CN103115797B - A kind of colliery sealed sampling device and using method thereof - Google Patents
A kind of colliery sealed sampling device and using method thereof Download PDFInfo
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- CN103115797B CN103115797B CN201310062688.1A CN201310062688A CN103115797B CN 103115797 B CN103115797 B CN 103115797B CN 201310062688 A CN201310062688 A CN 201310062688A CN 103115797 B CN103115797 B CN 103115797B
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- sampler barrel
- drill bit
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- coal sample
- plug
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- 238000005070 sampling Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000003245 coal Substances 0.000 claims abstract description 45
- 238000005553 drilling Methods 0.000 claims abstract description 26
- 238000003795 desorption Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 10
- 241001133184 Colletotrichum agaves Species 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920006362 Teflon® Polymers 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 4
- 238000003556 assay Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
A kind of colliery sealed sampling device and using method thereof, belong to the sampler and using method thereof that measure gas bearing capacity.Its sampler comprises drill bit, supporting seat, sampling controller, sampler barrel, urceolus, joint, coal sample passage and gas passage; Drill bit is connected with urceolus by supporting seat, in supporting seat, be connected with sampling controller, is connected with joint, in urceolus, has sampler barrel at the rear portion of urceolus.Method is: drill the starting stage, and in boring drilling process, plenum interior presses wind not communicate with the external world; When boring reaches designed distance, stop drilling, continue to inject pressure wind in air chamber by air chamber passage, make coal sample channels open; At this moment drill again and just can make to be full of coal sample in sampler barrel; Then in piston channel, inject pressure wind, plug is blocked sampling nozzle, sampler barrel is sealed; Move back to bore and drilling rod is taken out, sampler barrel is unloaded, the valve on sampler barrel is connected with desorption of mash gas speed determinator, just can carry out on-the-spot gasresolution.
Description
Technical field
The present invention relates to a kind of sampler and the using method thereof that measure gas bearing capacity, particularly a kind of colliery sealed sampling device and using method thereof.
Background technology
Coal seam gas-bearing capacity is the basis calculating gas reserves and gas emission, is also one of important parameter of forecasting coal and gas outburst risk, so Accurate Determining coal seam gas-bearing capacity is very important.The assay method of coal seam gas-bearing capacity is more, mainly contains exploratory boring coal core desorption method, workplace boring ickings desorption method, gas bearing capacity Y-factor method Y and High Pressure Absorption method.Wherein workplace boring ickings desorption method is one of conventional assay method.
When using hand drill to drill, ickings along with boring discharged by drilling rod along boring, then connects coal sample with coal sample tank, then carries out on-the-spot gasresolution; This sampling mode can make the ickings of boring deep and superficial part discharge together, thus the coal sample got can not ensure all from the raw coal at projected depth place, causes measurement inaccurate.When carrying out wearing layer and drilling, drilling depth is very large, can be very long in the discharge process of coal sample, causes coal sample open-assembly time long, also can cause measure inaccurate.
Summary of the invention
Technical matters: the object of the invention is to the weak point overcome in prior art, provides that a kind of structure is simple, the colliery sealed sampling device of good sealing effect and using method thereof.
Technical scheme: the object of the present invention is achieved like this: colliery sealing sampling comprises sampler and using method thereof, and its sampler comprises drill bit, supporting seat, sampling controller, sampler barrel, urceolus, joint, coal sample passage and gas passage; Drill bit is connected with urceolus by supporting seat, in supporting seat, be connected with sampling controller, is connected with joint, in urceolus, has sampler barrel at the rear portion of urceolus.
Described drill bit has four drill lips, and have a drill bit through hole in the middle of drill bit, drill bit through hole is boss shape; Drill bit through hole is large near drill lip side diameter, and opposite side diameter is little.
