CN1546843A - Method for separating coal mine gas - Google Patents
Method for separating coal mine gas Download PDFInfo
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- CN1546843A CN1546843A CNA2003101102220A CN200310110222A CN1546843A CN 1546843 A CN1546843 A CN 1546843A CN A2003101102220 A CNA2003101102220 A CN A2003101102220A CN 200310110222 A CN200310110222 A CN 200310110222A CN 1546843 A CN1546843 A CN 1546843A
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- methane
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Abstract
The invention discloses a method for methane separation in coal mine and gob in one-time mining of ultra-high coal layer. The invention several methane gathering hole on top of the tunnel of coal face, and sets an assistant methane discharging tunnel with a small cross section based on the original wind inlet and outlet tunnel of ultra-high coal layer face. It distributes branch channels in the methane gathering hole, the inlet of the branch channel is set on top of the methane gathering hole, the outlet is connected to the methane tunnel, it sets a methane density inducting control device at the inlet of the branch channel. The merits of the invention are: separates the methane underground, uses the underground methane channels and gathering hole to gather, extract methane, avoids the resources waste; the invention is simple, easy to be realized.
Description
Technical field: the present invention relates to a kind of separation method of gas, relate in particular to that gas under a kind of mine gathers, separation method.
Background technology: gas, the formal name used at school methane gas, popular name biogas, be present in the underground mine, very big reserves are especially arranged in the colliery, also be the main hazard factor of coal production,, adopt for a long time simply to mine ventilation for pre-anti-gas explosion, dilution reduces the content of methane gas, make it outside mine is discharged in the tunnel, when gas bearing capacity is high in the coal seam, discharge by ventilating, technical have a great difficulty, simultaneously, because gas is a kind of very important fuel source, thereby simple emptying causes the waste of resource, particularly untimely when ventilating, when the gas density height arrives to a certain degree, be easy to occur the danger of gas explosion, cause a large amount of casualtiess and property loss.
Summary of the invention: to set off an explosion easily when the gas amount of gathering in the coal mine roadway reaches finite concentration and the discharging of ventilating causes the problem of energy waste in order solving, to the purpose of this invention is to provide a kind of coal mine gas separation method that can prevent lane gas from explosion and the gas separated and collected is utilized.
Technical scheme of the present invention realizes in the following manner:
A kind of coal mine gas separation method, it is that the gas that is free in the tunnel is assembled, and the gas pipeline that utilizes the down-hole to be provided with makes on the methane gas out well of gathering and utilizes, and its concrete job practices is as follows:
1), in coal-face air intake lane and top, return airway tunnel several holes, poly-natural pond are set, poly-hole, hole, natural pond height be 5-12 rice, the hole lay netted overcoat in case in the hole coal breakage or spoil hurt sb.'s feelings and alleviate distinguished and admirable impact stirring, the liter of being convenient to gas gathers;
2), in poly-hole, natural pond, lay subtube, the subtube air inlet port is located at poly-top, hole, natural pond, the gas outlet is communicated with the master of down-hole, gas pipeline dried, Zhi Zucheng, it is close-shaped that the subtube top is " T " word, air inlet port is positioned at pipe side wall in case junk stops up, the air inlet port place is provided with the gas density induction controller at the subtube top, and this control device is connected with the gas pipeline air exhausting device to reach at 30% o'clock and automatically start the gas pipeline electromagnetic valve with convenient gas accumulation concentration gas output is utilized.
Distance in the tunnel between poly-hole, natural pond and the hole is a 30-80 rice.
Distance in the tunnel between poly-hole, natural pond and the hole is that 50 meters of low level bogs, moor are 30 meters
Poly-hole, natural pond is the poly-hole, natural pond of tilting, and gradient is preferably 30-90 °, and trend is not limit.
Poly-hole, natural pond be located at the tunnel directly over be beneficial to gas and enter naturally.
