Underground water extraction and reinjection circular treatment device

Abstract

The invention discloses an underground water extraction and reinjection circular treatment device, and relates to the technical field of underground water treatment.The underground water extraction and reinjection circular treatment device comprises an equipment frame, a servo motor is fixedly installed above the equipment frame, and a transmission shaft is fixedly installed at the output end of the servo motor; a supporting plate is fixedly installed on the inner wall of the equipment frame, the end, away from the servo motor, of the transmission shaft rotationally penetrates through the upper wall and the lower wall of the supporting plate, a water outlet pipe fixedly penetrates through the surface of the equipment frame, and a water inlet pipe fixedly penetrates through the bottom of the equipment frame; the purification device comprises a separation frame, a fixing rod, a sleeve, a lifting frame, a purification frame, a filter plate and a fixing plate, the underground water extraction and reinjection circulation treatment device can effectively remove peculiar smell and colored pollution under the action of activated carbon, meanwhile, large-particle impurities are effectively removed, and the purification effect on underground water is improved.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater treatment, and in particular to a groundwater extraction, reinjection and circulation treatment device. Background Art

[0002] A groundwater extraction and reinjection circulation treatment device is a device used for groundwater resource management and recovery. Its main function is to reinject water into the groundwater layer through filtration and treatment.

[0003] The patent with the patent announcement number CN219972062U relates to a groundwater composite treatment device, including a treatment box, wherein four groups of partition plates are fixed in the treatment box to divide the treatment box from left to right into a mixed medicine pool, a flotation pool, a separation pool, a heavy metal adsorption pool and an oxidation pool for groundwater treatment; and also includes: a stirring device, which is arranged in the mixed medicine pool, and a water inlet tank is arranged above the mixed medicine pool, and the lower end of the water inlet tank is respectively fixed on the treatment box and the partition plate. The groundwater composite treatment device can facilitate the mixing of flocculants and coagulants with groundwater through the stirring mechanism, and can achieve solid-liquid separation with the aeration device, and then achieve heavy metal removal and organic pollutant reduction through heavy metal adsorption and catalysis of reducing media, and finally achieve groundwater purification through ionization oxidation and ultraviolet light sterilization, thereby ensuring the groundwater purification effect, and through oxidation reaction and reduction reaction, can effectively improve the removal efficiency of organic pollutants.

[0004] In the above patent, groundwater purification can be achieved through ionization oxidation and ultraviolet light sterilization to ensure the purification effect of groundwater, and the removal efficiency of organic pollutants can be effectively improved through oxidation reaction and reduction reaction. However, in the process of groundwater purification, there may be odor and color pollution in the groundwater. If it is not removed in time, it will not meet the drinking water standard or industrial water standard when used, and increase the subsequent treatment cost. For this reason, a groundwater extraction and reinjection circulation treatment device with better purification effect is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a groundwater extraction and reinjection circulation treatment device, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a groundwater extraction and reinjection circulation treatment device, comprising an equipment frame, a servo motor is fixedly installed on the top of the equipment frame, a transmission shaft is fixedly installed on the output end of the servo motor, a support plate is fixedly installed on the inner wall of the equipment frame, the end of the transmission shaft away from the servo motor rotates and penetrates the upper and lower walls of the support plate, a water outlet pipe is fixedly penetrated on the surface of the equipment frame, and a water inlet pipe is fixedly penetrated on the bottom of the equipment frame, and also includes: a purification device, the purification device includes a partition frame, a fixed rod, a sleeve, a lifting frame and a purification frame, the partition frame is slidably installed on the inner wall of the water inlet pipe, the fixed rod is fixedly installed on the inner wall of the water inlet pipe, the sleeve is slidably installed on the circumferential surface of the transmission shaft, the lifting frame is slidably installed on the inner wall of the equipment frame, the purification frame is fixedly installed on the inner wall of the lifting frame, the circumferential surface of the transmission shaft is provided with a spiral groove, the sleeve is connected to the transmission shaft through the spiral groove, and the filtered groundwater is discharged through the water outlet pipe during the upward movement of the sleeve to achieve groundwater purification.

[0007] According to the above technical solution, the sleeve is fixedly connected to the upper part of the lifting frame, a filter plate is fixedly installed on the inner wall of the lifting frame, a fixed plate is fixedly installed on the inner wall of the lifting frame, a No. 1 spring is arranged between the fixed plate and the filter plate, and the No. 1 spring can improve the stability of the filter plate during the movement, and a No. 2 spring is arranged between the partition frame and the fixed rod, and the No. 2 spring can drive the partition frame to reset.

