A groundwater remediation system

Abstract

The present application relates to the technical field of soil pollution remediation, in particular to a groundwater pollution remediation system, comprising a platform, a well body, a liquid storage tank, a liquid discharge pipe, a liquid pump, a detection mechanism and a protection mechanism, the platform is connected with the well body, the liquid storage tank, the liquid discharge pipe, the liquid pump and the detection mechanism, the bottom of the well body is placed below the platform, the top of the liquid discharge pipe is connected with the bottom of the liquid storage tank, the output end of the liquid pump is connected with the liquid discharge pipe, the other end of the liquid discharge pipe is connected with the protection mechanism, the protection mechanism is placed inside the well body, the device sets the detection mechanism to detect and determine the composition of pollutants, then the liquid storage tank, the liquid discharge pipe and the liquid pump are used to smoothly and accurately inject the medicament into the bottom layer to accurately eliminate the pollution in the groundwater, improve the working efficiency of the remediation system and reduce the waste of medicament.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil pollution remediation, in particular to a groundwater pollution remediation system. BACKGROUND

[0002] Groundwater pollution is an important issue in current environmental governance, and the sources of pollutants include industrial wastewater, agricultural chemicals and urban domestic sewage. Remediation technologies are mainly divided into in-situ remediation and ex-situ remediation, among which in-situ remediation is increasingly widely used due to the advantages of no need for excavation, small environmental disturbance and low risk of secondary pollution. In-situ remediation usually injects remediation agents into soil and groundwater through injection wells to degrade, transform or remove pollutants. Existing injection well technologies include high-pressure rotary jet, fixed injection well and straight push injection, among which fixed injection well dominates due to its simple operation and low cost.

[0003] However, the device in the prior art has the phenomenon of difficult control of the injection of the agent, that is, due to the lack of real-time detection data, the injection amount of the remediation agent is difficult to accurately control, which may cause waste of the agent or delay of the remediation progress. SUMMARY

[0004] The present application provides a groundwater pollution remediation system to solve the problems in the background art.

[0005] In order to achieve the above-mentioned application purposes, the present application provides the following technical scheme: a groundwater pollution remediation system, comprising: a platform, a well body, a liquid storage tank, a liquid discharge pipe, a liquid pump, a detection mechanism and a protection mechanism, the platform is connected with the well body, the liquid storage tank, the liquid discharge pipe, the liquid pump and the detection mechanism, the bottom of the well body is placed below the platform, the top of the liquid discharge pipe is connected with the bottom of the liquid storage tank, the output end of the liquid pump is connected with the liquid discharge pipe, the other end of the liquid discharge pipe is connected with the protection mechanism, and the protection mechanism is placed inside the well body.

[0006] Preferably, the protection mechanism comprises a receiving pipe, the other end of the liquid discharge pipe is connected with the top end of the receiving pipe through a ring filter screen, the inner wall of the ring filter screen is slidingly sealed with the side wall of a sealing pipe, the top of the sealing pipe is arranged towards the liquid discharge pipe, the bottom of the sealing pipe is connected with the top of a baffle, and the bottom of the baffle is connected with the bottom wall of the receiving pipe through a spring.

[0007] Preferably, two quartz sand filter layers and two bentonite sealing layers are longitudinally spaced apart in the well body, the ring filter screen is arranged in one of the quartz sand filter layers, the quartz sand filter layers and the bentonite sealing layers are arranged alternately, the quartz sand filter layers are arranged below the bentonite sealing layers, the side wall of the well body is provided with a plurality of through holes at the end portion, and the other end of the through holes is arranged on the inner wall of the well body and faces the quartz sand filter layer.

[0008] Preferably, the platform is connected with an aeration pipe and an air extraction pipe, the aeration pipe is connected with an air pump, the end of the aeration pipe away from the top surface of the platform is connected with an air filter tank, and the other end of the aeration pipe is arranged in a quartz sand filter layer.

[0009] Preferably, the air extraction pipe is connected with a vacuum pump, the air pump and the vacuum pump are both connected with the platform, the end of the air extraction pipe is arranged in another quartz sand filter layer, and the end of the air extraction pipe is arranged above the other end of the aeration pipe.

[0010] Preferably, the other end of the air extraction pipe is connected with one side of a gas-liquid separator, the gas-liquid separator is connected with the top of the platform, the other side of the gas-liquid separator is connected with the end of an exhaust pipe, the other end of the exhaust pipe is connected with the end of a detection box in a detection mechanism, and the detection box is connected with a gas detection element.

