CN209873824U - Landfill district slope drainage gas recovery system - Google Patents
Landfill district slope drainage gas recovery system Download PDFInfo
- Publication number
- CN209873824U CN209873824U CN201920426681.6U CN201920426681U CN209873824U CN 209873824 U CN209873824 U CN 209873824U CN 201920426681 U CN201920426681 U CN 201920426681U CN 209873824 U CN209873824 U CN 209873824U
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- drainage
- guide
- landfill
- pipe
- refuse landfill
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- 238000011084 recovery Methods 0.000 title claims abstract description 11
- 238000002955 isolation Methods 0.000 claims abstract description 17
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 238000001914 filtration Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000010813 municipal solid waste Substances 0.000 description 13
- 238000005086 pumping Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229920006262 high density polyethylene film Polymers 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a side slope drainage gas recovery system in a refuse landfill area, which comprises a main drainage pipe, branch drainage pipes, a percolate collecting pool, an air pump and at least one isolation supporting layer; the isolation supporting layer is arranged in the refuse landfill region and divides the refuse landfill region into different refuse landfill layers; the guide and drainage main pipe is arranged along the slope of the refuse landfill area, the lower end of the guide and drainage main pipe is introduced into the percolate collecting tank, and the upper end of the guide and drainage main pipe is connected with an air pump; the guide and drainage branch pipes are respectively arranged at the bottom of the refuse landfill area and on each isolation supporting layer, one end of each guide and drainage branch pipe is inserted into the refuse landfill layer, and the other end of each guide and drainage branch pipe is communicated with the guide and drainage main pipe. In this way, the utility model discloses landfill district side slope drainage receives gas system, easily realizes, and is with low costs, and filtration liquid drainage guide and landfill gas collection efficiency are high, can eliminate the easy heap landslide problem that causes of filtration liquid that produces in landfill yard.
Description
Technical Field
The utility model relates to a landfill gas collection technical field, concretely relates to landfill district slope drainage gas collection system.
Background
The landfill gas recycling is resource recycling, changes waste into valuable, can be used for power generation or used as fuel energy, and is the most common utilization mode for gas engine power generation. The landfill gas power generation has the secondary pollution which needs to be treated unlike a waste incineration power plant, and after the landfill gas is collected in a centralized way, the landfill gas can also increase 20% of the capacity of a landfill reservoir of a refuse field, thereby meeting the policy of 'energy conservation and emission reduction' advocated by the state and the like.
In the landfill site, a large number of side slopes exist, the area of the side slopes accounts for a large proportion of the total area, but landfill gas in the side slope area is not collected well at present. In addition, although the garbage pile is usually covered with a HDPE film (high density polyethylene) to prevent external rainwater from washing the pile, if the leachate generated inside the landfill site is not smoothly drained, the leachate searches for an outlet to overflow on a slope, and slides down along the slope, so that the safety of the pile is affected, and the safety and stability are affected.
SUMMERY OF THE UTILITY MODEL
In order to solve one of the above-mentioned technical problem at least, the utility model provides a landfill district slope drainage gas recovery system.
The utility model adopts the technical proposal that: a side slope drainage gas recovery system for a refuse landfill region comprises a main drainage pipe, branch drainage pipes, a percolate collecting pool, an air pump and at least one isolation supporting layer; the isolation supporting layer is arranged in the refuse landfill region and divides the refuse landfill region into different refuse landfill layers; the guide and exhaust main pipe is arranged along the slope of the refuse landfill area, the lower end of the guide and exhaust main pipe is introduced into the percolate collecting tank, and the upper end of the guide and exhaust main pipe is connected with the air pump; the guide and discharge branch pipes are respectively arranged at the bottom of the refuse landfill area and on each isolation supporting layer, one end of each guide and discharge branch pipe is inserted into the refuse landfill layer, and the other end of each guide and discharge branch pipe is communicated with the guide and discharge header pipe.
According to the utility model relates to a concrete embodiment still includes the drainage guide blind ditch, the bottom in landfill district is located to the drainage guide blind ditch, and communicates the drainage guide branch pipe of landfill district bottom.
According to the utility model discloses a concrete embodiment, be equipped with a plurality of holes on inserting the intraformational one side pipe wall of landfill on the drainage guide branch pipe.
According to the utility model discloses a concrete embodiment, the parcel has the filter screen on one section drainage guide branch pipe that is equipped with the hole.
