A soil leaching and remediation system

Abstract

The present invention belongs to the technical field of soil remediation equipment and provides a soil leaching and remediation system, comprising a frame, a remediation box provided on the frame, the remediation box having a holding cavity for holding soil and remediation liquid, a spraying device provided above the remediation box, the spraying device being used to spray remediation liquid into the remediation box, and further comprising: a mixing device provided in the remediation box and rotatably connected to the remediation box; and a driving device provided on the frame and transmission-connected to the mixing device; wherein, in a working state, the driving device drives the mixing device to rotate so that soil or a mixture of soil and remediation liquid circulates in the remediation box. The soil leaching and remediation system provided by the present invention has a simple structure, a reasonable design, a good remediation effect, and better remediation uniformity.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation equipment, and in particular to a soil leaching and remediation system. Background Art

[0002] Currently, contaminated soil is mostly remediated using a shower method. There are two common shower methods: in-situ and ex-situ. Ex-situ shower remediation involves excavating the contaminated soil from the ground, screening it for impurities, and then transferring it to a suitable spraying device. The spraying process allows a chemical solution to come into contact with the heavy metals and petroleum contaminants in the soil. Once the soil is purified, it is backfilled.

[0003] In the prior art, patent application CN114405983B discloses a contaminated soil remediation device based on ex situ chemical leaching. The device comprises a base and a container. A first transverse cylinder, rotatably mounted within the base, is mounted on the right end of a rotating shaft via a one-way bearing. The rotating shaft, located within the base, is connected to a first motor. A second transverse cylinder is also unidirectionally mounted on the shaft. During use, a target amount of soil is loaded into the container, and remediation fluid is sprayed onto the soil within the container, thereby achieving soil remediation.

[0004] However, the soil deposited in the holding box cannot fully contact with the repair liquid, resulting in poor repair effect. Moreover, since the repair liquid that the soil located above contacts is the repair liquid that has not yet contacted the soil, and the repair liquid that the soil located below contacts is the repair liquid that has already reacted with the soil located above, it is easy to cause inconsistent repair effects on different layers of soil. Summary of the Invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a soil leaching and remediation system to solve or alleviate the above-mentioned technical problems in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides a soil leaching and remediation system, comprising a frame, a remediation box provided on the frame, the remediation box having a receiving cavity for accommodating soil and remediation liquid, a spraying device provided above the remediation box, the spraying device being used to spray remediation liquid into the remediation box, and further comprising:

[0007] a mixing device, which is disposed in the repair box and is rotatably connected to the repair box; and

[0008] a driving device, which is disposed on the frame and is in driving connection with the mixing device;

[0009] Wherein, in the working state, the driving device drives the mixing device to rotate, so that the soil or the mixture of soil and repair liquid flows in the repair box.

[0010] Furthermore, it also includes a flow diverter, which is hollow and open at both ends, and has a plurality of drainage holes on its side wall. The flow diverter is arranged in the repair box and sleeved outside the mixing device;

[0011] Wherein, in the working state, the driving device drives the mixing device to rotate in the repair box to form a pressure difference, so that the soil and the repair fluid circulate inside and outside the diverter.

[0012] Furthermore, the driving device includes:

[0013] a transmission shaft, which is rotatably connected to the frame and has a power output end drivingly connected to the mixing device; and

[0014] The first motor is fixedly connected to the frame, and a power output shaft thereof is transmission-connected to the mixing device.

[0015] Furthermore, it also includes:

[0016] A mounting bracket is rotatably connected to the frame, is sleeved on the transmission shaft and is rotatably connected to the transmission shaft, and has a first position and a second position. The repair box is arranged on the mounting bracket and can move with the mounting bracket, wherein the mounting bracket is placed in the first position so that the opening of the repair box faces upward, and the mounting bracket is placed in the second position so that the opening of the repair box faces downward;

[0017] a locking device provided on the frame and the mounting bracket, wherein in a working state, the locking device is placed in a locked state to prevent the mounting bracket from rotating, and in a non-working state, the unlocking assembly is placed in an unlocked state to enable the mounting bracket to reciprocate between a first position and a second position; and

[0018] A clutch device is provided on the mounting bracket and the transmission shaft. In a working state, the clutch device connects the mounting bracket to the transmission shaft so that the first motor can drive the mounting bracket to rotate. In a non-working state, the clutch device decouples the mounting bracket from the transmission shaft so that the first motor cannot drive the mounting bracket to rotate.

