CN103912891B - The mixed ventilation air gas of mash gas extraction ginseng participates in coal-fired boiler combustion system - Google Patents
The mixed ventilation air gas of mash gas extraction ginseng participates in coal-fired boiler combustion system Download PDFInfo
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- CN103912891B CN103912891B CN201410117814.3A CN201410117814A CN103912891B CN 103912891 B CN103912891 B CN 103912891B CN 201410117814 A CN201410117814 A CN 201410117814A CN 103912891 B CN103912891 B CN 103912891B
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- 238000000605 extraction Methods 0.000 title claims abstract description 99
- 238000009423 ventilation Methods 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 23
- 241000208340 Araliaceae Species 0.000 title claims abstract description 9
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 title claims abstract description 9
- 235000003140 Panax quinquefolius Nutrition 0.000 title claims abstract description 9
- 235000008434 ginseng Nutrition 0.000 title claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 230000008676 import Effects 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 230000000977 initiatory effect Effects 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 169
- 239000003245 coal Substances 0.000 description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000005065 mining Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 244000086443 Craterellus fallax Species 0.000 description 1
- 235000007926 Craterellus fallax Nutrition 0.000 description 1
- 241000269793 Cryothenia peninsulae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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Abstract
The present invention provides a kind of mixed ventilation air gas of mash gas extraction ginseng to participate in coal-fired boiler combustion system, in mine return air vertical, the weary distinguished and admirable of generation enters the air-introduced machine near coal-burning power plant along weary airflow channel under the pumping of ventilation blower, and under the guiding of air-introduced machine, enter inlet air of boiler passage, mash gas extraction passage imports weary airflow channel, initiating terminal at mash gas extraction passage arranges mash gas extraction pump, mash gas extraction is pumped into mash gas extraction passage by mash gas extraction pump, mash gas extraction imports weary airflow channel along mash gas extraction passage, described air-introduced machine is led to after mixing with weary distinguished and admirable in weary airflow channel.The present invention participates in boiler combustion after being mixed in ventilation air gas by mash gas extraction or being diluted to safe concentration, overcome the shortcoming that ventilation air gas concentration is generally not enough, utilize the gas that part low concentration mash gas extraction and the gas Gas Generator Set etc. being difficult to be utilized are more than needed the most to greatest extent, improve boiler of power plant combustion conditions, significantly improve economic benefit and social benefit.
Description
Technical field
The present invention relates to a kind of mixed ventilation air gas of mash gas extraction ginseng and participate in coal-fired boiler combustion system.
Background technology
In progress of coal mining, a large amount of methane gas contained in coal seam often pour in digging
Space.For guaranteeing exploit safety and administer gas, need to use mine ventilation to get rid of mine gas.
So, substantial amounts of gas will waste the valuable gas energy along with mine ventilation row is to air
Meanwhile, will also result in serious atmospheric pollution.
Particularly, coal resources in China relatively horn of plenty, but overwhelming majority coalfield belongs to high methane coalfield,
Coal-bed gas breathability is poor.According to current technology, mine gas extraction utilization rate is relatively low.Cause
This, overwhelming majority gas is drained in air in mine ventilation mode.And quite a few mine is weary
Gas bearing capacity in distinguished and admirable between 0.5%-0.75%, weary distinguished and admirable in containing a large amount of gas.
It addition, in mine, for administering gas exceeding limit, the most often take gas pumping measure.Watt
This extraction mainly include this coal seam take out in advance, adjacent layer mode, goaf mode, for solve coal-getter
Make face especially fully-mechanized mining working local gas overrun issues (such as Air return corner gas exceeding limit), mined out
District's mash gas extraction, because its quantities is less, low cost, solves Air return corner gas exceeding limit effect obvious,
Adapt to the needs that quickly propel of mine comprehensive mining machinery and used in a large number by mine.Goaf extraction
Gas is due to gas density low (major part is between 3%-8%), and this part gas is difficult to be utilized (one
For as, low-concentration gas power generation requires that gas optium concentration is about 9.5%, the gas of less than 8%
Generating capacity will be the least, can not maintain unit operation when gas density is less than 6%), typically all quilt
It is directly discharged in air.