[0011] Preferably, the other end of the detection box is connected with the end of a release pipe, the release pipe is provided with a one-way valve, and the other end of the release pipe is arranged towards the top of the platform.

[0012] Preferably, the other end of the exhaust pipe is connected with the end of an exhaust pipe two through a dust removal assembly, the other end of the exhaust pipe two is slidingly connected with a flange plate, the end surface of the flange plate is connected with the ends of a plurality of insertion rods, the insertion rods are in insertion fit with the flange plate two, the flange plate two is connected at the end of an exhaust pipe three, the other end of the exhaust pipe two is arranged adjacent to the end of the exhaust pipe three, the other end of the exhaust pipe three is connected with the end of the detection box, the flange plate is in contact fit with the flange plate two, the other end surface of the flange plate away from the insertion rods is connected with a rack, the rack is in meshing connection with a gear, and the gear is rotationally connected with the exhaust pipe two through a rotating shaft.

[0013] Preferably, the rotating shaft is connected with a worm gear, the worm gear is in meshing connection with a worm, and the worm is rotationally connected with the exhaust pipe two.

[0014] Preferably, the dust removal assembly comprises a sleeve pipe, the other end of the exhaust pipe is connected with the side wall of the sleeve pipe, an insertion pipe is rotationally and sealingly connected in the sleeve pipe, a plurality of filter holes are arranged in the circumferential direction of the side wall of the insertion pipe, the filter holes are concentrically arranged with the exhaust pipe, one filter screen is connected in each filter hole, the exhaust pipe two is in rotational fit with the insertion pipe, the other end of the insertion pipe arranged in the insertion pipe is arranged towards the other end of the exhaust pipe and is in sliding sealing fit with the inner wall of the insertion pipe, and the bottom of the exhaust pipe two is connected with the side wall of the sleeve pipe through a connecting rod.

[0015] The present application has the following beneficial effects:

[0016] In the scheme of the present application:

[0017] The device setting detection mechanism detects and determines the composition of the pollutants, and then the liquid storage tank, the liquid discharge pipe and the liquid pump are used to smoothly and accurately inject the medicament into the bottom layer to accurately eliminate the pollution in the groundwater, improve the working efficiency of the repair system, and reduce the waste of the medicament.

[0018] The protection mechanism is arranged to protect the liquid discharge pipe, prevent the phenomenon of mud or sundries in the bottom layer entering the liquid discharge pipe when the device is not working, and further ensure that the device cannot discharge the medicament when repairing the groundwater next time. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The main structure of the present application is shown in the schematic diagram.

[0020] Figure 2 The well body of the present application is shown in the sectional view.

[0021] Figure 3 The storage tube of the present application is shown in the sectional view.

[0022] Figure 4 The platform of the present application is shown in the sectional view.

[0023] Figure 5 The connection relationship between the second exhaust pipe and the third exhaust pipe of the present application is shown in the schematic diagram.

[0024] Figure 6 The second exhaust pipe of the present application is shown in the sectional view.

[0025] Figure 7 The sleeve pipe of the present application is shown in the sectional view.

[0026] Figure 8 The drive disc structure of the present application is shown in the schematic diagram.

[0027] Figure 9 The gear four structure of the present application is shown in the schematic diagram.

[0028] Figure 10 The mounting pipe of the present application is shown in the sectional view.

[0029] Figure 11 The rubber rod structure of the present application is shown in the schematic diagram.

[0030] The platform 1, the well body 2, the liquid storage tank 3, the liquid discharge pipe 4, the liquid pump 5, the protection mechanism 6, the storage pipe 7, the annular filter screen 8, the sealing pipe 9, the baffle disc 10, the spring 11, the through hole 12, the aeration pipe 13, the air extraction pipe 14, the air pump 15, the air filter tank 16, the vacuum pump 17, the gas-liquid separator 18, the exhaust pipe 19, the detection box 20, the release pipe 21, the exhaust pipe 22, the flange plate 23, the insertion rod 24, the flange plate 25, the exhaust pipe 26, the rack 27, the gear 28, the rotating shaft 29, the worm wheel 30, the worm 31, the sleeve 32, the insertion pipe 33, the filter hole 34, the filter screen 35, the connecting rod 36, the rotating shaft 37, the fan blade 38, the gear 39, the gear 40, the rotating shaft 41, the connecting rod 42, the guide rod 43, the driving disc 44, the U-shaped groove 45, the rotating shaft 46, the discharge pipe 47, the gear 48, the push rod 49, the mounting ring 50, the spring 51, the mounting pipe 52, the sliding block 53, the rubber rod 54, the ball top 55, the spring 56. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and should not be used to limit the present application.

