Underground water isolating and flow guiding structure of refuse landfill

Abstract

The utility model relates to the technical field of underground water isolation and diversion, in particular to an underground water isolation and diversion structure of a refuse landfill, which comprises a cover body, a pipe sleeve, a permeable partition plate, a bottom cover and an isolation mechanism, when percolate gathered at the position of the pipe sleeve and the bottom cover is sucked, due to the fact that the liquid suction pipe is arranged below the center of the bottom cover, when the percolate is gathered, part of the percolate flows into the bottom of the liquid suction pipe, the liquid suction pipe is connected with the suction pump in a sealed mode through the limiting assembly and the connecting assembly, then the suction pump is started, and the percolate in the liquid suction pipe and the pipe sleeve is sucked out from the position below the bottom cover. Due to the fact that the percolate is sucked downwards from the bottom of the percolate gathering position, the percolate is sucked more thoroughly, the risk that the mechanism is corroded by the residual percolate is reduced, when the percolate is gathered, the bottom cover can be protected by the anti-corrosion film, and the effect of prolonging the service life of the structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater isolation and diversion, in particular to a groundwater isolation and diversion structure of a garbage landfill. Background Art

[0002] With the expansion of urbanization, a large amount of garbage is generated. In order to prevent a large amount of garbage from causing serious pollution to the soil and water bodies, landfills are opened for treatment. However, most landfills have poor anti-seepage performance, and the leachate generated by the garbage will seep into the soil and water bodies, causing pollution.

[0003] Prior art CN212926188U discloses a groundwater isolation and diversion barrier based on a landfill, comprising an outer guide cover, an inner landfill pit body, a cover body, a well pipe, a connecting inclined cover, a pipe sleeve, a permeable partition, a plurality of support sleeves, a bottom cover and a suction pipe, wherein the inner landfill pit body is arranged in the outer guide plate, the cover body is fixedly connected to the outer guide cover and buried deep underground, the well pipe is fixedly connected to the cover body, the connecting inclined cover is fixedly connected to one side of the cover body, the pipe sleeve is fixedly connected in the cover body, the permeable partition is fixedly connected to the bottom of the pipe sleeve, a plurality of support sleeves are fixedly connected to the bottom of the permeable partition, the bottom cover is fixedly connected to the bottom of the pipe sleeve, the suction pipe It is fixedly connected to the top of the infiltration partition. When degrading garbage, the garbage is poured into the pipe sleeve and the outer guide cover is filled with soil. The microorganisms in the soil will diffuse into the garbage to degrade the garbage. The leachate generated by the garbage seeps out from the infiltration partition, enters between the multiple support sleeves, and is collected above the bottom cover. At this time, the suction pipe can be used to suck out the leachate for treatment to prevent the leachate from overflowing and polluting the environment. When it rains, dirty water will flow into the cover body. Since the cover body is provided with an inclined placement groove, the dirty water will be guided to flow to the well pipe. At this time, the infiltration situation can be judged by the water level in the well pipe, and the connection of the leachate can be gathered and extracted to improve the anti-seepage ability of the groundwater isolation and diversion mechanism.

[0004] However, the above prior art performs suction from above the point where the leachate converges, which will leave some leachate and the suction is not thorough, resulting in corrosion of the anti-seepage structure and reducing the service life of the structure. Utility Model Content

[0005] The utility model aims to provide a groundwater isolation and diversion structure for a landfill, which solves the problem that in the prior art, part of the leachate will remain when the leachate is sucked from above the point where the leachate converges, and the suction is not thorough, which leads to corrosion of the anti-seepage structure and reduces the service life of the structure.

[0006] To achieve the above-mentioned purpose, the utility model provides a groundwater isolation and diversion structure for a landfill, comprising a cover body, a pipe sleeve, a permeable partition, a bottom cover and an isolation mechanism, wherein the isolation mechanism comprises an isolation cover, a liquid extraction pipe, an anti-corrosion film, a suction pump, a limit assembly and a connecting assembly, the pipe sleeve is fixedly arranged in the cover body, the permeable partition is fixedly connected to the bottom of the pipe sleeve, the bottom cover is fixedly connected to the bottom of the pipe sleeve, the isolation cover is fixedly connected to the bottom of the pipe sleeve, the liquid extraction pipe is fixedly connected in the isolation cover and passes through the bottom cover, the anti-corrosion film is fixedly connected to the surface of the bottom cover, the suction pump is arranged on one side of the cover body, and a plurality of slots are provided at the input end, the limit assembly is located on one side of the pipe sleeve, and the connecting assembly is located on one side of the liquid extraction pipe.

