CN217665328U - Ecological restoration device for refuse landfill - Google Patents
Ecological restoration device for refuse landfill Download PDFInfo
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- CN217665328U CN217665328U CN202220466158.8U CN202220466158U CN217665328U CN 217665328 U CN217665328 U CN 217665328U CN 202220466158 U CN202220466158 U CN 202220466158U CN 217665328 U CN217665328 U CN 217665328U
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Abstract
The utility model provides an ecological remediation device for refuse landfill, include: the device comprises a closed accommodating chamber, a partition wall, an odor collecting branch pipe, an odor collecting main pipe, an aerator pipe, an alkaline washing tower and an acid washing tower, wherein the partition wall, the aerator pipe and the odor collecting branch pipe are all positioned in the closed accommodating chamber, at least one partition wall is arranged at the bottom of the closed accommodating chamber vertically, so that the closed accommodating chamber is divided into at least two subareas, garbage is piled in each subarea, the aerator pipe is arranged at the lower part of the garbage, one end of the odor collecting branch pipe is communicated with the aerator pipe, and the other end of the odor collecting branch pipe is communicated with the odor collecting main pipe extending into the closed accommodating chamber; the advantages are that: the process is piled to rubbish the utility model discloses the concentration of the internal methane of rubbish heap can be effectively reduced to the operation back of device, reduces the foul smell production by a wide margin, reduces rubbish moisture content, guarantees the safe and stable operation of screening system behind the excavation.
Description
Technical Field
The utility model belongs to the technical field of the landfill technique and specifically relates to an ecological remediation device for refuse landfill.
Background
Since the last 90 s, the urbanization level of China has been greatly developed, and domestic garbage is gradually turned into centralized garbage landfill from dumping to low-lying areas such as rivers, lakes and seas. The subsequent municipal refuse collection and transportation level is continuously improved, and the refuse sanitary landfill is widely applied in China because of low cost, simple process and good sanitary degree. However, with the development of technology, garbage incineration, domestic garbage classification and recycling and the like gradually replace garbage landfill, and the treatment of domestic garbage gradually turns to reduction and harmlessness. However, after tens of thousands of landfills in the country are used, a large amount of garbage is left to occupy the land, and the development of cities is restricted.
In order to further release the land value, many cities need to excavate, sieve and utilize the landfill, so that the land value is released to the maximum extent. However, as the landfill is very complex and has high water content, the accidents of explosion, odor disturbing residents and blocking of screening machinery are very easy to happen in the excavation and screening process, and the whole repair project is difficult to continue. How to ensure not to take place methane explosion accident in the screening excavation process, effective control is to peripheral foul smell pollution, and the guarantee rubbish moisture content reaches the requirement of screening machinery, is the technological problem that awaits solution at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ecological remediation device for refuse landfill, the purpose is overcome above-mentioned a technical defect at least.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
an ecological restoration device for a landfill site, comprising: the device comprises a closed accommodating chamber, a partition wall, an odor collecting branch pipe, an odor collecting main pipe, an aerator pipe, an alkaline washing tower and an acid washing tower, wherein the partition wall, the aerator pipe and the odor collecting branch pipe are located in the closed accommodating chamber, at least one partition wall is arranged at the bottom of the closed accommodating chamber and is perpendicular to the bottom of the closed accommodating chamber, so that the closed accommodating chamber is divided into at least two partitions, garbage is piled in each partition, the aerator pipe is arranged at the lower part of the garbage, one end of the odor collecting branch pipe is communicated with the aerator pipe, the other end of the odor collecting branch pipe is communicated with the odor collecting main pipe extending into the closed accommodating chamber, and odor is sequentially transported to the acid washing tower and the alkaline washing tower outside the closed accommodating chamber and then discharged;
wherein, the aeration pipe is located in the aeration ditch of closed holding room lower part, just closed holding room below has seted up the blind ditch that catchments along its circumference, and this blind ditch that catchments communicates with the catch basin outside the rubbish heap.
Preferably, the container also comprises an impermeable membrane positioned outside the bottom of the closed accommodating chamber and a protective layer positioned below the impermeable membrane.
Preferably, the protective layer is made of geotextile.
Preferably, the bottom end surface of the closed accommodating chamber is formed by a reinforced concrete poured bottom plate, and the gradient between the bottom end surface and the horizontal plane is greater than or equal to 1%.
Preferably, each area of the closed receiving chamber divided by the partition wall has a width of 10m, and the height of the partition wall is 1-2m.
