Multi-layer composite reinforced filtering drainage net pad

Abstract

The utility model discloses a multi-layer composite reinforced filtering drainage net pad which comprises a bottom filtering structure and a 3D (three-dimensional) filtering layer arranged on the upper layer of the bottom filtering structure, a high-strength reinforced layer is arranged on the upper surface of the 3D filtering layer; the thickness range of the filtering drainage net pad is 10 mm-30 mm. According to the filtering drainage net pad, the bottom filtering layer and the 3D filtering layer are designed, the compression resistance and tear resistance of the drainage net pad are improved, meanwhile, the 3D filtering layer can filter out most sundries, and the non-woven fabric layer is prevented from being blocked by mud, sand and the sundries.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration and drainage, in particular to a multi-layer composite reinforced filtration and drainage mesh pad applicable to landfills such as waste landfills and mine landfills. Background Technique

[0002] At present, more and more waste landfills and mine landfills are being built. How to better solve the bottom filtration problem of landfills is also a more concerned issue for enterprises and units. In the prior art, generally only ordinary geotextiles, geomembranes, drainage pads, etc., products with a single form and single function are used. In actual use, the effect is not very ideal, so that various problems occur in many landfills after a long time, such as blockage, product breakage and tearing, etc.

[0003] Therefore, based on the above technical problems, those skilled in the art urgently need to develop a multi-layer composite reinforced filtration and drainage mesh pad. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-layer composite reinforced filtration and drainage mesh pad, which improves the compressive and tear resistance. The 3D three-dimensional filtration layer can filter out most of the sundries, prevent the mesh pad from being blocked, and only requires one-time construction as a whole, with simple operation and convenient construction.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-layer composite reinforced filtration and drainage mesh pad of the utility model, the filtration and drainage mesh pad includes:

[0007] A bottom filtration structure; and

[0008] A 3D three-dimensional filtration layer arranged on the upper layer of the bottom filtration structure;

[0009] A high-strength reinforcement layer is arranged on the upper surface of the 3D three-dimensional filtration layer;

[0010] The thickness range of the filtration and drainage mesh pad is 10mm to 30mm.

[0011] Further, the bottom filtration structure includes:

[0012] Two non-woven fabric layers; and

[0013] A drainage isolation pad arranged between the two non-woven fabric layers;

[0014] The non-woven fabric layer and the drainage isolation pad are compounded into one body by thermal bonding and shaping;

[0015] The material of the non-woven fabric layer is polypropylene filament non-woven fabric.

[0016] Furthermore, the thickness of the 3D three-dimensional filtering layer is 8 mm to 12 mm;

[0017] The 3D three-dimensional filtering layer is woven in an irregular manner by a structural matrix, and the structural matrix is strip-shaped.

[0018] Furthermore, the drainage isolation pad and the 3D three-dimensional filtering layer are made of polypropylene.

[0019] Furthermore, the high-strength reinforcing layer is configured as a grid structure;

[0020] The high-strength reinforcing layer includes:

[0021] A reinforcing rib group, and multiple reinforcing ribs are arranged side by side in the reinforcing rib group;

[0022] Multiple groups of the reinforcing rib groups are arranged at intervals in the transverse direction, and multiple groups of the reinforcing rib groups are arranged at intervals in the longitudinal direction;

[0023] The positions where the transversely arranged reinforcing rib groups and the longitudinally arranged reinforcing rib groups overlap are woven together to form a connecting part.

[0024] Furthermore, the 3D three-dimensional filtering layer and the bottom filtering structure are compounded into one body by thermal adhesion and shaping, and the high-strength reinforcing layer and the 3D three-dimensional filtering layer are compounded into one body by thermal adhesion and shaping.

[0025] In the above technical solution, a multi-layer composite reinforced filtering and drainage mesh pad provided by the present utility model has the following beneficial effects:

[0026] The filtering and drainage mesh pad of the present utility model is designed with a bottom filtering layer and a 3D three-dimensional filtering layer, which increases the compressive and tear resistance of the drainage mesh pad. At the same time, the 3D three-dimensional filtering layer can filter out most of the sundries and prevent the non-woven fabric layer from being blocked by mud, sand and sundries.

[0027] The filtering and drainage mesh pad of the present utility model plays a role in guiding water through the drainage isolation pad between the two non-woven fabric layers, and has better drainage and filtering effects. The structure of the filtering and drainage mesh pad only requires one-time construction, with simple operation and convenient construction. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0029] Figure 1Schematic diagram of a multi-layer composite reinforced filter and drainage mesh pad provided by an embodiment of the present utility model;

[0030] Figure 2 Top view of a multi-layer composite reinforced filter and drainage mesh pad provided by an embodiment of the present utility model.

[0031] Explanation of reference numerals:

[0032] Non-woven fabric layer; 2. Drainage isolation pad; 3. 3D three-dimensional filter layer; 4. High-strength reinforcement layer;

[0033] 401. Reinforcing rib; 402. Connecting part. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] See Figures 1 to 2 as shown;

[0036] This embodiment discloses a multi-layer composite reinforced filter and drainage mesh pad, which includes:

[0037] Bottom filter structure; and

[0038] A 3D three-dimensional filter layer 3 provided on the upper layer of the bottom filter structure;

[0039] A high-strength reinforcement layer 4 is provided on the upper surface of the 3D three-dimensional filter layer 3;

[0040] The thickness range of the filter and drainage mesh pad is 10 mm to 30 mm.

