CN101012755A - Equipment for increasing gas exhaustion of coal mine bed by hole drilling - Google Patents
Equipment for increasing gas exhaustion of coal mine bed by hole drilling Download PDFInfo
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- CN101012755A CN101012755A CN 200710084504 CN200710084504A CN101012755A CN 101012755 A CN101012755 A CN 101012755A CN 200710084504 CN200710084504 CN 200710084504 CN 200710084504 A CN200710084504 A CN 200710084504A CN 101012755 A CN101012755 A CN 101012755A
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- coal mine
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Abstract
The invention relates to an equipment of increasing gas drainage in borehole for coal-mine, characterized in that air is compressed in the air storage bag by an air compressor; the air storage bag is connected with the borehole for coal-mine through the rapid on-off valve; when the valve is on rapidly, because the high-pressure air is released suddenly, the attack to the coal wall round the bore hole for coal-mine makes the original crack of coal wall round the borehole growth so that the coal seam with low permeability increases the permeability, the gas in coal seam with low permeability is released more easily, the emission quantity and the drainage quantity of gas in coal seam with low permeability are increased.
Description
Technical field: the equipment of increasing gas exhaustion of coal mine bed by hole drilling belongs to the safety of coal mines field, is specially adapted to gas discharge in mine and improves the gas discharge in mine amount.
Background technology: by retrieval comprehensively both at home and abroad, the equipment of increasing gas exhaustion of coal mine bed by hole drilling mainly is to improve coal bed drilling gas drainage under suction amount by the method that changes coal bed drilling arrangement and increase boring extraction negative pressure, its shortcoming is construction volume and the boring drilling depth amount that has increased boring, and expense increases.Stopping up in the hole then holes will scrap if meet.Can increase electric power and consume and increase the extraction machine utilization and improve the extraction negative pressure.Invented the equipment of increasing gas exhaustion of coal mine bed by hole drilling in order to address the above problem us.
Main contents: the equipment of increasing gas exhaustion of coal mine bed by hole drilling is characterized in that by air compressor air being pressed in the gas storage bag, the gas storage bag links to each other with coal bed drilling by quick-acting valve, when throwing open quick-acting valve, because the unexpected release of pressure-air, coal bed drilling periphery rib is produced impact, make primary joint of coal bed drilling periphery rib and crack more to educate, thereby make low air permeability coal seam, increased gas permeability, make the easier release of gas in the lower permeability seam, thereby increased the outburst amount and the pumping volume of low air permeability coal seam gas.
The method of increasing gas exhaustion of coal mine bed by hole drilling compared with prior art has the following advantages:
1, method is simple, manages easy to use.
2, energy conservation, non-environmental-pollution, but continuous several times is reused.
3, not only can increase the coal bed gas drainage amount, and can carry out gas bleed, prevent the boring obstruction boring.
4, can measure drilling depth and drilling and sealing quality by the boring air pressure change.
Description of drawings:
Accompanying drawing is the equipment schematic diagram of increasing gas exhaustion of coal mine bed by hole drilling.
1, coal bed drilling 2, hole packer;
3, quick-acting valve; 4, high pressure gas bag; 5, air compressor.
Specific embodiments: existing is the example explanation with the accompanying drawing: coal bed drilling (1) is connected with quick-acting valve (3) by steel pipe after with hole packer (2) sealing of hole, quick-acting valve (3) is connected with high pressure gas bag (4), high pressure gas bag (4) volume is more than ten times of borehole volume, the high-pressure gas pressure of high pressure gas bag (4) is more than the 0.75Mpa, when opening quick-acting valve (3) fast suddenly, suddenly the gases at high pressure of gushing out produce coal bed drilling periphery rib and impact, make primary joint of coal bed drilling periphery rib and crack more to educate, thereby make low air permeability coal seam, increased gas permeability, make the easier release of gas in the lower permeability seam, thereby increased the outburst amount and the pumping volume of low air permeability coal seam gas.Also can move air compressor (5) by ground fixed air compressor (5) or down-hole links to each other and fetches direct realization said method with boring.
