Composite three-dimensional guide and drainage mesh pad

Abstract

The utility model relates to a composite three-dimensional guide and drainage mesh pad which comprises a guide plate, and the top surface and the bottom surface of the guide plate are respectively and fixedly connected with a filter layer; the flow guide plate is composed of a plurality of module groups, and each module group is formed by fixedly connecting a group of basic combined modules; each basic combination module is provided with a group of rib plates which are parallel to each other and are vertically arranged, the tail ends of the adjacent rib plates are fixedly connected through a connecting edge, and a permeable gap is formed between the adjacent rib plates; the outer side of each basic combination module extends to form an extension edge, and each extension edge is provided with a connecting buckle protrusion or a connecting buckle inserting groove. The inner side of each basic combination module is fixedly connected with the adjacent basic combination module through a hollow transition plate; and the adjacent module groups are clamped through the corresponding connecting buckle bulges and the connecting buckle slots so as to form fixed connection. The percolate guiding and discharging device is firm in structure, high in guiding and discharging capacity and capable of meeting the percolate guiding and discharging requirement of a solid waste landfill; the whole device is simple and light, and can be mounted into various sizes to meet the requirements of different landfills.

Description

Technical Field

[0001] The utility model relates to a composite three-dimensional drainage net pad, belonging to the technical field of solid waste landfill treatment. Background Art

[0002] As far as the inventor knows, garbage disposal methods can generally be divided into several methods such as sanitary landfill, incineration, and composting. Among them, sanitary landfill of garbage is widely used in China because of its low cost and good hygiene. In addition, the fly ash produced after garbage incineration, as well as the final disposal of general industrial solid waste and hazardous waste are also sent to landfills. Since this type of solid waste itself contains moisture and factors such as rainfall, varying amounts of leachate will be generated during the landfill process. If it is allowed to flow into the ground, it will cause groundwater pollution. Therefore, the leachate needs to be drained and collected for post-treatment in accordance with national regulations.

[0003] According to the traditional design method, an anti-seepage layer is first added to the bottom of the landfill reservoir, and then 30 cm thick gravel is laid as the leachate drainage layer. The quality of the crushed stone processed into rounded gravel that meets the design requirements is difficult to control; in addition, the gravel is too heavy, which is inconvenient to transport and construct. Various factors have led to a continuous increase in the cost of use, and there is an urgent need to find a new device that can replace the gravel drainage layer.

[0004] After searching, it was found that the invention patent application with application number CN202311127572.1 and application publication number CN 117211250 A disclosed a new composite geonet with strong flow conductivity, including a mesh core and two geotextiles bonded to both sides of the mesh core, the mesh core includes two chessboard structures and a number of columns with a certain height, wherein the columns are arranged between the two chessboard structures, forming a vertical flow channel perpendicular to the chessboard structure and a parallel flow channel parallel to the chessboard structure, and the vertical flow channel and the parallel flow channel are connected. This technical solution is essentially a grid-like structure, and each grid is a rectangular parallelepiped with six sides completely hollowed out, so that the largest possible flow volume can be achieved, but this structure mainly uses columns as load-bearing components, and it is necessary to develop a technical solution with a more solid structure. Utility Model Content

[0005] The purpose of the utility model is to propose a composite three-dimensional drainage mesh mat in response to the problems existing in the above-mentioned prior art, which has a firm structure and strong drainage ability and can replace the gravel drainage layer to meet the demand for leachate drainage in solid waste landfills.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A composite three-dimensional drainage mesh pad comprises a guide plate as a skeleton, wherein the top and bottom surfaces of the guide plate are respectively fixedly connected with filter layers; the guide plate is composed of a plurality of module groups, each module group is respectively composed of a group of basic combination modules fixedly connected; each basic combination module has a group of ribs parallel to each other and arranged vertically, the ends of adjacent ribs are fixedly connected via connecting edges, and water-permeable gaps are formed between adjacent ribs; the outer sides of each basic combination module are respectively extended with extended edges, and each extended edge has a connecting buckle protrusion or a connecting buckle slot; the inner side of each basic combination module is fixedly connected to the adjacent basic combination module via a hollow transition plate; adjacent module groups are clamped with the connecting buckle slots via corresponding connecting buckle protrusions to form a fixed connection.

