31, the screw seat 32 drives the partition 14 to move to the corresponding depth or height. Based on the above-mentioned embodiment 2, in order to ensure the normal operation of the adjustment component 3, it is necessary to keep the limit frame 34 stationary and non-rotatable during the rotation of the screw 31; Before or after the partition 14 is close to the corresponding depth or height, it is necessary to change the circumferential position of the partition 14 based on the fixed pipe 1 by rotating the limit frame 34, that is, to change the position of the detection member 4 connected to the partition 14, so that the detection member 4 is in the same vertical direction on one of its force-applying members 13, and the position of the groove 11 facing the force-applying member 13 is the position of the soil to be detected, and then the partition 14 is controlled by the adjustment component 3 to move axially based on the well filling. When the partition 14 moves to the point where the force-bearing member 41 on the detection member 4 contacts the force-applying member 13, while the partition 14 continues to move, the force-bearing member 41 is rotated by the force-applying member 13, and then drives the detection member 4 to rotate toward the corresponding groove 11, until the detection member 4 extends out of the fixed pipe 1 and is inserted into the soil, the pollution index in the soil can be detected or monitored.

[0065] In the process of changing the circumferential position of the partition 14 based on the fixed tube 1 , it is necessary to maintain the screw 31 from rotating on its own, that is, the screw 31 rotates together with the limiting frame 34 to prevent the partition 14 from sliding on its own in the axial direction of the fixed tube 1 .

[0066] It is worth mentioning that, on the basis of the original adjustment component 3 and the spacer 14, a detection component 4 is additionally installed. The adjustment component 3 drives the spacer 14 to move at different depths in the soil. During the movement of the spacer 14, the detection component 4 is driven to extend out of the fixed pipe 1 into the soil, so that the pollution index of the soil at different depths can be detected or monitored without the need for complicated soil sampling operations, and the changes in the soil pollution index can be dynamically monitored during the repair process, so as to adjust the repair plan in time and improve the repair efficiency.

[0067] As a preferred embodiment, a sealing member 142 is provided on the partition 14, and the sealing member 142 is in close contact with the fixed tube 1 and the inner tube 12, and is used to block the liquid located on the upper layer of the partition 14 without affecting the movement of the partition 14 based on the force applying member 13; The seal 142 can be a sealing gasket made of any material known to technicians in this field, and is divided into a fixed part and a movable part on the seal 14. The outer edge of the seal gasket serves as a fixed part and is fixedly connected to the partition 14, and the inner edge of the seal 142 can float and serve as a movable part to adapt to the force deformation after contacting the force-applying member 13.

[0068] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed for protection.

Claims

1. A single-well dual-irrigation bio-enhanced spray soil remediation device, comprising an irrigation well and a spraying mechanism, characterized in that: The irrigation well comprises an inner tube (12), inside of which a movable tube (2) is arranged which can rotate with the inner tube (12), the inner tube (12) is provided with a plurality of grooves one (11), the plurality of grooves one (11) are arranged in a path array based on the axial direction of the inner tube (12), corresponding to various depths of soil to be repaired, the movable tube (2) is also provided with a plurality of grooves two (21), the plurality of grooves two (21) are arranged in a spiral array based on the axial direction of the movable tube (2), and the spiral height between each groove two (21) corresponds to the path length between the plurality of grooves one (11) constituting the path array, and the structural dimensions of the grooves one (11) and the grooves two (21) are equivalent.

2. The single-well dual-irrigation bio-enhanced spray soil remediation device according to claim 1 is characterized by: A fixed tube (1) is arranged on the outer side of the inner tube (12), a gap is present between the inner tube (12) and the fixed tube (1), a plurality of partitions (14) are arranged in the gap, the partitions (14) are arranged based on the plurality of grooves (11) constituting a path array to perform layered blocking on the gap between the fixed tube (1) and the movable tube (2), and a plurality of grooves (11) are also provided on the fixed tube (1).

3. The single-well dual-irrigation bio-enhanced spray soil remediation device according to claim 2 is characterized by: A plurality of grooves (11) on the same circumferential direction of the fixed pipe (1) are arranged in an axial annular array.

4. The single-well dual-irrigation bio-enhanced spray soil remediation device according to claim 1 is characterized by: A plurality of second grooves (21) are further provided in the same vertical direction at a position on the movable tube (2) that deviates from the plurality of second grooves (21) forming the spiral array, and a plurality of first grooves (11) are also provided in the same vertical direction on the inner tube (12) corresponding to the plurality of second grooves (21) in the same vertical direction.

5. The single-well dual-irrigation bio-enhanced spray soil remediation device according to claim 2 is characterized by: There is only one spacer (14) in the gap, and other spacers (14) are removed. An adjustment component (3) is provided on the inner side of the movable tube (2), and the adjustment component (3) is used to adjust the depth or height position of the spacer (14) based on the fixed tube (1) and the movable tube (2).

6. The single-well dual-irrigation bio-enhanced spray soil remediation device according to claim 5 is characterized by: The adjusting assembly (3) comprises a screw rod (31) rotatably connected to the inner tube (12); a screw seat (32) meshing with the screw rod (31) is provided on the screw rod (31); a connecting frame (33) is provided between the screw seat (32) and the spacer (14); the screw seat (32) is fixedly connected to the spacer (14) via the connecting frame (33); a limiting frame (34) is provided between the connecting frame (33) and the screw rod (31); the limiting frame (34) is rotatably connected to the screw rod (31) and can slide relative to the connecting frame (33).

7. The single-well dual-irrigation bio-enhanced spray soil remediation device according to claim 5 is characterized by: At least one detection member (4) is arranged on the partition (14); a force-bearing member (41) is fixedly connected to a portion of the detection member (4) away from its detection probe; the force-bearing member (41) is rotatably connected to the partition (14); A force-applying member (13) is provided on the inner tube (12) at a position corresponding to the force-bearing member (41); when the spacer (14) moves to the point where the force-bearing member (41) contacts the force-applying member (13), the spacer (14) is continuously moved, so that the force-bearing member (41) drives the detection member (4) to rotate to the groove 1 (11) on the fixed tube (1), extend out of the fixed tube (1) and insert into the soil; At least one fitting groove (141) is provided on the spacer (14), and the fitting groove (141) fits with the structure of the force applying member (13).

8. The single-well dual-irrigation bio-enhanced spray soil remediation device according to claim 7 is characterized by: A sealing member (142) is provided on the partition (14), and the sealing member (142) is in close contact with the fixed tube (1) and the inner tube (12), and is used to block the liquid located on the upper layer of the partition (14) without affecting the movement of the partition (14) based on the force applying member (13).

Images