[0032] Embodiment one: reference Figures 1-11 The underground water pollution remediation system comprises a platform 1, a well body 2, a liquid storage tank 3, a liquid discharge pipe 4, a liquid pump 5, a detection mechanism and a protection mechanism 6. The well body 2, the liquid storage tank 3, the liquid discharge pipe 4, the liquid pump 5 and the detection mechanism are connected to the platform 1. The bottom of the well body 2 is arranged below the platform 1. The top of the liquid discharge pipe 4 is connected to the bottom of the liquid storage tank 3. The output end of the liquid pump 5 is connected to the liquid discharge pipe 4. The other end of the liquid discharge pipe 4 is connected to the protection mechanism 6. The protection mechanism 6 is arranged in the well body 2.

[0033] The principle of the above scheme is as follows:

[0034] When the device is used to remediate underground water, the composition of the pollutants in the underground water needs to be confirmed by the detection mechanism first. Then, the medicament is injected into the underground water to eliminate the pollutants in the underground water. After the detection of the composition is completed, the liquid pump 5 is started to work. The medicament in the liquid storage tank 3 is discharged into the protection mechanism 6 through the liquid discharge pipe 4 and is discharged into the well body 2 through the protection mechanism 6. When the medicament is discharged, the protection mechanism 6 is in an open state to facilitate the smooth injection of the medicament. When the injection of the medicament is completed, the protection mechanism 6 is in a closed state to prevent the silt in the well body 2 from entering the liquid discharge pipe 4 and causing the liquid discharge pipe 4 to be blocked.

[0035] The beneficial effects of the above scheme are as follows:

[0036] The device setting detection mechanism detects and determines the composition of the pollutants, and then through the liquid storage tank 3, the liquid discharge pipe 4 and the liquid pump 5, the medicament is smoothly and accurately injected into the bottom layer to accurately eliminate the pollution in the groundwater, thereby improving the working efficiency of the repair system and reducing the waste of medicament.

[0037] The protection mechanism 6 is arranged to protect the liquid discharge pipe 4, so that the phenomenon of mud or impurities in the bottom layer entering the liquid discharge pipe 4 does not occur when the device is not working, thereby further ensuring that the device does not have the phenomenon that the medicament cannot be discharged when the groundwater is repaired next time.

[0038] Embodiment two: Figures 1-11 The protection mechanism 6 comprises a receiving pipe 7, the other end of the liquid discharge pipe 4 is connected to the top end of the receiving pipe 7 through a ring filter screen 8, the inner wall of the ring filter screen 8 is slidingly sealed with the side wall of a sealing pipe 9, the top of the sealing pipe 9 is arranged towards the liquid discharge pipe 4, the bottom of the sealing pipe 9 is connected to the top of a baffle disc 10, and the bottom of the baffle disc 10 is connected to the bottom wall of the receiving pipe 7 through a spring 11.

[0039] The principle of the above scheme is:

[0040] When the device injects the medicament, the medicament enters the inside of the sealing pipe 9 through the liquid discharge pipe 4, the sealing pipe 9 and the baffle disc 10 move downward in the receiving pipe 7 after the pressure increases, and the spring 11 is compressed, when the pressure reaches a certain degree, the sealing pipe 9 ends the sealing of the ring filter screen 8, and then the medicament in the liquid discharge pipe 4 can be discharged to the formation through the ring filter screen 8;

[0041] When the medicament in the liquid discharge pipe 4 ends the discharge, the pressure on the sealing pipe 9 and the baffle disc 10 decreases, and the height of the sealing pipe 9 rises under the elastic force of the spring 11, thereby sealing the ring filter screen 8 again;

[0042] The beneficial effects of the above scheme are:

[0043] The side of the sealing pipe 9 seals the ring filter screen 8, which can prevent the mud or impurities in the formation from entering the liquid discharge pipe 4 through the ring filter screen 8 after the device ends the injection of the medicament;

[0044] At the same time, since a large amount of medicament needs to be discharged during the pollution repair, the diameter of the liquid discharge pipe 4 will be moderately increased, when the amount of medicament to be discharged increases to a certain degree, a general one-way valve cannot control the flow direction of the medicament in the liquid discharge pipe 4, therefore, the sealing pipe 9 and the ring filter screen 8 are arranged to seal and cooperate, which reduces the difficulty in manufacturing the device, reduces the manufacturing cost of the device, and further increases the practicability of the device in use.