Subtube and gas pipeline junction are established water tank and are listened the inspection duty and filter coal dust and flame proof, anti-backfire effect so that play, on the water tank air inlet pipe electromagnetic valve is set, electromagnetic valve be located at the gas density induction controller of being in charge of air inlet port place, top and be connected and controlled.
A kind of disposable method of separating goaf gas and utilizing that collects of super high seam that is applicable to, it is to accumulating in the gas channeling conduct in the goaf, the gas pipeline that utilizes the down-hole to be provided with makes on the methane gas out well of gathering and utilizes, its concrete job practices is: set up the auxiliary row of light section lane, natural pond on the basis of coal-face original air intake lane and return airway, its auxiliary row position, lane, natural pond is located at the return airway top, the top board below is parallel with the bottom return airway, and its horizontal projection drops between bottom return airway and the air intake lane near return airway.
The present invention is to be methane according to Main Ingredients and Appearance in the gas, methane is a kind of imflammable gas of colorless and odorless, density is 0.7168, it is 55.4% of air specific weight, thereby methane gas has the characteristics that make progress away, the present invention utilizes these characteristics to design just, methane gas is swarmed to the top, hole of vertical height 5-12 rice assemble.
Good effect of the present invention is:
1, to the methane gas under the mine, the guiding that utilizes gas drainage under suction pipeline that the down-hole is provided with and hole, poly-natural pond to carry out is up, rise poly-effect, extracts the imflammable gas that economic worth is arranged out, the wasting of resources of avoiding emptying to cause.
2, make the biogas in the coal seam in time gather natural pond Dong Ding, keep fire away, thoroughly stop the danger of lane gas from explosion from being advanced into.
3, technology of the present invention is simple, implements easily, is convenient to the supervision of extensive use and security department.
The specific embodiment:
The invention will be further described below in conjunction with embodiment:
Embodiment one: the present invention utilizes underworkings and gas pipeline, makes on the methane gas out well of gathering to utilize, and its concrete job practices is as follows:
1), several holes, poly-natural pond is set in coal-face air intake lane and top, return airway tunnel, distance in the tunnel between poly-hole, natural pond and the hole is 50 meters, poly-hole, hole, natural pond height is 10 meters, the hole lay netted overcoat in case in the hole coal breakage or spoil hurt sb.'s feelings and alleviate distinguished and admirable impact and stir, the liter of being convenient to gas is poly-;
2), in poly-hole, natural pond, lay subtube, the subtube air inlet port is located at poly-top, hole, natural pond, the gas outlet is communicated with the master of down-hole, gas pipeline dried, Zhi Zucheng, it is close-shaped that the subtube top is " T " word, air inlet port is positioned at pipe side wall in case junk stops up, the air inlet port place is provided with the gas density induction controller at the subtube top, and this control device is connected with the gas pipeline extractor fan to reach at 30% o'clock and automatically start the gas pipeline electromagnetic valve with convenient gas accumulation concentration gas output is utilized.
Poly-hole, natural pond is the poly-hole, natural pond of tilting, and gradient is preferably 45 °.
This hole, poly-natural pond form of construction work is: one side is opened 1-1.5 rice hole in the tunnel, the hole is tilted to, turning round reaches the top, tunnel and need establish poly-position, hole, natural pond, it is communicated with the top, tunnel, continue to be tilted to and stop construction when the vertical distance that makes top, hole to top, tunnel is 10 meters, lay netted overcoat then at the hole, in the hole, lay subtube, subtube is connected with the gas drainage under suction pipeline, the air inlet port place is provided with the gas density induction controller at the subtube top, when gas accumulation concentration reaches 30%, start the gas drainage under suction pipeline electromagnetic valve automatically, gas output is utilized.
