CN107269271A - A kind of coal mine down-hole drilling coal sample extraction element - Google Patents
A kind of coal mine down-hole drilling coal sample extraction element Download PDFInfo
- Publication number
- CN107269271A CN107269271A CN201710609132.8A CN201710609132A CN107269271A CN 107269271 A CN107269271 A CN 107269271A CN 201710609132 A CN201710609132 A CN 201710609132A CN 107269271 A CN107269271 A CN 107269271A
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- Prior art keywords
- coal
- neck
- enter
- cylinder
- storage cylinder
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- 239000003245 coal Substances 0.000 title claims abstract description 157
- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 238000000605 extraction Methods 0.000 title claims abstract description 11
- 239000012634 fragment Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005065 mining Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Soil Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of coal mine down-hole drilling coal sample extraction element, including enter coal cylinder, enter coal neck and coal-storage cylinder, enter coal neck, enter coal cylinder and coal-storage cylinder be sequentially threadedly coupled and communicate；Vane cutter tooth is circumferentially provided with the section for entering coal cylinder coal-feeding end；Enter the elastic baffling device for being provided with coal neck and coal neck inner chamber being made to be changed between opening and closing；Coal-storage cylinder is connected with drill rod thread.Package unit of the present invention is simple in construction, is divided into three parts, is easy to dismounting to take out coal sample；It is with low cost, and can meet that underground is soft or hard coal body in all kinds of drillings extract coal sample the need for, while taken coal sample is generally block, be easy to rejecting spoil part, it is ensured that the purity of coal sample；Ore deposit root can particularly be processed according to the size of drilling and the size of required coal sample amount.
Description
Technical field
The present invention relates to field of mining, and in particular to a kind of coal mine down-hole drilling coal sample extraction element.
Background technology
Coal is the important basic energy resource of China, since " 12 " planning, accelerates Coal Green exploitation, cleaning profit
With, it has been normality, and for the severe situation in current colliery, cost efficiency is even more the most important thing in work.From 2012 to
It is modern, although the accident rate in progress of coal mining has declined, but the generation of any accident can not all despise, all can be to existing
Last layer frost is covered in gloomy coal mining enterprise, the harm of especially coal and gas prominent accident is the most serious in coal mining accident.
It is a crucial step to carry out coal and gas outburst prominent controlling work, and the validity for protruding preventing and controlling depends on coal and gas prominent
The accuracy of prediction, while the accuracy key of Coal and Gas Outbursts Prediction is that prediction index measured value is needed accurate and can represented
Soft layering in coal seam.
《Prevent and treat coal and gas prominent regulation》Article 13 provides that projecting coal bed identification should be according to the coal seam of practical measurement
The indexs such as maximum gas pressure P, the Failure type of soft layering coal, the solid coefficient f of the gas diffusion initial speed Δ p of coal and coal
Identified.《The solid coefficient assay method of coal》（MT49—1987）Preferably 20 ~ 30mm coal sample block is mentioned in standard
It is measured f values；《Coal seam gas-bearing capacity underground Direct Determination》（GB/T23250—2009）Provided in standard new sudden and violent
Preferred coal core sampler is answered in the coal road of dew, and whether column coal core or powdery coal core will reject the coal of the part containing spoil
Sample.
The patent for extracting coal sample about drilling at present has a lot, and most of sampling theorems are all that drill bit is cut using blast
The ickings fallen is blown into the sampler space, such as：A kind of 2 months 2015 Chinese patents disclosed in 25 days " new drilling coal sample sampler "
（Application number：201420442884.1, grant number：CN204175294U）, the sampler is mainly made up of drill bit, sleeve pipe, drilling rod,
Sampling theorem is that drill bit cuts coal body powdering, and coal dust is blown into the sampler space by blast.Due to the sampler space be sleeve pipe with
This just significantly limit taken coal sample amount for space between drilling rod, in addition it is lower take coal sample to hole when, due under the sampler space
End does not prevent the auxiliary equipment that coal sample falls, and during brill is moved back, takes coal sample to be easy to drop, while being only limitted to take coal
Bits, and the maximum deficiency of ickings is to be difficult to reject spoil particle therein.Sampler principle also is complicated, this adds increased
The unreliable degree of device, in use once there is some part to go wrong, sampling just failure.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of one kind simple in construction, easy to use, with low cost
Coal mine down-hole drilling coal sample extraction element, it takes coal sample to be generally block, is easy to reject spoil part, it is ensured that coal sample it is pure
Degree, and can meet that underground is soft or hard coal body in all kinds of drillings extract coal sample the need for.
