CN105420283B - A method of discarded roadway is filled using rubbish and produces biomass energy - Google Patents
A method of discarded roadway is filled using rubbish and produces biomass energy Download PDFInfo
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- CN105420283B CN105420283B CN201510949609.8A CN201510949609A CN105420283B CN 105420283 B CN105420283 B CN 105420283B CN 201510949609 A CN201510949609 A CN 201510949609A CN 105420283 B CN105420283 B CN 105420283B
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
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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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Abstract
The invention discloses a kind of methods for filling discarded roadway using rubbish and producing biomass energy, belong to biotechnology and coal resources field of comprehensive utilization.The present invention is a kind of method that biotechnology combination biomass garbage and two large resource of discarded roadway are carried out methane phase, first screening municipal refuse and agriculture and forestry rubbish, then cultivates hydrogen-producing acetogens bacterium colony and methanogen bacterium colony respectively using biotechnology；It selects coal body to save complete Abandoned Tunnel, sorted rubbish and bacterium colony is put into discarded roadway, then inject rubbish slurries and water into roadway, closing makes the tunnel of filling form a sealing device, utilizes biofermentation output methane.The present invention fills abandoned mine using biomass garbage, not only can solve the waste of abandoned mine space and land resource, but also can use larger molecular organics production methane in microbial reduction coal and alleviate environmental pressure to obtain new energy.
Description
Technical field
The present invention relates to a kind of method for filling discarded roadway using rubbish and producing biomass energy, specifically biological skill
The method that art combination biomass garbage and two large resource of discarded roadway carry out methane phase, belongs to biotechnology and coal resources are comprehensive
Utilize field.
Background technique
While modern humans' production development, many biomass garbages are produced, municipal refuse, crop waste can be divided into
Object, forestry waste etc..And these rubbish contain a large amount of organic matters, have larger utility value.It sufficiently recycles and utilizes biology
Matter rubbish not only reduces destruction of the city to environment, moreover it is possible to create valuable resource.In recent years, by biomass garbage into
Row effective use is gradually risen, but most of still in earth's surface progress landfill disposal, on the one hand such processing mode can waste
Precious land resource, can also do great damage to the ecological environment of earth's surface.
In terms of coal mine, due to the difficult or following mine reserves of mining conditions have not caught up with benefit etc., cause big
Measure the generation of abandoned mine.A large amount of goafs that abandoned mine is formed have biggish potential hazard, as gob collapse causes
Surface subsidence, land resource type, the deterioration of the ecological environment etc..Therefore carrying out filling to goaf is to reduce these potential hazards
The beneficial behave occurred.In addition, how to efficiently use this often still containing the coal resources that some is left in discarded roadway
It is significant for the sustainable use of resource that resource is left in part.
A method of discarded roadway is filled using rubbish and produces biomass energy, on the one hand can be effectively reduced earth's surface and be filled out
Bury the destruction that biomass garbage generates land resource and ecological environment caused by this method of the energy；On the other hand by city
The pretreatment of rubbish, the goafs such as the roadway in abandoned mine are fills up to as a kind of special material, and high degree disappears
In addition to a series of geological disasters as caused by goaf；Simultaneously the residual coal resources in discarded roadway also can to utilization.
Therefore, this method is significant for building a resource-conserving and environment-friendly society.
Summary of the invention
The present invention is intended to provide a kind of technique side for filling abandoned mine using biomass garbage and producing biomass energy
Method.Abandoned mine is filled using biomass garbage, not only can solve the waste problem of abandoned mine space and land resource, but also can
To produce methane using larger molecular organics in microbial reduction coal to obtain new energy.In this way, improving the utilization of resources
Effectively mitigate environmental pressure caused by municipal refuse landfill while rate.