[0019] Furthermore, the clutch device includes:

[0020] Two clutch blocks are provided, the two clutch blocks are arranged opposite to each other and are slidably connected to the mounting frame, and a groove adapted to the transmission shaft is provided on opposite sides of the two clutch blocks, and the groove has a third position and a fourth position; and

[0021] The first drive assembly is arranged on the mounting frame and is in transmission connection with the clutch block. In the working state, the first drive assembly places the clutch block in the fourth position so that the side wall of the groove contacts the side wall of the transmission shaft, thereby enabling the transmission shaft to transmit power to the mounting frame. In the non-working state, the first drive assembly places the clutch block in the third position so that the side wall of the groove is separated from the side wall of the transmission shaft, thereby preventing the transmission shaft from transmitting power to the mounting frame.

[0022] Furthermore, the side wall of the groove and the side wall of the transmission shaft are provided with mutually matching limiting teeth.

[0023] Furthermore, it also includes a detection component, which is arranged on the frame and / or the mounting frame, and the detection component is used to detect the position of the mounting frame. In the working state, when the detection component detects that the mounting frame moves from the second position to the first position, the first motor stops and the clutch component is converted from the engaged state to the disengaged state. When the detection component detects that the mounting frame moves to the second position, the first motor stops.

[0024] Beneficial effects of the present invention:

[0025] The soil leaching and remediation system provided by the present invention provides a mixing component in the remediation box, so that the soil or a mixture of soil and remediation liquid flows in the remediation box, thereby making the soil and the remediation liquid fully contact, thereby achieving the purpose of providing remediation effect and remediation uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0027] Figure 1 A three-dimensional view of a soil leaching and remediation system provided in Example 1 of the present invention;

[0028] Figure 2 for Figure 1 A cross-sectional view of a soil leaching remediation system is shown;

[0029] Figure 3A cross-sectional view of a soil leaching and remediation system provided in Example 2 of the present invention;

[0030] Figure 4 A three-dimensional view of a soil leaching and remediation system provided in Example 3 of the present invention;

[0031] Figure 5 for Figure 4 A cross-sectional view of a soil leaching remediation system is shown;

[0032] Figure 6 for Figure 2 AA shown, Figure 3 The CC shown and Figure 5 Cross-sectional view in the EE direction shown; (Example 1)

[0033] Figure 7 for Figure 6 An enlarged view of section G is shown;

[0034] Figure 8 for Figure 2 AA shown, Figure 3 The CC shown and Figure 5 Cross-sectional view in the EE direction shown; (Example 1)

[0035] Figure 9 for Figure 8 An enlarged view of section H is shown;

[0036] Figure 10 for Figure 2 BB shown, Figure 3 DD shown and Figure 5 A cross-sectional view in the FF direction is shown;

[0037] Figure 11 A diagram showing the combined structure of the detection assembly and the mounting bracket provided in the first embodiment of the present invention;

[0038] Figure 12 This is a structural view of the combination of the detection component and the mounting bracket provided in the second embodiment of the present invention.

[0039] Reference numerals:

[0040] 100, frame; 200, repair box; 210, accommodating chamber; 300, spray device; 410, rotating shaft; 420, stirring element; 430, paddle; 500, diverter; 510, drainage hole; 610, transmission shaft; 620, first motor; 700, mounting bracket; 810, locking socket; 820, locking pin; 830, second drive assembly; 910, clutch block; 920, first drive assembly; 921, screw; 922, second motor; 101, induction plate; 102, sensor. DETAILED DESCRIPTION

[0041] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0045] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0046] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] like Figure 1-10 As shown, the present invention provides a soil leaching and remediation system, including a frame 100, on which a remediation box 200 is provided. The remediation box 200 has a receiving chamber 210 for accommodating soil and remediation liquid. A spraying device 300 is provided above the remediation box 200, and the spraying device 300 is used to spray remediation liquid into the remediation box 200. In the working state, a preset amount of soil to be remediated is transported into the remediation box 200, and the remediation liquid is sprayed into the remediation box 200 through the spraying device 300. Under the action of the remediation liquid, the purpose of remediating the soil in the remediation box 200 is achieved. These are all existing technologies and will not be described in detail here.