[0045] Embodiment three: Figures 1-11, two quartz sand filter layers and two bentonite sealing layers are longitudinally and spacedly arranged in the well body 2, the annular filter screen 8 is arranged in one quartz sand filter layer, the quartz sand filter layers and the bentonite sealing layers are alternately arranged, the quartz sand filter layer is arranged below the bentonite sealing layer, the side wall of the well body 2 is provided with a plurality of through holes 12 at the end, and the other end of the through hole 12 is arranged on the inner wall of the well body 2 and faces the quartz sand filter layer.

[0046] The principle and beneficial effects of the above scheme are:

[0047] When the medicament is injected, the medicament discharged from the annular filter screen 8 first enters the quartz sand filter layer, and then enters the stratum through the through hole 12 arranged on the well body 2, the arrangement of the quartz sand filter layer facilitates the flow of the medicament, and the arrangement of the bentonite sealing layer prevents the occurrence of backflow in the quartz sand filter layer, thereby ensuring the utilization rate of the medicament after injection.

[0048] Embodiment four: Figures 1-11 , the platform 1 is connected with an aeration pipe 13 and an air extraction pipe 14, the aeration pipe 13 is connected with an air pump 15, the end of the aeration pipe 13 away from the top surface of the platform 1 is connected with an air filter tank 16, and the other end of the aeration pipe 13 is arranged in one quartz sand filter layer.

[0049] The principle and beneficial effects of the above scheme are:

[0050] Before the medicament needs to be injected, the types of pollutants in the stratum need to be determined, at this time, the air pump 15 is started, and the air in the environment enters the aeration pipe 13 through the air filter tank 16, is transported through the aeration pipe 13, and enters one quartz sand filter layer, because the quartz sand filter layer itself has a certain fluidity, a certain amount of sewage is contained in the quartz sand filter layer, the air pressure output by the aeration pipe 13 makes the pollutants and volatile substances in the sewage in the quartz sand filter layer flow upward, thereby reducing the difficulty of obtaining the pollutant composition;

[0051] Meanwhile, two quartz sand filter layers and two bentonite sealing layers are longitudinally and spacedly arranged in the well body 2, the quartz sand filter layers and the bentonite sealing layers are alternately arranged, and the quartz sand filter layer is arranged below the bentonite sealing layer, so that the pollutants can be prevented from directly escaping from the well body 2;

[0052] Further, a layer of cement can also be sealed on the uppermost bentonite sealing layer, so as to further ensure that the device does not leak gas during detection, thereby ensuring the safety of the device during work and protecting the surrounding workers;

[0053] The air filter tank 16 can prevent impurities and dust in the external air from entering the quartz sand filter layer, thereby avoiding the pollution or blockage of the quartz sand filter layer or the formation around the well body 2, and ensuring the flow of the agent during injection, preventing the agent from being blocked locally, and avoiding incomplete repair.

[0054] Embodiment five: refer to Figures 1-11 The air pump 15 and the vacuum pump 17 are connected to the platform 1, the end of the air extraction pipe 14 is placed in another quartz sand filter layer, and the end of the air extraction pipe 14 is placed above the other end of the air supply pipe 13.

[0055] The principle and advantages of the above scheme are:

[0056] After the air supply pipe 13 inputs air, the volatile substances of the pollutants first pass through the quartz sand filter layer where the air supply pipe 13 is located. At this time, the drainage pipe 4 does not inject the agent, and the sealing pipe 9 seals the annular filter screen 8, so that the volatile substances and the gas cannot enter the drainage pipe 4, and thus no bubbles are generated during the injection of the agent. Since the valve device is closed during the injection of the liquid, the change in the flow rate of the liquid will cause the bubbles to break, and the impact of the broken bubbles on the pipeline structure is much greater than the harmful water hammer effect, so the elimination of the bubbles can avoid the rupture and vibration of the pipeline.

[0057] The elimination of the bubbles can avoid the alternating blockage phenomenon caused by the intermittent flow of the gas and the liquid, thereby protecting the bends, valve components, and flanges of the pipeline from the impact of the liquid after the flow of the bubbles.

[0058] Further, the cavitation phenomenon can be avoided, thereby prolonging the service life of the pipeline.

