CN107153062A - The detection means and detection method of a kind of coal and gas prominent - Google Patents
The detection means and detection method of a kind of coal and gas prominent Download PDFInfo
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- CN107153062A CN107153062A CN201710334719.2A CN201710334719A CN107153062A CN 107153062 A CN107153062 A CN 107153062A CN 201710334719 A CN201710334719 A CN 201710334719A CN 107153062 A CN107153062 A CN 107153062A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8405—Application to two-phase or mixed materials, e.g. gas dissolved in liquids
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Abstract
The present invention discloses the detection means and detection method of a kind of coal and gas prominent, and detection means includes high-speed camera, information collecting device and sample carrier；Sample carrier is placed in water bath with thermostatic control, sample carrier is used to load the coal sample with gas adsorption or the rock sample sample without gas adsorption, sample carrier connects temperature control equipment, pressure-control valve and high-precision pressure gauge respectively, and the temperature control equipment is made up of temperature controller and controlling switch；One end of sample carrier, which is fixedly connected on conical tube, conical tube, carries scale, and high-speed camera is arranged on right opposite at the opening of conical tube, and high-speed camera is connected with information collecting device；The instantaneous dynamometer of foil gauge is provided with inside conical bobbin.Detection method uses high speed imaging system, transport conditions, affecting laws and influencing mechanism in the treated coal and gas prominent evolution of comprehensive accurate recording, analysis of fluorescence dyestuff, transport characteristics information when more accurately, reliable extracting prominent weak spot and be prominent.
Description
Technical field
The present invention relates to a kind of detection means of coal and gas prominent and detection method, and in particular to one kind is taken the photograph based on high speed
Camera gathers the coal and gas prominent apparatus and method of information.Belong to the outburst hazard field of forecasting coal and gas.
Background technology
At present, coal and gas prominent is to cause one of principal element of mine disaster, and coal and gas prominent mechanism is China
The problem in science that highly gassy mine safety in production urgently breaks through, is the grand strategy demand and break through direction of national energy security.
Therefore Study on Coal and gas outburst mechanism（The migration of coal and gas）Its reason can fundamentally be understood and from more deep angle
Degree is solved the problems, such as.
Gas is mixed gas of the preservation formed by incoalation in coal seam based on methane, and coal and gas prominent is
Refer to coal production during from coal seam, rock stratum and goaf release various pernicious gases be enriched with working face and gush out so as to
Trigger the Coal Mine Disasters of gas explosion.
The mechanism that coal and gas prominent occurs is complicated with form, with the increase of coal mining depth, and exploitation
Condition is increasingly complicated, the generation also more difficult prediction of coal and gas prominent, and existing is mostly the detection to coal and gas prominent
The research of warning system, but it, which predicts the outcome, can not represent the outburst hazard of coal in whole estimation range completely, containing coal
Gas body is unstable in process of production, and the result obtained in prediction is static, and coal body can not be represented completely
The outburst hazard in whole period before stable.Current domestic and foreign scholars the study mechanism of coal and gas prominent has been obtained some into
Really, but most achievement is the hypothesis that field statistics data and laboratory research are proposed..
The content of the invention
The present invention is intended to provide a kind of simple in construction, the migration feelings that can record, analyze in coal and gas prominent evolution
The detection means and detection method of the coal and gas prominent of condition, affecting laws and influencing mechanism, using high speed imaging to coal with watt
This prominent development process carries out qualitative, quantitative description.
