Curtain system for controlling exposed lava groundwater pollution

Abstract

The invention discloses a curtain system for exposed lava groundwater pollution prevention and control, and belongs to the technical field of sewage treatment. The curtain system comprises a ground hole structure and a curtain blocking mechanism arranged in the ground hole structure; the ground hole structure comprises a plurality of pollution blocking containing holes which are drilled underground and arranged in parallel, and every two adjacent pollution blocking containing holes communicate with each other through adjacent communicating open grooves. The curtain blocking mechanism comprises a curtain blocking single pipe fixed in the pollution blocking containing hole. The side wall of each curtain blocking single pipe is provided with a plurality of blocking plate connecting grooves communicating inside and outside, curtain blocking plates are slidably connected into the blocking plate connecting grooves, and the outer side edges of the curtain blocking plates are connected with the outer side walls of the adjacent curtain blocking single pipes in a jacking contact and sealing mode. The curtain system has efficient anti-seepage performance and can effectively prevent a pollution source from diffusing into underground water.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a curtain system for preventing and controlling pollution of exposed lava groundwater. Background Art

[0002] Exposed lava groundwater pollution refers to the phenomenon that in areas with exposed lava as the main geological structure, groundwater bodies are invaded by harmful substances, causing the water quality to deteriorate and no longer meet the corresponding use standards or ecological environment requirements. These harmful substances include heavy metals (such as mercury, cadmium, lead, etc.), organic pollutants (such as petroleum substances, pesticides, polychlorinated biphenyls, etc.), inorganic pollutants (such as nitrates, sulfates, etc.) and radioactive substances; mining is one of the common industrial pollution sources in exposed lava areas. In the process of ore mining, a large amount of waste slag and wastewater containing heavy metals will be produced. The geological structure characteristics of exposed lava make the groundwater pollution spread relatively quickly. There are a large number of pores and cracks in the lava, and these channels provide convenient conditions for the migration of pollutants. Once pollutants enter the groundwater, they will spread rapidly along these pores and cracks, polluting a larger range of groundwater bodies in a relatively short period of time;

[0003] Traditional treatment methods (such as simple sewage interception, water extraction and purification) are not effective. At the same time, since pollutants may exist in various forms in the complex lava geological structure, it is difficult to completely remove them. Summary of the invention

[0004] The object of the present invention is to provide a curtain system for preventing and controlling the pollution of exposed lava groundwater, which can effectively block the further spread of the pollution source to the groundwater.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A curtain system for preventing and controlling exposed lava groundwater pollution, comprising a ground hole structure and a curtain barrier mechanism arranged in the ground hole structure;

[0007] The ground hole structure includes a plurality of pollution barrier accommodating holes drilled underground and arranged in parallel with each other, and two adjacent pollution barrier accommodating holes are connected through adjacent connecting grooves;

[0008] The curtain barrier mechanism includes a curtain barrier single tube fixed in the pollution barrier receiving hole;

[0009] The side wall of the curtain barrier single tube is provided with a plurality of barrier plate connection grooves which are communicated with each other inside and outside, the barrier plate connection groove is slidably connected with the curtain barrier plate, and the outer side edge of the curtain barrier plate is sealedly connected with the outer side wall of the adjacent curtain barrier single tube by top pressure contact;

[0010] A plurality of curtain pipe partition plates arranged in parallel with each other are fixed in the curtain barrier single pipe, and a curtain isolation cavity is formed between two adjacent curtain pipe partition plates;

[0011] The inner side wall of the curtain barrier single tube is fixed with a plurality of grouting containing tube shells extending parallel to its axis, the side wall of the curtain barrier single tube is provided with a plurality of grouting external discharge holes connected with the interior of the grouting containing tube shells, a grouting delivery pipe is fixed in the grouting containing tube shells, and a grouting nozzle connected with the grouting delivery pipe is fixed in the grouting external discharge holes.

[0012] Preferably, two adjacent curtain barrier plates are staggered and overlapped in a direction parallel to the axis of the curtain barrier single tube, and the overlapping area between the two adjacent curtain barrier plates is 15-30%.

[0013] Description: Multiple curtain barrier panels arranged in an interlaced and overlapping manner can improve the sealing performance and effectively prevent further penetration of pollutants.

[0014] Preferably, the outer side wall of the curtain barrier single tube is fixed with a plurality of sealing top press-fit strips extending in a direction parallel to its axis, the side surface of the sealing top press-fit strip is provided with a sealing fitting groove, and a sealing fitting rubber strip is fixed in the sealing fitting groove.

[0015] Description: The sealing groove and the sealing strip are provided to form a good sealing condition between the outer wall of the curtain barrier single tube and the outer edge of the curtain barrier plate.

[0016] Preferably, the outer side wall of the curtain barrier single tube has a plurality of grouting guide grooves extending spirally around its axis.

[0017] Description: Under the guidance of the grouting diversion groove, the injected "slurry" can be more evenly dispersed and injected into the rock gaps around the curtain barrier single tube.

[0018] Preferably, the curtain baffle plate is connected to the curtain baffle tube via a pre-ejection mechanism, the pre-ejection mechanism comprises a plurality of pre-ejection fixed tubes fixed on the curtain tube partition plate, a pre-ejection sliding tube is slidably connected to the outer side of the pre-ejection fixed tube, and the outer end of the pre-ejection sliding tube is fixedly connected to one end of the curtain baffle plate inside the curtain baffle tube;

[0019] A spring push rod is provided between the inner end of the pre-ejection fixed cylinder and the inner end of the pre-ejection sliding cylinder in a press-fit manner.

[0020] Description: The pre-ejection mechanism can provide initial energy for the extension of each curtain barrier plate, and provide a stable top pressure support force for the curtain barrier plate.

