CN201210117Y - Fixed-point sampler for coal and gas protrudent forecast - Google Patents
Fixed-point sampler for coal and gas protrudent forecast Download PDFInfo
- Publication number
- CN201210117Y CN201210117Y CNU2008200710585U CN200820071058U CN201210117Y CN 201210117 Y CN201210117 Y CN 201210117Y CN U2008200710585 U CNU2008200710585 U CN U2008200710585U CN 200820071058 U CN200820071058 U CN 200820071058U CN 201210117 Y CN201210117 Y CN 201210117Y
- Authority
- CN
- China
- Prior art keywords
- outer tube
- coal
- drill bit
- sampling
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a fixed spot sampler for coal and gas projection prediction, which comprises a drill bit rod, a sampling body, a connecting rod and a spiral sheet. A square hoe is arranged in the front of the drill bit rod and is used for arranging the drill bit; the rear end of the drill bit is connected with the front end of the sampling body; the sampling body consists of an inner tube, an outer tube and a coal collection plate; the outer tube is sleeved outside the inner tube; the inner tube and the outer tube are provided with a plurality of sampling openings at the corresponding positions; a coal collection plate is arranged at one side with the sampling openings of the outer tube; an annular groove is arranged at the end of the outer tube and is used for positioning; a positioning bolt which is fixed on the inner tube is arranged in the annular groove; and the rear end of the sampling body is fixedly connected with the connecting rod. The utility model has the advantages of high sampling accuracy, reliability and the like.
Description
Technical field:
The utility model belongs to colliery coal and gas outburst prevention treatment technical field.
Background technology:
Coal and gas are outstanding to be one of the major disaster in colliery." safety regulations in coal mine " the 177th and " control coal and the outstanding detailed rules and regulations of gas " the 2nd regulation " exploit when projecting coal bed, must take to comprise outburst hazard prediction, the outstanding measure of control, control give prominence to the validity check of measure, the aggregate measures of safety prevention measure ".When carrying out outburst prediction, need sample to the coal of predetermined depth in the coal seam, i.e. spot sampling, but up to now, still none can realize the kit of outburst prediction spot sampling technology.
Because can't be implemented in taking-up coal sample in precalculated position in the coal seam, the method for collecting drilling cuttings in the prediction aperture is generally adopted in current outburst prediction work, this method ten minutes is science not.Three problems of main existence: the one, the sampling location is inaccurate.The ickings of collecting in the aperture can not be the coal sample of which degree of depth certainly.The 2nd, it is impure to sample.The coal of foot of hole fragmentation is mixed with the remaining ickings of boring to the process in aperture by the outside migration of drilling rod, so the drilling cuttings that receives in the aperture is not the coal sample in the desired precalculated position of outburst prediction.The 3rd, sampling timing uncertainty is true.Ickings is collected in the aperture, and because of the distance of foot of hole to the aperture changes, the ickings migration time can't be determined, causes sampling timing uncertainty true.
For above-mentioned reasons, cause the outburst prediction parameter error, have the time error may be bigger, predict the outcome, cause erroneous judgement to cause security incident easily, be difficult to guarantee the accuracy and the reliability of outburst prediction with actual inconsistent.
The utility model content:
Order of the present utility model provided a kind of efficient height, easy to operate, can be in coal body arbitrarily the precalculated position gather fixed point coal sample, accuracy, higher coal and the gas outbursts Prediction fixed point sampler of reliability.
To achieve these goals, the utility model comprises: drill bit shaft, the sampling body, connecting link and flight, the drill bit shaft front end is shaped on square hole, be used to install drill bit, the drill bit shaft rear end is connected with sampling body front end, the sampling body is by interior pipe, outer tube and collection coal plate constitute, outer tube sleeve is outside interior pipe, at interior pipe, position corresponding on the outer tube is provided with some sample taps, and collection coal plate is set in outer tube sample tap one side, having driven a ring groove in the end of outer tube and be used for the location, be provided with a fixing dog screw on inner pipe in the ring groove, fixedlys connected with connecting link in sampling body rear end.