The invention provides a kind of detection means of coal and gas prominent, including high-speed camera, information collecting device with
And sample carrier；
The sample carrier is placed in water bath with thermostatic control, and the sample carrier can be used for the coal sample loaded with gas adsorption or not have
The rock sample sample of gas adsorption, sample carrier connects temperature control equipment, pressure-control valve and high-precision pressure gauge respectively, described
Temperature control equipment is made up of temperature controller and controlling switch；Pipe-line control valve door is also equipped with sample carrier；
One end of sample carrier, which is fixedly connected on conical tube, conical tube, carries scale, and high-speed camera is arranged on conical tube
Opening at right opposite, high-speed camera is connected with information collecting device, and computer data is used by high-speed camera imaging
Processing, you can calculate the volume of each moment protrusion of gas and the state of protrusion；Inside the graduated conical bobbin of band
Provided with the instantaneous dynamometer of foil gauge；The instantaneous dynamometer of foil gauge can determine the force value for strains of impact piece moment of producing coal, with reference at a high speed
The collision angle analysis of camera acquisition calculates the force value for spraying moment.
The graduated conical tube of described band, is connected with sample carrier, and one end of bobbin is thinner, and other end diameter compared with
Big, the coal and gas prominent run into real coal petrography recovery process and the process of release are fully reduced, is reduced
The other influences factor of data validity, validity in experimentation to experiment collection.
In said apparatus, the rock sample in all product sample carriers of muck has and the coal sample sample phase in sample carrier of coalingging
Density together, particle size, but without adsorptivity, progress coal and gas prominent simulated experiment is compared with rock sample sample, it is excluded
The interference of his factor, makes the conclusion of experiment more convincing.
In said apparatus, described high-precision pressure gauge, the digital pressure gauge of three after using accuracy for decimal point, to the greatest extent
The influence of error is likely to reduced, so as to the pressure in accurate recording sample carrier.
In said apparatus, described pressure-control valve can carry out pressure setting, reaching the predetermined of pressure sets to valve
When putting value, control valve is automatically turned on, and the gas in coal sample is protruded from its weak spot.
In said apparatus, described conical tube is made up of transparent organic material, be easy to high-speed camera to coal with watt
This protrudes the collection of the image information of transient state.
In said apparatus, the instantaneous dynamometer of described foil gauge is uniformly arranged in conical tube, and with conical tube
Axis direction is vertically arranged.
The invention provides a kind of detection method of coal and gas prominent, filled using the detection of above-mentioned coal and gas prominent
Put, it is characterised in that comprise the following steps：
Step 1, the selection of coal sample are with crushing：The coal sample in collection site coal seam is tightly encapsulated, and is crushed in laboratory, uses standard
Sieve and the coal sample after crushing is sieved, make the particle diameter of coal sample between 0.2-0.25mm；
Step 2, by fluorescent dye broken coal is dyed, obtain fluorescence coal, make what high-speed camera function became apparent from
Image information is gathered, the information of collection is more accurate, and identification is higher；
Step 3, coal sample is fitted into empty sample carrier, determining device through coal sample dead space is measured, the sample carrier that obtains coalingging is dead
SPACE VCoal is dead；
Step 4, instantaneous dynamometer is installed in conical tube, inspection system ensures the reliable of connection, and water bath with thermostatic control is adjusted to
30 DEG C of predetermined value；
The installation and debugging of step 5, high-speed camera：According to the experiment purpose and experiment scene drop target thing of setting, simultaneously
The video camera of IMAQ is exposed according to light intensity and gain adjustment, to reach the target of experiment；
Step 6, opening the first pipe-line control valve door are inflated with gas pressure reducer, after inflation is finished, will pass through the first pipeline
Control valve is filled with CH to sample carrier of coalingging with 1mL/min speed4Coal dust in high-pressure air source, the sample carrier that makes to coaling, which is in, to be inhaled
Attached poised state, when gas pressure reaches certain value in sample carrier, automatic pressure control valve door is opened moment, prominent coal with
Methane gas is discharged by being connected to the graduated circular cone bobbin of band of sample carrier one end；
Step 7, using high-speed camera visual imaging technology with multi-angle by the collision angle α of fluorescence coal, gas each protrusion
The collection of gas volume Q information, the transport conditions in comprehensive accurate recording coal and gas prominent evolution；
Step 8, the gas flow Q gathered in sample carrier of coalingging1It is sent to time t data in computerized information harvester,
Then Q-t figures are made；Gather the force value F on the instantaneous dynamometer at each moment；
Step 9. arranges experimental record, according to equation of state of real gas PV=nRTZ, and analysis meter counts evidence；According to fluorescence coal
The path analysis of collision angle α and collision rift calculates the force value F of prominent moment0 And angle [alpha] when prominent0 =α；
Step 10. replaces with the coal sample in sample carrier has identical density, particle size with coal sample, but without adsorptivity
Rock sample sample, makes the dead space of the sample carrier of all product of muck meet VRock is dead=VCoal is dead, repeat the above steps.