[0021] Preferably, a pull-out release mechanism is provided on the curtain tube partition plate, the pull-out release mechanism comprises a release control shaft connection hole provided on the curtain tube partition plate and extending radially through the pre-ejection sliding cylinder, a release control shaft is threadedly connected to the release control shaft connection hole, an outer side surface of the pre-ejection sliding cylinder has a release snap-fitting hole coaxially arranged with the release control shaft connection hole, one end of the release control shaft is snap-fitted in the release snap-fitting hole;

[0022] A pull-out release handle is fixed to one end of the release control shaft away from the release snap-fitting hole;

[0023] A torsion spring is arranged between the release control shaft and the curtain pipe partition plate, the torsion spring is sleeved on the release control shaft, one end of the torsion spring is fixedly connected to the release control shaft, and the other end of the torsion spring is fixedly connected to the curtain pipe partition plate;

[0024] A pull-out fixed groove tube is fixed on the curtain tube partition plate and extends parallel to the axis of the curtain barrier single tube. The pull-out fixed groove tube is located on the side wall of the pull-out release handle and has a handle deflection through groove that communicates inside and outside. A pull-out release control tube is slidably connected in the pull-out fixed groove tube, and the outer end of the pull-out release handle presses and contacts the outer side wall of the pull-out release control tube.

[0025] Description: The ingenious mechanical structure of the pull-out release mechanism can conveniently and quickly control the release process of each curtain barrier plate, avoiding the use of a complex electrical control system, which is less prone to malfunction.

[0026] Preferably, a baffle plate locking mechanism is provided on the curtain tube partition plate, and the baffle plate locking mechanism includes a locking connecting column fixed to the outer end of the pre-ejection sliding cylinder, a locking connecting cylinder coaxially arranged with the locking connecting column is fixed on the curtain tube partition plate, one end of the locking connecting cylinder is open and the open end faces the locking connecting column, a plurality of locking pin shaft receiving cylinders extending radially thereof are fixed to the outer side of the locking connecting cylinder, a locking pin shaft is slidably connected in the locking pin shaft receiving cylinder, and a locking driving spring is provided between the locking pin shaft and the inner end of the locking pin shaft receiving cylinder for top press fit;

[0027] A locking pin through hole communicating with the locking pin shaft accommodating cylinder is provided on the side wall of the locking connection cylinder;

[0028] The outer side wall of the locking connection column is provided with a locking pin clamping ring groove, and one end of the locking connection column close to the locking connection cylinder is a conical tip structure.

[0029] Description: The baffle plate locking mechanism can limit and lock the position of the curtain baffle plate to prevent the curtain baffle plate from loosening due to failure of the spring top rod, thereby affecting the sealing performance between the curtain baffle plates.

[0030] Preferably, a barrier plate adjacent sealing mechanism is provided on the curtain barrier plate, the barrier plate adjacent sealing mechanism comprises an adjacent sealing conveying pipe fixed on the curtain barrier plate, a through hole for the adjacent sealing conveying pipe is provided on the side wall of the curtain barrier single pipe, and the adjacent sealing conveying pipe is slidably connected in the through hole for the adjacent sealing conveying pipe;

[0031] The adjacent sealing conveying pipe is arranged near the position where two adjacent curtain baffle plates overlap each other;

[0032] The side wall of the adjacent sealing delivery pipe is provided with a plurality of adjacent sealing agent discharge holes which are communicated with each other inside and outside;

[0033] One end of the adjacent sealing delivery pipe inside the curtain barrier single pipe is connected to a adjacent sealing agent storage tank, an output pipe of the adjacent sealing agent storage tank is provided with an adjacent sealing control valve, and a control valve top rod is fixed on the inner wall of the curtain barrier single pipe.

[0034] Description: Multiple curtain barrier plates arranged in the same curtain isolation cavity form a group. In each group of curtain barrier plates, two adjacent curtain barrier plates are further sealed by a barrier plate adjacent sealing mechanism, so that good sealing conditions are formed between the two adjacent curtain barrier plates.

[0035] Preferably, a pollution monitoring mechanism is provided in the curtain barrier single tube, the pollution monitoring mechanism comprises a pollution monitoring accommodating tube fixed on the inner side wall of the curtain barrier single tube and extending radially thereof, a pollution monitoring through hole connected to the pollution monitoring accommodating tube is provided on the side wall of the curtain barrier single tube, a monitoring airtight cover plate is fixed in the pollution monitoring through hole, an opening and closing matching plate connecting shaft coaxial with the pollution monitoring accommodating tube is fixed on the inner side of the monitoring airtight cover plate, and an opening and closing matching cover plate is rotatably connected to the opening and closing matching plate connecting shaft;

[0036] The monitoring sealed cover plate is provided with a plurality of first monitoring through holes, and the opening and closing matching cover plate is provided with a plurality of second monitoring through holes;

[0037] A plurality of monitoring extension fixed cylinders are fixed in the pollution monitoring receiving cylinder, a monitoring extension sliding cylinder is slidably connected in the monitoring extension fixed cylinder, a sensor fixing column is fixed at the outer end of the monitoring extension sliding cylinder, a sensor receiving hole is provided on the sensor fixing column, and a pollution monitoring sensor is fixed in the sensor receiving hole;

[0038] A monitoring extension driving rod for driving the monitoring extension sliding cylinder to move is arranged in the monitoring extension fixed cylinder.

[0039] Note: Use pollution monitoring agencies to monitor the pollutant concentration near the curtain system to ensure that the barrier effect of the curtain system is effective.

[0040] Preferably, a negative pressure siphon mechanism is provided at the tail end of the curtain barrier single tube, the negative pressure siphon mechanism comprises a negative pressure siphon receiving tube fixed at the tail end of the curtain barrier single tube, a negative pressure siphon collecting ring shell is fixed to the inner side wall of the negative pressure siphon receiving tube, and a plurality of collecting through holes connected to the inside of the negative pressure siphon collecting ring shell are provided on the side wall of the negative pressure siphon receiving tube;

[0041] A collecting and discharging pipe connected to the interior of the negative pressure siphon collecting ring shell is fixed on the negative pressure siphon collecting ring shell, and a negative pressure connecting tank connected to the other end of the collecting and discharging pipe is fixed on the ground. A negative pressure vacuum pump is connected to the negative pressure connecting tank, and the input end of the negative pressure vacuum pump is connected to the interior of the negative pressure connecting tank through a pipeline.

