CN216588531U - Borehole gas blowout prevention and collection device - Google Patents
Borehole gas blowout prevention and collection device Download PDFInfo
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- CN216588531U CN216588531U CN202121986995.5U CN202121986995U CN216588531U CN 216588531 U CN216588531 U CN 216588531U CN 202121986995 U CN202121986995 U CN 202121986995U CN 216588531 U CN216588531 U CN 216588531U
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Abstract
The utility model discloses a drilling gas blowout prevention collecting device which comprises a collecting cross joint fixed on a coal seam, wherein a mounting sleeve is detachably arranged on one side of the collecting cross joint, which is far away from the coal seam, an annular bearing seat is detachably arranged in the mounting sleeve, a cover plate is detachably arranged at the end part of the mounting sleeve, a first sealing filler is arranged between the annular bearing seat and the end part of the collecting cross joint, a second sealing filler is arranged between the annular bearing seat and the cover plate, and a through hole matched with a drill rod is arranged in the middle of each of the first sealing filler and the second sealing filler. In the using process of the utility model, two sealing fillers are tightly attached to the surface of the drill rod under the action of the cover plate, and compared with the structure of a single cowhells sealing retainer ring in the prior art, the sealing structure greatly improves the reliability and durability of sealing, reduces the replacement frequency of the sealing structure and improves the working efficiency.
Description
Technical Field
The utility model relates to the technical field of coal mine machinery, in particular to a borehole gas blowout prevention and collection device.
Background
The gas is extracted by drilling, which is a fundamental measure for controlling gas disasters in coal mine production, during the underground drilling construction process, when the coal quality in the hole is soft and collapsed, drilling and spraying holes are easy to occur, coal and rock particles are sprayed out from the drill hole at high speed to injure drilling constructors, a large amount of gas is sprayed out to cause gas overrun, thus endangering the safety production of a mine, the drilling cannot be continuously constructed, when the orifice gas-collecting cross-joint is used for drilling in the drilling machine, the gas in the hole is continuously pumped out, firstly, the gas spraying hole phenomenon is avoided, the gas concentration in the drill hole is ensured to be always kept within the regulation, secondly, the coal slag and the waste water are well separated through the action of the orifice cross-joint and a coal water separator, the standardized management of the drill hole is facilitated, thirdly, the installed orifice device can effectively prevent the gas flow from being blocked in a blowout preventer when the gas emission quantity is suddenly increased due to the occurrence of blowout prevention in the hole, the gas is prevented from rushing out of the roadway, and the gas overrun accident is avoided.
In the prior art, the collection cross and the drill rod are sealed through a beef tendon flexible sealing washer, the wear resistance and the durability are poor, frequent replacement is needed, and the working efficiency is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the defects in the prior art and provide a drilling gas blowout prevention and collection device, thereby effectively solving the defects in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that: the drilling gas blowout prevention collecting device comprises a collecting cross fixed on a coal seam, wherein a mounting sleeve is detachably arranged on one side of the collecting cross far away from the coal seam, an annular bearing seat is detachably arranged in the mounting sleeve, a cover plate is detachably arranged at the end part of the mounting sleeve, a first sealing filler is arranged between the annular bearing seat and the end part of the collecting cross, a second sealing filler is arranged between the annular bearing seat and the cover plate, and a through hole matched with a drill rod is formed in the middle part of each of the first sealing filler and the second sealing filler;
the annular bearing seat is respectively provided with a first annular mounting groove and a second annular mounting groove in a matching way with the first sealing filler and the second sealing filler;
a first gap is formed between one end of the annular bearing seat and the collecting cross joint, and a second gap is formed between the other end of the annular bearing seat and the cover plate.
Further, the first sealing filler and the second sealing filler are both butter packing sealing fillers.
Furthermore, the collection cross is provided with a first connecting flange in cooperation with the coal bed, and the first connecting flange is connected with the coal bed through a first bolt.
Furthermore, a second connecting flange and a third connecting flange are respectively arranged on the collecting cross and the mounting sleeve, and the second connecting flange and the third connecting flange are connected through a second bolt.
Furthermore, the mounting sleeve is provided with a fourth connecting flange in a matching manner with the cover plate, and the fourth connecting flange is connected with the cover plate through a third bolt.
Furthermore, a through hole for a drill rod to pass through is formed in the cover plate.
Furthermore, an upper connecting sleeve and a lower connecting sleeve are arranged on the collecting cross.