Preferably, a gas collecting blind ditch is arranged in the middle of each area of the closed accommodating chamber divided by the partition wall and used for placing the aeration pipe.
Preferably, the top of the closed accommodating chamber is provided with a drying component corresponding to the garbage pile inside the closed accommodating chamber.
Preferably, the garbage treatment device further comprises a belt conveyor for conveying the garbage treated in the closed containing chamber to a transfer vehicle outside the closed containing chamber for screening.
The utility model discloses an ecological remediation device for refuse landfill, its advantage is: the rubbish is piled the process the utility model discloses the concentration of internal methane of rubbish heap can be effectively reduced to the operation back of device, reduces the foul smell production volume by a wide margin, reduces rubbish moisture content, guarantees to excavate the safety and stability operation of back screening system.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic longitudinal sectional view of an ecological restoration device for a refuse landfill according to the present invention;
fig. 2 is a schematic view of a cross slope structure of the ecological restoration device for a refuse landfill of the present invention;
wherein:
the device comprises a closed accommodating chamber 1, a gas collection blind ditch 11, a water collection blind ditch 12, an impermeable membrane 13, a protective layer 14, a bottom plate 15, a airing component 16, a belt conveyor 17 and a chimney 18;
a partition wall 2, an odor collecting branch pipe 3, an odor collecting main pipe 4, an aeration pipe 5, a fan 51, an alkaline washing tower 6, an acid washing tower 7, a water collecting tank 8 and a garbage pile 9.
Detailed Description
The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.
According to fig. 1, fig. 2 show, the utility model relates to an ecological remediation device for refuse landfill, include: the device comprises a closed accommodating chamber 1, a partition wall 2, an odor collecting branch pipe 3, an odor collecting main pipe 4, an aerator pipe 5, an alkaline washing tower 6 and an acid washing tower 7, wherein the partition wall 2, the aerator pipe 5 and the odor collecting branch pipe 3 are all positioned in the closed accommodating chamber 1, at least one partition wall 2 is vertically arranged at the bottom of the closed accommodating chamber 1 so as to divide the closed accommodating chamber 1 into at least two subareas, garbage is piled in each subarea, and the aerator pipe 5 is arranged at the lower part of the garbage, so that one end of the odor collecting branch pipe 3 is communicated with the aerator pipe 5, the other end of the odor collecting branch pipe is communicated with the odor collecting main pipe 4 extending into the closed accommodating chamber 1, and odor is sequentially transported to the acid washing tower 7 and the alkaline washing tower 6 outside the closed accommodating chamber 1 and then discharged; in this embodiment, the gas may be exhausted through the chimney 18.
Wherein the aerator pipe 5 is positioned in a gas collection blind ditch 11 at the lower part of the closed accommodating chamber 1, a water collection blind ditch 12 is arranged below the closed accommodating chamber 1 along the circumferential direction of the closed accommodating chamber, and the water collection blind ditch 12 is communicated with a water collection tank 8 outside the garbage pile 9;
in this embodiment, the aeration pipe 5 is connected with a fan 51, and the fan 51 provides power; the closed accommodating chamber 1 is formed by a light steel structure factory building, the height of the closed accommodating chamber is 6-10m, and odor is prevented from overflowing.
In the specific implementation process, the height of the partition wall 2 is 1-2 meters, the height is selected according to the needs, the diameter of the aeration pipe 5 is 300-500mm, and the aeration time and the ventilation time are 1-2d through the fan 51; each region of the closed accommodating chamber 1 divided by the partition wall 2 has a width of 10m, so that subsequent operations such as ventilation, airing and dehydration can be effectively performed in the garbage heap 9. In order to improve the service life of the closed accommodating chamber 1 while improving the exhaust effect, a gas collecting blind ditch 11 is formed in the middle of each region of the closed accommodating chamber 1 divided by the partition wall 2 and used for placing the aeration pipe 5. Further, the size of the gas collection blind ditch 11 is 1000 × 1000mm.
In order to protect the field, the structure of the utility model also comprises an anti-seepage film 13 positioned outside the bottom of the closed containing chamber 1 and a protective layer 14 positioned at the lower part of the anti-seepage film 13; the impermeable membrane 13 is made of HDPE membrane, the thickness of the membrane is 1.0-2.0mm, and 600g/m is arranged on the membrane 2 The cover 14 of (a), the cover 14 being constructed of geotextile.