[0007] Wherein, the limiting assembly includes a fixed cover and a protective film, the fixed cover is fixedly connected to one side of the pipe sleeve and covers the liquid extraction tube, and the protective film is fixedly connected to the inner wall of the liquid extraction tube.

[0008] Among them, the limiting assembly also includes a limiting frame, a threaded ring and an external threaded sleeve, the limiting frame is fixedly connected to the top of the cover body, the threaded ring is rotatably connected in the limiting frame, and the external threaded sleeve is fixedly connected to the surface of the liquid extraction tube and is threadedly connected to the threaded ring.

[0009] Wherein, the connecting assembly includes a plurality of bumps and sealing gaskets, wherein the plurality of bumps are fixedly connected to the output end of the liquid extraction tube and are respectively located in a plurality of the card slots, and the sealing gasket is fixedly connected to the liquid extraction tube and is located between the liquid extraction tube and the suction pump.

[0010] Wherein, the connecting assembly further comprises a flange and a plurality of fixing bolts, wherein the flange is fixedly connected to the output end of the liquid extraction tube and the input end of the suction pump, and the plurality of fixing bolts are threadedly connected in the flange.

[0011] Among them, the groundwater isolation and diversion structure of the landfill also includes a diversion mechanism, which includes a crushed stone layer and a gravel layer. The crushed stone layer is arranged below the cover body and is provided with multiple diversion grooves. The gravel layer is laid below the crushed stone layer.

[0012] Among them, the diversion mechanism also includes multiple flower tubes, multiple geotextile filters and multiple inspection tubes. Each of the flower tubes is arranged in each of the diversion grooves and is provided with multiple diversion holes. Each of the geotextile filters is fixedly connected to the surface of each of the flower tubes, and the multiple inspection tubes are respectively fixedly arranged in the multiple diversion grooves.

[0013] The utility model discloses a groundwater isolation and diversion structure for a garbage landfill, when sucking the leachate gathered at the pipe sleeve and the bottom cover, because the liquid suction pipe is arranged below the center of the bottom cover, when the leachate is gathered, part of it flows into the bottom of the liquid suction pipe, and the liquid suction pipe is sealed and connected to the suction pump through the limiting component and the connecting component, and then the suction pump is started to suck the leachate in the liquid suction pipe and the pipe sleeve from the bottom of the bottom cover. Since the suction is downward from the bottom of the leachate gathering place, the suction of the leachate is more thorough, and the risk of the mechanism being corroded by the residual leachate is reduced. Moreover, when the leachate is gathered, the anti-corrosion film can protect the bottom cover, thereby increasing the service life of the structure, and avoiding the problem that the prior art sucks from above the leachate gathering place, part of the leachate will remain, the suction is not thorough, the anti-permeation structure is corroded, and the service life of the structure is reduced. The leachate is more thoroughly extracted, and the structure is protected, thereby increasing the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0016] Figure 2 It is an overall cross-sectional view of the first embodiment of the utility model.

[0017] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0019] Figure 5 yes Figure 2 Enlarged view of point C in the middle.

[0020] Figure 6 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0021] Figure 7 It is a schematic structural diagram of the gravel layer of the second embodiment of the utility model.

[0022] 101-cover body, 102-pipe sleeve, 103-permeable partition, 104-bottom cover, 105-isolation cover, 106-liquid extraction pipe, 107-anticorrosive film, 108-suction pump, 109-fixed cover, 110-protective film, 111-limiting frame, 112-threaded collar, 113-external threaded sleeve, 114-bump, 115-sealing gasket, 116-flange, 117-fixing bolt, 201-gravel layer, 202-pebble layer, 203-flower pipe, 204-geofilter, 205-inspection pipe. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] The first embodiment of the present application is:

[0025] See also Figure 1-Figure 5 ,in Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model; Figure 2 It is a sectional view of the whole of the first embodiment of the utility model; Figure 3 yes Figure 2 The enlarged view of point A in the middle; Figure 4 yes Figure 2 The enlarged view of point B in the middle; Figure 5 yes Figure 2 Enlarged view of point C in the middle.

