CN103967437A - Underground pressure wind spot sampling device and process - Google Patents
Underground pressure wind spot sampling device and process Download PDFInfo
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- CN103967437A CN103967437A CN201410163961.4A CN201410163961A CN103967437A CN 103967437 A CN103967437 A CN 103967437A CN 201410163961 A CN201410163961 A CN 201410163961A CN 103967437 A CN103967437 A CN 103967437A
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Abstract
The invention relates to an underground pressure wind spot sampling device. According to the underground pressure wind spot sampling device, a sample collection device is connected with a water converter with a pressure wind connector through a pipe, a double-wall drill pipe connected with the water converter is connected with a drilling machine, and the double-wall drill pipe is connected with a drilling bit. The underground pressure wind spot sampling device is characterized in that wind outlet inclined holes are formed in the outer wall of the drilling bit, and a wind inlet is formed in the top end of the drilling bit. The invention further discloses an underground pressure wind spot sampling process of the underground pressure wind spot sampling device. According to the underground pressure wind spot sampling device and process, positive-pressure sampling is realized, the drilling bit is provided with an injection pipe with injection inclined holes, and therefore negative-pressure smashed coal sampling is realized; besides, the structure is simple, spot sampling can be realized, the drilling bit does not need to be replaced, sampling is fast, and the quality of samples is high; according to the underground pressure wind spot sampling process, by the adoption of positive-pressure sampling, the influence of wind flow on the resolving speed of the coal samples can be reduced, as a result, coal powder below cuttings at the front end of the drilling bit can continuously and quickly enter the sample collection device through the center of the drill pipe, the sampling success rate is increased, and the determination result is more close to the actuality when the obtained coal samples are used for conducting gas content determination.
Description
Technical field
The present invention relates to down-hole and press wind sampling technique and device, particularly coal mine presses down wind and gets coal sample device and sampling craft.
Background technology
The mensuration of gas bearing capacity is that Forecast of Gas Emission, gas control and gas pumping design requisite initial data.The mine of China more than 70% is highly gassy mine, and Gas Disaster is restricting the safe working in colliery, therefore, how to improve the sampling and measuring means of this basic data of gas bearing capacity, becomes a difficult problem urgently to be resolved hurrily.
Scientific research personnel has carried out research extensively and profoundly for this problem both at home and abroad, and the means of sampling have at present: negative-pressure ejecting is got coal sample, twist drill rods, basket sampling etc.Negative-pressure ejecting is under negative pressure state coal sample, has affected the desorption rate of coal sample, has destroyed the adsorption law of coal sample, and the success rate that sampled by the impact of vacuum magnitude is lower; It is to get coal sample from twist drill rods outer wall that twist drill rods is got coal sample, coal sample flows from the inside to the outside, run through whole boring, be subject to twist drill rods disturbing influence, the coal dust of drill hole wall is also likely by under mill, therefore the sampling spot that coal sample is detailed is unclear, affected the effect of sampling, and twist drill rods to be subject to drill capacity to affect depth selection more shallow; In basket sample drilling process, must change chisel bit, program is comparatively complicated, and sample time is longer, and the coal sample desorption quantity of taking-up is less, and the gas bearing capacity that records coal sample is less.
Summary of the invention
The object of the invention is to defect and deficiency for prior art, provide a kind of and press wind device for fixed point sampling for down-hole, be applicable to press wind to get the various samples such as coal sample, rock sample, provide a kind of down-hole to press the sampling craft of wind device for fixed point sampling simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: wind device for fixed point sampling is pressed in down-hole, it is connected with the water of pressing wind joint and is become by sample collection device pipe, connect the double-wall drill pipe connection rig that water becomes, connect drill bit by double-wall drill pipe, its feature is: drill bit outer wall is with air-out inclined hole, and drill end is with air intake.
Wherein: drill bit also comprises the injection body with injection inclined hole.
Wherein: drill end is provided with the outer tooth of drill bit with alloy outside alloy inside the outer tooth of drill bit and the outer tooth of drill bit, with tooth in the drill bit of dentalloy in drill bit.
Provide a kind of down-hole to press the sampling craft of wind device for fixed point sampling simultaneously, feature is: rig is in drilling process, enter interior tube space formation negative pressure extracting pulverizing coal sample from pressing wind joint to be pressed into air via annular space to the injection inclined hole of drill bit of drilling rod inner tube and drilling rod outer tube, simultaneously enter boring from pressing wind joint to be pressed into air via annular space to the outer wall air-out inclined hole of drill bit of drilling rod inner tube and drilling rod outer tube, be pressed into interior tube space by boring via drill end air intake and form malleation and be pressed into pulverizing coal sample to sample collection device.
