CN201007872Y - Experimental device for detonating gas by rock friction - Google Patents
Experimental device for detonating gas by rock friction Download PDFInfo
- Publication number
- CN201007872Y CN201007872Y CNU2007200352379U CN200720035237U CN201007872Y CN 201007872 Y CN201007872 Y CN 201007872Y CN U2007200352379 U CNU2007200352379 U CN U2007200352379U CN 200720035237 U CN200720035237 U CN 200720035237U CN 201007872 Y CN201007872 Y CN 201007872Y
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- friction
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- rock
- seal closure
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
An experimental device of a rock friction firing firedamp comprises a generator which is arranged on a chassis, a dynamical friction explosive device which is connected with the generator, an infrared thermal imaging apparatus of a monitoring dynamic friction explosive device and a data collector. The dynamical friction explosive device is made up of a sealing cover which is provided with a gas injection hole, a chuck which is arranged on a rotation sample of the inner sealing cover, a balance support which supports the rotation sample and a pressure device relative to a radial of the rotation sample being symmetrically fixed on the sealing cover. The utility model can accurately analyze the temperature variation condition which is produced through rock being impacted and fritted, the strength of friction heating and the strength of producing spark between the different rocks and the possibility of the gas exploding, thereby providing reliable experimental basis for analyzing the possibility that the gas is exploded through impacting and fritting by roof breakage and rocks on the spot of a coal mining. The experimental system has the advantages of stability and reliability, small volume, compact structure, excellent sealing and high safety performance.
Description
Technical field
The utility model relates to the experimental provision of rock frictional test actuation gas, the experiment that is particularly useful for mine goaf roof collapse rock crash temperature arrising caused by friction, produces spark situation and initiation gas explosion possibility also is applicable to the experiment of rock and metal, metal and intermetallic bump temperature arrising caused by friction situation and initiation gas explosion possibility.
Background technology
Along with the increase of coal production and improving constantly of colliery mining machinery degree, the particularly development of mining technology, the mining rate of workplace significantly increases, workplace and goaf gas accident are increasing, and wherein the spark initiation actuation gas possibility owing to goaf top plate inbreak and frictional heat or generation increases thereupon.The example that much causes gas explosion accident owing to bump, friction is all arranged both at home and abroad, caused great casualties and economic loss.It is reported that the gas explosion accident that the friction of a lot of cause roof collapse bump causes all took place for Britain, West Germany, Australia, Japan, the U.S., USSR (Union of Soviet Socialist Republics), Canada etc.In the last few years domestic, also there are many gas explosion accidents to be proved to roof collapse rock crash friction and cause.The gas explosion accident that causes because of roof collapse bump, friction that report is all arranged in mineral bureaus such as China Jincheng, Yangcheng, Qinshui, Jixi, Datong District, Western Hills, Xuzhou, Huainan, Hegang, Tonghua.The continuous generation of this type of accident has brought bigger security threat and economic loss to colliery production.Therefore be necessary this is studied in advance, the possibility of the spark actuation gas of bump friction and generation thereof between checking exploitation face roof caving rock, on the one hand provide possible prevention consciousness, also can be in the gas explosion accident gas on the other hand and ignite solving of reason experimental data is provided prevention goaf and face gas explosion accident.
The utility model content
The purpose of this utility model provides a kind of experimental provision of simulating goaf top plate caving rock bump friction initiation gas.
Rock crash frictional experiment device of the present utility model, it is by the motor that is located on the base, the dynamic friction apparatus to cause bursting that links to each other with motor, the infrared thermography and the data acquisition unit of monitoring dynamic friction apparatus to cause bursting constitute.
Described dynamic friction apparatus to cause bursting comprises the seal closure that is provided with mutual this filling orifice, be provided with the chuck that the rotation sample is installed in the seal closure, the chuck front portion is provided with the balance bracket of supporting rotation sample, and rotation sample radial symmetry is provided with the pressue device that is fixed on the seal closure; Described pressue device comprises sleeve pipe, is provided with the spring that supports pressurized sample in the sleeve pipe, and its outside is provided with the rotation handgrip; Be provided with gas in the described seal closure and stir fan.