The technical scheme of the utility model has the following beneficial effects: in the using process of the utility model, two sealing fillers are tightly attached to the surface of the drill rod under the action of the cover plate, and compared with the structure of a single cowhells sealing retainer ring in the prior art, the sealing structure greatly improves the reliability and durability of sealing, reduces the replacement frequency of the sealing structure and improves the working efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the drilling gas blowout prevention collecting device according to the embodiment includes a collecting cross 2 fixed on a coal seam 1, a mounting sleeve 3 is detachably arranged on one side of the collecting cross 2 far away from the coal seam 1, an annular bearing seat 4 is detachably arranged in the mounting sleeve 3, a cover plate 5 is detachably arranged on the end portion of the mounting sleeve 3, a first sealing filler 6 is arranged between the annular bearing seat 4 and the end portion of the collecting cross 2, a second sealing filler 7 is arranged between the annular bearing seat 4 and the cover plate 5, and through holes matched with drill rods 10 are arranged in the middle portions of the first sealing filler 6 and the second sealing filler 7;
the annular bearing seat 4 is provided with a first annular mounting groove 401 and a second annular mounting groove 402 which are respectively matched with the first sealing filler 6 and the second sealing filler 7;
a first gap 8 is arranged between one end of the annular bearing seat 4 and the collecting cross 2, and a second gap 9 is arranged between the other end of the annular bearing seat 4 and the cover plate 5.
In the using process of the utility model, two sealing fillers are tightly attached to the surface of the drill rod 10 under the action of the cover plate 5, compared with the structure of a single cowhells sealing retainer ring in the prior art, the sealing structure greatly improves the reliability and durability of sealing, reduces the replacement frequency of the sealing structure and improves the working efficiency.
The first sealing packing 6 and the second sealing packing 7 are both butter packing.
The collection cross 2 is provided with a first connecting flange 201 in cooperation with the coal seam 1, and the first connecting flange 201 is connected with the coal seam 1 through a first bolt 1001.
The collecting cross 2 and the mounting sleeve 3 are respectively provided with a second connecting flange 202 and a third connecting flange 403, and the second connecting flange 202 and the third connecting flange 403 are connected through a second bolt 1002.
The mounting sleeve 3 is provided with a fourth connecting flange 404 in cooperation with the cover plate 5, and the fourth connecting flange 404 is connected with the cover plate 5 through a third bolt 1003.
The cover plate 5 is provided with a through hole 501 through which the drill rod 10 can pass.
Collect and be provided with upper connecting sleeve 203 and lower connecting sleeve 204 on the cross 2, upper connecting sleeve 203 and lower connecting sleeve 204 are connected through pipeline and water drain and gas-water separator respectively, and concrete theory of operation can refer to the utility model specification that the publication number is "CN 203856499U".
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. Drilling gas prevents spouting collection device, including fixing the collection cross on the coal seam, its characterized in that: the collecting cross joint is detachably provided with an installation sleeve at one side far away from a coal seam, an annular bearing seat is detachably arranged in the installation sleeve, the end part of the installation sleeve is detachably provided with a cover plate, a first sealing filler is arranged between the annular bearing seat and the end part of the collecting cross joint, a second sealing filler is arranged between the annular bearing seat and the cover plate, and a through hole matched with a drill rod is arranged in the middle of each of the first sealing filler and the second sealing filler;
the annular bearing seat is respectively provided with a first annular mounting groove and a second annular mounting groove in a matching way with the first sealing filler and the second sealing filler;
a first gap is formed between one end of the annular bearing seat and the collecting cross joint, and a second gap is formed between the other end of the annular bearing seat and the cover plate.
2. The drilling gas blowout prevention collection device according to claim 1, wherein: the first sealing packing and the second sealing packing are both butter packing sealing packing.
3. The drilling gas blowout prevention collection device according to claim 1, wherein: the collection cross is provided with a first connecting flange in cooperation with the coal bed, and the first connecting flange is connected with the coal bed through a first bolt.
4. The drilling gas blowout prevention collection device according to claim 1, wherein: the collecting cross joint and the mounting sleeve are respectively provided with a second connecting flange and a third connecting flange, and the second connecting flange and the third connecting flange are connected through a second bolt.
5. The drilling gas blowout prevention collection device according to claim 1, wherein: the mounting sleeve is matched with the cover plate and is provided with a fourth connecting flange, and the fourth connecting flange is connected with the cover plate through a third bolt.
6. The drilling gas blowout prevention collection device according to claim 1, wherein: the cover plate is provided with a through hole for a drill rod to pass through.
7. The drilling gas blowout prevention collection device according to claim 1, wherein: an upper connecting sleeve and a lower connecting sleeve are arranged on the collecting cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121986995.5U CN216588531U (en) | 2021-08-23 | 2021-08-23 | Borehole gas blowout prevention and collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121986995.5U CN216588531U (en) | 2021-08-23 | 2021-08-23 | Borehole gas blowout prevention and collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216588531U true CN216588531U (en) | 2022-05-24 |
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ID=81637744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121986995.5U Active CN216588531U (en) | 2021-08-23 | 2021-08-23 | Borehole gas blowout prevention and collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216588531U (en) |
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2021
- 2021-08-23 CN CN202121986995.5U patent/CN216588531U/en active Active
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