Drilling, hole spraying prevention and water collection integrated device

Abstract

The invention discloses a drilling blowout prevention and water collection integrated device which comprises a steel pipe structure, a blowout prevention branch pipe, a hose, a slag collection channel, a water tank and an extraction pipeline. According to the invention, by designing the steel pipe structure, the normal drilling requirement is met, meanwhile, direct gushing of coal (rock) slag and gas is avoided, the coal (rock) slag and the gas are introduced into the slag collection channel by adopting the blowout prevention branch pipe and the hose, and the coal (rock) slag and the gas are sent into an extraction pipeline after slag collection and slag removal; hole spraying can be effectively avoided, and the safety of drilling extraction construction is improved. And moreover, it is guaranteed that punching workers cannot work in a dust environment, the personal health of the workers is guaranteed, most solid particles can be removed through the slag collecting channel, and the service life of an extraction pipeline and a gas extraction pump is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling and gas drainage, and particularly to a device integrating drilling anti-blowout and water collection. Background Art

[0002] Coal resources are important materials and the foundation for social and economic development. Coal resource extraction is divided into open-pit mining and underground mining; in underground coal mining, coal and gas coexist. Drilling and gas drainage is the main method for effectively controlling gas. However, once blowout occurs during the process of drilling holes underground, a large amount of coal (rock) slag will be generated and a large amount of gas will gush out, threatening the safety of underground drilling personnel and severely restricting the safe production of coal mines.

[0003] In order to ensure the safety of drilling and gas drainage construction and avoid blowout, the present invention provides a device integrating drilling anti-blowout and water collection. Summary of the Invention

[0004] In order to solve the above-mentioned shortcomings and deficiencies of the prior art, the purpose of the present invention is to provide a device integrating drilling anti-blowout and water collection.

[0005] The technical solution of the present invention is as follows: A device integrating drilling anti-blowout and water collection, comprising: A steel pipe structure, which is fixedly installed at the gas drainage port position, and the end of the steel pipe structure has a through hole for cooperating with a directional drilling rig; A slag collection channel, an anti-blowout branch pipe is arranged on the side of the steel pipe structure, and the anti-blowout branch pipe is connected to the slag collection channel through a hose; A gas drainage pipe, the slag collection channel is connected to the gas drainage pipe through a branch pipe, and a butterfly valve is installed on the branch pipe.

[0006] Preferably, the steel pipe structure includes: A first steel pipe section, which is fixedly installed at the gas drainage port position. One end of the first steel pipe section far from the gas drainage port is fixedly connected to a second steel pipe section, and an annular protrusion and a limiting flange are fixedly connected to the outside of the second steel pipe section; A first clamping block and a second clamping block, the first clamping block and the second clamping block are clamped on the outside of the second steel pipe section, and a through hole for cooperating with the drill pipe of the directional drilling rig is formed between the first clamping block and the second clamping block. The first clamping block and the second clamping block are fixed together by bolts, and an annular recess for cooperating with the annular protrusion is arranged on the inner sides of the first clamping block and the second clamping block; An annular blocking member, which is fixedly arranged at the ends of the first clamping block and the second clamping block.

[0007] Preferably, the annular baffle comprises an annular flange, an end of the annular flange is fixedly connected with a connecting ear, and the connecting ear, the first clamping block and the second clamping block are fixed together by bolts.

[0008] Preferably, a built-in filter residue net is fixedly installed on the branch pipe.

[0009] Preferably, a primary filter net and a secondary filter net are fixedly installed inside the slag collecting channel along the length direction. The primary filter net and the secondary filter net divide the interior of the slag collecting channel into: a first chamber, a second chamber, and a third chamber. The second chamber is located between the primary filter net and the secondary filter net. The hose is connected to the first chamber, and the branch pipe is connected to the third chamber.

[0010] Preferably, a gas sensor and a carbon monoxide sensor are fixedly installed on the third chamber.

[0011] Preferably, a first slag removal port is provided on the side of the first chamber, a second slag removal port is provided on the side of the second chamber, and a third slag removal port is provided on the side of the third chamber.

[0012] Preferably, two blowout preventer branches are provided.

[0013] The beneficial effects of the present invention are: compared with the prior art, Compared with the anti-blowout hole device put into use before, the present invention adds a water collection device, and the water collection device is divided into a slag water filter box and a drainage side slag removal box. It can effectively realize the separation of coal rock and gas. A layer of 0.5mm horizontally arranged filter mesh is arranged inside the slag water filter box. This layer of mesh can effectively separate the slag and water discharged from the drilling hole in the longitudinal direction. The mesh is installed with a certain slope to facilitate slag discharge when there is too much slag deposition. The drainage side slag removal box and the slag water filter box are separated by a layer of longitudinally installed mesh, which is used to effectively isolate the slag to prevent the coal rock slag from entering the gas pipe and affecting the extraction of gas and other gases. At the same time, the mesh can also effectively prevent some coal rock slag that passes through the first layer of mesh from clogging the drainage port at the bottom of the device. Its internal device effectively realizes the separation of water, slag and gas. The device is provided with an adaptive water baffle, which can effectively prevent water from overflowing into the tunnel.