[0048] like Figure 1 、 2 As shown in Figures 3, 4, and 5, in this embodiment, the soil leaching and remediation system also includes a mixing device and a driving device.

[0049] The mixing device is disposed within the repair box 200 and is rotationally connected to the repair box 200. A driving device is in transmission connection with the mixing device. In operation, the driving device rotates the mixing device to circulate the soil, or a mixture of soil and repair fluid, within the repair box 200, thereby ensuring full contact between the repair fluid and the soil, thereby enhancing the repair effect.

[0050] Specifically, when a filter plate is provided at the bottom of the accommodating chamber 210, the remediation fluid sprayed from the spray device 300, after contacting the soil, flows out through the filter plate, thereby achieving the purpose of remediating the soil. During this process, the driving device drives the mixing device to rotate within the remediation box 200, thereby causing the soil to circulate within the remediation box 200, ensuring that all soil in the remediation box 200 is fully contacted with the remediation fluid, thereby achieving the purpose of improving the remediation effect and maintaining basically consistent remediation of all soils.

[0051] When the bottom of the holding chamber 210 is sealed, the spraying device 300 sprays a preset amount of remediation fluid into the holding chamber. Simultaneously, the driving device drives the mixing device to rotate within the remediation chamber 200, thereby causing the soil and remediation fluid to circulate within the chamber 200, ensuring full contact and interaction between the soil and remediation fluid within the chamber 200, thereby achieving the goal of improving the remediation effect and maintaining essentially uniform remediation of all soils.

[0052] like Figure 1 、 2As shown in Figures 3 and 4, in one embodiment, the mixing device includes a rotating shaft 410 and a stirring element 420 disposed on the rotating shaft 410. The rotating shaft 410 is rotatably connected to the repair box 200. A driving device is in driving connection with the rotating shaft 410. In operation, the driving device drives the rotating shaft 410 to rotate, thereby driving the stirring element 420 to rotate, thereby achieving the purpose of circulating the soil or the mixture of soil and repair fluid in the repair box 200 within the repair box 200.

[0053] like Figure 4 、 5 As shown, the stirring element 420 can be a stirring rod or a stirring paddle.

[0054] Specifically, in one embodiment, the mixing device includes a rotating shaft 410 and a paddle 430 disposed on the rotating shaft 410. The rotating shaft 410 is rotatably connected to the repair box 200. A drive device is in transmission connection with the rotating shaft 410. In operation, the drive device rotates the rotating shaft 410, which in turn rotates the paddle 430, thereby generating a pressure differential within the repair box 200, thereby causing the mixture of the repair fluid and soil within the repair box 200 to circulate within the repair box 200.

[0055] like Figure 4 、 5 As shown, in this embodiment, the soil leaching and remediation system also includes a drain 500. The drain 500 is hollow and open at both ends. A number of drainage holes 510 are provided on the side wall of the drain 500. The drain 500 is arranged in the remediation box 200 and is mounted outside the mixing device. In the working state, the driving device drives the mixing device to rotate in the remediation box 200 to form a pressure difference, so that the soil and the remediation fluid circulate inside and outside the drain 500. During the process of the soil and the remediation fluid circulating inside and outside the drain 500, the soil will not be deposited in the remediation box 200. At the same time, all the soil can fully contact with the remediation fluid, thereby further achieving the purpose of improving the remediation effect.

[0056] Specifically, if Figure 4 、 5 As shown, the drain 500 is fixedly connected to the inner wall of the repair box 200 via a bracket. The bracket includes an inner ring, an outer ring, and multiple connecting rods connected between the inner and outer rings. The inner ring is sleeved on the drain 500. The outer ring is fixedly connected to the inner wall of the repair box 200.

[0057] like Figure 1 、 2 As shown in Figures 3, 4, and 5, in this embodiment, the driving device includes a transmission shaft 610 and a first motor 620.

[0058] The transmission shaft 610 is rotatably connected to the frame 100, and the power output end of the transmission shaft 610 is in transmission connection with the mixing device (i.e., the rotating shaft 410). The first motor 620 is fixedly connected to the frame 100, and the power output shaft of the first motor 620 is in transmission connection with the mixing device.

[0059] like Figure 2 、 3 5 , specifically, in this embodiment, the axis of the transmission shaft 610 extends in the transverse direction, while the axis of the rotating shaft 410 extends in the longitudinal direction. A first bevel gear is sleeved on the rotating shaft 410, and a second bevel gear is sleeved on the first end of the transmission shaft 610, with the first bevel gear meshing with the second bevel gear.

