CN101029576B - Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling - Google Patents
Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling Download PDFInfo
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- CN101029576B CN101029576B CN2007100211623A CN200710021162A CN101029576B CN 101029576 B CN101029576 B CN 101029576B CN 2007100211623 A CN2007100211623 A CN 2007100211623A CN 200710021162 A CN200710021162 A CN 200710021162A CN 101029576 B CN101029576 B CN 101029576B
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- coal
- gas
- spray
- admittance
- tube connector
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- 238000005553 drilling Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000003245 coal Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000605 extraction Methods 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 29
- 238000005086 pumping Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 210000004916 vomit Anatomy 0.000 description 2
- 230000008673 vomiting Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
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Abstract
This is device and method for safety drill in coal bed. Drill at designated position and fit in a sleeve connected with a T orientating exhaust nozzle. Insert a drill through the nozzle to the hole and seal the back end allowing drill turning. Link the nozzle to the separator via a link pipe and start extraction system. This invention makes it possible for coal, water and gas separation while drilling.
Description
Technical field
The present invention relates to outburst danger coal seam safety and lead method and the device that spray is crept into, be particularly useful for the outstanding security protection of coal mine gas.
Background technology
Along with the increase of the seam mining degree of depth, coal-bed gas pressure and content strengthen gradually, and coal and gas outburst risk are more and more serious, and above especially big moulded coal and the gas burst accident of kiloton taken place many mines.For the outburst danger mine of unprotect layer mining conditions, adopt at the end (top) slate lane layer-through drilling to take out the coal-bed gas measure in advance usually.But in the construction layer-through drilling, often coal occurs and gas vomits phenomenon, the single hole injecting coal quantity can reach 5～6t, and a few minutes, interior feeder amount can reach 200m
3The coal dust of ejection causes operating personnel's injures and deaths easily, and the gas of ejection often causes operation place and near tunnel gas density to transfinite, even reaches gas explosion concentration, creeps into to safety and brings very big threat.In order to solve the spray orifice problem in the layer-through drilling construction, domestic more existing blowout hookups, but all there are problems such as consolidation strength is not enough, frictional force deficiency, easily cause the blowout prevention disabler, this class blowout hookup only can change boring coal powder injection direction in addition, can't be when the spray orifice amount is big in time with coal, water, the gas separation of ejection, a large amount of gas enter the operation place, can not fundamentally solve the spray orifice potential safety hazard that exists in creeping into.
Summary of the invention
The objective of the invention is according to the problem that exists in the prior art, provide that a kind of method is simple, the blowout prevention function strong, compact conformation, the outburst danger coal seam safety that can simultaneously coal, water, gas be separated be led method and the device that spray is crept into.
Outburst danger of the present invention coal seam safety is led the method that spray is crept into,
A. at first determine that in rockhole the position construction diameter is that 150mm, length are the boring of 1900mm;
B. the sleeve pipe that with length is 2000mm inserts in the boring, exposes interface tube, with accelerated cement with casing cement;
C. expose one three admittance jet pipe of connection on the interface tube at fixed sleeving, the drilling rod that will have drill bit passes three admittance jet pipes and enters boring, seals follower head with end cover, realizes the rotatory sealing with drilling rod;
D. start rig, normally creep into to the coal seam and stop;
E. with leading the spray tube connector three admittance jet pipes are connected with eliminator, start the extraction system, continue to creep into;
F. during spray orifice, rig stops to advance, and keeps rotation, and the coal of ejection, water, gas enter eliminator to be separated, and gas enters the extraction pipeline, realizes finishing the separation of coal, water, gas when creep in the coal seam.
Outburst danger of the present invention coal seam safety is led the device that spray is crept into, comprise rig, drilling rod that links to each other with rig and high-pressure water pipe, in the feeder connection of described drilling rod, be provided with fixed sleeving, the fixed sleeving exposed junction is provided with drilling rod and leads the three admittance jet pipes that the spray tube connector communicates, be provided with the rotatory sealing end cap between three admittance jet pipes and the drilling rod, the spray tube connector of leading that is connected with three admittance jet pipes is connected with coal, water, gas eliminator, and eliminator is provided with the gas pumping tube connector that links to each other with the extraction system.
