CN107192794A - A kind of device of underground coal mine CO sources identification - Google Patents
A kind of device of underground coal mine CO sources identification Download PDFInfo
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- CN107192794A CN107192794A CN201710450913.7A CN201710450913A CN107192794A CN 107192794 A CN107192794 A CN 107192794A CN 201710450913 A CN201710450913 A CN 201710450913A CN 107192794 A CN107192794 A CN 107192794A
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- 239000003245 coal Substances 0.000 title claims abstract description 131
- 239000007789 gas Substances 0.000 claims abstract description 75
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000004868 gas analysis Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 18
- 238000003795 desorption Methods 0.000 description 12
- 238000001179 sorption measurement Methods 0.000 description 12
- 230000002269 spontaneous effect Effects 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000004321 preservation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to a kind of device of underground coal mine CO sources identification, including CO gas cylinders, gasing tank, the first three-way connection, coal sample canister incoming gas pipe and the coal sample tank being sequentially connected in series；The two opposite ends mouth of first three-way connection connects gasing tank and coal sample canister incoming gas pipe respectively, and the another port of the first three-way connection is connected with oxygen index instrument, the O of oxygen index instrument2Interface, N2Interface is connected respectively18O2Gas cylinder, N2Gas cylinder；Thermocouple is installed on the bottom connection of coal sample canister incoming gas pipe and coal sample tank, coal sample tank, thermocouple is electrically connected with gas analyzer；Coal sample tank top is connected with coal sample tank escape pipe；Three branch roads are parallel with coal sample tank escape pipe, respectively tie point, the second branch road and the 3rd branch road, tie point is connected with draining gas collecting apparatus, second branch road is connected with gas analyzer, 3rd branch road is connected with isotope mass spectrometer, and valve is provided with tie point, the second branch road and the 3rd branch road.Apparatus of the present invention are simple to operate precisely, set reasonable, data are reliable.
Description
Technical field
The invention belongs to coal spontaneous combustion early prediction electric powder prediction, and in particular to a kind of identification of underground coal mine CO sources
Device.
Background technology
China is a typical energy resource consumption big country based on coal, yet with ocurrence of coal seam complex geologic conditions
Changeable, production technique is limited and the problems such as weak awareness of safety, coal mining accident takes place frequently.Wherein mine fire is harm colliery peace
One of major casualty produced entirely, mine fire not only results in the heavy losses of coal resource and equipment, and can produce big
The high temperature toxic and harmful gas of amount.The thermodynamic activity of high temperature smoke can cause ventilating system disorderly, and toxic and harmful gas can be attacked
To each region of underground, so that miner's life is caused a significant threat and injured.
Usual coal-mine fire is that as caused by coal spontaneous combustion, a large amount of scholars are developed while studying coal spontaneous combustion rule
Coal spontaneous combustion forecast Predicting Technique.Wherein, index gas analytic approach is proved to be a kind of by domestic and foreign scholars is used for coal spontaneous combustion morning
The effective ways of phase forecast prediction.CO gases are widely used as prediction with its sensitivity, the easily feature such as detection property and regularity again
The index gas that coal spontaneous is under fire.But a large amount of field practices in recent years show that CO gases occurs often in coal mining activity space
Transfinite but do not occur the phenomenon of spontaneous fire, the accurate forecast to coal spontaneous combustion brings certain puzzlement, therefore effectively identification
CO gas sources, it is problem in science urgently to be resolved hurrily to take targetedly measure to limit CO and transfinite extremely.
Present invention applicant after comprehensive analysis by thinking, except the CO and underground diesel locomotive of fresh distinguished and admirable middle carrying are transported
Outside the CO that row is produced, underground coal mine CO gas sources can also be divided into following three kinds, be the primary CO of ocurrence of coal seam respectively（P-
CO）, coal oxidation generation CO（O-CO）And the CO of the disrumpent feelings decomposition of texture of coal machinery（S-CO）.Arrived for field observation
CO concentration, is the synthesis result for the CO for containing separate sources.The more of scene concern are to take measures to drop CO concentration
It is low to below safety index, effective differentiation is not carried out to CO source and recognized, specific aim is not strong.Lack a kind of to CO
Source make a distinction the theory and guidance method of identification.
