Percolate guiding and discharging and impermeable membrane energy dissipation protection device

Abstract

The invention discloses a percolate guiding and discharging and impermeable membrane energy dissipation protection device, and belongs to the technical field of industrial solid waste treatment. The device comprises an industrial solid waste disposal site, an energy dissipation device and a leachate collection pool, the energy dissipation device is connected with the industrial solid waste disposal site through a drainage pipe A or an energy dissipation pipe set, and an effluent energy dissipation device is placed in the leachate collection pool and connected with the energy dissipation device through the energy dissipation pipe set. The percolate is subjected to three-stage or four-stage energy dissipation and then is guided and discharged into the percolate collecting tank, so that the kinetic energy and the flow speed of the percolate are greatly reduced, the energy dissipation effect on the percolate is improved, and the influence of hydraulic impact and hydraulic disturbance of the percolate on an impermeable membrane in the percolate collecting tank is basically eliminated, so that the impermeable membrane is effectively prevented from being broken, and the service life of the percolate is prolonged. The integrity of the impermeable membrane is ensured, and the safe and stable operation of the leachate collecting tank is ensured.

Description

Technical Field

[0001] The invention relates to a leachate drainage and anti-seepage membrane energy dissipation protection device, belonging to the technical field of industrial solid waste disposal. Background Art

[0002] Industrial solid waste disposal sites are affected by atmospheric precipitation and their own water infiltration. It is necessary to set up leachate drainage blind ditches and leachate drainage pipes at the bottom of the disposal site. Improper setting or protection of the seepage system may lead to poor leachate drainage, causing leachate accumulation in the reservoir, increasing the risk of rupture and leakage of the anti-seepage membrane, and also causing the infiltration line of the industrial solid waste disposal site to rise, bringing adverse effects on the safety of the disposal site. In addition, the leachate or the flood drainage system in the reservoir is directly discharged into the leachate collection pool without energy dissipation, which will have an impact and destructive effect on the integrity of the anti-seepage membrane of the leachate collection pool.

[0003] The Chinese patent document with the publication number CN114960914A discloses an anti-seepage membrane protection structure of a regulating pool in a solid waste disposal site, including an energy dissipation pool, a regulating pool and a flexible return water pump group. An anti-seepage membrane is laid in the regulating pool, and a vertical slit energy dissipator is arranged on the anti-seepage membrane. The regulating pool is connected to the energy dissipation pool through an inlet pipe, and one end of the inlet pipe passes through the side wall of the regulating pool and the anti-seepage membrane and then extends to the vertical slit energy dissipator. The flexible return water pump group is arranged on a vibration-damping support A, and one end of the flexible return water pump group is connected to the regulating pool through a return water pipe. The leachate flows into the regulating pool after two-stage energy dissipation treatment, which greatly reduces the scouring and disturbance effect of the leachate on the anti-seepage membrane, and effectively prevents the anti-seepage membrane from being damaged by hydraulic disturbance.

[0004] However, this structure still has the following shortcomings:

[0005] First, after two-stage energy dissipation treatment, the leachate is introduced into the regulating tank. The kinetic energy and flow rate of the leachate when entering the regulating tank are still relatively large.

[0006] Second, as the amount of leachate in the energy dissipation pool gradually increases, the liquid level of the leachate will eventually be higher than all the energy dissipation walls and remain unchanged, which will cause the energy dissipation effect of some energy dissipation walls on the leachate to be significantly reduced or even lost.

[0007] It can be seen that the energy dissipation effect of this structure on leachate needs to be further improved. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a leachate drainage and anti-seepage membrane energy dissipation protection device.

[0009] The present invention is achieved through the following technical solutions:

[0010] A leachate drainage and anti-seepage membrane energy dissipation protection device comprises an industrial solid waste disposal site, an energy dissipation device and a leachate collection pool. The energy dissipation device is connected to the industrial solid waste disposal site through a drainage pipe A or an energy dissipation pipe group. A water outlet energy dissipator is placed in the leachate collection pool, and the water outlet energy dissipator is connected to the energy dissipation device through an energy dissipation pipe group.

[0011] The bottom of the industrial solid waste disposal site is provided with a bottom anti-seepage component, and the slope of the reservoir area of ​​the industrial solid waste disposal site is provided with a perimeter anti-seepage component, and the perimeter anti-seepage component is cold-lapped or hot-welded to the bottom anti-seepage component, and the bottom anti-seepage component and the perimeter anti-seepage component are jointly provided with a leachate collection and drainage mechanism.

[0012] The reservoir bottom anti-seepage component comprises a compacted base layer, a clay cushion layer, a sodium-based bentonite blanket layer, a rough surface HDPE membrane and a non-woven geotextile which are laid in sequence from bottom to top.