[0026] The utility model provides a groundwater isolation and diversion structure for a garbage landfill, comprising a cover body 101, a pipe sleeve 102, a permeable baffle 103, a bottom cover 104 and an isolation mechanism, wherein the isolation mechanism comprises an isolation cover 105, a liquid extraction pipe 106, an anti-corrosion film 107, a suction pump 108, a limiting component and a connecting component, wherein the limiting component comprises a fixed cover 109, a protective film 110, a limiting frame 111, a threaded collar 112 and an external threaded sleeve 113, and the connecting component comprises a plurality of protrusions 114, a sealing gasket 115, a flange 116 and a plurality of fixing bolts 117. The above-mentioned scheme solves the problem that the above prior art performs suction from above the point where the leachate converges, part of the leachate will remain, the suction is not thorough, the anti-permeation structure is corroded, and the service life of the structure is reduced.

[0027] According to the present specific embodiment, the pipe sleeve 102 is fixedly arranged in the cover body 101, the permeable partition 103 is fixedly connected to the bottom of the pipe sleeve 102, the bottom cover 104 is fixedly connected to the bottom of the pipe sleeve 102, the isolation cover 105 is fixedly connected to the bottom of the pipe sleeve 102, the liquid extraction pipe 106 is fixedly connected in the isolation cover 105 and passes through the bottom cover 104, the anti-corrosion film 107 is fixedly connected to the surface of the bottom cover 104, the suction pump 108 is arranged on one side of the cover body 101, and a plurality of slots are provided at the input end, the limiting component is located on one side of the pipe sleeve 102, and the connecting component is located on one side of the liquid extraction pipe 106. When the leachate is collected at the pipe sleeve 102 and the bottom cover 104, since the suction pipe 106 is arranged below the center of the bottom cover 104, when the leachate gathers, part of it flows into the bottom of the suction pipe 106, and the suction pipe 106 is sealed and connected to the suction pump 108 through the limiting assembly and the connecting assembly. Then the suction pump 108 is started to suck the leachate in the suction pipe 106 and the pipe sleeve 102 out from under the bottom cover 104. Since the leachate is sucked downward from the bottom of the gathering place, the suction of the leachate is more thorough, thereby reducing the risk of the mechanism being corroded by the residual leachate. Moreover, when the leachate gathers, the anti-corrosion film 107 will protect the bottom cover 104 and increase the service life of the structure.

[0028] Among them, the fixed cover 109 is fixedly connected to one side of the pipe sleeve 102 and covers the liquid extraction pipe 106. The protective film 110 is fixedly connected to the inner wall of the liquid extraction pipe 106. The fixed cover 109 vertically fixes and protects the liquid extraction pipe 106. The protective film 110 covers the inner wall of the liquid extraction pipe 106 to prevent the leachate from corroding the liquid extraction pipe 106.

[0029] Secondly, the limit frame 111 is fixedly connected to the top of the cover body 101, the threaded ring 112 is rotatably connected to the limit frame 111, and the external threaded sleeve 113 is fixedly connected to the surface of the liquid extraction tube 106 and is threadedly connected to the threaded ring 112. When cleaning and overhauling the suction pump 108, the connecting assembly is opened to disengage the output end of the liquid extraction tube 106 from the input end of the suction pump 108. At this time, the suction pump 108 can be cleaned and overhauled, and the threaded ring 112 located in the limit frame 111 is rotated to disengage the external threaded sleeve 113 from the threaded ring 112, thereby pulling the liquid extraction tube 106 out of the limit frame 111 for storage.

[0030] At the same time, the plurality of protrusions 114 are fixedly connected to the output end of the liquid extraction tube 106 and are respectively located in the plurality of slots. The sealing gasket 115 is fixedly connected to the liquid extraction tube 106 and is located between the liquid extraction tube 106 and the suction pump 108. When connecting the liquid extraction tube 106 and the suction pump 108, the plurality of protrusions 114 are inserted into the corresponding slots, and the output end of the liquid extraction tube 106 and the input end of the suction pump 108 are pressed to make the connection more stable. At this time, the sealing gasket 115 makes the connection between the two in a sealed state, and no leakage of leachate will occur.

