CN206707754U - A kind of coal mine drilling water filling slag-draining device - Google Patents
A kind of coal mine drilling water filling slag-draining device Download PDFInfo
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- CN206707754U CN206707754U CN201720449847.7U CN201720449847U CN206707754U CN 206707754 U CN206707754 U CN 206707754U CN 201720449847 U CN201720449847 U CN 201720449847U CN 206707754 U CN206707754 U CN 206707754U
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Abstract
The utility model discloses a kind of coal mine drilling water filling slag-draining device, pumping plant including being provided with pumping plant water tank, the pressure control device being connected with pumping plant and pumping plant water tank by pipeline, described pressure control device connect one end of sealing drilling rod by the second water under high pressure pipeline；The other end of described sealing drilling rod is provided with waterpower drill bit；Drilling protector is provided with described sealing drilling rod；Sealing drilling rod is arranged on the rig in tunnel.The utility model introduces water jet theory, make hydraulic flushing in hole pumping plant, pressure control device, automatic conversion drill bit etc. and organically combined with rig, realize that rock drilling hole is integrated with rushing coal hole, reach anti-reflection to working face coal mass relief, improve drawing-off gas effect.Whole device minimizes, and with drilling-machine shifter, can once complete to the rock drilling of gas extraction hole and rush coal hole, improve drilling efficiency.Be widely portable to high gassy and low permeability coal seam it is pre- take out, pressure-relief outburst-prevention etc..
Description
Technical field
It the utility model is related to suitable for engineerings such as the water filling deslagginves of job location such as mine, tunnel, be specially a kind of use
In high gassy and low permeability coal seam it is pre- take out, the coal mine drilling water filling slag-draining device of pressure-relief outburst-prevention etc..
Background technology
Coal mine gas, also known as coal-bed gas (gas of coalseam), coal bed gas.The methane that is escaped from coal and country rock,
The mixed gas of the composition such as carbon dioxide and nitrogen.Gas is the adverse factor in coal production, and it not only pollutes air, and works as
When gas bearing capacity is 5% ~ 16% in air, meeting fire can set off an explosion, and cause the accident.
Occurrence form of the gas in coal seam mainly has two states:Gas in osmotic space is in mainly free gas
State, referred to as free gas or free gas, the gas of this state obey The Ideal-Gas Equation;Another kind is referred to as absorption watt
This, interparticle of its primary attachment on the micropore surface of coal and in coal, in occupation of the room of molecular structure of coal or coal molecule
Between space.Actual measurement shows that coal seam adsorption gas amount accounts for 70% ~ 95% (within 1000 ~ 2000m) under mining depth, and swims
5% ~ 30% is accounted for from gas amount.
Miner is greatly still threaten with coal-fired today for main power source, coal mine gas explosion at present in China
Life security, water filling dreg removing system imperfection is old-fashioned heavy and fall behind, and directly affects mine safety production and the life of miner
Life health and Economy of Mine Regions benefit.
Therefore, the existing water filling residue extraction mechanism suitable for colliery is improved, has been a good problem to study.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides one kind and realizes rock drilling hole and rush coal hole one
Body, reach anti-reflection to working face coal mass relief, improve drawing-off gas effect, and package unit minimizes, can with drilling-machine shifter
Once complete to the rock drilling of gas extraction hole and rush coal hole, improve the coal mine drilling water filling slag-draining device of drilling efficiency.
What the purpose of this utility model was realized in：
A kind of coal mine drilling water filling slag-draining device, including the pumping plant 10 of pumping plant water tank 9 is provided with, with pumping plant 10 and pumping plant
The pressure control device 6 that water tank 9 is connected by pipeline, described pressure control device 6 are connected close by the second water under high pressure pipeline 5
One end of seal drill rod 2；The other end of described sealing drilling rod 2 is provided with waterpower drill bit 1；It is provided with described sealing drilling rod 2
Drill protector 3；Sealing drilling rod 2 is arranged on the rig 12 in tunnel 13；
Pipeline between described pumping plant 10 and pressure control device 6 is the first water under high pressure pipeline 7；
Pipeline between described pumping plant water tank 9 and pressure control device 6 is water return pipeline 8；
The second described water under high pressure pipeline 5 is connected by being arranged on the water under high pressure pigtail 4 of the one end of sealing drilling rod 2 with sealing drilling rod 2
Connect；
Slag-drip opening 11 is provided with described drilling protector 3, while is connected with gas drainage pipe；
Described pressure control device 6 includes the switching valve e being connected with pumping plant 10；Switching valve e passes through pressure control device
Low pressure line f and pressure control device pressure duct g connects with being connected the second water under high pressure pipeline 5 of sealing drilling rod 2；
Low pressure pressure limiting valve d and check valve c are provided with described pressure control device low pressure line f；
High-pressure limiting valve a and pressure gauge b are provided with described pressure control device pressure duct g；
Described waterpower drill bit 1 includes 3 wing bit bodys 22, and the drill bit being arranged on 3 wing bit bodys 22 is tightly connected
Box 14；Described drill bit is tightly connected box 14 and connects sprayer body 21, and nozzle body 20 is provided with described sprayer body 21, sprays
Mouth body 20 and drill bit are provided with nozzle gland 15 between being tightly connected box 14；It is provided with described nozzle body 20 positioned at nozzle
The gasket seal 16 of the top of gland 15, the nozzle guiding valve 17 above gasket seal 16, compression is provided with nozzle guiding valve 17
Spring 18；Nozzle body 20 connects the high pressure nozzle 19 being arranged on sprayer body 21；
Combination mat 23 is provided between described high pressure nozzle 19 and sprayer body 21.