The present invention provides a kind of methods for filling abandoned mine using rubbish and producing biomass energy, including following step
It is rapid:
(1) municipal refuse is screened:
Municipal refuse is first passed through artificial roughing to sort bulk object, surplus materials is then put into simple screening
Machine is screened: conveyer belt uniform speed slow municipal refuse transported, when rubbish is by conveying end of tape 1m, and the fixation of upper end
Metallics attraction in rubbish is caused a deviation from running track to complete magnetic separation process by magnet；Then ventilation blower against the wind will under
The light-duty substance fallen in rubbish is separated with heavy substance, and last material enters rotary screen；Rotary screen gradient is set as 3 °~5 °,
There are 13mm or less grid, 13mm~50mm grid and 50mm~200mm grid in roller, grid is to be fixedly mounted on rotary screen
It is interior, such material enter in roller after with roller rotation, the screening grid point that the material of different size passes through different size
From: the grid first less than 13mm filters the little particles such as soil, and then 13mm~50mm screens grid for kitchens such as vegetables, pericarps
Remaining rubbish is separated, and the large piece articles such as last residue bottle, packing box can be screened grid separation by 50mm~200mm, more greatly
Material directly from bottom end be detached from；Biomass garbage as rubbish from cooking is isolated by this series comprehensive screening technology；
(2) agriculture, forestry rubbish are crushed to partial size with crusher is 10cm or less；
(3) rubbish from cooking and agriculture, forestry rubbish are separately compacted with compacting machine: rubbish from cooking is compacted into cube block；
Agriculture, forestry rubbish are compacted into the reeded cuboid block in middle part with the spiral compacting machine of hot type in 5:1~10:1 ratio；
(4) hydrogen-producing acetogens bacterium colony and methanogen bacterium are cultivated respectively using Modern microbiological separation and pure culture technigne
It falls；Slurries are made using biomass liquefying technology in broken rubbish.Finally hydrogen-producing acetogens bacterium colony is accessed in slurries and is sent out
Ferment forms and is rich in acetic acid and the higher rubbish slurries of this decomposer degree of enrichment；
(5) the rubbish from cooking block of compacting is put into the groove of agriculture and forestry executing garbage, adds and prepares above executing garbage
Methane phase bacterium solution, then covered with agriculture and forestry executing garbage, be closed recess, form a confined reaction room, enrichment culture produces first
Alkane bacterium；Length × width × height=1m × 1m × 1m cube reaction chamber is formed after step (5) lid closes.
(6) selection coal body saves complete Abandoned Tunnel, by the reparation of surrounding loophole, filling, whitewashing, repairs smooth, holding
Airtightness is good；Roadway ground is handled, first ground is repaired smooth, then layer overlay is with a thickness of 10cm~15cm coal dust or ash
Divide, then spreading 2 layers of impermeable composite membrane (200mm) above, then spreading one layer of 15cm~20cm fine sand above, then layer overlay
The residual coal of 20cm~30cm；
The Abandoned Tunnel is generally longer, it is proposed that is filled in a manner of sublevel fill stoping, generally takes and carry out every 200m
Filling.
(7) by the compacting executing garbage in step (5) using car-haul device move in discarded roadway be layered, misplace,
Every putting (interlamellar spacing is 10cm~15cm, wrong away from be to be compacted the half of executing garbage side length with spacing), and between executing garbage
Lump coal is inserted, puts the number of plies depending on roadway height；
(8) it ferments in tunnel for the ease of later period microorganism, carries out the pumping work of 10h~15h to tunnel with aspiration pump
Make；
(9) underground water or mine water are subjected to enrichment culture, are concentrated, are heated to 35 DEG C or so；
(10) the rubbish slurries of step (4) are injected in discarded roadway by pipeline；
(11) after slurries sedimentation is gone down, the water of step (9) heating is injected in roadway by pipeline；
(12) all valves (being equipped with valve on the pipeline that every kind of raw material is connect with tunnel) are closed, hermatic door is closed, this
Sample is completely closed in tunnel, consumes O using the decomposition reaction of aerobe 10d~15d early period2, it is conducive to later period anaerobe
Anaerobic reaction, i.e., decomposition rubbish and coal seam in larger molecular organics finally generate methane by some column metabolic responses；
(13) it after the reaction of 30d~45d, produces gas and is in stationary phase；Gas is detected using methane Concentration Measurement device
After concentration reaches 70%~80%, it can first extract 1L gas and carry out output gas analysis, at this moment the gas componant of output is mainly CO2
And CH4(accounting for 90% or more altogether), there are also H2 S、H2, CO(account for 5%~7% altogether) and other hydrocarbon gas (3% or less)；Tunnel is carried out
Pumping, these last gases pass through Gas-treating processes, more mature at present and stable pressure WATER-WASHING METHOD technique: according to CH4With
CO2、H2S different solubility in water and realize that gas separates, under conditions of whole process temperature change is little, CH4?
