Polluted underground water ex-situ treatment device and treatment method

Abstract

The invention belongs to the technical field of environmental protection, and discloses a polluted underground water ex-situ treatment device which comprises a protective shell, a power motor and a supporting frame are fixedly connected to inner cavities of the top and the middle of the protective shell correspondingly, and the output shaft end of the power motor is fixedly connected with a spline shaft; the outer surface of the spline shaft is sleeved with turbine blades. The invention further discloses a treatment method of the polluted underground water ex-situ treatment device. Through cooperation of an arc-shaped groove, a columnar protruding block, a first scraping plate, a second scraping plate and other structures, the device has the effects of preventing the periphery of the water pump from being blocked and keeping the normal work of the water pump, a fixing ring is driven to rotate through rotation of turbine fan blades, and when the arc-shaped groove rotates to the columnar protruding block, the water pump is prevented from being blocked. At the moment, under the action of the tension of a second tension spring, the impurities on the side wall of the water inlet in the lower middle portion of the protective shell are scraped away in a repeated rotating mode finally, and then it is guaranteed that the device cannot be blocked in the working process.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection, and in particular relates to an ex-situ treatment device and a treatment method for contaminated groundwater. Background Art

[0002] Current groundwater pollution remediation technologies can be divided into ex situ remediation and in situ remediation according to different technical means. Ex situ remediation is a technology that collects contaminated groundwater through pipes and transfers it to the ground through pump extraction, and then adopts corresponding methods to treat it according to the type and characteristics of the pollutants.

[0003] At present, when people extract groundwater from underground, they often need to use submersible pumps, and submersible pumps are often placed in water for use. The groundwater is pumped to the ground through the operation of the submersible pump, and then the contaminated groundwater is filtered using a purification device to treat the contaminated groundwater. However, the underground situation is complicated, and blockages often occur when the submersible pump is working. Therefore, people need to lift the submersible pump to the ground for cleaning and then put it underground to ensure the normal operation of the submersible pump. Therefore, a contaminated groundwater ex situ treatment device and treatment method are proposed to solve the problems raised in the background. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an ex-situ treatment device and method for contaminated groundwater, which solves the problem of blockage when a water pump runs for a long time in a groundwater layer.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a contaminated groundwater ex situ treatment device, comprising a protective shell, the inner cavities at the top and middle of the protective shell are respectively fixedly connected to a power motor and a support frame, the output shaft end of the power motor is fixedly connected to a spline shaft, the outer surface of the spline shaft is sleeved with a turbine blade, the bottom of the outer surface of the turbine blade is sleeved with a first tension spring, the bottom of the outer surface of the turbine blade is fixedly connected with a fixing ring, the outer surface of the fixing ring is provided with arc grooves at equal angles, and the inner cavity in the middle of the protective shell is movably connected with a sealing A sealing ring, the top and bottom of the inner wall of the sealing ring are fixedly connected with a spring, the inner cavity of the sealing ring is provided with connecting protrusions at equal angles, the outer surface of the protective shell is provided with a sliding groove at an annular angle, the connecting protrusion is fixedly connected with a connecting rod on the side away from the turbine blade, the inner cavity of the connecting protrusion is movably clamped with a columnar protrusion, the outer surface of the columnar protrusion is sleeved with a second tension spring, one end of the bottom of the connecting rod is fixedly connected with a first scraper, the inner cavity of the first scraper is fixedly connected with a second scraper, and the bottom of the turbine blade is fixedly connected with a second cleaning mechanism.

[0006] Preferably, the second cleaning mechanism includes an arc-shaped protrusion, the top of the arc-shaped protrusion is fixedly connected to the bottom of the turbine blade, the bottom of the inner cavity of the protective shell is fixedly connected to a limiting disk block, the inner cavity of the limiting disk block is movably connected to a limiting vertical rod and a connecting vertical rod at an equal angle in a ring shape, the outer surface of the limiting vertical rod is sleeved with a third tension spring, and the bottom of the third tension spring is fixedly connected to a nail plate.

[0007] Preferably, the turbine blade is movably connected in the inner cavity of the protective shell, the bottom of the outer surface of the turbine blade is movably connected to the inner cavity of the support frame, and the top and bottom of the first tension spring are movably connected to the inner cavity of the support frame and the turbine blade respectively.

