CN203271639U - Gas content spot sampling device - Google Patents
Gas content spot sampling device Download PDFInfo
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- CN203271639U CN203271639U CN 201320187398 CN201320187398U CN203271639U CN 203271639 U CN203271639 U CN 203271639U CN 201320187398 CN201320187398 CN 201320187398 CN 201320187398 U CN201320187398 U CN 201320187398U CN 203271639 U CN203271639 U CN 203271639U
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- wind chamber
- hollow drill
- bearing capacity
- ash discharge
- fixed point
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Abstract
The utility model relates to a gas content spot sampling device. In the process that an air draft mechanism continuously carries out air draft on a hollow drill rod, through a wind chamber, a sampling cup is placed in the wind chamber, and a coal seam is analyzed by means of coal seam particles in the wind chamber serving as samples in a deep portion of the coal seam. The gas content spot sampling device not only enables air draft dustproof effects to be greatly improved, but also can collect the deep coal seam particles obtained by an air draft drill into the sampling cup to be researched and analyzed, and has a simple operating mode and high sampling accuracy. The wind chamber can filter dust and prevents the dust from directly entering the air draft mechanism, the accumulated dust can be exhausted at regular intervals, no dust is produced in a working environment, body health of workers is guaranteed, and the gas content spot sampling device is very beneficial to popularization and application.
Description
Technical field
The utility model relates to a kind of coal mining with drilling tool improvement technology in the field, particularly relate to a kind of can be to the device of the fixed sampling of gas bearing capacity.
Background technology
Threaten the safety of coal mining due to gas, the gas in coal mine down-hole tunnel wall pump drainage coal seam becomes one important step before coal mining.To some weak seams, can only dry method hole, adopt compressed air drifting dust technique, the coal dust and the compressed air that produce when making boring spray along the gap between drilling rod and hole wall together.The compressed air of drifting dust process using has great impact energy (the too little drifting dust effect that do not have of impact force), and the gas shock power of formation is strong, and the band dust quantity is up to 3000mg/m
3, cause the environment of work plane very abominable, the serious threat operating personnel's is healthy.Because colliery poor management and miner follow the line of least resistance, often be not with and wear dust mask, to the healthy serious infringement that causes of workman, therefore a lot of coal miners got pneumoconiosis.Simultaneously, ejection air-flow gas density is high, runs into the danger that the conditions such as high temperature, static, naked light have coal-dust explosion.Be to improve the safety in production requirement, the huge Dust Capacity that drifting dust produces must be processed by depositing dust, and forbids that exhaust fan, dust-removing method are restricted the problem that causes dust-laying effect not good enough during depositing dust.In order to improve the serious problem of environmental pollution in dry method boring, present way is that the aperture dust arrester of drilling rod sleeve pipe is set in the aperture of dry method boring, small casing gos deep into the coal seam, large sleeve pipe is pressed close to the tunnel wall, compressed-air actuated drifting dust enters large sleeve pipe along the gap ejection between sliding drilling rod and small casing, and at large sleeve pipe internal spraying depositing dust, efficiency of dust collection is between 50%～60%, although dust-laying effect is obvious, be difficult to reach working envrionment sanitary standard.the problems that boring exists for air blast, publication number is that CN102168534A exhausting is bored, this exhausting is bored and is wanted to reach the purpose that dirt is taken out in air draught, can't application implementation yet there is more problem in this application, one of its problem is: this drilling rod and drive part are integrated, and drilling rod needs constantly automatically advance forward during actual the use, the dark large tens of rice of boring in coal mining field rice even up to a hundred, drilling rod needs constantly to replenish prolongation could be continued forward deeply, must rely on the whole driving box of Manual-pushing to move ahead together with drilling rod in this application, be unfavorable for the drilling rod replacing, need to repeatedly pass the drilling rod driving box during work, feasibility is very poor.Two of its problem is: because hollow drill bit can be passed dust granules backward in the moving process of brill, and the dynamics of exhausting is different from blowing, this application exhausting when implementing only limits to the dust granules in hollow drill bit the place ahead, the drilling rod sidewall exists more dust granules to take away, causing drilling through work often is interrupted, can't effectively implement, to such an extent as to the utility model people has proposed new improvement project.In addition, also there is no at present the effective especially instrument for pre-exploitation colliery deep layer spot sampling.