Described coal, water, gas eliminator are made of the casing that is located under the bracing frame on the bracing frame, the top of casing is provided with and connects the interface of leading spray tube connector and gas pumping tube connector, between be provided with the water proof baffle plate, wall box and bottom offer several drain holes, the bottom is provided with except that the coal mouth; The interface of described gas pumping tube connector and casing is provided with screen pack; Described extraction system comprises the gas pumping pipeline, by-pass valve control and the aspiration pump that links to each other with the gas pumping pipeline.
The invention has the beneficial effects as follows: coal, water, the gas of boring ejection in time effectively can be separated, and gas sent into the gas drainage under suction pipeline, can guarantee operating personnel's safety on the one hand, can avoid operation place and near tunnel gas density to transfinite on the other hand, prevent gas explosion.This device can be under 10MPa coal-bed gas pressure condition operate as normal, its method is simple, the blowout prevention function is strong, compact conformation, has practicality widely.
Description of drawings
Accompanying drawing is an apparatus structure schematic diagram of the present invention.
Among the figure: 1-boring; The 2-sleeve pipe; The 3-flange; 4-three admittance jet pipes; The 5-end cover; 6-coal, water, gas eliminator; The 7-drain hole; 8-removes the coal mouth; 9-gas pumping tube connector; 10-sprays tube connector; 11-water proof baffle plate; The 12-screen pack; 13-gas pumping pipeline; The 14-bracing frame; The 15-drilling rod; The 16-rig; The 17-water under high pressure; The 18-coal seam; The 19-rock stratum.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Outburst danger of the present invention coal seam safety is led the method that spray is crept into, and at first 19 borings determine that the position construction diameter is that 150mm, length are the boring 1 of 1900mm in the rock stratum; With length is in the fixed sleeving 2 insertion borings of 2000mm, exposes interface tube, with accelerated cement that sleeve pipe 2 is fixed; With flange 3 with three admittance jet pipes 4 with after sleeve pipe 2 is connected, the drilling rod that will have the 90mm drill bit passes three admittance jet pipes 4 and enters boring 1, the end cover sealing follower head that adopts cover plate and sealing mat to constitute is realized the rotatory sealing with drilling rod; Start rig 16, normally creep into to the coal seam and stop; With leading spray tube connector 10 three admittance jet pipes 4 are connected with eliminator 6, start the extraction system, continue to creep into; Because projecting coal bed ature of coal is soft, gas pressure is big, and coal and gas vomit from boring suddenly and is called spray orifice in the drilling process, and this moment, rig stopped to advance, and kept rotation, realized finishing the separation of coal, water, gas when creep in the coal seam.Coal, water, gas by three admittance jet pipes 4, lead after spray tube connector 10 enters eliminator 6, gas enters extraction pipeline 13 by outlet, water is discharged by sidewall and bottom discharge hole 7, coal dust is deposited in eliminator bottom, periodic cleaning.