[0008] Preferably, the fixing ring is movably connected to the inner cavity of the protective shell, the upper surface and the lower surface of the fixing ring away from the second tension spring are both provided with rounded corners, the fixing ring and the arc groove are both extruded in cooperation with the columnar protrusion, and the outer surface of the connecting protrusion cooperates with the inner cavity of the slide groove.

[0009] Preferably, one end of the mainspring away from the sealing ring is fixedly connected to the protective housing, and two ends of the second tension spring are respectively fixedly connected to the columnar protrusion and the connecting protrusion.

[0010] Preferably, the middle and upper part of the outer surface of the first scraper is movably engaged with the inner cavity of the protective shell, the side of the middle and lower part of the first scraper close to the protective shell is in contact with the side of the protective shell, the second scraper is at an angle of forty-five degrees to the first scraper, and the side of the second scraper close to the protective shell is in contact with the protective shell.

[0011] Preferably, one end of the bottom of the arc-shaped protrusion is in contact and pressed with the top of the connecting vertical rod, and the highest point of the inclined surface on one side of the bottom of the arc-shaped protrusion is located above the connecting vertical rod.

[0012] Preferably, the limiting vertical rod is located on the inner side of the connecting vertical rod, the bottoms of the limiting vertical rod and the connecting vertical rod are fixedly connected to the nail plate, the third tension spring is sleeved on the outer surface of the limiting vertical rod and the top of the third tension spring is fixedly connected to the limiting disk block.

[0013] Preferably, the bottom of the nail plate is provided with equidistant protrusions, the bottom of the protective shell is evenly provided with circular holes, and the protrusions cooperate with the circular holes at the bottom of the protective shell.

[0014] A method for treating contaminated groundwater using an ex situ treatment device, the use steps of which include:

[0015] S1. First, the operator installs the pipeline on the top of the protective shell through bolts, and then puts the device into the groundwater. At this time, running the power motor will cause the spline shaft to rotate and drive the turbine blades to rotate, so that the water source enters the interior of the protective shell from the bottom and side walls of the protective shell, and then is transported to the top of the ground through the top of the protective shell and the pipeline. At this time, since the water source is transported upward, the upward water source will cause the turbine blades to move downward, so that the first tension spring is stretched, and the fixing ring will move downward and squeeze the columnar protrusion to shrink into the inside of the connecting protrusion. At this time, as the turbine blades rotate, the fixing ring is driven to rotate. When the arc groove rotates to the columnar protrusion, under the action of the tension of the second tension spring, The cylindrical protrusion will be reset and the connecting protrusion and the sealing ring will be driven to rotate along the slide groove under the pressure of the inner wall of the arc groove, so that the connecting rod drives the first scraper and the second scraper to rotate, and the spring is compressed at the same time. When the connecting protrusion rotates to the other side of the slide groove, the connecting protrusion is fixed at this time, and the arc surface inside the arc groove will squeeze the cylindrical protrusion, and the cylindrical protrusion will be squeezed to the inner wall of the connecting protrusion again. At this time, the fixing ring contacts the cylindrical protrusion, and under the action of the spring elastic force, the connecting protrusion, the sealing ring, the connecting rod, the first scraper and the second scraper will rotate to reset, and finally the impurities on the side wall of the water inlet in the middle and lower part of the protective shell are repeatedly rotated and scraped off, thereby ensuring that the device will not be blocked during operation;