In order to facilitate the concentration of water flow, the bottom end face of the closed accommodating chamber 1 is formed by a bottom plate 15 poured by reinforced concrete, and the gradient between the bottom end face and the horizontal plane is more than or equal to 1%, so that filtered water in the garbage pile 9 enters the water collecting blind ditch 12 and then flows into the water collecting tank 8, and the dehydration work in the garbage pile 9 is completed. Further, the water collecting blind ditch 12 is a 1 x 1m cover-free concrete drainage ditch, and gravels are filled in the drainage ditch; and a sewage pump drainage pump is arranged in the water collecting tank 8, and collected sewage is pumped to a subsequent sewage treatment system through the sewage pump drainage pump.
In order to facilitate the airing of the garbage pile 9, the top of the closed accommodating chamber 1 is provided with an airing component 16 corresponding to the garbage pile 9 inside the closed accommodating chamber; furthermore, the airing component 16 is composed of color steel tiles arranged on the top of the closed accommodating chamber 1, so that the garbage stack 9 can be conveniently aired by sunlight, and the color steel tiles account for more than 50% of the total area of the roof.
The utility model discloses still include belt feeder 17 for will pass through rubbish after the processing in the closed chamber 1 is carried and is sieved on its outside transfer vehicle.
The utility model discloses compare with schemes such as other gas film storehouse, sunning ground, solved the leachate downward diffusion and polluted soil, pile body methane easy explosion, the excessive disturbing citizen of foul smell and rubbish moisture content can't the problem of grading to technical parameter such as ventilation, deodorization time have been proposed. The water content of the garbage is quickly reduced by utilizing the lower draining and sun drying, and the energy-saving effect is obvious compared with the energy-saving effect of technologies such as heat drying. The explosion accident can be completely avoided theoretically, odor is greatly reduced, the water content of the garbage is rapidly reduced, the occupied area of a middle storage yard can be greatly reduced, and the method has a strong practical guiding effect.
Example one
The total landfill amount of a certain landfill site is 50 ten thousand square, and the weight of the excavation sieve per day is 2000m 3 D is calculated as the ratio of the total weight of the composition. The amount to be treated in 3 days is 6000m 3 D, according to the average height of 1.5m, the place needing airing is 3000m 2 Consider the provision of 5 aeration lines (i.e. a zone divided into five stacks 9 of waste in the closed housing 1And each zone is internally provided with an aeration pipe 5), the width is 10m, the length is 60m, the width of the upper light steel workshop is 60m, and the length is 80m. The lower part HDPE film (namely the impermeable film 13) is 1.5mm thick, the diameter of the aeration pipe 5 is 500mm, the diameter of the odor collecting branch pipe 3 is 500mm, the diameter of the odor collecting main pipe 4 is 1000mm, and the volume of the water collecting well is 30m 3 The top drying lighting area is 2000m 2 The retention time of the odor during deodorization was 15 seconds. After the garbage is excavated from a landfill, the garbage is sequentially placed into 1-5 aeration lines, wherein the aeration time is 2d, the static drainage and airing time is 3d, and after the time is finished, the garbage is transported to a belt conveyor 17 by a loading machine and enters the next screening link. And circulating the process until the screening operation is completed.
Example 2:
the total landfill amount of a certain landfill site is 10 ten thousand square, and the daily excavation sieve amount is 1000m 3 D is calculated as the ratio of the total weight of the composition. The amount to be treated in 3 days is 3000m 3 D, according to the average height of 1.5m, the field needing airing is 2000m 2 Considering that 4 aeration lines (i.e. 4 areas for stacking the garbage pile 9 are divided in the closed accommodating chamber 1, and an aeration pipe 5 is arranged in each area), the width is 10m, the length is 50m, the width of the upper light steel workshop is 50m, and the length is 70m. The lower HDPE film (namely the impermeable film 13) is 1.0mm thick, the diameter of the aeration pipe 5 pipelines is 400mm, the diameter of the deodorization branch pipeline is 400mm, the diameter of the main pipeline is 800mm, and the volume of the water collecting well is 15m 3 The top drying lighting area is 1500m 2 The odor retention time of the deodorizing system was 10 seconds. After the garbage is excavated from a landfill site, the garbage is sequentially placed into 1-4 aeration lines, wherein the aeration time is 1.5d, the static drainage and airing time is 3d, and after the time is finished, the garbage is conveyed to a belt by a loader and enters a next screening link. And circulating the process until the screening operation is completed.
