CN109339026A - A kind of pumping dewatering device for landfill yard - Google Patents
A kind of pumping dewatering device for landfill yard Download PDFInfo
- Publication number
- CN109339026A CN109339026A CN201811391604.8A CN201811391604A CN109339026A CN 109339026 A CN109339026 A CN 109339026A CN 201811391604 A CN201811391604 A CN 201811391604A CN 109339026 A CN109339026 A CN 109339026A
- Authority
- CN
- China
- Prior art keywords
- section
- landfill
- well casing
- center
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 11
- 230000008961 swelling Effects 0.000 claims abstract description 7
- 239000004927 clay Substances 0.000 claims abstract description 6
- 239000004746 geotextile Substances 0.000 claims abstract description 5
- 239000004831 Hot glue Substances 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/106—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by forming sand drains containing only loose aggregates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention is a kind of pumping dewatering device for landfill yard, including deep-well, the center of the deep-well is equipped with center well casing, the lateral wall of the center well casing, the inner sidewall of bottom wall and deep-well, there are backfill gaps between bottom wall, the center well casing includes the real pipeline section of top and the perforation floral tube section of lower section, wherein real pipeline section upper end is pierced by deep-well and extends to ground or more, backfill gap on the outside of the reality pipeline section is from top to bottom followed successively by swelling earthen backfill section, clay backfilling section and the first graded broken stone backfill section, on the outside of the perforation floral tube section and backfill gap of lower section is that the second graded broken stone backfills section, the perforation floral tube section lateral wall is enclosed with geotextiles, the bottom end hot-melt adhesive paste of the center well casing has fixed bottom end cap, bottom is equipped with air driven pump in the center well casing, the upper end well head of the center well casing is packaged with blank flange.The invention avoids electrical equipment is used in landfill heap, prevents from exploding, ensure that the quality of landfill gas.
Description
Technical field
The present invention relates to garbage loading embeading technical field more particularly to a kind of pumping dewatering devices for landfill yard.
Background technique
Landfill yard needs air guide gabion is gradually continuous upwards with the increase of landfill height in landfill operation at present
It builds, but for various reasons, causes most of air guide gabion can not achieve straight-through up and down, for landfill height more than 10 meters
Landfill yard, the vertical guide that both will cause landfill gas are deteriorated, and also can bring difficulty to vertical guide percolate, this problem exists
It is especially prominent in old landfill yard, it is common practice to which that well-digging carries out guide again on old landfill yard.Current percolate
There are mainly two types of guide wells: (1) being extracted using explosion-proof electric submersible pump suitable to percolate；(2) forced air and percolate are used
Mixed mode is extracted, finally guide percolate in gaseous form.There is problem in both modes, fill and deposit in heap
In landfill gas, the main component of landfill gas is inflammable and explosive methane gas, and first way is filling in heap using electrically setting
It is standby, even explosion-proof electrical equipment, there is also the risk of explosion, excessive air can be made directly to discharge in well second,
The oxygen content of landfill gas in well is caused to increase, so that the local concentration of methane reduces, if into explosion limit, same meeting
It explodes, simultaneously because oxygen content increases, also can bring additional pretreatment difficulty to the utilization in landfill gas later period.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and a kind of pumping dewatering device for landfill yard is provided, it avoids
Electrical equipment is used in landfill heap, also avoids increasing the oxygen content in landfill gas.
The present invention to achieve the above object, using following technical scheme:
A kind of pumping dewatering device for landfill yard, including deep-well, the center of the deep-well is equipped with center well casing, described
The lateral wall of center well casing, the inner sidewall of bottom wall and deep-well, between bottom wall there are backfill gap, the center well casing includes upper
The real pipeline section of side and the perforation floral tube section of lower section, wherein real pipeline section upper end is pierced by deep-well and extends to ground or more, the real pipe
The backfill gap in section outside is from top to bottom followed successively by swelling earthen backfill section, clay backfilling section and the first graded broken stone backfill section, institute
It states on the outside of perforation floral tube section and the backfill gap of lower section is that the second graded broken stone backfills section, the perforation floral tube section lateral wall package
There are geotextiles, the bottom end hot-melt adhesive paste of the center well casing has fixed bottom end cap, and bottom is equipped with air driven pump in the center well casing,
The upper end well head of the center well casing is packaged with blank flange, and the blank flange is equipped with Powered Air pipe, landfill-gas collecting
Pipe, Powered Air exhaust pipe, landfill gas probe tube, one end of the Powered Air pipe and the air compressor for being set to ground or more
It is connected, the other end of Powered Air pipe is connected with the air inlet of air driven pump, one end of the Powered Air exhaust pipe and gas
The gas outlet of dynamic pump is connected, and the other end of Powered Air exhaust pipe is connected with atmosphere, one end of the landfill-gas collecting pipe
It is connected with the air-introduced machine for being set to ground or more, the other end of landfill-gas collecting pipe is passed through in the well casing of center, and the landfill gas takes
One end of sample pipe is passed through in the well casing of center, is equipped with percolate delivery pipe in the center well casing, and the one of the percolate delivery pipe
End is connected with the liquid outlet of air driven pump, and the other end of percolate delivery pipe is worn from the side wall of center well casing part above ground level
Out.
