CN107737788A - A kind of sanitary filling field landfill gas collection processing system implementing and method - Google Patents
A kind of sanitary filling field landfill gas collection processing system implementing and method Download PDFInfo
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- CN107737788A CN107737788A CN201711032093.6A CN201711032093A CN107737788A CN 107737788 A CN107737788 A CN 107737788A CN 201711032093 A CN201711032093 A CN 201711032093A CN 107737788 A CN107737788 A CN 107737788A
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- processing system
- skirt
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- 238000012545 processing Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 59
- 238000010276 construction Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000013461 design Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 12
- 238000005538 encapsulation Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 153
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
- B09B1/004—Covering of dumping sites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of sanitary filling field landfill gas collection processing system implementing, including gas skirt, assist shroud and dispensing device, gas skirt is uniformly arranged on the top surface of landfill yard, assist shroud is provided between adjacent four gas skirts, assist shroud connects gas skirt by the first airway tube, is provided with gas operated device in gas skirt, isocon is provided with gas operated device, isocon connects discharge, discharge connection dispensing device by turning on collection air valve.Its method includes：1) refuse landfill is constructed, 2) garbage loading embeading is compacted, 3) gas collection component is laid, 4) dispensing device is installed, 5) pipeline is laid and 6) landfill gas collection processing system implementing trial operation.The present invention is simple in construction, practical, not only gas caused by the rubbish in landfill yard can all be carried out into recycling utilization, and can reduce the content of moisture in gas, and the pollution to environment is reduced while Gas recovery rate is improved.
Description
Technical field
The present invention relates to a kind of sanitary filling field landfill gas collection processing system implementing and method.
Background technology
Sanitary landfills is widely used as the final disposal mode of domestic waste all over the world, this method
With small investment, processing cost is low, treating capacity is big, simple operation and other advantages.But this method is gone back except causing conventional pollution
Produce the largely rubbish landfill gas using methane and carbon dioxide as main component.
Rubbish landfill gas is a kind of greenhouse gases for having larger harm to health and natural environment, but it is one again
The reproducible energy of kind, it, which is recycled, to produce larger economy, society and environmental benefit.
After rubbish enters sanitary filling field, after overcompaction covers, extraneous oxygen cannot be entered in rubbish body.When
During landfill operation into rubbish body oxygen exhausted by the aerobic metabolism of microorganism after, rubbish body is gradually transitions anaerobism point
The stage of solution.Meanwhile as the decrease of aerobic metabolic process, initial a large amount of caused carbon dioxide ratios gradually reduce；
With the progress of anaerobic fermentation process, the ratio of methane gradually steps up.In transition stage, mainly there is hydrogen generation.Handling
After the initial unstable stage, the concentration of methane and carbon dioxide can keep basicly stable in a very long time.
It is relatively simple to the processing unit of rubbish landfill gas in the prior art, by inserting the device into rubbish, to difference
Rubbish landfill gas caused by the rubbish of depth is recycled, although can be reclaimed to part rubbish landfill gas,
Can also some rubbish landfill gas be directly entered air, pollute environment.
The content of the invention
Present invention aims at provide a kind of sanitary filling field landfill gas for the deficiency present in prior art to receive
Collect the technical scheme of processing system and method, not only gas caused by the rubbish in landfill yard can all be recycled
Utilize, and the content of moisture in gas can be reduced, the dirt to environment is reduced while Gas recovery rate is improved
Dye.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of sanitary filling field landfill gas collection processing system implementing, it is characterised in that：Including gas skirt, assist shroud and divide gas
Device, gas skirt are uniformly arranged on the top surface of landfill yard, are provided with assist shroud between adjacent four gas skirts, assist shroud passes through
First airway tube connects gas skirt, is provided with gas operated device in gas skirt, isocon is provided with gas operated device, isocon leads to
Cross conducting collection air valve connection discharge, discharge connection dispensing device；By the design of gas skirt and assist shroud, will can fill
Gas caused by rubbish is all collected in, is prevented gas is unprocessed to be directly discharged in air, is not only polluted environment, and
In the presence of certain potential safety hazard, while the gas after processing is easy to recycle, and reduces the waste of resource.