[0059] When the drainage pipe 4 is not working, the bottom is in a closed state, so the corrosive gases such as hydrogen sulfide and carbon dioxide generated by the pollutants cannot enter the inside of the drainage pipe 4, and thus the phenomenon of corrosive liquid generated by the combination of harmful gases and water is avoided, thereby prolonging the service life of the drainage pipe 4 and ensuring that the agent is effectively injected.

[0060] Under the action of the air pressure in the air supply pipe 13, the volatile substances enter another quartz sand filter layer through the bentonite sealing layer, and are then collected through the air extraction pipe 14. To improve the collection efficiency, the vacuum pump 17 is opened to reduce the air pressure in the air extraction pipe 14, thereby increasing the collection efficiency of the volatile substances and the gas.

[0061] Embodiment six: refer to Figures 1-11The other end of the air extraction pipe 14 is connected to one side of a gas-liquid separator 18, the gas-liquid separator 18 is connected to the top of the platform 1, the other side of the gas-liquid separator 18 is connected to the end of an exhaust pipe 19, the other end of the exhaust pipe 19 is connected to the end of a detection box 20 in the detection mechanism, and a gas detection element is connected in the detection box 20.

[0062] The principle and beneficial effects of the above scheme are:

[0063] The volatile substances and gas entering the air extraction pipe 14 are separated from water under the action of the gas-liquid separator 18, and then the gas and volatile substances enter the detection box 20 through the exhaust pipe 19, and the composition and type of the pollutants are specifically calculated by the gas detection element in the detection box 20, so as to determine the type and composition of the reagent, improve the utilization rate of the reagent during sewage treatment, and improve the efficiency of sewage treatment.

[0064] Example seven: refer to Figures 1-11 The other end of the detection box 20 is connected to the end of a release pipe 21, the release pipe 21 is provided with a one-way valve, and the other end of the release pipe 21 is arranged towards the top of the platform 1.

[0065] The principle and beneficial effects of the above scheme are:

[0066] While the detection box 20 detects the composition of the pollutants, the detected gas can be discharged to the outside of the detection box 20 through the release pipe 21, and since the other end of the release pipe 21 is arranged towards the top of the platform 1, water will not enter the detection box 20 when it rains in the environment where the device is located, and the one-way valve in the release pipe 21 can further improve the sealing effect of the inside of the detection box 20.

[0067] Example eight: refer to Figures 1-11 The other end of the exhaust pipe 19 is connected to the end of an exhaust pipe two 22 through a dust removal assembly, the other end of the exhaust pipe two 22 is slidingly connected to a flange plate 23, the end surface of the flange plate 23 is connected to the end of a plurality of insertion rods 24, the insertion rods 24 are inserted and matched with a flange plate two 25, the flange plate two 25 is connected to the end of an exhaust pipe three 26, the other end of the exhaust pipe two 22 is arranged adjacent to the end of the exhaust pipe three 26, the other end of the exhaust pipe three 26 is connected to the end of the detection box 20, the flange plate 23 is in contact with the flange plate two 25, the other end surface of the flange plate 23 away from the insertion rods 24 is connected to a rack 27, the rack 27 is in meshing connection with a gear 28, and the gear 28 is in rotational connection with the exhaust pipe two 22 through a rotating shaft 29.

[0068] The rotating shaft 29 is connected with a worm wheel 30, the worm wheel 30 is in meshing connection with a worm 31, and the worm 31 is in rotational connection with the exhaust pipe two 22.

[0069] The principle and beneficial effects of the above scheme are:

[0070] When the exhaust pipe two 22 needs to be disassembled, the worm 31 is rotated in the forward direction, the worm 31 drives the worm gear 30 connected therewith to rotate in the forward direction, and then the shaft 29 and the gear 28 rotate in the forward direction. Under the sliding fit of the exhaust pipe two 22, the rack 27 connected with the gear 28 drives the flange plate 23 and the plug rod 24 to move away from the detection box 20. The plug rod 24 ends the plug fit with the flange plate two 25, and the flange plate 23 ends the sealing fit with the flange plate two 25.

[0071] When the exhaust pipe two 22 needs to be installed, the flange plate 23 is adjusted to contact and fit with the flange plate two 25, the worm 31 is reversed, the worm 31 drives the worm gear 30 connected therewith to rotate in the reverse direction, and then the shaft 29 and the gear 28 rotate in the reverse direction. Under the sliding fit of the exhaust pipe two 22, the rack 27 connected with the gear 28 drives the flange plate 23 and the plug rod 24 to move towards the detection box 20. The plug rod 24 is plug fit with the flange plate two 25.