[0014] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 is a perspective view of the steel pipe structure of the present invention; Figure 3 A top view of the steel pipe structure of the present invention; Figure 4 for Figure 3 Sectional view of the section line at AA in the middle.

[0015] Legend: 1. Directional drill rig; 2. Steel pipe structure; 201. First steel pipe section; 202. Second steel pipe section; 203. Restricting flange; 204. Annular protrusion; 205. First clamping block; 206. Second clamping block; 207. Annular baffle; 2071. Annular flange; 2072. Connecting ear; 3. Blowout prevention branch pipe; 4. Hose; 5. Slag collection channel; 6. Primary slag filter screen; 7. Secondary slag filter screen; 8. First chamber; 9. Second chamber; 10. Third chamber; 11. First slag removal port; 12. Second slag removal port; 13. Third slag removal port; 14. Gas sensor and carbon monoxide sensor; 15. Branch pipe; 16. Drainage pipeline; 17. Butterfly valve. Detailed implementation mode

[0016] The invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments: Refer to Figures 1 to 4 , a device integrating drill hole blowout prevention and water collection, comprising: a steel pipe structure 2, a blowout prevention branch pipe 3, a hose 4, a slag collection channel 5, and a drainage pipeline 16.

[0017] The end of the steel pipe structure 2 has a through hole for cooperating with the directional drill rig 1; during use, first, an installation hole for the steel pipe structure 2 (i.e., the position of the drainage port) is opened at the predetermined mining position, the steel pipe structure 2 is fixedly installed in the installation hole of the steel pipe structure 2, and then the drill pipe of the directional drill rig 1 is inserted into the interior of the steel pipe structure 2; a blowout prevention branch pipe 3 is arranged on the side of the steel pipe structure 2, the blowout prevention branch pipe 3 communicates with the interior of the steel pipe structure 2, that is, communicates with the drainage port, the blowout prevention branch pipe 3 is connected to the slag collection channel 5 through a hose 4, the slag collection channel 5 is connected to the drainage pipeline 16 through a branch pipe 15, and a butterfly valve 17 is installed on the branch pipe 15.

[0018] After the installation is completed in the above manner, the directional drill rig 1 works, the butterfly valve 17 is opened, and the negative pressure in the drainage pipeline 16 (the drainage pipeline 16 is a pipeline of a conventional drainage system, and a drainage pump is installed thereon) sucks air from the slag collection channel 5, so as to suck the coal (rock) slag and gas generated during the drilling process into the slag collection channel 5, and then filter in the slag collection channel 5, and the filtered gas (gas containing gas) enters the drainage pipeline 16.

[0019] In an embodiment, the steel pipe structure 2 includes: a first steel pipe section 201, a second steel pipe section 202, a first clamping block 205, a second clamping block 206, and an annular baffle 207.

[0020] The first steel pipe section 201 is fixedly installed at the extraction port position. One end of the first steel pipe section 201 away from the extraction port position is fixedly connected to the second steel pipe section 202. The interiors of the first steel pipe section 201 and the second steel pipe section 202 are in a communicating state. An annular protrusion 204 and a limiting flange 203 are fixedly connected to the outer side of the second steel pipe section 202. The first clamping block 205 and the second clamping block 206 are clamped on the outer side of the second steel pipe section 202, and a through hole for cooperating with the drill pipe of the directional drill 1 is formed between the first clamping block 205 and the second clamping block 206. The first clamping block 205 and the second clamping block 206 are fixed together by bolts. Annular recesses for cooperating with the annular protrusion 204 are arranged on the inner sides of the first clamping block 205 and the second clamping block 206, so that after the first clamping block 205 and the second clamping block 206 are clamped and fixed, the first clamping block 205 and the second clamping block 206 cannot axially slide relative to the second steel pipe section 202. An annular stopper 207 is fixedly arranged at the ends of the first clamping block 205 and the second clamping block 206 for protecting the ends of the first clamping block 205 and the second clamping block 206.

[0021] In one embodiment, the annular stopper 207 includes: an annular flange 207, and a connecting ear 2072 is fixedly connected to the end of the annular flange 2071. The connecting ear 2072, the first clamping block 205, and the second clamping block 206 are fixed together by bolts, so that the rapid installation of the first clamping block 205, the second clamping block 206, and the annular stopper 207 can be realized quickly.

[0022] In one embodiment, an internal filter residue net is fixedly installed on the branch pipe 15, and the internal filter residue net is used for filtering solid residues in the gas flowing through the interior of the branch pipe 15.