The utility model content
The problem and shortage that exists for overcoming prior art, the utility model provides a kind of field, colliery that can effectively be implemented on to drilling in coal work, and effective gas bearing capacity device for fixed point sampling.
Technical scheme: a kind of gas bearing capacity device for fixed point sampling, it is characterized in that: comprise hollow drill pipe, hollow drill bit, hydraulic drill rig, support, and drainage system, hollow drill pipe is rack-mount and be in transmission connection with hydraulic drill rig, wherein, axial extract opening is set in hollow drill bit, be provided with simultaneously the radial axle gas port on hollow drill pipe, the hollow drill pipe rear end is connected with air draft mechanism with air delivering pipeline by revolving joint.
A wind chamber is set on air delivering pipeline, is provided with sampling cup in wind chamber.
The below of described wind chamber is provided with the ash discharge passage, and described ash discharge passage is on the wind chamber base plate, through hole to be set, and a side of ash discharge baffle plate is hinged on a side of through hole, between ash discharge baffle plate opposite side and base plate, locking knob is set; Be provided with grid at ash discharge baffle plate upside, described sampling cup is positioned on grid, is provided with door simultaneously on the sidewall of wind chamber bottom.
One side of described door is with wind chamber is side walls hinged and grid is fixed on the through hole of wind chamber base plate, perhaps described door and the grid formation drawing and pulling type structure that is fixed as one.
Be provided with support at described wind chamber downside, be provided with crossbeam on support, hinged support bar one and support bar two, two support bars are parallel and two post uppers are hinged on respectively the both sides of ash discharge baffle plate simultaneously on crossbeam, described sampling cup is positioned at and is positioned on the ash discharge baffle plate.
Be provided with the return spring that is connected with support on support bar one or support bar two.
Filter screen also is installed on the air outlet of wind chamber, and perhaps the air outlet cover at extraction sector is equipped with filter bag, is provided with ventilative micropore on filter bag.
Can also be provided with atomization mechanism at the wind chamber top of wind chamber.
The beneficial effects of the utility model:
1, air draught of the present utility model is bored, not only can carry out exhausting by the centre bore in hollow drill bit the place ahead, can also carry out exhausting by the radial axle gas port of hollow drill pipe sidewall, the radial axle gas port of hollow drill pipe sidewall has been born most dust discharging task, and exhausting dust discharge effect is greatly improved.Simultaneously be provided with wing plate at radial axle gas port front end, wing plate can be smashed the bulk colliery and water conservancy diversion enters in the radial axle gas port, thereby prevents that the bulk coal cinder from may stop up the problem of boring inner chamber, and makes that to take out the dirt flow more smooth and easy, has improved the dust discharge effect.
2, the utility model is provided with sampling mechanism in wind chamber, and the deep layer coal particle that the exhausting brill can be obtained is collected and carried out research and analysis in sampling cup, and mode of operation is simple, and the sampling accuracy rate is high.
3, the wind chamber of the utility model setting can filter dust, avoids dust directly to enter air draft mechanism, and the dust of accumulation can regularly emit.
4, the utility model is simple and reasonable, easily processing and manufacturing, and feasibility is strong, and dust discharge is effective, makes the non-dusting generation of working environment, guarantees that the workman is healthy, is beneficial to very much promotion and implementation.
Description of drawings
Fig. 1 is the structural representation of the utility model gas bearing capacity device for fixed point sampling;
Fig. 2 is the another kind of structural representation of wind chamber in Fig. 1.