[0008] According to the above technical scheme, the surface of the filter plate is provided with an anti-clogging device for preventing excessive accumulation of impurities on the surface of the filter plate, the anti-clogging device comprises a lifting tube and an arc rod, the lifting tube is slidably mounted on the circumferential surface of the transmission shaft, the arc rod is fixedly mounted on the circumferential surface of the lifting tube, the anti-clogging device also includes a fixed plate, an upper stopper, a lower stopper, a slag collecting frame and a slag collecting plate, the filter plate moves upward under the action of water pressure, drives the lower stopper to move upward, and the lower stopper moves upward and enters the movement trajectory of the upper stopper, the fixed plate is fixedly mounted on the circumferential surface of the lifting tube, the upper stopper is fixedly mounted below the fixed plate, the lower stopper is fixedly mounted above the filter plate, the slag collecting frame is fixedly mounted on the inner wall of the lifting frame, the slag collecting plate is fixedly mounted below the filter plate, and the lower stopper moves downward to drive the filter plate to move downward, thereby realizing the up and down movement of the filter plate.

[0009] According to the above technical solution, the side of the upper block close to the lower block is set as arc surface one, and the side of the lower block close to the upper block is set as arc surface two. The upper block rotates to contact the arc surface one and the arc surface two and squeeze the lower block to move downward.

[0010] According to the above technical solution, the slag collecting frame is water permeable, and the water permeable slag collecting frame can prevent water flow from re-draining impurities therein to the outside of the slag collecting frame, and the slag collecting plate is slidably connected to the inner wall of the slag collecting frame.

[0011] According to the above technical solution, it also includes an anti-backflow device, which includes a movable plate, an L-shaped rod, a protrusion and a fixed block. When the slag collecting plate moves downward, it contacts and squeezes the movable plate to move downward, and when the movable plate moves downward, it drives the L-shaped rod to move downward. The movable plate is slidably installed on the inner wall of the slag collecting frame, the L-shaped rod is fixedly installed below the movable plate, the protrusion is fixedly installed on the inner wall of the slag collecting frame, and the fixed block is fixedly installed below the movable plate. The slag collecting plate and the movable plate move downward to close the slag collecting frame and compact impurities.

[0012] According to the above technical solution, the side of the L-shaped rod close to the protrusion is set as arc surface three, and the side of the protrusion close to the L-shaped rod is set as arc surface four. The L-shaped rod is elastic, and vibration can improve the efficiency of impurities above the moving disk entering the slag collecting frame, thereby preventing impurities from being re-dispersed into the groundwater under the action of water flow.

[0013] According to the above technical solution, the top of the movable disk is set to a bevel surface, and a No. 3 spring is arranged between the movable disk and the inner wall of the slag collecting frame. The No. 3 spring can drive the movable disk to reset. A telescopic elastic rod is fixedly installed on the side of the fixed block close to the L-shaped rod. The free end of the telescopic elastic rod is fixedly connected to the L-shaped rod. After the telescopic elastic rod is contracted, repeated contact between the L-shaped rod and the protrusion is achieved and vibration is generated.

[0014] The present invention provides a groundwater extraction and reinjection circulation treatment device, which has the following beneficial effects: (1) The groundwater extraction and reinjection circulation treatment device operates through the coordinated operation of the transmission shaft, support plate, sleeve, lifting frame and purification frame. The lifting frame moves downward to drive the purification frame to move downward and squeeze out the groundwater. The squeezed groundwater is removed of odor and colored pollution under the action of activated carbon, thereby avoiding affecting the subsequent use of groundwater and reducing the subsequent treatment cost. At the same time, under the action of the filter plate, large particles of impurities are effectively removed, avoiding contact between large particles of foreign matter and the purified groundwater, reducing the risk of secondary pollution. At the same time, during the purification process, the second spring, the partition frame and the fixing rod are used to prevent the groundwater from being discharged through the water inlet pipe during the purification process, thereby improving the purification effect of the groundwater.

