CN218151037U - Water curtain sealed gas leakage preventing device for coal mine drilling - Google Patents
Water curtain sealed gas leakage preventing device for coal mine drilling Download PDFInfo
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- CN218151037U CN218151037U CN202222663732.1U CN202222663732U CN218151037U CN 218151037 U CN218151037 U CN 218151037U CN 202222663732 U CN202222663732 U CN 202222663732U CN 218151037 U CN218151037 U CN 218151037U
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- water
- sealing
- pipe
- water curtain
- box body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 239000003245 coal Substances 0.000 title claims abstract description 21
- 238000005553 drilling Methods 0.000 title claims description 35
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 239000002893 slag Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 230000003116 impacting effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of coal mine machinery. The gas leakage-proof device comprises a sealing box body and a sealing pipe which is arranged on one side of the sealing box body and is used for a drill rod to pass through, wherein a water sealing device is arranged on the other side of the sealing box body; the water sealing device is opposite to the sealing pipe and communicated with the sealing pipe; the water sealing device comprises a water sealing bin and a water curtain pipe; the watertight bin is fixedly arranged on the sealed box body, and the water curtain pipe is arranged in the watertight bin to divide the watertight bin into a drill rod channel and a water bin; the watertight bin is provided with a water inlet for accessing high-pressure water; the water curtain pipe is provided with a plurality of gaps, and the water sump is communicated with the drill pipe channel through the gaps; the pressure water is sprayed out through the gap to form a high-pressure water curtain; the high-pressure water curtain forms water seal to the drill pipe channel to isolate gas. The utility model discloses simple structure need not to increase other auxiliary assembly, and current water in the pit also can be adopted to used water source.
Description
Technical Field
The utility model belongs to the technical field of coal mine machinery, a device is prevented leaking by water curtain sealed colliery gas for drilling is related to.
Background
At present, most coal mine drilling gas leakage-proof devices are of a sealing box body type structure, one end of a sealing box is connected with a hole cover sealed with a coal wall or a core pipe deep into the hole, a hole capable of penetrating a drill rod is reserved at one corresponding end, an air suction opening of negative pressure is connected to the upper portion of the sealing box, and a deslagging opening is connected to the lower portion of the sealing box. At present the sealed rubber circle that generally adopts between seal box drill way and the drilling rod is sealed, because the drilling rod is incessantly rotating, the rubber circle is very easily worn and torn, and gas can be followed the gap and revealed after wearing and tearing, can trigger gas alarm device when the volume of revealing reaches certain numerical value, leads to the tunnel outage, and the construction is interrupted, seriously influences operation safety and construction progress.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at solving the above-mentioned problem, provide a water curtain sealed colliery is gas leakage preventing device for drilling, can effectually prevent that gas from leaking in the drilling work progress.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a water curtain sealing type gas leakage preventing device for coal mine drilling comprises a sealing box body and a sealing pipe which is arranged on one side of the sealing box body and used for a drill rod to penetrate through, wherein a water sealing device is arranged on the other side of the sealing box body; the water sealing device is opposite to the sealing pipe and communicated with the sealing pipe;
the water sealing device comprises a water sealing bin and a water curtain pipe; the watertight bin is fixedly arranged on the sealed box body, and the water curtain pipe is arranged in the watertight bin to divide the watertight bin into a drill rod channel and a water bin; the watertight bin is provided with a water inlet for accessing high-pressure water; the high pressure water passes through the water curtain pipe to generate a high pressure water curtain to form water seal for the drill pipe channel and isolate gas. The water curtain can effectual isolated gas, and the drilling rod is washed to pressure water simultaneously, can play and wash the drilling rod effect.
Furthermore, a plurality of gaps are formed in the water curtain pipe, and the water sump is communicated with the drill pipe channel through the gaps; the pressure water is sprayed out through the gap to form a high-pressure water curtain; a drill pipe passes through the drill pipe passage and extends into the seal tube.
Furthermore, the gap has a plurality ofly, follows simultaneously water curtain pipe's axial and circumference interval distribution form a plurality of water curtains.
