CN203879433U - Underground compressed air spot sampling device - Google Patents
Underground compressed air spot sampling device Download PDFInfo
- Publication number
- CN203879433U CN203879433U CN201420211925.6U CN201420211925U CN203879433U CN 203879433 U CN203879433 U CN 203879433U CN 201420211925 U CN201420211925 U CN 201420211925U CN 203879433 U CN203879433 U CN 203879433U
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- drill bit
- drill
- wall
- air
- compressed air
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Abstract
The utility model relates to an underground compressed air spot sampling device. A sample collecting device pipe is connected with a water changing part with a compressed air connector. A double-wall drill rod connected with the water changing part is connected with a drill machine. The double-wall drill rod is connected with a drill bit. The underground compressed air spot sampling device is characterized in that an air-out oblique hole is formed in the outer wall of the drill bit, and an air inlet is formed in the top end of the drill bit. According to the underground compressed air spot sampling device, the air-out oblique hole is formed in the outer wall of the drill bit, the air inlet is formed in the top end of the drill bit, positive-pressure sampling is achieved, the drill bit is provided with an injection pipe body of an injection oblique hole, negative pressure smashed coal sample extracting is achieved, the structure is simple, spot sampling can be achieved, the drill bit does not need to be replaced, sampling is quick, and sample quality is high.
Description
Technical field
The utility model relates to down-hole and presses wind sampling technique and device, and particularly coal mine presses down wind and gets coal sample device.
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 is subject to the success rate of impact sampling of vacuum magnitude 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, has 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.
Utility model content
The purpose of this utility model is for the defect of prior art and deficiency, provides a kind of and presses wind device for fixed point sampling for down-hole, is applicable to press wind to get the various samples such as coal sample, rock sample.
The utility model solves the technical scheme that its technical problem adopts: wind device for fixed point sampling is pressed in down-hole, it is connected with pressing the water of wind joint to become by sample collection device pipe, connect the double-wall drill pipe connection rig that water becomes, by double-wall drill pipe, connect drill bit, 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.
Be convenient to understand the sampling craft of introducing a kind of down-hole pressure wind device for fixed point sampling, rig is in drilling process, from pressing wind joint to be pressed into air, via the annular space of drilling rod inner tube and drilling rod outer tube to the injection inclined hole of drill bit, enter interior tube space and form negative pressure extracting pulverizing coal sample, simultaneously from pressing wind joint to be pressed into air, via the annular space of drilling rod inner tube and drilling rod outer tube to the outer wall air-out inclined hole of drill bit, enter boring, by boring, via drill end air intake, be pressed into interior tube space and form malleation and be pressed into pulverizing coal sample to sample collection device.
The beneficial effects of the utility model are: the drill bit outer wall of this utility model is with air-out inclined hole, drill end is with air intake, realized malleation sampling, drill bit is with the injection body of injection inclined hole, realized 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.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is double-wall drill pipe structural representation of the present utility model;
Fig. 3 is that schematic diagram cuts open in drill bit of the present utility model office;
Fig. 4 is that drill bit master of the present utility model looks schematic diagram;
Fig. 5 is drill bit schematic rear view of the present utility model.
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.
The specific embodiment
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 connected with pressing the water of wind joint 43 to become 4 by sample collection device 6 pipes, connect water and become 4 double-wall drill pipe 3 connection rigs 5, by double-wall drill pipe 3, connect drill bit 1, 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 connected with pressing the water of wind joint 43 to become 4 by sample collection device 6 pipes, connect water and become 4 double-wall drill pipe 3 connection rigs 5, by double-wall drill pipe 3, connect drill bit 1, 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 connected with pressing the water of wind joint 43 to become 4 by sample collection device 6 pipes, connect water and become 4 double-wall drill pipe 3 connection rigs 5, by double-wall drill pipe 3, connect drill bit 1, 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 of 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.
Be convenient to understand and specifically introduce the sampling craft that wind device for fixed point sampling is pressed in a kind of down-hole, 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, rig 5 is in drilling process, from pressing wind joint 43 to be pressed into air, via the annular space 34 of drilling rod inner tube 31 and drilling rod outer tube 32 to the injection inclined hole 21 of drill bit 1, enter interior tube space 33 and form negative pressure extractings and pulverize coal samples, simultaneously from pressing wind joint 43 to be pressed into air, via the annular space 34 of drilling rod inner tube 31 and drilling rod outer tube 32 to the outer wall air-out inclined hole 14 of drill bit 1, enter boring 7, by boring 7 via drill bit 1 top air intake 15 be pressed into interior tube space 33 forms malleation be pressed into pulverizing coal sample to sample collection device 6.
Claims (3)
1. wind device for fixed point sampling is pressed in a down-hole, it is connected with pressing the water of wind joint to become by sample collection device pipe, connects the double-wall drill pipe connection rig that water becomes, and by double-wall drill pipe, connects drill bit, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211925.6U CN203879433U (en) | 2014-04-22 | 2014-04-22 | Underground compressed air spot sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211925.6U CN203879433U (en) | 2014-04-22 | 2014-04-22 | Underground compressed air spot sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879433U true CN203879433U (en) | 2014-10-15 |
Family
ID=51679945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420211925.6U Ceased CN203879433U (en) | 2014-04-22 | 2014-04-22 | Underground compressed air spot sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967437A (en) * | 2014-04-22 | 2014-08-06 | 煤科集团沈阳研究院有限公司 | Underground pressure wind spot sampling device and process |
-
2014
- 2014-04-22 CN CN201420211925.6U patent/CN203879433U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967437A (en) * | 2014-04-22 | 2014-08-06 | 煤科集团沈阳研究院有限公司 | Underground pressure wind spot sampling device and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20160330 Decision number of declaring invalidation: 28561 Granted publication date: 20141015 |