Based on above-mentioned present situation, a kind of device for recognizing underground coal mine CO sources of design construction.Being intended to can to underground coal mine
The CO gases that can occur carry out source identification, take specific aim measure to solve the mistake occurred during the prediction of coal spontaneous combustion early prediction
Alarm problem.
The content of the invention
In view of the deficienciess of the prior art, a kind of the present invention is intended to provide device of underground coal mine CO sources identification.For
Above-mentioned purpose is realized, the technical solution adopted by the present invention is, a kind of device of underground coal mine CO sources identification, including be sequentially connected in series
CO gas cylinders, gasing tank, the first three-way connection, coal sample canister incoming gas pipe and coal sample tank；Two opposite ends mouthful point of first three-way connection
Not Lian Jie gasing tank and coal sample canister incoming gas pipe, the another port of the first three-way connection is connected with oxygen index instrument, the O of oxygen index instrument2
Interface, N2Interface is connected respectively18O2Gas cylinder, N2Gas cylinder；Installed on the bottom connection of coal sample canister incoming gas pipe and coal sample tank, coal sample tank
There is thermocouple, thermocouple is electrically connected with gas analyzer；Coal sample tank top is connected with coal sample tank escape pipe；On coal sample tank escape pipe
Three branch roads, respectively tie point, the second branch road and the 3rd branch road are parallel with, tie point is connected with draining gas collecting apparatus,
Second branch road is connected with gas analyzer, and the 3rd branch road is connected with isotope mass spectrometer, tie point, the second branch road and the 3rd
Valve is provided with road.
It is preferred that, the gas analyzer, isotope mass spectrometer are with calculating mechatronics.
It is preferred that, filter screen is installed inside the coal sample tank.
It is preferred that, the distance of the filter screen and coal sample pot bottom is 2cm.
It is preferred that, the coal sample tank is placed in temperature regulating device, and the temperature regulating range of temperature regulating device is not less than room temperature extremely
500 DEG C, heating rate controllable.
It is preferred that, vavuum pump is connected with by the second three-way connection on coal sample canister incoming gas pipe.
It is preferred that, it is characterised in that：The draining gas collecting apparatus includes water is housed in conduit, tank and graduated cylinder, tank, amount
Cylinder is tipped upside down in water, and one end of conduit is connected with tie point, the other end is with extending into inside graduated cylinder.
First CO gases are filled with coal sample tank by gasing tank, quantitatively determined with Langmuir mono molecule layer adsorptions
Gas adsorption amount under a certain adsorption equilibrium pressure.Desorption experiment is carried out under normal temperature condition.The coal sample desorbed after balance is led to
Enter high-purity N2Gas and high-purity isotope18O2Gas, simulates the generation environment for the CO gases that underground is likely to occur, analysis respectively
Its Conduce Disciplinarian, foundation is provided for follow-up data processing source identification.