Claims (2)
1, the equipment of increasing gas exhaustion of coal mine bed by hole drilling is characterized in that by air compressor air being pressed in the gas storage bag, and the gas storage bag links to each other with coal bed drilling by quick-acting valve, realizes the equipment of increasing gas exhaustion of coal mine bed by hole drilling;
2, the equipment of increasing gas exhaustion of coal mine bed by hole drilling is characterized in that venthole by big capacity air compressor directly links by quick-acting valve and hole packer and constitutes, and realizes the equipment of increasing gas exhaustion of coal mine bed by hole drilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710084504 CN101012755A (en) | 2007-02-11 | 2007-02-11 | Equipment for increasing gas exhaustion of coal mine bed by hole drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710084504 CN101012755A (en) | 2007-02-11 | 2007-02-11 | Equipment for increasing gas exhaustion of coal mine bed by hole drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101012755A true CN101012755A (en) | 2007-08-08 |
Family
ID=38700462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710084504 Pending CN101012755A (en) | 2007-02-11 | 2007-02-11 | Equipment for increasing gas exhaustion of coal mine bed by hole drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101012755A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858227A (en) * | 2010-05-24 | 2010-10-13 | 安徽省皖北煤电集团孟庄煤矿 | Device for intensively and fast draining water in downward drainage drill hole |
| CN102071921A (en) * | 2010-12-30 | 2011-05-25 | 河南理工大学 | Underground drilling and fracturing-integrated staged fracturing device and gas drainage process |
| CN102352768A (en) * | 2011-10-19 | 2012-02-15 | 中国矿业大学 | Gas drainage method and equipment with alternative drainage |
| CN101988385B (en) * | 2009-08-07 | 2012-07-25 | 中国瑞林工程技术有限公司 | Ventilation method for karst water-rich mine |
| CN102913272A (en) * | 2011-08-05 | 2013-02-06 | 淮南矿业(集团)有限责任公司 | Device and method for displacing methane gas with positive pressure air |
| CN101581232B (en) * | 2009-06-16 | 2013-03-06 | 煤炭科学研究总院沈阳研究院 | Method for pre-pumping coal body gas by concussion fracture of high-pressure gas |
| CN104564158A (en) * | 2015-01-16 | 2015-04-29 | 平安开诚智能安全装备有限责任公司 | Gas early warning device and system |
| CN110907335A (en) * | 2019-12-17 | 2020-03-24 | 华北科技学院 | Coal bed gas permeability simulation experiment device and control method thereof |
| CN110939478A (en) * | 2019-12-17 | 2020-03-31 | 华北科技学院 | Method for improving gas permeability of coal bed by adopting air cannon vibration |
-
2007
- 2007-02-11 CN CN 200710084504 patent/CN101012755A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581232B (en) * | 2009-06-16 | 2013-03-06 | 煤炭科学研究总院沈阳研究院 | Method for pre-pumping coal body gas by concussion fracture of high-pressure gas |
| CN101988385B (en) * | 2009-08-07 | 2012-07-25 | 中国瑞林工程技术有限公司 | Ventilation method for karst water-rich mine |
| CN101858227A (en) * | 2010-05-24 | 2010-10-13 | 安徽省皖北煤电集团孟庄煤矿 | Device for intensively and fast draining water in downward drainage drill hole |
| CN102071921A (en) * | 2010-12-30 | 2011-05-25 | 河南理工大学 | Underground drilling and fracturing-integrated staged fracturing device and gas drainage process |
| CN102071921B (en) * | 2010-12-30 | 2013-06-19 | 河南理工大学 | Underground drilling and fracturing-integrated staged fracturing device and gas drainage process |
| CN102913272B (en) * | 2011-08-05 | 2015-12-09 | 淮南矿业(集团)有限责任公司 | The device and method of gas replacement with positive pressure air |
| CN102913272A (en) * | 2011-08-05 | 2013-02-06 | 淮南矿业(集团)有限责任公司 | Device and method for displacing methane gas with positive pressure air |
| WO2013056597A1 (en) * | 2011-10-19 | 2013-04-25 | 中国矿业大学 | Gas extraction method and device with alternating extraction and injection |
| CN102352768A (en) * | 2011-10-19 | 2012-02-15 | 中国矿业大学 | Gas drainage method and equipment with alternative drainage |
| CN104564158A (en) * | 2015-01-16 | 2015-04-29 | 平安开诚智能安全装备有限责任公司 | Gas early warning device and system |
| CN104564158B (en) * | 2015-01-16 | 2016-08-24 | 平安开诚智能安全装备有限责任公司 | Methane prediction Apparatus and system |
| CN110907335A (en) * | 2019-12-17 | 2020-03-24 | 华北科技学院 | Coal bed gas permeability simulation experiment device and control method thereof |
| CN110939478A (en) * | 2019-12-17 | 2020-03-31 | 华北科技学院 | Method for improving gas permeability of coal bed by adopting air cannon vibration |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20070808 |