[0016] S2. When the turbine blades descend, the arc-shaped protrusion will also descend, so that one side of the bottom of the arc-shaped protrusion contacts the top of the connecting vertical rod. At the same time, when the turbine blades rotate, the arc-shaped protrusion will also be driven to rotate. At this time, as the arc-shaped protrusion rotates and is limited by the limiting vertical rod, each connecting vertical rod in contact with the arc-shaped protrusion will be squeezed to drive the nail plate to move downward, so that the protrusion at the bottom of the nail plate cleans the impurities attached to the circular hole at the bottom of the protective shell to complete the operation.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention cooperates with the arc groove, the columnar protrusion, the first scraper and the second scraper to prevent the water pump from being blocked and maintain its normal operation. The rotation of the turbine blade drives the fixed ring to rotate, and the arc groove rotates to the columnar protrusion. At this time, under the action of the tension of the second tension spring, the columnar protrusion will be reset and the connecting protrusion and the sealing ring will be driven to rotate along the slide groove under the extrusion of the inner wall of the arc groove, so that the connecting rod drives the first scraper and the second scraper to rotate, and the spring is compressed at the same time. When the connecting protrusion rotates to the other side of the slide groove, the connecting protrusion is fixed at this time, and the arc surface inside the arc groove will squeeze the columnar protrusion, and the columnar protrusion will be squeezed to the inner wall of the connecting protrusion again. At this time, the fixed ring contacts the columnar protrusion, and under the action of the spring elastic force, the connecting protrusion, the sealing ring, the connecting rod, the first scraper and the second scraper will rotate to reset, and finally the impurities on the side wall of the water inlet in the lower part of the protective shell are repeatedly scraped off, so as to ensure that the device will not be blocked during operation.

[0019] The present invention cooperates with the arc-shaped protrusion, the limiting disk block, the connecting vertical rod and the limiting vertical rod to prevent the bottom of the pump body from being blocked. When the turbine blade descends, the arc-shaped protrusion will also descend, so that one side of the bottom of the arc-shaped protrusion contacts the top of the connecting vertical rod. At the same time, when the turbine blade rotates, the arc-shaped protrusion will also be driven to rotate. At this time, as the arc-shaped protrusion rotates and is limited by the limiting vertical rod, each connecting vertical rod in contact with the arc-shaped protrusion will be squeezed to drive the nail plate to move downward, so that the protrusion at the bottom of the nail plate cleans the impurities attached to the circular hole at the bottom of the protective shell.

[0020] The present invention prevents the first scraper and the second scraper from vibrating when the device is running above the water surface, thereby preventing a maintenance hazard from occurring. When the device is on the water surface, due to the elastic force of the first tension spring, the gas delivered when the turbine blades rotate will not cause the turbine blades to move downward and squeeze the columnar protrusions, thereby ensuring that the fixing ring is always above the columnar protrusions, thereby preventing the turbine blades from driving the fixing ring and causing the first scraper and the second scraper to rotate, thereby preventing people from being dangerously affected by the reciprocating rotation of the second scraper when touching the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the whole cross-sectional structure of the present invention;

[0023] Figure 3 for Figure 2The enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0025] Figure 5 This is an appearance diagram of the internal structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the top cross-sectional structure of the sealing ring of the present invention and its enlarged diagram;

[0027] Figure 7 It is an exploded view of the spline shaft of the present invention;

[0028] Figure 8 An exploded view of the sealing ring of the present invention;

[0029] Fig. 9 This is an appearance diagram of the second cleaning mechanism of the present invention;

[0030] Fig.10 This is an exploded view of the limiting disk block of the present invention.

[0031] In the figure: 1. protective shell; 2. power motor; 3. spline shaft; 4. turbine blade; 5. first tension spring; 6. fixing ring; 7. support frame; 8. sealing ring; 9. spring; 10. connecting protrusion; 11. slide groove; 12. connecting rod; 13. columnar protrusion; 14. second tension spring; 15. first scraper; 16. second scraper; 17. arc groove; 18. second cleaning mechanism; 181. arc protrusion; 182. limiting disk block; 183. limiting vertical rod; 184. connecting vertical rod; 185. nail plate; 186. third tension spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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.