In above-mentioned detection method, described fluorescence coal is entered by fluorescent dye to coal of the particle diameter between 0.2-0.25mm
Row dyeing, can make coal show color, be easy to high-speed camera information, and not change other properties of coal after dyeing.
In above-mentioned detection method, the coal sample dead space, which determines device, includes U-tube, coaling sample carrier and methane high pressure gas
Source, the outlet of methane high-pressure air source is provided with the first pipe-line control valve door, and the pipeline that sample carrier of coalingging is connected with vavuum pump is provided with the
Two pipe-line control valves door, sample carrier of coalingging is connected with methane high-pressure air source and connecting pipe is provided with pressure-reducing valve；U-tube is by bottom
First straight tube of connection and the second straight tube composition, U-tube is adjusted by adjusting the relative altitude of the first straight tube and the second straight tube
The height of interior liquid level.It is provided with the 4th pipe-line control valve door, sample carrier of coalingging the communicating pipe of first straight tube and the second straight tube bottom
It is connected with the second straight tube of U-tube and it is opened and closed by the 3rd pipe-line control valve gate control；
Coal sample dead space assay method is：
200mL helium is collected by drainage first in U-tube（The original position of U-tube liquid level is 200）, fill in graduated cylinder
There is the helium to collect above red liquid, liquid.
Open vavuum pump to be de-gassed sample carrier of coalingging, degassing is coaling after finishing is in negative pressure state in sample carrier, closes
Close the second pipe-line control valve door；
The three, the 4th pipe-line control valves door of U-tube is opened, is now that the helium in negative pressure, graduated cylinder is made in negative pressure in sample carrier
It can be entered under in sample carrier, it is believed that helium occupies the dead space of sample carrier, the regulation straight tube of U-tube first and the second straight tube
Relative position so that during helium is entered the U-tube two ends liquid level moment keep maintain an equal level, if meniscus ends highly be VEventually,
It is exactly 200-V then to enter helium volume in sample carrierEventually（mL）；
When the helium in graduated cylinder does not enter back into sample carrier, the height of adjustment U-tube makes the straight tube of U-tube first and the second straight tube left
Right liquid level is consistent, closes the pipe-line control valve of U-tube the three, the 4th door, reads height where meniscus ends in U-tube, can
The volume of helium entered in sample carrier is obtained, as coaling sample carrier dead space VCoal is dead。
The coal that the high speed imaging system of the present invention, which is a kind of use machine vision imaging technology, treats fluorescent dye with
The transient state information collection of Gas Outburst, is intuitively reflected, comprehensive accurate recording, analysis of fluorescence dyestuff are treated with image
Coal and gas prominent evolution in transport conditions, affecting laws and influencing mechanism.This method based on high speed imaging,
Imaging process when completing prominent, transport characteristics information when more accurately, reliable extracting prominent weak spot and be prominent, for it
Image can be analyzed, and prominent process can be modeled.
Beneficial effects of the present invention：
The present invention using high-speed camera visual imaging technology by the information gathering of Gas Outburst position, it is intuitively anti-with image
Mirror and, transport conditions, affecting laws and influencing mechanism in comprehensive accurate recording, analysis coal and gas prominent evolution.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is sample carrier dead space of the invention（Remaining volume after the volume of sample tank volume removing coal sample）Determine
With CH4High-pressure air source schematic diagram.