Outburst danger of the present invention coal seam safety is led the device that spray is crept into, mainly by rig 16, fixed sleeving 2, three admittance jet pipes 4, coal, water, gas eliminator 6 and extraction system constitute, and are connected with drilling rod 15 and high-pressure water pipe 17 on the rig 16, fixed sleeving 2 external diameters are that Φ 108mm, internal diameter are Φ 100mm, the long 2000mm of being, be located in the boring 1, its exposed junction connects three admittance jet pipes, 4, three admittance jet pipes, 4 external diameters to be Φ 108mm, internal diameter Φ 100mm, the long 400mm of straight tube, to lead the long 250mm of jet pipe; Three admittance jet pipes, 4 straight tube two ends are welded with flange 3, its front end is connected with fixed sleeving 2, rotatory sealing end cap 5 realizations of cover plate and sealing mat formation and the rotatory sealing between the drilling rod are adopted in the rear end, the spray tube connector 10 of leading that is connected with three admittance jet pipes 4 is connected with coal, water, gas eliminator 6, coal, water, gas eliminator 6 are made of the casing that bracing frame is located on the bracing frame 14 for 14 times, according to injecting coal quantity size design eliminator 6, eliminator 6 volumes are generally 1～6m
3, process by iron plate.Eliminator 6 tops are provided with each one of import and export, orifice diameter 150mm, and import is connected with three admittance jet pipes 4 by leading spray tube connector 10, and outlet is taken out to be connected to adopt by gas-removing tube connector and gas and is managed 9 continuously, and the extraction ability of gas pumping pipeline is pressed 6m
3/ min design; Install water proof baffle plate 11 between import and export in the eliminator 6, installing screen pack 12 in exit prevents that coal, water from entering the gas pumping pipeline; The drain hole 7 that some diameters are 5mm is offered in sidewall and bottom at eliminator 6, is used for air inlet, draining; Eliminator 6 bottoms are provided with except that coal mouth 8, are used for bug dusting; Gas enters the extraction pipeline by the outlet of eliminator 6 tops, and it is the rubber tube of 150mm that gas pumping tube connector 9 adopts diameter.The extraction system comprises gas pumping pipeline 13, by-pass valve control and the aspiration pump that links to each other with gas pumping pipeline 13.
Claims (4)
1. outburst danger coal seam safety is led the method that spray is crept into, and it is characterized in that:
A. at first the definite position of (19) boring construction diameter is that 150mm, length are the boring of 1900mm (1) in the rock stratum;
B. the sleeve pipe (2) that with length is 2000mm inserts in the boring, exposes interface tube, and is with accelerated cement that sleeve pipe (2) is fixed;
C. expose connection one three admittance jet pipe (4) on the interface tube at fixed sleeving (2), the drilling rod that will have drill bit passes three admittance jet pipes (4) and enters boring, with end cover (5) sealing follower head, realizes the rotatory sealing with drilling rod;
D. start rig (16), normally creep into after coal seam (19) and stop;
E. with leading spray tube connector (10) three admittance jet pipes (4) are connected with eliminator (6), start the extraction system, continue to creep into;
F. during spray orifice, rig stops to advance, and keeps rotation, and the coal of ejection, water, gas enter eliminator to be separated, and gas enters the extraction pipeline, realizes finishing the separation of coal, water, gas when creep in the coal seam.
2. outburst danger coal seam safety is led the device that spray is crept into, comprise rig (16), drilling rod (15) that links to each other with rig (16) and high-pressure water pipe (17), be provided with fixed sleeving (2) in the feeder connection of drilling rod (15), fixed sleeving (2) exposed junction is provided with drilling rod (15) and leads the three admittance jet pipes (4) that spray tube connector (10) communicates, be provided with rotatory sealing end cap (5) between three admittance jet pipes (4) and the drilling rod (15), tube connector (10) and coal are sprayed in leading of being connected with three admittance jet pipes (4), water, gas eliminator (6) is connected, it is characterized in that: eliminator (6) is provided with the gas pumping tube connector (9) that links to each other with the extraction system, described coal, water, gas eliminator (6) is made of the casing that is located under the bracing frame (14) on the bracing frame (14), the top of casing is provided with and connects the interface of leading spray tube connector (10) and gas pumping tube connector (9), between be provided with water proof baffle plate (11), casing is surveyed wall and the bottom offers several drain holes (7), and the bottom is provided with except that coal mouth (8).
3. outburst danger according to claim 2 coal seam safety is led the device that spray is crept into, and it is characterized in that: described gas pumping tube connector (9) is provided with screen pack (12) with the interface of casing.