Solubility with pressure variation in water is little, and CO2And H2The solubility of S at elevated pressures in water is big, and CO2With
H2S is released because solubility in water is small at low pressures, to realize to CO2And H2S gas component
Purification is completed in separation；Then (methane concentration at this time can be 90% or more) is dried in residual gas with desiccant,
It is absorbed again with organic solvent, the methane gas of high concentration finally can be obtained using pressurization；
(14) client is transported to finally by canned or pipeline transportation to utilize.
The compaction process of rubbish is quite mature, and biomass garbage itself moisture as rubbish from cooking is higher, but viscous
Knot property is bad, we can suitably dry, and is crushed, and the binder that suitable dosage is then added is compacted；This life of forestry rubbish
Lignin content is higher, will be plasticized and rich viscosity after heating when its temperature reaches 140~180 DEG C, because without again
Adding additives in compacting process.In view of the seasonality of agricultural wastes, we can when agricultural wastes recycle dull season master
Forestry rubbish is recycled, and woods agricultural waste can be carried out when agricultural waste recycling is more and be mixed into 5 ︰, 1~10 ︰, 1 ratio
Row heating compacting, again without addition binder.
Studies have shown that accounting for the 67% of nature methane content by the methane that substrate generates of acetate.And hydrogen-producing acetogenic bacteria
It can use organic matter generation acetic acid and hydrogen, both substances be the substrate that methanogen methane phase utilizes, biological bacterium colony again
Culture technique can increase the richness of special bacteria, to enhance the capacity of decomposition of later period coal.
Containing there are many microorganisms decomposed using the carbon source in coal in underground water and mine water.Underground water is enriched with
Culture, is capable of increasing microorganism richness therein, the degradation methane phase of coal also may be implemented.Underground water is heated to 30 DEG C of left sides
The right side is because temperature section in this way heats mine water or underground water close to the most highly active section of most of mesophilic methanogens thus
Processing can increase the density of microorganism and enhancing microbial reaction activity in water；
Beneficial effects of the present invention:
(1) biomass garbage is obtained into green, adequately recycling and utilized, economized on resources, reduce waste, improve resource
Utilization rate；
(2) ability of larger molecular organics in microorganism decomposition coal and rubbish can be enhanced, enhancing microorganism methane phase
Ability；
(3) various geological problems and ecological environment problem that the useless dead zone of abandoned mine may cause are solved, while producing energy
Source methane can effectively realize the secondary recycle value of abandoned mine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of simple screening machine.
Fig. 2 is the structural schematic diagram of the rubbish from cooking block of compacting.
Fig. 3 is the structural schematic diagram of the agriculture and forestry executing garbage of compacting.
Fig. 4 is the structural schematic diagram of cube reaction chamber.
Fig. 5 is the specific filling effect schematic diagram of coal road.
In figure: 1. feed inlets；2. conveyer；3. fixed magnet；4. drum screen；5. 50-200mm grid；6. 13-
50mm grid；7. 13mm or less grid；8. magazine；9. ventilation blower；10. roof；11. rubbish slurries；12. tunnel coal wall；
13. seat earth；14. coal dust；15. composite membrane；16. fine sand；17. lump coal；18. executing garbage；19. hermatic door；20. valve；21.