The utility model utilizes the symmetrical expression pressuring method, in conjunction with infrared thermography rock frictional test experimental temperature distribution situation is tested, but the intensity of the intensity of frictional heat and generation spark between fricative temperature variations of Accurate Analysis rock crash and different rock, rock crash frictional heat situation, the spark situation of generation and the possibility of actuation gas etc. that cause for analysis colliery scene roof collapse provide reliable experimental evidence.The utility model also can experimentize to the possibility of rock and the fricative spark situation of metal, metal and intermetallic, intensification situation and actuation gas simultaneously.Experimental system is reliable and stable, and volume is little, compact conformation, good airproof performance, security performance height.
Description of drawings
Fig. 1 is the work system figure of the utility model experiment table.
Fig. 2 is the A-A view of Fig. 1.
Among the figure: base 1, motor 2, chuck 3, gas filling orifice 4, dynamic friction apparatus to cause bursting 5, rotation sample 6, pressurized sample 7, evener 8, gas stir fan 9, seal closure 10, infrared thermography 11, data processor 12, speed regulator 13, remote switch 14, spring 15, sleeve pipe 16, rotate handgrip 17.
Embodiment
Below in conjunction with the embodiment in the accompanying drawing the utility model is further described:
Shown in Figure 1, experimental provision of the present utility model mainly is made of motor 2, dynamic friction apparatus to cause bursting 5, infrared thermography 11 and data processor 12, dynamic friction apparatus to cause bursting 5 is by seal closure 10, be located at the chuck 3 that rotation sample 6 is installed in the seal closure 10, the balance bracket 8 of supporting rotation sample 6 constitutes, seal closure 10 is provided with mutually this filling orifice 4, and its inside is provided with to make to be injected the gas that methane gas stirs and stir fan 9, and its top is provided with the free face that can be washed open by blast.Chuck 3 front portions are provided with the balance bracket 8 of supporting rotation sample 6, and balance bracket 8 is made of equlizing support and the ball of establishing thereon.Rotation sample 6 radial symmetry are provided with the pressue device that is fixed on the seal closure 10, pressue device is by sleeve pipe 16, be provided with the spring 15 that supports pressurized sample 7 in the sleeve pipe 16 and constitute, pressue device stretches out seal closure 10 1 ends and is provided with the rotation handgrip 17 that can accurately write down amount of spring compression.Motor 2 is located on the base 1 with the dynamic friction apparatus to cause bursting 5 that links to each other with motor 2, infrared thermoviewer 11 is located at the top of monitoring dynamic friction apparatus to cause bursting 5, link to each other with data acquisition unit 12, motor 2 is connected with the speed regulator 13 that changes motor 2 rotating speeds by remote switch 14 controls on its circuit.
The course of work: will rotate sample 6 and be positioned over balance bracket 8 and be fixed on the chuck 3, pressurized sample 7 is positioned in the sleeve pipe 16, rotate the contact pressure of handgrip 17 to design, open infrared thermography 11, data processor 12 and video recorder, keep free face 5 to open wide, open remote switch 14 and regulate the rotational speed of speed regulator 13, carry out the temperature test and the spark record of rock frictional test surface of contact to design.Regulate to rotate handgrip 17 then respectively to different contact pressures, and regulate speed regulator 13 to different rotational speeies, test under the different contact pressures and differentiated friction speed under rock frictional test give birth to the spark intensity of enthusiasm condition and generation.
Claims (4)
1. the experimental provision of rock frictional test actuation gas, it is characterized in that: it is by the motor (2) that is located on the base (1), the dynamic friction apparatus to cause bursting (5) that links to each other with motor (2), the infrared thermography (11) of monitoring dynamic friction apparatus to cause bursting (5) and data acquisition unit (12) constitute.
2. the experimental provision of rock frictional test actuation gas according to claim 1, it is characterized in that: described dynamic friction apparatus to cause bursting (5) comprises the seal closure (10) that is provided with mutual this filling orifice (4), be provided with the chuck (3) that rotation sample (6) is installed in the seal closure (10), chuck (3) front portion is provided with the balance bracket (8) of supporting rotation sample (6), and rotation sample (6) radial symmetry is provided with the pressue device that is fixed on the seal closure (10).
