Buried gas guide gabion structure for ecological closure of refuse landfill

Abstract

The utility model discloses a buried gas guide gabion structure for ecological closure of a refuse landfill, and relates to the technical field of refuse landfill. The air guide device comprises an air guide solid pipe, an air guide floral pipe is fixedly arranged on the outer surface of the air guide solid pipe, a plurality of air guide holes are formed in the outer surface of the air guide floral pipe, a gravel flow guide layer is arranged on the outer surface of the air guide floral pipe, and a flow guide iron gauze is arranged on the outer surface of the gravel flow guide layer. A plurality of flow guide fixing frames are fixedly arranged on the outer surface of the flow guide iron gauze, and a landfill layer is arranged on the outer surface of the flow guide iron gauze. Gas can stably flow into the gas guide floral tube through the gas guide holes under the action of the gravel gas guide layer and the flow guide iron gauze; according to the gas guide gabion, the gas guide gabion has the efficient gas exhaust capacity, and the gas guide gabion can prevent gas from polluting ground soil through the gas guide solid pipe under the action of the gravel exhaust layer and the exhaust wire mesh.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage landfill, in particular to an underground air-conducting stone cage structure used for ecological closure of garbage landfills. Background Art

[0002] The harmless treatment methods for urban domestic waste widely used internationally mainly include landfill, incineration and composting. Several technologies can also be effectively integrated for more systematic and comprehensive treatment. The United States proposed the concept of "sanitary landfill" in the 1930s, and China has implemented the most extensive waste treatment technology, landfill. There are 1,748 sanitary landfills in my country. This waste treatment technology is to fill the garbage into a pool or a large pit, cover the contact part of the ground with the garbage with anti-seepage materials, and prevent the leachate from entering the groundwater and causing pollution; and lay drainage pipes at the bottom of the site to lead the leachate out of the site; set up a gas guide system in the garbage body to lead the landfill gas out for use or combustion; dig flood diversion ditches around the site to prevent floods from entering the site.

[0003] However, the prior art still has the following problems:

[0004] First of all, in the existing technology, when landfilling garbage, it is necessary to use gas-conducting gabions to discharge the gas generated by the garbage buried underground to prevent the gas from causing irreversible pollution to the soil when it stays underground for a long time. However, most of the gas-conducting gabions in the existing technology are not very effective in discharging gas, resulting in the inability to discharge the gas from the underground well.

[0005] Secondly, in the prior art, when landfilling garbage, it is necessary to use gas-conducting gabions to discharge the gas generated by the garbage buried underground. However, most of the gabion structures in the prior art are prone to polluting the soil on the ground when discharging the gas, resulting in the need for re-landfilling.

[0006] In view of the above problems, the inventors proposed an underground air-conducting gabion structure for ecological closure of landfills to solve the above problems. Utility Model Content

[0007] In order to solve the problem that most air-conducting gabions have unsatisfactory gas exhaust effects and are prone to pollute ground soil; the purpose of the utility model is to provide an underground air-conducting gabion structure for ecological closure of landfills.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions: an underground gas-conducting stone cage structure for ecological closure of a landfill, comprising a gas-conducting solid pipe, the gas-conducting solid pipe is used to allow gas to flow to the ground, the outer surface of the gas-conducting solid pipe is fixedly provided with a gas-conducting flower pipe, the gas-conducting flower pipe is used to collect gas generated by landfill garbage, the outer surface of the gas-conducting flower pipe is provided with a plurality of gas-conducting holes, the gas-conducting holes are used to allow gas to enter the gas-conducting flower pipe, forty gas-conducting holes are provided, and every four gas-conducting holes are distributed in a circular array on the outer surface of the gas-conducting flower pipe, the outer surface of the gas-conducting flower pipe is provided with a crushed stone guide layer, the outer surface of the crushed stone guide layer is provided with a guide wire mesh, and the outer surface of the guide wire mesh is fixed with a plurality of guide fixed holes. The diversion fixing frame is used to increase the stability of the diversion wire mesh. Four diversion fixing frames are provided, and the four diversion fixing frames are distributed in a rectangular array on the outer surface of the diversion wire mesh. The outer surface of the diversion wire mesh is provided with a landfill garbage layer. The outer surface of the air-conducting flower tube is provided with a soil drainage layer. The soil drainage layer is used to drain the water flow in the soil to avoid accumulation, blockage and infiltration. The lower end of the soil drainage layer is provided with a soil sealing layer. The soil sealing layer is used to separate the landfill garbage from the uncontaminated soil, and the inner surface of the soil sealing layer is connected to the outer surface of the air-conducting flower tube. The lower end of the diversion wire mesh is provided with a gravel drainage layer, and the upper end of the gravel drainage layer is connected to the lower end of the air-conducting flower tube, and the lower end of the gravel drainage layer is provided with a pollution sealing layer.