The Powered Air pipe, landfill-gas collecting pipe, Powered Air exhaust pipe, landfill gas probe tube and percolate delivery pipe
On be equipped with valve.
Landfill gas pressure gauge is additionally provided on the landfill-gas collecting pipe.
The upper end of the Powered Air exhaust pipe is elbow shape, and nozzle is downward.
The pipe porosity of the perforation floral tube section is 5% or more.
The height of the first graded broken stone backfill section is at least 500mm.
The center well casing is the HDPE pipe that outer diameter is 400mm.
The beneficial effects of the present invention are: air driven pump is arranged in the well casing of center in the present invention, extraneous air is compressed into conduct
The power of air driven pump is avoided in landfill heap using electrical equipment, is prevented quick-fried to export the percolate in heap is filled
It is fried, and the not importing of air, it ensure that the quality of landfill gas.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
In figure: the well casing of the center 1-；2- swelling earthen backfill section；3- clay backfilling section；The first graded broken stone of 4- backfills section；5-
Graduation two rubble backfills section；6- reality pipeline section；7- perforation floral tube section；8- geotextiles；9- fixes bottom end cap；10- blank flange；11-
Air driven pump；12- air compressor；13- air-introduced machine；14- Powered Air pipe；15- landfill-gas collecting pipe；16- landfill gas pressure gauge；
17- Powered Air exhaust pipe；18- percolate delivery pipe；19- landfill gas probe tube；20- deep-well；
It is described in detail below with reference to the embodiment of the present invention referring to attached drawing.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
As shown in Figure 1 to Figure 2, a kind of pumping dewatering device for landfill yard, including deep-well 20, in the deep-well 20
The heart is equipped with center well casing 1, and the lateral wall of the center well casing 1, the inner sidewall of bottom wall and deep-well 20, there are backfills between bottom wall
Gap, the center well casing 1 includes the real pipeline section 6 of top and the perforation floral tube section 7 of lower section, wherein 6 upper end of real pipeline section is pierced by depth
Well 20 simultaneously extends to ground or more, and the backfill gap in 6 outside of reality pipeline section is from top to bottom followed successively by swelling earthen backfill section 2, glues
Earthen backfill section 3 and the first graded broken stone backfill section 4, and the backfill gap in 7 outside of perforation floral tube section and lower section is matched for the second level
Rubble backfills section 5, and 7 lateral wall of perforation floral tube section is enclosed with geotextiles 8, and the bottom end hot-melt adhesive paste of the center well casing 1 has
Bottom end cap 9 is fixed, bottom is equipped with air driven pump 11 in the center well casing 1, and the upper end well head of the center well casing 1 is packaged with flange
Blind plate 10, the blank flange 10 are equipped with Powered Air pipe 14, landfill-gas collecting pipe 15, Powered Air exhaust pipe 17, landfill
Gas probe tube 19, one end of the Powered Air pipe 14 are connected with the air compressor 12 for being set to ground or more, Powered Air
The other end of pipe 14 is connected with the air inlet of air driven pump 11, one end of the Powered Air exhaust pipe 17 and going out for air driven pump 11
Port is connected, and the other end of Powered Air exhaust pipe 17 is connected with atmosphere, one end of the landfill-gas collecting pipe 15 with set
Air-introduced machine 13 more than ground is connected, and the other end of landfill-gas collecting pipe 15 is passed through in center well casing 1, and the landfill gas takes
One end of sample pipe 19 is passed through in center well casing 1, and percolate delivery pipe 18, the percolate discharge are equipped in the center well casing 1
One end of pipe 18 is connected with the liquid outlet of air driven pump 11, and the other end of percolate delivery pipe 18 is above ground level from center well casing 1
Partial side wall is pierced by.
The Powered Air pipe 14, landfill-gas collecting pipe 15, Powered Air exhaust pipe 17, landfill gas probe tube 19 and diafiltration
Valve is equipped on liquid delivery pipe 18.
Landfill gas pressure gauge 16 is additionally provided on the landfill-gas collecting pipe 15.
The upper end of the Powered Air exhaust pipe 17 is elbow shape, and nozzle is downward.
The pipe porosity of the perforation floral tube section 7 is 5% or more.
The height of the first graded broken stone backfill section 4 is at least 500mm.
The center well casing 1 is the HDPE pipe that outer diameter is 400mm.
The diameter of middle-deep well 20 of the present invention is 800mm, and depth is 5 meters, and 1 bottom of center well casing and 20 distance from bottom of deep-well exist
Between 300mm-500mm, well casing 1 top in center is higher by bottom surface 500mm, and swelling earthen backfill section 2 is using bentonite and clay
Mixture, wherein bentonitic mixed ratio is not less than 80%, the height of swelling earthen backfill section 2 is 500mm, clay backfilling section
3 height is 500mm-1000mm, and the second graded broken stone backfill section 5 outside floral tube section 7 of perforating is loaded filter.