Further, sleeve is vertically arranged with the center of gas skirt, the first through hole is evenly arranged with the side of sleeve,
Spaced set has the first demarcation strip and the second demarcation strip between sleeve and the inwall of gas skirt, and the first demarcation strip and second separate
The inside of gas skirt is divided into three air collecting chambers by plate, can shunt the gas in rubbish by three air collecting chambers, is easy to
The recovery of second airway tube.
Further, support is provided with each air collecting chamber, drying layer is installed on support, the air collecting chamber positioned at outside
Via hole is evenly arranged with side, via hole matches with the first airway tube, and via hole is located at the lower section of support, passes through drying
The design of layer, the gas in gas skirt and assist shroud can be dried to processing, reduce the moisture in gas, improve gas
The utilization rate of body.
Further, be filled with sponge in drying layer, sponge is to the good absorbing effect of moisture, and manufacturing cost is low, use
Long lifespan.
Further, gas operated device includes the second airway tube, connection cover and pilot pin, and fixation connects respectively for connection cover and pilot pin
The top and bottom of the second airway tube are connected on, the second through hole, the second through hole are evenly arranged with the side of the second airway tube
Match with the first through hole, compared with of the prior art, the second airway tube is not inserted directly into landfill yard the second airway tube
Bottom, effectively gas caused by rubbish and percolate can be separated, prevent that percolate is tubular by the second air guide
Into suck-back, and then influence the collection treatment effect of gas, pilot pin improve connected between the second airway tube and rubbish heap it is steady
It is qualitative.
Further, blower fan is provided with discharge, the gas in gas skirt can be passed through by isocon and collection by blower fan
Tracheae is delivered in dispensing device, and power is provided for the recycling of gas.
Further, biogas burner is provided with isocon, when biogas burner can be by gas unnecessary in isocon
Carry out burning processing, reduce the pressure in isocon and discharge, improve landfill gas collection processing system implementing stability and can
By property, extend its service life.
Further, dispensing device includes casing, and gas-distributing pipe is symmetrically arranged with left and right sides of casing, pressure is provided with casing
Contracting chamber and branch chamber, compression chamber are located at the lower section of branch chamber, and compression chamber connects branch chamber by appendix, on the side of branch chamber
Transfer port is evenly arranged with, transfer port is connected with gas-distributing pipe, and gas, which enters after compression by appendix to enter in compression chamber, to be shunted
Chamber, it is easy to the use needs of distinct device.
Further, gasing pump is provided with appendix, gasing pump can make the stable conveying of the compressed gas in compression chamber
To branch chamber.