[0015] (2) The groundwater extraction and reinjection circulation treatment device, through the coordinated operation of the lifting pipe, the arc rod, the fixed plate, the upper block and the lower block, enables the arc rod to intermittently scrape the bottom of the filter plate to avoid long-term scraping affecting the filtering effect of the filter plate, and at the same time avoid excessive impurities accumulating under the filter plate to cause blockage. At the same time, the impurities are collected under the action of the slag collecting frame and the slag collecting plate to avoid impurities being dispersed inside the equipment frame for a long time, resulting in more and more impurities accumulating and continuously reducing the filtering effect of groundwater.

[0016] (3) The groundwater extraction and reinjection circulation treatment device improves the efficiency of impurities above the moving disk entering the slag collecting frame through the coordinated operation of the moving disk, L-shaped rod, protrusion, fixed block, No. 3 spring and telescopic elastic rod, thereby preventing impurities from being re-dispersed into the groundwater under the action of water flow, thereby reducing the filtering effect of groundwater. At the same time, the slag collecting frame and the moving disk move downward to close the slag collecting frame and compact the impurities, thereby improving the collection effect of impurities and further improving the filtering effect of groundwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the position structure of the transmission shaft and the lifting frame of the present invention; Figure 4 This is a schematic diagram of the position structure of the lifting tube and the fixed plate of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram of part A in the middle; Figure 6 This is a schematic diagram of the position structure of the filter plate and the slag collecting frame of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram of part B is shown in the figure.

[0018] In the figure: 1. equipment frame; 2. servo motor; 3. transmission shaft; 4. support plate; 5. water outlet pipe; 6. water inlet pipe; 7. partition frame; 8. fixing rod; 9. sleeve; 10. lifting frame; 11. purification frame; 12. filter plate; 13. fixing plate; 14. No. 1 spring; 15. No. 2 spring; 161. lifting pipe; 162. arc rod; 163. fixing plate; 164. upper stopper; 165. lower stopper; 166. slag collecting frame; 167. slag collecting plate; 171. moving plate; 172. L-shaped rod; 173. protrusion; 174. fixing block; 175. No. 3 spring; 176. telescopic elastic rod. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 7, one embodiment of the present invention is: a groundwater extraction and reinjection circulation treatment device, including an equipment frame 1, a servo motor 2 is fixedly installed on the top of the equipment frame 1, a transmission shaft 3 is fixedly installed on the output end of the servo motor 2, a support plate 4 is fixedly installed on the inner wall of the equipment frame 1, and the end of the transmission shaft 3 away from the servo motor 2 rotates and penetrates the upper and lower walls of the support plate 4, a water outlet pipe 5 is fixedly penetrated on the surface of the equipment frame 1, and a water inlet pipe 6 is fixedly penetrated on the bottom of the equipment frame 1, and also includes: a purification device, the purification device includes a partition frame 7, a fixing rod 8, a sleeve 9, a lifting frame 10 and a purification frame 11, the partition frame 7 is slidably installed on the inner wall of the water inlet pipe 6, and the fixing rod 8 is fixedly installed On the inner wall of the water inlet pipe 6, the sleeve 9 is slidably installed on the circumferential surface of the transmission shaft 3, the lifting frame 10 is slidably installed on the inner wall of the equipment frame 1, the purification frame 11 is fixedly installed on the inner wall of the lifting frame 10, the filter plate 12 is slidably installed on the inner wall of the lifting frame 10, and the fixed plate 13 is fixedly installed on the inner wall of the lifting frame 10. A spiral groove is provided on the circumferential surface of the transmission shaft 3, and the sleeve 9 is connected to the transmission shaft 3 through the spiral groove. During the upward movement of the sleeve 9, the purified groundwater is discharged through the outlet pipe 5, thereby realizing the purification of the groundwater, and removing the odor and colored pollution therein under the action of activated carbon, avoiding affecting the subsequent use of groundwater and reducing the risk of secondary pollution.

[0021] The sleeve 9 is fixedly connected to the upper part of the lifting frame 10, a filter plate 12 is fixedly installed on the inner wall of the lifting frame 10, a fixing plate 13 is fixedly installed on the inner wall of the lifting frame 10, a No. 1 spring 14 is arranged between the fixing plate 13 and the filter plate 12, and the No. 1 spring 14 can improve the stability of the filter plate 12 during the movement, and a No. 2 spring 15 is arranged between the partition frame 7 and the fixed rod 8, and the No. 2 spring 15 can drive the partition frame 7 to reset.