[0008] In this structure, filter layers are provided on the upper and lower sides of the guide plate, so that the entire mesh pad is in a sandwich state; in the guide plate, the basic combination module has a group of ribs and permeable gaps, and the basic combination modules constitute a module group. The module groups can be combined with each other and connected by connecting buckles to form a guide plate. In this way, multiple ribs can bear the weight together to achieve a strong structure and strong drainage capacity, which can meet the leachate drainage needs of solid waste landfills, is easy to transport and lay, and is conducive to adapting to the shape and size of the landfill site.

[0009] The further improved technical solutions of the utility model are as follows:

[0010] Preferably, the module group is composed of four basic combination modules, the basic combination modules are arranged in two rows, and the rib extension directions of adjacent basic combination modules are perpendicular to each other; each basic combination module has two extended edges.

[0011] More preferably, the basic combination modules are respectively a first basic combination module, a second basic combination module, a third basic combination module and a fourth basic combination module; the first basic combination module, the second basic combination module, the third basic combination module and the fourth basic combination module are arranged in a clockwise direction.

[0012] More preferably, the two extension sides of the first basic combination module respectively have a connecting buckle protrusion; the extension side of the second basic combination module close to the first basic combination module has a connecting buckle protrusion, and its extension side close to the third basic combination module has a connecting buckle slot; the two extension sides of the third basic combination module respectively have a connecting buckle slot; the extension side of the fourth basic combination module close to the third basic combination module has a connecting buckle slot, and its extension side close to the first basic combination module has a connecting buckle protrusion.

[0013] Preferably, in the basic combination module, adjacent ribs are connected by connecting edges to form a "U" shape, all ribs and connecting edges form a group of parallel arranged "U" shapes, and the opening directions of adjacent "U" shapes are opposite.

[0014] More preferably, when the connecting edge is located on the outside of the basic assembly module, the connecting edge coincides with the extended edge; when the connecting edge is located on the inside of the basic assembly module, the connecting edge is provided with a hollow opening communicating with the water-permeable gap.

[0015] By adopting the above preferred structure, the arrangement and specific structure of the basic combination modules can be further clarified, so that the connection method between the module groups is clear, ensuring that the module groups can be more easily combined and connected with each other so as to be laid and installed into various preset sizes.

[0016] Preferably, the filter layer and the guide plate are fixedly connected via plastic nails; the plastic nails include an upper gasket, a lower gasket, a plastic nail male buckle and a plastic nail female buckle, and the plastic nail male buckle passes through the lower gasket, the filter layer at the bottom of the guide plate, the guide plate, the filter layer at the top of the guide plate, the upper gasket and the plastic nail female buckle and are riveted in sequence.

[0017] More preferably, the plastic nail is a threaded plastic rivet.

[0018] By adopting the above preferred structure, the fixing method of the filter layer and the guide plate can be further clarified; the plastic nails used are supported by the male buckle and the female buckle to play a riveting role, and the upper gasket and the lower gasket are used to increase the force area of ​​the filter layer on the rivet, making the fixation more firm and reducing the use loss.

[0019] Preferably, the guide plate is made of plastic, and the filter layer is a geotextile mat filter layer, which can further ensure that the entire device is simple and light, easy to transport, and easy to install.

[0020] More preferably, the geomat adopts a three-dimensional thin-layer mesh structure. In this way, by utilizing the anti-filtration and drainage functions of the structure, solid waste can be prevented from entering the guide plate, and only leachate is allowed to flow.

[0021] When the utility model is used, according to the shape and size requirements of the solid waste landfill site, the basic combination modules are formed into a module group, and the module group is connected into a guide plate of suitable size through a connecting buckle; according to the size of the guide plate, the filter layer is cut into two pieces of the same size, which serve as two filter layers at the bottom and top of the guide plate; the guide plate and the two filter layers are fixed together; the installed composite three-dimensional drainage net pad can be put into use to replace the traditional gravel drainage layer in the landfill of solid waste such as garbage and fly ash.

