Mining gas extraction blowout preventer

Abstract

The utility model relates to the technical field of gas extraction protection, in particular to a mining gas extraction blowout preventer which comprises a blowout preventer, a blow-off pipe is connected to the bottom side of one end of the blowout preventer, an exhaust pipe is connected to the top side of one end of the blowout preventer, a reinforcing mechanism is installed at one end of the blowout preventer, the reinforcing mechanism comprises a fixing sleeve, and the fixing sleeve is fixedly connected with the blow-off pipe. A fixing sleeve is installed at one end of the blowout preventer, three sliding blocks which are annularly distributed at equal intervals are slidably connected to one side of the fixing sleeve, clamping plates are vertically and fixedly connected to the bottoms of one sides of the three sliding blocks correspondingly, and the clamping plates are slidably connected with the side wall of the fixing sleeve through the sliding blocks. Three rotating rods which are annularly distributed at equal intervals are rotationally connected to the interior of the fixing sleeve, one end of each rotating rod is in threaded connection with the interior of the corresponding sliding block, the other end of each rotating rod extends to the outer side of the fixing sleeve, and a supporting mechanism is installed at one end of the blowout preventer. And the blowout preventer can be reinforced in the hole, so that the blowout preventer is firmly and stably mounted, and equipment can work safely and stably.

Description

Technical Field

[0001] The utility model relates to a blowout prevention device, in particular to a mine gas drainage blowout prevention device, belonging to the technical field of gas drainage protection. Background Technique

[0002] Coal mine gas drainage is to drill holes into coal seams and gas accumulation areas, connect the drill holes to special pipelines, and use drainage equipment to drain the gas in the coal seams and goafs to the ground for utilization or discharge it into the main return air current. Gas drainage is not only an important measure to reduce the gas outburst volume during mining, prevent gas overrun and accumulation, and prevent gas explosion and coal and gas outburst accidents. When drilling holes, in order to prevent the internal gas from spraying out, a blowout prevention device needs to be installed to facilitate the export and recovery of gas and waste.

[0003] However, the traditional blowout prevention equipment has a single structure and lacks a good fixing component. When the blowout preventer is inserted into the hole, its stability is poor. After long-term construction operations, the blowout preventer is likely to fall off, thus affecting the normal operation of the equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a mine gas drainage blowout prevention device in order to solve the above problems, which can reinforce the blowout preventer in the hole, make the installation of the blowout preventer firm and stable, and enable the equipment to work safely and stably.

[0005] The utility model realizes the above purpose through the following technical solutions. A mine gas drainage blowout prevention device includes a blowout preventer. One end of the bottom side of the blowout preventer is connected with a sewage discharge pipe, one end of the top side of the blowout preventer is connected with an exhaust pipe, and a reinforcement mechanism is installed at one end of the blowout preventer. The reinforcement mechanism includes a fixed sleeve. A fixed sleeve is installed at one end of the blowout preventer. Three sliders are slidably connected to one side of the fixed sleeve and are distributed at equal intervals in a ring shape. Three clamping plates are respectively vertically and fixedly connected to the bottom of one side of the sliders. The clamping plates are slidably connected to the side wall of the fixed sleeve through the sliders. Three rotating rods are rotatably connected to the inside of the fixed sleeve and are distributed at equal intervals in a ring shape. One end of the rotating rod is threadedly connected to the inside of the slider, and the other end of the rotating rod extends to the outside of the fixed sleeve. A support mechanism is installed at one end of the blowout preventer.

[0006] Preferably, the clamping plate is of an arc structure, the edge of one end side wall of the clamping plate has a certain slope, and an airbag is installed on one side of the fixed sleeve.

[0007] Preferably, rubber pads are respectively installed on the outer sides of the clamping plates, and one side of the rubber pad is of a toothed structure.

[0008] Preferably, three guide grooves are provided on the side wall of the fixed sleeve, a baffle is slidably connected to the three guide grooves, and one end of the baffle is vertically connected to the clamping plate.

