CN106546292A - Coal underground mining coal and rock multi- scenarios method test device and method - Google Patents
Coal underground mining coal and rock multi- scenarios method test device and method Download PDFInfo
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- CN106546292A CN106546292A CN201610972665.8A CN201610972665A CN106546292A CN 106546292 A CN106546292 A CN 106546292A CN 201610972665 A CN201610972665 A CN 201610972665A CN 106546292 A CN106546292 A CN 106546292A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses a kind of coal underground mining coal and rock multi- scenarios method test device and method, the test device includes cylinder carrier, gas pressure sensor, gas flow sensor, temperature sensor, crustal stress sensor and data collecting instrument, wherein：Gas pressure sensor, gas flow sensor, temperature sensor and crustal stress sensor synthesize in a cylinder carrier, gas pressure, gas flow, temperature and the parameters and earth stress of the lower coal and rock of multi- scenarios method effect can be measured simultaneously, reduce drilling cost, work operation and the workload of many borehole tests of underground coal mine coal and rock parameter；Gas pressure sensor, gas flow sensor, temperature sensor and crustal stress sensor are connected with data collecting instrument, and be connected with existing mine monitoring substation, basic research data statisticss not only can be provided with analysis for coal mine dynamic disaster study mechanism, also monitoring, early warning information can be provided for coal mine dynamic disaster, to reduce Coal Mine Disasters.
Description
Technical field
The invention belongs to coal underground mining coal and rock multiple physical field parameter testing technical field, is related to a kind of coal deep
In recovery process, the device tested by down-hole coal and rock Neva this gas pressure, gas flow, temperature, crustal stress and side
Method.
Background technology
During coal underground mining, this gas pressure of down-hole coal and rock Neva, gas flow, temperature, crustal stress are to affect
The key factor of coal mine production safety.With the increase of coal mining depth, coal and rock methane gas pressure, gas flow, temperature
Degree, crustal stress gradually increase.Research shows, generation and the coal and rock physical force of the dynamic disaster such as coal deep mining bump
Learn property inseparable, it is relevant with the gentle coal and rock occurrence status in ground, it is coal and rock gas pressure, gas flow, temperature and ground
The result of stress coupling effect.The various ANOMALOUS VARIATIONS of coal and rock gas pressure, gas flow, crustal stress contain dynamic disaster to be sent out
Raw precursor information, meanwhile, gas pressure, gas flow are affected by the gentle crustal stress in ground again.Therefore, to coal mining mistake
The Validity Test of down-hole coal and rock methane gas pressure, gas flow, temperature, crustal stress under multi- scenarios method effect, energy in journey
Seizure and analysis that coal mine dynamic disaster occurs precursor information are effectively improved enough, for analysis and the deep mining induction of prediction coal
Dynamic disaster, significant and application prospect.
Existing equipment and technology cannot test the gas pressure of coal underground mining coal and rock, gas flow, temperature simultaneously
Degree and parameters and earth stress, cause at present for the lower dynamic disaster genesis mechanism of coal deep mining multi- scenarios method effect recognizes not
Foot, coal mining to be difficult to avoid that and cause the generation of dynamic disaster not in time because of monitoring.
The content of the invention
It is an object of the invention to provide a kind of gas pressure, Gas-Flow that can test coal underground mining coal and rock simultaneously
The coupling test device and method of amount, temperature and crustal stress.
The purpose of the present invention is achieved through the following technical solutions：
A kind of coal underground mining coal and rock multi- scenarios method test device, including cylinder carrier, gas pressure sensor, gas
Flow transducer, temperature sensor, crustal stress sensor and data collecting instrument, wherein：
It is open on the left of the cylinder carrier, middle part is provided with square hole；
The gas pressure sensor, gas flow sensor, temperature sensor, crustal stress transducer arrangements are in cylinder carrier
Inside, data collecting instrument are arranged in outside cylinder carrier；
The gas pressure sensor, gas flow sensor, temperature sensor, crustal stress sensor pass through signal conductor and number
Connect according to Acquisition Instrument；
The gas flow sensor is connected with gas pipe, gas pipe and cylinder carrier ft connection, and is provided with outside
Gas tube valve, can be flowed out by Valve controlling methane gas, can pass through gas flow sensor test when opening valve
Gas flow parameter, and can be in collection methane gas in end outside gas pipe, for analyzing methane gas composition.
In the present invention, the cylinder carrier excircle diameter 50mm, length 200mm, thickness 4mm, in cylinder carrier
Portion is provided with the square hole of one 10mm × 10mm, and cylinder carrier is integrally formed by steel beam column to be made, and opens on the left of cylinder carrier
Sealed with layer of polyurethane at mouthful.
In the present invention, the crustal stress sensor, gas pressure sensor and temperature sensor are fixed on metal tube, gold
Category Gutron is crossed gas permeable disc and is fixed in cylinder carrier.