[0033] like Figures 1 to 10As shown, the present invention provides a contaminated groundwater ex situ treatment device and treatment method, including a protective shell 1, the inner cavities at the top and middle of the protective shell 1 are respectively fixedly connected to a power motor 2 and a support frame 7, the output shaft end of the power motor 2 is fixedly connected to a spline shaft 3, the outer surface of the spline shaft 3 is sleeved with a turbine blade 4, the bottom of the outer surface of the turbine blade 4 is sleeved with a first tension spring 5, the bottom of the outer surface of the turbine blade 4 is fixedly connected to a fixing ring 6, the outer surface of the fixing ring 6 is annularly provided with arc grooves 17 at equal angles, and the inner cavity in the middle of the protective shell 1 is movably connected with a sealing The sealing ring 8 has a spring 9 fixedly connected to the top and bottom of the inner wall of the sealing ring 8. The inner cavity of the sealing ring 8 is provided with a connecting protrusion 10 at an equal angle. The outer surface of the protective shell 1 is provided with a sliding groove 11 at an annular angle. The connecting protrusion 10 is fixedly connected to a connecting rod 12 on the side away from the turbine blade 4. The inner cavity of the connecting protrusion 10 is movably connected with a columnar protrusion 13. The outer surface of the columnar protrusion 13 is sleeved with a second tension spring 14. One end of the bottom of the connecting rod 12 is fixedly connected to a first scraper 15. The inner cavity of the first scraper 15 is fixedly connected to a second scraper 16. The bottom of the turbine blade 4 is fixedly connected with a second cleaning mechanism 18; the rotation of the turbine blade 4 drives the fixing ring 6 to rotate, and when the arc groove 17 rotates to the columnar protrusion 13, the columnar protrusion 13 will be reset under the action of the tension of the second tension spring 14, and the connecting protrusion 10 and the sealing ring 8 will be driven to rotate along the slide groove 11 under the pressure of the inner wall of the arc groove 17, so that the connecting rod 12 drives the first scraper 15 and the second scraper 16 to rotate, and at the same time the clockwork 9 is compressed, when the connecting protrusion 10 rotates to the inside of the slide groove 11 On the other side, the connecting protrusion 10 is fixed, and the arc surface inside the arc groove 17 will squeeze the columnar protrusion 13, and make the columnar protrusion 13 squeezed to the inner wall of the connecting protrusion 10 again. At this time, the fixing ring 6 is in contact with the columnar protrusion 13, and under the action of the elastic force of the spring 9, the connecting protrusion 10, the sealing ring 8, the connecting rod 12, the first scraper 15 and the second scraper 16 will rotate to reset, and finally the impurities on the side wall of the lower water inlet of the protective shell 1 are repeatedly rotated and scraped away, thereby ensuring that the device will not be blocked during operation.

[0034] like Figure 2 , Figure 4 , Fig. 9 and Fig.10As shown, the second cleaning mechanism 18 includes an arc-shaped protrusion 181, the top of the arc-shaped protrusion 181 is fixedly connected to the bottom of the turbine blade 4, and the bottom of the inner cavity of the protective shell 1 is fixedly connected to a limiting disk block 182, and the inner cavity of the limiting disk block 182 is respectively connected to a limiting vertical rod 183 and a connecting vertical rod 184 at an equal angle in an annular manner. The outer surface of the limiting vertical rod 183 is sleeved with a third tension spring 186, and the bottom of the third tension spring 186 is fixedly connected to a nail plate 185; when the turbine blade 4 descends, the arc-shaped protrusion 181 will also be The protrusion 181 descends, so that one side of the bottom of the arc-shaped protrusion 181 contacts the top of the connecting vertical rod 184. At the same time, when the turbine fan blade 4 rotates, the arc-shaped protrusion 181 will also be driven to rotate. At this time, as the arc-shaped protrusion 181 rotates and is limited by the limiting vertical rod 183, each connecting vertical rod 184 in contact with the arc-shaped protrusion 181 will be squeezed to drive the nail plate 185 to move downward, so that the protrusion at the bottom of the nail plate 185 cleans the impurities attached to the circular hole at the bottom of the protective shell 1.

[0035] like Figures 1 to 8 As shown, the turbine blade 4 is movably connected in the inner cavity of the protective shell 1, the bottom of the outer surface of the turbine blade 4 is movably connected to the inner cavity of the support frame 7, the top and bottom of the first tension spring 5 are movably connected to the inner cavity of the support frame 7 and the turbine blade 4 respectively, the fixing ring 6 is movably connected to the inner cavity of the protective shell 1, and the upper surface and lower surface of the fixing ring 6 away from the second tension spring 14 are both provided with rounded corners, the fixing ring 6 and the arc groove 17 are both squeezed with the columnar protrusion 13, and the outer surface of the connecting protrusion 10 is matched with the inner cavity of the slide groove 11; due to the elastic force of the first tension spring 5, the gas transported when the turbine blade 4 rotates at this time will not cause the turbine blade 4 to move downward and squeeze the columnar protrusion 13, thereby ensuring that the fixing ring 6 is always above the columnar protrusion 13, thereby preventing the turbine blade 4 from driving the fixing ring 6 and causing the first scraper 15 and the second scraper 16 to rotate, thereby preventing people from being reciprocated by the second scraper 16 when contacting the protective shell 1. Rotation and causing dangerous situations.