[0009] Preferably, the plurality of rotating rods are cylindrical "T" - shaped structures, and a driving rod is horizontally slidably connected to the tops of the plurality of rotating rods. The driving rod is a cylindrical structure.

[0010] Preferably, a plurality of symmetrically distributed handles are vertically connected to the outer side of the fixed sleeve. The handles are "concave" - shaped structures.

[0011] Preferably, the support mechanism includes a clamping sleeve. One end of the blowout preventer is provided with a clamping sleeve, and two symmetrically distributed connecting rods are rotatably connected to the clamping sleeve. The bottoms of the two connecting rods are respectively provided with support rods.

[0012] Preferably, the top of the support rod is slidably connected to the outer side of the bottom of the connecting rod. One side of the top of the support rod is threadedly connected with a bolt, and one end of the bolt extends into the support rod and abuts against the connecting rod.

[0013] Preferably, connecting plates are respectively rotatably connected to the two connecting rods, and the opposite ends of the two connecting plates are rotatably connected.

[0014] Preferably, one end of one of the connecting plates is vertically and fixedly connected with a screw rod, one end of the other connecting plate is rotatably connected to the screw rod, and a nut is threadedly connected to the screw rod.

[0015] The beneficial effects of the present utility model are as follows: After the blowout preventer is inserted into the hole, the three clamping plates on the fixed sleeve also enter the inside of the hole. By rotating the three rotating rods, the three sliders are driven to make the three clamping plates clamp and abut against the inside of the hole, so that the blowout preventer is firmly and stably installed inside the hole. Through the installation of the support mechanism, the blowout preventer is stably installed, which is beneficial to the subsequent drilling and mining work. Through the installation of the sewage pipe and the exhaust pipe, the waste generated during drilling is discharged, and the gas is discharged and recycled, playing a role in preventing blowout. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the connection structure between the clamping plate and the fixed sleeve of the present utility model;

[0018] Figure 3 is a schematic diagram of the connection structure between the clamping plate and the slider of the present utility model;

[0019] Figure 4 is a schematic diagram of the connection structure between the connecting rod and the clamping sleeve of the present utility model;

[0020] Figure 5 is a schematic diagram of the connection structure between the connecting plate and the screw rod of the present utility model.

[0021] In the figure: 1. BOP; 2. Drain pipe; 3. Exhaust pipe; 4. Reinforcement mechanism; 401. Fixing sleeve; 402. Air bag; 403. Handle; 404. Slider; 405. Clamp; 406. Rotating rod; 407. Driving rod; 408. Baffle; 409. Guide groove; 410. Rubber pad; 5. Support mechanism; 501. Support rod; 502. Connecting rod; 503. Connecting plate; 504. Clamping sleeve; 505. Bolt; 506. Screw; 507. Nut. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1-5 As shown, a mine gas extraction blowout prevention device includes a blowout preventer 1, the bottom side of one end of the blowout preventer 1 is connected to a sewage pipe 2, the top side of one end of the blowout preventer 1 is connected to an exhaust pipe 3, one end of the blowout preventer 1 is installed with a reinforcement mechanism 4, the reinforcement mechanism 4 includes a fixed sleeve 401, one end of the blowout preventer 1 is installed with a fixed sleeve 401, one side of the fixed sleeve 401 is slidably connected to three sliders 404 distributed in an annular manner, and the bottom of one side of the three sliders 404 are respectively vertically fixedly connected with a clamping plate 405, the clamping plate 405 is slidably connected to the side wall of the fixed sleeve 401 through the slider 404, and three rotating rods 406 distributed in an annular manner and equidistantly are rotatably connected to the inside of the fixed sleeve 401, one end of the rotating rod 406 is threadedly connected to the inside of the slider 404, and the other end of the rotating rod 406 extends to the outside of the fixed sleeve 401, and one end of the blowout preventer 1 is installed with a support mechanism 5.

[0024] As a technical optimization solution of the present invention, the splint 405 is an arc-shaped structure, and the edge of the side wall of one end of the splint 405 has a certain slope. An airbag 402 is installed on one side of the fixing sleeve 401, which is conducive to the smooth insertion of the splint 405 into the hole and provides support and resistance to the inside of the hole. At the same time, it is installed through the airbag 402 to play a sealing role.

