CN209761380U - Coal mine underground drilling blowout prevention and dust removal device - Google Patents
Coal mine underground drilling blowout prevention and dust removal device Download PDFInfo
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- CN209761380U CN209761380U CN201920309264.3U CN201920309264U CN209761380U CN 209761380 U CN209761380 U CN 209761380U CN 201920309264 U CN201920309264 U CN 201920309264U CN 209761380 U CN209761380 U CN 209761380U
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- Prior art keywords
- dust
- drilling
- blowout
- preventing
- blowout prevention
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- 238000005553 drilling Methods 0.000 title claims abstract description 71
- 239000000428 dust Substances 0.000 title claims abstract description 71
- 230000002265 prevention Effects 0.000 title claims abstract description 31
- 239000003245 coal Substances 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 12
- 239000004094 surface-active agent Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 8
- 239000001569 carbon dioxide Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 208000019693 Lung disease Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a colliery is drilling in pit prevents spouting dust collector, it includes: the device comprises a drilling plate, a drill rod through hole, an air seam, a dust hood, a steering pipe, a vibration damper, a spray head, a water tank, a blowout prevention air bag, a blowout prevention weak surface, a blowout prevention pipe, a gas drainage hole, a slag outlet, a transmission pipe, a high-pressure water pump, a Venturi tube, a slag outlet, an alkaline surfactant solution and a hose. The device has simple structure and good dust removal effect, and can prevent the spray holes of the drill holes from hurting people through the blowout-preventing weak surface and the blowout-preventing air bag in the device; the sprayed gas is separated from dust through water bath dust removal, so that carbon dioxide removal or gas emission is facilitated; on the other hand, the dust collection cover for drilling holes and the annular air gap are arranged, so that the secondary collection of dust can be carried out, and the dust collection efficiency is greatly improved.
Description
Technical Field
The utility model relates to a colliery is drilling technical field in the pit, especially relates to a colliery is drilling in the pit and is prevented spouting dust collector.
Background
In the process of underground drilling construction of a coal mine, due to the fact that the space is narrow and small and limited seriously, a large amount of dust can be generated in a short time, and great hidden dangers are brought to safe production of a mine and personnel health. Coal dust generated in the drilling process can be independently exploded under the condition that no gas exists completely, and small-scale gas explosion can be converted into mixed explosion of gas and coal dust to cause continuous explosion; meanwhile, the coal dust also causes serious harm to the health of miners, and the number of the miners who cause disability and death caused by dust lung diseases at home and abroad is extremely large; in addition, the too high dust concentration can influence the vision, causes constructor misoperation. Therefore, coal mine drilling dust prevention is always a very important technical field. The coal mine drilling is characterized in that if the content of carbon dioxide or gas in a constructed coal bed is large and the pressure is high, spraying holes are likely to be formed, and if corresponding measures are not adopted, suffocation accidents or gas overrun can be caused.
At present, the existing dust removal device for drilling construction cannot be widely applied to a construction site due to the dust removal effect, the operation process and other reasons. The dust removal measures adopted in the prior art mainly comprise water spraying dust removal through a hole, full-section filter screen spraying dust removal and the like, and the problems of unsatisfactory dust removal effect and the like exist. The existing coal mine drilling dust removal device cannot have the functions of preventing carbon dioxide from being sprayed out and preventing gas from being sprayed out at the same time. Therefore, the problems of dust overrun and carbon dioxide or gas ejection caused by coal mine drilling are solved, and the method is a problem with great practical significance.
Disclosure of Invention
To the coal dust pollution problem and the potential carbon dioxide or the gas blowout hidden danger that produce in the current colliery drilling work progress in the pit, overcome above prior art's defect, the utility model provides a simple structure, effectual, with low costs, practical downhole drilling prevents spouting dust collector solves its technical problem.
The technical scheme of the utility model is that: a blowout prevention and dust removal device for underground coal mine drilling comprises: the device comprises a drilling plate, a drill rod through hole, an air seam, a dust hood, a steering pipe, a vibration damper, a spray head, a water tank, a blowout prevention air bag, a blowout prevention weak surface, a blowout prevention pipe, a transmission pipe, a high-pressure water pump, a Venturi tube, a slag discharge port and a hose; the drilling disc is provided with a drill rod through hole which penetrates through the drill rod; the drill rod through hole is concentric with the dust collection cover; one side of the drilling disc is connected with the dust hood, the other side of the dust hood is connected with the steering pipe, the drilling disc is close to one side of the dust hood, and air gaps are annularly arranged around the dust hood; a Venturi tube and a slag discharge port are sequentially arranged below the drilling disc; the middle part of the Venturi tube is provided with a spray head; a vibration damping device is arranged on one side of the drilling disc connected with the drilling machine, a blowout prevention weak surface is arranged below the vibration damping device, and the blowout prevention weak surface is connected with a blowout prevention air bag through a blowout prevention pipe; the blowout prevention air bag is connected with the water tank through the hose; the bottom of the water tank is connected with a high-pressure water pump through a transmission pipe, and the high-pressure water pump is connected with a spray head in the Venturi tube through the transmission pipe.