[0013] When the slope of the reservoir area slope is greater than 1:2, the anti-seepage components around the reservoir include a rock and soil foundation layer, a C20 shotcrete layer, a bottom geotextile, a rough HDPE membrane and a non-woven geotextile laid in sequence from bottom to top; when the slope of the reservoir area slope is not greater than 1:2, the anti-seepage components around the reservoir include a compacted foundation layer, a sodium-based bentonite blanket layer, a rough HDPE membrane and a non-woven geotextile laid in sequence from bottom to top.

[0014] The leachate collection and drainage mechanism includes a main leachate assembly and multiple branch leachate assemblies, one end of the main leachate assembly extends to the initial dam of the industrial solid waste disposal site, the multiple branch leachate assemblies are arranged on both sides of the main leachate assembly, and one end of the branch leachate assembly is connected to the main leachate assembly.

[0015] The cross-sectional structure of the branch infiltration component is consistent with the cross-sectional structure of the main infiltration component. The main infiltration component includes an infiltration ditch and a HDPE flower pipe. The HDPE flower pipe is located in the infiltration ditch. The infiltration ditch is filled with gravel around the HDPE flower pipe, and the HDPE flower pipe and the gravel around it are wrapped together in a non-woven geotextile.

[0016] One end of the drainage pipe A or the energy dissipation pipe group between the energy dissipation device and the industrial solid waste disposal site passes through the initial dam and is connected to an end of the main seepage component close to the initial dam.

[0017] The energy dissipation device includes an energy dissipation pool, in which a first transverse partition wall and a second transverse partition wall are arranged side by side, and a liquid hole is provided at the upper part of the first transverse partition wall, and a liquid hole is also provided at the lower part of the second transverse partition wall. The first transverse partition wall and the second transverse partition wall divide the energy dissipation pool into a first energy dissipation chamber, a second energy dissipation chamber and a third energy dissipation chamber in sequence. The first transverse partition wall and the first energy dissipation chamber are both arranged close to the liquid inlet of the energy dissipation pool, an energy dissipation pile is arranged in the first energy dissipation chamber, and the energy dissipation pile is located below the liquid outlet of the drainage pipe A or the energy dissipation pipe group between the energy dissipation device and the industrial solid waste disposal site.

[0018] The energy dissipation pile is formed by stacking a plurality of four-cone energy dissipation bodies in a disordered manner. The four-cone energy dissipation body comprises four cones, and the large ends of the four cones are connected together, and the small ends extend in different directions.

[0019] A plurality of energy dissipation plates are alternately arranged on the first transverse partition wall and the second transverse partition wall from top to bottom in the second energy dissipation chamber, and the projections of the energy dissipation plates on the first transverse partition wall and the energy dissipation plates on the second transverse partition wall on the bottom plate of the second energy dissipation chamber overlap;

[0020] A plurality of energy dissipation plates are alternately arranged on the second transverse partition wall and the side wall of the energy dissipation pool opposite to the second transverse partition wall in the third energy dissipation chamber from top to bottom, and the projections of the energy dissipation plates on the second transverse partition wall and the energy dissipation plates on the side wall of the energy dissipation pool on the bottom plate of the third energy dissipation chamber partially overlap.

[0021] Two first longitudinal partition walls are arranged side by side in the second energy dissipation chamber, and two second longitudinal partition walls are arranged side by side in the third energy dissipation chamber, and liquid holes are arranged at the lower parts of the first longitudinal partition walls and the second longitudinal partition walls.

[0022] The energy dissipation pipe group includes a drainage pipe B, a spiral plate is arranged in the drainage pipe B, and a plurality of energy dissipation teeth are arranged on the upper surface of the spiral plate.

[0023] The water outlet energy dissipator includes a base plate and a drainage box. The drainage box is arranged on the base plate, and a plurality of drainage ports are opened in the upper part of the drainage box in the horizontal direction. The liquid outlet end of the energy dissipation pipe group between the water outlet energy dissipator and the energy dissipation device extends to the lower part of the drainage box.

[0024] The energy dissipation pipe group is slidably connected to the through hole on the top of the drainage box, the bottom plate is an inflatable buffer cushion, and the inflatable buffer cushion is provided with a valve core.

[0025] The beneficial effects of the present invention are:

[0026] 1. When the energy dissipation device is connected to the industrial solid waste disposal site through the drain pipe A, the leachate in the industrial solid waste disposal site is drained into the energy dissipation device through the drain pipe A, and then the leachate is subjected to primary energy dissipation through the energy dissipation device, secondary energy dissipation through the energy dissipation pipe group, and tertiary energy dissipation through the outlet energy dissipator. Then the leachate is drained into the leachate collection pool, which greatly reduces the kinetic energy and flow rate of the leachate, improves the energy dissipation effect on the leachate, and basically eliminates the influence of the hydraulic impact and hydraulic disturbance of the leachate on the anti-seepage membrane in the leachate collection pool, thereby effectively avoiding the rupture of the anti-seepage membrane, ensuring the integrity of the anti-seepage membrane, and ensuring the safe and stable operation of the leachate collection pool.