Beneficial effect of the present invention is: the drill bit outer wall of this invention is with air-out inclined hole, drill end is with air intake, realize malleation sampling, drill bit is with the injection body of injection inclined hole, realize negative pressure extracting and pulverized coal sample, and simple in structure, can spot sampling, and not needing more bit change, sampling is quick, sample quality is higher; Its sampling craft adopts malleation sampling can reduce the distinguished and admirable impact on the resolution speed of coal sample own, coal dust under chisel edge smear metal is entered gathering-device from drilling rod center continuously fast, improve sampling success rate, made coal sample measurement result in the time carrying out gas bearing capacity mensuration of obtaining more approach actual.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is double-wall drill pipe structural representation of the present invention;
Fig. 3 is that schematic diagram cuts open in drill bit of the present invention office;
Fig. 4 is that drill bit master of the present invention looks schematic diagram;
Fig. 5 is drill bit schematic rear view of the present invention.
1. drill bits in figure, 2. injection body, 3. double-wall drill pipe, 4. water becomes, 5. rig, 6. sample collection device, 7. boring, the outer tooth of 12. drill bits, tooth in 13. drill bits, 14. air-out inclined holes, 15. air intakes, 21. injection inclined holes, 31. drilling rod inner tubes, 32. drilling rod outer tubes, 33. interior tube spaces, 34. annular spaces, 43. press wind joint, alloy inside the outer tooth of 121. drill bits, alloy outside tooth outside 122. drill bits, dentalloy in 131. drill bits.
Detailed description of the invention
the first embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, wind device for fixed point sampling is pressed in a kind of down-hole, it is managed by sample collection device 6 water connecting with pressing wind joint 43 and becomes 4, the double-wall drill pipe 3 that connects water change 4 connects rig 5, connect drill bit 1 by double-wall drill pipe 3, its feature is: drill bit 1 outer wall is with 14 4 of air-out inclined holes, and drill bit 1 top is with air intake 15.
the second embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, wind device for fixed point sampling is pressed in a kind of down-hole, it is managed by sample collection device 6 water connecting with pressing wind joint 43 and becomes 4, the double-wall drill pipe 3 that connects water change 4 connects rig 5, connect drill bit 1 by double-wall drill pipe 3, its feature is: drill bit 1 outer wall is with 14 4 of air-out inclined holes, and drill bit 1 top is with air intake 15.
Wherein: drill bit 1 also comprises the injection body 2 with six injection inclined holes 21.
the 3rd embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, wind device for fixed point sampling is pressed in a kind of down-hole, it is managed by sample collection device 6 water connecting with pressing wind joint 43 and becomes 4, the double-wall drill pipe 3 that connects water change 4 connects rig 5, connect drill bit 1 by double-wall drill pipe 3, its feature is: drill bit 1 outer wall is with 14 4 of air-out inclined holes, and drill bit 1 top is with air intake 15.
Wherein: drill bit 1 also comprises the injection body 2 with six injection inclined holes 21.
Wherein: drill bit 1 top is provided with 12 4 of the outer teeth of drill bit with alloy 122 outside alloy 121 inside the outer tooth of drill bit and the outer tooth of drill bit, with 13 3 of teeth in the drill bit of dentalloy in drill bit 131.
the 4th embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the sampling craft of wind device for fixed point sampling is pressed in a kind of down-hole, feature is: rig 5 is in drilling process, enter interior tube space 33 via drilling rod inner tube 31 and annular space 34 to the injection inclined hole 21 of drill bit 1 of drilling rod outer tube 32 and form negative pressure extracting and pulverize coal sample from pressing wind joint 43 to be pressed into air, enter boring 7 from pressing wind joint 43 to be pressed into air via drilling rod inner tube 31 and annular space 34 to the outer wall air-out inclined hole 14 of drill bit 1 of drilling rod outer tube 32 simultaneously, by boring 7 via drill bit 1 top air intake 15 be pressed into interior tube space 33 form malleation be pressed into pulverize coal sample to sample collection device 6.
Claims (4)
1. wind device for fixed point sampling is pressed in a down-hole, it is connected with the water of pressing wind joint and is become by sample collection device pipe, connects the double-wall drill pipe connection rig that water becomes, and connects drill bit by double-wall drill pipe, be characterised in that: drill bit outer wall is with air-out inclined hole, and drill end is with air intake.
2. wind device for fixed point sampling is pressed in a kind of down-hole according to claim 1, is characterised in that: drill bit also comprises the injection body with injection inclined hole.
3. wind device for fixed point sampling is pressed in a kind of down-hole according to claim 1 and 2, is characterised in that: drill end is provided with the outer tooth of drill bit with alloy outside alloy inside the outer tooth of drill bit and the outer tooth of drill bit, with tooth in the drill bit of dentalloy in drill bit.