In the present invention, the crustal stress sensor is used to test coal-rock mass ground stress, crustal stress sensor and 6mm × 6mm
Steel plate integrator, steel plate are located in the middle part of cylinder carrier in square hole, it is ensured that had between steel plate and square hole certain
Space is circulated for methane gas, and steel plate exceeds cylinder carrier outerplanar 2mm.
In the present invention, the gas pressure sensor is used to test coal and rock gas pressure, and gas pressure sensor is close
At cylinder carrier outlet, it is located remotely from square hole, in gas pressure stability region.
In the present invention, the temperature sensor is used for the temperature for testing coal and rock local environment, temperature sensor test position
In cylinder carrier base.
In the present invention, the data collecting instrument by the signal conductor that is arranged in metal tube and gas pressure sensor,
The connection of gas flow sensor, temperature sensor and crustal stress sensor.
In the present invention, the data collecting instrument is included at A/D change-over circuits and CPU processor, A/D change-over circuits and CPU
Reason device is connected, and CPU processor is connected to program storage, display, data storage, RS232 communicating circuits, operation keyboard respectively
With standard signal output interface.
Using methane gas pressure, Gas-Flow under above-mentioned test device test coal underground mining coal and rock multi- scenarios method
The method of amount, temperature and crustal stress, comprises the steps：
（1）Instrument connection is arranged in coal petrography body；
（2）Coal underground mining coal and rock multi- scenarios method test device is placed in instrument connection；
（3）Using the vertical direction of the square hole in the middle part of cylinder carrier as the direction for intending test crustal stress；
（4）Stationary cylinder carrier；
（5）Closed test hole；
（6）Close valve, turn-on data Acquisition Instrument, by gas pressure sensor, temperature sensor and crustal stress sensor point
Coal and rock gas pressure, temperature and crustal stress in other instrument connection, Jing data collecting instruments collection coal and rock gas pressure, temperature and
Crustal stress data；
（7）Gas tube valve is opened, gas flow data are gathered, by gas pipe firedamp drainage gas, is passed by gas flow
Sensor senses the flow of gas, data collecting instrument collection gas flow, gas pressure, temperature and crustal stress.
The invention has the advantages that：
1st, the present invention synthesizes gas pressure sensor, gas flow sensor, temperature sensor and crustal stress sensor one
In individual cylinder carrier, gas pressure, gas flow, temperature and the crustal stress of multi- scenarios method effect lower coal and rock can be measured simultaneously
Parameter, reduces drilling cost, work operation and the workload of many borehole tests of underground coal mine coal and rock parameter.
2nd, gas pressure sensor, gas flow sensor, temperature sensor and crustal stress sensor and data collecting instrument
Connection, and be connected with existing mine monitoring substation, realize gas pressure, gas flow, temperature and the crustal stress ginseng of coal and rock
The Monitoring on Dynamic Change of number data and storage, not only can provide basic research data statisticss for coal mine dynamic disaster study mechanism
With analysis, also monitoring, early warning information can be provided for coal mine dynamic disaster, to reduce Coal Mine Disasters.
Description of the drawings
Structural representations of the Fig. 1 for coal underground mining coal and rock multi- scenarios method test device；
Structural representations of the Fig. 2 for gas permeable disc；
Fig. 3 is the data collecting instrument theory diagram shown in coal underground mining coal and rock multi- scenarios method test device；
Flow charts of the Fig. 4 for coal underground mining coal and rock multi- scenarios method method of testing；
In figure：1- cylinder carriers, 2- gas pressure sensors, 3- gas flow sensors, 4- temperature sensors, 5- crustal stress
Sensor, 6- data collecting instruments, 7- data transmission links, 8- metal tubes, 9- gas permeable discs one, 10- gas permeable discs two, 11- is just
Square opening, 12- steel plates, 13- gas pipes, 14- gas tube valves, 15- layer of polyurethane, 16-A/D change-over circuits, 17-CPU process
Device, 18- program storages, 19- display, 20- data storages, 21- communicating circuits, 22, operation keyboard, 23- standard signals
Output interface, 24- power supplys, 25- substations.
Specific embodiment
Below in conjunction with the accompanying drawings technical scheme is further described, but is not limited thereto, it is every to this
Inventive technique scheme is modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention, all should cover
In protection scope of the present invention.