[0027] 2. When the energy dissipation device is connected to the industrial solid waste disposal site through the energy dissipation pipe group, the leachate discharged from the industrial solid waste disposal site undergoes primary energy dissipation through the energy dissipation pipe group, secondary energy dissipation through the energy dissipation device, tertiary energy dissipation through the energy dissipation pipe group, and fourth energy dissipation through the outlet energy dissipator. Then the leachate is discharged into the leachate collection pool, which significantly reduces the kinetic energy and flow rate of the leachate, improves the energy dissipation effect on the leachate, and basically eliminates the influence of the hydraulic impact and hydraulic disturbance of the leachate on the anti-seepage membrane in the leachate collection pool, thereby effectively avoiding the rupture of the anti-seepage membrane, ensuring the integrity of the anti-seepage membrane, and ensuring the safe and stable operation of the leachate collection pool.

[0028] 3. The top surfaces of the first transverse partition wall and the second transverse partition wall are coplanar, and the purpose of energy dissipation is achieved by opening liquid holes in the upper part of the first transverse partition wall and the lower part of the second transverse partition wall. With this energy dissipation structure, the leachate level in the energy dissipation pool will generally not be higher than the top surfaces of the first transverse partition wall and the second transverse partition wall, and there is no technical problem in the prior art that the energy dissipation effect of some partition walls on the leachate is significantly reduced or even lost.

[0029] 4. The energy dissipation pile in the first energy dissipation chamber has the function of dispersing and dissipating the energy of the leachate on the one hand, and can prevent the hydraulic impact load from scouring and damaging the bottom plate of the energy dissipation pool on the other hand. The four-cone energy dissipation body includes four cones. This structure can increase the contact time and contact area between the leachate and the four-cone energy dissipation body, and effectively disperse the leachate to improve the energy dissipation effect on the leachate.

[0030] 5. The leachate entering the second energy dissipation chamber through the liquid hole at the upper part of the first transverse partition wall is dissipated through multiple energy dissipation plates in the process of flowing from top to bottom, thereby improving the energy dissipation effect of the energy dissipation pool; similarly, the leachate entering the third energy dissipation chamber through the liquid hole at the lower part of the second transverse partition wall is dissipated through multiple energy dissipation plates in the process of flowing from bottom to top, thereby improving the energy dissipation effect of the energy dissipation pool.

[0031] 6. The energy dissipation plates on the first transverse partition wall and the energy dissipation plates on the second transverse partition wall partially overlap in their projections on the bottom plate of the second energy dissipation chamber, and the energy dissipation plates on the second transverse partition wall and the energy dissipation plates on the side walls of the energy dissipation pool partially overlap in their projections on the bottom plate of the third energy dissipation chamber, so that the path of the leachate flowing through the energy dissipation plates in the second energy dissipation chamber and the third energy dissipation chamber is S-shaped, thereby extending the energy dissipation path of the leachate, which can significantly improve the energy dissipation effect of the energy dissipation pool on the leachate.

[0032] 7. The structural strength and stability of the energy dissipation pool are improved by the first longitudinal partition wall and the second longitudinal partition wall to avoid deformation of the energy dissipation pool due to excessive size. At the same time, the energy dissipation board is connected to the first longitudinal partition wall or the second longitudinal partition wall, and the first longitudinal partition wall and the second longitudinal partition wall also have the function of improving the installation stability of the energy dissipation board.

[0033] 8. The bottom plate is an inflatable cushion. When the leachate flows into the empty leachate collection tank, the inflatable cushion protects the anti-seepage membrane at the bottom of the leachate collection tank to prevent the leachate from directly impacting the anti-seepage membrane. At the same time, the inflatable cushion has a buffering and vibration reduction effect on the hydraulic impact load of the leachate, further protecting the anti-seepage membrane at the bottom of the leachate collection tank. Since the bottom plate is an inflatable cushion and the drain pipe B is slidably connected to the through hole at the top of the drainage box, when a certain amount of leachate is stored in the leachate collection tank, the entire water outlet energy dissipator will float up under the buoyancy of the inflatable cushion, thereby separating from the anti-seepage membrane at the bottom of the filtrate collection tank, so that the anti-seepage membrane at the bottom of the filtrate collection tank is no longer affected by the hydraulic impact and hydraulic disturbance of the leachate, ensuring the safe and stable operation of the leachate collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 is a cross-sectional view of an industrial solid waste disposal site of the present invention;

[0036] Figure 3 for Figure 1 A cross-sectional view of the main seepage component along AA;

[0037] Figure 4 It is a structural schematic diagram of the HDPE floral pipe of the present invention;