Claims (7)
1, a kind of coal mine gas separation method, it is that the gas that is free in the tunnel is assembled, the gas pipeline that utilizes the down-hole to be provided with makes on the methane gas out well of gathering and utilizes, and it is characterized in that concrete job practices is as follows:
1), in coal-face air intake lane and top, return airway tunnel several holes, poly-natural pond are set, poly-hole, hole, natural pond height is 5-12 rice, and the hole laying prevents the netted overcoat of coal breakage in the hole or spoil;
2), in poly-hole, natural pond, lay subtube, the subtube air inlet port is located at poly-top, hole, natural pond, the gas outlet is communicated with the master of down-hole, gas pipeline dried, Zhi Zucheng, it is close-shaped that the subtube top is " T " word, air inlet port is positioned at pipe side wall, and the air inlet port place is provided with the gas density induction controller at the subtube top.
2, coal mine gas separation method according to claim 1 is characterized in that: the distance in the tunnel between poly-hole, natural pond and the hole is a 30-80 rice.
3, coal mine gas separation method according to claim 2 is characterized in that: the distance in the tunnel between poly-hole, natural pond and the hole is that 50 meters of low level bogs, moor are 30 meters
4, according to claim 1,2 or 3 described coal mine gas separation methods, it is characterized in that: poly-hole, natural pond is the poly-hole, natural pond of tilting, and gradient is 30-90 °.
5, coal mine gas separation method according to claim 4 is characterized in that: poly-hole, natural pond be located at the tunnel directly over.
6, coal mine gas separation method according to claim 4, it is characterized in that: water tank is established in subtube and gas pipeline junction, on the water tank air inlet pipe electromagnetic valve is set, electromagnetic valve is connected with the gas density induction controller that is located at air inlet port place, subtube top.
7, a kind of disposable method of separating goaf gas and utilizing that collects of super high seam that is applicable to, it is to accumulating in the gas channeling conduct in the goaf, the gas pipeline that utilizes the down-hole to be provided with makes on the methane gas out well of gathering and utilizes, it is characterized in that concrete job practices is: on the plinth of the basic ore deposit in mine original air intake lane and air draft lane, set up the auxiliary row of light section lane, natural pond, its auxiliary row position, lane, natural pond is located at the return airway top, the top board below is parallel with the bottom return airway, and its horizontal projection drops at the bottom of the coal seam close return airway between the return airway and air intake lane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101102220A CN100489273C (en) | 2003-12-15 | 2003-12-15 | Method for separating coal mine gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101102220A CN100489273C (en) | 2003-12-15 | 2003-12-15 | Method for separating coal mine gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1546843A true CN1546843A (en) | 2004-11-17 |
| CN100489273C CN100489273C (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101102220A Expired - Fee Related CN100489273C (en) | 2003-12-15 | 2003-12-15 | Method for separating coal mine gas |
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| CN (1) | CN100489273C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121369A (en) * | 2010-12-15 | 2011-07-13 | 中国神华能源股份有限公司 | Method for separating gas |
| CN101696637B (en) * | 2009-10-09 | 2011-09-14 | 中国矿业大学 | Coal and gas separation bin and method thereof |
| CN103437803A (en) * | 2013-08-22 | 2013-12-11 | 山西晋城无烟煤矿业集团有限责任公司 | Structure and method for gas drainage of drill holes of high-drainage drill field of coal mine |
-
2003
- 2003-12-15 CN CNB2003101102220A patent/CN100489273C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696637B (en) * | 2009-10-09 | 2011-09-14 | 中国矿业大学 | Coal and gas separation bin and method thereof |
| CN102121369A (en) * | 2010-12-15 | 2011-07-13 | 中国神华能源股份有限公司 | Method for separating gas |
| CN102121369B (en) * | 2010-12-15 | 2013-04-24 | 中国神华能源股份有限公司 | Method for separating gas |
| CN103437803A (en) * | 2013-08-22 | 2013-12-11 | 山西晋城无烟煤矿业集团有限责任公司 | Structure and method for gas drainage of drill holes of high-drainage drill field of coal mine |
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| Publication number | Publication date |
|---|---|
| CN100489273C (en) | 2009-05-20 |
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Granted publication date: 20090520 Termination date: 20111215 |