[0042] Note: Due to the strong barrier effect of the curtain system, some pollutants will infiltrate and flow along the slope of the curtain system, forming a local high-concentration area near the bottom of the curtain system. The high-concentration area is cleaned regularly using a negative pressure siphon mechanism.

[0043] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0044] 1. The present invention has a reasonable structural design and high-efficiency anti-seepage performance. It adopts cement-water glass slurry anti-seepage material with extremely low permeability coefficient. After solidification, the cement-water glass slurry will form a continuous high-strength, low-permeability anti-seepage body. The anti-seepage body, multiple curtain barrier tubes and multiple curtain barrier plates together form the main structure of the curtain system, which can effectively block the pollution source from spreading into the groundwater;

[0045] 2. The multiple curtain barrier panels of the present invention are closely spliced, and multiple groups of curtain barrier panels are provided to form a multi-layer protection structure, which can effectively prevent leakage;

[0046] 3. The present invention has good stability and adaptability. The geological structure of exposed lava is complex, with high porosity and crack development. The curtain system can adapt well to this geological environment. Its supporting structure can be firmly anchored in the lava and can effectively resist the deformation of the lava itself and external loads.

[0047] 4. The curtain system of the present invention has effective monitoring capabilities. A plurality of pollution monitoring mechanisms are arranged on the outer side of the curtain system. These pollution monitoring mechanisms can monitor the existence of various pollutants and their concentration changes, and promptly detect whether the pollutants have broken through the curtain. A negative pressure siphon mechanism is also arranged to promptly clean up the high-concentration pollutants deposited at the bottom of the curtain system. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a front view of the curtain system of the present invention;

[0049] Figure 2is a schematic diagram of the cross-sectional structure of the curtain system of the present invention;

[0050] Figure 3 is a schematic cross-sectional structure diagram of the curtain barrier mechanism of the present invention;

[0051] Figure 4 This is a schematic diagram of the structure of the curtain barrier single tube of the present invention;

[0052] Figure 5 It is a structural schematic diagram of the grouting guide trough of the present invention;

[0053] Figure 6 is a schematic diagram of the cross-sectional structure of the sealing top press-fit strip of the present invention;

[0054] Figure 7 is a schematic cross-sectional structure diagram of the pull-release mechanism of the present invention;

[0055] Figure 8 is a bottom view of the present invention;

[0056] Fig. 9 is a schematic cross-sectional structural diagram of the barrier plate adjacent sealing mechanism of the present invention;

[0057] Fig.10 is a schematic cross-sectional structural diagram of the blocking plate locking mechanism of the present invention;

[0058] Fig.11 It is a structural schematic diagram of the pollution monitoring mechanism of the present invention;

[0059] Fig.12 It is a structural schematic diagram of the negative pressure siphon mechanism of the present invention.

[0060] In the figure, 10-ground hole structure, 11-pollution barrier receiving hole, 12-adjacent connecting slot, 20-curtain barrier mechanism, 201-curtain isolation cavity, 21-curtain barrier single tube, 210-curtain tube partition plate, 211-sealing top pressure fitting strip, 2110-sealing fitting groove, 2111-sealing fitting rubber strip, 212-grouting guide groove, 22-curtain barrier plate, 220-barrier plate connecting groove, 23-grouting delivery pipe, 230-grouting nozzle, 231-grouting containing pipe shell, 232-grouting external discharge hole, 31-pre-ejection mechanism, 311-pre-ejection fixed cylinder, 312-pre-ejection sliding cylinder, 313-spring top rod, 32-pull-release mechanism, 320-release snap-fitting hole, 321-release control shaft connecting hole, 322-release control shaft, 3220-torsion spring, 323-pull-release handle, 324-pull-fixed groove tube, 3240-handle deflection groove, 325-pull-release control tube, 33-blocking plate adjacent sealing mechanism, 330-adjacent sealing delivery pipe through hole, 331-adjacent sealing delivery pipe, 33 10-adjacent sealing agent discharge hole, 332-adjacent sealing agent storage tank, 3320-adjacent sealing control valve, 333-control valve push rod, 34-blocking plate locking mechanism, 341-locking connecting column, 3410-locking pin clamping ring groove, 342-locking connecting cylinder, 343-locking pin shaft receiving cylinder, 3430-locking pin through hole, 344-locking pin shaft, 345-locking drive spring, 41-pollution monitoring mechanism, 410-pollution monitoring through hole, 411-pollution monitoring receiving cylinder, 412-monitoring closed cover plate, 4120- The first monitoring through hole, 413-opening and closing matching cover plate, 4130-second monitoring through hole, 414-monitoring extended fixed cylinder, 415-monitoring extended sliding cylinder, 416-sensor fixed column, 4160-sensor accommodating hole, 417-pollution monitoring sensor, 418-monitoring extended driving rod, 42-negative pressure siphon mechanism, 421-negative pressure siphon accommodating tube, 4210-collecting through hole, 422-negative pressure siphon collecting ring shell, 423-collecting external discharge delivery pipe, 424-negative pressure connecting tank, 425-negative pressure exhaust fan. DETAILED DESCRIPTION

[0061] Combine the following Figure 1-Figure 12 The present invention is described in detail. For the convenience of description, the orientations mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are consistent with the up, down, left, right, front, and back directions of the projection relationship of each main view or the structural schematic diagram itself. The cross-sectional structural schematic diagrams in the figures are all based on the plane perpendicular to the axis of the curtain barrier single tube as the cross section.