[0038] Figure 5 for Figure 1 A cross-sectional view of the energy dissipation device along DD;

[0039] Figure 6 It is a schematic structural diagram of the four-cone energy dissipation body of the present invention;

[0040] Figure 7 It is a structural schematic diagram of the vertical section of the energy dissipation pipe group of the present invention;

[0041] Figure 8 It is a schematic diagram of the three-dimensional structure of the vertical section of the energy dissipation pipe group of the present invention;

[0042] Fig. 9 A longitudinal sectional view of a vertical section of an energy dissipation pipe assembly of the present invention;

[0043] Fig.10 It is a schematic diagram of the assembly structure of the energy dissipation pipe group and the drainage box of the invention;

[0044] Fig.11 for Figure 1 Cross-sectional view of the outlet energy dissipator and leachate collection tank along CC.

[0045] In the figure: 1-industrial solid waste disposal site, 100-intercepting ditch, 101-branch seepage assembly, 102-main seepage assembly, 103-initial dam, 104-compacted foundation layer, 105-clay cushion layer, 106-sodium bentonite blanket layer, 107-rough surface HDPE membrane, 108-non-woven geotextile, 109-rock foundation layer, 110-C20 shotcrete layer, 111-bottom geotextile, 112-HDPE flower pipe, 113-gravel, 114-seepage ditch, 2-drainage pipe A, 3-energy dissipation device, 300-energy dissipation Pool, 301-first transverse partition wall, 302-second transverse partition wall, 303-energy dissipation plate, 304-first energy dissipation chamber, 305-second energy dissipation chamber, 306-liquid hole, 307-third energy dissipation chamber, 308-energy dissipation pile, 309-second longitudinal partition wall, 310-first longitudinal partition wall, 311-four-cone energy dissipation body, 4-energy dissipation pipe group, 40-drain pipe B, 41-spiral plate, 42-energy dissipation tooth, 5-water outlet energy dissipator, 50-bottom plate, 51-drainage box, 52-drainage port, 53-valve core, 6-leachate collection pool. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0047] Embodiment 1:

[0048] like Figures 1 to 11 As shown, a leachate drainage and anti-seepage membrane energy dissipation protection device described in the present invention includes an industrial solid waste disposal site 1, an energy dissipation device 3 and a leachate collection tank 6. The energy dissipation device 3 is connected to the industrial solid waste disposal site 1 through a drainage pipe A2 or an energy dissipation pipe group 4. A water outlet energy dissipator 5 is placed in the leachate collection tank 6, and the water outlet energy dissipator 5 is connected to the energy dissipation device 3 through the energy dissipation pipe group 4. When the energy dissipation device 3 is connected to the industrial solid waste disposal site 1 through the drain pipe A2, the leachate in the industrial solid waste disposal site 1 is discharged into the energy dissipation device 3 through the drain pipe A2, and then the leachate is subjected to primary energy dissipation through the energy dissipation device 3, secondary energy dissipation through the energy dissipation pipe group 4, and tertiary energy dissipation through the outlet energy dissipator 5. Then the leachate is discharged into the leachate collection tank 6, which greatly reduces the kinetic energy and flow rate of the leachate, improves the energy dissipation effect on the leachate, and basically eliminates the influence of the hydraulic impact and hydraulic disturbance of the leachate on the anti-seepage membrane in the leachate collection tank 6, thereby effectively avoiding the rupture of the anti-seepage membrane, ensuring the integrity of the anti-seepage membrane, and ensuring the safe and stable operation of the leachate collection tank 6.

[0049] When the energy dissipation device 3 is connected to the industrial solid waste disposal site 1 through the energy dissipation pipe group 4, the leachate discharged from the industrial solid waste disposal site 1 is sequentially subjected to primary energy dissipation through the energy dissipation pipe group 4, secondary energy dissipation through the energy dissipation device 3, tertiary energy dissipation through the energy dissipation pipe group 4, and quaternary energy dissipation through the outlet energy dissipator 5. Then the leachate is discharged into the leachate collection tank 6, which significantly reduces the kinetic energy and flow rate of the leachate, improves the energy dissipation effect on the leachate, and basically eliminates the influence of the hydraulic impact and hydraulic disturbance of the leachate on the anti-seepage membrane in the leachate collection tank 6, thereby effectively avoiding the rupture of the anti-seepage membrane, ensuring the integrity of the anti-seepage membrane, and ensuring the safe and stable operation of the leachate collection tank 6.

