CN106837415A - A kind of device and method of prevention coal mining working face bump - Google Patents
A kind of device and method of prevention coal mining working face bump Download PDFInfo
- Publication number
- CN106837415A CN106837415A CN201710169484.6A CN201710169484A CN106837415A CN 106837415 A CN106837415 A CN 106837415A CN 201710169484 A CN201710169484 A CN 201710169484A CN 106837415 A CN106837415 A CN 106837415A
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- Prior art keywords
- vibration
- working face
- metal tube
- drilling
- coal mining
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
Abstract
A kind of device and method of prevention coal mining working face bump, device includes metal tube, tungsten electrode bar, vibration output pressing plate, ceramic insulation bushing and locking nut, and outer surface of metal pipe is provided with external screw thread.Method and step is：Two row hole drillings, metal tube precession foot of hole are bored on palisades；Tungsten electrode bar is connected metal tube；One row's tungsten electrode bar is connected with external power source positive pole, and another row's tungsten electrode bar is connected with external power source negative pole；Vibration is exported by vibrating output pressing plate, vibration passes to metal tube and is amplified by tungsten electrode bar, vibration after amplification is spread in rock mass, coal and rock will be loosened to peel off in advance, and form annular vibration band in exploitation working face, to be intercepted when digging impact shock is delivered to metal tube and weakened, while output vibration, opening external power source makes to produce electric field between two row's tungsten electrode bars, ring electric field is formed in exploitation working face outer ring, auxiliary weakens digging impact oscillation intensity, realizes the prevention of fault belt bump.
Description
Technical field
The invention belongs to technical field of mine safety, more particularly to a kind of prevention coal mining working face bump
Device and method.
Background technology
At present, the coal mine rock burst of China is closely related with geological conditions, and geologicstructure area bump
More than the 60% of sum is accounted for.With being continuously increased for coal mining depth, the bump of geologicstructure area in frequency and
Also it is being continuously increased in intensity, is being influenceed with observation is difficult to by coal and rock brokenness, is being occurred in fault region in recent years
Bump also increased, and occupy the larger specific gravity of construction bump, and this crushed zone rock blast hazard should be tight
The production safety of China's coal-mine is constrained again.
It was verified that when tunnelling enters shear-zone and the exploitation advance of the face to shear-zone, because tomography is broken
Broken rock stratum is relatively soft, crushes scope greatly, and the shock hazard that coal seam has is stronger, and under mining operation disturbance easily
Generation bump, in turn results in coal and rock and is caving suddenly, due to disguised strong, takes precautions against difficulty very big.
For this fault belt bump, because roadway's sides coal seam belongs to broken state, using routine
Monitoring method is difficult to quantitatively judge the stress of coal body, existing pre- for the strong crushed zone bump of this disguise
Anti- measure is accounted in terms of supporting, but during in face of more serious bump, the intensity of its supporting is to be difficult to
Prediction, the potential safety hazard for exploiting working face is still present, it is therefore desirable to consider dielectric property to carry out bump
Prevention.
The content of the invention
For the problem that prior art is present, the present invention provides a kind of device of prevention coal mining working face bump
And method, the impact shock in mining process can be effectively intercepted and weaken, so as to realize being rushed in source prevention fault belt
The generation pressed with hitting.
To achieve these goals, the present invention is adopted the following technical scheme that：One kind prevention coal mining working face impact ground
The device of pressure, including vibration diffusion metal tube, vibration baton pass, vibration output pressing plate, bushing and locking nut；The vibration is passed
Pass rod one end to be connected with vibration diffusion metal tube by screw thread, the vibration output pressing plate, bushing and locking nut are set with successively
In the vibration baton pass other end.
The vibration baton pass uses tungsten electrode bar, the bushing to use ceramic insulation bushing.
The vibration diffusion outer surface of metal pipe is provided with external screw thread.
