CN103116099A - Testing device for coal-rock temperature affection on coal-rock electric charges - Google Patents
Testing device for coal-rock temperature affection on coal-rock electric charges Download PDFInfo
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- CN103116099A CN103116099A CN2013100302026A CN201310030202A CN103116099A CN 103116099 A CN103116099 A CN 103116099A CN 2013100302026 A CN2013100302026 A CN 2013100302026A CN 201310030202 A CN201310030202 A CN 201310030202A CN 103116099 A CN103116099 A CN 103116099A
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Abstract
The invention relates to a testing device for coal-rock temperature affection on coal-rock electric charges, in particular to a coal-rock electric charges scientific research device. The testing device provides a theoretical basis for acquiring a practical mechanism of generating coal-rock electric charges and for prediction and forecasting of mine dynamic disasters by the coal-rock electric charges. The testing device comprises a shielding case. A shielding case lid is arranged on top of the shielding case. A heater is arranged in the shielding case. The heater is connected with a temperature controller through a through hole. A second through hole and a third through hole are arranged on the wall of the shielding case. An electric-charge probe is arranged in the second through hole. The electric-charge probe is connected with an input end of an electric-charge sensor. An output end of the electric-charge sensor is connected with an input end of the A/D (analog/digital) convertor. An output end of the A/D convertor is connected with a data collector. A temperature probe is arranged in the third through hole, and is connected with an input end of an infrared thermometer. An output end of the infrared thermometer is connected with the data collector.
Description
Technical field
The present invention relates to a kind of coal petrography electric charge scientific research device, particularly relates to a kind of coal petrography temperature to the test unit of coal petrography charge affects.
Background technology
Rock burst refers to coal and rock when being subjected to external disturbance moment unstable failure, discharge macro-energy very and cause destroy mine power phenomenon as feature take bad shocking and explosion type, be the Nature disaster of mine.Think that at present the most promising prediction coal rock dynamic disaster phenomenon method is geophysical method.Electromagnetic radiation method is one of geophysical method commonly used.
And the prerequisite of electromagnetic radiation is the separation of electric charge, but the separation of electric charge might not produce electromagnetic radiation, and the relation that this explanation charge signal and coal rock deformation are broken is more direct.Domestic and international many scholars have also carried out a large amount of laboratory studyes to the electrical phenomena that coal petrography breaks, and the proposition electric charge induction technology such as Pan Yishan are come the prediction rock blast hazard, and have developed the coal petrography charge detection instrument that breaks.
Come prediction mine motive force disaster according to the coal petrography electric charge induction, just need to understand fully coal petrography charge generation mechanism in the dynamic disaster preparation process, existing research is unclear to coal petrography charge generation mechanism, and each airs his own views, wherein have a kind of viewpoint to think: the coal petrography temperature raises, and forms thermionic emission.On the other hand, from the general status of present China's coal-mine exploitation, adopt when deeply reaching 1000m, the coal petrography temperature will reach 30 ~ 50 ℃.The every increase of mining depth 100m, 3 ~ 5 ℃ of coal petrography increase in temperature.Does the coal petrography temperature have or not impact to the coal petrography electric charge so? are many high-temperatures influential?
Therefore, need a kind of test unit, can study the coal petrography electric charge induction rule of coal petrography under different temperatures.Provide theoretical foundation for drawing the coal petrography charge generation mechanism that gears to actual circumstances, for coal petrography electric charge prediction mine motive force disaster provides theoretical foundation.
Summary of the invention
Problem for the prior art existence, the invention provides a kind of coal petrography temperature to the test unit of coal petrography charge affects, this test unit provides theoretical foundation for drawing the coal petrography charge generation mechanism that gears to actual circumstances, for coal petrography electric charge prediction mine motive force disaster provides theoretical foundation, and simple in structure, easy to operate.