Logical slurry (pumping) pipeline.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiment.
Such as 1070 assistant conveyance main entry of Tashan Mountain coal mine, if following because of the deeper coal seam of digging or because of coal mine waste, this should
Tunnel can be used as filling and producing the main place of the energy.This tunnel overall length 2403m, wide 6.6m, high 3.97m.
The method for filling the coal mine waste mine using rubbish and producing biomass energy, comprising the following steps:
(1) municipal refuse is screened:
Municipal refuse is first passed through artificial roughing to sort bulk object, surplus materials is then put into simple screening
Machine (see figure 1) is screened.
The course of work of the simple screening machine are as follows: rubbish is poured slowly on a small quantity on the belt of conveyer 2 by feed inlet 1,
The speed of service for controlling belt is 0.2m/s, and conveyer belt length is 3m, in the cloth at belt horizontal end 1m, high 15cm
The fixed magnet 3 that a length is 2m is set, the magnetisable material in rubbish is attracted by magnetic force and deviates running track, thus with non-magnetic
Property substance separates, and magnetisable material is fallen into magazine, in namagnetic substance descent, can encounter the ascending air of ventilation blower into
Row selection by winnowing, sensitive paper piece, polybag and the separation of the leaf of drying light materials, the material of weight enter rotary screen 4；Rotary screen is set as inclining
Oblique 3 °~5 °, there are 13mm or less grid 7,13mm~50mm grid 6 and 50mm~200mm grid 5 in roller the inside, and grid is to fix
Installation, such material enter in roller after with roller rotation, the material of different size passes through the screening grid of different size
Separation: the grid first less than 13mm filters the little particles such as soil, and then 13mm~50mm screens grid for vegetables, pericarp etc.
Rubbish from cooking is separated, and the large piece articles such as last residue bottle, packing box can be screened grid separation by 50mm~200mm, more
Big material is directly detached from from bottom end；Biomass rubbish as rubbish from cooking is isolated by this series comprehensive screening technology
Rubbish；
In order to make rotary screen not be blocked, the revolving speed of rotary screen is set as 5~6r/min.
(2) agriculture, forestry rubbish are crushed to partial size with crusher is 10cm or less；
(3) rubbish from cooking and agriculture, forestry rubbish are separately compacted with compacting machine: rubbish from cooking is compacted into cube block
(such as Fig. 2)；Agriculture, forestry rubbish in 5:1~10:1 ratio with the spiral compacting machine of hot type be compacted into middle part it is reeded rectangular
Body block (such as Fig. 3)；
Size (such as Fig. 2) after the rubbish from cooking compacting is length × width × height=0.4m × 0.4m × 0.4m, the agricultural
Size (such as Fig. 3) after industry garbage truck is length × width × height=1m × 1m × 0.5m, and the size of central slot is length × width × height
=0.5m×0.5m×0.25m；
(4) hydrogen-producing acetogens bacterium colony and methanogen bacterium are cultivated respectively using Modern microbiological separation and pure culture technigne
It falls；Slurries are made using biomass liquefying technology in broken rubbish.Finally hydrogen-producing acetogens bacterium colony is accessed in slurries and is sent out
Ferment forms and is rich in acetic acid and the higher rubbish slurries of this decomposer degree of enrichment；
(5) the rubbish from cooking block of compacting is put into the groove of agriculture and forestry executing garbage, adds and prepares above executing garbage
Methane phase bacterium solution, then covered with agriculture and forestry executing garbage, be closed recess, form a confined reaction room 4, enrichment culture produces first
Alkane bacterium；The cube reaction chamber of (such as Fig. 4) length × width × height=1m × 1m × 1m is formed after step (5) lid closes.