Described coal sample passage comprises: drill bit through hole, slider throughbores and sampling nozzle; Drill bit through hole sampling nozzle communicates, and slider throughbores is between drill bit through hole sampling nozzle;
Described sampling controller comprises slide block, air chamber and spring, slide block has a through hole, and be air chamber between drill bit and sampler barrel, air chamber communicates with air chamber passage, and slide block is positioned at air chamber, is connected with spring in one end of slide block.
There is the gentle mouth of a sampling nozzle front end of sampler barrel, and sampling nozzle is positioned at the center of sampler barrel, has a plug corresponding with sampling nozzle in sampler barrel, and plug and sampling nozzle are all in boss shape, and plug is connected with piston rod; The other end of piston rod is piston, piston is positioned at piston guide rail, piston rod there is an elastic steel sheet, elastic steel sheet is near sampling nozzle side, distance between piston upper surface is slightly larger than the distance between plug top to sampling nozzle, fluted on piston electronic rail inwall, elastic steel sheet will embed in groove.
Have two gas passages in joint, a gas passage communicates with air chamber passage, and another gas passage communicates with piston channel; There are two external threads joint one end, and the other end has an internal thread; By external thread, sampler barrel, urceolus can link together with joint; By internal thread, drilling rod can be connected with joint.
The using method of colliery sealed sampling device has three phases:
Preparatory stage: first assemble equipment, there are two external threads joint one end, and the other end has an internal thread; By external thread, sampler barrel, urceolus can link together with joint; By internal thread, drilling rod can be connected with joint; Sampler barrel, urceolus, drilling rod are connected on joint successively, then drill bit is connected with urceolus;
Drill the stage: drill, when not reaching projected depth, air chamber does not inject pressure wind, and under the action of the spring, slide block is to the skew of air chamber side, and slide block is by coal sample passage to shutting, and coal sample passage is obstructed; When boring reaches designed distance, stop drilling, continue to inject pressure wind in air chamber by air chamber passage; Now, piston is pressed towards opposite side, and drill bit through hole communicates with slider throughbores, thus makes coal sample channels open; At this moment, again spud in, in drilling process, coal sample will enter sampler barrel; After creeping into certain distance, in sampler barrel, also coal sample can be full of; Then in piston channel, inject pressure wind, stop to bore, stop in air chamber, inject pressure wind, under the effect of pressure wind, piston is pushed forward, and drive piston rod to move forward, and then plug moves simultaneously; When plug dieback is when sampling nozzle, elastic steel sheet will embed in groove, and control plug rollback, seals sampler barrel;
On-the-spot resolution phase: move back brill, takes out drilling rod, sampler barrel is unloaded, is connected by the valve on sampler barrel with desorption of mash gas speed determinator, just can carry out on-the-spot gasresolution.
Beneficial effect, owing to have employed such scheme,
(1), when drill bit does not arrive projected depth, air chamber does not inject pressure wind, under the action of the spring, slide block offsets to air chamber side, thus slide block by coal sample passage to shutting, thus can ensure that boring is not when reaching projected depth, coal sample can not enter sampler barrel.
(2) sampler barrel has an opening, have a plug corresponding with it inside sampler barrel, plug and sampling nozzle are all in boss shape, and both can closely cooperate; Plug is made up of teflon, and plug is connected with piston rod; The other end of the bar of piston is piston, piston can move in guide rail, piston rod there is an elastic steel sheet, distance between steel disc to piston upper surface (near sampling nozzle side) is slightly larger than the distance between plug top to sampling nozzle, because plug has certain elasticity, plug can be made can better to seal with sampling nozzle.
(3) when injecting pressure wind in piston channel, under the promotion of gases at high pressure, piston is pushed forward and moves, and drive piston rod to move forward, and then plug moves; When plug dieback is when sampling nozzle, steel disc will embed in groove, control plug rollback, thus is sealed by sampler barrel.
Advantage: apparatus structure provided by the invention is simple, good sealing effect, measurement are accurate, and method is simple, convenient operation.
(1) press wind to control the movement of slide block by air chamber passage, thus the folding of coal sample passage can be controlled, and then achieve the automatic control of sampling.