[0036] like Figures 1 to 8 As shown, one end of the mainspring 9 away from the sealing ring 8 is fixedly connected to the protective shell 1, the two ends of the second tension spring 14 are respectively fixedly connected to the columnar protrusion 13 and the connecting protrusion 10, the middle and upper part of the outer surface of the first scraper 15 is movably engaged with the inner cavity of the protective shell 1, the side of the middle and lower part of the first scraper 15 close to the protective shell 1 is in contact with the side of the protective shell 1, the second scraper 16 is at a forty-five degree angle to the first scraper 15, and the side of the second scraper 16 close to the protective shell 1 is in contact with the protective shell 1; through the cooperation between the first scraper 15 and the second scraper 16, it is ensured that the first scraper 15 and the second scraper 16 have the ability to cover and clean the bottom slope of the protective shell 1, thereby preventing the occurrence of cleaning dead corners.

[0037] like Figure 2 , Figure 4 , Fig. 9 and Fig.10 As shown, one end of the bottom of the arc-shaped protrusion 181 contacts and squeezes the top of the connecting vertical rod 184, the highest point of the inclined surface on one side of the bottom of the arc-shaped protrusion 181 is located above the connecting vertical rod 184, the limiting vertical rod 183 is located on the inner side of the connecting vertical rod 184, the bottoms of the limiting vertical rod 183 and the connecting vertical rod 184 are fixedly connected to the nail plate 185, the third tension spring 186 is sleeved on the outer surface of the limiting vertical rod 183 and the top of the third tension spring 186 is fixedly connected to the limiting disk block 182, and the bottom of the nail plate 185 is provided with equidistant protrusions. There are circular holes evenly arranged on the bottom, and the protrusions cooperate with the circular holes at the bottom of the protective shell 1; through the action of the elastic force of the first tension spring 5, the gas delivered when the turbine blades 4 rotate will not cause the turbine blades 4 to move downward and squeeze the columnar protrusions 13, thereby ensuring that the fixing ring 6 is always above the columnar protrusions 13, thereby preventing the turbine blades 4 from driving the fixing ring 6 and causing the first scraper 15 and the second scraper 16 to rotate, thereby preventing people from being dangerous due to the reciprocating rotation of the second scraper 16 when contacting the protective shell 1.

[0038] The working principle and use process of the present invention:

[0039] First, the operator installs the pipe on the top of the protective shell 1 through bolts, and then sends the device into the groundwater. At this time, running the power motor 2 will cause the spline shaft 3 to rotate and drive the turbine blades 4 to rotate, so that the water source enters the interior of the protective shell 1 from the bottom and side walls of the protective shell 1, and then is transported to the top of the ground through the top of the protective shell 1 and the pipeline. At this time, since the water source is transported upward, the upward water source will cause the turbine blades 4 to move downward, so that the first tension spring 5 is stretched, and the fixing ring 6 will move downward and squeeze the columnar protrusion 13 to shrink into the inside of the connecting protrusion 10. At this time, as the turbine blades 4 rotate, the fixing ring 6 is driven to rotate. When the arc groove 17 rotates to the columnar protrusion 13, the columnar protrusion 13 will be reset under the action of the tension of the second tension spring 14. The connecting protrusion 10 and the sealing ring 8 are driven to rotate along the slide groove 11 under the extrusion of the inner wall of the arc groove 17, so that the connecting rod 12 drives the first scraper 15 and the second scraper 16 to rotate, and the spring 9 is compressed at the same time. When the connecting protrusion 10 rotates to the other side of the slide groove 11, the connecting protrusion 10 is fixed at this time, and the arc surface inside the arc groove 17 will squeeze the columnar protrusion 13, and the columnar protrusion 13 is squeezed to the inner wall of the connecting protrusion 10 again. At this time, the fixing ring 6 contacts the columnar protrusion 13, and under the action of the elastic force of the spring 9, the connecting protrusion 10, the sealing ring 8, the connecting rod 12, the first scraper 15 and the second scraper 16 are rotated to reset, and finally the impurities on the side wall of the water inlet in the lower part of the protective housing 1 are repeatedly scraped off by rotation, so as to ensure that the device will not be blocked during operation;