Positive beneficial effect：1st, rapid outburst elimination stone door punching coal：Reaming drilling is arranged in crossdrift, passes through reaming measure
Implement, to the effective radius of influence of purpose coal seam pressure relief and permeability improvement → increase single hole → raising gas rate of release and discharge efficiency, together
When reduce quantities → shortening exposed coal time；2nd, layer-through drilling gas pre-drainage：Wear lithosphere and waterpower punching is carried out to purpose coal seam
Hole, it is anti-reflection to the regional overall release of the effective radius of influence of purpose coal seam pressure relief and permeability improvement → raising single hole → realization → to improve extraction
Effect and Drained rate；3rd, working face is taken out and extinction in advance：Working face is taken out in advance includes two driving, back production aspects with extinction.To work
Square coal body implementation bore expanded hole integration measure in front → the effective overall release of the radius of influence → regionality of raising single hole is anti-reflection →
Crustal stress, Elastic latent energy and gas interior energy are released → eliminated outburst hazard → realization safety in production；In use above,
The present apparatus can drill in conventional wet type（Low pressure water state）And high-pressure hydraulic rushes coal hole（High pressure water state）Between two states mutually
Mutually change, greatly improve operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the present apparatus；
Fig. 2 is pressure control device hydraulic schematic diagram；
Fig. 3 is waterpower drill bit structure schematic diagram；
It is in figure：Waterpower drill bit 1, sealing drilling rod 2, drilling protector 3, water under high pressure pigtail 4, the second water under high pressure pipeline 5, pressure
Control device 6, the first water under high pressure pipeline 7, water return pipeline 8, pumping plant water tank 9, pumping plant 10, slag-drip opening 11, rig 12, tunnel 13,
Drill bit is tightly connected box 14, nozzle gland 15, gasket seal 16, nozzle guiding valve 17, compression spring 18, high pressure nozzle 19, spray
Mouth body 20, sprayer body 21,3 wing bit bodys 22, combination mat 23.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described further：
As shown in figure 1, a kind of coal mine drilling water filling slag-draining device, including the pumping plant 10 of pumping plant water tank 9 is provided with, with pump
Stand 10 pressure control devices 6 connected with pumping plant water tank 9 by pipeline, described pressure control device 6 passes through the second water under high pressure
Pipeline 5 connects one end of sealing drilling rod 2；The other end of described sealing drilling rod 2 is provided with waterpower drill bit 1；Described sealing is bored
Drilling protector 3 is provided with bar 2；Sealing drilling rod 2 is arranged on the rig 12 in tunnel 13；
Pipeline between described pumping plant 10 and pressure control device 6 is the first water under high pressure pipeline 7；
Pipeline between described pumping plant water tank 9 and pressure control device 6 is water return pipeline 8；
The second described water under high pressure pipeline 5 is connected by being arranged on the water under high pressure pigtail 4 of the one end of sealing drilling rod 2 with sealing drilling rod 2
Connect；
Slag-drip opening 11 is provided with described drilling protector 3, while is connected with gas drainage pipe；
As shown in Fig. 2 described pressure control device 6 includes the switching valve e being connected with pumping plant 10；Switching valve e passes through pressure
Force control device low pressure line f and pressure control device pressure duct g connects with being connected the second water under high pressure pipeline 5 of sealing drilling rod 2
Connect；
Low pressure pressure limiting valve d and check valve c are provided with described pressure control device low pressure line f；
High-pressure limiting valve a and pressure gauge b are provided with described pressure control device pressure duct g；
As shown in figure 3, described waterpower drill bit 1 includes 3 wing bit bodys 22, and the brill being arranged on 3 wing bit bodys 22
Head is tightly connected box 14；Described drill bit is tightly connected box 14 and connects sprayer body 21, is provided with described sprayer body 21
Nozzle body 20, nozzle body 20 and drill bit are provided with nozzle gland 15 between being tightly connected box 14；Set in described nozzle body 20
It is equipped with the gasket seal 16 positioned at the top of nozzle gland 15, the nozzle guiding valve 17 above gasket seal 16, nozzle guiding valve 17
On be provided with compression spring 18；Nozzle body 20 connects the high pressure nozzle 19 being arranged on sprayer body 21；
Combination mat 23 is provided between described high pressure nozzle 19 and sprayer body 21.