A kind of method for preventing coal mining working face bump, employs described prevention coal mining working face punching
The device pressed with hitting, comprises the following steps：
Step one：Drilling operation is carried out on exploitation working face palisades, drilling is arranged on palisades in banding, and drilling is
Mutually stagger between two rows, and two row hole drillings, and in foot of hole machining internal thread；
Step 2：Outer surface is provided with externally threaded vibration diffusion metal tube precession foot of hole；
Step 3：To vibrate in baton pass insertion drilling and be connected in one with the vibration diffusion metal pipe screw thread in drilling
Rise；
Step 4：One vibration output pressing plate of suit, then covers upper bushing successively on two adjacent vibration baton passes
And locking nut, finally locking nut is screwed, now vibration output pressing plate is fixed；
Step 5：By the vibration baton pass in a wherein row hole drilling with wired in series together, and by the wire with it is outside
The positive pole of power supply is connected；By the vibration baton pass in another row hole drilling also with wired in series together, and by the wire with it is outer
The negative pole of portion's power supply is connected；
Step 6：Vibration is exported by vibrating output pressing plate, vibration passes to vibration diffusion first by vibrating baton pass
Metal tube, then be amplified by vibrating diffusion metal tube, and then the vibration after amplification is spread in coal and rock, when running into coal
During the loosening position of rock mass, the coal and rock of loosening can in advance be peeled off, while annular vibration band is formed in exploitation working face,
When the impact shock in mining process is delivered to vibration diffusion metal tube, the impact shock in mining process will be intercepted and cut
It is weak, and while vibration output pressing plate output vibration, external power source is opened, make to be produced between the vibration baton pass in two row hole drillings
Raw electric field, and ring electric field is formed in the outer ring of exploitation working face, to aid in weakening the impact shock intensity in mining process, most
The purpose of prevention fault belt bump is realized eventually.
The diameter range of the drilling is 20mm~40mm, and drilling depth scope is 5m~8m.
The spacing range between the drilling on same row is 300mm~400mm.
Row's spacing range between being drilled described in two rows is 200mm~300mm.
The length range of the vibration diffusion metal tube is 1m~3m.
It is described vibration diffusion metal tube precession foot of hole depth not less than vibration diffusion the length of metal tube 1 three/
Two.
Beneficial effects of the present invention：
The present invention compared with prior art, can effectively intercept and weaken the impact shock in mining process, so as to realize
In the generation of source prevention fault belt bump.
Brief description of the drawings
Fig. 1 is a kind of apparatus structure schematic diagram of prevention coal mining working face bump of the invention；
Fig. 2 is the A direction views in Fig. 1；
In figure, 1-vibration diffusion metal tube, 2-vibration baton pass, 3-vibration output pressing plate, 4-bushing, 5-locking
Nut, 6-wire, 7-palisades, 8-drilling.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
A kind of as shown in Figure 1, 2, device of prevention coal mining working face bump, including vibration diffusion metal tube 1,
Vibration baton pass 2, vibration output pressing plate 3, bushing 4 and locking nut 5；Described vibration baton pass 2 one end is by screw thread and vibration
Diffusion metal tube 1 is connected, and it is another that the vibration output pressing plate 3, bushing 4 and locking nut 5 are sleeved on vibration baton pass 2 successively
End.The vibration baton pass 2 uses tungsten electrode bar, the bushing 4 to use ceramic insulation bushing.In the vibration diffusion metal tube
1 outer surface is provided with external screw thread.
