CN218716672U - Gas drainage drilling plugging structure - Google Patents
Gas drainage drilling plugging structure Download PDFInfo
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- CN218716672U CN218716672U CN202222842293.0U CN202222842293U CN218716672U CN 218716672 U CN218716672 U CN 218716672U CN 202222842293 U CN202222842293 U CN 202222842293U CN 218716672 U CN218716672 U CN 218716672U
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Abstract
The utility model discloses a gas drainage drilling block structure, it includes: the sealing plate is arranged at the top port of the drilling hole in a sealing manner; the grouting equipment is fixedly arranged on the top surface of the sealing plate; and the underground grouting mechanism is arranged in the drill hole. The utility model discloses the device adopts the sealing plate to seal drilling in advance, secondly, adopt the inside of a hole sealing dish shutoff in drilling, more abundant to guarantee that the thick liquid of drilling depths fills, and simultaneously, install the end cap on a hole sealing dish, when the bottom of drilling has filled a certain amount of thick liquid, remaining gas pressurized in it is upwards crowded, until push away the end cap, and arrange to the gas collection device in through the outer tube subassembly, gas has been retrieved on the one hand, make it not have the risk of leaking, on the other hand has reduced the production of thick liquid solidification back gas pocket, improve drilling shutoff intensity.
Description
Technical Field
The utility model particularly relates to colliery is gas drainage technical field in the pit, specifically is a gas drainage drilling block structure.
Background
In the process of extracting gas in an underground coal mine, the leakage of the gas in the mine is one of main mine disasters, and in order to reduce or eliminate the safety hazard of the gas to the production of the mine, the gas in the mine can be blocked after the gas is extracted so as to avoid the emission of residual gas in the underground, thereby harming the surrounding ecological environment.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a gas drainage drilling block structure is in order to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a gas drainage drilling block structure, it includes:
the sealing plate is arranged at the top port of the drilling hole in a sealing manner;
the grouting equipment is fixedly arranged on the top surface of the sealing plate;
and an underground grouting mechanism, wherein the underground grouting mechanism is arranged in the drill hole, and the top port of the underground grouting mechanism is communicated with the grout outlet of the grouting equipment,
the underground grouting mechanism comprises a sealing disc, a fixed cylinder, an outer sleeve assembly and a plug, wherein the sealing disc is fixedly arranged on the bottom surface of the sealing plate, the bottom surface of the sealing disc is fixedly connected with the top end of the fixed cylinder, a side hole of the fixed cylinder is communicated with a gas collecting device positioned on the sealing plate through a gas pipe, the bottom end of the fixed cylinder is communicated with the top surface of the outer sleeve assembly, the bottom end of the outer sleeve assembly is fixedly connected onto the hole sealing disc, a grouting head is fixedly arranged in a middle hole of the hole sealing disc, and the grouting head is communicated with a grout outlet of grouting equipment through a grouting pipe;
the top surface of the hole sealing disc is further provided with a plurality of air holes, the top end ports of the air holes are respectively provided with a plug in a sealing and pressing manner, the bottom end face of each plug is fixedly connected with one end of a plurality of springs, and the other end of each spring is fixed in a corresponding spring groove in the hole sealing disc.
Further, as preferred, be provided with the position collar in the gas pocket, just the position collar adopts a plurality of branches to be fixed in on the inner wall of gas pocket, the position collar slidable cover is located on the lateral wall of locating pin, the top of locating pin is fixed in on the plug.
Further, preferably, a stopper is fixedly arranged at the bottom end of the positioning pin.
Preferably, the inner diameter of the positioning collar is the same as the outer diameter of the positioning pin, and the inner diameter of the positioning collar is smaller than the outer diameter of the stopper.
Preferably, the outer sleeve assembly comprises an upper connecting cylinder, a gas collecting hood and a lower connecting cylinder, and the bottom end of the upper connecting cylinder and the top end of the gas collecting hood are hermetically connected through flanges, and the top end of the lower connecting cylinder and the bottom end of the gas collecting hood are hermetically connected through flanges.
Preferably, a rubber pad is fixedly arranged on the bottom surface of the plug.