The beneficial effect comprise that：Experimental provision is simple to operate precisely, sets reasonable, data are reliable.It can be used to
Each several part CO essential distinction is distinguished, the CO of a certain particular source Conduce Disciplinarian is pointedly studied, is coal spontaneous combustion early stage essence
Quasi- forecast offer method, with certain Practical significance.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.Therefore, reality of the invention below to providing in the accompanying drawings
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, a kind of device of underground coal mine CO sources identification, including CO gas cylinders 1, the gasing tank 6, first being sequentially connected in series
Three-way connection 8, coal sample canister incoming gas pipe 4 and coal sample tank 15；The two opposite ends mouth of first three-way connection 8 connects the He of gasing tank 6 respectively
Coal sample canister incoming gas pipe 4, the another port of the first three-way connection 8 is with there is the venthole 12 on oxygen index instrument 27 to be connected, oxygen index instrument
27 O2Interface 11, N2Interface 10 is connected respectively18O2Gas cylinder 3, N2Gas cylinder 2；The bottom of coal sample canister incoming gas pipe 4 and coal sample tank 15 connects
Connect, thermocouple 20 is installed on coal sample tank 15, thermocouple 20 is electrically connected with gas analyzer 21；The top of coal sample tank 15 is connected with coal
Sample tank escape pipe 13；Three branch roads, respectively tie point 5, the second branch road 7 and the 3rd are parallel with coal sample tank escape pipe 13
Road 13, tie point 5 is connected with draining gas collecting apparatus, and the second branch road 7 is connected with gas analyzer 21, the 3rd branch road 13 and same position
Quality spectrometer 22 is connected, and valve is provided with tie point 5, the second branch road 7 and the 3rd branch road 13.
The gas analyzer 21, isotope mass spectrometer 22 are electrically connected with computer 26.
Filter screen 17 is installed, the distance of filter screen 17 and the bottom of coal sample tank 15 is 2cm inside the coal sample tank 15.Coal sample tank enters
The bottom connection of tracheae 4 and coal sample tank 15, makes gas be passed through tank body from bottom to top, coal body can be made uniformly to contact gas, reaction is filled
Point.
The coal sample tank 15 is placed on temperature regulating device 16（Purchased from Tianjin tonneau Xinda instrument plant, high-temperature test chamber
BPG-26B）In, the temperature regulating range of temperature regulating device 16 is room temperature to 500 DEG C, heating rate controllable.It can realize simultaneously
Heating and temperature controlling function, can replace the constant water bath box being commonly used in existing adsorption and desorption experiment coal sample is kept constant temperature shape
State, can also realize and give coal sample tank uniform heating function.
There is stainless steel casing protection the outside of thermocouple 20, is arranged in the inner space of coal sample tank 15, spiral shell is used with tank body
Line is connected, and the other end is connected by lead with gas analyzer 21, and monitoring tank interior temperature change function in real time can be achieved.
Vavuum pump 14 is connected with by the second three-way connection 9 on coal sample canister incoming gas pipe 4.
The draining gas collecting apparatus includes water is housed in conduit 18, tank 23 and graduated cylinder 19, tank 23, and graduated cylinder 19 is tipped upside down on
In water, one end of conduit 18 is connected with tie point 5, the other end and extend into inside graduated cylinder 19.
Experimentation is as follows：
1）The adsorption and desorption experiment of coal sample at normal temperatures and pressures
After coal sample degassing process, at normal temperatures and pressures（15~35℃）CO gases are passed through, with the coal sample after adsorption equilibrium in normal temperature
Lower carry out desorption experiment, desorption properties of the research coal sample to CO.Obtaining preservation has CO coal sample simultaneously, obtains under normal temperature and pressure
Primary preservation CO adsorption law in coal, studies its influence transfinited extremely to CO.
2）Coal sample exists18O2Normal temperature oxidation experiment under environment
N is controlled by oxygen index instrument2、18O2Match as 78:22 simulated air environment, coal sample tank is aoxidized at normal temperatures and pressures
Experiment.With the CO concentration under isotope mass spectrometer coal sampling normal temperature oxidation.Obtained CO includes two parts：1. primary preservation
CO, coal sample after desorption experiment its adsorption equilibrium in air ambient can change；2. coal oxygen complex action is generated
Coal oxygen complex action generates CO rule under CO, research normal temperature and pressure.This two parts CO can be distinguished with oxygen isotope
Come.
Existed by testing acquisition coal sample18O2The Conduce Disciplinarian of each several part CO gases and life during normal temperature oxidation under environment
Cheng Liang, with reference to the CO gas flows monitored in underground coal mine actual production process, the primary CO of preservation in inverse coal seam.