[0072] Since the worm gear 30 is connected with the worm 31, the worm 31 can lock the worm gear 30. Therefore, when the exhaust pipe two 22 and the exhaust pipe three 26 need to be sealed, the worm 31 can be rotated to the position to maintain the sealing effect between the parts, and the efficiency of disassembly and installation between the parts can be improved.

[0073] Embodiment nine: refer to Figures 1-11 The dust removal assembly includes a sleeve 32, the other end of the exhaust pipe 19 is connected with the side wall of the sleeve 32, a plug pipe 33 is rotatably and sealingly connected in the sleeve 32, a plurality of filter holes 34 are arranged in the circumferential direction of the side wall of the plug pipe 33, the filter holes 34 are concentrically arranged with the exhaust pipe 19, one filter screen 35 is connected in each filter hole 34, the exhaust pipe two 22 is rotatably connected with the plug pipe 33, the other end of the exhaust pipe two 22 arranged in the plug pipe 33 is arranged towards the other end of the exhaust pipe 19 and is sealingly connected with the inner wall of the plug pipe 33, and the bottom of the exhaust pipe two 22 is connected with the side wall of the sleeve 32 through a connecting rod 36.

[0074] The principle and beneficial effects of the above scheme are:

[0075] The dry gas and volatile substances in the exhaust pipe 19 are input into the sleeve 32, and then enter the exhaust pipe two 22 through the filter screen 35 in the filter hole 34 of the plug pipe 33. When the pressure output by the aeration pipe 13 is high, part of the soil in the bentonite sealing layer will enter the air extraction pipe 14. After drying by the gas-liquid separator 18, the soil will be in the form of dust. In order to avoid damage to the gas detection element caused by dust and ensure the accuracy of the detection result, the filter screen 35 is arranged to intercept and store the dust, which can reduce the difficulty of maintenance and cleaning of the detection box 20 and improve the cleanliness of the device.

[0076] The filtered gas and volatile substances enter the exhaust pipe two 22. Since the exhaust pipe two 22 is in sliding sealing fit with the inner wall of the insertion pipe 33, and the insertion pipe 33 is in rotating sealing fit with the sleeve pipe 32, the collection efficiency of the exhaust pipe two 22 for the gas and volatile substances can be improved.

[0077] Embodiment ten: Figures 1-11 The exhaust pipe 19 is rotatably connected with a rotating shaft two 37. A plurality of fan blades 38 connected with the rotating shaft two 37 are arranged in the exhaust pipe 19. The rotating shaft two 37 is connected with a gear two 39 at the bottom end below the exhaust pipe 19. The gear two 39 is in meshing connection with a gear three 40. The gear three 40 is connected with the bottom of a rotating shaft three 41. The top of the rotating shaft three 41 is rotatably connected with the exhaust pipe 19. The sidewall of the rotating shaft three 41 is connected with the end of a connecting rod two 42. The other end of the connecting rod two 42 is connected with the bottom end of a guide rod 43. The guide rod 43 is in sliding fit with a U-shaped groove 45 on the sidewall of a driving disc 44. The sidewall of the guide rod 43 is provided with a plurality of top ends of the U-shaped grooves 45 in circumferential array. The arc-shaped bottom ends of the U-shaped grooves 45 are close to a rotating shaft four 46 connected with the bottom of the sleeve pipe 32.

[0078] The principle and beneficial effects of the above scheme are:

[0079] When the gas flows in the exhaust pipe 19, the air pressure is applied to the fan blades 38, and the rotating shaft two 37 is driven to rotate clockwise to drive the gear two 39 to rotate synchronously. The gear three 40 connected with the gear two 39 is driven to rotate by the rotating shaft three 41 rotatably connected with the exhaust pipe 19. The connecting rod two 42 and the guide rod 43 are driven to rotate synchronously. Since the sidewall of the driving disc 44 is provided with a plurality of U-shaped grooves 45 in sliding fit with the guide rod 43, the guide rod 43 drives the driving disc 44 to rotate clockwise intermittently. The sleeve pipe 32 is driven to rotate intermittently by the rotating shaft four 46. Therefore, the filter screen 35 is disconnected with the exhaust pipe 19 after collecting the dust for a period of time. At this time, the other filter screen 35 is connected with the exhaust pipe 19. The blockage of the filter screen 35 caused by the dust can be avoided. The inaccuracy of the detection result can be avoided. The damage of the device caused by the increase of the air pressure in the exhaust pipe 19 can be avoided.