During sampling, drill bit is installed in the front end of drill bit shaft, connecting link and drilling rod are connected, drilling rod drives the utility model forward rotation by connecting link, the sample tap closure, and drilling cuttings is normally discharging under the effect of flight.When drilling to the precalculated position, stop to creep into, the drilling rod that reverses then drives in the sampling body pipe and outer tube and staggers and rotates, and sample tap is opened simultaneously, and the collection coal plate interior drilling cuttings of will hole is scraped into the interior coal storage chamber of managing as coal sample by sample tap.Reverse after a few, just change again, close sample tap, last, extract drilling rod, take off and open sampler, pour out and collect coal sample, so the coal sample drilling cuttings that receives is the coal sample in the desired precalculated position of outburst prediction.By the degree of depth of control drilling rod, can in coal body, gather the fixed point coal sample in any precalculated position, have sampling accuracy, reliability than characteristics such as height.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment:
As shown in Figure 1, of the present utility model comprising: drill bit shaft 1, sampling body 2, connecting link 6 and flight 11, drill bit shaft 1 front end is shaped on square hole, is used to install drill bit.The sampling body is made of interior pipe 10, outer tube 9 and collection coal plate 3, and outside the pipe 10, interior external diameter of pipe equated with outer tube diameter to fixedly connected with the interior pipe of sampling body front end in drill bit shaft 1 rear end in outer tube 9 was enclosed within.Position corresponding on interior pipe, outer tube is provided with some sample taps 8, and collection coal plate 3 is set in outer tube sample tap one side, interior pipe, outer tube are hollow rod member, and interior tube chamber can be scraped drilling cuttings in the coal storage chamber as coal sample by sample tap as the coal storage chamber that coal sample stores.Drive a ring groove 5 in the end of outer tube and be used for the location, be provided with a fixing dog screw 4 on inner pipe in the ring groove, this screw is except the position of fixing interior pipe and outer tube, and in ring groove, rotate by screw, can drive outer tube rotates forward or backwards with interior pipe, when being rotated in the forward, interior pipe, the outer tube closed sample tap that staggers mutually, on the contrary sample tap is opened in pipe, outer tube alignment then.The interior pipe of sampling body rear end is fixedlyed connected with connecting link 6, is used for being connected and fixed with drilling rod, and transmits moment of torsion.Connecting link 6 is provided with pin 7, is used to guarantee that connecting link is connected with drilling rod reliably, and flight 11 is welded on drill bit shaft 1 and sampling external body, discharges drilling cuttings when being used to drill.The utility model can be made series of products according to the specification of rig.
Claims (1)
1, coal and gas outbursts Prediction fixed point sampler, comprise: drill bit shaft (1), sampling body (2), connecting link (6) and flight (11), drill bit shaft (1) front end is shaped on square hole, be used to install drill bit, drill bit shaft (1) rear end is connected with sampling body front end, it is characterized in that taking a sample body by interior pipe (10), outer tube (9) and collection coal plate (3) constitute, outer tube (9) is enclosed within outside the interior pipe (10), at interior pipe, position corresponding on the outer tube is provided with some sample taps (8), and outer tube sample tap one side be provided with the collection coal plate (3), drive a ring groove (5) in the end of outer tube and be used for the location, being provided with a fixing dog screw (4) on inner pipe in the ring groove, fixedlys connected with connecting link (6) in sampling body rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200710585U CN201210117Y (en) | 2008-06-17 | 2008-06-17 | Fixed-point sampler for coal and gas protrudent forecast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200710585U CN201210117Y (en) | 2008-06-17 | 2008-06-17 | Fixed-point sampler for coal and gas protrudent forecast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210117Y true CN201210117Y (en) | 2009-03-18 |