(6) as shown in figure 5, selection coal body saves complete Abandoned Tunnel, by the reparation of surrounding loophole, filling, spray in tunnel
Slurry, repairing is smooth, crams the connector with other tunnels, removes machinery equipment and cable of abandonment etc., and formation one complete close
The long and narrow place closed.The coal road of segmentation selection 200m or so, layer overlay 10cm ~ 15cm coal dust or pulverized limestone in tunnel bottom surface,
2 layers of impermeable composite membrane (200mm) are being spread above again, then are spreading one layer of 15cm ~ 20cm fine sand above, guarantee that composite membrane is not pressed
It breaks, then layer overlay coal 20cm ~ 30cm；
(7) the compacting executing garbage in step (5) is moved in into layered putting in discarded roadway using car-haul device, will pressed
1m × 1m × 1m cube executing garbage after contracting is stacked, and width direction can place 4 pieces, one layer is then repaved on executing garbage
The lump coal of 30cm thickness connects and heap garbage block again, it is contemplated that height residue about 1m can also be laid with the block of thick 50cm or so
Coal；
(8) it ferments in tunnel for the ease of later period microorganism, carries out the pumping work of 10h~15h to tunnel with aspiration pump
Make；
(9) using the enrichment of original water conservancy system, culture, concentration mine water, 35 DEG C or so are then heated to；
(10) the rubbish slurries being then made by pipeline injection step (4)；
(11) after slurries sedimentation is gone down, the water of step (9) heating is injected in tunnel by pipeline；
Valve is equipped on the pipeline that every kind of raw material is connect with tunnel, it only need to be by the pipe of added raw material during injection raw material
Road valve is opened；
(12) all valves of closing close hermatic door, one sealing device of tunnel formation filled in this way, in tunnel completely
It is closed, O is consumed using the decomposition reaction of aerobe 10d~15d early period2, conducive to the anaerobic reaction of later period anaerobe, i.e.,
The larger molecular organics decomposed in rubbish and coal seam finally generate methane by some column metabolic responses；
(13) it after the reaction of 30d~45d, produces gas and is in stationary phase.Gas is detected using methane Concentration Measurement device
After concentration reaches 70%~80%, it can first extract 1L gas and carry out output gas analysis, at this moment the gas componant of output is mainly CO2
And CH4(accounting for 90% or more altogether), there are also H2 S、H2, CO(account for 5%~7% altogether) and other hydrocarbon gas (3% or less)；It is evacuated,
These last gases pass through Gas-treating processes, more mature at present and stable pressure WATER-WASHING METHOD technique: according to CH4And CO2、
H2S different solubility in water and realize that gas separates, under conditions of whole process temperature change is little, CH4In water
Solubility with pressure variation less, and CO2And H2The solubility of S at elevated pressures in water is big, and CO2And H2 S
It is released at low pressures because solubility in water is small, to realize to CO2And H2The separation of S gas component,
Complete purification；Then residual gas is dried (methane concentration at this time can be 90% or so) with desiccant, then with having
Solvent absorbs, and the methane gas of high concentration finally can be obtained using pressurization；
(14) client is transported to finally by canned or pipeline transportation to utilize.