[0080] The gear two 39 drives the connecting rod two 42 to rotate through the gear three 40. Since the guide rod 43 connected with the connecting rod two 42 is in sliding fit with the U-shaped groove 45 of the driving disc 44, the driving disc 44 is driven to rotate intermittently. Since the diameter of the gear two 39 is smaller than that of the gear three 40, the rotating speed of the insertion pipe 33 is further reduced on the basis of the intermittent movement of the driving disc 44. The friction between the components can be reduced, the service life of the device can be prolonged, the maintenance frequency of the device can be reduced, and the filter screen 35 can be fully utilized to collect as much dust or impurities as possible.

[0081] Embodiment eleven: refer to Figures 1-11 , the top of the shaft two 37 is disposed above the exhaust pipe 19 is connected with gear four 48, the gear four 48 tooth and the ball top of the end of push rod 49 contact fit, push rod 49 and exhaust pipe 19 sliding connection, push rod 49 through the mounting ring 50 and the end of spring two 51 are connected, the other end of spring two 51 and the top of the exhaust pipe 19 are connected, the side wall of the sleeve 32 is connected with the end of the installation tube 52, the installation tube 52 is coaxially arranged with a filter hole 34, the inner wall of the installation tube 52 is slidingly connected with the slider 53, the end surface of the slider 53 is connected with the end of the rubber rod 54, the other end of the rubber rod 54 is arranged towards a filter screen 35, the push rod 49 and the installation tube 52 are slidingly connected, the other end of the push rod 49 disposed in the installation tube 52 is provided with a ball top two 55, the center of the ball top two 55 is arranged towards the side of the other end surface of the slider 53, the other end surface of the slider 53 is connected with the inner wall of the installation tube 52 through the spring three 56, and the bottom of the installation tube 52 is connected with the top end of the discharge pipe 47.

[0082] The principle and beneficial effects of the above scheme are:

[0083] When the shaft two 37 rotates clockwise, the gear four 48 rotates synchronously, the gear four 48 tooth and the ball top of the end of push rod 49 contact fit, push rod 49 moves to the direction of detection box 20, mounting ring 50 synchronous movement driven spring two 51 lengthening, when rotating over a tooth in the spring two 51 reset spring force push rod 49 reset and for the preparation of the contact with the gear four 48 next tooth, push rod 49 reciprocating motion, push rod 49 and installation tube 52 and exhaust pipe 19 sliding connection, synchronous make its other end ball top two 55 reciprocating motion, ball top two 55 to detection box 20 moves and contacts with the side of the other end surface of the slider 53, the slider 53 drives the rubber rod 54 to contact with a filter screen 35, the spring three 56 is lengthened, when the rubber rod 54 impacts the filter screen 35 to clean the dust on it, the dust and dust on the filter screen 35 are discharged through the discharge pipe 47 connected with the bottom of the installation tube 52, then due to the reset of the ball top two 55 driven by the push rod 49, the slider 53 drives the rubber rod 54 to reset under the reset spring force of the spring three 56, the rubber rod 54 is arranged to ensure that the filter screen 35 is impacted and cleaned of dust without damaging it; the arrangement of the push rod 49 in the mechanism greatly reduces the arrangement of power components, not only reduces the cost, but also improves the practicability of the device; the collection of dust on the filter screen 35 further increases the self-working ability of the device, and manual cleaning of the device can be avoided.

[0084] While embodiments of the application have been disclosed in connection with the above specification and drawings this description is not intended to limit the scope of the application and many modifications, enhancements, alternatives, and variations will become apparent to those skilled in the art from this disclosure. Accordingly, it is intended that the application not be limited to the described embodiments, but that it include all variations falling within the scope of the claims, and their equivalents.

Claims

1. A groundwater pollution remediation system, characterized by, Include: Platform (1), well body (2), liquid storage tank (3), drain pipe (4), liquid pump (5), detection mechanism, protection mechanism (6) and gas-liquid separator (18), the platform (1) is connected with well body (2), liquid storage tank (3), drain pipe (4), liquid pump (5), detection mechanism and gas-liquid separator (18), the bottom of well body (2) is placed below the platform (1), the top of drain pipe (4) is connected with the bottom of liquid storage tank (3), the output end of liquid pump (5) is connected with drain pipe (4), the other end of drain pipe (4) is connected with protection mechanism (6), protection mechanism (6) is placed in well body (2); The protection mechanism (6) comprises: a receiving tube (7), the other end of the drain pipe (4) is connected with the top end of the receiving tube (7) through the annular filter screen (8), the inner wall of the annular filter screen (8) is slidingly sealed with the side wall of the sealing tube (9), the top of the sealing tube (9) is arranged towards the drain pipe (4), the bottom of the sealing tube (9) is connected with the top of the baffle disc (10), the bottom of the baffle disc (10) is connected with the bottom wall of the receiving tube (7) through the spring (11).