[0023] In one embodiment, a primary filter residue net 6 and a secondary filter residue net 7 are fixedly installed along the length direction inside the slag collection channel 5. The primary filter residue net 6 and the secondary filter residue net 7 divide the interior of the slag collection channel 5 into: a first chamber 8, a second chamber 9, and a third chamber 10. The second chamber 9 is located between the primary filter residue net 6 and the secondary filter residue net 7. The hose 4 is connected to the first chamber 8, and the branch pipe 15 is connected to the third chamber 10.

[0024] A first slag removal port 11 is arranged on the side of the first chamber 8, a second slag removal port 12 is arranged on the side of the second chamber 9, and a third slag removal port 13 is arranged on the side of the third chamber 10.

[0025] The density of the primary filter residue net 6 is set to be greater than that of the secondary filter residue net 7 to achieve two-stage filtration inside the slag collection channel 5. After the drilling is completed, the first slag removal port 11, the second slag removal port 12, and the third slag removal port 13 can be opened to clean the internal residues correspondingly.

[0026] A gas sensor and a carbon monoxide sensor 14 are fixedly installed on the upper part of the third chamber 10. After the drilling is completed, only when the data detected by the gas sensor and the carbon monoxide sensor 14 are within the safe range can the residues in the first chamber 8, the second chamber 9, and the third chamber 10 be cleaned up.

[0027] As Figure 2 shown, there are two blowout prevention branch pipes 3, and the two blowout prevention branch pipes 3 are symmetrically arranged.

[0028] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A drilling anti-blowout hole and water collection integrated device, characterized in that Including: A steel pipe structure (2), which is fixedly installed at the extraction port position, and the end of the steel pipe structure (2) has a through hole for cooperating with the directional drilling rig (1); A slag collection channel (5), an anti-blowout branch pipe (3) is arranged on the side of the steel pipe structure (2), and the anti-blowout branch pipe (3) is connected to the slag collection channel (5) through a hose (4); An extraction pipeline (16), the slag collection channel (5) is connected to the extraction pipeline (16) through a branch pipe (15), and a butterfly valve (17) is installed on the branch pipe (15).

2. The integrated device for drilling anti-blowout holes and water collection according to claim 1, wherein, The steel pipe structure (2) includes: A first steel pipe section (201), which is fixedly installed at the extraction port position. One end of the first steel pipe section (201) far from the extraction port position is fixedly connected to a second steel pipe section (202), and an annular protrusion (204) and a limiting flange (203) are fixedly connected to the outside of the second steel pipe section (202); A first clamping block (205) and a second clamping block (206), the first clamping block (205) and the second clamping block (206) are clamped on the outside of the second steel pipe section (202), and a through hole for cooperating with the drill pipe of the directional drilling rig (1) is formed between the first clamping block (205) and the second clamping block (206). The first clamping block (205) and the second clamping block (206) are fixed together by bolts. Annular recesses for cooperating with the annular protrusion (204) are arranged on the inner sides of the first clamping block (205) and the second clamping block (206); An annular blocking member (207), which is fixedly arranged at the ends of the first clamping block (205) and the second clamping block (206).

3. The integrated device for drilling anti-blowout holes and water collection according to claim 2, wherein The annular blocking member (207) includes: an annular flange (2071), and a connecting ear (2072) is fixedly connected to the end of the annular flange (2071). The connecting ear (2072), the first clamping block (205), and the second clamping block (206) are fixed together by bolts.

4. The integrated device for drilling and blowout prevention and water collection according to claim 1, characterized in that An internal filter slag net is fixedly installed on the branch pipe (15).

5. The integrated device for drilling and blowout prevention and water collection according to claim 1, characterized in that An primary filter slag net (6) and a secondary filter slag net (7) are fixedly installed inside the slag collection channel (5) along the length direction. The primary filter slag net (6) and the secondary filter slag net (7) divide the inside of the slag collection channel (5) into: a first chamber (8), a second chamber (9), and a third chamber (10). The second chamber (9) is located between the primary filter slag net (6) and the secondary filter slag net (7). The hose (4) is connected to the first chamber (8), and the branch pipe (15) is connected to the third chamber (10).

6. The drilling blowout prevention hole and water collection integrated device according to claim 5, characterized in that, A gas sensor and a carbon monoxide sensor (14) are fixedly installed on the third chamber (10).

7. The integrated device for drilling anti-spray hole and water collection according to claim 1, wherein: A first slag removal port (11) is arranged on the side of the first chamber (8), a second slag removal port (12) is arranged on the side of the second chamber (9), and a third slag removal port (13) is arranged on the side of the third chamber (10).

8. The integrated device for drilling and blowout prevention and water collection according to claim 1, wherein There are two anti-blowout branch pipes (3).

Images