[0040] At the same time, when the turbine blades 4 descend, the arc-shaped protrusion 181 will also descend, so that one side of the bottom of the arc-shaped protrusion 181 contacts the top of the connecting vertical rod 184. At the same time, when the turbine blades 4 rotate, the arc-shaped protrusion 181 will also be driven to rotate. At this time, with the rotation of the arc-shaped protrusion 181 and under the limitation of the limiting vertical rod 183, each connecting vertical rod 184 in contact with the arc-shaped protrusion 181 will be squeezed to drive the nail plate 185 to move downward, so that the protrusion at the bottom of the nail plate 185 cleans the impurities attached to the circular hole at the bottom of the protective shell 1 to complete the operation.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for ex situ treatment of contaminated groundwater, comprising a protective housing (1), characterized in that: The inner cavities at the top and middle of the protective shell (1) are respectively fixedly connected to a power motor (2) and a support frame (7); the output shaft end of the power motor (2) is fixedly connected to a spline shaft (3); the outer surface of the spline shaft (3) is sleeved with a turbine blade (4); the bottom of the outer surface of the turbine blade (4) is sleeved with a first tension spring (5); the bottom of the outer surface of the turbine blade (4) is fixedly connected to a fixing ring (6); the outer surface of the fixing ring (6) is provided with arc grooves (17) at equal angles in an annular manner; the inner cavity in the middle of the protective shell (1) is movably connected to a sealing ring (8); the top and bottom of the inner wall of the sealing ring (8) are fixedly connected to a clockwork spring (9); The inner cavity of the sealing ring (8) is provided with a connecting protrusion (10) at an annular equiangular shape, the outer surface of the protective shell (1) is provided with a sliding groove (11) at an annular angle, the connecting protrusion (10) is fixedly connected to a connecting rod (12) on the side away from the turbine blade (4), the inner cavity of the connecting protrusion (10) is movably engaged with a columnar protrusion (13), the outer surface of the columnar protrusion (13) is sleeved with a second tension spring (14), one end of the bottom of the connecting rod (12) is fixedly connected to a first scraper (15), the inner cavity of the first scraper (15) is fixedly connected to a second scraper (16), and the bottom of the turbine blade (4) is fixedly connected to a second cleaning mechanism (18).

2. The device for ex situ treatment of contaminated groundwater according to claim 1, characterized in that: The second cleaning mechanism (18) includes an arc-shaped protrusion (181), the top of the arc-shaped protrusion (181) is fixedly connected to the bottom of the turbine blade (4), the bottom of the inner cavity of the protective shell (1) is fixedly connected to a limiting disk block (182), the inner cavity of the limiting disk block (182) is respectively connected to a limiting vertical rod (183) and a connecting vertical rod (184) in an annular and equiangular manner, the outer surface of the limiting vertical rod (183) is sleeved with a third tension spring (186), and the bottom of the third tension spring (186) is fixedly connected to a nail plate (185).

3. The device for ex situ treatment of contaminated groundwater according to claim 1, characterized in that: The turbine blade (4) is movably connected in the inner cavity of the protective shell (1), the bottom of the outer surface of the turbine blade (4) is movably connected to the inner cavity of the support frame (7), and the top and bottom of the first tension spring (5) are movably connected to the inner cavity of the support frame (7) and the turbine blade (4), respectively.

4. The device for ex situ treatment of contaminated groundwater according to claim 1, characterized in that: The fixing ring (6) is movably connected to the inner cavity of the protective shell (1); the upper surface and the lower surface of the fixing ring (6) away from the second tension spring (14) are both provided with rounded corners; the fixing ring (6) and the arc groove (17) are both extruded in cooperation with the columnar protrusion (13); the outer surface of the connecting protrusion (10) is cooperated with the inner cavity of the slide groove (11).

5. The device for ex situ treatment of contaminated groundwater according to claim 1, characterized in that: One end of the mainspring (9) away from the sealing ring (8) is fixedly connected to the protective housing (1), and the two ends of the second tension spring (14) are respectively fixedly connected to the columnar protrusion (13) and the connecting protrusion (10).