Family
ID=40480856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200710585U Expired - Fee Related CN201210117Y (en) | 2008-06-17 | 2008-06-17 | Fixed-point sampler for coal and gas protrudent forecast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210117Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103041A (en) * | 2011-01-10 | 2011-06-22 | 河南理工大学 | On-site sealed sampling device for coal bed gas |
| CN105372101A (en) * | 2015-12-21 | 2016-03-02 | 河北工程大学 | Mine gas sampling device |
| CN105403439A (en) * | 2015-12-21 | 2016-03-16 | 河北工程大学 | Coal seam gas sampling device |
| 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 |
| CN106979871A (en) * | 2017-05-19 | 2017-07-25 | 董晶龙 | A kind of product quality detection material sampler and its application method |
| CN108443698A (en) * | 2018-05-15 | 2018-08-24 | 湖南科技大学 | A kind of colliery scene coal sample gas pot |
-
2008
- 2008-06-17 CN CNU2008200710585U patent/CN201210117Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103041A (en) * | 2011-01-10 | 2011-06-22 | 河南理工大学 | On-site sealed sampling device for coal bed gas |
| CN102103041B (en) * | 2011-01-10 | 2012-07-25 | 河南理工大学 | On-site sealed sampling device for coal bed gas |
| CN105372101A (en) * | 2015-12-21 | 2016-03-02 | 河北工程大学 | Mine gas sampling device |
| CN105403439A (en) * | 2015-12-21 | 2016-03-16 | 河北工程大学 | Coal seam gas sampling device |
| CN105372101B (en) * | 2015-12-21 | 2019-04-02 | 河北工程大学 | A kind of mine gas sampling apparatus |
| 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 |
| CN106979871A (en) * | 2017-05-19 | 2017-07-25 | 董晶龙 | A kind of product quality detection material sampler and its application method |
| CN108443698A (en) * | 2018-05-15 | 2018-08-24 | 湖南科技大学 | A kind of colliery scene coal sample gas pot |
| CN108443698B (en) * | 2018-05-15 | 2024-05-17 | 湖南科技大学 | Coal sample gas tank for coal mine site |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201210117Y (en) | Fixed-point sampler for coal and gas protrudent forecast | |
| Finger et al. | Handbook of best practices for geothermal drilling | |
| CN102103041B (en) | On-site sealed sampling device for coal bed gas | |
| CN111912661A (en) | Asteroid bores gets sampling device | |
| CN103760005B (en) | A kind of deep well drilling Rock And Soil intensity distributions proving installation | |
| CN103969082B (en) | For taking the sampler of the flour sand undisturbed polluted | |
| CN201326415Y (en) | Direct-push type sampling drilling machine with hydraulic vibration impactor | |
| CN109630045A (en) | The multi-functional full well section dynamic circulation experimental system for simulating of drilling well | |
| CN104330280B (en) | A kind of gear type soil sampling device and the method for sampling thereof | |
| CN204716234U (en) | A kind of ground sampling hole device | |
| CN111238871A (en) | Heavy metal soil stratified sampling device convenient to keep apart contrast | |
| CN106840756A (en) | The sampling of down-hole coal bed gas bearing capacity fixed point drilling cuttings and gas bearing capacity computational methods | |
| CN106761496A (en) | The drilling and completing fluids of automatic pulverizing inside drift backflow groove | |
| CN109443859A (en) | A kind of negative pressure low temperature coal seam gas-bearing capacity measurement sampler | |
| CN202325483U (en) | Drilling depth metering device | |
| US20110266066A1 (en) | Dry drilling and core acquisition system | |
| CN209145588U (en) | For simulating the multifunctional experiment system of the full well section dynamic circulation of drilling well | |
| CN208506279U (en) | A kind of auger underground water level detecting device | |
| CN201851056U (en) | Sleeve pipe window opening orientation device of radial horizontal well | |
| CN215256041U (en) | Rope coring type drilling tool for geological drilling | |
| CN201909723U (en) | In-situ hermetical coal bed gas sampler | |
| CN112268734A (en) | Portable highway engineering soil sampling device | |
| CN209457882U (en) | A kind of augers automatic braking device | |
| CN209485791U (en) | A kind of negative pressure low temperature coal seam gas-bearing capacity measurement sampler | |
| CN106640064A (en) | Rock sample extraction device and method for logging tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20120617 |