The present invention is achieved by the following technical solutions：A kind of coal mine down-hole drilling coal sample extraction element, including enter coal
Cylinder, enter coal neck and coal-storage cylinder, enter coal neck, enter coal cylinder and coal-storage cylinder be sequentially threadedly coupled and communicate；Enter coal cylinder coal-feeding end
Vane cutter tooth is circumferentially provided with section；Entering to be provided with coal neck can be such that coal neck inner chamber turns between opening and closing
The elastic baffling device changed；Coal-storage cylinder is connected with drill rod thread.
It is described enter coal cylinder length according to coal thickness determined；The length of the coal-storage cylinder is according to the coal amount to be extracted
It can be adjusted.
The elastic baffling device is made up of multiple equal-sized fan-shaped shell fragments, and the radius of the shell fragment is with entering coal neck
Radius it is equal, the arc-shaped side of each shell fragment and enter coal neck be connected, the center of circle is pointed into coal neck center.
The preferred vane shape of shell fragment, and be in close contact between every vane shape shell fragment, coal can be encapsulated into after installation
Neck.
It is described enter coal cylinder coal exit set internal thread；Enter coal neck enter coal end and coal exit is respectively equipped with external screw thread；Storage
Coal cylinder enters coal end provided with internal thread, and coal-storage cylinder outer end is connected with the bolt for jointed rod；It is described enter coal cylinder, enter coal neck and
Coal-storage cylinder is connected through a screw thread.
Compared with prior art, package unit of the present invention is simple in construction, is divided into three parts, is easy to dismounting to take out coal sample；Into
This is cheap, and can meet that underground is soft or hard coal body in all kinds of drillings extract coal sample the need for, while taken coal sample is generally bulk,
It is easy to reject spoil part, it is ensured that the purity of coal sample；Ore deposit root can particularly be made according to the size and required coal sample amount of drilling
Size be processed.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the structural representation of baffling device.
In figure：1. vane cutter tooth；2. enter coal cylinder；3. screw channel；4. screw thread；5. baffling device；6. screw channel；7. bolt；8. enter
Coal neck；9. screw thread；10. coal-storage cylinder.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of coal mine down-hole drilling coal sample extraction element, including hollow-core construction enters coal cylinder 2, enters coal neck
8 and coal-storage cylinder 10, it is described enter coal cylinder 2 coal-feeding end section circumferentially be used to cut in coal body, coal exit provided with cutter tooth 1 to set screw channel
3；Enter coal neck 8 enter coal end and coal exit is respectively equipped with external screw thread 4,9, enter in coal neck 8 provided with can make in coal neck 8
The baffling device 5 that chamber is changed between opening and closing；Coal-storage cylinder 10 enters coal end provided with screw channel 6, and the outer end of coal-storage cylinder 10 is connected with
Bolt 7 for jointed rod；It is described enter coal cylinder 2, enter coal neck 8 and coal-storage cylinder 10 is sequentially connected with, and in communicating after connection
State.
As shown in Fig. 2 the baffling device 5 is made up of multiple equal-sized fan-shaped shell fragments, the radius of the shell fragment with
The radius for entering coal neck 8 is equal, and the arc-shaped side of each shell fragment is connected with entering coal neck 8, and the center of circle is pointed into the center of coal neck 8.It is described
The preferred vane shape of shell fragment, and be in close contact between every vane shape shell fragment, coal neck 8 can be encapsulated into after installation.
The use of process is, when drilling rod gets to coal seam, to take out drilling rod, lay down drill bit, load onto the present apparatus.The present apparatus with brill
Bar feeding drilling, starts drilling, at this moment the just fly-cutting coal body of vane cutter tooth 1, is cut away by vane cutter tooth when being sent to coal seam
The coal body not destroyed strongly just enters coal cylinder 2, with further drilling, and coal body is reached into coal neck 8, passes through device
Before push away, constantly have coal body toward enter coal cylinder 2 extrude, cause into coal neck 8 vane shape shell fragment opening, coal body enter coal-storage cylinder 10.
When coal body is full of coal-storage cylinder 10, drilling rod is exited, the vane shape shell fragment that coal neck 8 is entered during drilling rod is exited can be because extruding
The disappearance of external force, quick-make, and then exiting with drilling rod, coal sample is extracted.
Package unit is simple in construction, easy to use, with low cost, and can meet that underground is soft or hard coal body in all kinds of drillings
The need for extracting coal sample, while taken coal sample is generally block, it is easy to reject spoil part, it is ensured that the purity of coal sample.
Claims (4)
1. a kind of coal mine down-hole drilling coal sample extraction element, it is characterised in that including entering coal cylinder, entering coal neck and coal-storage cylinder, enter
Coal neck, enter coal cylinder and coal-storage cylinder be sequentially threadedly coupled and communicate；Vane knife is circumferentially provided with the section for entering coal cylinder coal-feeding end
Tooth；Enter the elastic baffling device for being provided with coal neck and coal neck inner chamber being made to be changed between opening and closing；Coal storage
Cylinder is connected with drill rod thread.