Furthermore, the drill rod channel is communicated with the sealed box body, and sludge and water generated by the water curtain impacting the drill rod are discharged through the sealed box body.
Furthermore, the upper part of the sealed box body is provided with a suction interface for sucking gas under negative pressure; and a slag discharging interface is arranged at the lower part of the sealing box body and used for discharging slag.
Furthermore, one side of the watertight bin, which is far away from the sealing box body, is provided with a pressing plate, a sealing ring is arranged between the pressing plate and the watertight bin, and the sealing ring is used for sealing with a penetrating drill rod.
Furthermore, the bottom of the sealed box body is provided with a connecting base used for being connected with a drilling machine.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a water curtain sealing mode, when the drilling rod passes through water seal device, the water inlet has the water under high pressure input, and the water under high pressure blows through the gap on the water curtain pipe and dashes to the drilling rod, forms one deck water curtain barrier between water curtain pipe and the drilling rod to block gas and follow the drilling rod end and leak.
2. The utility model discloses simple structure need not to increase other auxiliary assembly, and used water source also can adopt current water in the pit. And the interface that the device leaves can with existing equipment butt joint in the pit, need not to change other auxiliary assembly.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings, wherein:
fig. 1 is an overall schematic view of the gas leakage preventing device for the middle water curtain sealed coal mine drilling of the utility model;
FIG. 2 is a schematic structural view of the middle sealing box body of the present invention;
FIG. 3 is the schematic view of the structure of the reclaimed water sealing device of the present invention
Fig. 4 is a schematic diagram illustrating the sealing principle of the reclaimed water curtain of the present invention.
Reference numerals: 1-sealing the tube; 2-sealing the box body; 3-water sealing device; 4-connecting the base; 21-sealing the bin; 22-suction interface; 23-slag discharge interface; 24-a connecting frame; 31-a watertight compartment; 32-a water inlet; 33-sealing ring; 34-a pressure plate; 35-water curtain pipe.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 4, a water curtain sealed gas leakage preventing device for coal mine drilling comprises a sealed box body 2 and a sealed pipe 1 installed at one side of the sealed box body 2 and used for a drill rod to pass through, and a water sealing device 3 is installed at the other side of the sealed box body 2; the water sealing device 3 is opposite to the sealing pipe 1 and communicated with each other;
wherein, the water sealing device 3 comprises a water sealing chamber 31 and a water curtain pipe 35; the watertight bin 31 is fixedly arranged on the sealed box body 2 through bolts, and the water curtain pipe 35 is arranged in the watertight bin 31 to divide the watertight bin 31 into a drill rod channel and a water bin; the watertight bin 31 is provided with a water inlet 32 for accessing high-pressure water; the water curtain pipe 35 is provided with a plurality of gaps, and the water sump is communicated with the drill pipe channel through the gaps; the pressure water is sprayed out through the gap to form a high-pressure water curtain; the drill pipe passes through the drill pipe passage and extends into the gland 1. The high pressure water passes through the water curtain pipe 35 to generate a high pressure water curtain to form a water seal for the drill pipe passage and isolate gas. The water curtain can effectual isolated gas, and the drilling rod is washed to pressure water simultaneously, can play and wash the drilling rod effect.
Wherein, the gap has a plurality ofly, simultaneously along the axial of water curtain pipe 35 and circumference interval distribution, forms a plurality of water curtains. The drill pipe channel is communicated with the sealed box body 2, and sludge and water generated by the water curtain impacting the drill pipe are discharged through the sealed box body 2.
The sealed box body 2 comprises a sealed bin 21, and a suction connector 22 is arranged at the upper part of the sealed bin 21 and used for sucking gas under negative pressure; the lower part of the sealed box body 2 is provided with a slag discharging interface 23 for discharging slag. A pressing plate 34 is installed on one side of the watertight bin 31 far away from the seal box body 2 through bolts, a sealing ring 33 is arranged between the pressing plate 34 and the watertight bin 31, and the sealing ring 33 is used for sealing with a passed drill rod. The bottom of the sealed box body 2 is fixedly provided with a connecting frame 24, the connecting frame 24 is fixedly connected with the connecting base 4 through bolts, and the sealed box body 2 is connected with a drilling machine through the connecting base 4.