Number in the figure 1 is hollow drill bit, and 2 is wing plate, and 3 is the radial axle gas port, and 4 is hollow drill pipe, 5 is hydraulic drill rig and support, and 6 is revolving joint, and 7 for taking out the dirt pipe, and 8 is wind chamber, 9 is dividing plate, and 10 are the ash discharge baffle plate, and 11 is locking knob, and 12 is exhaust column, 13 is air outlet pipeline, and 14 is negative pressure chamber, and 15 is engine, and 18 is drainage system, 19 is door, and 20 is sampling cup, and 21 is that support bar one, 22 is support bar two, 23 is return spring, and 24 is grid, and 25 is support, and 26 is crossbeam.
The specific embodiment
Embodiment 1: a kind of gas bearing capacity spot sampling method, utilize hydraulic drill rig that hollow drill pipe is carried hollow drill bit and pierce the coal seam depth location, utilize air draft mechanism constantly to the hollow drill pipe exhausting, axial extract opening not only is set in hollow drill bit, simultaneously be positioned at the uniform radial axle gas port that is provided with of hollow drill bit rear side on hollow drill pipe, also be provided with the wing plate with axially parallel between hollow drill pipe and radial axle gas port.In the exhausting process, be connected with air draft mechanism again after will being connected a wind chamber with the coal seam particle through the air of hollow drill pipe, be divided into particle deposition chamber and wind chamber in wind chamber, both are communicated with the bottom, reach with sample level before, with all emptying and sealings of the coal seam particle in wind chamber, in the sample level drilling process or after drilling process, the coal seam particle of particle deposition chamber is analyzed the coal seam as the sample of depths, coal seam.The air intake of wind chamber and air outlet are separately positioned on particle deposition chamber and wind chamber upside, and are provided with the ash discharge passage below the particle deposition chamber, are sealed and installed with the ash discharge baffle plate on the ash discharge passage.
Embodiment 2: referring to Fig. 1, and a kind of gas bearing capacity device for fixed point sampling, by hollow drill pipe 4, hollow drill bit 1, hydraulic drill rig and support 5, the compositions such as air draft mechanism and drainage system 18.Wherein, hollow drill pipe 4 accumbency are rack-mount and be in transmission connection with hydraulic drill rig.Hollow drill bit 1 is arranged on the front end of hollow drill pipe 4, axial extract opening is set in hollow drill bit, hollow drill pipe 4 is provided with radial axle gas port 3 by on the sidewall of the last period (being positioned at the hollow drill bit rear side) simultaneously, the uniform multi-disc wing plate 2 that is provided with on one section hollow drill pipe sidewall between hollow drill bit 1 and radial axle gas port 3, wing plate 2 is parallel with axis and have a certain-length, wing plate 2 also can be staggered front to back and distributes or be interspersed by height, wing plate 2 herein plays to be smashed than gathering coal and guide functions, so that radial axle gas port 3 plays the effect that the best is taken out dust.
Hollow drill pipe 4 rear ends by revolving joint 6 with take out dirt pipe 7 tunnel and be connected, take out dirt pipe 7 tunnel and be communicated with a wind chamber 8.
The air outlet of wind chamber 8 upper ends is connected with air draft mechanism by exhaust column 12, and filter screen can also be installed on the air outlet of wind chamber 8.Air draft mechanism comprises negative pressure chamber 14 and engine 15, and engine 15 drives worm gear rotation generation negative pressure draft effect in negative pressure chamber.The air outlet of described air draft mechanism is connected with drainage system, can also be provided with atomization mechanism at the wind chamber top of wind chamber.
Embodiment 3: accompanying drawing is not drawn, and content is substantially the same manner as Example 2, and something in common does not repeat, and different is: when the door of the sidewall bottom wind chamber is side walls hinged with wind chamber, is fixed together with grid again and forms the drawing and pulling type structure.