4. outburst danger according to claim 2 coal seam safety is led the device that creeps into of spray, it is characterized in that: described extraction system comprises gas pumping pipeline (13), by-pass valve control and the aspiration pump that links to each other with gas pumping pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100211623A CN101029576B (en) | 2007-04-02 | 2007-04-02 | Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100211623A CN101029576B (en) | 2007-04-02 | 2007-04-02 | Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101029576A CN101029576A (en) | 2007-09-05 |
| CN101029576B true CN101029576B (en) | 2010-09-15 |
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| CN2007100211623A Expired - Fee Related CN101029576B (en) | 2007-04-02 | 2007-04-02 | Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701505B (en) * | 2009-09-30 | 2012-10-24 | 中国矿业大学 | Sleeve pore-fixing device and method |
| CN102606130B (en) * | 2011-01-24 | 2015-03-25 | 淮南矿业(集团)有限责任公司 | Gas-water separation connecting method for coal mine extraction drilled hole and connecting structure |
| CN102847397B (en) * | 2011-06-27 | 2015-03-25 | 淮南矿业(集团)有限责任公司 | Cleaner unit and gas extraction system |
| CN102337920B (en) * | 2011-09-14 | 2014-04-02 | 成都晟鑫机电设备有限公司 | Gas and dust collecting device |
| CN102434195A (en) * | 2011-12-02 | 2012-05-02 | 鹤壁煤电股份有限公司第三煤矿 | Rock crossing hole blowout preventor |
| CN102635394B (en) * | 2012-05-09 | 2013-12-18 | 中国矿业大学 | Gas, water and coal separation device of coal-mine gas spray hole |
| CN102839964A (en) * | 2012-08-08 | 2012-12-26 | 中国矿业大学 | Coal and gas burst risk parameter drilling and predicting integrated method |
| CN102926697B (en) * | 2012-10-29 | 2015-11-11 | 淮南矿业(集团)有限责任公司 | Port closing device, gas drainage system and port closing method |
| CN103195470B (en) * | 2013-04-15 | 2015-12-09 | 双鸭山市吉昌机械制造有限公司 | Drilling construction Gas gathering-device |
| CN103726869B (en) * | 2014-01-24 | 2015-09-16 | 河南理工大学 | Soft and broken seam gas pumping hole pipe-following drilling method |
| CN103993901B (en) * | 2014-04-25 | 2018-04-20 | 河南理工大学 | A kind of projecting coal bed drilling waterpower is handled up anti-reflection method |
| CN104234739B (en) * | 2014-08-15 | 2016-03-30 | 中国矿业大学 | A kind of gas blastingfracture coal body enhanced gas extraction method in boring |
| CN104358584A (en) * | 2014-11-28 | 2015-02-18 | 贵州盘江矿山机械有限公司 | Anti-blowout system for gas drainage extraction |
| CN107762550B (en) * | 2017-11-06 | 2020-09-04 | 四川大学 | Gas extraction drilling hole sealing method |
| CN110953012A (en) * | 2019-12-03 | 2020-04-03 | 山东科技大学 | Efficient cleaning system and method for hydraulic slag removal of floor rock roadway cross-layer drilling |
| CN112177558B (en) * | 2020-10-13 | 2021-06-25 | 中国矿业大学 | Novel underground coal gasification exploitation process leakage plugging device |
| CN114673549A (en) * | 2022-05-06 | 2022-06-28 | 中国矿业大学 | Drilling blowout prevention automatic control system and method |
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2007
- 2007-04-02 CN CN2007100211623A patent/CN101029576B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
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| 冷开奎.深孔定向钻进技术及其在煤矿工程中的应用.中国煤层气1 1.2004,1(1),34. |
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| CN101029576A (en) | 2007-09-05 |
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Address after: 221116 Jiangsu Province, Xuzhou City Quanshan District Department of science and technology China University of Mining and Technology Co-patentee after: Qinan Coal, Huaibei Mining Co.,Ltd. Patentee after: China University of Mining & Technology Address before: 221116 Jiangsu Province, Xuzhou City Quanshan District Department of science and technology China University of Mining and Technology Co-patentee before: Qinan Coal Mine, Coal Industry Co., Ltd., Huaibei Mining Industry Group Patentee before: China University of Mining & Technology |
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Granted publication date: 20100915 Termination date: 20160402 |
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