2. a kind of coal mine down-hole drilling coal sample extraction element according to claim 1, it is characterised in that the elasticity barrier
Device is made up of multiple equal-sized fan-shaped shell fragments, and the radius of the shell fragment is equal with the radius for entering coal neck, each shell fragment
Arc-shaped side is connected with entering coal neck, and the center of circle is pointed into coal neck center.
3. a kind of coal mine down-hole drilling coal sample extraction element according to claim 2, it is characterised in that the elasticity barrier
Device is to be in close contact between vane shape, and every vane shape shell fragment, and coal neck can be encapsulated into after installation.
4. a kind of coal mine down-hole drilling coal sample extraction element according to claim 1, it is characterised in that it is described enter coal cylinder
Coal exit sets internal thread；Enter coal neck enter coal end and coal exit is respectively equipped with external screw thread；Coal-storage cylinder enters coal end provided with internal thread,
Coal-storage cylinder outer end is connected with the bolt for jointed rod；It is described enter coal cylinder, enter coal neck and coal-storage cylinder is connected through a screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609132.8A CN107269271A (en) | 2017-07-25 | 2017-07-25 | A kind of coal mine down-hole drilling coal sample extraction element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609132.8A CN107269271A (en) | 2017-07-25 | 2017-07-25 | A kind of coal mine down-hole drilling coal sample extraction element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107269271A true CN107269271A (en) | 2017-10-20 |
Family
ID=60078733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710609132.8A Pending CN107269271A (en) | 2017-07-25 | 2017-07-25 | A kind of coal mine down-hole drilling coal sample extraction element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107269271A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806341A (en) * | 2017-12-19 | 2018-03-16 | 焦作煤业（集团）有限责任公司 | A kind of coal mine deep hole fixed point closed sampling device and sampling method |
| CN114320198A (en) * | 2021-11-15 | 2022-04-12 | 淮北矿业股份有限公司 | Underground tectonic coal in-situ sampling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351765A (en) * | 1993-08-31 | 1994-10-04 | Baroid Technology, Inc. | Coring assembly and method |
| CN201778708U (en) * | 2010-04-16 | 2011-03-30 | 北京骄阳山水石油工程技术有限公司 | Embedded rock core grabber of coring tool |
| CN202031513U (en) * | 2011-04-15 | 2011-11-09 | 黄卫东 | Core-taking grabbing spring for drilling soft and broken stratum geological cores |
| CN102287154A (en) * | 2011-05-25 | 2011-12-21 | 中煤科工集团重庆研究院 | Soft coal bed self sealing type sampling drill bit |
| CN102384860A (en) * | 2011-07-25 | 2012-03-21 | 华北科技学院 | Counter-rotating sealing coal sample sampler and application method thereof |
| CN206957704U (en) * | 2017-07-25 | 2018-02-02 | 刘荣亮 | A kind of coal mine down-hole drilling coal sample extraction element |
-
2017
- 2017-07-25 CN CN201710609132.8A patent/CN107269271A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351765A (en) * | 1993-08-31 | 1994-10-04 | Baroid Technology, Inc. | Coring assembly and method |
| CN201778708U (en) * | 2010-04-16 | 2011-03-30 | 北京骄阳山水石油工程技术有限公司 | Embedded rock core grabber of coring tool |
| CN202031513U (en) * | 2011-04-15 | 2011-11-09 | 黄卫东 | Core-taking grabbing spring for drilling soft and broken stratum geological cores |
| CN102287154A (en) * | 2011-05-25 | 2011-12-21 | 中煤科工集团重庆研究院 | Soft coal bed self sealing type sampling drill bit |
| CN102384860A (en) * | 2011-07-25 | 2012-03-21 | 华北科技学院 | Counter-rotating sealing coal sample sampler and application method thereof |
| CN206957704U (en) * | 2017-07-25 | 2018-02-02 | 刘荣亮 | A kind of coal mine down-hole drilling coal sample extraction element |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806341A (en) * | 2017-12-19 | 2018-03-16 | 焦作煤业（集团）有限责任公司 | A kind of coal mine deep hole fixed point closed sampling device and sampling method |
| CN107806341B (en) * | 2017-12-19 | 2020-09-15 | 焦作煤业（集团）有限责任公司 | Coal mine deep hole fixed point airtight sampling device and sampling method |
| CN114320198A (en) * | 2021-11-15 | 2022-04-12 | 淮北矿业股份有限公司 | Underground tectonic coal in-situ sampling device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171020 |
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| WD01 | Invention patent application deemed withdrawn after publication |