[0062] Example 1: A curtain system for preventing and controlling groundwater pollution in exposed lava rock, such as Figure 1 As shown, it includes a ground hole structure 10 and a curtain barrier mechanism 20 arranged in the ground hole structure 10;

[0063] like Figure 2 As shown, the ground hole structure 10 includes a plurality of pollution barrier accommodating holes 11 drilled underground and arranged in parallel with each other, and two adjacent pollution barrier accommodating holes 11 are connected through adjacent connecting grooves 12;

[0064] like Figure 3 As shown, the curtain barrier mechanism 20 includes a curtain barrier single tube 21 fixed in the pollution barrier receiving hole 11;

[0065] like Figure 3 As shown, the side wall of the curtain barrier single tube 21 is provided with a plurality of barrier plate connection grooves 220 communicating with each other inside and outside, and the barrier plate connection grooves 220 are slidably connected with curtain barrier plates 22, and the outer side edges of the curtain barrier plates 22 are sealedly connected with the outer side walls of the adjacent curtain barrier single tubes 21 by top pressure contact;

[0066] A plurality of curtain pipe partition plates 210 arranged in parallel with each other are fixed in the curtain barrier single pipe 21, and a curtain isolation cavity 201 is formed between two adjacent curtain pipe partition plates 210;

[0067] A plurality of grouting containing tube shells 231 extending parallel to the axis thereof are fixed to the inner side wall of the curtain barrier single tube 21, a plurality of grouting external discharge holes 232 connected to the interior of the grouting containing tube shells 231 are provided on the side wall of the curtain barrier single tube 21, a grouting delivery tube 23 is fixed in the grouting containing tube shells 231, and a grouting nozzle 230 connected to the grouting delivery tube 23 is fixed in the grouting external discharge holes 232.

[0068] like Figure 4 As shown, two adjacent curtain baffles 22 are staggered and overlapped along a direction parallel to the axis of the curtain baffle single tube 21, and the overlapping area between the two adjacent curtain baffles 22 is 15%.

[0069] like Figure 3 As shown, the curtain baffle plate 22 is connected to the curtain baffle single tube 21 through a pre-ejection mechanism 31, the pre-ejection mechanism 31 includes a plurality of pre-ejection fixed cylinders 311 fixed on the curtain tube partition plate 210, the axis of the pre-ejection fixed cylinder 311 is arranged to extend parallel to the through direction of the baffle plate connecting groove 220, the outer side of the pre-ejection fixed cylinder 311 is slidably connected to a pre-ejection sliding cylinder 312, and the outer end of the pre-ejection sliding cylinder 312 is fixedly connected to one end of the curtain baffle plate 22 inside the curtain baffle single tube 21;

[0070] A spring push rod 313 is press-fitted between the inner end of the pre-ejection fixed cylinder 311 and the inner end of the pre-ejection sliding cylinder 312 . The spring push rod 313 is a spring push rod of the prior art.

[0071] like Figure 3 As shown, the curtain tube partition plate 210 is provided with a pull-out release mechanism 32, as shown in FIG. Figure 7 , Figure 8 As shown, the pull-release mechanism 32 includes a release control shaft connection hole 321 which is arranged on the curtain tube partition plate 210 and extends radially through the pre-ejection sliding cylinder 312. A release control shaft 322 is threadedly connected to the release control shaft connection hole 321. The outer side surface of the pre-ejection sliding cylinder 312 has a release snap-fitting hole 320 which is coaxially arranged with the release control shaft connection hole 321. One end of the release control shaft 322 is snap-fitted in the release snap-fitting hole 320.

[0072] A pull-out release handle 323 is fixed to one end of the release control shaft 322 away from the release engaging hole 320;

[0073] A torsion spring 3220 is provided between the release control shaft 322 and the curtain pipe partition plate 210. The torsion spring 3220 is sleeved on the release control shaft 322. One end of the torsion spring 3220 is fixedly connected to the release control shaft 322, and the other end of the torsion spring 3220 is fixedly connected to the curtain pipe partition plate 210.

[0074] A pull-out fixed groove tube 324 extending parallel to the axis of the curtain barrier single tube 21 is fixed on the curtain tube partition plate 210, and the extension direction of the pull-out fixed groove tube 324 is perpendicular to the axial direction of the release control shaft 322. The pull-out fixed groove tube 324 has a handle deflection groove 3240 communicating inside and outside on the side wall at the pull-out release handle 323. A pull-out release control tube 325 is slidably connected inside the pull-out fixed groove tube 324, and the outer end of the pull-out release handle 323 presses against the outer side wall of the pull-out release control tube 325.

[0075] like Figure 3 As shown, the curtain tube partition plate 210 is provided with a blocking plate locking mechanism 34, as shown in FIG. Fig. 9 As shown, the baffle plate locking mechanism 34 includes a locking connection column 341 fixed to the outer end of the pre-ejection sliding cylinder 312, the axis of the locking connection column 341 is extended and arranged parallel to the axis of the pre-ejection sliding cylinder 312, a locking connection cylinder 342 coaxially arranged with the locking connection column 341 is fixed on the curtain tube partition plate 210, one end of the locking connection cylinder 342 is open and the open end faces the locking connection column 341, a plurality of locking pin shaft receiving cylinders 343 extending radially thereof are fixed to the outer side of the locking connection cylinder 342, a locking pin shaft 344 is slidably connected in the locking pin shaft receiving cylinder 343, and a locking drive spring 345 is provided between the locking pin shaft 344 and the inner end of the locking pin shaft receiving cylinder 343, which is press-fitted;

[0076] The locking connection cylinder 342 has a locking pin through hole 3430 on its side wall which is connected to the locking pin shaft receiving cylinder 343;

[0077] The outer side wall of the locking connection column 341 has a locking pin clamping ring groove 3410 , and one end of the locking connection column 341 close to the locking connection tube 342 is a conical tip structure.

[0078] Embodiment 2: Based on embodiment 1, Figure 3 As shown, the outer side wall of the curtain barrier single tube 21 is fixed with a plurality of sealing top press-fit strips 211 extending in a direction parallel to the axis thereof, as shown in FIG. Figure 6 As shown, a sealing fitting groove 2110 is provided on the side of the sealing top pressure fitting strip 211 , and a sealing fitting rubber strip 2111 is fixed in the sealing fitting groove 2110 .