(2) piston rod has an elastic steel sheet, after sampling terminates, elastic steel sheet is under the effect of pressure wind, and elastic steel sheet can embed in the groove of piston guide rail; Meanwhile, the distance between elastic steel sheet to piston upper surface is slightly larger than the distance between plug top to sampling nozzle, and plug so just can be made to seal sampler barrel better.
(3) there are two external threads joint one end, and the other end has an internal thread; By external thread, sampler barrel, urceolus can link together with joint; By internal thread, drilling rod can be connected with joint.Be convenient to the assembling of device like this, the simple operations of implement device.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention.
Fig. 2 is the partial enlargement structural drawing at A place in Fig. 1.
Fig. 3 is the sectional structure chart at B-B place in Fig. 1.
Fig. 4 is the structural drawing of joint of the present invention.
In figure: 1, drill bit; 2, drill lip; 3, drill bit through hole; 4, slider throughbores; 5, spring; 6, air chamber; 7, slide block; 8, supporting seat; 9, valve; 10, sampler barrel; 11, piston guide rail; 12, piston; 13, piston rod; 14, nozzle is sampled; 15, plug; 16, urceolus; 17, joint; 18, air chamber passage; 19, piston channel; 20, groove; 21, elastic steel sheet.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Embodiment 1: colliery sealing sampling comprises sampler and using method thereof, and its sampler comprises drill bit 1, supporting seat 8, sampling controller, sampler barrel 10, urceolus 16, joint 17, coal sample passage and gas passage 18; Drill bit 1 is connected with urceolus 16 by supporting seat 8, in supporting seat 8, be connected with sampling controller, is connected with joint 17 at the rear portion of urceolus 16, has sampler barrel 10 in urceolus 16.
Described drill bit 1 has four drill lips 2, and have a drill bit through hole 3 in the middle of drill bit 1, drill bit through hole 3 is boss shape; Drill bit through hole 3 is large near drill lip 2 side diameter, and opposite side diameter is little, is convenient to ickings like this and passes through.
Described coal sample passage comprises: drill bit through hole 3, slider throughbores 4 and sampling nozzle 14; Drill bit through hole 3 samples nozzle 14 and communicates, and slider throughbores 4 samples between nozzle 14 at drill bit through hole 3.
Described sampling controller comprises slide block 7, air chamber 6 and spring 5, slide block 7 has a through hole, and be air chamber 6 between drill bit 1 and sampler barrel 10, air chamber 6 communicates with air chamber passage 18, and slide block 7 is positioned at air chamber 6, is connected with spring 5 in one end of slide block; Slide block 7 is made up of teflon; By injecting pressure wind in air chamber, slide block 7 is moved to the side that pressure is little, thus drill bit through hole 3 is communicated with slider throughbores 4, coal sample just can enter in sampler barrel 10 by passage thus; When drill bit does not arrive projected depth, air chamber does not inject pressure wind, and under the effect of spring 5, slide block 7 is to the skew of air chamber 6 side, thus slide block 7 can by coal sample passage to shutting.Drill in process initial, coal sample passage is obstructed.
There are a sampling nozzle 14 and valve 9 in the front end of sampler barrel 10, and sampling nozzle 14 is positioned at the center of sampler barrel, has a plug 15 corresponding with sampling nozzle 14 in sampler barrel 10, and plug 15 and sampling nozzle 14 are all in boss shape, and both can closely cooperate.Plug 15 is made up of teflon, and plug 15 is connected with piston rod 13; The other end of piston rod 13 is pistons 12, piston 12 is positioned at piston guide rail 11, piston can move in piston guide rail 11, piston rod 13 there is an elastic steel sheet 21, elastic steel sheet 21 is near sampling nozzle side, distance between piston upper surface is slightly larger than the distance between plug top to sampling nozzle, because plug 15 has certain elasticity, plug 15 can be made can better to seal with sampling nozzle 14; When injecting pressure wind in piston channel 19, under the promotion of gases at high pressure, piston 12 is pushed forward and moves, and drive piston rod 13 to move forward, and then plug 15 moves.On piston electronic rail 11 inwall fluted 20, when plug 15 dieback is when sampling nozzle 14, elastic steel sheet 21 will embed in groove 20, control plug 15 rollback, thus is sealed by sampler barrel 10.