[0009] Preferably, a gravel air-conducting layer is provided on the outer surface of the air-conducting solid pipe, an exhaust wire mesh is provided on the outer surface of the gravel air-conducting layer, a plurality of exhaust fixing frames are fixedly provided on the outer surface of the exhaust wire mesh, the exhaust fixing frames are used to increase the stability of the exhaust wire mesh, four exhaust fixing frames are provided, and the four exhaust fixing frames are distributed in a rectangular array on the outer surface of the exhaust wire mesh, a gravel exhaust layer is provided on the upper end of the exhaust wire mesh, a soil covering layer is provided on the upper end of the gravel exhaust layer, the soil covering layer is used to provide nutrition to the green plant layer and further away from soil pollution, and a green plant layer is provided on the upper end of the soil covering layer.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model uses the air-conducting flower pipe, under the action of the crushed stone air-conducting layer and the guide wire mesh, to allow the gas to flow in stably through the air-conducting flower pipe through the air-conducting hole, and through the pollution sealing layer, it can prevent the polluted water from penetrating downward to pollute the groundwater, so that the air-conducting gabion has a high-efficiency gas discharge capacity;

[0012] 2. The utility model uses a gas-conducting solid pipe, which can discharge gas under the action of the crushed stone exhaust layer and the exhaust wire mesh, and has good sealing performance when discharging gas under the action of the soil covering layer, so that the gas-conducting stone cage can prevent gas from polluting the ground soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic cross-sectional view of the gas-conducting flower tube structure of the utility model.

[0016] Figure 3 It is a cross-sectional schematic diagram of the gas-guiding solid tube structure of the utility model.

[0017] In the figure: 1. diversion wire mesh; 2. exhaust wire mesh; 4. air-conducting flower pipe; 5. air-conducting hole; 6. soil drainage layer; 7. soil sealing layer; 8. diversion fixing frame; 9. gravel drainage layer; 10. pollution sealing layer; 11. landfill garbage layer; 13. gravel diversion layer; 14. air-conducting solid pipe; 15. green plant layer; 16. exhaust fixing frame; 17. gravel air-conducting layer; 19. gravel exhaust layer; 20. soil covering layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1: Figure 1-3As shown, the utility model provides an underground gas-guiding stone cage structure for ecological closure of a landfill, including a gas-guiding solid pipe 14, a gas-guiding flower pipe 4 is fixedly arranged on the outer surface of the gas-guiding solid pipe 14, a plurality of gas-guiding holes 5 are opened on the outer surface of the gas-guiding flower pipe 4, a crushed stone guide layer 13 is arranged on the outer surface of the crushed stone guide layer 13, a guide wire mesh 1 is arranged on the outer surface of the guide wire mesh 1, a plurality of guide fixing frames 8 are fixedly arranged on the outer surface of the guide wire mesh 1, a landfill garbage layer 11 is arranged on the outer surface of the guide wire mesh 1, and when the landfill garbage needs to be gasified, the landfill garbage layer 11 will generate gas, and the gas will When flowing, it will pass through the crushed stone diversion layer 13, and the gas can enter the interior of the gas-conducting flower tube 4 through the gas-conducting hole 5. The gas-conducting flower tube 4 can be discharged through the gas-conducting solid tube 14. The accumulated water generated by the landfill garbage layer 11 can be discharged through the crushed stone drainage layer 9, and the pollution sealing layer 10 can prevent the accumulated water generated by the landfill garbage layer 11 from penetrating downward and polluting the groundwater. The accumulated water generated on the ground can be discharged through the soil drainage layer 6, and the uncontaminated soil and water flow can be isolated from the landfill garbage layer 11 through the soil covering layer 20, so as to achieve the purpose of the gas-conducting gabion having efficient gas discharge capacity.