3）Coal sample exists18O2Heating experiment under environment
Coal sample is done with the coal sample after adsorption and desorption experiment to exist18O2Heating experiment under environment.Before this, coal sample is tested
Pyrolysis temperature T1.Inert gas is passed through after coal sample is vacuumized, the heating experiment of coal sample is carried out, monitors the change of CO amounts, really
Determine coal sample to start to be pyrolyzed out CO temperature.Coal sample exists18O2Heating experiment under environment, control heating rate, temperature elevating range≤
T1.With the concentration that CO is produced in isotope mass spectrometer and gas analyzer analysis temperature-rise period.Obtained CO includes two
Point：1. the CO of primary preservation；2. coal oxygen complex action generates CO.This two parts CO can still be distinguished with oxygen isotope
Come.
Study coal sample Central Plains and give birth to CO during seam mining, the adsorption law in air ambient.It is right to study its
The amendment of coal spontaneous combustion prediction index.
4）Heating experiment of the coal sample in inert-gas environment
Heating experiment of the coal sample in inert-gas environment is carried out with the coal sample after adsorption and desorption experiment.Nitrogen is passed through into coal sample tank
Gas, control temperature elevating range and heating rate.The concentration that CO is produced in temperature-rise period is analyzed with gas analyzer.Obtain
CO includes two parts：1. the CO that pyrolysis is generated；2. the CO of primary preservation.Coal sample is after sufficient desorption time, often
The CO that can be desorbed under normal temperature and pressure is all desorbed.Due to the rise of temperature, the absorption property of coal sample can be affected, and lead
CO gas desorption of the original preservation in coal sample is caused to come out.
The primary CO of the CO gases being likely to occur for underground coal mine, i.e. ocurrence of coal seam（P-CO）, coal oxidation generation
CO（O-CO）And the CO of the disrumpent feelings decomposition of texture of coal machinery（S-CO）, experimentally each several part CO is made a distinction, ground respectively
Study carefully its Conduce Disciplinarian.
Concrete operation step：Vavuum pump 14 is opened to vacuumize device；CO gas cylinders 1 are opened, by pressure-reducing valve by gas
It is filled with gasing tank, reaches and gas cylinder is closed after certain the blowing pressure, then gas is filled with coal sample tank, reaches certain inflation
After pressure, air intake valve is closed.After coal sample reaches adsorption equilibrium, the desorption experiment of coal sample is carried out.Because CO is insoluble in water, with row
The change of water level and record data in water gas collection method, observation graduated cylinder 19.After coal sample reaches desorption balance, N is passed through2、18O2 Mixing
Gas, carries out normal temperature experiment and heating experiment.
Claims (7)
1. a kind of device of underground coal mine CO sources identification, it is characterised in that：Including the CO gas cylinders being sequentially connected in series, gasing tank,
One three-way connection, coal sample canister incoming gas pipe and coal sample tank；The two opposite ends mouth of first three-way connection connects gasing tank and coal sample respectively
Canister incoming gas pipe, the another port of the first three-way connection is connected with oxygen index instrument, the O of oxygen index instrument2Interface, N2Interface connects respectively
Connect18O2Gas cylinder, N2Gas cylinder；The bottom connection of coal sample canister incoming gas pipe and coal sample tank, is provided with thermocouple on coal sample tank, thermocouple with
Gas analyzer is electrically connected；Coal sample tank top is connected with coal sample tank escape pipe；Three branch roads are parallel with coal sample tank escape pipe, point
Not Wei tie point, the second branch road and the 3rd branch road, tie point is connected with draining gas collecting apparatus, the second branch road and gas analysis
Instrument is connected, and the 3rd branch road is connected with isotope mass spectrometer, and valve is provided with tie point, the second branch road and the 3rd branch road.
2. the device of underground coal mine CO sources as claimed in claim 1 identification, it is characterised in that：The gas analyzer, same to position
Quality spectrometer is with calculating mechatronics.
3. the device of underground coal mine CO sources as claimed in claim 1 identification, it is characterised in that：It is provided with inside the coal sample tank
Filter screen.