Using a kind of method of sanitary filling field landfill gas collection processing system implementing processing landfill gas described above, it is special
Sign is to comprise the following steps：
1) refuse landfill is constructed
A, first according to the design requirement of drawing, the construction area of refuse landfill is selected, and on corresponding construction area
The excavation of refuse landfill is carried out, until the requirement for excavating the foundation ditch formed and layout design matches；
B, and then to the bottom surface of foundation ditch and side compacting processing is carried out, and concrete is carried out along the bottom surface of foundation ditch and side
Pour, after concrete reaches setting intensity, filter layer construction is carried out on the bottom surface of foundation ditch, and at the both sides of filter layer or bottom
Portion is connected by conduit with the continuous filter of outside；
2) garbage loading embeading is compacted
After refuse landfill construction terminates, by dumping to landfill yard, and with rammer compacter by garbage truck, then
Rubbish is recharged, rammer compacter continues to be compacted, until the distance between the rubbish height after compacting and top surface of landfill yard are less than
50cm, then remove rammer compacter；
3) gas collection component is laid
A, gas operated device is equidistantly laid by design requirement on the rubbish first in landfill yard, and by gas operated device
Gas operated device is fixed in pilot pin insertion rubbish, ensures that the depth of the bottom insertion rubbish of the second airway tube is no more than the
The position of the second through hole of row is most descended on two airway tubes, until gas operated device all in landfill yard installs；
B, and then on each gas operated device gas skirt is installed, first connection cover is pulled down, gas skirt is transferred, make second to lead
Tracheae is inserted vertically into the sleeve of gas skirt, until the bottom of gas skirt is bonded completely with the upper surface of rubbish, then by connection cover
Installed in the top of the second airway tube, in order until all gas skirts are installed；
C, assist shroud then is installed between four rectangular gas skirts of adjacent sets, makes bottom surface and the rubbish of assist shroud
Upper surface is bonded, and the side of assist shroud is bonded with the lateral surface of four gas skirts, by between assist shroud and gas skirt after fixing
Gap carries out encapsulation process with fluid sealant, until space all in landfill yard fills up complete；
D, will finally be connected on the top surface of each assist shroud by the first airway tube and the via hole on adjacent gas skirt
Connect, and carry out encapsulation process.
4) dispensing device is installed
The pit that size and dispensing device match is being opened up apart from 100~200m of refuse landfill position, after leveling
With concreting, after concrete reaches setting intensity, dispensing device is fixed in pit, and in the side of dispensing device
It is upper to be attached by gas-distributing pipe and external equipment；
5) pipeline is laid
Isocon is drawn on the top of the second airway tube on each gas operated device, will pass through conducting between each isocon
Collection air valve is attached with discharge, and discharge is ultimately connected to the interface end of dispensing device, blower fan is provided with discharge, together
When biogas burner is installed on each isocon；
6) landfill gas collection processing system implementing trial operation
After treating all devices installation connection, gas, a part of gas warp are discharged by the rubbish in refuse landfill
Enter the second airway tube after air collecting chamber shunting in gas skirt, while place is dried in the gas of moistening by the drying layer in air collecting chamber
Reason, another part gas is entered in the air collecting chamber of gas skirt through assist shroud by the first airway tube, unified to enter the second airway tube,
Gas in second airway tube is flow in discharge through diverter, and discharge uniformly delivers the gas to dispensing device, through pressure
Corresponding equipment is delivered to after contracting pressurization by gas-distributing pipe to use, unnecessary gas is then carried out by biogas burner in isocon
Burning is handled.
The present invention is by adopting the above-described technical solution, have the advantages that：
1st, by the design of gas skirt and assist shroud, gas caused by rubbish in landfill yard can all be collected, prevented
Gas is unprocessed to be directly discharged in air, not only pollutes environment, and certain potential safety hazard be present, while after processing
Gas is easy to recycle, and reduces the waste of resource.
2nd, the air collecting chamber in gas skirt can be shunted the gas in rubbish, be easy to the recovery of the second airway tube, together
When drying layer the gas in gas skirt and assist shroud can be dried to processing, reduce the moisture in gas, improve gas
The utilization rate of body.
3rd, compared with of the prior art, the second airway tube is not inserted directly into the bottom of landfill yard the second airway tube, can
Effectively to be separated gas caused by rubbish and percolate, prevent percolate from forming suck-back by the second airway tube, enter
And the collection treatment effect of gas is influenceed, pilot pin improves the stability connected between the second airway tube and rubbish heap.
The present invention is simple in construction, practical, not only can all be returned gas caused by the rubbish in landfill yard
Receive processing to utilize, and the content of moisture in gas can be reduced, reduce while Gas recovery rate is improved to ring
The pollution in border.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is handled for landfill gas collection in a kind of sanitary filling field landfill gas collection processing system implementing of the present invention and method
The structural representation of system；
Fig. 2 is the design sketch of gas skirt in the present invention；
Fig. 3 is the structural representation of gas skirt in the present invention；
Fig. 4 is the connection diagram between gas skirt and assist shroud in the present invention；
Fig. 5 is the structural representation of gas operated device in the present invention；
Fig. 6 is the structural representation of dispensing device in the present invention.