Have two gas passages in joint 17, a gas passage communicates with air chamber passage 18, and another gas passage communicates with piston channel 19; There are two external threads joint one end, and the other end has an internal thread; By external thread, sampler barrel 10, urceolus 16 can link together with joint; By internal thread, drilling rod can be connected with joint.Joint plays the effect connecting sampler and drilling rod.
The using method of colliery sealed sampling device has three phases:.
Preparatory stage: first assemble equipment, there are two external threads joint 17 one end, and the other end has an internal thread.By external thread, sampler barrel 10, urceolus 16 can link together with joint 17; By internal thread, drilling rod can be connected with joint 17.Sampler barrel 14, urceolus 16, drilling rod are connected on joint 17 successively, then drill bit 1 is connected with urceolus 16.
Drill the stage: drill, when not reaching projected depth, air chamber 6 does not inject pressure wind, and under the effect of spring 5, slide block 7 is to the skew of air chamber 6 side, and slide block 7 is by coal sample passage to shutting, and coal sample passage is obstructed.When boring reaches designed distance, stop drilling, continue to inject pressure wind in air chamber 6 by air chamber passage 18.Now, piston 12 is pressed towards opposite side, and drill bit through hole 3 communicates with slider throughbores 4, thus makes coal sample channels open.At this moment, again spud in, in drilling process, coal sample will enter sampler barrel 10.After creeping into certain distance, in sampler barrel 10, also coal sample can be full of.Then in piston channel 19, inject pressure wind, stop to bore, stop in air chamber 6, inject pressure wind, under the effect of pressure wind, piston 12 is pushed forward, and drive piston rod 13 to move forward, and then plug 15 moves simultaneously.When plug 15 dieback is when sampling nozzle 14, elastic steel sheet 21 will embed in groove 20, control plug 15 rollback, thus is sealed by sampler barrel 10.
On-the-spot resolution phase: move back brill, takes out drilling rod, sampler barrel 10 is unloaded, is connected by the valve 9 on sampler barrel 10 with desorption of mash gas speed determinator, just can carry out on-the-spot gasresolution.
Claims (2)
1. a colliery sealed sampling device, is characterized in that: this sampler comprises: drill bit, supporting seat, sampling controller, sampler barrel, urceolus, joint, coal sample passage and gas passage; Drill bit is connected with urceolus by supporting seat, in supporting seat, be connected with sampling controller, is connected with joint, in urceolus, has sampler barrel at the rear portion of urceolus;
Described drill bit has four drill lips, and have a drill bit through hole in the middle of drill bit, drill bit through hole is boss shape; Drill bit through hole is large near drill lip side diameter, and opposite side diameter is little, is convenient to ickings and passes through;
There is the gentle mouth of a sampling nozzle front end of described sampler barrel, sampling nozzle is positioned at the center of sampler barrel, has a plug corresponding with sampling nozzle in sampler barrel, and plug and sampling nozzle are all in boss shape, plug is made up of teflon, and plug is connected with piston rod; The other end of piston rod is piston, and piston is positioned at piston guide rail, piston rod has an elastic steel sheet, and elastic steel sheet is near sampling nozzle side, and the distance between piston upper surface is slightly larger than the distance between plug top to sampling nozzle; Fluted on piston guide rail inwall, elastic steel sheet can embed in groove; When injecting pressure wind in piston channel, under the promotion of gases at high pressure, piston is pushed forward and moves, drive piston rod moves forward, and then plug moves, when plug dieback is when sampling nozzle, elastic steel sheet will embed in groove, prevents plug rollback, thus is sealed by sampler barrel;
Described sampling controller comprises slide block, air chamber and spring, slide block has a slider throughbores, and be air chamber between drill bit and sampler barrel, air chamber communicates with air chamber passage, and slide block is positioned at air chamber, is connected with spring in one end of slide block;