[0020] There are four guide fixing frames 8 , and the four guide fixing frames 8 are distributed on the outer surface of the guide wire mesh 1 in a rectangular array.

[0021] By adopting the above technical solution, the stability of the guide wire mesh 1 can be improved through the guide fixing frame 8, so that the gravel guide layer 13 is more stable under the action of the guide wire mesh 1.

[0022] The outer surface of the air-conducting flower tube 4 is provided with a soil drainage layer 6 , the lower end of the soil drainage layer 6 is provided with a soil sealing layer 7 , and the inner surface of the soil sealing layer 7 is connected to the outer surface of the air-conducting flower tube 4 .

[0023] By adopting the above technical solution, water can be discharged through the soil drainage layer 6, avoiding the formation of underground water that seeps downward.

[0024] There are forty air guide holes 5 , and every four air guide holes 5 are distributed on the outer surface of the air guide flower tube 4 in a circular array.

[0025] By adopting the above technical solution, the gas-guiding flower tube 4 can allow gas to flow into the interior of the gas-guiding flower tube 4 through the gas-guiding holes 5 .

[0026] A gravel drainage layer 9 is provided at the lower end of the guide wire mesh 1 , and the upper end of the gravel drainage layer 9 is connected to the lower end of the air guide flower tube 4 , and a pollution sealing layer 10 is provided at the lower end of the gravel drainage layer 9 .

[0027] By adopting the above technical solution, the polluted water flow can be discharged through the gravel drainage layer 9, and the polluted sealing layer 10 can prevent the polluted water flow from penetrating downward to pollute the groundwater.

[0028] Embodiment 2: Figure 3 As shown, the outer surface of the air-conducting solid pipe 14 is provided with a crushed stone air-conducting layer 17, the outer surface of the crushed stone air-conducting layer 17 is provided with an exhaust wire mesh 2, the outer surface of the exhaust wire mesh 2 is fixed with a plurality of exhaust fixing frames 16, and the upper end of the exhaust wire mesh 2 is provided with a crushed stone exhaust layer 19. When the gas in the air-conducting gabion needs to be discharged, the gas can be discharged through the air-conducting flower tube 4 and the air-conducting solid pipe 14. The crushed stone exhaust layer 19 cooperates with the exhaust wire mesh 2 to fix the air-conducting solid pipe 14. The crushed stone exhaust layer 19 can make the residual gas dissipate underground. The soil covering layer 20 can provide nutrients to the green plant layer 15 while improving the sealing performance. The green plant layer 15 can improve the aesthetics of the air-conducting gabion, so as to achieve the purpose of the air-conducting gabion preventing the gas from polluting the ground soil.

[0029] By adopting the above technical solution, the gas passing through the gas-conducting solid pipe 14 can have better gas sealing during the discharge process to prevent gas from overflowing.

[0030] A soil cover layer 20 is provided on the upper end of the gravel exhaust layer 19 , and a green plant layer 15 is provided on the upper end of the soil cover layer 20 .

[0031] By adopting the above technical solution, the green plant layer 15 can absorb a large amount of nutrients through the soil cover layer 20, so that the air-conducting gabion can improve the aesthetics through the green plant layer 15.

[0032] There are four exhaust fixing frames 16 , and the four exhaust fixing frames 16 are distributed on the outer surface of the exhaust wire mesh 2 in a rectangular array.

[0033] By adopting the above technical solution, the exhaust wire mesh 2 can improve its stability through the exhaust fixing frame 16, so that the gravel air guide layer 17 is more stable under the action of the exhaust wire mesh 2.