[0025] As a technical optimization solution of the present invention, rubber pads 410 are respectively installed on the outer sides of the multiple splints 405. One side of the rubber pad 410 is a tooth-like structure. The installation of the rubber pad 410 plays an anti-slip role, and the opening of the tooth-like structure increases the friction force, making the anti-slip effect better.

[0026] As a technical optimization solution of the present utility model, three guide grooves 409 are provided on the side wall of the fixed sleeve 401, and a baffle 408 is slidably connected to the three guide grooves 409. One end of the baffle 408 is perpendicularly connected to the clamping plate 405. Through the opening of the guide grooves 409, it is beneficial to guide the baffle 408. Through the installation of the baffle 408, it plays a role in blocking the slider 404 and preventing dust and sundries from entering and jamming the slider 404.

[0027] As a technical optimization solution of the present utility model, multiple rotating rods 406 are in a cylindrical "T" - shaped structure. A driving rod 407 is horizontally slidably connected to the tops of the multiple rotating rods 406. The driving rod 407 is in a cylindrical structure. Through the installation of the driving rod 407, it is beneficial to drive and control the rotating rods 406, and the operation is more convenient and labor - saving.

[0028] As a technical optimization solution of the present utility model, a plurality of symmetrically distributed handles 403 are perpendicularly connected to the outside of the fixed sleeve 401. The handle 403 is in a "concave" - shaped structure. Through the installation of the handle 403, it is beneficial to hold the fixed sleeve 401, thereby facilitating the operation of the blowout preventer 1.

[0029] As a technical optimization solution of the present utility model, the support mechanism 5 includes a clamping sleeve 504. One end of the blowout preventer 1 is provided with a clamping sleeve 504. Two symmetrically distributed connecting rods 502 are rotatably connected to the clamping sleeve 504. Support rods 501 are respectively installed at the bottoms of the two connecting rods 502. Through the installation of the clamping sleeve 504, it is beneficial to install the connecting rods 502 and the support rods 501, realizing the support for the clamping sleeve 504 and the blowout preventer 1. Through the rotation of the connecting rods 502, it is convenient to adjust the support angle.

[0030] As a technical optimization solution of the present utility model, the top of the support rod 501 is slidably connected to the outside of the bottom of the connecting rod 502. One side of the top of the support rod 501 is threadedly connected with a bolt 505. One end of the bolt 505 extends into the support rod 501 and abuts against the connecting rod 502. Through the sliding of the support rod 501, it is convenient to adjust the support height. Through the installation of the bolt 505, it is beneficial to limit the position between the support rod 501 and the connecting rod 502.

[0031] As a technical optimization solution of the present utility model, connecting plates 503 are respectively rotatably connected to the two connecting rods 502. The opposite ends of the two connecting plates 503 are rotatably connected. Through the installation of the two connecting plates 503, it is beneficial to pull between the two connecting rods 502, playing a protective role.

[0032] As a technical optimization solution of the present utility model, one end of one of the connecting plates 503 is vertically and fixedly connected with a screw rod 506, and one end of the other connecting plate 503 is rotatably connected with the screw rod 506. A nut 507 is threadedly connected to the screw rod 506. Through the installation of the screw rod 506, it is convenient to threadedly connect the nut 507. By driving the nut 507, the nut 507 clamps and limits the two connecting plates 503, and limits the included angle between the two connecting rods 502.