[0060] A third bevel gear is sleeved on the second end of the transmission shaft 610 , and a fourth bevel gear is sleeved on the power output shaft of the first motor 620 . The third bevel gear is meshed with the fourth bevel gear.

[0061] When in use, the first motor 620 drives the transmission shaft 610 to rotate, thereby driving the mixing device to rotate.

[0062] like Figure 1 、 2 As shown in Figures 3, 4, and 5, in this embodiment, the soil washing and remediation system further includes a mounting frame 700, a locking device, and a clutch device.

[0063] The mounting frame 700 is rotatably connected to the frame 100. The mounting frame 700 is sleeved on the transmission shaft 610 and rotatably connected to the transmission shaft 610. The mounting frame 700 has a first position and a second position. The repair box 200 is mounted on the mounting frame 700 and can move with the mounting frame 700. The mounting frame 700 is placed in the first position so that the opening of the repair box 200 faces upward, and the mounting frame 700 is placed in the second position so that the opening of the repair box 200 faces downward, thereby achieving the purpose of pouring out the mixture of soil and repair liquid in the repair box 200. It should be noted that the opening of the repair box 200 facing downward mentioned here can be either inverted so that the opening of the repair box 200 faces downward, or tilted so that the opening of the repair box 200 faces downward.

[0064] The locking device is set on the frame 100 and the mounting frame 700. In the working state, the locking device is placed in the locked state so that the mounting frame 700 cannot rotate. In the non-working state, the unlocking component is placed in the unlocked state so that the mounting frame 700 can rotate back and forth between the first position and the second position.

[0065] like Figure 10 As shown, in this embodiment, the locking device includes a locking socket 810 , a locking pin 820 and a second drive assembly 830 .

[0066] The locking socket 810 is formed on the mounting bracket 700. The locking latch 820 is disposed on the frame 100 and is slidably connected to the frame 100. The locking latch 820 has a fifth position and a sixth position. When the locking latch 820 is in the fifth position, the locking latch 820 is located outside the locking socket 810, thereby placing the locking device in an unlocked state. When the locking latch 820 is in the sixth position, the locking latch 820 is inserted into the locking socket 810, thereby placing the locking device in a locked state.

[0067] The second drive assembly 830 is fixedly mounted on the frame 100 and is in driving connection with the locking latch 820. In operation, the second drive assembly 830 drives the locking latch 820 to the fifth position, thereby placing the locking device in the unlocked state. The second drive assembly 830 drives the locking latch 820 to the sixth position, thereby placing the locking device in the locked state.

[0068] Specifically, in one embodiment, the second drive assembly 830 includes an automatic telescopic device, such as an electric push rod, a pneumatic cylinder, or a hydraulic cylinder. The automatic telescopic device is fixedly mounted on the frame 100, and a power output shaft locking pin 820 of the automatic telescopic device is fixedly connected.

[0069] The clutch device is arranged on the mounting frame 700 and the transmission shaft 610. In the working state, the clutch device is placed in the engaged state (that is, the transmission shaft 610 can transmit power to the mounting frame 700) so that the first motor 620 can drive the mounting frame 700 to rotate. In the non-working state, the clutch device is placed in the disengaged state (that is, the transmission shaft 610 cannot transmit power to the mounting frame 700) so that the first motor 620 cannot drive the mounting frame 700 to rotate.

[0070] When in use, the clutch device is placed in an engaged state, the first motor 620 drives the transmission shaft 610 to rotate, and the rotating shaft drives the mounting bracket 700 to rotate, thereby achieving the purpose of driving the mounting bracket 700 to reciprocate between the first position and the second position.

[0071] like Figure 6 、 7 As shown in Figures 8 and 9 , in this embodiment, the clutch device includes a clutch block 910 and a first drive assembly 920 .

[0072] Among them, there are two clutch blocks 910, which are arranged opposite to each other and slidably connected to the mounting frame 700, and grooves adapted to the transmission shaft 610 are opened on the opposite sides of the two clutch blocks 910. The clutch blocks 910 have a third position and a fourth position.

