CN107227954A - A kind of goaf coal spontaneous combustion three is with rapid scan and analysis method - Google Patents
A kind of goaf coal spontaneous combustion three is with rapid scan and analysis method Download PDFInfo
- Publication number
- CN107227954A CN107227954A CN201710568366.2A CN201710568366A CN107227954A CN 107227954 A CN107227954 A CN 107227954A CN 201710568366 A CN201710568366 A CN 201710568366A CN 107227954 A CN107227954 A CN 107227954A
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- China
- Prior art keywords
- gas
- coal
- drilling rod
- goaf
- drilling
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/084—Obtaining fluid samples or testing fluids, in boreholes or wells with means for conveying samples through pipe to surface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
Abstract
The invention discloses a kind of goaf coal spontaneous combustion three with rapid scan and analysis method, comprise the following steps：Drilled moving towards the position at the 50m of direction selected distance working face 30 to goaf coal and rock, drilling vertical height is arranged on position of the rib at bottom plate 1.5m, 35 ° of inclination angle；When drilling rod enters goaf coal and rock inside 10m position, stop drilling, carry out thermometric, take gas；Said process is repeated afterwards to continue to drill, 10m is often crept into, then carries out thermometric, take gas, until oxygen concentration is less than after 5% when drilling rod enters 50m inside the coal and rock of goaf or in monitoring gas, terminates to drill；Gas in coal and rock air bag around the different depth of collection is injected into gas chromatograph and carries out gas analysis, record analysis data.Measuring speed of the present invention is fast, location flexible, arrangement measuring point is convenient, and personnel need not enter hazardous area, it is ensured that the safety of tester, and save cost.
Description
Technical field
Judge field the present invention relates to coal mine gob spontaneous fine seam, and in particular to a kind of band of goaf coal spontaneous combustion three
Rapid scan and analysis method.
Background technology
Coal spontaneous combustion fire is one of five big disasters for facing of underground coal mine exploitation, with Circumstances of Coal Mining complexity and
The continuous expansion of scale, the disaster degree of mine coal freely burning fire causes have substantial amounts of working face every year also in increase
Closed because of fire.Goaf coal spontaneous combustion three is that to divide goaf coal spontaneous combustion danger zone must be mined out through approach with observation
The necessary condition of area's coal spontaneous combustion prevention technique, the observation procedure of the existing band of coal mine gob three is advance when coal work is carried out
It is embedded it is a series of take feed channel, after coal work is finished, after roof caving after withdrawing hydraulic support, according to from pre-plugged
Pipeline in the gas that extracts and analyze the data obtained by gas componant to judge the substantially distribution of the band of goaf three.But this
The method of kind traditional advance pipe laying of use has many shortcomings, advance pipe laying cause in roof caving piping failure, blocking,
Even pipeline break；Pipe laying cost and arrangement Tube Bundle Monitoring System cost are high；Point position is relatively fixed, it is impossible to flexible cloth
Put；Observation cycle length (is more than 1 month)；Personnel need to enter danger zone detection under special circumstances, dangerous high.
The content of the invention
To solve the above problems, the invention provides a kind of goaf coal spontaneous combustion three with rapid scan and analysis method, surveying
Measure speed soon, only need that the three band scopes in a goaf can have been surveyed within 3-5 days；Flexibly, arrangement measuring point is convenient, and personnel are not required to for location
To enter hazardous area, it is ensured that the safety of tester；The instrument and equipment utilized is reusable, saves cost.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of goaf coal spontaneous combustion three comprises the following steps with rapid scan and analysis method：
Drill bit is connected with first paragraph drilling rod, the first drilling rod end is connected with rig, starts rig, moving towards direction
Position at selected distance working face 30-50m drills to goaf coal and rock, drillable length distance airtight wall 30-60m, drilling
Vertical height is arranged on position of the rib at bottom plate 1.5m, 3-5 ° of inclination angle, along coal seam direction goaf construction drill；Work as brill
When bar enters 10m position inside the coal and rock of goaf, stop drilling, carry out thermometric, take gas；Said process is repeated afterwards to continue
Drill, often creep into 10m, then carry out thermometric, take gas, until drilling rod enter goaf coal and rock inside 50m when or monitoring gas
Middle oxygen concentration is less than after 5%, terminates to drill；Gas in coal and rock air bag around the different depth of collection is injected into gas
Gas analysis, record analysis data are carried out in chromatography.