[0034] Working principle: When it is necessary to guide the landfill garbage, the landfill garbage layer 11 will generate gas. When the gas flows, it will pass through the gravel diversion layer 13 and the diversion wire mesh 1. The gas can enter the interior of the gas diversion flower tube 4 through the gas diversion hole 5. The gas diversion flower tube 4 can be discharged through the gas diversion solid tube 14. The accumulated water generated by the landfill garbage layer 11 can be discharged through the gravel drainage layer 9, and the pollution sealing layer 10 can prevent the accumulated water generated by the landfill garbage layer 11 from penetrating downward to pollute the groundwater. The accumulated water generated on the ground can be discharged through the soil drainage layer 6 and through the soil sealing layer 7 can isolate uncontaminated soil and water flow from the landfill garbage layer 11. When the gas in the air-conducting gabion needs to be discharged, the gas can be discharged through the air-conducting flower tube 4 and the air-conducting solid tube 14. The crushed stone air-conducting layer 17 can fix the air-conducting solid tube 14 in cooperation with the exhaust wire mesh 2. The crushed stone exhaust layer 19 can make the residual gas dissipate underground. The soil covering layer 20 can provide nutrients to the green plant layer 15 while improving the sealing performance. The green plant layer 15 can improve the aesthetics of the air-conducting gabion, so as to achieve the purpose of the air-conducting gabion having efficient gas discharge capacity and preventing gas from polluting the ground soil.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An underground gas-conducting gabion structure for ecological enclosure of a landfill, comprising a gas-conducting solid pipe (14), characterized in that: An air-conducting flower tube (4) is fixedly provided on the outer surface of the air-conducting solid tube (14), a plurality of air-conducting holes (5) are opened on the outer surface of the air-conducting flower tube (4), a crushed stone flow-conducting layer (13) is provided on the outer surface of the crushed stone flow-conducting layer (13), a flow-conducting wire mesh (1) is fixedly provided on the outer surface of the flow-conducting wire mesh (1), a plurality of flow-conducting fixing frames (8) are fixedly provided on the outer surface of the flow-conducting wire mesh (1), and a landfill garbage layer (11) is provided on the outer surface of the flow-conducting wire mesh (1).

2. The underground air-conducting gabion structure for ecological enclosure of landfill as claimed in claim 1, characterized in that: The outer surface of the gas-conducting solid pipe (14) is provided with a crushed stone gas-conducting layer (17), the outer surface of the crushed stone gas-conducting layer (17) is provided with an exhaust wire mesh (2), the outer surface of the exhaust wire mesh (2) is fixed with a plurality of exhaust fixing frames (16), and the upper end of the exhaust wire mesh (2) is provided with a crushed stone exhaust layer (19).

3. The underground air-conducting gabion structure for ecological closure of landfill as claimed in claim 1, characterized in that: Four flow guide fixing frames (8) are provided, and the four flow guide fixing frames (8) are distributed on the outer surface of the flow guide wire mesh (1) in a rectangular array.

4. The underground air-conducting gabion structure for ecological closure of landfill as claimed in claim 1, characterized in that: The outer surface of the air-conducting flower tube (4) is provided with a soil drainage layer (6), the lower end of the soil drainage layer (6) is provided with a soil sealing layer (7), and the inner surface of the soil sealing layer (7) is connected to the outer surface of the air-conducting flower tube (4).

5. The underground air-conducting gabion structure for ecological closure of landfill as claimed in claim 1, characterized in that: Forty air guide holes (5) are provided, and every four air guide holes (5) are distributed on the outer surface of the air guide flower tube (4) in a circular array.

6. The underground air-conducting gabion structure for ecological closure of landfill as claimed in claim 1, characterized in that: A crushed stone drainage layer (9) is provided at the lower end of the guide wire mesh (1), and the upper end of the crushed stone drainage layer (9) is connected to the lower end of the air guide flower tube (4), and a pollution sealing layer (10) is provided at the lower end of the crushed stone drainage layer (9).

7. The underground air-conducting gabion structure for ecological enclosure of landfill as claimed in claim 2, characterized in that: A soil covering layer (20) is provided at the upper end of the crushed stone exhaust layer (19), and a green plant layer (15) is provided at the upper end of the soil covering layer (20).

8. The underground air-conducting gabion structure for ecological closure of landfill as claimed in claim 2, characterized in that: Four exhaust fixing frames (16) are provided, and the four exhaust fixing frames (16) are distributed on the outer surface of the exhaust wire mesh (2) in a rectangular array.

Images