Claims (5)
1. a kind of method for filling discarded roadway using rubbish and producing biomass energy, it is characterised in that: the following steps are included:
(1) municipal refuse is screened:
Municipal refuse is first passed through artificial roughing to sort bulk object, then by surplus materials be put into simple screening machine into
Row screening: conveyer belt persistently falls down charging stabilization, and then blanking passes through fixed magnet for metallics magnetic separation, following selection by winnowing
Light-duty substance is separated with heavy substance, last material enters rotary screen；There are 13mm or less grid, 13mm~50mm inside roller
Grid and 50mm~200mm grid isolate biomass garbage as rubbish from cooking by such Integrated Selection technique；
(2) agriculture, forestry rubbish are crushed to partial size with crusher is 10cm or less；
(3) rubbish from cooking and agriculture, forestry rubbish are separately compacted with compacting machine: rubbish from cooking is compacted into cube block；Agriculture, woods
Industry rubbish is compacted into the reeded cuboid block in middle part with the spiral compacting machine of hot type in 5:1~10:1 ratio；
Size after the rubbish from cooking compacting is length × width × height=0.4m × 0.4m × 0.4m, the agriculture, forestry garbage truck
Size afterwards is length × width × height=1m × 1m × 0.5m, the size of central slot be length × width × height=0.5m × 0.5m ×
0.25m；
(4) hydrogen-producing acetogens bacterium colony and methanogen bacterium colony are cultivated respectively using Modern microbiological separation and pure culture technigne；
Slurries are made using biomass liquefying technology in broken rubbish；Finally hydrogen-producing acetogens bacterium colony is accessed in slurries and is fermented,
It is formed and is rich in acetic acid and the higher rubbish slurries of this decomposer degree of enrichment；
(5) the rubbish from cooking block of compacting is put into the groove of agriculture and forestry executing garbage, prepared production is added above executing garbage
Methane bacterium solution, then covered with agriculture and forestry executing garbage, it is closed recess, lid forms a length × width × height=1m × 1m × 1m after closing
Cube reaction chamber, enrichment culture methanogen；
(6) selection coal body saves complete Abandoned Tunnel, and by the reparation of surrounding loophole, filling, whitewashing, repairing is smooth, keeps closed
Property is good；
(7) the compacting executing garbage in step (5) is moved in discarded roadway using car-haul device and is layered, misplaces, is spaced and puts
It puts, interlamellar spacing is 10cm~15cm, wrong away from being to be compacted the half of executing garbage side length, and insert block between executing garbage with spacing
Coal puts the number of plies depending on roadway height；
(8) it ferments in tunnel for the ease of later period microorganism, carries out the pumping work of 10h~15h to tunnel with aspiration pump；
(9) underground water or mine water are subjected to enrichment culture, are concentrated, are heated to 35 DEG C；
(10) the rubbish slurries of step (4) are injected in discarded roadway by pipeline；
(11) after slurries sedimentation is gone down, the water of step (9) heating is injected in roadway by pipeline；
(12) all valves are closed, hermatic door is closed, is completely closed in such tunnel, utilizes aerobe 10d~15d's early period
Decomposition reaction consumes O2, conducive to the anaerobic reaction of later period anaerobe, that is, the larger molecular organics in rubbish and coal seam are decomposed,
By a series of metabolic responses, methane is finally generated；
(13) it after the reaction of 30d~45d, produces gas and is in stationary phase；Gas density is detected using methane Concentration Measurement device
After reaching 70%~80%, first extracts 1L gas and carry out output gas analysis, at this moment the gas componant of output is mainly CO2And CH4,
There are also H2 S、H2, CO and other hydrocarbon gas；
(14) client is transported to finally by canned or pipeline transportation to utilize.
2. the method according to claim 1 for filling abandoned mine using rubbish and producing biomass energy, feature exist
In: the course of work of the simple screening machine are as follows: rubbish is poured slowly on a small quantity on the belt of conveyer by feed inlet, controls belt
The speed of service be 0.2m/s, conveyer belt length be 3m, apart from belt horizontal end 1m, high 15 ㎝ at arrangement one length
For the fixed magnet of 2m, the magnetisable material in rubbish is attracted by magnetic force and deviates running track, thus with namagnetic substance point
It leaving, magnetisable material is fallen into magazine, and in namagnetic substance descent, the ascending air that can encounter ventilation blower carries out selection by winnowing,
Light materials are separated, the material of weight enters rotary screen；Rotary screen is set as 3 °~5 ° of inclination, and the grid in roller is fixed peace
Dress, such material enter in roller after with roller rotation, the screening grid point that the material of different size passes through different size
From；In order to make rotary screen not be blocked, the revolving speed of rotary screen is set as 5~6r/min.