Wherein, during drilling, clear water is passed through out of drilling rod, by drill bit flushing drilling cuttings, the mixed solution of drilling cuttings and water leads to
Cross the discharge of the space between drilling rod and coal and rock；When first paragraph drilling rod will be completely into coal and rock, rig and first paragraph are bored
Bar is separated, and one end of second segment drilling rod is connected with the end of first paragraph drilling rod, then by the end of second segment drilling rod and rig
It is connected, continues drilling.
Wherein, during drilling construction to goaf 10m positions, stop construction, connect sebific duct and deliver to 10 under drilling rod protection
At rice, find time in advance not less than 15min, the gas in drilling is acquired with negative pressure sucking pump, temperature sensing is then penetrated
Device, is measured to temperature in drill hole.
Wherein, thermometric is completed by following steps：
When drilling rod enters goaf coal and rock 10m, stop drilling, final section drilling rod is separated with rig, will connect
Good temperature sensor and data line is fitted into metal threading flexible pipe and fixed, is together fed through drill bit along drilling rod center
Place, after recording the data that temperature indicator is shown after temperature stabilization, repeating said process can measure at 20m, 30m, 40m and 50m
The temperature data of surrounding coal and rock.
Wherein, complete to take gas by following steps：
After temperature has been surveyed, temperature measuring equipment is taken out, metal threading flexible pipe is fed through at drill bit along drilling rod center, will
Take feed channel rear end to connect a metal hose joint, one section of PVC sebific duct, the opposite side and gas of sebific duct are connected in the other end of joint
Sampler body pump is connected, and connection, which is finished, to be evacuated；After pumping 15 minutes, air bag is connected to gas samping pump rear end and enters promoting the circulation of qi
Body is collected；Collect after gas, removed air bag and sealed, gas componant is determined by ground, repeating said process can obtain
The gas sample of surrounding coal and rock at 20m, 30m, 40m and 50m.
Wherein, using rock drill, from D38/27 hollow drills.
The invention has the advantages that：
(1) measuring speed is fast.In the past traditional pipe laying method time of measuring is long, and this method only needs 3-5 days can survey one
The three band scopes in goaf；
(2) location is flexible.This method is easy to operate, and bore position progress drilling can be chosen at the arbitrary height of goaf and is taken
Gas so that survey gas scope and become big, the shortcoming that the gas of single position is analyzed can only be extracted in the past by changing；
(3) arrangement measuring point is convenient.This method takes the mode of drilling to carry out thermometric, takes gas, and personnel need not enter hazardous area,
It ensure that the safety of tester；
(4) instrument and equipment that this method is utilized is reusable, solves and takes feed channel may be due to top in the past
Plate is caving the problem of the loss such as cause piping failure, scrap, and saves cost.
(5) it this method solve the problem of the easy plugging of pipeline.
Brief description of the drawings
Fig. 1 is the rig overall structure figure used in the embodiment of the present invention.
Profile Fig. 2 is creeps into the embodiment of the present invention when.
Fig. 3 is profile when taking gas in the embodiment of the present invention.
Fig. 4 is the profile in the embodiment of the present invention during thermometric.
Top view Fig. 5 is creeps into the embodiment of the present invention when.
In figure：1- drill bits；2- first paragraph drilling rods；3- second segment drilling rods；4- three sections of drill pipe；5- drill rod threads；6- drilling tails；
7- rigs；8- coal and rocks；9- clear water；10- water and drilling cuttings mixed solution；11- metal hose joints；12- sebific ducts；13- takes air pump
Air hatch；14- negative pressure sucking pumps；15- takes air pump gas outlet；16- air bags；17- gases to be taken；18- temp probes；19- data
Line；20- temperature measuring gauges；21- fire dams；22- goafs.