[0022] When this embodiment is working: groundwater enters the interior of the equipment frame 1 through the water inlet pipe 6, and then the servo motor 2 is started. The output end of the servo motor 2 rotates to drive the transmission shaft 3 to rotate. The transmission shaft 3 rotates and drives the sleeve 9 to move up and down through the spiral groove. When the sleeve 9 moves downward, it drives the lifting frame 10 to move downward. The lifting frame 10 moves downward and drives the purification frame 11. The purification frame 11 moves downward to squeeze out the groundwater and remove the odor and colored pollution therein under the action of activated carbon, so as to avoid affecting the subsequent use of groundwater and reduce the subsequent processing cost. At the same time, the lifting frame 10 moves downward to drive the filter plate 12 to move downward. The filter plate 12 moves downward to filter out large particles of impurities in the groundwater, thereby achieving coarse filtration of the groundwater. The groundwater after coarse filtration is purified under the action of the purification frame 11. , and then, in the process of the sleeve 9 moving upward, the filtered groundwater is discharged through the outlet pipe 5, so as to purify the groundwater and effectively remove large particles of impurities, avoid contact between large particles of foreign matter and the filtered groundwater, and reduce the risk of secondary pollution. At the same time, in the process of groundwater entering the equipment frame 1 through the water inlet pipe 6, the partition frame 7 moves upward under the action of water pressure, and the partition frame 7 moves upward to open the water inlet pipe 6. When the partition frame 7 moves upward, it squeezes the No. 2 spring 15. When the water inlet stops, the partition frame 7 re-closes the water inlet pipe 6 under the action of the No. 2 spring 15. Then, in the purification process, the partition frame 7 is always in contact with the water inlet pipe 6 under the action of water pressure, so as to avoid the discharge of groundwater through the water inlet pipe 6 during the purification process, thereby improving the purification effect of groundwater.

[0023] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, the surface of the filter plate 12 is provided with an anti-clogging device for preventing excessive accumulation of impurities on the surface of the filter plate 12, the anti-clogging device includes a lifting tube 161 and an arc rod 162, the lifting tube 161 is slidably mounted on the circumferential surface of the transmission shaft 3, the arc rod 162 is fixedly mounted on the circumferential surface of the lifting tube 161, the anti-clogging device also includes a fixed plate 163, an upper stopper 164, a lower stopper 165, a slag collecting frame 166 and a slag collecting plate 167, the filter plate 12 moves upward under the action of water pressure, driving the lower stopper 165 to move upward, and the lower stopper 165 moves upward to enter the upper stopper 164 Motion trajectory, the fixed plate 163 is fixedly installed on the circumferential surface of the lifting tube 161, the upper stopper 164 is fixedly installed below the fixed plate 163, the lower stopper 165 is fixedly installed above the filter plate 12, the slag collecting frame 166 is fixedly installed on the inner wall of the lifting frame 10, and the slag collecting plate 167 is fixedly installed below the filter plate 12. The lower stopper 165 moves downward to drive the filter plate 12 to move downward, thereby realizing the up and down movement of the filter plate 12, so that the arc rod 162 intermittently scrapes the bottom of the filter plate 12 to avoid long-term scraping affecting the filtering effect of the filter plate 12, and at the same time avoids excessive impurities accumulating under the filter plate 12 to cause blockage.

[0024] The side of the upper stopper 164 close to the lower stopper 165 is set as arc surface 1, and the side of the lower stopper 165 close to the upper stopper 164 is set as arc surface 2. The upper stopper 164 rotates to contact the arc surface 1 and the arc surface 2 and squeeze the lower stopper 165 to move downward.

[0025] The slag collecting frame 166 is water-permeable, and the water-permeable slag collecting frame 166 can prevent the water flow from re-guiding the impurities therein to the outside of the slag collecting frame 166 . The slag collecting plate 167 is slidably connected to the inner wall of the slag collecting frame 166 .

[0026] It also includes an anti-backflow device, which includes a movable plate 171, an L-shaped rod 172, a protrusion 173 and a fixed block 174. When the slag collecting plate 167 moves downward, it contacts and squeezes the movable plate 171 to move downward. When the movable plate 171 moves downward, it drives the L-shaped rod 172 to move downward. The movable plate 171 is slidably installed on the inner wall of the slag collecting frame 166, the L-shaped rod 172 is fixedly installed below the movable plate 171, the protrusion 173 is fixedly installed on the inner wall of the slag collecting frame 166, and the fixed block 174 is fixedly installed below the movable plate 171. The downward movement of the slag collecting plate 167 and the movable plate 171 will close the slag collecting frame 166 and compact impurities, thereby improving the collection effect of impurities and further improving the filtering effect of groundwater.