[0050] The bottom of the industrial solid waste disposal site 1 is provided with a bottom anti-seepage component, and the slope of the reservoir area of ​​the industrial solid waste disposal site 1 is provided with a perimeter anti-seepage component, and the perimeter anti-seepage component is cold-lapped or hot-welded to the bottom anti-seepage component, and the bottom anti-seepage component and the perimeter anti-seepage component are jointly provided with a leachate collection and drainage mechanism. When in use, a drainage ditch 100 is built around the industrial solid waste disposal site 1. Cold lap refers to applying a base treatment agent on the rough surface HDPE film 107 and then applying a polyurethane primer, and bonding the HDPE films 107 to be connected together through the polyurethane primer; hot welding connection refers to welding the HDPE films 107 to be connected through a hot welding machine.

[0051] The reservoir bottom anti-seepage component includes a compacted base layer 104, a clay cushion layer 105, a sodium-based bentonite blanket layer 106, a rough HDPE membrane 107 and a non-woven geotextile 108 which are laid in sequence from bottom to top.

[0052] When the slope of the reservoir area slope is greater than 1:2, the reservoir perimeter anti-seepage assembly includes a geotechnical foundation layer 109, a C20 sprayed concrete layer 110, a bottom geotextile 111, a rough surface HDPE membrane 107, and a non-woven geotextile 108 laid in sequence from bottom to top; when the slope of the reservoir area slope is not greater than 1:2, the reservoir perimeter anti-seepage assembly includes a compacted foundation layer 104, a sodium-based bentonite blanket layer 106, a rough surface HDPE membrane 107, and a non-woven geotextile 108 laid in sequence from bottom to top. It is preferred to lay a sodium-based bentonite blanket layer 106 on the reservoir area slope to ensure that the reservoir perimeter anti-seepage assembly has a good anti-seepage effect; however, when the slope of the reservoir area slope is greater than 1:2, the stability of laying a sodium-based bentonite blanket layer 106 on the reservoir area slope is poor, so at this time, it is adjusted to set a C20 sprayed concrete layer 110 on the reservoir area slope. Specifically, the rough surface HDPE membrane 107 and non-woven geotextile 108 in the reservoir periphery anti-seepage component are laid together with the rough surface HDPE membrane 107 and non-woven geotextile 108 in the reservoir bottom anti-seepage component to ensure that the anti-seepage component has a good anti-seepage effect.

[0053] The leachate collection and drainage mechanism includes a main seepage component 102 and a plurality of branch seepage components 101, one end of the main seepage component 102 extends to the initial dam 103 of the industrial solid waste disposal site 1, and a plurality of branch seepage components 101 are arranged on both sides of the main seepage component 102, and one end of the branch seepage component 101 is connected to the main seepage component 102. When in use, the leachate in the industrial solid waste disposal site 1 is collected by the plurality of branch seepage components 101, and the leachate collected by all the branch seepage components 101 is collected by the main seepage component 102, and the leachate is drained to the drainage pipe A2 or the energy dissipation pipe group 4 between the industrial solid waste disposal site 1 and the energy dissipation device 3, so as to timely discharge the leachate in the industrial solid waste disposal site 1, and ensure the safe and stable operation of the industrial solid waste disposal site 1.

[0054] The cross-sectional structure of the branch infiltration component 101 is consistent with the cross-sectional structure of the main infiltration component 102. The main infiltration component 102 includes an infiltration ditch 114 and a HDPE flower pipe 112. The HDPE flower pipe 112 is located in the infiltration ditch 114. Gravel 113 is filled around the HDPE flower pipe 112 in the infiltration ditch 114, and the HDPE flower pipe 112 and the gravel 113 around it are wrapped together in the non-woven geotextile 108. When in use, the leachate is mainly drained through the HDPE flower pipe 112, and the gravel 113 is filled around the HDPE flower pipe 112 in the infiltration ditch 114 to protect the HDPE flower pipe 112, which improves the installation stability of the HDPE flower pipe 112 on the one hand, and can effectively avoid the blockage of the liquid holes on the HDPE flower pipe 112 on the other hand. The HDPE flower pipe 112 and the gravel 113 around it are wrapped together in the non-woven geotextile 108, and the leachate in the industrial solid waste is filtered and separated by the non-woven geotextile 108, so as to prevent other debris from entering the gaps of the gravel 113 and the HDPE flower pipe 112 and causing blockage.

[0055] One end of the drainage pipe A2 or the energy dissipation pipe group 4 between the energy dissipation device 3 and the industrial solid waste disposal site 1 passes through the initial dam 103 and is connected to one end of the main seepage component 102 close to the initial dam 103 .

