CN101240716A - Oxygen-containing mash gas concentration modifying device and uses thereof - Google Patents
Oxygen-containing mash gas concentration modifying device and uses thereof Download PDFInfo
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- CN101240716A CN101240716A CNA2008100654999A CN200810065499A CN101240716A CN 101240716 A CN101240716 A CN 101240716A CN A2008100654999 A CNA2008100654999 A CN A2008100654999A CN 200810065499 A CN200810065499 A CN 200810065499A CN 101240716 A CN101240716 A CN 101240716A
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Abstract
The present invention relates to an mixture gas preliminary separation device and uses thereof, especially relates to coal mining device for separating high concentration gas from light concentration emptying gas and uses thereof, small density gas will automatic separates with large density gas to forming top and bottom laminar arrangement by using the property that gas density is smaller than air density at the static or low speed state in certain spatial dimension, thereby the aim of thickening gas concentration is achieved. Energy consumption of the device is extremely low or has not, this can effectively separates out higher concentration gas from lower concentration gas containing air in coal mining process, so gas effective utilization is realized and environment pollution of gas is decreased.
Description
Technical field
The present invention relates to a kind of initial gross separation device and application thereof of mist, the device and the application thereof of isolating the higher concentration Device in Gas during particularly a kind of low concentration emptying that is widely used in coal mining draws out methane.
Background technology
Gas, custom is biogas, and formal name used at school is called methane, itself is a kind of high-quality clean energy resource, also is a kind of important chemical material, at occurring in nature very big reserves is arranged.The land buried depth of China is 31.46 tcms with shallow coal-bed gas stock number for 2000 meters, mainly is distributed in 24 provinces and regions, and areas such as Shanxi, Guizhou, Xinjiang, Shaanxi, Inner Mongol, Gansu, border, Yunnan, Guizhou Province, river, the two Hua Areas are the abundantest.To the end of the year 2004, verify gas reserves 1023 billion cubic meters successively.
National colliery mash gas extraction 23 billion cubic meters in 2005 utilize more than 900,000,000 cubic metre, utilization rate 42,6%; National colliery mash gas extraction 32.4 billion cubic meters in 2006 utilize 11.5 billion cubic meters, utilization rate 35.5%; Gas pumping 43 billion cubic meters in 2007,13.03 billion cubic meters, utilization rate 30.3%.National coal mine gas (coal bed gas) methane drainage and utilization project target in 2008: extraction amount 56 billion cubic meters, utilization 20 billion cubic meters.Wherein, coal mine gas extraction amount 48 billion cubic meters, utilization 15 billion cubic meters; Ground coal bed gas production capacity 22 billion cubic meters, extraction amount 8 billion cubic meters, utilization 5 billion cubic meters.By 2010, national coal mine gas extraction amount reached 100 billion cubic meters (wherein extraction 60 billion cubic meters in down-hole utilize 30 billion cubic meters).Current, about 1.65 ten thousand places of China's coal-mine all adopt mechanical ventilation, and draught capacity is at 3000m
3/ min to 10000m
3About/min, gas density must not surpass 0.75% in the total discharge air flow of safety regulations in coal mine regulation mine, and average draught capacity is pressed 5000m
3/ min, total return gas density is calculated by 0.3%, and then annual China's coal-mine wind gas-removing amount is 1283.04 billion cubic meters.A large amount of discharge of methane not only impacts Global climate change, has also lost a large amount of clean energy resourcies simultaneously, because relative density less (density is 0.716kg/m3, and atmospheric density is 1.29kg/m3) will rise to the atmosphere top.Cause the destruction of the outer ozone layer of atmosphere, cause serious problem of environmental pollution (greenhouse effect).Generally understanding is at present, because coal mine ventilation air methane content is extremely low, if separate purification, power consumption will be considerably beyond the energy that obtains methane, and is very uneconomical.The methane of this concentration can not directly burn in addition, so for a long time can only emptying, huge energy waste and environment pollution have been caused, certainly, also is no lack of the researcher, utilize technology only to consider to be used for auxiliary combustion or directly burn to low concentration gas both at home and abroad as main fuel, and set about studying light concentration mash gas safety conveying technology standard, formulate the coal mine gas emission control standard, and the weary wind oxidation unit of abundant ore deposit group's Wang Ying ore deposit north wind well carries out the colliery type approval test, already oxidised methane 10 ten thousand steres, 1200 tons of reducing emission of carbon dioxide.China's coal-mine draw out methane utilization rate low mainly be that the low concentration gas utilization is not enough, and one of principal element of restriction low concentration gas utilization is exactly a technology.If in method of thinking and technical breakthrough, this situation will not continue for a long time.The difficult problem that effective utilization of low concentration gas must solve is: the one, and how to make and realize that the low extremely low concentration gas that reaches changes to high concentration, the 2nd, must not consume energy in the transition process or few power consumption.