3. the experimental provision of rock frictional test actuation gas according to claim 2, it is characterized in that: described pressue device comprises sleeve pipe (16), be provided with the spring (15) that supports pressurized sample (7) in the sleeve pipe (16), its outside is provided with the rotation handgrip (17) that can accurately write down amount of spring compression.
4. the experimental provision of rock frictional test actuation gas according to claim 2 is characterized in that: be provided with gas in the described seal closure (10) and stir fan (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200352379U CN201007872Y (en) | 2007-03-06 | 2007-03-06 | Experimental device for detonating gas by rock friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200352379U CN201007872Y (en) | 2007-03-06 | 2007-03-06 | Experimental device for detonating gas by rock friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201007872Y true CN201007872Y (en) | 2008-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200352379U Expired - Fee Related CN201007872Y (en) | 2007-03-06 | 2007-03-06 | Experimental device for detonating gas by rock friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201007872Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879144A (en) * | 2012-10-09 | 2013-01-16 | 常州大学 | Method and device for measuring hyperpressure of flammable gas explosion shock waves |
| CN103133002A (en) * | 2013-02-05 | 2013-06-05 | 中国矿业大学 | Coal mining machine rotary drum rotary speed control method and coal mining machine rotary drum rotary speed control system |
| CN103778833A (en) * | 2012-10-22 | 2014-05-07 | 河南理工大学 | Novel gas-explosion demonstration device |
| CN107727488A (en) * | 2017-11-22 | 2018-02-23 | 中国工程物理研究院化工材料研究所 | A kind of multifactor explosive reaction instrument of multichannel |
| CN110261582A (en) * | 2019-07-19 | 2019-09-20 | 中煤科工集团重庆研究院有限公司 | Test method and device for gas detonation by rock friction |
| CN112326831A (en) * | 2020-11-03 | 2021-02-05 | 安徽理工大学 | Coal rock torsional friction comprehensive experiment system |
| CN112730515A (en) * | 2021-01-20 | 2021-04-30 | 湖南科技大学 | Experimental device and method for coal seam roof rupture and electric explosion |
| CN114441732A (en) * | 2021-08-10 | 2022-05-06 | 中国矿业大学 | Testing device and testing method for gas explosion caused by rock piezoelectric effect |
-
2007
- 2007-03-06 CN CNU2007200352379U patent/CN201007872Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879144A (en) * | 2012-10-09 | 2013-01-16 | 常州大学 | Method and device for measuring hyperpressure of flammable gas explosion shock waves |
| CN103778833A (en) * | 2012-10-22 | 2014-05-07 | 河南理工大学 | Novel gas-explosion demonstration device |
| CN103778833B (en) * | 2012-10-22 | 2016-07-20 | 河南理工大学 | A kind of gas explosion apparatus for demonstrating |
| CN103133002A (en) * | 2013-02-05 | 2013-06-05 | 中国矿业大学 | Coal mining machine rotary drum rotary speed control method and coal mining machine rotary drum rotary speed control system |
| CN103133002B (en) * | 2013-02-05 | 2014-11-19 | 中国矿业大学 | Coal shearer speed control method and device |
| CN107727488A (en) * | 2017-11-22 | 2018-02-23 | 中国工程物理研究院化工材料研究所 | A kind of multifactor explosive reaction instrument of multichannel |
| CN110261582A (en) * | 2019-07-19 | 2019-09-20 | 中煤科工集团重庆研究院有限公司 | Test method and device for gas detonation by rock friction |
| CN112326831A (en) * | 2020-11-03 | 2021-02-05 | 安徽理工大学 | Coal rock torsional friction comprehensive experiment system |
| CN112326831B (en) * | 2020-11-03 | 2022-08-16 | 安徽理工大学 | Coal rock torsional friction comprehensive experiment system |
| CN112730515A (en) * | 2021-01-20 | 2021-04-30 | 湖南科技大学 | Experimental device and method for coal seam roof rupture and electric explosion |
| CN114441732A (en) * | 2021-08-10 | 2022-05-06 | 中国矿业大学 | Testing device and testing method for gas explosion caused by rock piezoelectric effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 |