One end of the steering pipe is fixed on a drilling working surface, the other end of the steering pipe is connected with the dust collection cover, and the drilling angle of the drill bit is adjusted within +/-45 degrees through the steering pipe.
Wherein the air gaps are annularly distributed around the dust collecting cover; when the sprayer works, negative pressure is formed in the drilling disc, and dust existing outside the dust collection cover is sucked through the air gap.
Wherein, the damping device includes: the connecting drill rod and the one-way baffle plate are connected, and the connecting drill rod consists of six groups of damping springs; the one-way baffle is positioned on one side of the vibration damper, which is close to the drilling disc.
Wherein, the inside of the water tank is stored with alkaline surfactant solution, the upper part of the water tank is provided with a gas discharge port, and the bottom of the water tank is provided with a slag outlet;
The utility model provides a colliery is drilling in pit prevents spouting dust collector, simple structure, dust removal effect are good, through preventing spouting weak face and preventing spouting the gasbag in the device, can prevent that drilling orifice from hurting people; the sprayed gas is separated from dust by the alkaline surfactant solution, and carbon dioxide absorption or gas emission is facilitated; on the other hand, set up drilling dust cage and annular gas seam and can carry out the secondary collection of dust, improved the collection efficiency of dust widely, set up the steering tube, realized the utility model discloses adaptability to multiple drilling angle.
Drawings
FIG. 1 is a schematic structural diagram of a blowout prevention and dust removal device for underground drilling of a coal mine
FIG. 2 is a schematic view of a cross section of a part of a device for preventing blowout and dust removal in a coal mine underground drilling in an embodiment of the present invention;
1-drilling plate, 2-drill rod through hole, 3-dust cage, 4-gas seam, 5-steering tube, 6-vibration damper, 7-blowout prevention weak surface, 8-blowout prevention tube, 9-blowout prevention air bag, 10-gas pumping and discharging port, 11-water tank, 12-slag outlet, 13-transmission tube, 14-high pressure water pump, 15-venturi tube, 16-slag outlet, 17-nozzle, 18-alkaline surfactant solution and 19-hose.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
as shown in fig. 1-2, the utility model provides a colliery is drilling in pit prevents spouting dust collector, include: the device comprises a drilling plate 1, a drill rod through hole 2, an air gap 4, a dust cage 3, a steering pipe 5, a vibration damper 6, a spray head 17, a water tank 11, a blowout prevention air bag 9, a blowout prevention weak surface 7, a blowout prevention pipe 8, a gas pumping and discharging port 10, a slag outlet 12, a transmission pipe 13, a high-pressure water pump 14, a venturi tube 15, a slag discharge port 16, an alkaline surfactant solution 18 and a hose 19.
Before drilling construction, firstly, the underground drilling blowout prevention and dust removal device is fixedly connected with a drilling machine through a vibration damper 6, a high-pressure water pump 14 is started to enable a spray head 17 in a venturi tube 15 to start working, water mist is sprayed out, certain negative pressure is formed in a drilling disc 1, and certain suction is generated at an annular air gap 4.
When the drilling is started, the drill bit is adjusted to the angle of the working face through the steering pipe 5, the drilling angle can be adjusted within +/-45 degrees, and smooth operation on the multi-angle working face is ensured. Dust generated by drilling is collected in the drilling disc 1 through the dust collection cover 3, and part of small-particle dust which does not enter the dust collection cover 3 can be sucked into the drilling disc 1 through the annular air gap 4, so that secondary collection is formed, and the dust collection efficiency is improved. The dust sucked into the drilling disc 1 enters the venturi tube 15 below the drilling disc 1 under the action of pressure, and is removed through water mist sprayed out of the spray head 17 in the venturi tube 15, the water mist is alkaline surfactant solution 18 stored in the water tank 11, a turbulent flow field in the venturi tube 15 increases the probability of contact between the dust and the water mist, and in addition, the alkaline surfactant solution 18 plays a good wetting effect on the dust due to the surface activity of the alkaline surfactant solution 18, so that the dust removal efficiency is improved.
In the drilling process, when the orifice phenomenon takes place, during a large amount of particulate matter and the gaseous direct entering drilling dish 1 of spun, particulate matter is spouted to damping device 6 along with the blowout gas on, damping device 6 can share partly pressure, and damping device 6's one-way baffle blocks the dust and spouts from the drilling rod through-hole, reduces the damage of drilling orifice to equipment. The blowout-preventing weak surface 7 below the vibration damping device 6 is firstly broken, particulate matters flow into the blowout-preventing pipe 8 through the broken part of the drilling weak surface 7 along with the ejected gas, the blowout-preventing air bag 9 is instantly opened by the ejected dust and gas, and the blowout-preventing air bag 9 quickly collects the ejected matters; gas and dust generated by the drilling and spraying holes can further move into the hose 19, and the gas enters the water tank 11 through the hose 19; when the orifice gas is carbon dioxide, the alkaline surfactant solution 18 may absorb the carbon dioxide; when the gas of the spray hole is methane, the methane filtered by the alkaline surfactant solution is discharged into a mine gas drainage pipeline through a gas discharge port 10, and dust in the sprayed material is discharged through a slag outlet 12 after being deposited.
