CN211563998U - Landfill gas guide and discharge and recycling system of refuse landfill - Google Patents
Landfill gas guide and discharge and recycling system of refuse landfill Download PDFInfo
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- CN211563998U CN211563998U CN201922229191.XU CN201922229191U CN211563998U CN 211563998 U CN211563998 U CN 211563998U CN 201922229191 U CN201922229191 U CN 201922229191U CN 211563998 U CN211563998 U CN 211563998U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
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Abstract
The utility model discloses a landfill gas drainage guide and resource system, including at least one rubbish heap body, the top surface of rubbish heap body covers there is the prevention of seepage membrane, the inside of rubbish heap body is equipped with quantity and is vertical gas collecting well and horizontal gas collecting device more than one respectively, vertical gas collecting well upwards stretches out prevention of seepage membrane and the part of stretching out connect first condenser, first condenser is connected with first fan and liquid storage pot respectively, horizontal gas collecting device is connected with the second condenser, the second condenser respectively with the second fan with the liquid storage pot is connected, first fan with the second fan is connected with the gas collecting station respectively, the gas collecting station with landfill gas purification device is connected. The utility model discloses an efficient, can be to the landfill gas purification treatment of collection, the methane gas that obtains after the processing still can further resource utilization.
Description
Technical Field
The utility model relates to a refuse treatment's technical field, concretely relates to landfill gas drainage and resource system.
Background
The refuse landfill is a refuse centralized stacking site adopting a sanitary landfill mode. The landfill gas is generated by the microbial decomposition of organic substances in the garbage dump of the household garbage landfill, and the main component of the landfill gas is CH4And CO2. Each ton of garbage can generate about 100-200 m in the life of the landfill3The calorific value of the methane gas is generally 7450-22350 kJ/m3Has high fuel recovery value and is a potential clean energy. At present, most landfill gas of the refuse landfill is burned by a torch, so that resource waste is caused.
At present, a domestic landfill site generally uses a plurality of vertical gas collecting wells or transverse gas collecting wells to conduct and discharge landfill gas. The vertical gas collecting well generally has the problems of low landfill gas guiding and discharging efficiency and untimely collection and treatment. The horizontal gas collecting well has higher drainage efficiency, but has the problem of difficult condensate drainage because of horizontal installation. Moreover, the guide and exhaust pipes are all straight pipes, and partial areas are difficult to cover when gas is collected. Therefore, a landfill gas guiding and discharging device which can be more efficient is needed, and simultaneously, the collected landfill gas can be purified and treated, and the methane gas obtained after treatment can be recycled, such as natural gas or power generation.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of background art, the utility model provides a landfill gas drainage guide and resource system, its is efficient, can be to the landfill gas purification treatment of collection, and the methane gas that obtains after the processing still can further resource utilization.
For solving the technical problem, the utility model provides a following technical scheme:
landfill gas drainage and resource system, including at least one rubbish heap body, the top surface of rubbish heap body covers there is prevention of seepage membrane, the inside of rubbish heap body is equipped with more than one vertical gas collection well and horizontal gas collection device respectively in quantity, vertical gas collection well upwards stretches out prevention of seepage membrane and the first condenser of part connection that stretches out, first condenser is connected with first fan and liquid storage pot respectively, horizontal gas collection device is connected with the second condenser, the second condenser respectively with the second fan with the liquid storage pot is connected, first fan with the second fan is connected with the gas gathering station respectively, the gas gathering station with landfill gas purification device is connected.
The vertical gas collecting well is provided with a first gas collecting interface at the part extending out of the anti-seepage film, the first gas collecting interface is connected with the anti-seepage film, a first rubber sealing strip is arranged at the joint of the first gas collecting interface and the anti-seepage film, and a first control valve is connected to the first gas collecting interface.
Vertical gas collection well with the contact surface of rubbish heap body is equipped with first air guide gabion, first HDPE pipe is installed in the axle center of first air guide gabion, be the packing interval between first air guide gabion and the first HDPE pipe, the compaction clay is filled on the upper portion in packing interval, and the lower part is filled the rubble filter material, vertical gas collection well with the bottom distance of rubbish heap body is between 1m to 2 m.
And the front part, the rear part, the left part and the right part of the lower part of the vertical gas collecting well are respectively connected with a second gas guide gabion, and the structure of the second gas guide gabion is the same as that of the first gas guide gabion.
The first HDPE pipe is characterized in that first holes with the diameter of 8-12 mm are uniformly distributed on the pipe wall of the lower portion of the first HDPE pipe, and the center distance between every two first holes is 80-120 mm.
Horizontal gas collection device's appearance is the hexagon of constituteing by the second HDPE pipe, horizontal gas collection device's inside is equipped with three and divide into six interval second HDPE pipes with it, horizontal gas collection device's center is the crossing department of three second HDPE pipes promptly and is equipped with the gaseous interface of collecting of second, the gaseous interface of collecting of second with prevent that the osmosis membrane links to each other, and is equipped with second rubber sealing strip with the seam crossing of prevention osmosis membrane, be connected with the second control valve on the gaseous interface of collecting of second, adopt flexible joint to connect between the second HDPE pipeline.