Embodiment
In order that objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
As shown in figure 1, rig used in the embodiment of the present invention include being sequentially connected drill bit 1, first paragraph drilling rod 2,
Second segment drilling rod 3, three sections of drill pipe 4, drill rod thread 5, drilling tail 6 and rig 7.
As described in Fig. 2-5, the embodiments of the invention provide a kind of goaf coal spontaneous combustion three with rapid scan and analysis method,
Comprise the following steps：
1) move towards the position at the selected distance working face 30-50m of direction to goaf coal and rock drill, drillable length away from
From fire dam 30-60m, drilling vertical height is arranged on position of the rib at bottom plate 1.5m, 3-5 ° of inclination angle, using rotary rock drill
Machine, from D38/27 hollow drills, along coal seam direction goaf construction drill；
2) during drilling construction to goaf 10m positions, stop construction, connect sebific duct and deliver to 10 meters under drilling rod protection
Place, finds time not less than 15min, the gas in drilling is acquired with negative pressure sucking pump in advance, then penetrates temperature sensing dress
Put, temperature in drill hole is measured；
3) temperature and gas in finishing drilling hole are determined, is continued according to 1) construction drill, when constructing to 20m, then stops applying
Work, is monitored according to the gentle body of trip temperature 2) is entered；
4) content in repeating 3), stops until drilling is deep to after oxygen concentration is less than 5% in 50m, or monitoring gas
Construction drill.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of goaf coal spontaneous combustion three is with rapid scan and analysis method, it is characterised in that comprise the following steps：
Drill bit is connected with first paragraph drilling rod, the first drilling rod end is connected with rig, starts rig, selected moving towards direction
Position at working face 30-50m drills to goaf coal and rock, and drillable length distance airtight wall 30-60m, drilling is vertical
Highly it is arranged on position of the rib at bottom plate 1.5m, 3-5 ° of inclination angle, along coal seam direction goaf construction drill；When drilling rod enters
When entering 10m position inside the coal and rock of goaf, stop drilling, carry out thermometric, take gas；Said process is repeated afterwards to continue to beat
Bore, often creep into 10m, then carry out thermometric, take gas, until when drilling rod enters 50m inside the coal and rock of goaf or monitoring in gas
Oxygen concentration is less than after 5%, terminates to drill；Gas in coal and rock air bag around the different depth of collection is injected into gas phase
Gas analysis, record analysis data are carried out in chromatograph.
2. a kind of goaf coal spontaneous combustion three as claimed in claim 1 is with rapid scan and analysis method, it is characterised in that drill
Kong Shi, is passed through clear water out of drilling rod, by drill bit flushing drilling cuttings, and the mixed solution of drilling cuttings and water passes through between drilling rod and coal and rock
Discharge in space；When first paragraph drilling rod will be completely into coal and rock, rig is separated with first paragraph drilling rod, by second segment drilling rod
One end be connected with the end of first paragraph drilling rod, then the end of second segment drilling rod is connected with rig, continues drilling.
3. a kind of goaf coal spontaneous combustion three as claimed in claim 1 is with rapid scan and analysis method, it is characterised in that drilling
When construction is to goaf 10m positions, stop construction, connect sebific duct and delivered under drilling rod protection at 10 meters, found time in advance not small
In 15min, the gas in drilling is acquired with negative pressure sucking pump, temperature detection device is then penetrated, to temperature in drill hole
It is measured.
4. a kind of goaf coal spontaneous combustion three as claimed in claim 1 is with rapid scan and analysis method, it is characterised in that pass through
Following steps complete thermometric：
When drilling rod enters goaf coal and rock 10m, stop drilling, final section drilling rod is separated with rig, by what is connected
Temperature sensor and data line are fitted into metal threading flexible pipe and fixed, are together fed through along drilling rod center at drill bit,
After recording the data that temperature indicator is shown after temperature stabilization, repeating said process can measure around at 20m, 30m, 40m and 50m
The temperature data of coal and rock.
