CN206540716U - Gas content fixed point sampling device - Google Patents
Gas content fixed point sampling device Download PDFInfo
- Publication number
- CN206540716U CN206540716U CN201720197163.2U CN201720197163U CN206540716U CN 206540716 U CN206540716 U CN 206540716U CN 201720197163 U CN201720197163 U CN 201720197163U CN 206540716 U CN206540716 U CN 206540716U
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- CN
- China
- Prior art keywords
- coring
- corer
- pipe
- coal
- bit
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a gas content fixed point sampling device, the device includes coring pipe, connector, coring bit, sealed lid, coring pipe includes coring pipe inner chamber, coring pipe one end be provided with the bolt mouth, coring pipe outer wall is provided with the spiral line, coring pipe still be provided with coring pipe external screw thread, sealed lid is provided with the pinhole, coring pipe connects in auger stem one end, fixes through the bolt mouth, coring pipe is through coring outer tube threaded connection coring bit, the auger stem is with coring pipe and coring bit send into the drilling, coring bit cuts the coal and creeps into, and the coal core gets into coring pipe inner chamber, and the spiral line on the coring pipe outer wall discharges the coal on the drilling coal wall, after the coring pipe inner chamber was filled with the coal sample, withdraw from fast, coring pipe and coring bit lift off from the auger stem, the bit is twisted off from coring pipe, and the core taking pipe is screwed down by replacing the sealing cover, desorption is carried out through the needle hole on the sealing cover underground, and the gas desorption amount of the core taking coal sample is measured.
Description
Technical field
The utility model is related to a kind of sampler, particularly relates to a kind of new gas bearing capacity spot sampling dress of underground coal mine
Put.
Background technology
During coal-mine gas content spot sampling, there is problems with the prior art：
（1）In drilling cuttings method can not spot sampling, cause gas bearing capacity determine it is not accurate enough the problem of.
（2）It is pulverized coal sample that coal sample is taken in drilling cuttings method, it is difficult to have free gas, the problem of gas bearing capacity test is inaccurate.
（3）Single tube sample time is long in core method, and sample time can not meet《The coal seam gas-bearing capacity underground directly side of measure
Method》The problem of GB/T23250 requirement.
（4）Coal core pipe causes the rise of coal sample temperature to produce rotten, acceleration coal sample gas with coal seam frictional heat in core method
The problem of desorption.
（5）Need from corer to go to coal sample in coal sample tank in core method, the problem of gas can largely lose.
Utility model content
In order to solve technical problem present in prior art, the utility model provides a kind of gas bearing capacity spot sampling
Device.
The utility model discloses a kind of gas bearing capacity device for fixed point sampling, described device includes corer, connector, taken
Core drill bit, closure, the corer includes coring tube cavity, and described corer one end is provided with outside pin clamp, corer
Spiral lamination is provided with wall, described corer is additionally provided with corer external screw thread, and the closure is provided with pin hole, described to take
Core pipe is connected on twist drill rods one end, is fixed by pin clamp, and the corer connects coring bit, institute by coring external pipe thread
State twist drill rods to deliver to corer and coring bit in drilling, coring bit is cut coal borer and entered, coal core enters in coring tube cavity,
The coal on spiral lamination discharge drilling rib in coring pipe outer wall, the coring tube cavity is filled after coal sample, quickly exited, described
Corer is unloaded with coring bit from twist drill rods, and the coring bit is backed out from corer, and the corer changes sealing
Lid is tightened, and is desorbed in underground by the pin hole on the closure, determines the desorption of mash gas amount of coring coal sample.
Compared with traditional drilling cuttings method aperture sampling, the utility model is to take coal core sample, can accomplish spot sampling, is solved
Taking that coal sample is impure, coal sample open-assembly time is uncertain, adsorption gas easily loses in traditional drilling cuttings method aperture sampling etc. asks
Topic.
Compared with single tube core sampling method, the utility model miniaturization, sampling technique is simple, equipment is simple and convenient to operate,
Sampling time, short energy was met《Coal seam gas-bearing capacity underground Direct Determination》GB/T23250 sampling requirement.
Compared with single tube core sampling method, the utility model employs coring pipe outer wall spiral lamination row's powder method, solves
Because of corer and drilling rib friction generation high temperature in single tube core sampling method, coal sample in corer is caused to be accelerated by pyrometamorphism
The problem of desorption of mash gas loses.
The utility model combines the advantage of traditional drilling cuttings method and single tube core method, can accomplish the fixed point of single tube core method
Sampling, can accomplish the advantage that traditional drilling cuttings method sampling technique is simple, equipment is simple and convenient to operate again.
Brief description of the drawings
Fig. 1 is a kind of gas bearing capacity device for fixed point sampling structural representation.
In Fig. 1：1- corers；2- spiral laminations；3- coring tube cavities；4- corer external screw threads；5- connectors；6- latches
Mouthful；7- coring bits；8- closures；9- pin holes.
Embodiment
It is further to the utility model below in conjunction with the accompanying drawings in order to be able to be more clearly understood that the technical solution of the utility model
Explanation.