The diameter of the second HDPE pipe is 160-200 mm, second holes with the diameter of 8-12 mm are uniformly distributed in the pipe wall of the second HDPE pipe, and the center distance between every two second holes is 80-120 mm.
The landfill gas purifying device comprises a desulfurization purifying system, a dust removal filter, a gas-liquid separator and a compression device which are connected in sequence, and the landfill gas is processed by the landfill gas purifying device to obtain methane gas.
Compared with the prior art, the utility model beneficial effect who has is: first, the utility model discloses combine together horizontal gas collection device and vertical gas collection well technology in order to collect the landfill gas, can collect the landfill gas that the landfill produced furthest, improve the collection efficiency of landfill gas, avoid the landfill gas to reveal environmental hidden danger and the potential safety hazard that causes. Secondly, the utility model discloses the landfill gas that will collect is handled through landfill gas purification device, obtains methane gas, has realized the technological effect of the utilization of landfill gas resource, for example uses or is used for the electricity generation as natural gas.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of the horizontal gas collecting device of the present invention;
FIG. 3 is a schematic view of a vertical gas collection well of the present invention;
fig. 4 is a schematic diagram of the landfill gas purification device of the present invention.
Detailed Description
As shown in the figures, the landfill gas guiding and recycling system of the landfill site in the embodiment includes a landfill body 1, an impermeable membrane 4 covers the top surface of the landfill body 1, a vertical gas collecting well 2 and a horizontal gas collecting device 3 are arranged inside the landfill body 1, the part of the vertical gas collecting well 2 extending upwards out of the impermeable membrane 4 is connected with a first condenser 5, the first condenser 5 is respectively connected with a first fan 6 and a liquid storage tank 7, the horizontal gas collecting device 3 is connected with a second condenser 8, the second condenser 8 is respectively connected with a second fan 9 and the liquid storage tank 7, the first fan 6 and the second fan 9 are respectively connected with a gas collecting station 10, and the gas collecting station 10 is connected with a landfill gas purifying device 11.
In this embodiment, the part of the vertical gas collecting well 2 extending out of the impermeable membrane 4 is provided with a first gas collecting interface, the first gas collecting interface is connected with the impermeable membrane 4, and a first rubber sealing tape 12 is arranged at the joint of the first gas collecting interface and the impermeable membrane 4, so that the sealing performance can be improved, the gas is prevented from seeping out, and in order to better control the output and output of the gas, a first control valve 13 is connected to the first gas collecting interface.
In this embodiment, the contact surface of vertical gas collection well 2 and rubbish heap 1 is equipped with first air guide gabion 15, and first HDPE pipe 16 is installed to the axle center of air guide gabion, is the filling interval between first air guide gabion and the first HDPE pipe 16, and the upper portion in filling interval fills compaction clay 17, and the lower part is filled rubble filter material 18, and the bottom distance of vertical gas collection well 2 and rubbish heap 1 is between 1m to 2 m.
In the embodiment, the front, the back, the left and the right of the lower part of the vertical gas collecting well 2 are respectively connected with a second gas directing gabion 19, and the structure of the second gas directing gabion 19 is the same as that of the first gas directing gabion 15. This configuration allows better capture of landfill gas generated by the landfill for disposal.
In this embodiment, because the filling section is between the first air guide stone cage and the first HDPE pipe 16, the compacted clay 17 is filled in the upper part of the filling section, and the crushed stone filter material 18 is filled in the lower part of the filling section, so that only the lower part of the first HDPE pipe 16 needs to be provided with a filter through hole, therefore, the first HDPE pipe 16 only has the first holes 161 with the diameter of 8-12 mm uniformly distributed on the pipe wall of the lower part thereof, and the center distance between each first hole 161 is 80-120 mm.
In this embodiment, horizontal gas collection device 3's appearance is the hexagon of constituteing by second HDPE pipe 20, horizontal gas collection device 3's inside is equipped with three and divides into six interval second HDPE pipes 20 with it, horizontal gas collection device 3's center is the crossing department of three second HDPE pipes 20 promptly and is equipped with the second gas collection interface, the second gas collection interface links to each other with prevention of seepage membrane 4, and be equipped with second rubber sealing strip with the seam crossing of prevention of seepage membrane 4, be connected with second control valve 21 on the second gas collection interface, adopt flexible joint to connect between the second HDPE pipe 20 way.
In the embodiment, the diameter of the second HDPE pipe 20 is 160 to 200mm, second holes 201 with a diameter of 8 to 12mm are uniformly distributed on the pipe wall of the second HDPE pipe 20, and the center distance between every two second holes 201 is 80 to 120 mm.
In this embodiment, the landfill gas purifying device 11 includes a desulfurization purification system 21, a dust removal filter 22, a gas-liquid separator 23, and a compression device 24, which are connected in sequence, and the landfill gas is processed by the landfill gas purifying device 11 to obtain methane gas.