As illustrated in fig. 1 and 2, coal underground mining coal and rock multi- scenarios method test device of the invention includes cylinder carrier
1st, gas pressure sensor 2, gas flow sensor 3, temperature sensor 4, crustal stress sensor 5 and data collecting instrument 6, its
In：
The cylinder carrier 1 is integrally formed by steel beam column to be made, and left side opening, middle part are provided with square hole 11, left side opening
Place's layer of polyurethane 15 is sealed；
The crustal stress sensor 5, gas pressure sensor 2 and temperature sensor 4 are fixed on metal tube 8, and metal tube 8 passes through
Gas permeable disc 1 and gas permeable disc 2 10 are fixed on the inside of cylinder carrier 1, wherein：Crustal stress sensor 5 is located at cylinder
At 1 middle part square hole 11 of carrier, crustal stress sensor 5 and 12 integrator of 6mm × 6mm steel plates, steel plate 12 are located at cylinder
In square hole 11 in the middle part of carrier 1, it is ensured that have certain space between steel plate 12 and square hole 11 for methane gas stream
It is logical, and steel plate 12 exceeds 1 outerplanar 2mm of cylinder carrier；Gas pressure sensor 2 is near 1 exit of cylinder carrier, temperature
Degree sensor 4 is located at 1 bottom of cylinder carrier；
The gas flow sensor 3 is connected with gas pipe 13, gas pipe 13 and 1 ft connection of cylinder carrier, and in outside
It is provided with gas tube valve 14.
As shown in figs. 1 and 3, data collecting instrument 6 is sensed with gas pressure by the signal conductor 7 being arranged in metal tube 8
Device 2, gas flow sensor 3, temperature sensor 4 and crustal stress sensor 5 connect.The data collecting instrument 6 includes that A/D is changed
Circuit 16 and CPU processor 17, A/D change-over circuits 16 are connected with CPU processor 17, and CPU processor 17 is connected to program respectively and deposits
Reservoir 18, display 19, data storage 20, communicating circuit 21, operation keyboard 22 and standard signal output interface 23.
As shown in figure 4, the present invention is using gas under above-mentioned test device test coal underground mining coal and rock multi- scenarios method
The method of gas pressure, gas flow, temperature and crustal stress, comprises the steps：
（1）Instrument connection is arranged in coal petrography body, instrument connection may be selected different azimuth and depth according to actual needs, construction is completed
Afterwards, clean out in hole；
（2）The cylinder carrier 1 of coal underground mining coal and rock multi- scenarios method test device is put in instrument connection, by square
The vertical direction in hole 11 adjusts cylinder carrier according to different detecting earth stress directions square as the direction for intending test crustal stress
The orientation in shape hole 11；
（3）Gas pipe 13 and metal tube 8 are led to outside instrument connection, 13 connecting valve 14 of gas pipe, the signal in metal tube 8
Wire 7 is connected with data collecting instrument 6；
（4）In order to ensure the good air-tightness in the orientation and stability and instrument connection of cylinder carrier 1, stationary cylinder carrier
1, and closed test hole；
（5）Closed gas tube valve 14, turn-on data Acquisition Instrument 6 should by gas pressure sensor 2, temperature sensor 4 and ground
Coal and rock gas pressure, temperature and crustal stress in 5 instrument connection of force transducer, the collection coal and rock gas pressure of Jing data collecting instruments 6
Power, temperature and crustal stress data, by 19 displaying data in real-time of display and by data storage 20 by data storage；
（7）When needing to gather gas flow data, gas tube valve 14 is opened, by 13 firedamp drainage gas of gas pipe, led to
The flow that gas flow sensor 3 senses gas is crossed, the collection gas flow of data collecting instrument 6, gas pressure, temperature and ground should
Power, 19 displaying data in real-time of display and by data storage 20 by data storage.
Gas pressure sensor of the present invention, gas flow sensor, temperature sensor, crustal stress sensor are equal
For outsourcing piece, the product of Beijing Science and Technology Ltd. of Wei Site Air China production, model can be adopted to be respectively gas pressure sensing
Device：CYB-11S；Gas flow sensor：GLW100G；Temperature sensor：WZ-PT100；Crustal stress sensor：CYB-605ST.
Claims (10)
1. a kind of coal underground mining coal and rock multi- scenarios method test device, it is characterised in that the coal underground mining coal and rock
Multi- scenarios method test device include cylinder carrier, gas pressure sensor, gas flow sensor, temperature sensor, should
Force transducer and data collecting instrument, wherein：Wherein：
It is open on the left of the cylinder carrier, middle part is provided with square hole；
The gas pressure sensor, gas flow sensor, temperature sensor, crustal stress transducer arrangements are in cylinder carrier
Inside, data collecting instrument are arranged in outside cylinder carrier；
The gas pressure sensor, gas flow sensor, temperature sensor, crustal stress sensor pass through signal conductor and number
Connect according to Acquisition Instrument；
The gas flow sensor is connected with gas pipe, gas pipe and cylinder carrier ft connection, and is provided with outside
Gas tube valve.
2. coal underground mining coal and rock multi- scenarios method test device according to claim 1, it is characterised in that the circle
Cylinder carrier is integrally formed by steel beam column to be made, excircle diameter 50mm, length 200mm, thickness 4mm.