In figure：1- landfill yards；2- gas skirts；3- dispensing devices；4- gas operated devices；5- isocons；6- assist shrouds；7- biogas
Burner；8- conducting collection air valves；9- discharges；10- blower fans；11- gas-distributing pipes；12- via holes；13- sleeves；14- first separates
Plate；The demarcation strips of 15- second；The through holes of 16- first；17- air collecting chambers；18- supports；19- drying layers；The airway tubes of 20- first；21-
Second airway tube；The through holes of 22- second；23- connection covers；24- pilot pins；25- casings；26- compression chambers；27- branch chambers；28-
Appendix；29- gasing pumps.
Embodiment
As shown in Figures 1 to 6, it is a kind of sanitary filling field landfill gas collection processing system implementing of the present invention, including gas skirt
2nd, assist shroud 6 and dispensing device 3, gas skirt 2 are uniformly arranged on the top surface of landfill yard 1, are vertically arranged at the center of gas skirt 2
There is sleeve 13, the first through hole 16 is evenly arranged with the side of sleeve 13, between sleeve 13 and the inwall of gas skirt 2 equidistantly
It is provided with the first demarcation strip 14 and the second demarcation strip 15, the first demarcation strip 14 and the second demarcation strip 15 are by the inside points of gas skirt 2
Into three air collecting chambers 17, the gas in rubbish can be shunted by three air collecting chambers 17, be easy to the second airway tube 21
Recovery, support 18 is provided with each air collecting chamber 17, drying layer 19 is installed on support 18, the air collecting chamber 17 positioned at outside
Via hole 12 is evenly arranged with side, via hole 12 matches with the first airway tube 20, and via hole 12 is located under support 18
Side, by the design of drying layer 19, the gas in gas skirt 2 and assist shroud 6 can be dried to processing, reduced in gas
Moisture, improves the utilization rate of gas, be filled with sponge in drying layer 19, and sponge is to the good absorbing effect of moisture, and system
Cause low, a service life length.
Assist shroud 6 is provided between adjacent four gas skirts 2, by the design of gas skirt 2 and assist shroud 6, will can be filled out
Bury gas caused by rubbish in field 1 all to collect, prevent gas is unprocessed to be directly discharged in air, not only pollute environment,
And certain potential safety hazard be present, while the gas after processing is easy to recycle, and reduces the waste of resource, assist shroud 6
Gas skirt 2 is connected by the first airway tube 20, is provided with gas operated device 4 in gas skirt 2, gas operated device 4 includes the second airway tube
21st, connection cover 23 and pilot pin 24, connection cover 23 and pilot pin 24 are respectively fixedly connected with the top and bottom of the second airway tube 21
Hold, the second through hole 22, the second through hole 22 and the phase of the first through hole 16 are evenly arranged with the side of the second airway tube 21
Match somebody with somebody, compared with of the prior art, the second airway tube 21 is not inserted directly into the bottom of landfill yard 1 the second airway tube 21, can be with
Effectively gas caused by rubbish and percolate are separated, prevents percolate from forming suck-back by the second airway tube 21, enters
And the collection treatment effect of gas is influenceed, pilot pin 24 improves the stability connected between the second airway tube 21 and rubbish heap.