[0022] The utility model has a firm structure and a strong drainage capacity, can meet the drainage needs of leachate in solid waste landfills, can effectively replace the gravel drainage layer, avoid the use of crushed stone, and thus reduce the environmental damage caused by stone mining and transportation; the overall device is simple and light, easy to transport, and easy to install, with the advantages of cost saving and low carbon and environmental protection; it can be installed in various sizes to meet the needs of different landfills, and is more flexible in application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model.

[0025] Figure 2 This is a schematic diagram of the structural explosion of Example 1 of the utility model.

[0026] Figure 3 This is a schematic diagram of the filter layer structure in Example 1 of the utility model.

[0027] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figures 1 to 4 As shown, the composite three-dimensional drainage mesh pad of this embodiment includes a guide plate 1 as a skeleton, and the top and bottom surfaces of the guide plate 1 are fixedly connected with a filter layer 2 respectively; the guide plate 1 is composed of a plurality of module groups, and each module group is respectively composed of a group of basic combination modules fixedly connected; each basic combination module has a group of ribs 3 parallel to each other and arranged vertically, and the ends of adjacent ribs 3 are fixedly connected by connecting edges 16, and water-permeable gaps 5 are formed between adjacent ribs 3; the outer side of each basic combination module is respectively extended with an extension edge 4, and each extension edge 4 has a connecting buckle protrusion 6 or a connecting buckle slot 7; the inner side of each basic combination module is fixedly connected to the adjacent basic combination module through a hollow transition plate 17; adjacent module groups are clamped with the connecting buckle slot 7 through the corresponding connecting buckle protrusion 6 to form a fixed connection.

[0030] In the basic combination module, adjacent ribs 3 are connected by connecting edges 16 to form a "U" shape, and all ribs 3 and connecting edges 16 form a group of parallel "U" shapes, and the opening directions of adjacent "U" shapes are opposite.

[0031] When the connecting edge 16 is located on the outside of the basic assembly module, the connecting edge 16 coincides with the extended edge 4 ; when the connecting edge 16 is located on the inside of the basic assembly module, the connecting edge 16 is provided with a hollow opening communicating with the water-permeable gap 5 .

[0032] In this embodiment, the module group is composed of four basic combination modules, which are arranged in two rows, and the ribs 3 of adjacent basic combination modules extend in directions perpendicular to each other; each basic combination module has two extension edges 4. The basic combination modules are respectively a first basic combination module 8, a second basic combination module 9, a third basic combination module 10 and a fourth basic combination module 11. The first basic combination module 8, the second basic combination module 9, the third basic combination module 10 and the fourth basic combination module 11 are arranged clockwise.

[0033] The two extended sides 4 of the first basic combination module 8 respectively have a connecting buckle protrusion 6; the extended side 4 of the second basic combination module 9 close to the first basic combination module 8 has a connecting buckle protrusion 6, and its extended side 4 close to the third basic combination module 10 has a connecting buckle slot 7; the two extended sides 4 of the third basic combination module 10 respectively have a connecting buckle slot 7; the extended side 4 of the fourth basic combination module 11 close to the third basic combination module 10 has a connecting buckle slot 7, and its extended side 4 close to the first basic combination module 8 has a connecting buckle protrusion 6.

[0034] The filter layer 2 is fixedly connected to the guide plate 1 via plastic nails; the plastic nails include an upper gasket 14, a lower gasket 15, a plastic nail male buckle 12 and a plastic nail female buckle 13, and the plastic nail male buckle 12 sequentially passes through the lower gasket 15, the filter layer 2 at the bottom of the guide plate 1, the guide plate 1, the filter layer 2 at the top of the guide plate 1, the upper gasket 14 and the plastic nail female buckle 13 for riveting. In this embodiment, the plastic nails are threaded plastic rivets.

[0035] In addition, the guide plate 1 is made of plastic, and the filter layer 2 is a geomat filter layer 2. The geomat adopts a three-dimensional thin-layer mesh structure (for example, a three-dimensional thin-layer mesh structure formed by melt-laid random fibers that is currently commonly used).

[0036] The specific use process of this embodiment is as follows:

[0037] (1) According to the shape and size requirements of the landfill site, the first basic assembly module 8, the second basic assembly module 9, the third basic assembly module 10 and the fourth basic assembly module 11 are assembled into a module group; the module group is connected into a suitable size through the connecting buckle protrusion 6 and the connecting buckle slot 7 to form a plastic skeleton guide plate 1.