According to the utility model relates to a concrete embodiment, insert one side mouth of pipe department in the landfill layer on the drainage guide branch pipe and be equipped with the filter screen.
According to the utility model relates to a specific embodiment, the drainage guide branch pipe pass through the three-way pipe with the drainage guide house steward intercommunication.
According to the utility model discloses a concrete embodiment, the drainage guide branch pipe level is inserted and is located the landfill in situ.
According to a specific embodiment of the present invention, the lower end of the main conduit has a U-shaped pipe section; or the lower end of the guide and discharge header pipe is provided with a U-shaped pipe, and the U-shaped pipe is introduced into the percolate collecting tank.
According to the utility model discloses a specific embodiment, keep apart the supporting layer and be the tamped soil layer.
According to the utility model discloses a specific embodiment, the leading gang house steward with the leading gang branch pipe is all made with HDPE tubular product.
The utility model has the beneficial technical effects that: the utility model provides a landfill district slope drainage gas recovery system, it is through setting up the isolation supporting layer in the landfill district, divides the landfill district into different landfill layers to insert the row's branch pipe of leading of establishing intercommunication row's house steward in the landfill layer on landfill district bottom and each isolation supporting layer, the lower extreme intercommunication filtration liquid collecting pit of row's house steward, the aspiration pump is connected to the upper end. Through the above manner, on one hand, the isolation supporting layer can play a certain role in stably supporting the garbage pile body of the garbage landfill region; on the other hand, the landfill rubbish of the landfill area is layered through the isolation supporting layer, the percolate can be prevented from infiltrating too fast to a certain extent, the landslide of a garbage pile body is avoided, meanwhile, the landfill gas and the percolate in each landfill layer can be pumped out along the guide and drainage branch pipe through the air pumping of the air pumping pump and enter the guide and drainage main pipe, the landfill gas then goes upwards along the guide and drainage main pipe under the action of the air pumping pressure of the air pumping pump so as to be collected, the percolate goes downwards along the guide and drainage main pipe under the action of gravity and reaches the percolate collecting pool, and therefore the guide and drainage of the percolate in the landfill area and the collection of the landfill gas are achieved. The whole process is easy to realize, the cost is low, and by the above layering treatment, the percolate is to be drained and the landfill gas is high in collection efficiency, and the problem of stack landslide easily caused by percolate generated inside a landfill site can be solved.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of an embodiment of the side slope drainage gas collection system of the refuse landfill.
Detailed Description
The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The use of the terms "comprising" and "having" and any variations thereof herein, as used herein, are intended to cover non-exclusive inclusions, merely as a relative recitation of relative positions of elements in a figure, and thus, are not intended to exclude any other elements.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by a person skilled in the art that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic structural view of an embodiment of a side slope drainage and gas collection system of a refuse landfill. As shown in fig. 1, the slope drainage gas collection system in the landfill area of this embodiment includes a main drainage pipe 3, branch drainage pipes 4, a percolate collecting tank 5, a suction pump 6 and an isolation support layer 2.
In the present embodiment, the isolation support layer 2 is a rammed earth layer, which is provided within the landfill area 1 to divide the landfill area 1 into different landfill layers 12. Specifically, during the garbage landfill operation, after garbage is buried at a certain depth, earth covering and tamping are carried out to form a tamped soil layer, then the garbage landfill is continuously carried out, so that the tamped soil layer divides the garbage landfill layers 12, and the tamped soil layer has certain supporting strength due to relatively large density and can play a certain role in stably supporting the garbage dump body of the garbage landfill area 1; carry out the layering through it with the landfill rubbish, can prevent percolate at a certain extent and ooze down at the excessive speed, avoid rubbish heap body landslide, combine the setting of drainage guide pipe simultaneously, do benefit to the realization and collect the abundant drainage guide of percolate and landfill gas in each landfill layer 12, improve drainage guide and collection efficiency. The separation support layer 2 may be specifically one layer, two layers, three layers, five layers, and the like, and is not limited thereto.