[0033] When the present utility model is in use, first, drill holes at the specified positions through a drilling device, then insert the blowout preventer 1 into the holes. At the same time, the three clamping plates 405 on the fixing sleeve 401 are also inserted into the inner side of the holes. Then, adjust the support angle of the support rod 501 and tighten the nut 507 to make the support rod 501 stably supported, which is beneficial to stably install the blowout preventer 1. Subsequently, drive the driving rod 407, and the driving rod 407 drives the rotating rod 406 to drive the slider 404, so that the three clamping plates 405 tightly contact the inner side of the holes, making the blowout preventer 1 firmly installed in the holes and not slipping off. Finally, insert the drill bit and connect the sewage discharge pipe 2 and the exhaust pipe 3. When drilling and mining, the ejected gas and debris can overflow through the sewage discharge pipe 2 and the exhaust pipe 3, playing a role in preventing blowout.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gas drainage and blowout prevention device for mining, comprising a blowout preventer (1), characterized in that: One end of the blowout preventer (1) is connected to a sewage discharge pipe (2) at the bottom side, and one end of the blowout preventer (1) is connected to an exhaust pipe (3) at the top side. A reinforcement mechanism (4) is installed at one end of the blowout preventer (1). The reinforcement mechanism (4) includes a fixed sleeve (401). A fixed sleeve (401) is installed at one end of the blowout preventer (1). Three sliders (404) evenly distributed in a ring shape are slidably connected to one side of the fixed sleeve (401). At the bottom of one side of the three sliders (404), clamping plates (405) are respectively vertically fixedly connected. The clamping plates (405) are slidably connected to the side wall of the fixed sleeve (401) through the sliders (404). Three rotating rods (406) evenly distributed in a ring shape are rotatably connected inside the fixed sleeve (401). One end of the rotating rod (406) is threadedly connected to the inside of the slider (404), and the other end of the rotating rod (406) extends to the outside of the fixed sleeve (401). A support mechanism (5) is installed at one end of the blowout preventer (1).

2. The gas drainage and blowout prevention device for mine use according to claim 1, characterized in that: The clamping plate (405) is of an arc-shaped structure, and there is a certain slope at the edge of one side wall of the clamping plate (405). An airbag (402) is installed on one side of the fixed sleeve (401).

3. The mine gas drainage anti-blowout device according to claim 1, characterized in that: Rubber pads (410) are respectively installed on the outside of the plurality of clamping plates (405), and one side of the rubber pad (410) is of a toothed structure.

4. A mine gas drainage anti-blowout device according to claim 1, characterized in that: Three guide grooves (409) are provided on the side wall of the fixed sleeve (401), and a baffle (408) is slidably connected to the three guide grooves (409). One end of the baffle (408) is perpendicularly connected to the clamping plate (405).

5. The mine gas drainage blowout prevention device according to claim 1, wherein: The plurality of rotating rods (406) are of a cylindrical "T" - shaped structure, and a driving rod (407) is horizontally slidably connected to the tops of the plurality of rotating rods (406). The driving rod (407) is of a cylindrical structure.

6. The mine gas drainage anti-blowout device according to claim 1, characterized in that: A plurality of symmetrically distributed handles (403) are perpendicularly connected to the outside of the fixed sleeve (401), and the handle (403) is of a "concave" - shaped structure.

7. The mine gas drainage anti-blowout device according to claim 1, characterized in that: The support mechanism (5) includes a clamping sleeve (504). A clamping sleeve (504) is installed at one end of the blowout preventer (1). Two symmetrically distributed connecting rods (502) are rotatably connected to the clamping sleeve (504). Support rods (501) are respectively installed at the bottoms of the two connecting rods (502).

8. A mine gas drainage anti-blowout device according to claim 7, characterized in that: The top of the support rod (501) is slidably connected to the outside of the bottom of the connecting rod (502). One side of the top of the support rod (501) is threadedly connected to a bolt (505), and one end of the bolt (505) extends into the support rod (501) to abut against the connecting rod (502).

9. The mine gas drainage blowout prevention device according to claim 8, wherein: Connecting plates (503) are respectively rotatably connected to the two connecting rods (502), and the opposite ends of the two connecting plates (503) are rotatably connected.

10. A mine gas drainage anti-blowout device according to claim 9, characterized in that: One end of one of the connecting plates (503) is perpendicularly fixedly connected to a screw rod (506), and one end of the other connecting plate (503) is rotatably connected to the screw rod (506). A nut (507) is threadedly connected to the screw rod (506).

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