Fig. 3 is change schematic diagrams of the gas flow Q in the sample carrier of the present invention with time t.
In figure：1 is high-speed camera, and 2 be information collecting device, and 3 be sample carrier, and 4 be water bath with thermostatic control, and 5 be temperature control
Device, 6 be controlling switch, and 7 be pressure-control valve, and 8 be high-precision pressure gauge, and 9 be conical tube, and 10 be the instantaneous dynamometry of foil gauge
Device, 11 be the first pipe-line control valve door, and 12 be high-pressure air source, and 13 be the second pipe-line control valve door, and 14 be vavuum pump, and 15 be decompression
Valve, 16 be the first straight tube, and 17 be the second straight tube, and 18 be the 4th pipe-line control valve door, and 19 be the 3rd pipe-line control valve door, and 20 be glimmering
Photo etching sample；A is water, and B is helium.
Embodiment
The present invention is further illustrated below by embodiment, but is not limited to following examples.
Embodiment：
A kind of detection means of coal and gas prominent, including high-speed camera 1, information collecting device 2 and sample carrier 3；
The sample carrier 3 is placed in water bath with thermostatic control 4, and the sample carrier 3 is available for the coal sample loaded with gas adsorption or not
Rock sample sample with gas adsorption, sample carrier 3 connects temperature control equipment, pressure-control valve 7 and high-precision pressure respectively
Table 8, the temperature control equipment is made up of temperature controller 5 and controlling switch 6；Pipe-line control valve door is also equipped with sample carrier 3；
One end of sample carrier 3, which is fixedly connected on conical tube 9, conical tube 9, carries scale, and high-speed camera 1 is arranged on circular cone
Right opposite at the opening of shape cylinder 9, high-speed camera 9 is connected with information collecting device 2, by the imaging of high-speed camera 9 with meter
Calculation machine data processing, you can calculate the volume of each moment protrusion of gas and the state of protrusion；The graduated cone of band
Barrel inner is provided with the instantaneous dynamometer 10 of foil gauge；The instantaneous dynamometer 10 of foil gauge can determine the power for strains of impact piece moment of producing coal
Value, the force value for spraying moment is calculated with reference to the collision angle analysis that high-speed camera 1 is gathered.
The graduated conical tube 9 of described band, is connected, one end of bobbin is thinner, and other end diameter with sample carrier 3
Larger, the coal and gas prominent run into real coal petrography recovery process and the process of release are fully reduced, is reduced
The other influences factor of data validity, validity in experimentation to experiment collection.
In said apparatus, the rock sample in all product sample carriers of muck has and the coal sample sample phase in sample carrier of coalingging
Density together, particle size, but without adsorptivity, progress coal and gas prominent simulated experiment is compared with rock sample sample, it is excluded
The interference of his factor, makes the conclusion of experiment more convincing.
In said apparatus, described high-precision pressure gauge 8, the digital pressure gauge of three after using accuracy for decimal point,
The influence of error is reduced as far as possible, so as to the pressure in accurate recording sample carrier.
In said apparatus, described pressure-control valve 7 can carry out pressure setting to valve, reach the predetermined of pressure
During arranges value, control valve is automatically turned on, and the gas in coal sample is protruded from its weak spot.
In said apparatus, described conical tube 9 is made up of transparent organic material, be easy to high-speed camera 1 to coal with
The collection of the image information of Gas Outburst transient state.
In said apparatus, the instantaneous dynamometer 10 of described foil gauge is uniformly arranged in conical tube 9, and and conical tube
9 axis direction is vertically arranged.
