CN101502809A - Test device for desorption of mash gas - Google Patents
Test device for desorption of mash gas Download PDFInfo
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- CN101502809A CN101502809A CNA2009101031561A CN200910103156A CN101502809A CN 101502809 A CN101502809 A CN 101502809A CN A2009101031561 A CNA2009101031561 A CN A2009101031561A CN 200910103156 A CN200910103156 A CN 200910103156A CN 101502809 A CN101502809 A CN 101502809A
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- desorption
- mash gas
- sealed compartment
- coal
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Abstract
The invention discloses a mash gas desorption test device, which comprises an airtight cabin and an air pressure loading device. A pressure air passage of the air pressure loading device is communicated with the airtight cabin, and the airtight cabin is provided with a pressure relief port which is provided with a control valve. The device also comprises a camera arranged outside the airtight cabin, and the part on the airtight cabin corresponding to the camera is transparent. The device can distinctly observe and record the desorption state, directly observe the damage process of mash gas desorption to coal, and provide a theoretical foundation for researching the influence of the mash gas desorption on the coal and the mash gas; when the device is used, the desorption pressure and time of the mash gas can be adjusted, the test result under different time and pressure can be observed, and the device is flexible and convenient to use; and the device has the advantages of simple structure, small volume, low manufacturing cost, and comparatively simple operation.
Description
Technical field
The present invention relates to a kind of coal section grinding device, particularly a kind of test device for desorption of mash gas.
Background technology
Coal and gas burst accident are meant in the process of coal mining, coal body is under crustal stress and gas acting in conjunction, broken coal and gas are by the unusual dynamic phenomenon of dishing out to the digging space suddenly in coal body or the rock mass, show as several tons to thousands of tons of even the coal petrography that reaches the fragmentation more than ten thousand tons in second time several seconds to tens, dish out to the digging space by coal and rock, gush out with a large amount of gas simultaneously, endanger comparatively serious.
The occurrence form of gas has free state and ADSORPTION STATE in the coal seam, and wherein adsorption gas accounts for about 90% of whole gas bearing capacities, the desorb in coal and gas are outstanding of a large amount of adsorption gas, participation broken coal and coal dished out.But desorption of mash gas is very not clear to the damage effect of coal, and particularly the visual process of desorption of mash gas was not also carried out research so far.And desorption of mash gas test can be studied the damage effect of adsorption gas desorb in coal and gas are given prominence in the simulation coal.
Therefore, need a kind of experimental provision, can simulate the desorption process of adsorption gas in the coal, can clearly observe and write down the state of desorb, directly observe the destructive process of desorption of mash gas to coal, the influence of coal and gas being given prominence to for the research desorption of mash gas provides theoretical foundation.
Summary of the invention
In view of this, the invention provides a kind of test device for desorption of mash gas, can clearly observe and write down the state of desorb, directly observe the destructive process of desorption of mash gas to coal, the influence of coal and gas being given prominence to for the research desorption of mash gas provides theoretical foundation.
Test device for desorption of mash gas of the present invention, a kind of test device for desorption of mash gas is characterized in that: comprise sealed compartment and air pressure loading equipemtn, the pressure gas passage of described air pressure-loading equipment is communicated with sealed compartment, described sealed compartment is provided with the relief port, and described relief port is provided with control valve;
Also comprise being arranged on the outer video camera of sealed compartment, on the described sealed compartment with the transparent setting in video camera corresponding position.
Further, described sealed compartment interior bottom surface fixedly installs limitting casing;
Further, also comprise controller, described video camera links to each other with controller;
Further, described control valve is magnetic valve or pneumatic operated valve, and the command input end of described magnetic valve or pneumatic operated valve connects controller.
Beneficial effect of the present invention: test device for desorption of mash gas of the present invention, adopt transparent sealed compartment structure and video camera is set, can clearly observe and write down the state of desorb, directly observe the destructive process of desorption of mash gas to coal, the influence of coal and gas being given prominence to for the research desorption of mash gas provides theoretical foundation; Can adjust the desorption pressures and the time of gas during use, observe the result of the test under different time and the pressure, flexible and convenient to use; The present invention is simple in structure, volume is little, cost of manufacture is low, operates fairly simple.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
Accompanying drawing is a structural representation of the present invention, as shown in the figure: the test device for desorption of mash gas of present embodiment, comprise sealed compartment 1 and air pressure loading equipemtn 8, the pressure gas passage 9 of described air pressure-loading equipment 8 is communicated with sealed compartment 1, described sealed compartment 1 is provided with relief port 3, and relief port 3 is provided with control valve 4; Control valve 4 in the present embodiment is a magnetic valve, and the control simple and sensitive improves the confidence level of test, certainly, also can adopt pneumatic operated valve, also can reach goal of the invention;
Also comprise the video camera 6 that is arranged on outside the sealed compartment 1, with the transparent setting in video camera 6 corresponding positions, transparent place is set to window structure 2 on the sealed compartment 1; Simple and compact for structure, the convenient observation and shooting;
Also comprise controller 5, described video camera 6 links to each other with controller 5; The command input end of magnetic valve or pneumatic operated valve connects controller 5; Can gather and control video camera and valve automatically by controller, realize intellectualized operation;
Sealed compartment 1 interior bottom surface fixedly installs limitting casing 7, can limit coal sample (raw coal) and move in sealed compartment, avoids interference result of the test.