A kind of method for preventing coal mining working face bump, employs described prevention coal mining working face punching
The device pressed with hitting, comprises the following steps：
Step one：Drilling operation is carried out on exploitation working face palisades, drilling is arranged on palisades in banding, and drilling is
Mutually stagger between two rows, and two row hole drillings, and in foot of hole machining internal thread；The diameter range of the drilling be 20mm~
40mm, drilling depth scope is 5m~8m；The spacing range between the drilling on same row is 300mm~400mm；Two rows
Row's spacing range between the drilling is 200mm~300mm；
Step 2：Outer surface is provided with the externally threaded vibration diffusion precession foot of hole of metal tube 1；The vibration diffusion
The length range of metal tube 1 is 1m~3m；The depth of the vibration diffusion precession foot of hole of metal tube 1 spreads not less than vibration
2/3rds of the length of metal tube 1；
Step 3：Baton pass 2 will be vibrated to insert in drilling and be connected in one with the vibration diffusion screw thread of metal tube 1 in drilling
Rise；
Step 4：One vibration output pressing plate 3 of suit, then puts lining successively on two adjacent vibration baton passes 2
Set 4 and locking nut 5, finally screw locking nut 5, and now vibration output pressing plate 3 is fixed；
Step 5：Vibration baton pass 2 in a wherein row hole drilling is cascaded with wire 6, and by the wire 6 with it is outer
The positive pole of portion's power supply is connected；Vibration baton pass 2 in another row hole drilling is also cascaded with wire 6, and by the wire 6
It is connected with the negative pole of external power source；
Step 6：Vibrated by vibrating to export pressing plate 3 and export, vibration passes to vibration expansion first by vibrating baton pass 2
Dispersed metallic pipe 1, then be amplified by vibrating diffusion metal tube 1, and then the vibration after amplification is spread in coal and rock, work as chance
To coal and rock loosening position when, the coal and rock of loosening can in advance be peeled off, while forming annular and shaking in exploitation working face
Dynamic band, when the impact shock in mining process is delivered to vibration diffusion metal tube 1, the impact shock in mining process will be blocked
Cut and weaken, and while the vibration output output vibration of pressing plate 3, open external power source, transmit the vibration in two row hole drillings
Electric field is produced between rod 2, and ring electric field is formed in the outer ring of exploitation working face, to aid in the impact in weakening mining process to shake
Fatigue resistance, the final purpose for realizing prevention fault belt bump.
Scheme in embodiment and being not used to limits scope of patent protection of the invention, it is all without departing from carried out by the present invention etc.
Effect is implemented or is changed, and is both contained in the scope of the claims of this case.
Claims (9)
1. it is a kind of prevent coal mining working face bump device, it is characterised in that：Including vibration diffusion metal tube, vibration
Baton pass, vibration output pressing plate, bushing and locking nut；Described vibration baton pass one end is by screw thread and vibration diffusion metal tube
It is connected, the vibration output pressing plate, bushing and locking nut are sleeved on the vibration baton pass other end successively.
2. it is according to claim 1 it is a kind of prevent coal mining working face bump device, it is characterised in that：It is described
Vibration baton pass uses tungsten electrode bar, the bushing to use ceramic insulation bushing.
3. it is according to claim 1 it is a kind of prevent coal mining working face bump device, it is characterised in that：Institute
State vibration diffusion outer surface of metal pipe and be provided with external screw thread.
4. the method for preventing coal mining working face bump, employs the prevention coal mining work described in claim 1
The device of face bump, it is characterised in that comprise the following steps：
Step one：Drilling operation is carried out on exploitation working face palisades, drilling is arranged on palisades in banding, and it is two to drill
Row, and mutually stagger between two row hole drillings, and in foot of hole machining internal thread；
Step 2：Outer surface is provided with externally threaded vibration diffusion metal tube precession foot of hole；
Step 3：To vibrate in baton pass insertion drilling and be fixed together with the vibration diffusion metal pipe screw thread in drilling；
Step 4：One vibration output pressing plate of suit, then covers upper bushing and lock successively on two adjacent vibration baton passes
Tight nut, finally screws locking nut, and now vibration output pressing plate is fixed；
Step 5：By the vibration baton pass in a wherein row hole drilling with wired in series together, and by the wire and external power source
Positive pole be connected；By the vibration baton pass in another row hole drilling also with wired in series together, and by the wire and external electrical
The negative pole in source is connected；
Step 6：Vibration is exported by vibrating output pressing plate, vibration passes to vibration diffusion metal first by vibrating baton pass
Pipe, then be amplified by vibrating diffusion metal tube, and then the vibration after amplification is spread in rock mass, when running into coal and rock
When loosening position, the rock mass of loosening can in advance be peeled off, while annular vibration band is formed in exploitation working face, when digging
When impact shock in journey is delivered to vibration diffusion metal tube, the impact shock in mining process will be intercepted and be weakened, and
While vibration output pressing plate output vibration, external power source is opened, makes to produce electric field between the vibration baton pass in two row hole drillings,
And ring electric field is formed in the outer ring of exploitation working face, it is final to realize to aid in weakening the impact shock intensity in mining process
Prevent the purpose of fault belt bump.