4. the sampling craft of a down-hole pressure wind device for fixed point sampling, be characterised in that: rig is in drilling process, enter interior tube space formation negative pressure extracting pulverizing coal sample from pressing wind joint to be pressed into air via annular space to the injection inclined hole of drill bit of drilling rod inner tube and drilling rod outer tube, simultaneously enter boring from pressing wind joint to be pressed into air via annular space to the outer wall air-out inclined hole of drill bit of drilling rod inner tube and drilling rod outer tube, be pressed into interior tube space by boring via drill end air intake and form malleation and be pressed into pulverizing coal sample to sample collection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163961.4A CN103967437A (en) | 2014-04-22 | 2014-04-22 | Underground pressure wind spot sampling device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163961.4A CN103967437A (en) | 2014-04-22 | 2014-04-22 | Underground pressure wind spot sampling device and process |
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| Publication Number | Publication Date |
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| CN103967437A true CN103967437A (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410163961.4A Pending CN103967437A (en) | 2014-04-22 | 2014-04-22 | Underground pressure wind spot sampling device and process |
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| CN (1) | CN103967437A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194035A (en) * | 2016-08-12 | 2016-12-07 | 河南理工大学 | A kind of detachable cutting tooth spiral PDC drill bit |
| CN107035329A (en) * | 2017-05-27 | 2017-08-11 | 重庆泛嘉晟禾工程技术检测有限公司 | A kind of coal mine gas extraction borehole presses wind reacting cycle inward turning emitter |
| CN110530670A (en) * | 2019-09-29 | 2019-12-03 | 王海瑞 | A kind of reacting cycle dust sampling water tail apparatus |
| CN111042812A (en) * | 2020-01-13 | 2020-04-21 | 煤科集团沈阳研究院有限公司 | Underground fixed-point sampling device and method |
| CN111649979A (en) * | 2020-06-12 | 2020-09-11 | 煤科集团沈阳研究院有限公司 | Nitrogen low-temperature positive-pressure remote rapid gas content sampling device and method |
| CN113550707A (en) * | 2021-07-26 | 2021-10-26 | 中煤科工集团沈阳研究院有限公司 | Sampling hole sealing pressure measuring drilling tool and sampling hole sealing pressure measuring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2557526Y (en) * | 2002-05-27 | 2003-06-25 | 许立力 | Integral ball-tooth type drill |
| US6807873B2 (en) * | 2002-02-27 | 2004-10-26 | Ben E. Jaeger | Dry material sampler and method |
| CN102798548A (en) * | 2012-08-16 | 2012-11-28 | 中煤科工集团重庆研究院 | Positive and negative pressure combined plug flow fixed-point sampling device |
| CN203050511U (en) * | 2013-01-31 | 2013-07-10 | 中煤科工集团重庆研究院 | Whirlwind type jet drill bit |
| CN203879433U (en) * | 2014-04-22 | 2014-10-15 | 煤科集团沈阳研究院有限公司 | Underground compressed air spot sampling device |
-
2014
- 2014-04-22 CN CN201410163961.4A patent/CN103967437A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6807873B2 (en) * | 2002-02-27 | 2004-10-26 | Ben E. Jaeger | Dry material sampler and method |
| CN2557526Y (en) * | 2002-05-27 | 2003-06-25 | 许立力 | Integral ball-tooth type drill |
| CN102798548A (en) * | 2012-08-16 | 2012-11-28 | 中煤科工集团重庆研究院 | Positive and negative pressure combined plug flow fixed-point sampling device |
| CN203050511U (en) * | 2013-01-31 | 2013-07-10 | 中煤科工集团重庆研究院 | Whirlwind type jet drill bit |
| CN203879433U (en) * | 2014-04-22 | 2014-10-15 | 煤科集团沈阳研究院有限公司 | Underground compressed air spot sampling device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194035A (en) * | 2016-08-12 | 2016-12-07 | 河南理工大学 | A kind of detachable cutting tooth spiral PDC drill bit |
| CN107035329A (en) * | 2017-05-27 | 2017-08-11 | 重庆泛嘉晟禾工程技术检测有限公司 | A kind of coal mine gas extraction borehole presses wind reacting cycle inward turning emitter |
| CN110530670A (en) * | 2019-09-29 | 2019-12-03 | 王海瑞 | A kind of reacting cycle dust sampling water tail apparatus |
| CN111042812A (en) * | 2020-01-13 | 2020-04-21 | 煤科集团沈阳研究院有限公司 | Underground fixed-point sampling device and method |
| CN111649979A (en) * | 2020-06-12 | 2020-09-11 | 煤科集团沈阳研究院有限公司 | Nitrogen low-temperature positive-pressure remote rapid gas content sampling device and method |
| CN111649979B (en) * | 2020-06-12 | 2021-07-16 | 中煤科工集团沈阳研究院有限公司 | Nitrogen low-temperature positive-pressure remote rapid gas content sampling device and method |
| CN113550707A (en) * | 2021-07-26 | 2021-10-26 | 中煤科工集团沈阳研究院有限公司 | Sampling hole sealing pressure measuring drilling tool and sampling hole sealing pressure measuring method |
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Application publication date: 20140806 |
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