[0027] The side of the L-shaped rod 172 close to the protrusion 173 is set as arc surface three, and the side of the protrusion 173 close to the L-shaped rod 172 is set as arc surface four. The L-shaped rod 172 is elastic, and vibration can improve the efficiency of impurities above the moving plate 171 entering the slag collecting frame 166, thereby preventing impurities from being re-dispersed into the groundwater under the action of water flow.

[0028] The top of the movable disk 171 is set as a bevel surface, and a No. 3 spring 175 is arranged between the movable disk 171 and the inner wall of the slag collecting frame 166. The No. 3 spring 175 can drive the movable disk 171 to reset. A telescopic elastic rod 176 is fixedly installed on the side of the fixed block 174 close to the L-shaped rod 172. The free end of the telescopic elastic rod 176 is fixedly connected to the L-shaped rod 172. After the telescopic elastic rod 176 is contracted, the L-shaped rod 172 and the protrusion 173 are repeatedly contacted and vibration is generated.

[0029] When the present embodiment is working, the transmission shaft 3 rotates to drive the lifting tube 161 to rotate, and the lifting tube 161 rotates to drive the arc rod 162 to rotate. The arc rod 162 rotates to scrape off the large particles of impurities filtered out from the bottom of the filter plate 12. At the same time, when the filter plate 12 moves downward to purify the groundwater, the filter plate 12 moves upward under the action of the water pressure to drive the lower block 165 to move upward. The lower block 165 moves upward and enters the movement track of the upper block 164. The lifting tube 161 rotates and drives the upper block 164 to rotate. The upper block 164 rotates to contact and squeeze the lower block 165 to move downward. The lower block 165 moves downward to drive the filter plate 12 to move downward, thereby realizing the up and down movement of the filter plate 12, so that the arc rod 162 Intermittent scraping is performed underneath the filter plate 12 to prevent long-term scraping from affecting the filtering effect of the filter plate 12 and to prevent excessive impurities from accumulating under the filter plate 12 and causing blockage. The scraped large particles of impurities are pushed to the outside of the filter plate 12 away from the center under the action of the arc rod 162. When the filter plate 12 moves upward, it drives the slag collecting plate 167 upward, and the slag collecting plate 167 moves upward to open the entrance of the slag collecting frame 166, so that the impurities pushed to the outside of the filter plate 12 enter the inside of the slag collecting frame 166, thereby preventing impurities from being dispersed inside the equipment frame 1 for a long time, resulting in more and more impurities accumulating and continuously reducing the filtering effect on groundwater, effectively reducing the maintenance cost of the equipment and improving the filtering effect on groundwater.

[0030] The impurities entering the slag collecting frame 166 gradually enter the bottom of the slag collecting frame 166 under the action of the movable plate 171. At the same time, when the slag collecting plate 167 moves downward, it contacts and squeezes the movable plate 171 to move downward. When the movable plate 171 moves downward, it drives the L-shaped rod 172 to move downward. The L-shaped rod 172 moves downward to contact the protrusion 173 and moves away from the protrusion 173 under its action. The L-shaped rod 172 moves to squeeze the telescopic elastic rod 176 to contract. After the telescopic elastic rod 176 contracts, the L-shaped rod 172 and the protrusion 173 are repeatedly contacted and vibration is generated. The vibration can improve the efficiency of the impurities above the movable plate 171 entering the slag collecting frame 166, and prevent the impurities from being re-dispersed in the groundwater under the action of the water flow, thereby reducing the filtering effect of the groundwater. At the same time, the slag collecting plate 167 and the movable plate 171 move downward to close the slag collecting frame 166 and compact the impurities, thereby improving the collection effect of the impurities and further improving the filtering effect of the groundwater.

