CN204202945U - A kind of coal mine down-hole tunnel radon gas determinator - Google Patents
A kind of coal mine down-hole tunnel radon gas determinator Download PDFInfo
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- CN204202945U CN204202945U CN201420515609.8U CN201420515609U CN204202945U CN 204202945 U CN204202945 U CN 204202945U CN 201420515609 U CN201420515609 U CN 201420515609U CN 204202945 U CN204202945 U CN 204202945U
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- gas
- collection bag
- radon
- coal mine
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Abstract
The utility model discloses a kind of coal mine down-hole tunnel radon gas determinator, comprise four parts such as gas collection bag, emanometer, drying device and vacuum extractor, connected by silica gel hose between each several part.The utility model by gas collection bag collect in coal mine down-hole tunnel containing radon gas body, gas collection bag reclaims and is positioned over ground experiment room, utilize emanometer (alpha spectrometer) to measure the concentration of radon gas in gas collection bag after collecting full gas.The utility model is applicable to the mensuration of coal mine down-hole tunnel (driving face, coal road, rock gangway) radon gas, and simple to operate, and measurement result is stablized.
Description
Technical field
The utility model belongs to mineral engineering field, relates to a kind of coal mine down-hole tunnel radon gas determinator, is mainly applicable to the mensuration of radon concentration in underground coal mine driving face, coal road, rock gangway.
Background technology
Radon gas is a kind of radgas of colorless and odorless, is difficult to be therefore easily perceived by humans, and the long-term radon gas that sucks can bring injury to the health of people, and people are accustomed to claiming radon gas for " stealthy killer ".Radon is distributed widely in the earth's crust, and for colliery, the radon gas that coal rock layer, underground water produce, by migration, enters into workplace and lane space, forms the radon gas of higher concentration.Underground coal mine radon concentration is about 10 times in ground environment, and down-hole Radon and its descendants exceedes several times even tens times of state health standards.Therefore, carry out Measurement accuracy to underground coal mine air radon concentration and seem particularly important, this is the important leverage ensureing underground labour's life and health safety.
When colliery normally produces, down-hole radon concentration is more stable, and when running into the special geologic conditions such as breakdown zone, tomography, the thick acute variation of coal, hidden geological tectonic, radon consistence there will be abnormal occurrence.Coal spontaneous combustion oxidation produces heat, and coal seam temperature raises, and cause Radon eduction intensity in coal seam to increase, radon consistence occurs abnormal occurrence equally.Facts have proved in a large number, radon consistence is abnormal to break closely related with coal petrography, by the abnormal coal and rock Surface Rupture Events judging surrounding enviroment of radon consistence, can all occur the phenomenon that coal and rock is broken in the dynamic disaster process such as coal and gas prominent, impulsion pressure, roof fall.Radon gas monitoring technology as a kind of rising geophysical exploration method, to some degree for the prediction of the detection of colliery hidden geological tectonic, the detection of spontaneous combustion of coal seam primer sector and the coal rock dynamic disaster such as coal and gas prominent provides a kind of detection means having prospect.
As everyone knows, underground coal mine requires high to equipment explosion-proof, and down-hole gas detection in coal mine rate of flow of fluid is fast, and dust is large, is difficult to the test condition meeting emanometer.In addition, underground coal mine humidity is comparatively large, and affect the adsorption effect of activated charcoal to radon gas, the down-hole radon consistence error causing Radon Measurement Using Activated to record is larger.Therefore, be badly in need of the device of a kind of simple and effective coal mine down-hole tunnel radon in air concentration determination, make up the deficiency of said method.
Summary of the invention
The purpose of this utility model is to provide a kind of simple and effective coal mine down-hole tunnel radon gas determinator.
For achieving the above object, the utility model adopts following technical scheme: a kind of coal mine down-hole tunnel radon gas determinator, comprises four parts such as gas collection bag and emanometer, drying device and vacuum extractor.Gas collection bag is connected by rubber hose with vacuum extractor with emanometer, drying device successively, and composition tunnel radon gas determinator, completes radon survey work.