The utility model adopts the above technique, compare with current technique and have following beneficial effect: the utility model discloses the device adopts the sealing plate to seal drilling in advance, secondly, adopt the inside of a hole sealing dish shutoff in drilling, more abundant to guarantee that the thick liquid of drilling depths fills, and simultaneously, install the end cap on a hole sealing dish, when the bottom of drilling has filled a certain amount of thick liquid, remaining gas pressurized in it is upwards crowded, until push away the end cap, and arrange to the gas collection device in through the outer tube subassembly, gas has been retrieved on the one hand, make it not have the risk of leaking, on the other hand has reduced the production of thick liquid solidification back gas pocket, improve drilling shutoff intensity.
Drawings
FIG. 1 is a schematic structural diagram of a gas extraction borehole plugging structure;
FIG. 2 is a schematic diagram of an internal structure of a downhole grouting mechanism in a gas extraction borehole plugging structure;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
In the figure: 1. a sealing plate; 2. grouting equipment; 3. a gas collection device; 4. an air tube; 5. an underground grouting mechanism; 501. sealing the disc; 502. an upper connecting cylinder; 503. a gas-collecting hood; 504. a lower connecting cylinder; 505. a grouting head; 506. a hole sealing disc; 507. grouting pipes; 508. a fixed cylinder; 509. a plug; 510. positioning pins; 511. a positioning collar; 512. a spring.
Detailed Description
With reference to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below.
Example (b): referring to fig. 1-3, the present invention provides a technical solution: a gas drainage drilling block structure, it includes:
the sealing plate 1 is hermetically arranged at the top port of the drilling hole;
the grouting equipment 2 is fixedly arranged on the top surface of the sealing plate 1;
and an underground grouting mechanism 5, wherein the underground grouting mechanism 5 is arranged in the drill hole, the top port of the underground grouting mechanism 5 is communicated with the grout outlet of the grouting equipment 2,
the downhole grouting mechanism 5 comprises a sealing disc 501, a fixed cylinder 508, an outer sleeve assembly and a plug 509, wherein the sealing disc 501 is fixedly arranged on the bottom surface of the sealing plate 1, the bottom surface of the sealing disc 501 is fixedly connected with the top end of the fixed cylinder 508, a side hole of the fixed cylinder 508 is communicated with a gas collecting device 3 positioned on the sealing plate 1 through a gas pipe 4, the bottom end of the fixed cylinder 508 is communicated with the top surface of the outer sleeve assembly, the bottom end of the outer sleeve assembly is fixedly connected to a hole sealing disc 506, a grouting head 505 is fixedly arranged in a middle hole of the hole sealing disc 506, and the grouting head 505 is communicated with a grout outlet of the grouting equipment 2 through a grouting pipe 507;
specifically, the gas collecting device 3 comprises a gas pump and a gas collecting bin, and residual gas is discharged into the gas collecting bin through the gas pump;
a plurality of air holes are further formed in the top face of the hole sealing disc 506, a top port of each air hole is hermetically pressed with a plug 509, the bottom end face of each plug 509 is fixedly connected with one end of a plurality of springs 512, and the other end of each spring 512 is fixed in a corresponding spring groove in the hole sealing disc 506.
In this embodiment, a positioning collar 511 is disposed in the air hole, the positioning collar 511 is fixed to the inner wall of the air hole by a plurality of support rods, the positioning collar 511 is slidably sleeved on the side wall of the positioning pin 510, and the top end of the positioning pin 510 is fixed to the plug 509.
In this embodiment, the bottom end of the positioning pin 510 is fixed with a stopper.
In this embodiment, the inner diameter of the position collar 511 is the same as the outer diameter of the position pin 510, and the inner diameter of the position collar 511 is smaller than the outer diameter of the stopper.
In this embodiment, the outer sleeve assembly includes an upper connecting cylinder 502, a gas collecting hood 503 and a lower connecting cylinder 504, and the bottom end of the upper connecting cylinder 502 and the top end of the gas collecting hood 503 and the top end of the lower connecting cylinder 504 and the bottom end of the gas collecting hood 503 are connected by flange sealing.
In this embodiment, a rubber pad is fixedly disposed on the bottom surface of the plug 509.