[0031] 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 groundwater extraction and reinjection circulation treatment device, comprising a device frame (1), a servo motor (2) is fixedly mounted on the top of the device frame (1), a transmission shaft (3) is fixedly mounted on the output end of the servo motor (2), a support plate (4) is fixedly mounted on the inner wall of the device frame (1), an end of the transmission shaft (3) away from the servo motor (2) rotates and penetrates the upper and lower walls of the support plate (4), a water outlet pipe (5) is fixedly penetrated on the surface of the device frame (1), and a water inlet pipe (6) is fixedly penetrated on the bottom of the device frame (1), characterized in that: Also includes: A purification device, comprising a partition frame (7), a fixing rod (8), a sleeve (9), a lifting frame (10) and a purification frame (11), wherein the partition frame (7) is slidably mounted on the inner wall of a water inlet pipe (6), the fixing rod (8) is fixedly mounted on the inner wall of the water inlet pipe (6), the sleeve (9) is slidably mounted on the circumferential surface of a transmission shaft (3), the lifting frame (10) is slidably mounted on the inner wall of a device frame (1), the purification frame (11) is fixedly mounted on the inner wall of the lifting frame (10), the circumferential surface of the transmission shaft (3) is provided with a spiral groove, the sleeve (9) is connected to the transmission shaft (3) via the spiral groove, activated carbon is arranged inside the purification frame (11), and the purification frame (11) is made of a water-permeable material.

2. A groundwater extraction and reinjection circulation treatment device according to claim 1, characterized in that: The sleeve (9) is fixedly connected to the upper part of the lifting frame (10); a filter plate (12) is fixedly mounted on the inner wall of the lifting frame (10); a fixing plate (13) is fixedly mounted on the inner wall of the lifting frame (10); a first spring (14) is arranged between the fixing plate (13) and the filter plate (12); and a second spring (15) is arranged between the partition frame (7) and the fixing rod (8).

3. A groundwater extraction and reinjection circulation treatment device according to claim 2, characterized in that: The invention also comprises an anti-clogging device, which comprises a lifting tube (161), an arc-shaped rod (162), a fixed plate (163), an upper stopper (164), a lower stopper (165), a slag collecting frame (166) and a slag collecting plate (167); the lifting tube (161) is slidably mounted on the circumferential surface of the transmission shaft (3); the arc-shaped rod (162) is fixedly mounted on the circumferential surface of the lifting tube (161); the fixed plate (163) is fixedly mounted on the circumferential surface of the lifting tube (161); the upper stopper (164) is fixedly mounted below the fixed plate (163); the lower stopper (165) is fixedly mounted above the filter plate (12); the slag collecting frame (166) is fixedly mounted on the inner wall of the lifting frame (10); and the slag collecting plate (167) is fixedly mounted below the filter plate (12).

4. A groundwater extraction and reinjection circulation treatment device according to claim 3, characterized in that: A side of the upper stopper (164) close to the lower stopper (165) is configured as a first arc surface, and a side of the lower stopper (165) close to the upper stopper (164) is configured as a second arc surface.

5. A groundwater extraction and reinjection circulation treatment device according to claim 4, characterized in that: The slag collecting frame (166) is water permeable, and the slag collecting plate (167) is slidably connected to the inner wall of the slag collecting frame (166).

6. A groundwater extraction and reinjection circulation treatment device according to claim 5, characterized in that: The invention also comprises a backflow prevention device, the backflow prevention device comprising a movable disk (171), an L-shaped rod (172), a protrusion (173) and a fixed block (174), the movable disk (171) being slidably mounted on the inner wall of the slag collection frame (166), the L-shaped rod (172) being fixedly mounted below the movable disk (171), the protrusion (173) being fixedly mounted on the inner wall of the slag collection frame (166), and the fixed block (174) being fixedly mounted below the movable disk (171).

7. A groundwater extraction and reinjection circulation treatment device according to claim 6, characterized in that: A side of the L-shaped rod (172) close to the protrusion (173) is configured as arc surface three, and a side of the protrusion (173) close to the L-shaped rod (172) is configured as arc surface four. The L-shaped rod (172) is elastic.

8. The groundwater extraction and reinjection circulation treatment device according to claim 7 is characterized by: The upper portion of the movable plate (171) is provided with an oblique cut surface, a No. 3 spring (175) is provided between the movable plate (171) and the inner wall of the slag collecting frame (166), a telescopic spring rod (176) is fixedly mounted on a side of the fixed block (174) close to the L-shaped rod (172), and a free end of the telescopic spring rod (176) is fixedly connected to the L-shaped rod (172).

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