[0056] The energy dissipation device 3 includes an energy dissipation pool 300, in which a first transverse partition wall 301 and a second transverse partition wall 302 are arranged side by side, and a liquid hole 306 is provided at the upper part of the first transverse partition wall 301, and a liquid hole 306 is also provided at the lower part of the second transverse partition wall 302. The first transverse partition wall 301 and the second transverse partition wall 302 divide the energy dissipation pool 300 into a first energy dissipation chamber 304, a second energy dissipation chamber 305 and a third energy dissipation chamber 307 in sequence. The first transverse partition wall 301 and the first energy dissipation chamber 304 are both arranged close to the liquid inlet of the energy dissipation pool 300, and an energy dissipation pile 308 is provided in the first energy dissipation chamber 304, and the energy dissipation pile 308 is located below the liquid outlet of the drainage pipe A2 or the energy dissipation pipe group 4 between the energy dissipation device 3 and the industrial solid waste disposal site 1. After the leachate enters the energy dissipation pool 300, the energy dissipation of the leachate is performed once by the energy dissipation pile 308, the energy dissipation of the leachate is performed twice by the first transverse partition wall 301, and the energy dissipation of the leachate is performed three times by the second transverse partition wall 302. The energy dissipation effect of the energy dissipation pool 300 is good. The energy dissipation pile 308 in the first energy dissipation chamber 304 has a dispersed energy dissipation effect on the leachate on the one hand, and can prevent the hydraulic impact load from scouring and damaging the bottom plate of the energy dissipation pool 300 on the other hand. The top surfaces of the first transverse partition wall 301 and the second transverse partition wall 302 are coplanar, and the purpose of energy dissipation is achieved by opening liquid holes 306 on the upper part of the first transverse partition wall 301 and the lower part of the second transverse partition wall 302. With this energy dissipation structure, the liquid level of the leachate in the energy dissipation pool 300 is generally not higher than the top surfaces of the first transverse partition wall 301 and the second transverse partition wall 302, so there is no technical problem in the prior art that the energy dissipation effect of some partition walls on the leachate is significantly reduced or even lost.

[0057] The energy dissipation pile 308 is formed by stacking a plurality of four-cone energy dissipation bodies 311 in a disordered manner. The four-cone energy dissipation body 311 includes four cones, and the large ends of the four cones are connected together, and the small ends extend in different directions. The four-cone energy dissipation body 311 includes four cones. This structure can increase the contact time and contact area between the leachate and the four-cone energy dissipation body 311, and effectively disperse the leachate to improve the energy dissipation effect on the leachate.

[0058] A plurality of energy dissipation plates 303 are alternately arranged on the first transverse partition wall 301 and the second transverse partition wall 302 in the second energy dissipation chamber 305 from top to bottom, and the energy dissipation plates 303 on the first transverse partition wall 301 and the energy dissipation plates 303 on the second transverse partition wall 302 partially overlap in projection on the bottom plate of the second energy dissipation chamber 305;

[0059] A plurality of energy dissipation plates 303 are alternately arranged from top to bottom in the third energy dissipation chamber 307 on the second transverse partition wall 302 and the side wall of the energy dissipation pool 300 opposite to the second transverse partition wall 302, and the projections of the energy dissipation plates 303 on the second transverse partition wall 302 and the energy dissipation plates 303 on the side wall of the energy dissipation pool 300 on the bottom plate of the third energy dissipation chamber 307 partially overlap. The leachate entering the second energy dissipation chamber 305 through the liquid hole 306 at the upper part of the first transverse partition wall 301 is dissipated by the plurality of energy dissipation plates 303 in the process of flowing from top to bottom, thereby improving the energy dissipation effect of the energy dissipation pool 300; similarly, the leachate entering the third energy dissipation chamber 307 through the liquid hole 306 at the lower part of the second transverse partition wall 302 is dissipated by the plurality of energy dissipation plates 303 in the process of flowing from bottom to top, thereby improving the energy dissipation effect of the energy dissipation pool 300. The energy dissipation plates 303 on the first transverse partition wall 301 and the energy dissipation plates 303 on the second transverse partition wall 302 partially overlap in their projections on the bottom plate of the second energy dissipation chamber 305, and the energy dissipation plates 303 on the second transverse partition wall 302 and the energy dissipation plates 303 on the side walls of the energy dissipation pool 300 partially overlap in their projections on the bottom plate of the third energy dissipation chamber 307, so that the path of the leachate flowing through the energy dissipation plates 303 in the second energy dissipation chamber 305 and the third energy dissipation chamber 307 is S-shaped, so as to extend the energy dissipation path of the leachate, which can significantly improve the energy dissipation effect of the energy dissipation pool 300 on the leachate.

[0060] Two first longitudinal partition walls 310 are arranged side by side in the second energy dissipation chamber 305, and two second longitudinal partition walls 309 are arranged side by side in the third energy dissipation chamber 307, and the lower parts of the first longitudinal partition wall 310 and the second longitudinal partition wall 309 are provided with liquid holes 306. When in use, the first longitudinal partition wall 310 and the second longitudinal partition wall 309 are perpendicular to the first transverse partition wall 301 and the second transverse partition wall 302, and the structural strength and structural stability of the energy dissipation pool 300 are improved by the first longitudinal partition wall 310 and the second longitudinal partition wall 309, so as to avoid deformation of the energy dissipation pool 300 due to oversize. At the same time, the energy dissipation plate 303 is connected to the first longitudinal partition wall 310 or the second longitudinal partition wall 309, and the first longitudinal partition wall 310 and the second longitudinal partition wall 309 also have the function of improving the installation stability of the energy dissipation plate 303.