And in reality, easily burn due to gas, if gas is made to participate in combustion when coal burning
Burning, will significantly improve coal burning performance, gas combustion can also produce amount of heat, is saving
While fire coal, it is also possible to reduce the gas amount to airborne release.This will produce the most economic profit
Benefit.Therefore, it is necessary to mine mash gas extraction and ventilation air gas are participated in combustion by design one safely
The system and device of coal burning boiler burning, to realize mash gas extraction and weary distinguished and admirable middle gas participation combustion power generation.
Mine air-lack stream gas of the prior art participates in the system of steam power plant's coal-fired boiler combustion, bag
Include weary airflow channel, air quantity regulation mouth, methane explosion prevention system.Weary airflow channel side connects mine
Chief ventilators air outlet, opposite side connects steam power plant's air-introduced machine entrance.The position of air quantity regulation mouth
Determine according to mine air-lack amount and coal-burning boiler air quantity, if weary air quantity is more than steam power plant's air quantity,
Then air quantity regulation mouth is located near main fan in mine air outlet；As weary air quantity is used less than steam power plant
Air quantity, then air quantity regulation mouth is located near steam power plant's air-introduced machine air intake vent.In this system, ore deposit
The weary wind of well is after main fan in mine extracts ground out, and the weary airflow channel arranged through ground flows into ore deposit
The air-introduced machine of coal-burning power plant near well head, then sent into coal-fired boiler in power plant by air-introduced machine.
The defect of above-mentioned existing scheme is:
1, said system uses weary distinguished and admirable participation coal-fired boiler combustion, and weary distinguished and admirable gas density is less,
Effect of coal saving is inconspicuous.Recently as country and coal mining enterprise's attention further to mine safety,
Gas preventing and control work has almost become the cardinal task of Safety of Coal Mine Production, and mine ventilation capacity constantly adds
By force, national regulation mine total return air gas density is less than 0.75%, and exploiting field return airway gas density is not
More than 1%, and some the strictest coal mining enterprises even require that gas density is lower and (do not surpass
Cross 0.8%), so, in mine total return air stream, gas density is difficult to more than 0.5%, and ventilation air gas is joined
With the space that its concentration during burning still has lifting.
2, the part gas of extraction due to concentration relatively low and can not be applied by Gas Generator Set, cause extraction
Most of gas or all gas have no idea to utilize, can only directly be emptied.Coal mine gas is taken out
Adopt pumping plant or mash gas extraction emptying system be generally located near mine return air well head, greatly from
The low concentration gas of less than the 8% of goaf extraction or the goaf gas of extraction, due to when majority
Between section concentration less than 8% and all emptied.
3, considerable colliery pit-head power station is Gangue Power Plant, owing to ature of coal is bad, and power plant soot machine
Group runs more difficulty, and the cleaned coal ratio of blending is quite big, and currently existing scheme is to improving boiler combustion
Burning situation is not carried out maximizing.
Summary of the invention
The present invention provides a kind of mixed ventilation air gas of mash gas extraction ginseng to participate in coal-fired boiler combustion system, purport
Gas utilization rate when improving boiler of power plant burning to greatest extent, and increase economic efficiency and society
Can benefit.
Specifically, the present invention provides a kind of mixed ventilation air gas of mash gas extraction ginseng to participate in coal-burning boiler combustion
Burning system, wherein, in mine return air vertical produce weary distinguished and admirable under the pumping of ventilation blower along weary
Airflow channel enters the air-introduced machine near coal-burning power plant, and entrance boiler enters under the guiding of air-introduced machine
Wind passage, mash gas extraction passage imports weary airflow channel, and the initiating terminal at mash gas extraction passage is arranged
Mash gas extraction pump, mash gas extraction is sent into mash gas extraction passage by mash gas extraction pump, mash gas extraction along
Mash gas extraction passage imports weary airflow channel, leads to institute after mixing with weary distinguished and admirable in weary airflow channel
State air-introduced machine.
Preferably, the intersection between mash gas extraction passage and weary airflow channel arranges gas diffusion
Device, distinguished and admirable mixs homogeneously with weary for mash gas extraction.