The invention provides a kind of detection method of coal and gas prominent, filled using the detection of above-mentioned coal and gas prominent
Put, it is characterised in that comprise the following steps：
Step 1, the selection of coal sample are with crushing：The coal sample in collection site coal seam is tightly encapsulated, and is crushed in laboratory, uses standard
Sieve and the coal sample after crushing is sieved, make the particle diameter of coal sample between 0.2-0.25mm；
Step 2, by fluorescent dye broken coal is dyed, obtain fluorescence coal, make what high-speed camera function became apparent from
Image information is gathered, the information of collection is more accurate, and identification is higher；
Step 3, coal sample is fitted into empty sample carrier, determining device through coal sample dead space is measured, the sample carrier that obtains coalingging is dead
SPACE VCoal is dead；
Step 4, instantaneous dynamometer is installed in conical tube, inspection system ensures the reliable of connection, and water bath with thermostatic control is adjusted to
30 DEG C of predetermined value；
The installation and debugging of step 5, high-speed camera：According to the experiment purpose and experiment scene drop target thing of setting, simultaneously
The video camera of IMAQ is exposed according to light intensity and gain adjustment, to reach the target of experiment；
Step 6, opening the first pipe-line control valve door are inflated with gas pressure reducer, after inflation is finished, will pass through the first pipeline
Control valve is filled with CH to sample carrier of coalingging with 1mL/min speed4Coal dust in high-pressure air source, the sample carrier that makes to coaling, which is in, to be inhaled
Attached poised state, when gas pressure reaches certain value in sample carrier, automatic pressure control valve door is opened moment, prominent coal with
Methane gas is discharged by being connected to the graduated circular cone bobbin of band of sample carrier one end；
Step 7, using high-speed camera visual imaging technology with multi-angle by the collision angle α of fluorescence coal, gas each protrusion
The collection of gas volume Q information, the transport conditions in comprehensive accurate recording coal and gas prominent evolution；
Step 8, the gas flow Q gathered in sample carrier of coalingging1It is sent to time t data in computerized information harvester,
Then Q-t figures are made；Gather the force value F on the instantaneous dynamometer at each moment；
Step 9. arranges experimental record, according to equation of state of real gas PV=nRTZ, and analysis meter counts evidence；According to fluorescence coal
The path analysis of collision angle α and collision rift calculates the force value F of prominent moment0 And angle [alpha] when prominent0 =α；
Step 10. replaces with the coal sample in sample carrier has identical density, particle size with coal sample, but without adsorptivity
Rock sample sample, makes the dead space of the sample carrier of all product of muck meet VRock is dead=VCoal is dead, repeat the above steps.
In above-mentioned detection method, described fluorescence coal is entered by fluorescent dye to coal of the particle diameter between 0.2-0.25mm
Row dyeing, can make coal show color, be easy to high-speed camera information, and not change other properties of coal after dyeing.
In above-mentioned detection method, the coal sample dead space, which determines device, includes U-tube, coaling sample carrier and methane high pressure gas
Source 12, the outlet of methane high-pressure air source 12 is provided with the first pipe-line control valve door 11, the pipeline that sample carrier of coalingging is connected with vavuum pump 14
Provided with the second pipe-line control valve door 13, sample carrier of coalingging is connected with methane high-pressure air source and connecting pipe is provided with pressure-reducing valve
15；The first straight tube 16 and the second straight tube 17 that U-tube is connected by bottom are constituted, by adjusting the first straight tube 16 and the second straight tube 17
Relative altitude adjust the height of liquid level in U-tube.The communicating pipe of first straight tube 16 and the bottom of the second straight tube 17 is provided with the
Four pipe-line control valves door 18, the second straight tube connection of coaling sample carrier and U-tube and is controlled by the 3rd pipe-line control valve door 19
It is opened and closed；
Coal sample dead space assay method is：
200mL helium is collected by drainage first in U-tube（The original position of U-tube liquid level is 200）, fill in graduated cylinder
There is the helium to collect above red liquid, liquid.