[0073] A first drive assembly 920 is disposed on the mounting frame 700 and is in transmission connection with the clutch block 910. The first drive assembly 920 is configured to drive the clutch block 910 to perform reciprocating linear motion between a third position and a fourth position. In an operating state, the first drive assembly 920 positions the clutch block 910 in the fourth position, causing the sidewalls of the groove to contact the sidewalls of the transmission shaft 610, thereby enabling the transmission shaft 610 to transmit power to the mounting frame 700. In a non-operating state, the first drive assembly 920 positions the clutch block 910 in the third position, causing the sidewalls of the groove to separate from the sidewalls of the transmission shaft 610, thereby preventing the transmission shaft 610 from transmitting power to the mounting frame 700.

[0074] During use, the first drive assembly 920 drives the clutch block 910 to the fourth position, causing the two clutch blocks 910 to approach each other, thereby causing the side walls of the groove to contact the side walls of the transmission shaft 610. At this time, the first motor 620 drives the transmission shaft 610 to rotate, and the transmission shaft 610 drives the mounting bracket 700 to rotate through the clutch block 910, thereby driving the mounting bracket 700 to rotate back and forth between the first position and the second position.

[0075] The first drive assembly 920 drives the clutch block 910 to the third position, thereby moving the two clutch blocks 910 away from each other, thereby separating the sidewalls of the groove from the sidewalls of the transmission shaft 610. At this time, the first motor 620 drives the transmission shaft 610 to rotate, and the rotating shaft drives the mixing device to rotate.

[0076] like Figure 6 、 7 As shown, in one embodiment, the first drive assembly 920 includes an automatic telescopic device, such as an electric push rod, a pneumatic cylinder, or a hydraulic cylinder. The automatic telescopic device is fixedly mounted on the frame 100, and the power output shaft of the automatic telescopic device is fixedly connected to the clutch block 910.

[0077] like Figure 8 、 9 As shown, in one embodiment, the first drive assembly 920 includes a leadscrew, a nut, and a second motor.

[0078] The lead screw is rotatably connected to the mounting bracket 700. The lead screw has two externally threaded segments with the same pitch but opposite helical directions. Two nuts are mounted on the lead screw. These two nuts are threadedly connected to the lead screw via the two externally threaded segments, allowing the two nuts to move closer or further apart when the lead screw rotates. The two nuts are fixedly connected to two clutch blocks 910, respectively. A second motor is in transmission connection with the lead screw.

[0079] During use, the second motor drives the lead screw to rotate in the forward direction, so that the two nuts approach each other, and then the side wall of the groove contacts the side wall of the transmission shaft 610, so that the clutch device is in an engaged state.

[0080] The second motor drives the lead screw to rotate in the opposite direction, so that the two nuts move away from each other, and the side wall of the groove is separated from the side wall of the transmission shaft 610, so that the clutch device is in a disengaged state.

[0081] like Figure 6 、 7 As shown in Figures 8 and 9, preferably, the side walls of the groove and the side walls of the transmission shaft 610 are provided with mutually cooperating limiting teeth to achieve the purpose of improving the reliability of power transmission between the transmission shaft 610 and the clutch block 910.

[0082] like Figure 11-12 As shown, in this embodiment, the soil leaching and remediation system also includes a detection component, which is arranged on the frame 100 and / or the mounting frame 700. The detection component is used to detect the position of the mounting frame 700. In the working state, when the detection component detects that the mounting frame 700 moves from the second position to the first position, the first motor 620 stops and the clutch component is converted from the engaged state to the disengaged state. When the detection component detects that the mounting frame 700 moves to the second position, the first motor 620 stops.

[0083] like Figure 11 Specifically, in one embodiment, the detection assembly includes a sensing sheet 101 and a sensor 102. One of the sensing sheet 101 and the sensor 102 is mounted on the mounting bracket 700, while the other is mounted on the frame 100. Two sensing sheets 101 are provided. When one sensing sheet 101 corresponds to the sensor 102, the mounting bracket 700 is in the first position. When the other sensing sheet 101 corresponds to the sensor 102, the mounting bracket 700 is in the second position.

[0084] like Figure 12 As shown, the detection assembly includes a sensing sheet 101 and a sensor 102. One of the sensing sheet 101 and the sensor 102 is mounted on the mounting bracket 700, while the other is mounted on the frame 100. Two sensors 102 are provided. When one sensor 102 aligns with the sensing sheet 101, the mounting bracket 700 is in the first position. When the other sensor 102 aligns with the sensing sheet 101, the mounting bracket 700 is in the second position.