It is highly preferred that described gas disperser uses many discharge mouths of pipe to be evenly arranged in passage section
Mode.
It is highly preferred that arrange fence near described gas disperser.
Preferably, mash gas extraction passage and/or weary airflow channel arrange gas monitor probe, with
Detection gas density, and Monitoring Data is uploaded in monitoring system computer.
Preferably, described mash gas extraction passage arranges electric valve for pipeline door, according to mixing after gas
Concentration is automatically adjusted valve aperture, keeps mixing after gas concentration to be in special ratios, when after mixing
When gas density is less than special ratios, automatic intensifying valve aperture is until standard-sized sheet, when mixing after gas
When concentration is more than described special ratios, reduce valve opening to reduce gas density.
Preferably, mash gas extraction passage also sets up mash gas extraction regulation mouth, with by unnecessary watt
This is discharged smoothly.
It is highly preferred that regulate mouth inlet air flow side in mash gas extraction delivery side of pump side and gas to install water
Blockade firearm, to guarantee the safety of mash gas extraction passage and fire-proof and explosion-proof.
The present invention participates in boiler combustion after being mixed in ventilation air gas by mash gas extraction or being diluted to safe concentration
Burn, overcome the shortcoming that ventilation air gas concentration is generally not enough, make use of to greatest extent simultaneously be difficult to by
The gas that the part low concentration mash gas extraction utilized and gas Gas Generator Set etc. are more than needed, improves
Power plant's (especially Gangue Power Plant) Combustion Operation of Boilers, increases gangue utilization degree, significantly carries
High economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 illustrates that the mixed ventilation air gas of mash gas extraction ginseng according to the present invention participates in coal-fired boiler combustion
System.
Detailed description of the invention
Hereinafter, identical reference refers to identical element.
The present invention is considered as, by pipeline, the gas of extraction is mixed into what participation thermal power plant boiler burnt
Mine air-lack mash gas is distinguished and admirable, and logical a participation is burnt.So, the same of mine air-lack stream is being made full use of
Time, also the mash gas extraction of high concentration it is diluted to below safety value and is used, improve gas
Utilization rate, improves boiler of power plant fired coal combustion performance.
Fig. 1 illustrates that the mixed ventilation air gas of mash gas extraction ginseng according to the present invention participates in coal-fired boiler combustion
System.As it is shown in figure 1, weary distinguished and admirable the pumping at ventilation blower 2 produced in mine return air vertical 1
Under enter the air-introduced machine 8 near coal-burning power plant along weary airflow channel, and under the guiding of air-introduced machine 8
Enter thermal power plant boiler air intake passage 10.Weary airflow channel can arrange air quantity regulation mouth 4, use
In regulating weary distinguished and admirable air quantity.Especially, when weary distinguished and admirable air quantity is more than steam power plant's air quantity, air quantity
Regulation mouth 4 is located near ventilation blower 2；When weary distinguished and admirable air quantity is less than steam power plant's air quantity, air quantity
Regulation mouth 4 is located near air-introduced machine 8.
The element that wherein in Fig. 1, reference 6 represents is demister, reference 9 element
Part is explosion proof door.
It addition, as it is shown in figure 1, another air channel mash gas extraction passage also imports weary airflow channel.
Initiating terminal at mash gas extraction passage arranges mash gas extraction pump 11, and extraction is arrived by mash gas extraction pump 11
Gas is sent into mash gas extraction passage, and mash gas extraction imports weary airflow channel along mash gas extraction passage,
The air-introduced machine 8 near coal-burning power plant is led to after mixing with weary distinguished and admirable in weary airflow channel.
Preferably, gas can be set the intersection between mash gas extraction passage and weary airflow channel
Disperser 15, such as, can use the mode that many discharge mouths of pipe are evenly arranged in passage section, as
The forms such as four mouths of pipe, five mouths of pipe or nine mouths of pipe, are beneficial to mash gas extraction and distinguished and admirable mix homogeneously with weary.
Simultaneously, it may be considered that near gas disperser 15, (such as weather side 5 meters is to downwind side 30
In the range of meter) fence 18,19 is set, to forbid that personnel enter, it is ensured that Field Force's safety.