Coal mine drilling is drilled technique with water filling slag-draining device using rig, can be set by voltage operated device when rock drilling rock layers
It is low pressure water to be set to drill bit water outlet, now away drill cuttings rock drilling, and water plays a part of cooling down and lubricates drill bit blade, and rushes discharge
Landwaste powder；When penetrating lithosphere and seeing coal seam, it is water under high pressure that can easily be converted to drill bit water outlet by voltage operated device, now
Away drill cuttings are substantially zero load, and the high pressure nozzle on the drill bit of rotation radially sprays high-speed water jet, carry out waterpower and rush coal hole work
Industry.The height of hydraulic pressure determine to go out the diameter in coal hole and rush coal output number, it is adjustable that the present apparatus rushes coal pore pressure force, goes out
Coal boring ratio drill out big, increase coal body exposed area, make release inside coal seam, gas release, form one by " point "
To " line ", by " line " to " face ", the distressed zone by " face " to " entirety ", expand coal seam pressure relief scope, improve coal body gas permeability, tool
There is wide applicability.
As shown in figure 3, drill bit current have two-way 1 when normal low pressure is drilled：Water flows through nozzle from the hole in nozzle gland and slided
Valve mesopore and from 4 radial holes on guiding valve（Damping hole）The space of gasket seal upper end is flowed to, is sprayed by gasket seal upper end
4 holes on mouth body flow to nozzle body top, then flow to 5 original macropores of chisel edge（Cooling and lubrication blade）；2：
2nd road water flows to compression spring room by nozzle guiding valve front end aperture, then flows to two nozzles in left and right and flows out.Due to there is resistance
Buddhist nun hole, so there is certain pressure F1 nozzle guiding valve inside and rear end（Flow and pressure influence of this pressure by water）, when F1 is small
When spring force, nozzle guiding valve state as shown（Low-pressure state）, otherwise, nozzle guiding valve moves up shifts nozzle body onto gasket seal
On, 4 holes on the nozzle body of gasket seal upper end are blocked, block the 1st road current, now whole the second tunnels of current direction path is
High pressure nozzle sprays, and is now high pressure conditions（Whole device pressure rises to 8MPa）.
As shown in Fig. 2 when switching valve is in low pressure, the water from pumping plant by the left side pressure control device pipeline,
Acted on by left side pressure limiting valve, water and pressure are less than spring force in power F1 caused by drill bit internal nozzle guiding valve rear end, deficiency
To promote nozzle guiding valve, so whole device is in low-pressure state.
When switching valve is in high pressure, the water from pumping plant passes through the pressure control device pressure duct on the right, by the right
The effect of high-pressure limiting valve, water and pressure are more than spring force in power F1 caused by drill bit internal nozzle guiding valve rear end, just promote
Nozzle guiding valve, so whole device is in high pressure conditions.
In the present apparatus, the water under high pressure that pumping plant 10 exports inputs 6 pressure control devices by the first water under high pressure pipeline；Lead to again
Cross the second pressure duct 5 and water under high pressure pigtail 4 is sent into sealing drilling rod 2 and finally reaches waterpower drill bit 1；By in outside to Stress control
The control conversion of device 6, can make waterpower drill bit 1 have two kinds of working conditions；1st kind is conventional wet type bore state, drill bit water outlet
Pressure is low, Castor Oil cooling drill lip and deslagging；2nd kind is waterpower bore state, and drill bit discharge pressure is high, and angle of water is drill bit
Radially, can waterpower drilling or pressure release.The more bit change when two states are changed and its remaining work can thus be saved；Pressure control
Pressure relief water is put into 9 pumping plant water tanks by device 6 processed by return pipe 8；Drilling protector 3 is sleeved on sealing drilling rod 2, and is inserted
A segment distance with sealed external, discharge by the slag-drip opening for allowing coal-water mixture to enter along drilling rod wherein and in bottom in rib；If any
Gas is then taken away by the gas drainage pipe that top connects.
The utility model introduces water jet theory, makes hydraulic flushing in hole pumping plant, pressure control device, automatic conversion drill bit
Deng and organically combined with rig, realize that rock drilling hole is integrated with rushing coal hole, reach anti-reflection to working face coal mass relief, improve
Drawing-off gas effect.Whole device minimizes, and with drilling-machine shifter, can once complete to the rock drilling of gas extraction hole and rush coal hole,
Improve drilling efficiency.Be widely portable to high gassy and low permeability coal seam it is pre- take out, pressure-relief outburst-prevention etc..