[0079] Embodiment 3: Based on embodiment 2, Figure 5 As shown, the outer side wall of the curtain barrier single tube 21 has a plurality of grouting guide grooves 212 extending spirally around its axis.

[0080] Embodiment 4: Based on embodiment 3, Figure 8 As shown, the curtain baffle plate 22 is provided with a baffle plate adjacent sealing mechanism 33, the baffle plate adjacent sealing mechanism 33 comprises an adjacent sealing conveying pipe 331 fixed on the curtain baffle plate 22, and a through hole 330 for the adjacent sealing conveying pipe is provided on the side wall of the curtain baffle single tube 21, the axis of the adjacent sealing conveying pipe through hole 330 is extended and arranged parallel to the through direction of the baffle plate connecting groove 220, and the adjacent sealing conveying pipe 331 is slidably connected in the adjacent sealing conveying pipe through hole 330;

[0081] The adjacent sealing conveying pipe 331 is arranged near the position where two adjacent curtain baffle plates 22 overlap each other;

[0082] The side wall of the adjacent sealing delivery pipe 331 is provided with a plurality of adjacent sealing agent discharge holes 3310 communicating with each other inside and outside;

[0083] One end of the adjacent sealing delivery pipe 331 inside the curtain barrier single tube 21 is connected to a adjacent sealing agent storage tank 332, and the output pipe of the adjacent sealing agent storage tank 332 is provided with an adjacent sealing control valve 3320, which is a wrench-type valve in the prior art, and a control valve top rod 333 is fixed on the inner wall of the curtain barrier single tube 21.

[0084] Embodiment 5: Based on Embodiment 4, a pollution monitoring mechanism 41 is provided in the curtain barrier single tube 21, such as Fig.11As shown, the pollution monitoring mechanism 41 includes a pollution monitoring accommodating cylinder 411 fixed on the inner side wall of the curtain barrier single tube 21 and extending radially thereof, and a pollution monitoring through hole 410 connected to the pollution monitoring accommodating cylinder 411 is provided on the side wall of the curtain barrier single tube 21, a monitoring airtight cover plate 412 is fixed in the pollution monitoring through hole 410, an opening and closing matching plate connecting shaft 4121 coaxial with the pollution monitoring accommodating cylinder 411 is fixed inside the monitoring airtight cover plate 412, and an opening and closing matching cover plate 413 is rotatably connected to the opening and closing matching plate connecting shaft 4121;

[0085] The opening and closing matching cover plate 413 is driven by a prior art servo motor fixed on the opening and closing matching plate connecting shaft 4121 through gear transmission to rotate around the axis of the opening and closing matching plate connecting shaft 4121;

[0086] The monitoring sealed cover plate 412 has a plurality of first monitoring through holes 4120, and the opening and closing matching cover plate 413 has a plurality of second monitoring through holes 4130;

[0087] A plurality of monitoring extension fixed cylinders 414 are fixed in the pollution monitoring receiving cylinder 411, a monitoring extension sliding cylinder 415 is slidably connected in the monitoring extension fixed cylinder 414, a sensor fixing column 416 is fixed at the outer end of the monitoring extension sliding cylinder 415, a sensor receiving hole 4160 is provided on the sensor fixing column 416, and a pollution monitoring sensor 417 is fixed in the sensor receiving hole 4160;

[0088] The pollution monitoring sensor 417 includes a heavy metal ion sensor and an organic pollutant monitoring sensor;

[0089] Heavy metal ion sensors include mercury ion sensors, cadmium ion sensors, lead ion sensors, ammonia nitrogen sensors, nitrate sensors, sulfate sensors, and chloride ion sensors in the prior art;

[0090] Organic pollutant monitoring sensors include existing benzene sensors, halogenated hydrocarbon sensors, organic pesticide sensors, polycyclic aromatic hydrocarbon sensors, and phthalate sensors;

[0091] A monitoring extension driving rod 418 for driving the monitoring extension sliding cylinder 415 to move is provided in the monitoring extension fixed cylinder 414. The monitoring extension driving rod 418 is an electrically controlled telescopic rod driven by a servo motor in the prior art. The outer rod end of the monitoring extension driving rod 418 is fixedly connected to the inner end of the monitoring extension fixed cylinder 414, and the inner rod end of the monitoring extension driving rod 418 is fixedly connected to the monitoring extension sliding cylinder 415.

[0092] Embodiment 6: Based on embodiment 5, Fig.12As shown, a negative pressure siphon mechanism 42 is provided at the tail end of the curtain barrier single tube 21, and the negative pressure siphon mechanism 42 includes a negative pressure siphon receiving tube 421 fixed at the tail end of the curtain barrier single tube 21, and a negative pressure siphon collecting ring shell 422 is fixed to the inner side wall of the negative pressure siphon receiving tube 421, and a plurality of collecting through holes 4210 connected to the inside of the negative pressure siphon collecting ring shell 422 are provided on the side wall of the negative pressure siphon receiving tube 421;

[0093] A collecting and discharging pipe 423 connected to the interior of the negative pressure siphon collecting ring shell 422 is fixed thereon, and a negative pressure connecting tank 424 connected to the other end of the collecting and discharging pipe 423 is fixed on the ground. A negative pressure vacuum pump 425 is connected to the negative pressure connecting tank 424, and the input end of the negative pressure vacuum pump 425 is connected to the interior of the negative pressure connecting tank 424 through a pipeline.

[0094] Embodiment 7: The difference from Embodiment 6 is that the overlapping area between two adjacent curtain blocking plates 22 is 20%.

[0095] Embodiment 8: The difference from Embodiment 6 is that the overlapping area between two adjacent curtain blocking plates 22 is 25%.

[0096] Embodiment 9: The difference from Embodiment 6 is that the overlapping area between two adjacent curtain blocking plates 22 is 30%.