It addition, in order to effectively monitor Gas Flow situation in pipeline, it is also possible at mash gas extraction passage
And/or weary airflow channel arranges gas monitor probe 16,17, with the total return air of monitoring mine, extraction
Gas and mixing after gas concentration.Probe 17 may be provided at the downwind side fence 18 of disperser 15
Place, upload the data in monitoring system computer, monitoring system can gather simultaneously mine total return air and
Gas density in extraction pipeline.
Also can arrange electric valve for pipeline door 14 in mash gas extraction passage, this valve 14 is automatically control
Motor regulated valve, is automatically adjusted valve aperture according to mixing after gas concentration, keeps after mixing watt
This concentration is in special ratios (such as 0.75% or 1%, preferably 1%).When mixing after gas concentration is low
When special ratios (such as, 1%), automatic intensifying valve aperture is until standard-sized sheet, when after mixing watt
When this concentration is more than described special ratios, reduce valve opening to reduce gas density.When mine is total
When in return air, gas density exceedes another special ratios (being enough to be considered as Mine Gas Gushing abnormal),
Automatic-closing valve.Electrically operated valve 14 can have manual mode, to ensure in abnormal cases can
Manual-lock.
In weary distinguished and admirable explosion protection system, when weary distinguished and admirable middle gas density is more than 1%, monitoring probe refers to
Showing and automatically cut off power plant's fan power, preventing gas accident, weary wind can all be adjusted by air quantity
Joint mouth is discharged, and opens the air door 7 near air-introduced machine as early as possible, to reduce flowing resistance, keeps mine
Normal ventilation.
Mash gas extraction regulation mouth 13 also can be set in mash gas extraction passage, with by suitable for unnecessary gas
Profit is discharged.For ensureing that gas can preferentially fully enter weary airflow channel, gas disperser 15 should
There are enough negative pressure (this negative pressure is generally provided) by steam power plant's air-introduced machine, by negative pressure by pipeline
In gas suction passage, blast regulation facility can be set if desired in weary airflow channel, such as, exist
At the fence of gas disperser 15 weather side, damper 3 is set, to ensure negative pressure.
Additionally, in order to effectively empty water accumulation of pipeline, it is also possible to arrange on mash gas extraction passage and take out
Mash gas threeway exhaust-valve 12.When electrically operated valve 14 standard-sized sheet in mash gas extraction passage, in extraction
Should be negative pressure in gas threeway exhaust-valve 12, negative pressure value may generally be about 50Pa.
Preferably, for guaranteeing mash gas extraction channel security and fire-proof and explosion-proof, can be at mash gas extraction pump
Water seal fire arrestor 20,21 is installed in the outlet side of 11 and gas regulation mouth 13 inlet air flow side.Simultaneously
It is also conceivable to equidistantly to install along distance sprayer unit 5 on pipeline, gas is carried out mist and send anti-
Quick-fried.The installation of water seal fire arrestor should be as far as possible near entrance or outlet, and so, mash gas extraction regulates
The installation site of mouth 13 and electrically operated valve 14 will be against respective channel, and concrete installation site is with convenient
Install, operate and safeguard and be advisable.
It is easy to owing to mash gas extraction flow is less carry with pipeline, when return air pit shaft is apart from steam power plant
Farther out or due to orographic condition limit cannot construct carry ventilation air gas time, can individually carry extraction
Gas, near steam power plant's air-introduced machine, is further added by one section of air-supply passage subsequently to dilute mash gas extraction.
When the low concentration gas of mine extraction or high concentration gas reach value, the most all use
Gas Generator Set generates electricity, and for improving Gas Generator Set efficiency and reducing unit number of units, separate unit combustion gas is sent out
Motor installed capacity has the trend of increase at present.Due to mine gas emission rate non-constant value, this
The gas amount of sample extraction is typically greater than the total utilization of unit, generally higher than the 15% of the total utilization of unit
Below the most, directly emptying is bled off by unnecessary gas, wastes mass energy.The most permissible
Pipeline is utilized to be transported in weary airflow channel mix by this part gas, to realize gas
Make full use of.In this conveyance conduit, it is possible to electrically operated valve is set and is adjusted.