As shown in figure 1, described device includes corer 1, connector 5, coring bit 7, closure 8, the corer bag
Coring tube cavity 3 is included, described corer one end is provided with pin clamp 6, coring pipe outer wall and is provided with spiral lamination 2, described
Corer is additionally provided with corer external screw thread 4, and the closure is provided with pin hole 9,
First crept into using air drill or electric drill clamping twist drill rods, twist drill rods front end is with Noncoring drill bit, when drilling arrives pre-
Positioning is postponed, the coal dust in emptying drilling, and twist drill rods are then exited rapidly, are exited after twist drill rods, drilling rod front end is unloaded
Noncoring drill bit, twist drill rods are connected on by an end of connector, another to terminate on the connector of corer 1, solid by pin clamp 6
It is fixed, coring bit 7 is tightened by corer external screw thread 4 and is connected on corer 1, by twist drill rods by corer 1 and coring
Drill bit 7, which is sent, to be drilled into hole, is crept into after hole depth is reached, coring bit 7 is cut coal borer and entered, coal core enters coring tube cavity 3, and drill coal
Coal on wall is discharged by corer external screw thread 4, then is discharged by twist drill rods toward drilling is outer, when coring tube cavity 3 fills coal
After sample, quickly exit, corer 1 is unloaded with coring bit 7 from twist drill rods, then coring bit 7 is twisted from corer 1
Under, change closure 8 and tighten, desorbed in underground by the pin hole 9 on closure, determine the desorption of mash gas of coring coal sample
Amount, completes sampling work.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent claim
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent claim.
Claims (1)
1. a kind of gas bearing capacity device for fixed point sampling, it is characterised in that including corer, connector, coring bit, closure,
The corer includes, coring tube cavity, and described corer one end is provided with pin clamp, coring pipe outer wall and is provided with spiral
Line, described corer is additionally provided with corer external screw thread, and the closure is provided with pin hole, and the corer is connected on fluted drill
Bar one end, is fixed by pin clamp, and the corer connects coring bit by coring external pipe thread, and the twist drill rods will take
Core pipe and coring bit are delivered in drilling, and coring bit is cut coal borer and entered, and coal core enters in coring tube cavity, in coring pipe outer wall
Coal on spiral lamination discharge drilling rib, the coring tube cavity is filled after coal sample, quickly exited, the corer and core drill
Head is unloaded from twist drill rods, and the coring bit is backed out from corer, and the corer is changed closure and tightened, logical in underground
The pin hole crossed on the closure is desorbed, and determines the desorption of mash gas amount of coring coal sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720197163.2U CN206540716U (en) | 2017-03-02 | 2017-03-02 | Gas content fixed point sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720197163.2U CN206540716U (en) | 2017-03-02 | 2017-03-02 | Gas content fixed point sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206540716U true CN206540716U (en) | 2017-10-03 |
Family
ID=59941886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720197163.2U Expired - Fee Related CN206540716U (en) | 2017-03-02 | 2017-03-02 | Gas content fixed point sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206540716U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840756A (en) * | 2017-03-28 | 2017-06-13 | 安徽理工大学 | The sampling of down-hole coal bed gas bearing capacity fixed point drilling cuttings and gas bearing capacity computational methods |
| CN110470505A (en) * | 2019-08-26 | 2019-11-19 | 贵州大学 | A kind of portable gas explosion acquisition device of easy disassembly |
| CN110984980A (en) * | 2019-12-25 | 2020-04-10 | 重庆大学 | Coal mine underground drilling fixed-point airtight sampling device |
| CN111006900A (en) * | 2019-12-25 | 2020-04-14 | 重庆大学 | Drilling and fixed-point sampling device for coal seam gas content testing and coal seam sampling method |
| CN112098145A (en) * | 2020-10-27 | 2020-12-18 | 河南理工大学 | Device and method for drilling coal sample for eliminating thermal effect |
| CN112098145B (en) * | 2020-10-27 | 2024-10-29 | 河南理工大学 | Device and method for drilling and coal sampling by eliminating thermal effect |
-
2017
- 2017-03-02 CN CN201720197163.2U patent/CN206540716U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840756A (en) * | 2017-03-28 | 2017-06-13 | 安徽理工大学 | The sampling of down-hole coal bed gas bearing capacity fixed point drilling cuttings and gas bearing capacity computational methods |
| CN110470505A (en) * | 2019-08-26 | 2019-11-19 | 贵州大学 | A kind of portable gas explosion acquisition device of easy disassembly |
| CN110984980A (en) * | 2019-12-25 | 2020-04-10 | 重庆大学 | Coal mine underground drilling fixed-point airtight sampling device |
| CN111006900A (en) * | 2019-12-25 | 2020-04-14 | 重庆大学 | Drilling and fixed-point sampling device for coal seam gas content testing and coal seam sampling method |
| CN111006900B (en) * | 2019-12-25 | 2022-05-10 | 重庆大学 | Drilling and fixed-point sampling device for coal seam gas content testing and coal seam sampling method |
| CN112098145A (en) * | 2020-10-27 | 2020-12-18 | 河南理工大学 | Device and method for drilling coal sample for eliminating thermal effect |
| CN112098145B (en) * | 2020-10-27 | 2024-10-29 | 河南理工大学 | Device and method for drilling and coal sampling by eliminating thermal effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20190302 |