[0097] In the actual application of the present invention, the entire curtain system is arranged downstream of the diffusion path of the pollution source, and the angle between the barrier surface formed by the curtain system and the horizontal plane of the soil surface is 45°. The specific construction process is as follows:

[0098] A pollution barrier receiving hole 11 extending downwardly and obliquely is drilled on the ground, and a connecting groove 12 is cut between two adjacent pollution barrier receiving holes 11 using a cutting machine of the prior art, so that the two adjacent pollution barrier receiving holes 11 are connected;

[0099] Insert the curtain barrier single tube 21 into the pollution barrier accommodating hole 11, and each curtain barrier plate 22 on the curtain barrier single tube 21 is located adjacent to the connecting slot 12;

[0100] In the initial state, the spring top rod 313 is in a compressed state, and the curtain blocking plate 22 is in a retracted state inside the curtain blocking single tube 21;

[0101] In the initial state, one end of the release control shaft 322 close to the pre-ejection sliding cylinder 312 is snap-fitted in the release snap-fitting fitting hole 320;

[0102] When the curtain barrier single tube 21 is inserted into the pollution barrier accommodating hole 11 and is in place, the release control tube 325 is pulled out. After the blockage of the release control tube 325 is lost, the release control shaft 322 is driven by the torsion spring 3220 to rotate around the axis of the release control shaft connecting hole 321. Since the release control shaft 322 is threadedly connected to the release control shaft connecting hole 321, the release control shaft 322 rotates around the axis of the release control shaft connecting hole 321 and also moves along the axis of the release control shaft connecting hole 321, so that the release control shaft 322 moves along the axis of the release control shaft connecting hole 321 and moves away from the pre-ejection sliding cylinder 312, and finally the end of the release control shaft 322 close to the pre-ejection sliding cylinder 312 is disengaged from the release card fitting hole 320.

[0103] Then, driven by the spring push rod 313, the pre-ejection sliding cylinder 312 drives the curtain blocking plate 22 to move along the axis of the pre-ejection fixed cylinder 311, so that the curtain blocking plate 22 extends from the blocking plate connecting groove 220, and the outer edge of the curtain blocking plate 22 is pressed against the sealing press-fit strip 211 on the outer side of the adjacent curtain blocking single tube 21;

[0104] When the spring push rod 313 drives the pre-ejection sliding cylinder 312 to move along the axis of the pre-ejection fixed cylinder 311, the blocking plate locking mechanism 34 is used to limit and lock the position of the curtain blocking plate 22. The pre-ejection sliding cylinder 312 moves along the axis of the pre-ejection fixed cylinder 311 and approaches the locking connecting cylinder 342, so that the locking connecting column 341 is inserted into the locking connecting cylinder 342. When the locking pin shaft 344 is aligned with the locking pin clamping ring groove 3410 along the radial direction of the locking connecting cylinder 342, under the drive of the locking driving spring 345, the locking pin shaft 344 moves along the axis of the locking pin shaft accommodating cylinder 343 and approaches the locking connecting column 341, so that the end of the locking pin shaft 344 is clamped in the locking pin clamping ring groove 3410, thereby limiting and locking the position of the pre-ejection sliding cylinder 312 together with the curtain blocking plate 22;

[0105] During this process, when the conical tip of the locking connecting column 341 passes through the locking pin 344, the conical structure can force the locking pin 344 to move along the axis of the locking pin accommodating cylinder 343 and away from the locking connecting column 341, so that the locking pin 344 temporarily retracts into the locking pin accommodating cylinder 343;

[0106] A plurality of curtain barrier plates 22 disposed in the same curtain isolation cavity 201 form a group, and the two adjacent curtain barrier plates 22 in each group of curtain barrier plates 22 are further sealed by a barrier plate adjacent sealing mechanism 33;

[0107] In the initial state, the adjacent sealing control valve 3320 is in a closed state, and the sealant stored in the adjacent sealing agent storage tank 332 is isolated from the adjacent sealing delivery pipe 331;

[0108] During the extension of the curtain baffle plate 22, the curtain baffle plate 22 will drive the adjacent sealing delivery pipe 331 to move along the axis of the adjacent sealing delivery pipe through hole 330, so that the adjacent sealing delivery pipe 331 passes through the adjacent sealing delivery pipe through hole 330 and extends to the outside of the curtain baffle single pipe 21. During this process, the adjacent sealing control valve 3320 will gradually approach the control valve push rod 333, and the handle of the adjacent sealing control valve 3320 and the control valve push rod 333 will move relative to each other, and the control valve push rod 333 can push the adjacent sealing control valve 3320 to move relative to each other. The handle of 320 is rotated, thereby making the adjacent sealing control valve 3320 in an open state. The adjacent sealing agent storage tank 332 stores a sealant. After the adjacent sealing control valve 3320 is opened, the sealant in the adjacent sealing agent storage tank 332 is transported into the adjacent sealing transport pipe 331 and then discharged from each adjacent sealing agent discharge hole 3310. The sealant used in this embodiment is a polyurethane foaming stock solution in the prior art, which can seal the gap between two adjacent curtain baffle plates 22 in each set of curtain baffle plates 22;

[0109] Finally, the cement-water glass slurry of the prior art is pumped into each grouting delivery pipe 23 as an anti-seepage material through a delivery pump of the prior art, and the cement-water glass slurry is discharged through each grouting nozzle 230, and the cement-water glass slurry is injected into the rock gap around the outer wall of the curtain barrier single tube 21, and under the diversion effect of the grouting guide groove 212, the cement-water glass slurry can be injected into the rock gap around the curtain barrier single tube 21 in a more uniform and dispersed manner;

[0110] After the cement-water glass slurry solidifies, it will form a continuous high-strength, low-permeability impermeable body. This impermeable body, together with multiple curtain barrier tubes 21 and multiple curtain barrier plates 22, forms the main structure of the curtain system, which can effectively block the spread of pollution sources to groundwater.