The main guide-drainage pipe 3 is arranged along the slope of the refuse landfill area 1, the lower end of the main guide-drainage pipe 3 is led into the percolate collecting tank 5, and the upper end of the main guide-drainage pipe is connected with the air pump 6. The header pipe 3 can be made of HDPE pipe. In this embodiment, the lower end of the main drainage pipe 3 has a U-shaped pipe section 31, and the U-shaped pipe section 31 is located before the lower end of the main drainage pipe 3 is introduced into the percolate collecting tank 5. In other embodiments, it may also be designed that a U-shaped pipe is arranged at the lower end of the main drainage pipe 3, and the main drainage pipe 3 is led into the percolate collecting tank 5 through the U-shaped pipe. In addition, a valve can be arranged on the pipe body before entering the percolate collecting tank 5 so as to control the opening and closing of the pipe body.
The guide and drainage branch pipes 4 are respectively arranged at the bottom of the refuse landfill area 1 and on each isolation supporting layer 2, one end of each guide and drainage branch pipe 4 is inserted into the refuse landfill layer 12, the other end of each guide and drainage branch pipe is communicated with the guide and drainage header pipe 3, and the guide and drainage branch pipes 4 can be communicated with the guide and drainage header pipe 3 through three-way pipes. In this embodiment, the drainage guide branch pipes 4 are horizontally inserted into the landfill layers 12, the drainage guide branch pipes 4 are specifically perforated pipes with a plurality of holes 41 on the pipe wall of one side inserted into the landfill layers 12, and the holes 41 are arranged to facilitate the extraction and collection of leachate and landfill gas. In order to prevent impurities from entering the pipe to cause pipe body blockage, a filter screen can be wrapped on the outer wall of one section of the guide and discharge branch pipe 4 provided with the holes 41, and the filter screen can be a three-dimensional vegetation net. In other embodiments, instead of forming the holes 41 on the drainage guide branch pipes 4, the leachate and landfill gas may be directly extracted through the pipe orifices of the drainage guide branch pipes 4; similarly, a filter screen may be disposed at the nozzle of the guide branch pipe 4 to prevent impurities from entering the pipe body. The drainage guide branch pipe 4 can also be obliquely inserted into the landfill layer 12. The drainage guide branch pipe 4 can be made of HDPE pipe.
In addition, in order to further facilitate the guiding and draining of the leachate, a guiding and draining blind ditch 7 can be further arranged at the bottom of the landfill region 1, and the guiding and draining blind ditch 7 is communicated with a guiding and draining branch pipe 4 at the bottom of the landfill region 1 so as to lead the leachate to the guiding and draining branch pipe 4 through the guiding and draining blind ditch 7, and then the leachate is pumped out of a landfill body, thereby realizing smooth guiding and draining.
When the slope drainage gas collection system of the refuse landfill region works, the air is pumped by the air pump 6, the landfill gas and the percolate in the refuse dump of the refuse landfill region 1 are pumped out along the guide and discharge branch pipe 4 and then enter the guide and discharge main pipe 3, and then the landfill gas goes upwards along the guide and discharge main pipe 3 under the action of air pumping pressure so as to collect the landfill gas; the percolate entering the guide and discharge main pipe 3 descends to a percolate collecting tank 5 along the guide and discharge main pipe 3 under the action of the gravity of the percolate; the air pump 6 works continuously, and the landfill gas and the percolate are pumped out continuously so as to fully realize the drainage of the percolate in the refuse landfill area and the collection of the landfill gas.
From top to bottom, the utility model discloses landfill district side slope drainage receives gas system, easily realizes, and is with low costs, and filtration liquid drainage guide and landfill gas collection efficiency are high, can eliminate the easy heap landslide problem that causes of filtration liquid that produces in landfill district.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A side slope drainage gas recovery system of a refuse landfill area is characterized by comprising a guide and drainage main pipe, guide and drainage branch pipes, a percolate collecting pool, an air pump and at least one isolation supporting layer; the isolation supporting layer is arranged in the refuse landfill region and divides the refuse landfill region into different refuse landfill layers; the guide and exhaust main pipe is arranged along the slope of the refuse landfill area, the lower end of the guide and exhaust main pipe is introduced into the percolate collecting tank, and the upper end of the guide and exhaust main pipe is connected with the air pump; the guide and discharge branch pipes are respectively arranged at the bottom of the refuse landfill area and on each isolation supporting layer, one end of each guide and discharge branch pipe is inserted into the refuse landfill layer, and the other end of each guide and discharge branch pipe is communicated with the guide and discharge header pipe.
2. The landfill area side slope drainage gas recovery system of claim 1, further comprising a drainage blind ditch, wherein the drainage blind ditch is arranged at the bottom of the landfill area and communicated with a drainage branch pipe at the bottom of the landfill area.