To achieve these goals, the present invention adopts following technical scheme: the test unit of a kind of coal petrography temperature to the coal petrography charge affects, comprise radome, and the top of radome is provided with the shielding cover cap, and radome forms enclosure space with the shielding cover cap; The inside of radome is provided with well heater, is provided with through hole on the radome wall, and well heater is connected by the outer temperature controller of through hole and radome; Be respectively arranged with the second through hole and third through-hole on described radome wall, be provided with the electric charge probe in the second through hole, an end of electric charge probe is arranged on the inside of radome, and the other end is connected with the input end of radome charge sensor outward; The output terminal of charge sensor is connected with the input end of A/D converter; The output terminal of A/D converter is connected with data acquisition unit; Be provided with temp probe in described third through-hole, an end of temp probe is arranged on the inside of radome, and the other end is connected with the input end of radome infrared thermometer outward; The output terminal of infrared thermometer is connected with data acquisition unit.
Described electric charge probe, temp probe are arranged in the second through hole, third through-hole by screw thread respectively.
Described radome adopts copper material.
Beneficial effect of the present invention:
Be provided with temperature controller in the present invention, can regulate as required heating-up temperature; Infrared thermometer can draw the coal rock specimen surface temperature; Radome has well shielded extraneous charge signal; Data acquisition unit directly draws temperature-electric charge relation curve; Simple in structure, easy to operate.
Description of drawings
Fig. 1 is that coal petrography temperature of the present invention is to the structural representation of the test unit of coal petrography charge affects;
Fig. 2 is the A-A cut-open view of Fig. 1;
Wherein, the 1--radome, 2--shields cover cap, the 3--well heater, 4--through hole, 5--temperature controller, 6--electric charge probe, 7--temp probe, 8--the second through hole, the 9--charge sensor, the 10--A/D converter, 11--data acquisition unit, 12--third through-hole, the 13--infrared thermometer, the 14--coal rock specimen.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, the test unit of a kind of coal petrography temperature to the coal petrography charge affects comprises radome 1, and the top of radome 1 is provided with shielding cover cap 2, and radome 1 forms enclosure space with shielding cover cap 2; The inside of radome 1 is provided with well heater 3, is provided with through hole 4 on radome 1 wall, and well heater 3 is connected by the outer temperature controller 5 of through hole 4 and radome 1; Be respectively arranged with the second through hole 8 and third through-hole 12 on described radome 1 wall, be provided with electric charge probe 6 in the second through hole 8, one end of electric charge probe 6 is arranged on the inside of radome 1, and the other end is connected by the input end of the outer charge sensor 9 of data line and radome 1; The output terminal of charge sensor 9 is connected by the input end of data line with A/D converter 10; The output terminal of A/D converter 10 is connected with data acquisition unit 11 by data line; Be provided with temp probe 7 in described third through-hole 12, an end of temp probe 7 is arranged on the inside of radome 1, and the other end is connected by the input end of the outer infrared thermometer 13 of data line and radome 1; The output terminal of infrared thermometer 13 is connected with data acquisition unit 11 by data line.
Described electric charge probe 6, temp probe 7 are arranged in the second through hole 8, third through-hole 12 by screw thread respectively.
Described radome 1 adopts copper material.
Below in conjunction with a description of drawings use procedure of the present invention:
As shown in Figure 1 and Figure 2, first coal rock specimen 14 is placed on well heater 3 of the present invention, by the temperature that temperature controller 5 is regulated well heater 3, log-on data collector 11.Charge sensor 9 sends data acquisition unit 11 to after the charge signal that gathers is changed by A/D converter 10.Infrared thermometer 13 sends the coal petrography temperature signal that gathers to data acquisition unit 11, draws coal petrography temperature-electric charge relation curve by data acquisition unit 11.Can carry out test of many times by the temperature of temperature controller 5 adjusting well heaters 3 as required, after test is completed, analyze the coal petrography temperature to coal petrography charge affects rule.
The electric charge probe 6 that the present invention adopts and charge sensor 9 adopt electric charge probe and the charge sensor in Chinese patent ZL 2,008 1 0013033.4, and the model that infrared thermometer 13 adopts is CWG60, and the model that temperature controller 5 adopts is WCK.
Claims (3)
1. the coal petrography temperature test unit to the coal petrography charge affects, is characterized in that comprising radome, and the top of radome is provided with the shielding cover cap, and radome forms enclosure space with the shielding cover cap; The inside of radome is provided with well heater, is provided with through hole on the radome wall, and well heater is connected by the outer temperature controller of through hole and radome; Be respectively arranged with the second through hole and third through-hole on described radome wall, be provided with the electric charge probe in the second through hole, an end of electric charge probe is arranged on the inside of radome, and the other end is connected with the input end of radome charge sensor outward; The output terminal of charge sensor is connected with the input end of A/D converter; The output terminal of A/D converter is connected with data acquisition unit; Be provided with temp probe in described third through-hole, an end of temp probe is arranged on the inside of radome, and the other end is connected with the input end of radome infrared thermometer outward; The output terminal of infrared thermometer is connected with data acquisition unit.