The present invention need to only open air compressor 12 and Powered Air pipe 14, percolate delivery pipe 18 when needing to drain
With the valve on Powered Air exhaust pipe 17, draining can be realized；When needing to be evacuated, it need to only open air-introduced machine 13 and landfill gas is received
The abstraction of landfill gas can be realized in valve on collector 15, can monitor guide state by landfill gas pressure gauge 16 in the process.
Air driven pump 11 is arranged in the present invention in center well casing 1, and extraneous air is compressed the power as air driven pump 11, from
And the export of the percolate in heap will be filled, it avoids in landfill heap using electrical equipment, prevents from exploding, and not air
It imports, ensure that the quality of landfill gas.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved direct application
It is within the scope of the present invention in other occasions.
Claims (7)
1. a kind of pumping dewatering device for landfill yard, which is characterized in that including deep-well (20), the center of the deep-well (20)
Equipped with center well casing (1), the lateral wall of the center well casing (1), the inner sidewall of bottom wall and deep-well (20), between bottom wall there are
Gap is backfilled, the center well casing (1) includes the real pipeline section (6) of top and the perforation floral tube section (7) of lower section, wherein real pipeline section
(6) upper end is pierced by deep-well (20) and extends to ground or more, and the backfill gap on the outside of the reality pipeline section (6) is from top to bottom followed successively by
Swelling earthen backfill section (2), clay backfilling section (3) and the first graded broken stone backfill section (4), on the outside of the perforation floral tube section (7) with
The backfill gap of lower section is that the second graded broken stone backfills section (5), and perforation floral tube section (7) lateral wall is enclosed with geotextiles (8),
The bottom end hot-melt adhesive paste of the center well casing (1) has fixed bottom end cap (9), and the interior bottom of the center well casing (1) is equipped with air driven pump
(11), the upper end well head of the center well casing (1) is packaged with blank flange (10), and it is empty that the blank flange (10) is equipped with power
Tracheae (14), landfill-gas collecting pipe (15), Powered Air exhaust pipe (17), landfill gas probe tube (19), the Powered Air pipe
(14) one end is connected with the air compressor (12) for being set to ground or more, the other end and air driven pump of Powered Air pipe (14)
(11) air inlet is connected, and one end of the Powered Air exhaust pipe (17) is connected with the gas outlet of air driven pump (11), moves
The other end of power air exhaust duct (17) is connected with atmosphere, one end of the landfill-gas collecting pipe (15) be set to ground more than
Air-introduced machine (13) be connected, the other end of landfill-gas collecting pipe (15) is passed through in center well casing (1), the landfill gas probe tube
(19) one end is passed through in center well casing (1), is equipped with percolate delivery pipe (18) in the center well casing (1), the percolate
One end of delivery pipe (18) is connected with the liquid outlet of air driven pump (11), and the other end of percolate delivery pipe (18) is from center well casing
(1) side wall of part above ground level is pierced by.
2. a kind of pumping dewatering device for landfill yard according to claim 1, which is characterized in that the Powered Air
Manage (14), landfill-gas collecting pipe (15), Powered Air exhaust pipe (17), landfill gas probe tube (19) and percolate delivery pipe (18)
On be equipped with valve.
3. a kind of pumping dewatering device for landfill yard according to claim 1, which is characterized in that the landfill gas is received
Landfill gas pressure gauge (16) are additionally provided on collector (15).
4. a kind of pumping dewatering device for landfill yard according to claim 1, which is characterized in that the Powered Air
The upper end of exhaust pipe (17) is elbow shape, and nozzle is downward.
5. a kind of pumping dewatering device for landfill yard according to claim 1, which is characterized in that the perforation floral tube
The pipe porosity of section (7) is 5% or more.
6. a kind of pumping dewatering device for landfill yard according to claim 1, which is characterized in that the first order is matched
The height of rubble backfill section (4) is at least 500mm.
7. a kind of pumping dewatering device for landfill yard according to claim 1, which is characterized in that the center well casing
(1) it is managed for the HDPE that outer diameter is 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391604.8A CN109339026A (en) | 2018-11-21 | 2018-11-21 | A kind of pumping dewatering device for landfill yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391604.8A CN109339026A (en) | 2018-11-21 | 2018-11-21 | A kind of pumping dewatering device for landfill yard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109339026A true CN109339026A (en) | 2019-02-15 |
Family
ID=65316816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811391604.8A Withdrawn CN109339026A (en) | 2018-11-21 | 2018-11-21 | A kind of pumping dewatering device for landfill yard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109339026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014225A (en) * | 2019-12-04 | 2020-04-17 | 中科鼎实环境工程有限公司 | Be used for aerobic bioreactor technology gas well device of taking out notes |
-
2018
- 2018-11-21 CN CN201811391604.8A patent/CN109339026A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014225A (en) * | 2019-12-04 | 2020-04-17 | 中科鼎实环境工程有限公司 | Be used for aerobic bioreactor technology gas well device of taking out notes |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190215 |
|
| WW01 | Invention patent application withdrawn after publication |