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (10)
- A kind of 1. coal mine drilling water filling slag-draining device, it is characterised in that：Pumping plant including being provided with pumping plant water tank, with pumping plant and The pressure control device that pumping plant water tank is connected by pipeline, described pressure control device are connected close by the second water under high pressure pipeline One end of seal drill rod；The other end of described sealing drilling rod is provided with waterpower drill bit；Drilling is provided with described sealing drilling rod Protector；Sealing drilling rod is arranged on the rig in tunnel.
- A kind of 2. coal mine drilling water filling slag-draining device according to claim 1, it is characterised in that：Described pumping plant and pressure Pipeline between force control device is the first water under high pressure pipeline.
- A kind of 3. coal mine drilling water filling slag-draining device according to claim 1, it is characterised in that：Described pumping plant water tank Pipeline between pressure control device is water return pipeline.
- A kind of 4. coal mine drilling water filling slag-draining device according to claim 1, it is characterised in that：The second described high pressure Water lines are connected by being arranged on the water under high pressure pigtail of sealing drilling rod one end with sealing drilling rod.
- A kind of 5. coal mine drilling water filling slag-draining device according to claim 1, it is characterised in that：Described drilling protection Slag-drip opening is provided with device, while is connected with gas drainage pipe.
- A kind of 6. coal mine drilling water filling slag-draining device according to claim 1, it is characterised in that：Described Stress control Device includes the switching valve being connected with pumping plant；Switching valve passes through pressure control device low pressure line f and pressure control device high pressure Pipeline connects with being connected the second water under high pressure pipeline of sealing drilling rod.
- A kind of 7. coal mine drilling water filling slag-draining device according to claim 6, it is characterised in that：Described Stress control Low pressure pressure limiting valve and check valve are provided with device low pressure line.
- A kind of 8. coal mine drilling water filling slag-draining device according to claim 6, it is characterised in that：Described Stress control High-pressure limiting valve and pressure gauge are provided with device pressure duct.
- A kind of 9. coal mine drilling water filling slag-draining device according to claim 1, it is characterised in that：Described waterpower drill bit Including 3 wing bit bodys, and the drill bit being arranged on 3 wing bit bodys is tightly connected box；Described drill bit is tightly connected box Sprayer body is connected, nozzle body is provided with described sprayer body, nozzle body and drill bit are provided with nozzle between being tightly connected box Gland；The gasket seal being provided with described nozzle body above nozzle gland, the nozzle above gasket seal are slided Valve, compression spring is provided with nozzle guiding valve；Nozzle body connection is arranged on the high pressure nozzle on sprayer body.
- A kind of 10. coal mine drilling water filling slag-draining device according to claim 9, it is characterised in that：Described high pressure spray Combination mat is provided between mouth and sprayer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449847.7U CN206707754U (en) | 2017-04-26 | 2017-04-26 | A kind of coal mine drilling water filling slag-draining device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449847.7U CN206707754U (en) | 2017-04-26 | 2017-04-26 | A kind of coal mine drilling water filling slag-draining device |
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| CN206707754U true CN206707754U (en) | 2017-12-05 |
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| CN201720449847.7U Active CN206707754U (en) | 2017-04-26 | 2017-04-26 | A kind of coal mine drilling water filling slag-draining device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555481A (en) * | 2018-10-26 | 2019-04-02 | 山西晋煤集团技术研究院有限责任公司 | Hydraulic flushing in hole drilling three-level breaks coal anti-blockage holes device and method |
| CN110645038A (en) * | 2019-09-25 | 2020-01-03 | 吕梁学院 | Drilling and hole washing integrated device for coal mine gas extraction |
| CN111980603A (en) * | 2020-09-08 | 2020-11-24 | 淮南矿业(集团)有限责任公司 | Coal seam long-drill-hole drilling water-feeding sediment coal slag discharging system and sediment discharging method |
-
2017
- 2017-04-26 CN CN201720449847.7U patent/CN206707754U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555481A (en) * | 2018-10-26 | 2019-04-02 | 山西晋煤集团技术研究院有限责任公司 | Hydraulic flushing in hole drilling three-level breaks coal anti-blockage holes device and method |
| CN110645038A (en) * | 2019-09-25 | 2020-01-03 | 吕梁学院 | Drilling and hole washing integrated device for coal mine gas extraction |
| CN111980603A (en) * | 2020-09-08 | 2020-11-24 | 淮南矿业(集团)有限责任公司 | Coal seam long-drill-hole drilling water-feeding sediment coal slag discharging system and sediment discharging method |
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