5. a kind of goaf coal spontaneous combustion three as claimed in claim 1 is with rapid scan and analysis method, it is characterised in that pass through
Following steps complete to take gas：
After temperature has been surveyed, temperature measuring equipment is taken out, metal threading flexible pipe is fed through at drill bit along drilling rod center, gas will be taken
Rear end of pipeline connects a metal hose joint, connects one section of PVC sebific duct in the other end of joint, opposite side and the gas of sebific duct are adopted
Sample pump is connected, and connection, which is finished, to be evacuated；After pumping 15 minutes, air bag is connected to gas samping pump rear end and carries out gas receipts
Collection；Collected after gas, removed air bag and sealed, by ground determine gas componant, repeat said process can obtain 20m,
The gas sample of surrounding coal and rock at 30m, 40m and 50m.
6. a kind of goaf coal spontaneous combustion three as claimed in claim 1 is with rapid scan and analysis method, it is characterised in that use
Rock drill, from D38/27 hollow drills.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568366.2A CN107227954B (en) | 2017-07-08 | 2017-07-08 | Three-zone rapid observation and analysis method for spontaneous combustion of coal in goaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568366.2A CN107227954B (en) | 2017-07-08 | 2017-07-08 | Three-zone rapid observation and analysis method for spontaneous combustion of coal in goaf |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107227954A true CN107227954A (en) | 2017-10-03 |
| CN107227954B CN107227954B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710568366.2A Active CN107227954B (en) | 2017-07-08 | 2017-07-08 | Three-zone rapid observation and analysis method for spontaneous combustion of coal in goaf |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798649A (en) * | 2018-04-18 | 2018-11-13 | 中国矿业大学 | It is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment |
| CN110886618A (en) * | 2019-12-10 | 2020-03-17 | 阜新新纪煤矿科技所 | Working face goaf vertical spontaneous combustion three-zone test method and fire prevention technology |
| CN113720938A (en) * | 2021-08-31 | 2021-11-30 | 西安科技大学 | Device and method for analyzing gas composition change in coal drilling process |
Citations (5)
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| US5350018A (en) * | 1993-10-07 | 1994-09-27 | Dowell Schlumberger Incorporated | Well treating system with pressure readout at surface and method |
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2017
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Patent Citations (5)
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|---|---|---|---|---|
| US5350018A (en) * | 1993-10-07 | 1994-09-27 | Dowell Schlumberger Incorporated | Well treating system with pressure readout at surface and method |
| US20110315445A1 (en) * | 2008-10-16 | 2011-12-29 | Thrubit B.V. | Methods for Installling Sensors in a Borehole |
| CN104514577A (en) * | 2014-12-12 | 2015-04-15 | 中国矿业大学 | Method for efficiently treating spontaneous ignition of remaining coal in large area goaf of shallow-buried coal bed |
| CN104929677A (en) * | 2015-07-10 | 2015-09-23 | 淮南矿业(集团)有限责任公司 | Fire prevention measure rod |
| CN106437632A (en) * | 2016-11-09 | 2017-02-22 | 山西潞安矿业(集团)有限责任公司 | Coal ore long goaf zone Vans drainage method |
Non-Patent Citations (1)
| Title |
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| 潘宵: "高瓦斯厚煤层采空区瓦斯抽采技术研究", 《中国优秀硕士学位论文全文数据库 工程技术I辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798649A (en) * | 2018-04-18 | 2018-11-13 | 中国矿业大学 | It is a kind of for spontaneous combustionof coal temperature sensing with boring temperature measuring equipment |
| CN110886618A (en) * | 2019-12-10 | 2020-03-17 | 阜新新纪煤矿科技所 | Working face goaf vertical spontaneous combustion three-zone test method and fire prevention technology |
| CN113720938A (en) * | 2021-08-31 | 2021-11-30 | 西安科技大学 | Device and method for analyzing gas composition change in coal drilling process |
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| Publication number | Publication date |
|---|---|
| CN107227954B (en) | 2021-03-30 |
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