The present invention in use, the bulk raw coal that the scene is got is processed into standard specimen, be placed in the sealed compartment in the limitting casing, close sealed compartment, in sealed compartment, inject high pressure gas gas, through long-time inflation, gas is fully adsorbed, throw open the control valve that makes the sealed compartment relief port, sealed compartment is communicated with ambient atmosphere, the gas that fully adsorbs in the coal sample is fast desorption under unexpected release situation, by controller control video camera and control valve, by the transparent window record, the coal sample after the destruction is carried out grading analysis to the change procedure of coal sample by video camera, investigates the rule between desorption of mash gas and the coal sample destruction.
Advantage of the present invention is: simple in structure, easy to operate, result of the test is simple and clear.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. test device for desorption of mash gas, it is characterized in that: comprise sealed compartment and air pressure loading equipemtn, the pressure gas passage of described air pressure-loading equipment is communicated with sealed compartment, and described sealed compartment is provided with the relief port, and described relief port is provided with control valve;
Also comprise being arranged on the outer video camera of sealed compartment, on the described sealed compartment with the transparent setting in video camera corresponding position.
2. test device for desorption of mash gas according to claim 1 is characterized in that: described sealed compartment interior bottom surface fixedly installs limitting casing.
3. test device for desorption of mash gas according to claim 2 is characterized in that: also comprise controller, described video camera links to each other with controller.
4. test device for desorption of mash gas according to claim 3 is characterized in that: described control valve is magnetic valve or pneumatic operated valve, and the command input end of described magnetic valve or pneumatic operated valve connects controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101031561A CN101502809A (en) | 2009-02-06 | 2009-02-06 | Test device for desorption of mash gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101031561A CN101502809A (en) | 2009-02-06 | 2009-02-06 | Test device for desorption of mash gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101502809A true CN101502809A (en) | 2009-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101031561A Pending CN101502809A (en) | 2009-02-06 | 2009-02-06 | Test device for desorption of mash gas |
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| CN (1) | CN101502809A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053141A (en) * | 2010-12-09 | 2011-05-11 | 中国矿业大学 | Device and method for testing influence of externally added water on desorption characteristic of gas-containing coal body |
| CN102419295A (en) * | 2011-08-19 | 2012-04-18 | 中国矿业大学(北京) | Loaded coal rock constant pressure gas adsorption desorption testing system and method thereof |
| CN102879290A (en) * | 2012-09-25 | 2013-01-16 | 成都理工大学 | Coal rock desorption testing method |
| CN102901801A (en) * | 2012-09-29 | 2013-01-30 | 山西煤炭运销集团科学技术研究有限公司 | Experimental method for raising gas desorption property |
| CN105203427A (en) * | 2015-09-18 | 2015-12-30 | 河南理工大学 | Gas-instant-desorption testing device and method |
| CN118033756A (en) * | 2024-04-12 | 2024-05-14 | 山东科技大学 | Roadway transient electromagnetic advanced fine water detection system and method |
-
2009
- 2009-02-06 CN CNA2009101031561A patent/CN101502809A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053141A (en) * | 2010-12-09 | 2011-05-11 | 中国矿业大学 | Device and method for testing influence of externally added water on desorption characteristic of gas-containing coal body |
| CN102053141B (en) * | 2010-12-09 | 2013-07-17 | 中国矿业大学 | Method for testing desorption characteristic of externally added water on gas-containing coal body |
| CN102419295A (en) * | 2011-08-19 | 2012-04-18 | 中国矿业大学(北京) | Loaded coal rock constant pressure gas adsorption desorption testing system and method thereof |
| CN102419295B (en) * | 2011-08-19 | 2013-05-01 | 中国矿业大学(北京) | Loaded coal rock constant pressure gas adsorption desorption testing system and method thereof |
| CN102879290A (en) * | 2012-09-25 | 2013-01-16 | 成都理工大学 | Coal rock desorption testing method |
| CN102879290B (en) * | 2012-09-25 | 2014-10-29 | 成都理工大学 | Coal rock desorption testing method |
| CN102901801A (en) * | 2012-09-29 | 2013-01-30 | 山西煤炭运销集团科学技术研究有限公司 | Experimental method for raising gas desorption property |
| CN105203427A (en) * | 2015-09-18 | 2015-12-30 | 河南理工大学 | Gas-instant-desorption testing device and method |
| CN118033756A (en) * | 2024-04-12 | 2024-05-14 | 山东科技大学 | Roadway transient electromagnetic advanced fine water detection system and method |
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Open date: 20090812 |