Generally, the gas of extraction is mixed into participation thermal power plant boiler by pipeline and burns by the present invention
Mine air-lack stream in, one logical participates in burning, is effectively improved gas utilization rate, greatly improves
Boiler of power plant fired coal combustion performance is especially big to Gangue Power Plant meaning.Meanwhile, by monitoring
Gas density, mash gas extraction concentration in system monitoring mixing after gas concentration, mine total return air stream,
In mash gas extraction transfer pipeline, especially install motor regulated valve, monitoring system according to monitoring watt
This concentration, carries out valve opening regulation to electrically operated valve, it is ensured that gas is able to the most automatically
Change greatly utilization, and when gas effusion intensity, be automatically switched off mash gas extraction conveying valve, it is achieved take out
System-wide the automatically controlling of mash gas conveying.
Especially, boiler is participated in after being mixed in ventilation air gas by mash gas extraction or be diluted to safe concentration
Burning, overcomes the shortcoming that ventilation air gas concentration is generally not enough, make use of to greatest extent simultaneously and is difficult to
The gas that the part low concentration mash gas extraction being utilized and gas Gas Generator Set etc. are more than needed, improves
Power plant (especially Gangue Power Plant) Combustion Operation of Boilers, increases gangue utilization degree, significantly
Improve economic benefit and social benefit.
On those skilled in the art will also be appreciated that protection scope of the present invention is not limited in
Stating embodiment, all equivalents to the present invention all fall within the scope of the present invention.
Claims (5)
1. the mixed ventilation air gas of mash gas extraction ginseng participates in a coal-fired boiler combustion system, wherein, mine
Produce in return air shafts is weary distinguished and admirable coal-fired electric along the entrance of weary airflow channel under the pumping of ventilation blower
Air-introduced machine near factory, and under the guiding of air-introduced machine, enter inlet air of boiler passage, it is characterised in that:
Mash gas extraction passage imports weary airflow channel, and the initiating terminal at mash gas extraction passage arranges extraction
Gas pump, mash gas extraction is sent into mash gas extraction passage by mash gas extraction pump, and mash gas extraction is along extraction
Gas channel imports weary airflow channel, lead to after mixing with weary distinguished and admirable in weary airflow channel described in draw
Blower fan；
Described weary airflow channel is provided with air quantity regulation mouth, wherein, when weary distinguished and admirable air quantity is more than
During steam power plant's air quantity, described air quantity regulation mouth is located near the ventilation blower in described weary airflow channel；
When weary distinguished and admirable air quantity is less than steam power plant's air quantity, it is attached that described air quantity regulation mouth is located at described air-introduced machine
Closely；
Mash gas extraction regulation mouth is also set up, with by suitable for unnecessary gas in described mash gas extraction passage
Profit is discharged；
Intersection between mash gas extraction passage and weary airflow channel arranges gas disperser, uses
Distinguished and admirable mix homogeneously with weary in mash gas extraction；
Wherein, described gas disperser uses the side that many discharge mouths of pipe are evenly arranged in passage section
Formula.
System the most according to claim 1, it is characterised in that at described gas disperser
Near fence is set.
System the most according to claim 1, it is characterised in that mash gas extraction passage and/
Or weary airflow channel arranges gas monitor probe, to detect gas density, and by Monitoring Data
Pass in monitoring system computer.
System the most according to claim 1, it is characterised in that in described mash gas extraction passage
Electric valve for pipeline door is set, is automatically adjusted valve aperture according to mixing after gas concentration, keeps mixing
After gas concentration is in special ratios, when mixing after gas concentration less than special ratios, automatically adds
Big valve opening, until standard-sized sheet, when mixing after gas concentration more than described special ratios, reduces valve
Door aperture is to reduce gas density.
System the most according to claim 1, it is characterised in that at mash gas extraction delivery side of pump
Water seal fire arrestor is installed, to guarantee the peace of mash gas extraction passage in side and gas regulation mouth inlet air flow side
Complete and fire-proof and explosion-proof.