Isocon 5 is provided with gas operated device 4, biogas burner 7 is provided with isocon 5, when biogas burner 7 can
So that gas unnecessary in isocon 5 is carried out into burning processing, reduce the pressure in isocon 5 and discharge 9, improve landfill gas
The stability and reliability of collection processing system implementing, extend its service life, and isocon 5 connects discharge by turning on collection air valve 8
9, blower fan 10 is provided with discharge 9, can be defeated by isocon 5 and discharge 9 by the gas in gas skirt 2 by blower fan 10
Deliver in dispensing device 3, provide power for the recycling of gas, discharge 9 connects dispensing device 3, and dispensing device 3 includes case
Body 25, the left and right sides of casing 25 are symmetrically arranged with gas-distributing pipe 11, compression chamber 26 and branch chamber 27 are provided with casing 25, compression
Chamber 26 is located at the lower section of branch chamber 27, and compression chamber 26 connects branch chamber 27 by appendix 28, gas transmission is provided with appendix 28
Pump 29, gasing pump 29 can make compressed gas in compression chamber 26 it is stable be delivered to branch chamber 27, on the side of branch chamber 27
Transfer port is evenly arranged with, transfer port connects with gas-distributing pipe 11, and gas enters in compression chamber 26 by appendix 28 to enter after compression
Enter branch chamber 27, be easy to the use needs of distinct device.
Using a kind of method of sanitary filling field landfill gas collection processing system implementing processing landfill gas described above, including
Following steps：
1) refuse landfill is constructed
A, first according to the design requirement of drawing, the construction area of refuse landfill 1 is selected, and on corresponding construction area
The excavation of refuse landfill 1 is carried out, until the requirement for excavating the foundation ditch formed and layout design matches；
B, and then to the bottom surface of foundation ditch and side compacting processing is carried out, and concrete is carried out along the bottom surface of foundation ditch and side
Pour, after concrete reaches setting intensity, filter layer construction is carried out on the bottom surface of foundation ditch, and at the both sides of filter layer or bottom
Portion is connected by conduit with the continuous filter of outside；
2) garbage loading embeading is compacted
After the construction of refuse landfill 1 terminates, by dumping to landfill yard 1, and with rammer compacter by garbage truck, so
After recharge rubbish, rammer compacter continues to be compacted, until the rubbish height after compacting is less than with the distance between the top surface of landfill yard 1
50cm, then remove rammer compacter；
3) gas collection component is laid
A, gas operated device 4 is equidistantly laid on the rubbish first in landfill yard 1 by design requirement, and by gas operated device 4
On pilot pin 24 insert rubbish in gas operated device 4 is fixed, ensure the second airway tube 21 bottom insertion rubbish depth
Degree is no more than the position that the second through hole 22 of row is most descended on the second airway tube 21, until gas operated device 4 all in landfill yard 1
Install；
Gas skirt 2 is installed, first connection cover 23 is pulled down, gas skirt 2 is transferred, made b, and then on each gas operated device 4
Second airway tube 21 is inserted vertically into the sleeve 13 of gas skirt 2, until the bottom of gas skirt 2 and the upper surface of rubbish are pasted completely
Close, then connection cover 23 is arranged on to the top of the second airway tube 21, in order until all gas skirts 2 are installed；
Assist shroud 6 is then installed between four rectangular gas skirts 2 of adjacent sets, make bottom surface and the rubbish of assist shroud 6 c,
The upper surface fitting of rubbish, the side of assist shroud 6 is bonded with the lateral surface of four gas skirts 2, by assist shroud 6 and gas skirt after fixing
Gap between 2 carries out encapsulation process with fluid sealant, until space all in landfill yard 1 fills up complete；
D, finally the first airway tube 20 and the via hole 12 on adjacent gas skirt 2 will be passed through on the top surface of each assist shroud 6
It is attached, and carries out encapsulation process.