If no matter can be with the methane gas and the air separation of emptying in the colliery, and be recycled, be its social benefit, or economic benefit, all will be very considerable.
Summary of the invention
In order to solve in the colliery energy significant wastage that low concentration gas that ventilate discharging and extraction discharge causes and to the environment damage problem, the invention provides a kind of oxygen low concentration gas gas converting means that contains, consume energy extremely low or can not consume energy, effectively the low concentration from process of coal mining contains and isolates the higher concentration Device in Gas in the air Device in Gas, then realize effective utilization, reduce the pollution of gas environment to gas.The present invention also provides a kind of application of this device.
For realizing above-mentioned technical purpose, following technical scheme is adopted in this invention:
A kind of oxygen-containing mash gas concentration modifying device includes an airtight container, which is provided with low concentration oxygen-containing mash gas air inlet port, high concentration gas exhaust opening and air discharge ports.
Be further to realize above-mentioned technical purpose, described higher concentration gas exhaust opening is located at the tip position of seal container, and low concentration contains the bottom position that air Device in Gas air inlet port, air discharge ports are located at container.
As to improvement of the technical scheme, some deceleration baffle plates can be set in described closed container, quicken gas and contain separating between the oxygen air (layering).
Operating principle of the present invention is, utilizes the gas density character littler than atmospheric density, under static or lower-speed state, in the certain space scope, the gas that the little gas of density and density are big can separate automatically, forms layered distribution up and down, thereby realizes the purpose that gas density thickens.Specific practice is, the low concentration that the coal master is fanned the big speed of discharging or extraction contains air Device in Gas (source material gas) and is incorporated in the container of a sealing, reduce to the speed of mist minimum by the deceleration device that is provided with, and, realize gas and contain the oxygen air and will separate up and down through certain distance.What container upper end was assembled is the higher gas of concentration, and its concentration is very high, and this part gas extraction comes out, and can it be turned waste into wealth, effectively utilization by other mode otherwise processed (generating, civilian, liquefy, send into the gas transmission person in charge etc.); Other mist such as oxygen is then discharged by evacuation port.The outlet of high concentration gas gas designs according to a certain percentage with the area of the evacuation port of mist, can keep the flow that oxygen-containing mash gas (source gas) is collected, high concentration gas gas extracts continuous.
Principle of the present invention is fairly simple, but has very large practicality.
The concrete application of a kind of oxygen-containing mash gas concentration modifying device provided by the invention should comprise two groups at least, and is continuous with the flow that further maintenance oxygen-containing mash gas (source material gas) is collected, high concentration gas gas extracts.
Good effect of the present invention is: 1, fan discharging for the coal master or the low concentration of extraction contains the air methane gas, by automatic separation, the methane gas that can extract higher concentration out is for further utilizing, and the energy waste of having avoided the gas emptying to cause significantly reduces the pollution to environment simultaneously again; 2, this apparatus structure is simple, and manufacturing cost is lower, is convenient to extensive use.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further detailed.
Fig. 1 is the structural representation of oxygen-containing mash gas concentration modifying device of the present invention.
Fig. 2 is the fundamental diagram of oxygen-containing mash gas concentration modifying device of the present invention.
Fig. 3 is the structural representation of one embodiment of the invention.
Fig. 4 is the A-A sectional view among Fig. 3.
Fig. 5 is an application schematic diagram of the present invention.
Wherein label is:
1-seal container 10-oxygen-containing mash gas inlet,
11-high concentration gas exhaust opening, the 12-evacuation port,
13-deceleration baffle plate.
The specific embodiment
As shown in Figure 1, low concentration of the present invention contains the structural representation of air (oxygen) mash gas concentration modifying device, comprises the container of a seal, and a side is for containing air Device in Gas (source material gas) air inlet port, the top, middle part is the high concentration gas exhaust opening, and opposite side is an air discharge ports.