6. The ex situ treatment device for contaminated groundwater according to claim 1, characterized in that: The middle and upper part of the outer surface of the first scraper (15) is movably engaged with the inner cavity of the protective shell (1), the middle and lower part of the first scraper (15) close to the protective shell (1) is in contact with the side of the protective shell (1), the second scraper (16) is at an angle of forty-five degrees to the first scraper (15), and the side of the second scraper (16) close to the protective shell (1) is in contact with the protective shell (1).

7. The ex situ treatment device for contaminated groundwater according to claim 2, characterized in that: One end of the bottom of the arc-shaped protrusion (181) contacts and presses against the top of the connecting vertical rod (184), and the highest point of the inclined surface on one side of the bottom of the arc-shaped protrusion (181) is located above the connecting vertical rod (184).

8. The ex situ treatment device for contaminated groundwater according to claim 2, characterized in that: The limiting vertical rod (183) is located on the inner side of the connecting vertical rod (184); the bottoms of the limiting vertical rod (183) and the connecting vertical rod (184) are fixedly connected to the nail plate (185); the third tension spring (186) is sleeved on the outer surface of the limiting vertical rod (183); and the top of the third tension spring (186) is fixedly connected to the limiting disk block (182).

9. The device for ex situ treatment of contaminated groundwater according to claim 2, characterized in that: The bottom of the nail plate (185) is provided with equidistant protrusions, the bottom of the protective shell (1) is evenly provided with circular holes, and the protrusions cooperate with the circular holes at the bottom of the protective shell (1).

10. A method for treating contaminated groundwater using an ex situ treatment device according to any one of claims 1 to 9, characterized in that: The steps for use include: S1. First, the operator installs the pipeline on the top of the protective shell (1) through bolts, and then puts the device into the groundwater. At this time, the operation of the power motor (2) will cause the spline shaft (3) to rotate and drive the turbine blades (4) to rotate, so that the water source enters the interior of the protective shell (1) from the bottom and side wall of the protective shell (1), and is then transported to the top of the ground through the top of the protective shell (1) and the pipeline. At this time, since the water source is transported upward, the upward water source will cause the turbine blades (4) to move downward, so that the first tension spring (5) is stretched, and the fixing ring (6) will move downward and squeeze the columnar protrusion (13) to shrink into the interior of the connecting protrusion (10). At this time, as the turbine blades (4) rotate, the fixing ring (6) is driven to rotate. When the arc groove (17) rotates to the columnar protrusion (13), under the action of the tension of the second tension spring (14), the columnar protrusion (13) will be reset and retracted in the arc groove. The inner wall (17) is squeezed to drive the connecting protrusion (10) and the sealing ring (8) to rotate along the slide groove (11), thereby causing the connecting rod (12) to drive the first scraper (15) and the second scraper (16) to rotate, and at the same time the spring (9) is compressed. When the connecting protrusion (10) rotates to the other side of the slide groove (11), the connecting protrusion (10) is fixed, and at the same time the arc surface inside the arc groove (17) squeezes the columnar protrusion (13), causing the columnar protrusion (13) to rotate. The protrusion (13) is squeezed to the inner wall of the connecting protrusion (10) again, and the fixing ring (6) is in contact with the columnar protrusion (13). At the same time, under the action of the elastic force of the spring (9), the connecting protrusion (10), the sealing ring (8), the connecting rod (12), the first scraper (15) and the second scraper (16) are rotated to reset, and finally the impurities on the side wall of the water inlet in the middle and lower part of the protective housing (1) are repeatedly scraped off, thereby ensuring that the device will not be blocked during operation; S2. When the turbine blade (4) descends, the arc-shaped protrusion (181) is also caused to descend, so that one side of the bottom of the arc-shaped protrusion (181) contacts the top of the connecting vertical rod (184). When the turbine blade (4) rotates, the arc-shaped protrusion (181) is also driven to rotate. At this time, as the arc-shaped protrusion (181) rotates and is limited by the limiting vertical rod (183), each connecting vertical rod (184) in contact with the arc-shaped protrusion (181) is squeezed to drive the nail plate (185) to move downward, so that the protrusion at the bottom of the nail plate (185) cleans the impurities attached to the circular hole at the bottom of the protective shell (1), and the operation is completed.

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