4) dispensing device 3 is installed
The pit that size and dispensing device 3 match, leveling are being opened up apart from 1100~200m of refuse landfill position
Concreting is used afterwards, and after concrete reaches setting intensity, dispensing device 3 is fixed in pit, and in dispensing device 3
It is attached on side by gas-distributing pipe 11 with external equipment；
5) pipeline is laid
Isocon 5 is drawn on the top of the second airway tube 21 on each gas operated device 4, will be led between each isocon 5
Cross conducting collection air valve 8 to be attached with discharge 9, discharge 9 is ultimately connected to the interface end of dispensing device 3, on discharge 9 pacifies
Equipped with blower fan 10, while biogas burner 7 is installed on each isocon 5；
6) landfill gas collection processing system implementing trial operation
After treating all devices installation connection, gas, a part of gas warp are discharged by the rubbish in refuse landfill 1
Air collecting chamber 17 enters the second airway tube 21 after shunting in gas skirt 2, while the drying layer 19 in air collecting chamber 17 is by the gas of moistening
Processing is dried, another part gas is entered in the air collecting chamber 17 of gas skirt 2 through assist shroud 6 by the first airway tube 20, system
One enters the second airway tube 21, and the gas in the second airway tube 21 is converged into discharge 9 through isocon 5, and discharge 9 is unified will
Gas is delivered to dispensing device 3, and being delivered to corresponding equipment by gas-distributing pipe 11 after compressed pressurization uses, more in isocon 5
Remaining gas then carries out burning processing by biogas burner 7.
The specific embodiment of the present invention is these are only, but the technical characteristic of the present invention is not limited thereto.It is any with this hair
Based on bright, to realize essentially identical technique effect, made ground simple change, equivalent substitution or modification etc., all cover
Among protection scope of the present invention.
Claims (10)
- A kind of 1. sanitary filling field landfill gas collection processing system implementing, it is characterised in that：Including gas skirt, assist shroud and gas is divided to fill To put, the gas skirt is uniformly arranged on the top surface of landfill yard, and the assist shroud is provided between adjacent four gas skirts, The assist shroud connects the gas skirt by the first airway tube, and gas operated device, the air guide dress are provided with the gas skirt Put and be provided with isocon, the isocon connects discharge by turning on collection air valve, divides gas described in the discharge connection Device.
- A kind of 2. sanitary filling field landfill gas collection processing system implementing according to claim 1, it is characterised in that：The collection Sleeve is vertically arranged with the center of gas hood, the first through hole, the sleeve and institute are evenly arranged with the side of the sleeve Spaced set has the first demarcation strip and the second demarcation strip, first demarcation strip and described second between stating the inwall of gas skirt The inside of the gas skirt is divided into three air collecting chambers by demarcation strip.
- A kind of 3. sanitary filling field landfill gas collection processing system implementing according to claim 2, it is characterised in that：Each institute State and support is provided with air collecting chamber, drying layer is installed on the support, on the side of the air collecting chamber in outside Even to be provided with via hole, the via hole matches with first airway tube, and the via hole is located at the lower section of the support.
- A kind of 4. sanitary filling field landfill gas collection processing system implementing according to claim 3, it is characterised in that：It is described dry Sponge is filled with dry layer.
- A kind of 5. sanitary filling field landfill gas collection processing system implementing according to claim 2, it is characterised in that：It is described to lead Device of air includes the second airway tube, connection cover and pilot pin, and the connection cover and the pilot pin are respectively fixedly connected with described The top and bottom of second airway tube, the second through hole are evenly arranged with the side of second airway tube, described second passes through Through hole matches with first through hole.
- A kind of 6. sanitary filling field landfill gas collection processing system implementing according to claim 1, it is characterised in that：The collection Blower fan is provided with tracheae.
- A kind of 7. sanitary filling field landfill gas collection processing system implementing according to claim 1, it is characterised in that：Described point Biogas burner is provided with flow tube.
- A kind of 8. sanitary filling field landfill gas collection processing system implementing according to claim 1, it is characterised in that：Described point Device of air includes casing, and gas-distributing pipe is symmetrically arranged with left and right sides of the casing, and compression chamber is provided with the casing and is divided Chamber is flowed, the compression chamber is located at the lower section of the branch chamber, and the compression chamber connects the branch chamber by appendix, described point Flow and be evenly arranged with transfer port on the side of chamber, the transfer port connects with the gas-distributing pipe.