[0031] At the same time, the flange 116 is fixedly connected to the output end of the liquid extraction pipe 106 and the input end of the suction pump 108, and a plurality of the fixing bolts 117 are threadedly connected to the flange 116. When connecting the liquid extraction pipe 106 and the suction pump 108, the plurality of the protrusions 114 are inserted into the corresponding slots, and the output end of the liquid extraction pipe 106 and the input end of the suction pump 108 are pressed to make the connection more stable. The plurality of the fixing bolts 117 are tightened, and the liquid extraction pipe 106 and the suction pump 108 are fixed through the flange 116. At this time, the sealing gasket 115 makes the connection between the two in a sealed state, and no leakage of leachate will occur.

[0032] Before using the structure, the cover body 101 is buried in the soil and filled with soil. The fixed cover 109 vertically fixes the liquid extraction pipe 106 and protects it to prevent debris in the soil from damaging the liquid extraction pipe 106. The protective film 110 covers the inner wall of the liquid extraction pipe 106 to prevent the leachate from corroding the liquid extraction pipe 106. The output end of the liquid extraction pipe 106 is passed through the threaded collar 112 until the external threaded sleeve 113 contacts it, and the threaded collar 112 is rotated to make the external threaded sleeve 113 contact it. The plurality of screw threads 114 at the output end of the liquid extraction tube 106 are connected to limit the position of the liquid extraction tube 106 in cooperation with the limit frame 111, and then the plurality of protrusions 114 at the output end of the liquid extraction tube 106 are inserted into the corresponding slots on the input end of the suction pump 108, and the output end of the liquid extraction tube 106 and the input end of the suction pump 108 are pressed tightly, and the plurality of fixing bolts 117 are tightened, and the liquid extraction tube 106 and the suction pump 108 are fixed by the flange 116 to make the connection more stable. At this time, the sealing gasket 115 makes the connection between the two in a sealed state, and no leakage occurs. In case of filtrate leakage, the garbage is buried in the pipe sleeve 102, and the microorganisms in the soil will escape into the garbage to degrade the garbage; because the extraction pipe 106 is arranged below the center of the bottom cover 104, when the leachate gathers, part of it flows into the bottom of the extraction pipe 106, but under the action of the anti-corrosion film 107 and the protective film 110, the leachate will not corrode the bottom cover 104 and the extraction pipe 106; when the leachate is sucked, the suction pump 108 is started to suck the leachate from the extraction pipe 106 and the pipe sleeve 102 through the bottom cover 104. The bottom cover 104 is sucked out because the leachate is sucked downward from the bottom of the gathering place, so the leachate is sucked out more thoroughly, reducing the risk of the structure being corroded by the residual leachate, and when the leachate is gathered, the anti-corrosion film 107 will protect the bottom cover 104, thereby increasing the service life of the structure, avoiding the problem of the prior art of sucking from above the gathering place of the leachate, which will leave some leachate, incomplete suction, corrosion of the anti-permeability structure, and shortening the service life of the structure. The leachate is extracted more thoroughly, and the structure is protected, thereby increasing the service life of the structure.

[0033] The second embodiment of the present application is:

[0034] See also Figure 6-Figure 7 ,in Figure 6 It is a schematic diagram of the overall structure of the second embodiment of the utility model; Figure 7 It is a schematic structural diagram of the gravel layer of the second embodiment of the utility model.

[0035] On the basis of the first embodiment, the groundwater isolation and diversion structure of the landfill in this embodiment further includes a diversion mechanism, which includes a crushed stone layer 201, a gravel layer 202, a plurality of flower pipes 203, a plurality of geotextile filters 204 and a plurality of inspection pipes 205.

[0036] The gravel layer 201 is arranged below the cover body 101 and is provided with a plurality of diversion grooves. The pebble layer 202 is laid below the gravel layer 201. The gravel layer 201 allows groundwater to penetrate into the plurality of diversion grooves for diversion. Pebbles have strong stability and bearing capacity, so the pebble layer 202 makes the groundwater diversion structure more stable and less prone to damage.