The use method of the water curtain sealing type gas leakage preventing device for coal mine drilling in the embodiment comprises the following steps:
and 4, opening the negative pressure pipe and the high pressure water pipe switch in sequence to form a layer of water curtain barrier between the water curtain pipe 35 and the drill rod, and then performing normal drilling construction.
When the drill rod passes through the water sealing device 3, high-pressure water is input from the water inlet 32, the high-pressure water is blown to the drill rod through the gap on the water curtain pipe 35, and a water curtain barrier is formed between the water curtain pipe 35 and the drill rod, so that gas is prevented from leaking from the end of the drill rod. Meanwhile, the sealing box body 2 is connected with a negative pressure pipe, the sealing pipe 1 is sealed with a rock/coal wall sealant, and the water curtain is arranged at the end of the water sealing device 3 for sealing, so that the device can effectively prevent gas leakage.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a device is prevented leaking by gas for drilling in water curtain sealed colliery, includes sealed box and the sealed tube that is used for the drilling rod to pass of locating sealed box one side, its characterized in that: the other side of the sealed box body is provided with a water sealing device; the water sealing device is opposite to the sealing pipe and communicated with the sealing pipe;
the water sealing device comprises a water sealing bin and a water curtain pipe; the water-tight bin is fixedly arranged on the sealed box body, and the water curtain pipe is arranged in the water-tight bin to divide the water-tight bin into a drill rod channel and a water bin; the watertight bin is provided with a water inlet for accessing high-pressure water; the high pressure water passes through the water curtain pipe to generate a high pressure water curtain to form water seal for the drill pipe channel and isolate gas.
2. The water curtain sealed gas leakage preventing device for coal mine drilling according to claim 1, characterized in that: the water curtain pipe is provided with a plurality of gaps, and the water sump is communicated with the drill pipe channel through the gaps; the pressure water is sprayed out through the gap to form a high-pressure water curtain; a drill pipe passes through the drill pipe passage and extends into the seal tube.
3. The water curtain sealed gas leakage preventing device for coal mine drilling according to claim 2, characterized in that: the gap has a plurality ofly, follows simultaneously water curtain pipe's axial and circumference interval distribution form a plurality of water curtains.
4. The water curtain sealed gas leakage preventing device for coal mine drilling according to claim 1, wherein: the drill rod channel is communicated with the sealed box body, and sludge and water generated by the water curtain impacting the drill rod are discharged through the sealed box body.
5. The water curtain sealed gas leakage preventing device for coal mine drilling according to claim 1, characterized in that: the upper part of the sealed box body is provided with a suction port for sucking gas under negative pressure; and a slag discharging interface is arranged at the lower part of the sealing box body and used for discharging slag.
6. The water curtain sealed gas leakage preventing device for coal mine drilling according to claim 1, characterized in that: one side of the watertight bin, which is far away from the sealing box body, is provided with a pressing plate, a sealing ring is arranged between the pressing plate and the watertight bin, and the sealing ring is used for sealing with a penetrating drill rod.
7. The water curtain sealed gas leakage preventing device for coal mine drilling according to claim 1, wherein: and the bottom of the sealed box body is provided with a connecting base for connecting with a drilling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663732.1U CN218151037U (en) | 2022-10-10 | 2022-10-10 | Water curtain sealed gas leakage preventing device for coal mine drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222663732.1U CN218151037U (en) | 2022-10-10 | 2022-10-10 | Water curtain sealed gas leakage preventing device for coal mine drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218151037U true CN218151037U (en) | 2022-12-27 |
Family
ID=84566049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222663732.1U Active CN218151037U (en) | 2022-10-10 | 2022-10-10 | Water curtain sealed gas leakage preventing device for coal mine drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218151037U (en) |
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2022
- 2022-10-10 CN CN202222663732.1U patent/CN218151037U/en active Active
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