Open vavuum pump to be de-gassed sample carrier of coalingging, degassing is coaling after finishing is in negative pressure state in sample carrier, closes
Close the second pipe-line control valve door；
The three, the 4th pipe-line control valves door of U-tube is opened, is now that the helium in negative pressure, graduated cylinder is made in negative pressure in sample carrier
It can be entered under in sample carrier, it is believed that helium occupies the dead space of sample carrier, the regulation straight tube of U-tube first and the second straight tube
Relative position so that during helium is entered the U-tube two ends liquid level moment keep maintain an equal level, if meniscus ends highly be VEventually,
It is exactly 200-V then to enter helium volume in sample carrierEventually（mL）；
When the helium in graduated cylinder does not enter back into sample carrier, the height of adjustment U-tube makes the straight tube of U-tube first and the second straight tube left
Right liquid level is consistent, closes the pipe-line control valve of U-tube the three, the 4th door, reads height where meniscus ends in U-tube, can
The volume of helium entered in sample carrier is obtained, as coaling sample carrier dead space VCoal is dead。
Claims (9)
1. a kind of detection means of coal and gas prominent, it is characterised in that：Including high-speed camera, information collecting device and examination
Sample tank；
The sample carrier is placed in water bath with thermostatic control, the sample carrier be used for load with gas adsorption coal sample or without watt
The rock sample sample of this adsorptivity, sample carrier connects temperature control equipment, pressure-control valve and high-precision pressure gauge, the temperature respectively
Degree control device is made up of temperature controller and controlling switch；Pipe-line control valve door is also equipped with sample carrier；
One end of sample carrier, which is fixedly connected on conical tube, conical tube, carries scale, and high-speed camera is arranged on conical tube
Opening at right opposite, high-speed camera is connected with information collecting device；It is provided with inside the graduated conical bobbin of band
The instantaneous dynamometer of foil gauge.
2. the detection means of coal and gas prominent according to claim 1, it is characterised in that：The rock sample sample have with
Coal sample sample identical density, particle size, but without adsorptivity, progress coal and gas prominent simulation is compared with rock sample sample real
Test.
3. the detection means of coal and gas prominent according to claim 1, it is characterised in that：Described high-precision pressure
Table, the digital pressure gauge of three after using accuracy for decimal point.
4. the detection means of coal and gas prominent according to claim 1, it is characterised in that：Described pressure-control valve,
Pressure setting can be carried out to valve, when reaching the predetermined set value of pressure, control valve is automatically turned on, and makes watt in coal sample
This is protruded from its weak spot.
5. the detection means of coal and gas prominent according to claim 1, it is characterised in that：Described conical tube is by saturating
Bright organic material is made, and is easy to collection of the high-speed camera to the image information of coal and gas prominent transient state.
6. the detection means of coal and gas prominent according to claim 1, it is characterised in that：Described foil gauge is instantaneously surveyed
Power device is uniformly arranged in conical tube, and is vertically arranged with the axis direction of conical tube.