Claims (6)
1. The utility model provides a colliery is drilling prevents spouting dust collector in pit which characterized in that includes: the device comprises a drilling plate, a drill rod through hole, an air seam, a dust hood, a steering pipe, a vibration damper, a spray head, a water tank, a blowout prevention air bag, a blowout prevention weak surface, a blowout prevention pipe, a transmission pipe, a high-pressure water pump, a Venturi tube, a slag discharge port and a hose; the drilling disc is provided with a drill rod through hole which penetrates through the drill rod; the drill rod through hole is concentric with the dust collection cover; one side of the drilling disc is connected with the dust hood, the other side of the dust hood is connected with the steering pipe, the drilling disc is close to one side of the dust hood, and an air gap is formed around the dust hood; a Venturi tube and a slag discharge port are sequentially arranged below the drilling disc; the middle part of the Venturi tube is provided with a spray head; a vibration damping device is arranged on one side of the drilling disc connected with the drilling machine, a blowout prevention weak surface is arranged below the vibration damping device, and the blowout prevention weak surface is connected with a blowout prevention air bag through a blowout prevention pipe; the blowout prevention air bag is connected with the water tank through a hose; the bottom of the water tank is connected with a high-pressure water pump through a transmission pipe, and the high-pressure water pump is connected with a spray head in the Venturi tube through the transmission pipe.
2. The blowout-preventing and dust-removing device for the underground coal mine drilling hole as claimed in claim 1, wherein: one end of the steering pipe is fixed on the drilling working surface, the other end of the steering pipe is connected with the dust collection cover, and the drilling angle of the drill bit is adjusted within +/-45 degrees through the steering pipe.
3. The blowout-preventing and dust-removing device for the underground coal mine drilling hole as claimed in claim 1, wherein: the air gaps are annularly distributed around the dust collecting cover; when the sprayer works, negative pressure is formed in the drilling disc, and dust existing outside the dust collection cover is sucked in through the air gap.
4. The blowout-preventing and dust-removing device for the underground coal mine drilling hole as claimed in claim 1, wherein: the vibration damping device includes: the connecting drill rod and the one-way baffle plate are connected, and the connecting drill rod consists of six groups of damping springs; the one-way baffle is positioned on one side of the vibration damper, which is close to the drilling disc.
5. The blowout-preventing and dust-removing device for the underground coal mine drilling hole as claimed in claim 1, wherein: after the blowout-preventing weak surface is punctured, the blowout-preventing air bag is opened immediately by the blowout-preventing material, and the blowout-preventing material is stored quickly.
6. the blowout-preventing and dust-removing device for the underground coal mine drilling hole as claimed in claim 1, wherein: alkaline surfactant solution is stored in the water tank, a gas discharge port is arranged at the upper part of the water tank, and a slag outlet is arranged at the bottom of the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920309264.3U CN209761380U (en) | 2019-03-12 | 2019-03-12 | Coal mine underground drilling blowout prevention and dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920309264.3U CN209761380U (en) | 2019-03-12 | 2019-03-12 | Coal mine underground drilling blowout prevention and dust removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761380U true CN209761380U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920309264.3U Active CN209761380U (en) | 2019-03-12 | 2019-03-12 | Coal mine underground drilling blowout prevention and dust removal device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209761380U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779561A (en) * | 2019-03-12 | 2019-05-21 | 辽宁工程技术大学 | A kind of coal mine down-hole drilling blowout prevention dust-extraction unit |
| CN114592819A (en) * | 2022-04-01 | 2022-06-07 | 大庆丹诺石油科技开发有限公司 | Multi-stage sealing device for polymer composite particles at wellhead of oil pumping unit |
-
2019
- 2019-03-12 CN CN201920309264.3U patent/CN209761380U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779561A (en) * | 2019-03-12 | 2019-05-21 | 辽宁工程技术大学 | A kind of coal mine down-hole drilling blowout prevention dust-extraction unit |
| CN109779561B (en) * | 2019-03-12 | 2023-12-26 | 辽宁工程技术大学 | Colliery is drilling in pit prevents spouting dust collector |
| CN114592819A (en) * | 2022-04-01 | 2022-06-07 | 大庆丹诺石油科技开发有限公司 | Multi-stage sealing device for polymer composite particles at wellhead of oil pumping unit |
| CN114592819B (en) * | 2022-04-01 | 2022-07-22 | 大庆丹诺石油科技开发有限公司 | Oil pumping machine well head high molecular composite particle multistage sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liaoning Sunshine Stone science and Technology Park Co.,Ltd. Assignor: LIAONING TECHNICAL University Contract record no.: X2023210000320 Denomination of utility model: A coal mine underground drilling anti spray and dust removal device Granted publication date: 20191210 License type: Common License Record date: 20231227 |