2. the test unit of coal petrography temperature according to claim 1 to the coal petrography charge affects, is characterized in that described electric charge probe, temp probe are arranged in the second through hole, third through-hole by screw thread respectively.
3. the test unit of coal petrography temperature according to claim 1 to the coal petrography charge affects, is characterized in that described radome adopts copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100302026A CN103116099A (en) | 2013-01-25 | 2013-01-25 | Testing device for coal-rock temperature affection on coal-rock electric charges |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100302026A CN103116099A (en) | 2013-01-25 | 2013-01-25 | Testing device for coal-rock temperature affection on coal-rock electric charges |
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| CN103116099A true CN103116099A (en) | 2013-05-22 |
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| CN2013100302026A Pending CN103116099A (en) | 2013-01-25 | 2013-01-25 | Testing device for coal-rock temperature affection on coal-rock electric charges |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884711A (en) * | 2018-11-23 | 2019-06-14 | 辽宁大学 | A kind of contactless coal based on principle of induction, rock zone pyroelectric monitor sensor |
| CN110044739A (en) * | 2019-04-17 | 2019-07-23 | 辽宁工程技术大学 | A kind of loaded coal rock microseism and electric charge induction monitoring test device and monitoring method |
| CN111521490A (en) * | 2020-06-08 | 2020-08-11 | 山东科技大学 | Induction test device for hydrogen bond fracture of loaded coal rock |
| CN111624326A (en) * | 2020-06-08 | 2020-09-04 | 山东科技大学 | Coal petrography body hydrogen bond induction apparatus that breaks |
Citations (3)
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| DE4233765A1 (en) * | 1992-09-23 | 1994-03-24 | Abb Metrawatt Gmbh | Electrical measurement and test device for acquiring test data according to a protocol - has at least one measurement input set up for different ranges depending on control data input device |
| CN1193743A (en) * | 1998-03-16 | 1998-09-23 | 中国矿业大学 | Method and apparatus for predicting disaster in gas bearing coal and rock |
| CN201184823Y (en) * | 2008-04-22 | 2009-01-21 | 宜兴市三恒自动化仪表有限公司 | Remote monitor for coal seam temperature |
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2013
- 2013-01-25 CN CN2013100302026A patent/CN103116099A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4233765A1 (en) * | 1992-09-23 | 1994-03-24 | Abb Metrawatt Gmbh | Electrical measurement and test device for acquiring test data according to a protocol - has at least one measurement input set up for different ranges depending on control data input device |
| CN1193743A (en) * | 1998-03-16 | 1998-09-23 | 中国矿业大学 | Method and apparatus for predicting disaster in gas bearing coal and rock |
| CN201184823Y (en) * | 2008-04-22 | 2009-01-21 | 宜兴市三恒自动化仪表有限公司 | Remote monitor for coal seam temperature |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884711A (en) * | 2018-11-23 | 2019-06-14 | 辽宁大学 | A kind of contactless coal based on principle of induction, rock zone pyroelectric monitor sensor |
| CN109884711B (en) * | 2018-11-23 | 2022-09-13 | 辽宁大学 | Non-contact coal and rock electrification monitoring sensor based on induction principle |
| CN110044739A (en) * | 2019-04-17 | 2019-07-23 | 辽宁工程技术大学 | A kind of loaded coal rock microseism and electric charge induction monitoring test device and monitoring method |
| CN111521490A (en) * | 2020-06-08 | 2020-08-11 | 山东科技大学 | Induction test device for hydrogen bond fracture of loaded coal rock |
| CN111624326A (en) * | 2020-06-08 | 2020-09-04 | 山东科技大学 | Coal petrography body hydrogen bond induction apparatus that breaks |
| CN111521490B (en) * | 2020-06-08 | 2023-03-14 | 山东科技大学 | Induction test device for hydrogen bond fracture of loaded coal rock |
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Application publication date: 20130522 |