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| CN201410117814.3A CN103912891B (en) | 2014-03-26 | 2014-03-26 | The mixed ventilation air gas of mash gas extraction ginseng participates in coal-fired boiler combustion system |
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| CN201410117814.3A CN103912891B (en) | 2014-03-26 | 2014-03-26 | The mixed ventilation air gas of mash gas extraction ginseng participates in coal-fired boiler combustion system |
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| CN107143420A (en) * | 2017-05-09 | 2017-09-08 | 阮秀梅 | A kind of coal mine gas integrated application device |
| CN111648745A (en) * | 2020-05-21 | 2020-09-11 | 河南理工大学 | System for raising carbon dioxide concentration by extracting gas from mine with carbon dioxide outburst |
| CN113090319B (en) * | 2021-05-14 | 2022-06-10 | 重庆工程职业技术学院 | Automatic gas explosion-proof system and method for underground coal mine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592293A (en) * | 1983-11-14 | 1986-06-03 | Hitachi, Ltd. | Method of controlling an air heater of a coal-fired boiler |
| CN101505120A (en) * | 2009-03-06 | 2009-08-12 | 大连海事大学 | Mine ventilation counter flow oxidation thermo-electric generation system |
| CN201424957Y (en) * | 2009-05-15 | 2010-03-17 | 淄博柴油机总公司 | Coal bed methane-mixing intake system of ventilation air methane oxidation system |
| JP2010084962A (en) * | 2008-09-30 | 2010-04-15 | Hitachi Ltd | Coal fired power generation system |
| CN101769536A (en) * | 2008-12-31 | 2010-07-07 | 中国神华能源股份有限公司 | System for enabling mine ventilation gas to participate combustion of thermal power plant coal boiler |
| CN201810335U (en) * | 2010-10-14 | 2011-04-27 | 上海攀极投资有限公司 | High and low-concentration gas mixing device for coal mine gas |
| CN102278135A (en) * | 2011-08-23 | 2011-12-14 | 山东理工大学 | Vortex type extracted gas dilution mixer for coal mine |
| CN102367767A (en) * | 2011-10-24 | 2012-03-07 | 董联革 | Method for power generation by utilizing low-concentration gas or ventilation air methane (VAM) |
| CN102562131A (en) * | 2010-12-24 | 2012-07-11 | 上海攀极投资有限公司 | Coal mine gas comprehensive application system and application method thereof |
| CN103623723A (en) * | 2013-12-12 | 2014-03-12 | 中国矿业大学 | Self-absorption spiral-flow type coal mine pumped gas and ventilation air methane mixing device |
-
2014
- 2014-03-26 CN CN201410117814.3A patent/CN103912891B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592293A (en) * | 1983-11-14 | 1986-06-03 | Hitachi, Ltd. | Method of controlling an air heater of a coal-fired boiler |
| JP2010084962A (en) * | 2008-09-30 | 2010-04-15 | Hitachi Ltd | Coal fired power generation system |
| CN101769536A (en) * | 2008-12-31 | 2010-07-07 | 中国神华能源股份有限公司 | System for enabling mine ventilation gas to participate combustion of thermal power plant coal boiler |
| CN101505120A (en) * | 2009-03-06 | 2009-08-12 | 大连海事大学 | Mine ventilation counter flow oxidation thermo-electric generation system |
| CN201424957Y (en) * | 2009-05-15 | 2010-03-17 | 淄博柴油机总公司 | Coal bed methane-mixing intake system of ventilation air methane oxidation system |
| CN201810335U (en) * | 2010-10-14 | 2011-04-27 | 上海攀极投资有限公司 | High and low-concentration gas mixing device for coal mine gas |
| CN102562131A (en) * | 2010-12-24 | 2012-07-11 | 上海攀极投资有限公司 | Coal mine gas comprehensive application system and application method thereof |
| CN102278135A (en) * | 2011-08-23 | 2011-12-14 | 山东理工大学 | Vortex type extracted gas dilution mixer for coal mine |
| CN102367767A (en) * | 2011-10-24 | 2012-03-07 | 董联革 | Method for power generation by utilizing low-concentration gas or ventilation air methane (VAM) |
| CN103623723A (en) * | 2013-12-12 | 2014-03-12 | 中国矿业大学 | Self-absorption spiral-flow type coal mine pumped gas and ventilation air methane mixing device |
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