[0041] Specifically, this embodiment discloses a composite filter and drainage mesh pad structure, which includes a bottom filter structure and a top filter structure; wherein, the bottom filter structure is located at the bottom, on which a 3D three-dimensional filter layer 3 is provided, and a high-strength reinforcement layer 4 is provided on the surface of the 3D three-dimensional filter layer 3; through the two pairs of filter structures, the filtering effect can be further improved, achieving the effects of filtering impurities and draining water. At the same time, the thickness is increased, and the high-strength reinforcement layer 4 provided on the upper surface can improve the overall compressive and tear resistance of the mesh pad.

[0042] Preferably, the bottom filter structure of this embodiment includes:

[0043] Two non-woven fabric layers 1; and

[0044] A drainage isolation pad 2 provided between the two non-woven fabric layers 1;

[0045] The non-woven fabric layer 1 and the drainage isolation pad 2 are thermally bonded and shaped into one body;

[0046] The material of the non-woven fabric layer 1 is polypropylene filament non-woven fabric.

[0047] First of all, this embodiment further defines the composition of the bottom filtration structure, which includes two non-woven fabric layers 1, and a drainage isolation pad 2 arranged between the two non-woven fabric layers 1. In the prior art, the drainage isolation pad 2 is also woven from a structural matrix, and the weaving can be regular or irregular, aiming to form a plurality of internal filtration holes / drainage holes with different sizes and specific shapes.

[0048] The thickness of the 3D three-dimensional filtration layer 3 in this embodiment is 8 mm to 12 mm;

[0049] The 3D three-dimensional filtration layer 3 is woven by the structural matrix in an irregular manner, and the structural matrix is strip-shaped.

[0050] Similarly, the 3D three-dimensional filtration layer 3 in this embodiment is also woven according to a certain rule or irregularly; and a plurality of filtration holes / drainage holes with different sizes and specific shapes are formed inside it.

[0051] Preferably, the materials of the drainage isolation pad 2 and the 3D three-dimensional filtration layer 3 in this embodiment are polypropylene.

[0052] In order to further improve the structural strength and increase the tear resistance, the high-strength reinforcement layer 4 in this embodiment is configured as a grille net structure;

[0053] The high-strength reinforcement layer 4 includes:

[0054] A reinforcement rib group, and a plurality of reinforcement ribs 401 are arranged side by side in the reinforcement rib group;

[0055] A plurality of groups of reinforcement rib groups are arranged at intervals in the transverse direction, and a plurality of groups of reinforcement rib groups are arranged at intervals in the longitudinal direction;

[0056] The positions where the transversely arranged reinforcement rib group and the longitudinally arranged reinforcement rib group overlap are woven together to form a connecting part 402.

[0057] Preferably, the 3D three-dimensional filtration layer 3 in this embodiment and the bottom filtration structure are compounded into one body by thermal adhesion and shaping, and the high-strength reinforcement layer 4 and the 3D three-dimensional filtration layer 3 are compounded into one body by thermal adhesion and shaping.

[0058] In the above technical solution, a multi-layer composite reinforced filtration and drainage mesh pad provided by the present utility model has the following beneficial effects:

[0059] The filtration and drainage mesh pad of the present utility model is designed with a bottom filtration layer and a 3D three-dimensional filtration layer 3, which increases the compressive and tear resistance of the drainage mesh pad. At the same time, the 3D three-dimensional filtration layer 3 can filter out most of the sundries and prevent the non-woven fabric layer from being blocked by mud, sand and sundries.

[0060] The filter and drainage mesh pad of the utility model plays a water guiding role through the drainage isolation pad 2 between the two non-woven fabric layers 1, and has better drainage and filtration effects. The structure of the filter and drainage mesh pad only requires one-time construction, with simple operation and convenient construction.

[0061] Only some exemplary embodiments of the utility model have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the utility model. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the utility model.

Claims

1. A multi-layer composite reinforced filter drainage mesh mat, characterized in that, The filter and drainage mesh pad includes: a bottom filter structure; and a 3D three-dimensional filter layer (3) disposed on the upper layer of the bottom filter structure; a high-strength reinforcing layer (4) is disposed on the upper surface of the 3D three-dimensional filter layer (3); the thickness range of the filter and drainage mesh pad is 10 mm to 30 mm; the bottom filter structure includes: two non-woven fabric layers (1); and a drainage isolation pad (2) disposed between the two non-woven fabric layers (1); the non-woven fabric layer (1) and the drainage isolation pad (2) are integrally formed by thermal bonding and shaping; the material of the non-woven fabric layer (1) is polypropylene filament non-woven fabric; the thickness of the 3D three-dimensional filter layer (3) is 8 mm to 12 mm; the 3D three-dimensional filter layer (3) is woven in an irregular manner by a structural matrix, and the structural matrix is strip-shaped; the high-strength reinforcing layer (4) is configured as a grid structure; the high-strength reinforcing layer (4) includes: a reinforcing rib group, and the reinforcing rib group is provided with a plurality of reinforcing ribs (401) arranged side by side; a plurality of groups of the reinforcing rib groups are arranged at intervals in the transverse direction, and a plurality of groups of the reinforcing rib groups are arranged at intervals in the longitudinal direction; the positions where the laterally arranged reinforcing rib groups and the longitudinally arranged reinforcing rib groups overlap are woven together to form a connecting portion (402).

2. The multi-layer composite reinforced filter drainage mesh pad according to claim 1, wherein the material of the drainage isolation pad (2) and the 3D three-dimensional filter layer (3) is polypropylene.

3. A multi-layer composite reinforced filter and drainage mesh mat according to claim 1, characterized in that, the 3D three-dimensional filter layer (3) and the bottom filter structure are integrally formed by thermal bonding and shaping, and the high-strength reinforcing layer (4) and the 3D three-dimensional filter layer (3) are integrally formed by thermal bonding and shaping.

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