2. The groundwater remediation system of claim 1, wherein, Two quartz sand filter layers and two bentonite sealing layers are longitudinally and spacedly arranged in the well body (2), the annular filter screen (8) is arranged in the bottommost quartz sand filter layer, the quartz sand filter layers and the bentonite sealing layers are alternately arranged, the quartz sand filter layer is arranged below the bentonite sealing layer, a plurality of through holes (12) are formed in the end of the side wall of the well body (2), the other end of the through hole (12) is formed on the inner wall of the well body (2) and is arranged towards the quartz sand filter layer.

3. The groundwater remediation system of claim 2, wherein, The platform (1) is connected with an aeration pipe (13) and a suction pipe (14), the aeration pipe (13) is connected with a gas pump (15), the end of the aeration pipe (13) away from the top surface of the platform (1) is connected with an air filter tank (16), the other end of the aeration pipe (13) is arranged in the same quartz sand filter layer as the annular filter screen (8).

4. The groundwater remediation system of claim 3, wherein, The suction pipe (14) is connected with a vacuum pump (17), the gas pump (15) and the vacuum pump (17) are connected with the platform (1), the end of the suction pipe (14) is arranged in another quartz sand filter layer, and the end of the suction pipe (14) is arranged above the other end of the aeration pipe (13).

5. The groundwater remediation system of claim 4, wherein, The other end of the suction pipe (14) is connected with one side of the gas-liquid separator (18), the gas-liquid separator (18) is connected with the top of the platform (1), the other side of the gas-liquid separator (18) is connected with the end of the exhaust pipe (19), the other end of the exhaust pipe (19) is connected with the end of the detection box (20) in the detection mechanism, and the gas detection element is connected in the detection box (20).

6. The groundwater remediation system of claim 5, wherein, The other end of the detection box (20) is connected with the end of the release pipe (21), the release pipe (21) is provided with a one-way valve, and the other end of the release pipe (21) is arranged towards the top of the platform (1).

7. A groundwater remediation system according to claim 6, wherein, The other end of the exhaust pipe (19) is connected with the end of the exhaust pipe two (22) through a dust removal assembly, the other end of the exhaust pipe two (22) is slidingly connected with a flange (23), the end surface of the flange (23) is connected with the end of a plurality of insertion rods (24), the insertion rods (24) are insertedly connected with a flange two (25), the flange two (25) is connected with the end of an exhaust pipe three (26), the other end of the exhaust pipe two (22) is arranged adjacent to the end of the exhaust pipe three (26), the other end of the exhaust pipe three (26) is connected with the end of a detection box (20), the flange (23) is in contact with the flange two (25), the other end surface of the flange (23) away from the insertion rods (24) is connected with a rack (27), the rack (27) is in meshing connection with a gear (28), the gear (28) is rotatably connected with the exhaust pipe two (22) through a rotating shaft (29).

8. The groundwater remediation system of claim 7, wherein, The rotating shaft (29) is connected with a worm wheel (30), the worm wheel (30) is in meshing connection with a worm (31), and the worm (31) is rotatably connected with the exhaust pipe two (22).

9. The groundwater remediation system of claim 8, wherein, The dust removal assembly comprises a sleeve (32), the other end of the exhaust pipe (19) is connected with the side wall of the sleeve (32), the sleeve (32) is rotatably and sealingly connected with a pipe (33) in the sleeve (32), a plurality of filter holes (34) are arranged in the side wall of the pipe (33) in a circumferential array, the filter holes (34) are concentrically arranged with the exhaust pipe (19), one filter screen (35) is connected in each filter hole (34), the exhaust pipe two (22) is rotatably connected with the pipe (33), the other end of the exhaust pipe two (22) arranged in the pipe (33) is arranged towards the other end of the exhaust pipe (19) and is in sliding sealing connection with the inner wall of the pipe (33), and the bottom of the exhaust pipe two (22) is connected with the side wall of the sleeve (32) through a connecting rod (36).

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