4. the device of underground coal mine CO sources as claimed in claim 1 identification, it is characterised in that：The filter screen and coal sample pot bottom
Distance be 2cm.
5. the device of underground coal mine CO sources as claimed in claim 1 identification, it is characterised in that：The coal sample tank is placed on temperature control
In device, the temperature regulating range of temperature regulating device is not less than room temperature to 500 DEG C, heating rate controllable.
6. the device of underground coal mine CO sources as claimed in claim 1 identification, it is characterised in that：Pass through on coal sample canister incoming gas pipe
Two three-way connections are connected with vavuum pump.
7. the device of underground coal mine CO sources as claimed in claim 1 identification, it is characterised in that：The draining gas collecting apparatus includes
Water is housed, graduated cylinder tipped upside down in water in conduit, tank and graduated cylinder, tank, one end of conduit is connected with tie point, the other end and
It extend into inside graduated cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450913.7A CN107192794B (en) | 2017-06-15 | 2017-06-15 | Device for identifying underground CO source of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450913.7A CN107192794B (en) | 2017-06-15 | 2017-06-15 | Device for identifying underground CO source of coal mine |
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| Publication Number | Publication Date |
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| CN107192794A true CN107192794A (en) | 2017-09-22 |
| CN107192794B CN107192794B (en) | 2020-06-19 |
Family
ID=59879114
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|---|---|---|---|
| CN201710450913.7A Active CN107192794B (en) | 2017-06-15 | 2017-06-15 | Device for identifying underground CO source of coal mine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279283A (en) * | 2018-05-03 | 2018-07-13 | 华北理工大学 | To the measurement device of multicomponent gas adsorption-desorption characteristics in Coal Self-ignition Process |
| CN108387686A (en) * | 2018-01-30 | 2018-08-10 | 河南理工大学 | Coal adsorbs Y-CO and desorbs the comprehensive test device of YJ-CO/YS-CO gases |
| CN108414629A (en) * | 2018-01-30 | 2018-08-17 | 河南理工大学 | Coal Self-ignition Process discharges the class test device of P-CO/ON-CO/OT-CO gases |
| CN108982054A (en) * | 2018-08-07 | 2018-12-11 | 亚翔系统集成科技（苏州）股份有限公司 | A kind of toilet's corrosive gas source determines method |
| CN117074241A (en) * | 2023-10-13 | 2023-11-17 | 太原理工大学 | Method for measuring content of water participating in spontaneous combustion reaction product of coal based on isotope tracking |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387686A (en) * | 2018-01-30 | 2018-08-10 | 河南理工大学 | Coal adsorbs Y-CO and desorbs the comprehensive test device of YJ-CO/YS-CO gases |
| CN108414629A (en) * | 2018-01-30 | 2018-08-17 | 河南理工大学 | Coal Self-ignition Process discharges the class test device of P-CO/ON-CO/OT-CO gases |
| CN108279283A (en) * | 2018-05-03 | 2018-07-13 | 华北理工大学 | To the measurement device of multicomponent gas adsorption-desorption characteristics in Coal Self-ignition Process |
| CN108279283B (en) * | 2018-05-03 | 2023-08-11 | 华北理工大学 | Device for measuring adsorption and desorption characteristics of multi-component gas in coal spontaneous combustion process |
| CN108982054A (en) * | 2018-08-07 | 2018-12-11 | 亚翔系统集成科技（苏州）股份有限公司 | A kind of toilet's corrosive gas source determines method |
| CN117074241A (en) * | 2023-10-13 | 2023-11-17 | 太原理工大学 | Method for measuring content of water participating in spontaneous combustion reaction product of coal based on isotope tracking |
| CN117074241B (en) * | 2023-10-13 | 2024-01-19 | 太原理工大学 | Method for measuring content of water participating in spontaneous combustion reaction product of coal based on isotope tracking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107192794B (en) | 2020-06-19 |
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