[0061] The energy dissipation pipe group 4 includes a drain pipe B40, in which a spiral plate 41 is provided, and a plurality of energy dissipation teeth 42 are provided on the upper surface of the spiral plate 41. When in use, the width of the spiral plate 41 is consistent with the inner hole radius of the drain pipe B40, and the energy of the leachate flowing through the drain pipe B40 is dissipated by the spiral plate 41 and the plurality of energy dissipation teeth 42 thereon.

[0062] The water outlet energy dissipator 5 includes a bottom plate 50 and a drainage box 51. The drainage box 51 is arranged on the bottom plate 50, and a plurality of drainage ports 52 are opened in the upper part of the drainage box 51 in the horizontal direction. The liquid outlet end of the energy dissipation pipe group 4 between the water outlet energy dissipator 5 and the energy dissipation device 3 extends to the lower part of the drainage box 51. The leachate flows in from the lower part of the drainage box 51 and then flows out through the drainage port 52 at the upper part of the drainage box 51, so that the leachate is dissipated through the drainage box 51.

[0063] The energy dissipation pipe group 4 is slidably connected to the through hole on the top of the drainage box 51, and the bottom plate 50 is an inflatable cushion, and the inflatable cushion is provided with a valve core 53. The bottom plate 50 is an inflatable cushion, and when the leachate flows into the empty leachate collection tank 6, the inflatable cushion protects the anti-seepage membrane at the bottom of the leachate collection tank 6 to prevent the leachate from directly impacting the anti-seepage membrane. At the same time, the inflatable cushion has a buffering and vibration reduction effect on the hydraulic impact load of the leachate, and further protects the anti-seepage membrane at the bottom of the leachate collection tank 6. Since the bottom plate 50 is an inflatable cushion and the drain pipe B40 is slidably connected to the through hole on the top of the drainage box 51, when a certain amount of leachate is stored in the leachate collection tank 6, the entire water outlet energy dissipator 5 will float up under the buoyancy of the inflatable cushion, thereby separating from the anti-seepage membrane at the bottom of the filtrate collection tank 6, so that the anti-seepage membrane at the bottom of the filtrate collection tank 6 is no longer affected by the hydraulic impact and hydraulic disturbance of the leachate, thereby ensuring the safe and stable operation of the leachate collection tank 6.

[0064] Embodiment 2:

[0065] The difference between the second embodiment and the first embodiment is that the width of the spiral plate 41 is much smaller than the inner hole radius of the drain pipe B40, similar to the internal thread of the nut, so as to preferentially ensure that the energy dissipation pipe group 4 has a larger drainage flow rate.

Claims

1. A leachate drainage and anti-seepage membrane energy dissipation protection device, characterized in that: The invention comprises an industrial solid waste disposal site (1), an energy dissipation device (3) and a leachate collection pool (6); the energy dissipation device (3) is connected to the industrial solid waste disposal site (1) via a drainage pipe A (2) or an energy dissipation pipe group (4); a water outlet energy dissipator (5) is placed in the leachate collection pool (6); and the water outlet energy dissipator (5) is connected to the energy dissipation device (3) via the energy dissipation pipe group (4).

2. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 1, characterized in that: The bottom of the industrial solid waste disposal site (1) is provided with a bottom anti-seepage component, and the slope of the reservoir area of ​​the industrial solid waste disposal site (1) is provided with a perimeter anti-seepage component, and the perimeter anti-seepage component is connected to the bottom anti-seepage component by cold lap joint or hot welding, and the bottom anti-seepage component and the perimeter anti-seepage component are both provided with a leachate collection and drainage mechanism.

3. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 2, characterized in that: The reservoir bottom anti-seepage component comprises a compacted base layer (104), a clay cushion layer (105), a sodium-based bentonite blanket layer (106), a rough surface HDPE film (107) and a non-woven geotextile (108) which are laid in sequence from bottom to top.

4. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 2, characterized in that: When the slope of the reservoir area slope is greater than 1:2, the reservoir perimeter anti-seepage component comprises a rock soil foundation layer (109), a C20 shotcrete layer (110), a bottom geotextile (111), a rough surface HDPE membrane (107) and a non-woven geotextile (108) laid in sequence from bottom to top; when the slope of the reservoir area slope is not greater than 1:2, the reservoir perimeter anti-seepage component comprises a compacted foundation layer (104), a sodium-based bentonite blanket layer (106), a rough surface HDPE membrane (107) and a non-woven geotextile (108) laid in sequence from bottom to top.

5. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 2, characterized in that: The leachate collection and drainage mechanism comprises a main leachate assembly (102) and a plurality of branch leachate assemblies (101), one end of the main leachate assembly (102) extends to an initial dam (103) of an industrial solid waste disposal site (1), the plurality of branch leachate assemblies (101) are arranged on both sides of the main leachate assembly (102), and one end of the branch leachate assembly (101) is connected to the main leachate assembly (102).

6. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 5, characterized in that: The cross-sectional structure of the branch infiltration component (101) is consistent with the cross-sectional structure of the main infiltration component (102). The main infiltration component (102) comprises an infiltration ditch (114) and a HDPE flower pipe (112). The HDPE flower pipe (112) is located in the infiltration ditch (114). Gravel (113) is filled around the HDPE flower pipe (112) in the infiltration ditch (114). The HDPE flower pipe (112) and the gravel (113) around it are wrapped together in a non-woven geotextile (108).

7. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 5, characterized in that: One end of the drainage pipe A (2) or the energy dissipation pipe group (4) between the energy dissipation device (3) and the industrial solid waste disposal site (1) passes through the initial dam (103) and is connected to an end of the main seepage component (102) close to the initial dam (103).

8. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 1, characterized in that: The energy dissipation device (3) comprises an energy dissipation pool (300), wherein a first transverse partition wall (301) and a second transverse partition wall (302) are arranged side by side in the energy dissipation pool (300), and a liquid passage hole (306) is arranged at the upper part of the first transverse partition wall (301), and a liquid passage hole (306) is also arranged at the lower part of the second transverse partition wall (302). The first transverse partition wall (301) and the second transverse partition wall (302) divide the energy dissipation pool (300) into a first transverse partition wall (301) and a second transverse partition wall (302) in sequence. The energy dissipation chamber (304), the second energy dissipation chamber (305) and the third energy dissipation chamber (307), the first transverse partition wall (301) and the first energy dissipation chamber (304) are all arranged close to the liquid inlet of the energy dissipation pool (300), and an energy dissipation pile (308) is arranged in the first energy dissipation chamber (304), and the energy dissipation pile (308) is located below the liquid outlet of the drainage pipe A (2) or the energy dissipation pipe group (4) between the energy dissipation device (3) and the industrial solid waste disposal site (1).

9. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 8, characterized in that: The energy dissipation pile (308) is formed by stacking a plurality of four-cone energy dissipation bodies (311) in a disordered manner. The four-cone energy dissipation body (311) includes four cones, and the large ends of the four cones are connected together, and the small ends extend in different directions.

10. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 8, characterized in that: A plurality of energy dissipation plates (303) are alternately arranged on the first transverse partition wall (301) and the second transverse partition wall (302) from top to bottom in the second energy dissipation chamber (305), and the projections of the energy dissipation plates (303) on the first transverse partition wall (301) and the energy dissipation plates (303) on the second transverse partition wall (302) on the bottom plate of the second energy dissipation chamber (305) partially overlap; A plurality of energy dissipation plates (303) are alternately arranged on the second transverse partition wall (302) and on the side wall of the energy dissipation pool (300) opposite to the second transverse partition wall (302) in a third energy dissipation chamber (307) from top to bottom, and the projections of the energy dissipation plates (303) on the second transverse partition wall (302) and the energy dissipation plates (303) on the side wall of the energy dissipation pool (300) on the bottom plate of the third energy dissipation chamber (307) partially overlap.

11. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 10, characterized in that: Two first longitudinal partition walls (310) are arranged side by side in the second energy dissipation chamber (305), and two second longitudinal partition walls (309) are arranged side by side in the third energy dissipation chamber (307), and liquid holes (306) are arranged at the bottom of the first longitudinal partition wall (310) and the second longitudinal partition wall (309).

12. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 1, characterized in that: The energy dissipation pipe group (4) comprises a drainage pipe B (40), a spiral plate (41) is arranged inside the drainage pipe B (40), and a plurality of energy dissipation teeth (42) are arranged on the upper surface of the spiral plate (41).

13. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 1, characterized in that: The water outlet energy dissipator (5) comprises a bottom plate (50) and a drainage box (51), wherein the drainage box (51) is arranged on the bottom plate (50), and a plurality of drainage ports (52) are provided at the upper portion of the drainage box (51) in a horizontal direction; and a liquid outlet end of the energy dissipation pipe group (4) between the water outlet energy dissipator (5) and the energy dissipation device (3) extends to the lower portion of the drainage box (51).

14. The leachate drainage and anti-seepage membrane energy dissipation protection device according to claim 13, characterized in that: The energy dissipation pipe group (4) is slidably connected to the through hole at the top of the drainage box (51); the bottom plate (50) is an inflatable cushion, and a valve core (53) is provided on the inflatable cushion.

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