3. The side slope water drainage and gas collection system for the refuse landfill according to claim 1 or 2, wherein the pipe wall of one side of the drainage guide branch pipe inserted into the refuse landfill is provided with a plurality of holes.
4. The side slope drainage and gas collection system for the refuse landfill area according to claim 3, wherein a section of the drainage branch pipe provided with the holes is wrapped with a filter screen.
5. The side slope water drainage and gas collection system for the refuse landfill area according to claim 1 or 2, wherein a filter screen is arranged at a pipe orifice at one side of the drainage guide branch pipe, which is inserted into the refuse landfill layer.
6. The landfill area side slope water and gas drainage system of claim 1 or 2, wherein the drainage guide branch pipe is communicated with the drainage guide main pipe through a three-way pipe.
7. The landfill slope drainage and gas recovery system of claim 1 or 2, wherein the drainage guide branch pipe is horizontally inserted into the landfill layer.
8. The landfill site side slope drainage and gas collection system of claim 1 or 2, wherein the lower end of the drainage main pipe is provided with a U-shaped pipe section; or the lower end of the guide and discharge header pipe is provided with a U-shaped pipe, and the U-shaped pipe is introduced into the percolate collecting tank.
9. The landfill site slope drainage gas recovery system of claim 1 or 2, wherein the isolation supporting layer is a rammed soil layer.
10. The landfill slope drainage and gas recovery system of claim 1 or 2, wherein the main drainage pipe and the branch drainage pipes are made of HDPE (high-density polyethylene) pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920426681.6U CN209873824U (en) | 2019-03-29 | 2019-03-29 | Landfill district slope drainage gas recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920426681.6U CN209873824U (en) | 2019-03-29 | 2019-03-29 | Landfill district slope drainage gas recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN209873824U true CN209873824U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920426681.6U Active CN209873824U (en) | 2019-03-29 | 2019-03-29 | Landfill district slope drainage gas recovery system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672864A (en) * | 2020-07-01 | 2020-09-18 | 武汉环投城市废弃物运营管理有限公司 | Drainage and air guide pipeline for landfill |
| CN111822478A (en) * | 2020-07-08 | 2020-10-27 | 中国海洋大学 | Landfill gas horizontal horizontal well gas gathering and inverted leachate system and method |
| CN111940450A (en) * | 2020-08-26 | 2020-11-17 | 胡伟儒 | Landfill leachate and landfill gas collecting system and method |
| CN112871946A (en) * | 2021-03-01 | 2021-06-01 | 朱仁俊 | Gas discharge structure of sealed well type refuse landfill |
| CN114226389A (en) * | 2021-12-14 | 2022-03-25 | 广东省建筑工程集团有限公司 | Gas-liquid synchronous collection method and system for refuse landfill |
| CN115387443A (en) * | 2021-12-30 | 2022-11-25 | 武汉市政环境工程建设有限公司 | A leaky anti-seepage guide structure and construction method for landfill |
-
2019
- 2019-03-29 CN CN201920426681.6U patent/CN209873824U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672864A (en) * | 2020-07-01 | 2020-09-18 | 武汉环投城市废弃物运营管理有限公司 | Drainage and air guide pipeline for landfill |
| CN111822478A (en) * | 2020-07-08 | 2020-10-27 | 中国海洋大学 | Landfill gas horizontal horizontal well gas gathering and inverted leachate system and method |
| CN111822478B (en) * | 2020-07-08 | 2022-05-31 | 中国海洋大学 | Landfill gas horizontal horizontal well gas gathering and inverted leachate system and method |
| CN111940450A (en) * | 2020-08-26 | 2020-11-17 | 胡伟儒 | Landfill leachate and landfill gas collecting system and method |
| CN112871946A (en) * | 2021-03-01 | 2021-06-01 | 朱仁俊 | Gas discharge structure of sealed well type refuse landfill |
| CN112871946B (en) * | 2021-03-01 | 2022-08-16 | 南京禹智智能科技有限公司 | Gas discharge structure of sealed well type refuse landfill |
| CN114226389A (en) * | 2021-12-14 | 2022-03-25 | 广东省建筑工程集团有限公司 | Gas-liquid synchronous collection method and system for refuse landfill |
| CN115387443A (en) * | 2021-12-30 | 2022-11-25 | 武汉市政环境工程建设有限公司 | A leaky anti-seepage guide structure and construction method for landfill |
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