3. the method according to claim 1 for filling abandoned mine using rubbish and producing biomass energy, feature exist
In: the Abandoned Tunnel is filled in a manner of sublevel fill stoping, is taken and is filled every 200m.
4. the method according to claim 1 for filling abandoned mine using rubbish and producing biomass energy, feature exist
In: in the step (6), when being repaired to Abandoned Tunnel, first ground is repaired smooth, then layer overlay is with a thickness of 10cm
~15cm coal dust or ash content, then above paving two layers of thickness be 200mm impermeable composite membrane, then above spread one layer of 15cm~
20cm fine sand, the then residual coal of layer overlay 20cm~30cm.
5. the method according to claim 1 for filling abandoned mine using rubbish and producing biomass energy, feature exist
In: in the step (13), the gas of output is handled, wherein CO2And CH490% or more, H is accounted for altogether2 S、H2, CO accounts for altogether
5%~7%, other hydrocarbon gas account for 3% or less；According to CH4And CO2、H2S different solubility in water and realize gas point
From, under conditions of whole process temperature change is little, CH4Solubility with pressure variation in water is little, and CO2And H2S
Solubility at elevated pressures in water is big, and CO2And H2S is discharged because solubility in water is small at low pressures
Out, to realize to CO2And H2Purification is completed in the separation of S gas component；Then with desiccant by residual gas into
Row drying, methane concentration at this time are absorbed up to 90% or more, then with organic solvent, and high concentration finally can be obtained using pressurization
Methane gas.
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| CN107177497B (en) * | 2017-08-01 | 2023-11-03 | 河南理工大学 | Mine goaf filling straw biological gas production system and gas production process thereof |
| CN107630704B (en) * | 2017-08-10 | 2019-12-10 | 中国铁建重工集团股份有限公司 | Slag discharging system and slag discharging sorting method of hard rock heading machine |
| CN107619840A (en) * | 2017-11-06 | 2018-01-23 | 河南理工大学 | Abandoned mine injects biomass with losing coal cometabolism methane phase technique |
| CN109317266A (en) * | 2018-10-19 | 2019-02-12 | 北京嘉博文生物科技有限公司 | A kind of separation of kitchen garbage bone, at powder equipment |
| CN111909844B (en) * | 2020-09-03 | 2023-06-20 | 安徽理工大学 | Waste mine biogas fermentation fertilizer making system and application method thereof |
| CN114165281A (en) * | 2021-12-10 | 2022-03-11 | 西安科技大学 | Method for filling biomass solid/liquid energy-producing source gas in underground space of mine |
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| CN1478610A (en) * | 2002-08-28 | 2004-03-03 | 中国科学院武汉岩土力学研究所 | Method of refill spent mining field using city solid garbage |
| CN102517368A (en) * | 2011-12-15 | 2012-06-27 | 河南理工大学 | Method for preparing biogas by degrading coal with microorganisms |
| CN102559772A (en) * | 2012-02-16 | 2012-07-11 | 北京科技大学 | Method for increasing production of coal bed methane by using exogenous microorganisms |
| CN105063093A (en) * | 2015-08-07 | 2015-11-18 | 河南理工大学 | Method for preparation of coalbed methane from microorganisms |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1478610A (en) * | 2002-08-28 | 2004-03-03 | 中国科学院武汉岩土力学研究所 | Method of refill spent mining field using city solid garbage |
| CN102517368A (en) * | 2011-12-15 | 2012-06-27 | 河南理工大学 | Method for preparing biogas by degrading coal with microorganisms |
| CN102559772A (en) * | 2012-02-16 | 2012-07-11 | 北京科技大学 | Method for increasing production of coal bed methane by using exogenous microorganisms |
| CN105063093A (en) * | 2015-08-07 | 2015-11-18 | 河南理工大学 | Method for preparation of coalbed methane from microorganisms |
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