Embodiment 4: referring to Fig. 2, content is substantially the same manner as Example 2, something in common does not repeat, different is: be provided with support 25 at described wind chamber 8 downsides, be provided with crossbeam 26 on support 25, hinged support bar 1 and support bar 2 22, two support bars are parallel and two post uppers are hinged on respectively the both sides of ash discharge baffle plate 10 simultaneously on crossbeam 26, described sampling cup 20 is positioned on ash discharge baffle plate 10.Be provided with the return spring 23 that is connected with support on support bar 1 or support bar 2 22.When release screws button 11, can drive support bar 21 or support bar 22 and make that ash discharge baffle plate 10 is parallel to be moved down, shift out outside dust cleaning case thereby drive sampling cup 20.
Claims (8)
1. gas bearing capacity device for fixed point sampling, it is characterized in that: comprise hollow drill pipe, hollow drill bit, hydraulic drill rig, support, and drainage system, hollow drill pipe is rack-mount and be in transmission connection with hydraulic drill rig, wherein, axial extract opening is set in hollow drill bit, be provided with simultaneously the radial axle gas port on hollow drill pipe, the hollow drill pipe rear end is connected with air draft mechanism with air delivering pipeline by revolving joint.
2. gas bearing capacity device for fixed point sampling according to claim 1, is characterized in that: a wind chamber is set on air delivering pipeline, is provided with sampling cup in wind chamber.
3. gas bearing capacity device for fixed point sampling according to claim 2, it is characterized in that: the below of described wind chamber is provided with the ash discharge passage, and described ash discharge passage is on the wind chamber base plate, through hole to be set, one side of ash discharge baffle plate is hinged on a side of through hole, between ash discharge baffle plate opposite side and base plate, locking knob is set; Be provided with grid at ash discharge baffle plate upside, described sampling cup is positioned on grid, is provided with door simultaneously on the sidewall of wind chamber bottom.
4. gas bearing capacity device for fixed point sampling according to claim 3 is characterized in that: a side of described door is with wind chamber is side walls hinged and grid is fixed on the through hole of wind chamber base plate, perhaps described door and the grid formation drawing and pulling type structure that is fixed as one.
5. gas bearing capacity device for fixed point sampling according to claim 2, it is characterized in that: be provided with support at described wind chamber downside, be provided with crossbeam on support, while hinged support bar one and support bar two on crossbeam, parallel and two post uppers of two support bars are hinged on respectively the both sides of ash discharge baffle plate, and described sampling cup is positioned at and is positioned on the ash discharge baffle plate.
6. gas bearing capacity device for fixed point sampling according to claim 5, is characterized in that: be provided with the return spring that is connected with support on support bar one or support bar two.
7. gas bearing capacity device for fixed point sampling according to claim 2, it is characterized in that: filter screen also is installed on the wind chamber air outlet, and perhaps the air outlet cover of air draft mechanism is equipped with filter bag, is provided with ventilative micropore on filter bag.
8. gas bearing capacity device for fixed point sampling according to claim 2 is characterized in that: the wind chamber top at wind chamber is provided with atomization mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187398 CN203271639U (en) | 2013-04-15 | 2013-04-15 | Gas content spot sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187398 CN203271639U (en) | 2013-04-15 | 2013-04-15 | Gas content spot sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271639U true CN203271639U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187398 Expired - Fee Related CN203271639U (en) | 2013-04-15 | 2013-04-15 | Gas content spot sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594260A (en) * | 2020-06-03 | 2020-08-28 | 徐州工程学院 | Device for cleaning residual coal dust in hole sealing section of coal seam drilling |
-
2013
- 2013-04-15 CN CN 201320187398 patent/CN203271639U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594260A (en) * | 2020-06-03 | 2020-08-28 | 徐州工程学院 | Device for cleaning residual coal dust in hole sealing section of coal seam drilling |
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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: 20131106 Termination date: 20170415 |
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| CF01 | Termination of patent right due to non-payment of annual fee |