3. coal underground mining coal and rock multi- scenarios method test device according to claim 1 and 2, it is characterised in that described
Sealed with layer of polyurethane at opening on the left of cylinder carrier.
4. coal underground mining coal and rock multi- scenarios method test device according to claim 1, it is characterised in that it is described just
The size of square opening is 10mm × 10mm.
5. coal underground mining coal and rock multi- scenarios method test device according to claim 1, it is characterised in that describedly
Strain gauge, gas pressure sensor and temperature sensor are fixed on metal tube, and metal tube is fixed on by gas permeable disc
In cylinder carrier.
6. coal underground mining coal and rock multi- scenarios method test device according to claim 1 or 5, it is characterised in that described
Crustal stress sensor and 6mm × 6mm steel plate integrators, steel plate is located in the middle part of cylinder carrier in square hole, and steel plate
Beyond cylinder carrier outerplanar 2mm.
7. coal underground mining coal and rock multi- scenarios method test device according to claim 1, it is characterised in that described watt
This pressure transducer is at cylinder carrier outlet.
8. coal underground mining coal and rock multi- scenarios method test device according to claim 1, it is characterised in that the temperature
Degree sensor is located at cylinder carrier base.
9. coal underground mining coal and rock multi- scenarios method test device according to claim 1, it is characterised in that the number
Include A/D change-over circuits and CPU processor according to Acquisition Instrument, A/D change-over circuits are connected with CPU processor, and CPU processor is connect respectively
There are program storage, display, data storage, RS232 communicating circuits, operation keyboard and standard signal output interface.
10. it is a kind of to utilize many of test device test coal underground mining coal and rock described in claim 1-9 any claim
The method of coupling lower methane gas pressure, gas flow, temperature and crustal stress, it is characterised in that methods described step is as follows：
（1）Instrument connection is arranged in coal petrography body；
（2）Coal underground mining coal and rock multi- scenarios method test device is placed in instrument connection；
（3）Using the vertical direction of the square hole in the middle part of cylinder carrier as the direction for intending test crustal stress；
（4）Stationary cylinder carrier；
（5）Closed test hole；
（6）Close valve, turn-on data Acquisition Instrument, by gas pressure sensor, temperature sensor and crustal stress sensor point
Coal and rock gas pressure, temperature and crustal stress in other instrument connection, Jing data collecting instruments collection coal and rock gas pressure, temperature and
Crustal stress data；
（7）Gas tube valve is opened, gas flow data are gathered, by gas pipe firedamp drainage gas, is passed by gas flow
Sensor senses the flow of gas, data collecting instrument collection gas flow, gas pressure, temperature and crustal stress.
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| CN201610972665.8A CN106546292A (en) | 2016-11-07 | 2016-11-07 | Coal underground mining coal and rock multi- scenarios method test device and method |
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| CN201610972665.8A CN106546292A (en) | 2016-11-07 | 2016-11-07 | Coal underground mining coal and rock multi- scenarios method test device and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107907421A (en) * | 2017-11-01 | 2018-04-13 | 中国电建集团华东勘测设计研究院有限公司 | The lower country rock response test system of Thermal-mechanical Coupling effect |
| CN108661621A (en) * | 2018-04-28 | 2018-10-16 | 黑龙江工业学院 | A kind of Mine-used I. S multiparameter recorder |
| CN109681195A (en) * | 2019-02-25 | 2019-04-26 | 中国矿业大学(北京) | A kind of down-hole drilling is interior along journey temperature infrared test device and method |
| CN111271060A (en) * | 2020-01-20 | 2020-06-12 | 王�琦 | Multi-field coupling mine intelligent mining model test system |
| CN112903399A (en) * | 2021-04-23 | 2021-06-04 | 黑龙江科技大学 | Coal spontaneous combustion multi-parameter measuring device |
| CN114165287A (en) * | 2021-12-10 | 2022-03-11 | 黑龙江科技大学 | Coal mine dynamic disaster multi-factor coupling monitoring device, system and method |
| CN114199435A (en) * | 2021-12-10 | 2022-03-18 | 黑龙江科技大学 | Device, system and method for testing stress of surrounding rock of underground mining roadway of coal mine and peeping cracks |
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| CN112903399A (en) * | 2021-04-23 | 2021-06-04 | 黑龙江科技大学 | Coal spontaneous combustion multi-parameter measuring device |
| CN114165287A (en) * | 2021-12-10 | 2022-03-11 | 黑龙江科技大学 | Coal mine dynamic disaster multi-factor coupling monitoring device, system and method |
| CN114199435A (en) * | 2021-12-10 | 2022-03-18 | 黑龙江科技大学 | Device, system and method for testing stress of surrounding rock of underground mining roadway of coal mine and peeping cracks |
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