- A kind of 9. sanitary filling field landfill gas collection processing system implementing according to claim 7, it is characterised in that：It is described defeated Gasing pump is provided with tracheae.
- 10. use a kind of sanitary filling field landfill gas collection processing system implementing processing landfill gas as claimed in claim 1 Method, it is characterised in that comprise the following steps：1) refuse landfill is constructedA, the construction area of refuse landfill is selected according to the design requirement of drawing first, and carried out on corresponding construction area The excavation of refuse landfill, until the requirement for excavating the foundation ditch formed and layout design matches；B, and then to the bottom surface of foundation ditch and side compacting processing is carried out, and carries out concrete along the bottom surface of foundation ditch and side and pours Build, after concrete reaches setting intensity, filter layer construction is carried out on the bottom surface of foundation ditch, and in the both sides of filter layer or bottom Connected by conduit with the continuous filter of outside；2) garbage loading embeading is compactedAfter refuse landfill construction terminates, by dumping to landfill yard, and with rammer compacter then garbage truck is refilled Rubbish is filled out, rammer compacter continues to be compacted, until the rubbish height after compacting is less than 50cm with the distance between the top surface of landfill yard, connects Removal rammer compacter；3) gas collection component is laidA, gas operated device is equidistantly laid by design requirement on the rubbish first in landfill yard, and by the positioning on gas operated device Gas operated device is fixed in pin insertion rubbish, ensures that the depth of the bottom insertion rubbish of the second airway tube is led no more than second The position of the second through hole of row is most descended on tracheae, until gas operated device all in landfill yard installs；B, and then on each gas operated device gas skirt is installed, first connection cover is pulled down, gas skirt is transferred, make the second airway tube It is inserted vertically into the sleeve of gas skirt, until the bottom of gas skirt is bonded completely with the upper surface of rubbish, then connection cover is installed On the top of the second airway tube, in order until all gas skirts are installed；C, assist shroud then is installed between four rectangular gas skirts of adjacent sets, makes the bottom surface of assist shroud and the upper table of rubbish Face is bonded, and the side of assist shroud is bonded with the lateral surface of four gas skirts, by the gap between assist shroud and gas skirt after fixing Encapsulation process is carried out with fluid sealant, until space all in landfill yard fills up complete；D, will be finally attached on the top surface of each assist shroud by the first airway tube and the via hole on adjacent gas skirt, and Carry out encapsulation process.4) dispensing device is installedThe pit that size and dispensing device match is being opened up apart from 100~200m of refuse landfill position, with mixed after leveling Solidifying soil is poured, and after concrete reaches setting intensity, dispensing device is fixed in pit, and leads on the side of dispensing device Gas-distributing pipe is crossed to be attached with external equipment；5) pipeline is laidIsocon is drawn on the top of the second airway tube on each gas operated device, by between each isocon by turning on gas collection Valve is attached with discharge, and discharge is ultimately connected to the interface end of dispensing device, is provided with blower fan on discharge, while Biogas burner is installed on each isocon；6) landfill gas collection processing system implementing trial operationAfter treating all devices installation connection, gas is discharged by the rubbish in refuse landfill, a part of gas is through gas collection Enter the second airway tube after air collecting chamber shunting in cover, while processing is dried in the gas of moistening by the drying layer in air collecting chamber, Another part gas is entered in the air collecting chamber of gas skirt through assist shroud by the first airway tube, unified to enter the second airway tube, the Gas in two airway tubes is flow in discharge through diverter, and discharge uniformly delivers the gas to dispensing device, compressed Corresponding equipment is delivered to after pressurization by gas-distributing pipe to use, unnecessary gas is then fired by biogas burner in isocon Burning processing.
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| CN107737788B (en) | 2019-10-25 |
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