[0111] Due to the strong barrier effect of the curtain system, some pollutants will infiltrate and flow along the slope of the curtain system, forming a local high-concentration area near the bottom of the curtain system. The high-concentration area is cleaned regularly by using the negative pressure siphon mechanism 42, and the negative pressure exhaust fan 425 is used to evacuate the inside of the negative pressure connecting tank 424, so that the inside of the negative pressure siphon collecting ring shell 422 is in a negative pressure state. Under the action of negative pressure, pollutants in the rock formation will be mixed with groundwater leachate and enter the negative pressure siphon collecting ring shell 422 through the collecting through hole 4210. Then, under the action of negative pressure, the pollutant waste liquid entering the negative pressure siphon collecting ring shell 422 will be transported to the negative pressure connecting tank 424 through the collecting external discharge conveying pipe 423. Finally, the pollutant waste liquid can be purified by the purification equipment of the prior art.

[0112] The pollution monitoring device 41 is used to monitor the concentration of pollutants near the curtain system to ensure that the barrier effect of the curtain system is effective;

[0113] Before the curtain barrier single tube 21 is inserted into the pollution barrier accommodating hole 11, each of the first monitoring through holes 4120 and the second monitoring through holes 4130 is in a mutually dislocated and isolated state. After the curtain barrier single tube 21 is inserted into the pollution barrier accommodating hole 11, the opening and closing matching cover plate 413 is driven by a servo motor of the prior art fixed on the opening and closing matching plate connecting shaft 4121 through gear transmission to rotate around the axis of the opening and closing matching plate connecting shaft 4121, so that the axes of each of the first monitoring through holes 4120 and the second monitoring through holes 4130 are aligned and connected one by one;

[0114] The inner rod of the monitoring extension driving rod 418 extends to drive the monitoring extension sliding cylinder 415 together with the sensor fixing column 416 to move along the axis of the monitoring extension fixing cylinder 414, so that the sensor fixing column 416 passes through the first monitoring through hole 4120 and the second monitoring through hole 4130 and presses against the rock wall outside the curtain barrier single tube 21, and various pollution monitoring sensors 417 fixed in the sensor receiving hole 4160 are used to monitor the pollutant concentration;

[0115] Since the main structure of the curtain system is placed at an angle, the entire curtain system is simply divided into an upper side and a lower side in the vertical direction. When the pollutant concentration on the lower side of the curtain system is significantly lower than that on the upper side of the curtain system, it means that the curtain system has played a normal role in blocking pollutants. When the pollutant concentration on the lower side of the curtain system is not much different from that on the upper side of the curtain system, it means that the curtain system here may be in a failed state and needs to be repaired.

Claims

1. A curtain system for preventing and controlling groundwater pollution in exposed lava, characterized in that: It comprises a ground hole structure (10) and a curtain blocking mechanism (20) arranged in the ground hole structure (10); The ground hole structure (10) comprises a plurality of pollution barrier accommodating holes (11) drilled underground and arranged in parallel with each other, and two adjacent pollution barrier accommodating holes (11) are connected via adjacent connecting grooves (12); The curtain barrier mechanism (20) comprises a curtain barrier single tube (21) fixed in the pollution barrier accommodating hole (11); The side wall of the curtain barrier single tube (21) is provided with a plurality of barrier plate connection grooves (220) which are communicated with each other inside and outside, the barrier plate connection grooves (220) are slidably connected with curtain barrier plates (22), and the outer side edges of the curtain barrier plates (22) are sealedly connected with the outer side walls of the adjacent curtain barrier single tubes (21) by top pressure contact; A plurality of curtain tube partition plates (210) arranged in parallel with each other are fixed in the curtain barrier single tube (21), and a curtain isolation cavity (201) is formed between two adjacent curtain tube partition plates (210); The inner side wall of the curtain barrier single tube (21) is fixed with a plurality of grouting containing tube shells (231) extending parallel to its axis; the side wall of the curtain barrier single tube (21) is provided with a plurality of grouting external discharge holes (232) connected to the interior of the grouting containing tube shell (231); a grouting delivery pipe (23) is fixed in the grouting containing tube shell (231); and a grouting nozzle (230) connected to the grouting delivery pipe (23) is fixed in the grouting external discharge holes (232).

2. A curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: Two adjacent curtain baffles (22) are staggered and overlapped in a direction parallel to the axis of the curtain baffle single tube (21), and the overlapping area between the two adjacent curtain baffles (22) is 15-30%.

3. The curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: The outer side wall of the curtain barrier single tube (21) is fixed with a plurality of sealing top press-fit strips (211) extending in a direction parallel to its axis, the side of the sealing top press-fit strip (211) is provided with a sealing fitting groove (2110), and a sealing fitting rubber strip (2111) is fixed in the sealing fitting groove (2110).

4. The curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: The outer side wall of the curtain barrier single tube (21) has a plurality of grouting guide grooves (212) extending spirally around the axis thereof.

5. The curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: The curtain baffle plate (22) is connected to the curtain barrier single tube (21) via a pre-ejection mechanism (31), the pre-ejection mechanism (31) comprising a plurality of pre-ejection fixed tubes (311) fixed on the curtain tube partition plate (210), the outer side of the pre-ejection fixed tube (311) being slidably connected to a pre-ejection sliding tube (312), the outer end of the pre-ejection sliding tube (312) being fixedly connected to one end of the curtain baffle plate (22) located inside the curtain barrier single tube (21); A spring push rod (313) is provided between the inner end of the pre-ejection fixed cylinder (311) and the inner end of the pre-ejection sliding cylinder (312) in a press-fit manner.