During specific implementation, the sealing plate 1 is adopted to seal a drilled hole in advance, then the hole sealing disc 506 is adopted to seal the inside of the drilled hole to ensure that slurry in the deep part of the drilled hole is filled more fully, meanwhile, the plug 509 is arranged on the hole sealing disc 506, when a certain amount of slurry is filled at the bottom of the drilled hole, residual gas in the drilled hole is pressed upwards to be squeezed until the plug 509 is pushed away, and the slurry is discharged into the gas collecting device through the outer sleeve component, on one hand, the gas is recycled, so that the leakage risk is avoided, on the other hand, the generation of air holes after the slurry is solidified is reduced, and the sealing strength of the drilled hole is improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides a gas drainage drilling block structure which characterized in that, it includes:
the sealing plate (1) is arranged at the top port of the drilled hole in a sealing mode;
the grouting equipment (2), the grouting equipment (2) is fixedly arranged on the top surface of the sealing plate (1);
and an underground grouting mechanism (5), wherein the underground grouting mechanism (5) is arranged in the drill hole, the top port of the underground grouting mechanism (5) is communicated with the grout outlet of the grouting equipment (2),
the underground grouting mechanism (5) comprises a sealing disc (501), a fixed cylinder (508), an outer sleeve assembly and a plug (509), wherein the sealing disc (501) is fixedly arranged on the bottom surface of the sealing plate (1), the top end of the fixed cylinder (508) is fixedly connected to the bottom surface of the sealing disc (501), a side hole of the fixed cylinder (508) is communicated with a gas collecting device (3) located on the sealing plate (1) through a gas pipe (4), the bottom end of the fixed cylinder (508) is communicated with the top surface of the outer sleeve assembly, the bottom end of the outer sleeve assembly is fixedly connected to the hole sealing disc (506), a grouting head (505) is fixedly arranged in a middle hole of the hole sealing disc (506), and the grouting head (505) is communicated with a grout outlet of the grouting equipment (2) through a grouting pipe (507);
still seted up a plurality of gas holes on the top surface of hole sealing dish (506), every the equal gland in top port of gas hole has end cap (509), every the bottom face of end cap (509) all fixedly connected with the one end of a plurality of springs (512), every the other end of spring (512) all is fixed in the corresponding spring inslot on hole sealing dish (506).
2. The gas extraction borehole plugging structure according to claim 1, characterized in that: be provided with position collar (511) in the gas pocket, just position collar (511) adopt a plurality of branches to be fixed in on the inner wall of gas pocket, position collar (511) slidable cover is located on the lateral wall of locating pin (510), the top of locating pin (510) is fixed in on end cap (509).
3. The gas extraction borehole plugging structure according to claim 2, characterized in that: and a stop block is fixedly arranged at the bottom end of the positioning pin (510).
4. The gas extraction borehole plugging structure according to claim 3, characterized in that: the inner diameter of the positioning collar (511) is the same as the outer diameter of the positioning pin (510), and the inner diameter of the positioning collar (511) is smaller than the outer diameter of the stop block.
5. The gas extraction borehole plugging structure according to claim 1, characterized in that: the outer sleeve assembly comprises an upper connecting cylinder (502), a gas collecting hood (503) and a lower connecting cylinder (504), and the bottom end of the upper connecting cylinder (502) is connected with the top end of the gas collecting hood (503) in a flange sealing mode, and the top end of the lower connecting cylinder (504) is connected with the bottom end of the gas collecting hood (503) in a flange sealing mode.
6. The gas extraction borehole plugging structure according to claim 1, characterized in that: and a rubber pad is fixedly arranged on the bottom surface of the plug (509).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222842293.0U CN218716672U (en) | 2022-10-27 | 2022-10-27 | Gas drainage drilling plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222842293.0U CN218716672U (en) | 2022-10-27 | 2022-10-27 | Gas drainage drilling plugging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218716672U true CN218716672U (en) | 2023-03-24 |
Family
ID=85593190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222842293.0U Active CN218716672U (en) | 2022-10-27 | 2022-10-27 | Gas drainage drilling plugging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218716672U (en) |
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2022
- 2022-10-27 CN CN202222842293.0U patent/CN218716672U/en active Active
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