Described coal sample passage comprises: drill bit through hole, slider throughbores and sampling nozzle; Drill bit through hole sampling nozzle communicates, and slider throughbores is between drill bit through hole sampling nozzle;
Slide block is made up of teflon; By injecting pressure wind in air chamber, slide block is moved to the side that pressure is little, thus drill bit through hole is communicated with slider throughbores, coal sample enters in sampler barrel by coal sample passage; When drill bit does not arrive projected depth, air chamber does not inject pressure wind, and under the action of the spring, slide block is to the skew of air chamber side, thus coal sample passage is shut by slide block, and drill in process initial, coal sample passage is obstructed;
Have two gas passages in described joint, a gas passage communicates with air chamber passage, and another gas passage communicates with piston channel; There are two external threads joint one end, and the other end has an internal thread; By external thread, sampler barrel, urceolus and joint link together; By internal thread, drilling rod is connected with joint, and joint plays the effect connecting sampler and drilling rod.
2. a using method for colliery as claimed in claim 1 sealed sampling device, is characterized in that: the using method of colliery sealed sampling device has three phases:
Preparatory stage: sampler barrel, urceolus, drilling rod are connected on joint successively, then drill bit is connected with urceolus;
Drill the stage: drill, when not reaching projected depth, air chamber does not inject pressure wind, and under the action of the spring, slide block is to the skew of air chamber side, and slide block is by coal sample passage to shutting, and coal sample passage is obstructed; When boring reaches designed distance, stop drilling, continue to inject pressure wind in air chamber by air chamber passage; Now, slide block is pressed towards opposite side, and drill bit through hole communicates with slider throughbores, thus makes coal sample channels open; At this moment, again spud in, in drilling process, coal sample will enter sampler barrel; After creeping into certain distance, in sampler barrel, also coal sample can be full of; Then in piston channel, inject pressure wind, stop to bore, stop in air chamber, inject pressure wind, under the effect of pressure wind, piston is pushed forward, and drive piston rod to move forward, and then plug moves simultaneously; When plug dieback is when sampling nozzle, elastic steel sheet will embed in groove, and control plug rollback, seals sampler barrel;
In the site desorption stage: move back brill, drilling rod is taken out, sampler barrel is unloaded, the valve on sampler barrel is connected with desorption of mash gas speed determinator, just can carry out on-the-spot desorption of mash gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310062688.1A CN103115797B (en) | 2013-02-28 | 2013-02-28 | A kind of colliery sealed sampling device and using method thereof |
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| CN201310062688.1A CN103115797B (en) | 2013-02-28 | 2013-02-28 | A kind of colliery sealed sampling device and using method thereof |
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| CN103115797A CN103115797A (en) | 2013-05-22 |
| CN103115797B true CN103115797B (en) | 2015-07-29 |
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| 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 |
| CN111579749B (en) * | 2020-05-11 | 2022-12-06 | 煤炭科学技术研究院有限公司 | Dynamic induction experimental method for coal and gas outburst |
| CN111735661B (en) * | 2020-07-03 | 2023-02-28 | 湖南铁道职业技术学院 | Intelligent micro-coal sample sampling mechanism and quantitative micro-coal sample sampling and weighing method |
| CN112253104A (en) * | 2020-08-26 | 2021-01-22 | 煤科集团沈阳研究院有限公司 | Sampling air water faucet and sampling method |
| CN112924223B (en) * | 2021-03-25 | 2022-03-01 | 中国矿业大学 | Drilling-sampling integrated device for fixed-point closed sampling of coal seam |
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| CN114278282B (en) * | 2021-12-16 | 2024-05-10 | 淮南矿业(集团)有限责任公司 | Double-pipe sampling device and method for underground coal mine |
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