6. The curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: The curtain tube partition plate (210) is provided with a pull-out release mechanism (32), the pull-out release mechanism (32) comprises a release control shaft connection hole (321) which is arranged on the curtain tube partition plate (210) and extends radially through the pre-ejection sliding cylinder (312), the release control shaft connection hole (321) is internally threadedly connected with a release control shaft (322), the outer side surface of the pre-ejection sliding cylinder (312) has a release snap-fitting hole (320) which is coaxially arranged with the release control shaft connection hole (321), and one end of the release control shaft (322) is snap-fitted in the release snap-fitting hole (320); A pull-out release handle (323) is fixed to one end of the release control shaft (322) away from the release clamping fitting hole (320); A torsion spring (3220) is provided between the release control shaft (322) and the curtain tube partition plate (210), and the torsion spring (3220) is sleeved on the release control shaft (322), one end of the torsion spring (3220) is fixedly connected to the release control shaft (322), and the other end of the torsion spring (3220) is fixedly connected to the curtain tube partition plate (210); A pull-out fixed groove tube (324) extending parallel to the axis of the curtain barrier single tube (21) is fixed on the curtain tube partition plate (210); the pull-out fixed groove tube (324) has a handle deflection groove (3240) communicating inside and outside on the side wall located at the pull-out release handle (323); a pull-out release control tube (325) is slidably connected inside the pull-out fixed groove tube (324); the outer end of the pull-out release handle (323) presses against the outer side wall of the pull-out release control tube (325).

7. The curtain system for preventing and controlling the pollution of exposed lava groundwater according to claim 1, characterized in that: The curtain tube partition plate (210) is provided with a baffle plate locking mechanism (34), and the baffle plate locking mechanism (34) includes a locking connection column (341) fixed to the outer end of the pre-ejection sliding cylinder (312); a locking connection cylinder (342) coaxially arranged with the locking connection column (341) is fixed to the curtain tube partition plate (210); one end of the locking connection cylinder (342) is open and the open end faces the locking connection column (341); a plurality of locking pin shaft receiving cylinders (343) extending radially thereof are fixed to the outer side of the locking connection cylinder (342); a locking pin shaft (344) is slidably connected inside the locking pin shaft receiving cylinder (343); a locking driving spring (345) is press-fitted between the locking pin shaft (344) and the inner end of the locking pin shaft receiving cylinder (343); The locking connection cylinder (342) has a locking pin through hole (3430) on its side wall which is connected to the locking pin shaft accommodating cylinder (343); The outer side wall of the locking connection column (341) is provided with a locking pin clamping ring groove (3410), and one end of the locking connection column (341) close to the locking connection tube (342) is a conical tip structure.

8. The curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: The curtain baffle plate (22) is provided with a baffle plate adjacent sealing mechanism (33), the baffle plate adjacent sealing mechanism (33) comprises an adjacent sealing conveying pipe (331) fixed on the curtain baffle plate (22), a side wall of the curtain baffle single tube (21) is provided with an adjacent sealing conveying pipe through hole (330), and the adjacent sealing conveying pipe (331) is slidably connected to the adjacent sealing conveying pipe through hole (330); The adjacent sealing conveying pipe (331) is arranged near the position where two adjacent curtain baffle plates (22) overlap each other; The side wall of the adjacent sealing delivery pipe (331) is provided with a plurality of adjacent sealing agent discharge holes (3310) which are communicated with each other inside and outside; One end of the adjacent sealing delivery pipe (331) located inside the curtain barrier single tube (21) is connected to a adjacent sealing agent storage tank (332), an output pipe of the adjacent sealing agent storage tank (332) is provided with an adjacent sealing control valve (3320), and a control valve push rod (333) is fixed on the inner side wall of the curtain barrier single tube (21).

9. The curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: A pollution monitoring mechanism (41) is provided in the curtain barrier single tube (21), and the pollution monitoring mechanism (41) comprises a pollution monitoring accommodating tube (411) fixed on the inner side wall of the curtain barrier single tube (21) and extending radially thereof; a pollution monitoring through hole (410) connected to the pollution monitoring accommodating tube (411) is provided on the side wall of the curtain barrier single tube (21); a monitoring airtight cover plate (412) is fixed in the pollution monitoring through hole (410); an opening and closing matching plate connecting shaft (4121) coaxial with the pollution monitoring accommodating tube (411) is fixed on the inner side of the monitoring airtight cover plate (412); an opening and closing matching cover plate (413) is rotatably connected to the opening and closing matching plate connecting shaft (4121); The monitoring sealed cover plate (412) has a plurality of first monitoring through holes (4120), and the opening and closing matching cover plate (413) has a plurality of second monitoring through holes (4130); A plurality of monitoring extension fixing cylinders (414) are fixed in the pollution monitoring accommodating cylinder (411), a monitoring extension sliding cylinder (415) is slidably connected in the monitoring extension fixing cylinder (414), a sensor fixing column (416) is fixed at the outer end of the monitoring extension sliding cylinder (415), a sensor accommodating hole (4160) is provided on the sensor fixing column (416), and a pollution monitoring sensor (417) is fixed in the sensor accommodating hole (4160); A monitoring extension drive rod (418) for driving the monitoring extension sliding cylinder (415) to move is arranged inside the monitoring extension fixed cylinder (414).

10. The curtain system for preventing and controlling exposed lava groundwater pollution according to claim 1, characterized in that: A negative pressure siphon mechanism (42) is provided at the tail end of the curtain barrier single tube (21), and the negative pressure siphon mechanism (42) comprises a negative pressure siphon receiving tube (421) fixed to the tail end of the curtain barrier single tube (21), a negative pressure siphon collecting ring shell (422) is fixed to the inner side wall of the negative pressure siphon receiving tube (421), and a plurality of collecting through holes (4210) are provided on the side wall of the negative pressure siphon receiving tube (421) and are connected to the inside of the negative pressure siphon collecting ring shell (422); A collecting and discharging pipe (423) connected to the interior of the negative pressure siphon collecting ring shell (422) is fixed on the ring shell, and a negative pressure connecting tank (424) connected to the other end of the collecting and discharging pipe (423) is fixed on the ground. A negative pressure exhaust fan (425) is connected to the negative pressure connecting tank (424), and the input end of the negative pressure exhaust fan (425) is connected to the interior of the negative pressure connecting tank (424) through a pipeline.

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