[0037] Secondly, each of the flower tubes 203 is arranged in each of the diversion grooves and is provided with a plurality of diversion holes. Each of the geotextile filters 204 is fixedly connected to the surface of each of the flower tubes 203. The plurality of inspection tubes 205 are respectively fixedly arranged in the plurality of diversion grooves. When the groundwater penetrates from the gravel layer 201 to the plurality of diversion grooves, it will pass through the geotextile filter 204 and the diversion holes into the flower tubes 203. At this time, the geotextile filter 204 will intercept the gravel and impurities in the groundwater to prevent the flower tubes 203 and the diversion holes from being blocked. Then the groundwater flows along the flower tubes 203, thereby realizing the diversion of the groundwater. At the same time, the plurality of inspection tubes 205 can be used to observe the groundwater flow in each of the flower tubes 203 to a certain extent so as to take corresponding measures.

[0038] When diverting groundwater, groundwater penetrates from the gravel layer 201 to the multiple diversion grooves, and enters the flower tube 203 through the geofilter 204 and the diversion holes. At this time, the geofilter 204 will intercept the gravel and impurities in the groundwater to prevent the flower tube 203 and the diversion holes from being blocked. Then the groundwater flows along the flower tube 203, thereby realizing the diversion of groundwater. At the same time, the multiple inspection tubes 205 can be used to observe the groundwater flow in each flower tube 203 to a certain extent, so as to take corresponding measures, thereby achieving the effect of diverting groundwater and conducting real-time diversion situation survey.

[0039] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A groundwater isolation and diversion structure for a landfill, comprising a cover body, a pipe sleeve, a permeable baffle and a bottom cover, wherein the pipe sleeve is fixedly arranged in the cover body, the permeable baffle is fixedly connected to the bottom of the pipe sleeve, and the bottom cover is fixedly connected to the bottom of the pipe sleeve, characterized in that: It also includes quarantine institutions; The isolation mechanism includes an isolation cover, a liquid extraction tube, an anti-corrosion film, a suction pump, a limit assembly and a connecting assembly. The isolation cover is fixedly connected to the bottom of the pipe sleeve, the liquid extraction tube is fixedly connected inside the isolation cover and passes through the bottom cover, the anti-corrosion film is fixedly connected to the surface of the bottom cover, the suction pump is arranged on one side of the cover body, and a plurality of slots are provided at the input end, the limit assembly is located on one side of the pipe sleeve, and the connecting assembly is located on one side of the liquid extraction tube.

2. The groundwater isolation and diversion structure of a landfill as claimed in claim 1, characterized in that: The limiting assembly includes a fixed cover and a protective film. The fixed cover is fixedly connected to one side of the pipe sleeve and covers the liquid extraction tube. The protective film is fixedly connected to the inner wall of the liquid extraction tube.

3. The groundwater isolation and diversion structure of a landfill as claimed in claim 2, characterized in that: The limiting assembly also includes a limiting frame, a threaded collar and an external threaded sleeve. The limiting frame is fixedly connected to the top of the cover body, the threaded collar is rotatably connected in the limiting frame, and the external threaded sleeve is fixedly connected to the surface of the liquid extraction tube and is threadedly connected to the threaded collar.

4. The groundwater isolation and diversion structure of a landfill as claimed in claim 1, characterized in that: The connecting assembly includes a plurality of protrusions and sealing gaskets. The plurality of protrusions are fixedly connected to the output end of the liquid extraction tube and are respectively located in a plurality of the card slots. The sealing gasket is fixedly connected to the liquid extraction tube and is located between the liquid extraction tube and the suction pump.

5. The groundwater isolation and diversion structure of a landfill as claimed in claim 4, characterized in that: The connection assembly also includes a flange and a plurality of fixing bolts. The flange is fixedly connected to the output end of the liquid extraction pipe and the input end of the suction pump. The plurality of fixing bolts are threadedly connected in the flange.

6. The groundwater isolation and diversion structure of a landfill as claimed in claim 1, characterized in that: The groundwater isolation and diversion structure of the landfill also includes a diversion mechanism, which includes a crushed stone layer and a pebble layer. The crushed stone layer is arranged below the cover body and is provided with a plurality of diversion grooves. The pebble layer is laid below the crushed stone layer.

7. The groundwater isolation and diversion structure of a landfill as claimed in claim 6, characterized in that: The diversion mechanism also includes multiple flower tubes, multiple geotextile filters and multiple inspection tubes. Each of the flower tubes is arranged in each of the diversion grooves and is provided with multiple diversion holes. Each of the geotextile filters is fixedly connected to the surface of each of the flower tubes, and the multiple inspection tubes are respectively fixedly arranged in the multiple diversion grooves.

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