Described gas collection bag 1 is bivalve gas collection bag, and its two ends are provided with air intake opening valve 2 and gas outlet valve 9, and the part that valve 2,9 contacts with bag adopts inner two washer sealing, and gas collection bag 1 can vacuumize.
Described double-strand ball 10 adopts natural rubber material, and elasticity is better, and its one end is connected by rubber hose with air intake opening valve 2, and the other end contacts with air.
Described emanometer 3 adopts KJD-2000R type emanometer, this instrument built in air ebullator and semiconductor alpha probe, and instrument is quick on the draw, background is low, can realize the Fast Measurement to radon in air concentration.
Described vacuum extractor 8 can the intrasystem air of emptying radon survey, reduces background air to the impact of measurement result.
Described drying device two ends are filter cotton 4, and centre is discolour silica gel 5, and in minimizing system, moisture is on the impact of measurement result, ensure the clean of emanometer 3 inside.
A kind of coal mine down-hole tunnel radon gas determinator described in the utility model, its beneficial effect is: the apparatus structure of this device is simple, easy to operate, the Quick Acquisition of underground coal mine containing radon gas body can not only be realized, effectively can also reduce the impact of moisture on measurement result, improve the accuracy that underground coal mine radon concentration is measured.
Accompanying drawing explanation
Radon survey device schematic diagram used when Fig. 1 is the utility model making.
Tunnel air acquisition device schematic diagram used when Fig. 2 is the utility model making.
Sequence number in figure: 1-gas collection bag; 2,7,9-valve; 3-emanometer; 4-filter cotton; 5-discolour silica gel; 6-T-valve; 8-vacuum pump; 10-double-strand ball.
Embodiment
In fig. 1, radon gas determinator, comprise gas collection bag 1, emanometer 3, drying device, vacuum extractor 8, described gas collection bag 1 is bivalve gas collection bag, its two ends are provided with air intake opening valve 2 and gas outlet valve 9, the part that valve 2,9 contacts with bag adopts inner two washer sealing, and air intake opening valve 2 is connected with emanometer 3, and gas outlet valve 9 is connected with drying device with vacuum extractor 8 by T-valve 6; Described emanometer 3 is KJD-2000R type emanometer, built in air ebullator and semiconductor alpha probe, and the air intake opening of its air ebullator is connected with drying device gas outlet, and air ebullator gas outlet is connected with gas collection bag air intake opening valve.
In fig 2, tunnel air acquisition device, comprises gas collection bag 1 and double-strand ball 10, and described double-strand ball 10 one end is connected with gas collection bag by air intake opening valve 2, and the other end contacts with air.All connect by rubber hose between each several part described in the utility model.
Specific operation process is as follows.
1. the collection of coal mine down-hole tunnel gas.
A connects the various piece of gas producing device according to accompanying drawing 2, the gas in emptying gas collection bag 1, closes air intake opening valve 2 and gas outlet valve 9.
B determines the place of test, opens air intake opening valve 2, pinch double-strand ball 10 toward gas collection bag 1 air inlet with hand after arriving appointed place.
When C gathers gas, position distance more than the roadway floor 50cm of double-strand ball 10, the naked thing of 20cm above double-strand ball 10.
After D gas collection bag 1 is full of, valve-off 2, reclaims gas collection bag 1 to ground experiment room.
2. the measurement of radon gas.
A connects the various piece of radon survey system according to accompanying drawing 1, opens valve 7, opens vacuum pump 8, vacuumizes system.
After B has vacuumized, close vacuum pump 8 and valve 7, open air intake opening valve 2 and gas outlet valve 9, make gas slowly in gas collection bag 1 be full of whole system.
C opens emanometer 3, sets location parameter (measurement pattern, Measuring Time, sample number into spectrum etc.), and emanometer 3 preheating, after 5 minutes, starts to measure, and after having measured, preserves measurement result, prints measurement report.
Claims (5)
1. a coal mine down-hole tunnel radon gas determinator, it is characterized in that: comprise four parts such as gas collection bag, drying device, emanometer and vacuum extractor, gas collection bag is connected by rubber hose with vacuum extractor with emanometer, drying device successively, composition tunnel radon gas determinator, completes radon survey work.