[0038] (2) According to the size of the plastic skeleton guide plate 1, the geomat is cut into two pieces of the same size to serve as the upper and lower geomat filter layers 2 in the structure.

[0039] (3) The plastic skeleton guide plate 1 and the upper and lower geomat filter layers 2 are fixed together by plastic nail male buckles 12 and female buckles 13; thus, a three-layer sandwich structure is formed.

[0040] (4) The installed composite three-dimensional drainage mat can be used to replace the traditional gravel drainage layer in landfills of solid waste such as garbage and fly ash.

[0041] During implementation, general industrial solid waste and hazardous waste are blocked by the filter layer 2; the leachate is drained and collected by the ribs 3 and the permeable gaps 5 of the guide plate 1 for post-processing.

[0042] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A composite three-dimensional drainage mesh pad, comprising a guide plate as a skeleton, wherein the top and bottom surfaces of the guide plate are respectively fixedly connected with a filter layer; wherein: The guide plate is composed of a plurality of module groups, each of which is composed of a group of basic combination modules fixedly connected; each basic combination module has a group of ribs parallel to each other and arranged vertically, the ends of adjacent ribs are fixedly connected via connecting edges, and water-permeable gaps are formed between adjacent ribs; an extended edge is extended from the outer side of each basic combination module, and each extended edge has a connecting buckle protrusion or a connecting buckle slot; the inner side of each basic combination module is fixedly connected to the adjacent basic combination module via a hollow transition plate; adjacent module groups are clamped with the connecting buckle slots via corresponding connecting buckle protrusions to form a fixed connection.

2. The composite three-dimensional guide mesh pad according to claim 1, characterized in that: The module group is composed of four basic combination modules, which are arranged in two rows. The rib extension directions of adjacent basic combination modules are perpendicular to each other. Each basic combination module has two extension edges.

3. The composite three-dimensional guide mesh pad according to claim 2, characterized in that: The basic combination modules are respectively a first basic combination module, a second basic combination module, a third basic combination module and a fourth basic combination module; the first basic combination module, the second basic combination module, the third basic combination module and the fourth basic combination module are arranged in a clockwise direction.

4. The composite three-dimensional guide mesh pad according to claim 3, characterized in that: The two extension sides of the first basic combination module respectively have connecting buckle protrusions; the extension side of the second basic combination module close to the first basic combination module has a connecting buckle protrusion, and its extension side close to the third basic combination module has a connecting buckle slot; the two extension sides of the third basic combination module respectively have connecting buckle slots; the extension side of the fourth basic combination module close to the third basic combination module has a connecting buckle slot, and its extension side close to the first basic combination module has a connecting buckle protrusion.

5. The composite three-dimensional guide mesh pad according to claim 1, characterized in that: In the basic combination module, adjacent ribs are connected by connecting edges to form a "U" shape, and all ribs and connecting edges form a group of parallel arranged "U" shapes, and the opening directions of adjacent "U" shapes are opposite.

6. The composite three-dimensional drainage mesh pad according to claim 5, characterized in that: When the connecting edge is located on the outside of the basic combination module, the connecting edge coincides with the extended edge; when the connecting edge is located on the inside of the basic combination module, the connecting edge is provided with a hollow opening communicating with the water-permeable gap.

7. A composite three-dimensional drainage mesh pad according to any one of claims 1 to 6, characterized in that: The filter layer and the guide plate are fixedly connected via plastic nails; the plastic nails include an upper gasket, a lower gasket, a plastic nail male buckle and a plastic nail female buckle, and the plastic nail male buckle sequentially passes through the lower gasket, the filter layer at the bottom of the guide plate, the guide plate, the filter layer at the top of the guide plate, the upper gasket and the plastic nail female buckle for riveting.

8. The composite three-dimensional guide mesh pad according to claim 7, characterized in that: The plastic nail is a threaded plastic rivet.

9. A composite three-dimensional drainage mesh pad according to any one of claims 1 to 6, characterized in that: The guide plate is made of plastic, and the filter layer is a geomat filter layer.

10. The composite three-dimensional guide mesh pad according to claim 9, characterized in that: The geomat adopts a three-dimensional thin-layer mesh structure.

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