[0085] Of course, in other embodiments of the soil leaching and remediation system provided by the present invention, a filtering device may also be included to separate the remediation liquid and the soil.

[0086] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A soil leaching and remediation system, comprising a frame (100), a remediation box (200) being provided on the frame (100), the remediation box (200) having a receiving chamber (210) for receiving soil and remediation liquid, a spraying device (300) being provided above the remediation box (200), the spraying device (300) being used for spraying remediation liquid into the remediation box (200), and characterized in that: Also includes: a mixing device, which is disposed in the repair box (200) and is rotatably connected to the repair box (200); and A driving device, which is arranged on the frame (100) and is in driving connection with the mixing device; Wherein, in the working state, the driving device drives the mixing device to rotate, so that the soil or the mixture of soil and repair liquid flows in the repair box (200); The driving device comprises: a transmission shaft (610), which is rotationally connected to the frame (100), and whose power output end is transmission-connected to the mixing device; and a first motor (620) fixedly connected to the frame (100), wherein a power output shaft thereof is in driving connection with the mixing device; Also includes: a mounting frame (700) rotatably connected to the frame (100), sleeved on the transmission shaft (610) and rotatably connected to the transmission shaft (610), having a first position and a second position; the repair box (200) is arranged on the mounting frame (700) and can move along with the mounting frame (700); wherein, when the mounting frame (700) is placed in the first position, the opening of the repair box (200) faces upward, and when the mounting frame (700) is placed in the second position, the opening of the repair box (200) faces downward; a locking device, which is provided on the frame (100) and the mounting frame (700); in a working state, the locking device is placed in a locked state so that the mounting frame (700) cannot rotate; in a non-working state, the locking device is placed in an unlocked state so that the mounting frame (700) can rotate back and forth between a first position and a second position; and A clutch device is provided on the mounting frame (700) and the transmission shaft (610); in a working state, the clutch device transmission-connects the mounting frame (700) and the transmission shaft (610) so that the first motor (620) can drive the mounting frame (700) to rotate; in a non-working state, the clutch device power-decouples the mounting frame (700) from the transmission shaft (610) so that the first motor (620) cannot drive the mounting frame (700) to rotate.

2. The soil leaching and remediation system according to claim 1, characterized in that: It also includes a flow diverter (500), the flow diverter (500) is hollow and open at both ends, a plurality of flow diversion holes (510) are provided on the side wall of the flow diverter (500), and the flow diverter (500) is arranged in the repair box (200) and is sleeved outside the mixing device; Wherein, in the working state, the driving device drives the mixing device to rotate in the repair box (200) to form a pressure difference, so that the soil and the repair fluid circulate inside and outside the diverter (500).

3. The soil leaching and remediation system according to claim 1 or 2, characterized in that: The clutch device comprises: Two clutch blocks (910) are provided, the two clutch blocks (910) are arranged opposite to each other and are slidably connected to the mounting frame (700), and grooves adapted to the transmission shaft (610) are provided on opposite sides of the two clutch blocks (910), and the clutch blocks (910) have a third position and a fourth position; and A first driving assembly (920) is provided on the mounting frame (700) and is in transmission connection with the clutch block (910). In a working state, the first driving assembly (920) places the clutch block (910) in the fourth position so that the side wall of the groove contacts the side wall of the transmission shaft (610), thereby enabling the transmission shaft (610) to transmit power to the mounting frame (700). In a non-working state, the first driving assembly (920) places the clutch block (910) in the third position so that the side wall of the groove is separated from the side wall of the transmission shaft (610), thereby preventing the transmission shaft (610) from transmitting power to the mounting frame (700).

4. The soil leaching and remediation system according to claim 3, characterized in that: The side wall of the groove and the side wall of the transmission shaft (610) are provided with mutually matching limiting teeth.

5. The soil leaching and remediation system according to any one of claims 1, 2 or 4, characterized in that: The invention also includes a detection component, which is arranged on the frame (100) and / or the mounting frame (700). The detection component is used to detect the position of the mounting frame (700). In the working state, when the detection component detects that the mounting frame (700) moves from the second position to the first position, the first motor (620) stops, and the clutch device is converted from the engaged state to the disengaged state. When the detection component detects that the mounting frame (700) moves to the second position, the first motor (620) stops.

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