7. a kind of detection method of coal and gas prominent, using the inspection of the coal and gas prominent described in any one of claim 1 ~ 6
Survey device, it is characterised in that comprise the following steps：
Step 1, the selection of coal sample are with crushing：The coal sample in collection site coal seam is tightly encapsulated, and is crushed in laboratory, uses standard
Sieve and the coal sample after crushing is sieved, make the particle diameter of coal sample between 0.2-0.25mm；
Step 2, by fluorescent dye broken coal is dyed, obtain fluorescence coal, make what high-speed camera function became apparent from
Image information is gathered, the information more accurate, identification of collection is higher；
Step 3, coal sample is fitted into empty sample carrier, determining device through coal sample dead space is measured, the sample carrier that obtains coalingging is dead
SPACE VCoal is dead；
Step 4, instantaneous dynamometer is installed in conical tube, inspection system ensures the reliable of connection, and water bath with thermostatic control is adjusted to
30 DEG C of predetermined value；
The installation and debugging of step 5, high-speed camera：According to the experiment purpose and experiment scene drop target thing of setting, simultaneously
The video camera of IMAQ is exposed according to light intensity and gain adjustment, to reach the target of experiment；
Step 6, opening the first pipe-line control valve door are inflated with gas pressure reducer, after inflation is finished, will pass through the first pipeline
Control valve is filled with CH to sample sample carrier of coalingging with 1mL/min speed4Coal dust in high-pressure air source, the sample carrier that makes to coaling is in
Adsorption equilibrium state, when gas pressure reaches certain value in sample carrier, automatic pressure control valve door opens moment, prominent coal
Discharged with methane gas by being connected to the graduated circular cone bobbin of band of sample carrier one end；
Step 7, using high-speed camera visual imaging technology with multi-angle by the collision angle α of fluorescence coal, gas each protrusion
The collection of gas volume Q information, the transport conditions in comprehensive accurate recording coal and gas prominent evolution；
Step 8, the gas flow Q gathered in sample carrier of coalingging1It is sent to time t data in computerized information harvester, so
After make Q-t figure；Gather the force value F on the instantaneous dynamometer at each moment；
Step 9. arranges experimental record, according to equation of state of real gas PV=nRTZ, and analysis meter counts evidence；According to fluorescence coal
The path analysis of collision angle α and collision rift calculates the force value F of prominent moment0 And angle [alpha] when prominent0 =α；
Step 10. replaces with the coal sample in sample carrier has identical density, particle size, but the rock without adsorptivity with coal sample
All product, make the dead space of the sample carrier of all product of muck meet VRock is dead=VCoal is dead, repeat the above steps.
8. the detection method of coal and gas prominent according to claim 7, it is characterised in that：Described fluorescence coal, passes through
Fluorescent dye is dyed to coal of the particle diameter between 0.2-0.25mm, coal can be made to show color after dyeing, is easy to take the photograph at a high speed
Camera information, and do not change other properties of coal.
9. the detection method of coal and gas prominent according to claim 7, it is characterised in that：The coal sample dead space is determined
Device includes U-tube, coaling sample carrier and methane high-pressure air source, and the outlet of methane high-pressure air source is provided with the first pipe-line control valve door,
The pipeline that sample carrier of coalingging is connected with vavuum pump is provided with the second pipe-line control valve door, coaling sample carrier and methane high-pressure air source company
Logical and connecting pipe is provided with pressure-reducing valve；The first straight tube and the second straight tube that U-tube is connected by bottom are constituted, and pass through regulation first
The relative altitude of straight tube and the second straight tube adjusts the height of liquid level in U-tube；First straight tube and the connection of the second straight tube bottom
Pipe is provided with the 4th pipe-line control valve door, the second straight tube connection of coaling sample carrier and U-tube and by the 3rd pipe-line control valve
Its opening and closing of gate control；
Coal sample dead space assay method is：