As shown in Figure 2, low concentration of the present invention contains the fundamental diagram of air mash gas concentration modifying device.Contain air Device in Gas (source material gas) in the container of sealing, separate through low speed, gas with contain the oxygen air and will separate up and down in other words, will go up lower leaf in the container.The upper strata is the gas of high concentration, and this part gas extraction comes out, and can it be turned waste into wealth by other mode otherwise processed (generating, civilian, liquefy, send into the gas transmission person in charge etc.), effectively utilizes; In order to make this device can continue running, the bottom mainly is an air, if gas is arranged, then its content is also very low, and this part gas can be discharged by evacuation port.
Among the embodiment shown in Figure 3, its left side low concentration contains air Device in Gas (source material gas) air inlet port 10, and it adopts horizontal intake method, and high concentration gas exhaust opening 11 is located at the top, middle part, and air evacuation port 12 is located at the right side.Fig. 4 is the A-A sectional view among Fig. 3.In closed container 1, be provided with deceleration baffle plate 13 as can be seen.
In order to keep the flow that oxygen-containing mash gas (source material gas) is collected, high concentration gas gas extracts continuous, the present invention in use should comprise two groups at least.Fig. 5 is that of the embodiment of the invention uses schematic diagram.
It more than is preferred forms of the present invention; according to content disclosed by the invention; some identical, replacement schemes that the those of ordinary skill of this area (utilizing gas density to realize the automatic separation of light concentration gas) can be expected apparently all should fall into protection scope of the present invention.
Claims (4)
1, a kind of oxygen-containing mash gas concentration modifying device is characterized in that, includes a seal container (1), which is provided with oxygen-containing mash gas air inlet port (10), high concentration gas exhaust opening (11) and air evacuation port (12).
2, oxygen-containing mash gas concentration modifying device according to claim 1, it is characterized in that: described high concentration gas exhaust opening (11) is located at the tip position of seal container (1), and oxygen-containing mash gas air inlet port (10), air evacuation port (12) are located at the bottom position of seal container (1).
3, require described oxygen-containing mash gas concentration modifying device according to claim 1 or 2, it is characterized in that: be provided with deceleration baffle plate (13) in the described seal container (11).
4, a kind of application of oxygen-containing mash gas concentration modifying device as claimed in claim 1 is characterized in that, should comprise two groups at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100654999A CN101240716A (en) | 2008-03-05 | 2008-03-05 | Oxygen-containing mash gas concentration modifying device and uses thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100654999A CN101240716A (en) | 2008-03-05 | 2008-03-05 | Oxygen-containing mash gas concentration modifying device and uses thereof |
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| Publication Number | Publication Date |
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| CN101240716A true CN101240716A (en) | 2008-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100654999A Pending CN101240716A (en) | 2008-03-05 | 2008-03-05 | Oxygen-containing mash gas concentration modifying device and uses thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174897A (en) * | 2011-03-14 | 2011-09-07 | 常熟理工学院 | Flat-board type ultralow concentration gas heat gathering device |
| CN107420125A (en) * | 2017-05-12 | 2017-12-01 | 李灿欣 | A kind of coal mine wind-lack gas separated collection system |
| CN110327773A (en) * | 2019-07-11 | 2019-10-15 | 江苏优珀斯材料科技有限公司 | A kind of corona machine ozone Collection utilization system |
| CN111117715A (en) * | 2020-01-08 | 2020-05-08 | 太原理工大学 | Device for separating gas in coal mine ventilation air methane and using method |
| CN112345527A (en) * | 2020-10-23 | 2021-02-09 | 济宁学院 | Coal pyrolysis waste gas detection equipment and working method |
-
2008
- 2008-03-05 CN CNA2008100654999A patent/CN101240716A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174897A (en) * | 2011-03-14 | 2011-09-07 | 常熟理工学院 | Flat-board type ultralow concentration gas heat gathering device |
| CN107420125A (en) * | 2017-05-12 | 2017-12-01 | 李灿欣 | A kind of coal mine wind-lack gas separated collection system |
| CN110327773A (en) * | 2019-07-11 | 2019-10-15 | 江苏优珀斯材料科技有限公司 | A kind of corona machine ozone Collection utilization system |
| CN111117715A (en) * | 2020-01-08 | 2020-05-08 | 太原理工大学 | Device for separating gas in coal mine ventilation air methane and using method |
| CN112345527A (en) * | 2020-10-23 | 2021-02-09 | 济宁学院 | Coal pyrolysis waste gas detection equipment and working method |
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Open date: 20080813 |