2. a kind of coal mine down-hole tunnel radon gas determinator as claimed in claim 1, it is characterized in that: described gas collection bag is bivalve gas collection bag, its two ends are provided with two valves, and the part that valve contacts with bag adopts inner two washer sealing, and gas collection bag can vacuumize.
3. a kind of coal mine down-hole tunnel radon gas determinator as claimed in claim 1, it is characterized in that: described drying device two ends are filter cotton, centre is discolour silica gel, and one end interface is connected with emanometer, and other end interface is connected with gas collection bag with vacuum extractor by T-valve.
4. a kind of coal mine down-hole tunnel radon gas determinator as claimed in claim 1, it is characterized in that: described emanometer built in air ebullator and semiconductor alpha probe, the air intake opening of its air ebullator is connected with drying device one end, and gas outlet is connected with gas collection bag.
5. a kind of coal mine down-hole tunnel radon gas determinator as claimed in claim 1, is characterized in that: described vacuum extractor is connected with drying device with gas collection bag respectively by a T-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515609.8U CN204202945U (en) | 2014-09-07 | 2014-09-07 | A kind of coal mine down-hole tunnel radon gas determinator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515609.8U CN204202945U (en) | 2014-09-07 | 2014-09-07 | A kind of coal mine down-hole tunnel radon gas determinator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204202945U true CN204202945U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420515609.8U Expired - Fee Related CN204202945U (en) | 2014-09-07 | 2014-09-07 | A kind of coal mine down-hole tunnel radon gas determinator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751926A (en) * | 2015-04-03 | 2015-07-01 | 苏州大学 | Device for adsorbing radon gas by ZIF-8 |
| CN105675813A (en) * | 2016-01-19 | 2016-06-15 | 太原理工大学 | Experiment device for simulating radon conveying performed by geogas |
| CN108872484A (en) * | 2018-06-26 | 2018-11-23 | 榆林学院 | A kind of vacuum suction device of mine tester |
| CN109541667A (en) * | 2019-01-11 | 2019-03-29 | 南华大学 | A kind of Radon eduction simulator and radon release rate method |
| CN111220776A (en) * | 2020-01-21 | 2020-06-02 | 山东大学 | System and method for carrying out advanced geological prediction on radioactive radon carried by TBM (tunnel boring machine) |
| CN112709602A (en) * | 2020-12-16 | 2021-04-27 | 中国矿业大学 | Surrounding rock loosening ring measuring method based on radon gas evolution concentration |
-
2014
- 2014-09-07 CN CN201420515609.8U patent/CN204202945U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751926A (en) * | 2015-04-03 | 2015-07-01 | 苏州大学 | Device for adsorbing radon gas by ZIF-8 |
| CN105675813A (en) * | 2016-01-19 | 2016-06-15 | 太原理工大学 | Experiment device for simulating radon conveying performed by geogas |
| CN108872484A (en) * | 2018-06-26 | 2018-11-23 | 榆林学院 | A kind of vacuum suction device of mine tester |
| CN109541667A (en) * | 2019-01-11 | 2019-03-29 | 南华大学 | A kind of Radon eduction simulator and radon release rate method |
| CN111220776A (en) * | 2020-01-21 | 2020-06-02 | 山东大学 | System and method for carrying out advanced geological prediction on radioactive radon carried by TBM (tunnel boring machine) |
| WO2021147638A1 (en) * | 2020-01-21 | 2021-07-29 | 山东大学 | System and method for advanced geological prediction by means of tbm-carried radioactive radon |
| CN112709602A (en) * | 2020-12-16 | 2021-04-27 | 中国矿业大学 | Surrounding rock loosening ring measuring method based on radon gas evolution concentration |
| CN112709602B (en) * | 2020-12-16 | 2021-10-29 | 中国矿业大学 | Surrounding rock loosening ring measuring method based on radon gas evolution concentration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20150907 |
|
| EXPY | Termination of patent right or utility model |