In the present embodiment, the first control valve 13 and the second control valve 21 are each provided as a pneumatic control valve.
Of course, in addition to the present embodiment, the number of the garbage heap 1 may be set to be one or more, and the vertical gas collecting wells 2 and the horizontal gas collecting devices 3 may be respectively set to be one or more and connected in series with each other.
In conclusion, the horizontal gas collecting device 3 and the vertical gas collecting well 2 are combined to collect the landfill gas, so that the landfill gas generated by a landfill site can be collected to the maximum extent, the landfill gas collecting efficiency is improved, and the environmental hidden danger and the potential safety hazard caused by the leakage of the landfill gas are avoided. The embodiment can also treat the collected landfill gas by the landfill gas purifying device 11 to obtain methane gas, thereby realizing the technical effect of resource utilization of the landfill gas, such as being used as natural gas or used for power generation.
Claims (8)
1. The landfill gas guiding and recycling system for the refuse landfill is characterized by comprising at least one refuse pile body, wherein the top surface of the refuse pile body is covered with an impermeable membrane, more than one vertical gas collecting well and horizontal gas collecting devices are arranged in the refuse pile body respectively, the part, extending out of the impermeable membrane, of the vertical gas collecting well is connected with a first condenser, the first condenser is respectively connected with a first fan and a liquid storage tank, the horizontal gas collecting devices are connected with a second condenser, the second condenser is respectively connected with a second fan and the liquid storage tank, the first fan and the second fan are respectively connected with a gas collecting station, and the gas collecting station is connected with a landfill gas purifying device.
2. The landfill gas guiding and discharging and recycling system of the refuse landfill as claimed in claim 1, wherein: the vertical gas collecting well is provided with a first gas collecting interface at the part extending out of the anti-seepage film, the first gas collecting interface is connected with the anti-seepage film, a first rubber sealing strip is arranged at the joint of the first gas collecting interface and the anti-seepage film, and a first control valve is connected to the first gas collecting interface.
3. The landfill gas guiding and discharging and recycling system of the refuse landfill as claimed in claim 1, wherein: vertical gas collection well with the contact surface of rubbish heap body is equipped with first air guide gabion, first HDPE pipe is installed in the axle center of first air guide gabion, be the packing interval between first air guide gabion and the first HDPE pipe, the compaction clay is filled on the upper portion in packing interval, and the lower part is filled the rubble filter material, vertical gas collection well with the bottom distance of rubbish heap body is between 1m to 2 m.
4. The landfill gas drainage and recycling system of claim 3, wherein: and the front part, the rear part, the left part and the right part of the lower part of the vertical gas collecting well are respectively connected with a second gas guide gabion, and the structure of the second gas guide gabion is the same as that of the first gas guide gabion.
5. The landfill gas drainage and recycling system of claim 3, wherein: the first HDPE pipe is characterized in that first holes with the diameter of 8-12 mm are uniformly distributed on the pipe wall of the lower portion of the first HDPE pipe, and the center distance between every two first holes is 80-120 mm.
6. The landfill gas guiding and discharging and recycling system of the refuse landfill as claimed in claim 1, wherein: horizontal gas collection device's appearance is the hexagon of constituteing by the second HDPE pipe, horizontal gas collection device's inside is equipped with three and divide into six interval second HDPE pipes with it, horizontal gas collection device's center is the crossing department of three second HDPE pipes promptly and is equipped with the gaseous interface of collecting of second, the gaseous interface of collecting of second with prevent that the osmosis membrane links to each other, and is equipped with second rubber sealing strip with the seam crossing of prevention osmosis membrane, be connected with the second control valve on the gaseous interface of collecting of second, adopt flexible joint to connect between the second HDPE pipeline.
7. The landfill gas drainage and recycling system of claim 6, wherein: the diameter of the second HDPE pipe is 160-200 mm, second holes with the diameter of 8-12 mm are uniformly distributed in the pipe wall of the second HDPE pipe, and the center distance between every two second holes is 80-120 mm.
8. The landfill gas guiding and discharging and recycling system of the refuse landfill as claimed in claim 1, wherein: the landfill gas purifying device comprises a desulfurization purifying system, a dust removal filter, a gas-liquid separator and a compression device which are connected in sequence, and the landfill gas is processed by the landfill gas purifying device to obtain methane gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229191.XU CN211563998U (en) | 2019-12-12 | 2019-12-12 | Landfill gas guide and discharge and recycling system of refuse landfill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922229191.XU CN211563998U (en) | 2019-12-12 | 2019-12-12 | Landfill gas guide and discharge and recycling system of refuse landfill |
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| CN211563998U true CN211563998U (en) | 2020-09-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578930A (en) * | 2021-08-05 | 2021-11-02 | 山东中海新科环境技术有限公司 | High-efficient guide bar structure of landfill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578930A (en) * | 2021-08-05 | 2021-11-02 | 山东中海新科环境技术有限公司 | High-efficient guide bar structure of landfill |
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