Example 3:
the total landfill amount of a certain landfill site is 200 ten thousand square, and the daily excavation sieve amount is 5000m 3 D is calculated as the ratio of the total weight of the composition. The amount to be processed in 3 days is 15000m 3 D, according to the average height of 2.0m, the field needing to be aired is 7500m 2 Consider the arrangement of 10 aeration lines (i.e. 10 areas of piled-up mass of waste 9 divided in the closed housing 1, each timeAn aeration pipe 5) is arranged in each area, the width is 10m, the length is 75m, the width of the upper light steel workshop is 120m, and the length is 100m. The lower HDPE film (impermeable film 13) is 2.0mm thick, the diameter of 5 pipelines of the aeration pipe is 500mm, the diameter of a deodorization branch pipeline is 600mm, the diameter of a main pipeline is 1500mm, and the volume of the water collecting well is 150m 3 The top drying lighting area is 5000m 2 The odor retention time of the deodorizing system was 15 seconds. After the garbage is excavated from a landfill, the garbage is sequentially placed into 1-10 aeration lines, wherein the aeration time is 3d, the static drainage and airing time is 3d, and after the time is finished, the garbage is transported to a belt by a loader and enters a next screening link. And circulating the process until the screening operation is completed.
The structures and principles not explicitly described in the present invention are available to those skilled in the art through conventional technical means, and therefore are not described in detail.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides an ecological remediation device for landfill, its characterized in that: the odor collection device comprises a closed containing chamber (1), a partition wall (2), an odor collection branch pipe (3), an odor collection main pipe (4), an aeration pipe (5), an alkaline washing tower (6) and an acid washing tower (7), wherein the partition wall (2), the aeration pipe (5) and the odor collection branch pipe (3) are all located in the closed containing chamber (1), at least one partition wall (2) is vertically arranged at the bottom of the closed containing chamber (1) to divide the closed containing chamber (1) into at least two partitions, garbage is piled in each partition, and the aeration pipe (5) is arranged at the lower part of the garbage, so that one end of the odor collection branch pipe (3) is communicated with the aeration pipe (5), the other end of the odor collection main pipe (4) extends into the closed containing chamber (1), and the odor is sequentially transported to the acid washing tower (7) outside the closed containing chamber (1) and the alkaline washing tower (6) and then discharged;
the aeration pipe (5) is positioned in a gas collection blind ditch (11) at the lower part of the closed accommodating chamber (1), a water collection blind ditch (12) is arranged below the closed accommodating chamber (1) along the circumferential direction of the closed accommodating chamber, and the water collection blind ditch (12) is communicated with a water collection tank (8) outside the garbage pile.
2. The ecological restoration device for the refuse landfill according to claim 1, characterized in that: the container also comprises an impermeable membrane (13) positioned outside the bottom of the closed containing chamber (1) and a protective layer (14) positioned below the impermeable membrane (13).
3. The ecological restoration device for the refuse landfill according to claim 2, characterized in that: the protective layer (14) is made of geotextile.
4. The ecological restoration device for the refuse landfill according to claim 1, characterized in that: the bottom end face of the closed accommodating chamber (1) is formed by a bottom plate (15) poured by reinforced concrete, and the gradient between the bottom end face and the horizontal plane is more than or equal to 1%.
5. The ecological restoration device for the refuse landfill according to claim 1, characterized in that: the width of each area partitioned by the partition wall (2) in the closed accommodating chamber (1) is 10m, and the height of the partition wall (2) is 1-2m.
6. The ecological restoration device for the refuse landfill according to claim 1, characterized in that: and a gas collection blind ditch is arranged in the middle of each area partitioned by the partition wall (2) in the closed accommodating chamber (1).
7. The ecological restoration device for the refuse landfill according to claim 1, characterized in that: the top of the closed containing chamber (1) is provided with a drying component (16) corresponding to the garbage pile in the closed containing chamber.
8. The ecological restoration device for the refuse landfill according to claim 1, characterized in that: the garbage treatment device also comprises a belt conveyor (17) which is used for conveying the garbage treated in the closed accommodating chamber (1) to a transfer vehicle outside the closed accommodating chamber for screening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220466158.8U CN217665328U (en) | 2022-03-04 | 2022-03-04 | Ecological restoration device for refuse landfill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220466158.8U CN217665328U (en) | 2022-03-04 | 2022-03-04 | Ecological restoration device for refuse landfill |
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| Publication Number | Publication Date |
|---|---|
| CN217665328U true CN217665328U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220466158.8U Active CN217665328U (en) | 2022-03-04 | 2022-03-04 | Ecological restoration device for refuse landfill |
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