5. it is according to claim 4 it is a kind of prevent coal mining working face bump method, it is characterised in that：It is described
The diameter range of drilling is 20mm~40mm, and drilling depth scope is 5m~8m.
6. it is according to claim 4 it is a kind of prevent coal mining working face bump method, it is characterised in that：It is same
The spacing range between the drilling on row is 300mm~400mm.
7. it is according to claim 4 it is a kind of prevent coal mining working face bump method, it is characterised in that：Two rows
Row's spacing range between the drilling is 200mm~300mm.
8. it is according to claim 4 it is a kind of prevent coal mining working face bump method, it is characterised in that：It is described
The length range of vibration diffusion metal tube is 1m~3m.
9. it is according to claim 4 it is a kind of prevent coal mining working face bump method, it is characterised in that：It is described
2/3rds of the depth of vibration diffusion metal tube precession foot of hole not less than the vibration diffusion length of metal tube 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169484.6A CN106837415B (en) | 2017-03-21 | 2017-03-21 | A kind of device and method preventing coal mining working face bump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169484.6A CN106837415B (en) | 2017-03-21 | 2017-03-21 | A kind of device and method preventing coal mining working face bump |
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| CN106837415A true CN106837415A (en) | 2017-06-13 |
| CN106837415B CN106837415B (en) | 2018-10-12 |
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| CN201710169484.6A Expired - Fee Related CN106837415B (en) | 2017-03-21 | 2017-03-21 | A kind of device and method preventing coal mining working face bump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952809A (en) * | 2018-07-11 | 2018-12-07 | 黑龙江科技大学 | A method of prevention and treatment bump is guided using energy |
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|---|---|---|---|---|
| SU1481401A1 (en) * | 1987-09-08 | 1989-05-23 | Кузбасский Политехнический Институт | Method of monitoring water saturation of coal beds |
| CN101936162A (en) * | 2010-04-16 | 2011-01-05 | 兖州煤业股份有限公司 | Method for preventing rock burst of bottom plate of layered tunnel in tectonic stress region of coal mine |
| CN102877870A (en) * | 2012-10-18 | 2013-01-16 | 湖南科技大学 | Static and dynamic combined intelligent pre-warning anchor rod |
| CN103061781A (en) * | 2013-01-24 | 2013-04-24 | 辽宁工程技术大学 | Method for preventing rock burst by manually regulating tunnel surrounding rock support energy dissipation damping characteristics |
| CN106368705A (en) * | 2016-10-20 | 2017-02-01 | 山东科技大学 | Method for controlling rock burst during roadway tunneling in fault fracture zone |
| CN106501857A (en) * | 2016-11-02 | 2017-03-15 | 中国矿业大学 | A kind of dangerous acoustic monitoring method of coal mine roadway bump |
-
2017
- 2017-03-21 CN CN201710169484.6A patent/CN106837415B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1481401A1 (en) * | 1987-09-08 | 1989-05-23 | Кузбасский Политехнический Институт | Method of monitoring water saturation of coal beds |
| CN101936162A (en) * | 2010-04-16 | 2011-01-05 | 兖州煤业股份有限公司 | Method for preventing rock burst of bottom plate of layered tunnel in tectonic stress region of coal mine |
| CN102877870A (en) * | 2012-10-18 | 2013-01-16 | 湖南科技大学 | Static and dynamic combined intelligent pre-warning anchor rod |
| CN103061781A (en) * | 2013-01-24 | 2013-04-24 | 辽宁工程技术大学 | Method for preventing rock burst by manually regulating tunnel surrounding rock support energy dissipation damping characteristics |
| CN106368705A (en) * | 2016-10-20 | 2017-02-01 | 山东科技大学 | Method for controlling rock burst during roadway tunneling in fault fracture zone |
| CN106501857A (en) * | 2016-11-02 | 2017-03-15 | 中国矿业大学 | A kind of dangerous acoustic monitoring method of coal mine roadway bump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952809A (en) * | 2018-07-11 | 2018-12-07 | 黑龙江科技大学 | A method of prevention and treatment bump is guided using energy |
| CN108952809B (en) * | 2018-07-11 | 2020-01-14 | 黑龙江科技大学 | Method for preventing rock burst by energy guide |
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| CN106837415B (en) | 2018-10-12 |
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