1. collected first in U-tube by drainage and be equipped with above red liquid, liquid to receive in 200ml helium, graduated cylinder
The helium of collection；
2. open vavuum pump to be de-gassed sample carrier of coalingging, degassing is coaling after finishing is in negative pressure state in sample carrier, closes
Second pipe-line control valve door；
3. the three, the 4th pipe-line control valves door of U-tube is opened, is now negative pressure in sample carrier, the helium in graduated cylinder is in negative pressure
Effect is lower to be entered in sample carrier, it is believed that helium occupies the dead space of sample carrier, adjust the straight tube of U-tube first and second straight
The relative position of pipe so that the U-tube two ends liquid level moment keeps maintaining an equal level during helium is entered, if meniscus ends are highly
VEventually, then it is exactly 200-V to enter helium volume in sample carrierEventually；
4. when the helium in graduated cylinder does not enter back into sample carrier, the height of adjustment U-tube makes the straight tube of U-tube first and the second straight tube
Left and right liquid level is consistent, closes the pipe-line control valve of U-tube the three, the 4th door, reads height where meniscus ends in U-tube,
The volume of helium entered in sample carrier can be obtained, as coaling sample carrier dead space VCoal is dead。
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| CN201710334719.2A CN107153062B (en) | 2017-05-12 | 2017-05-12 | A kind of detection device and detection method of coal and gas prominent |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974798A (en) * | 2019-04-03 | 2019-07-05 | 阳泉煤业（集团）有限责任公司 | A kind of gas pressure-flow testing device |
| CN112730797A (en) * | 2020-12-19 | 2021-04-30 | 中煤科工集团重庆研究院有限公司 | Device for coal and gas outburst simulation test |
| CN113030085A (en) * | 2021-02-26 | 2021-06-25 | 深圳先进电子材料国际创新研究院 | Test system and method for monitoring curing volume shrinkage of resin composite material |
| CN113281187A (en) * | 2021-06-25 | 2021-08-20 | 临海伟星新型建材有限公司 | Pipe pressure resistance testing device and testing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487835A (en) * | 2009-02-06 | 2009-07-22 | 煤炭科学研究总院重庆研究院 | Test apparatus for coal and gas burst |
| CN101487834A (en) * | 2009-02-06 | 2009-07-22 | 煤炭科学研究总院重庆研究院 | Combined test apparatus for coal and gas burst |
| CN102353608A (en) * | 2011-07-08 | 2012-02-15 | 中国矿业大学 | Device and method for measuring prediction index critical value of coal and gas outburst |
| CN203275388U (en) * | 2013-06-14 | 2013-11-06 | 黑龙江科技学院 | Coal and gas outburst test device |
| CN103983302A (en) * | 2014-04-30 | 2014-08-13 | 重庆大学 | Coal seam gas adsorption and desorption deformation and deformation force dynamic test system |
| CN104407108A (en) * | 2014-12-09 | 2015-03-11 | 山东大学 | Integrated coal and gas adsorption and desorption and outstanding test device and test method |
-
2017
- 2017-05-12 CN CN201710334719.2A patent/CN107153062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487835A (en) * | 2009-02-06 | 2009-07-22 | 煤炭科学研究总院重庆研究院 | Test apparatus for coal and gas burst |
| CN101487834A (en) * | 2009-02-06 | 2009-07-22 | 煤炭科学研究总院重庆研究院 | Combined test apparatus for coal and gas burst |
| CN102353608A (en) * | 2011-07-08 | 2012-02-15 | 中国矿业大学 | Device and method for measuring prediction index critical value of coal and gas outburst |
| CN203275388U (en) * | 2013-06-14 | 2013-11-06 | 黑龙江科技学院 | Coal and gas outburst test device |
| CN103983302A (en) * | 2014-04-30 | 2014-08-13 | 重庆大学 | Coal seam gas adsorption and desorption deformation and deformation force dynamic test system |
| CN104407108A (en) * | 2014-12-09 | 2015-03-11 | 山东大学 | Integrated coal and gas adsorption and desorption and outstanding test device and test method |
Non-Patent Citations (1)
| Title |
|---|
| WEI ZHAO ET AL.: "Role of the rapid gas desorption of coal powders in the development stage of outbursts", 《JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974798A (en) * | 2019-04-03 | 2019-07-05 | 阳泉煤业（集团）有限责任公司 | A kind of gas pressure-flow testing device |
| CN112730797A (en) * | 2020-12-19 | 2021-04-30 | 中煤科工集团重庆研究院有限公司 | Device for coal and gas outburst simulation test |
| CN113030085A (en) * | 2021-02-26 | 2021-06-25 | 深圳先进电子材料国际创新研究院 | Test system and method for monitoring curing volume shrinkage of resin composite material |
| CN113281187A (en) * | 2021-06-25 | 2021-08-20 | 临海伟星新型建材有限公司 | Pipe pressure resistance testing device and testing method thereof |
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| CN107153062B (en) | 2019-10-25 |
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