CN117005906B - Intelligent gas extraction device and method in coal mine tunnel - Google Patents
Intelligent gas extraction device and method in coal mine tunnel Download PDFInfo
- Publication number
- CN117005906B CN117005906B CN202311163216.5A CN202311163216A CN117005906B CN 117005906 B CN117005906 B CN 117005906B CN 202311163216 A CN202311163216 A CN 202311163216A CN 117005906 B CN117005906 B CN 117005906B
- Authority
- CN
- China
- Prior art keywords
- gas
- ring
- pipe
- sealing
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 99
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 24
- 239000007789 gas Substances 0.000 claims abstract description 172
- 238000007789 sealing Methods 0.000 claims abstract description 106
- 239000011261 inert gas Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 19
- 239000000565 sealant Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the field of gas extraction devices, in particular to an intelligent gas extraction device in a coal mine roadway, which comprises an extraction drill pipe, wherein a sealing mechanism is movably connected inside the extraction drill pipe, one side of the extraction drill pipe is provided with an inflation pipe, the inside of the inflation pipe is movably connected with an exhaust mechanism, and the right end of the inflation pipe is provided with an inert gas transmission pipe. The intelligent gas extraction device and the intelligent gas extraction method in the coal mine tunnel consist of a sealing mechanism and an exhaust mechanism; after the gas layer is drilled into the extraction drill pipe, the left end of the extraction drill pipe releases the supporting pressure of rock and soil, at the moment, the compression spring elastically recovers to move leftwards along with the T-shaped movable rod, so that the four arc-shaped supporting blocks move oppositely and prop up along with the sealing rubber ring, the outer ring of the sealing rubber ring is extruded from the inner side of the annular groove and is supported and pressed on the inner wall of a drilled hole, automatic sealing is timely carried out between the outer part of the extraction drill pipe and the inner wall of the drilled hole, grouting sealing is avoided to be carried out on the position of the drilled hole independently, and the operation convenience is improved.
Description
Technical Field
The invention relates to the field of gas extraction devices, in particular to an intelligent gas extraction device and an intelligent gas extraction method in a coal mine roadway.
Background
In the process of mining the coal mine, gas in the coal seam of the coal mine needs to be extracted so as to prevent accidents from occurring after the gas is discharged, when the gas is extracted by the current gas extraction device, firstly, a rock stratum is usually drilled, a extraction pipe extends into the drilled hole, then hole sealing is carried out by using a hole sealing agent, and then negative pressure extraction is carried out.
The prior patent (bulletin number: CN 112127940A) discloses a coal mine gas extraction device, which comprises a gas collecting box, a gas pump station, a gas-liquid separator and an extraction pipe; one end of the extraction pipe extending into the drill hole is fixed with an arc head, and an extraction hole group is arranged on the arc head. The inventor finds that the following problems in the prior art are not solved well in the process of realizing the scheme: 1. in the using process of the gas extraction device, after the extraction pipe is installed, grouting and sealing are carried out on the gap position between the extraction pipe and the inner wall of the drill hole, the sealing operation period is long, and the operation convenience is poor; 2. along with the gradual drainage of the gas in the gas layer to the outside, the gas amount in the gas layer is gradually reduced, and the gas is too dispersed at the moment, so that the gas is difficult to be effectively drained.
Disclosure of Invention
The invention aims to provide an intelligent gas extraction device and an intelligent gas extraction method in a coal mine roadway, which are used for solving the problems in the background art: 1. the sealing operation convenience is poor in the use process of the existing partial gas extraction device; 2. in the use process of the existing partial gas extraction device, along with the reduction of gas in a gas layer, the effective extraction is difficult. In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a gas intelligence drainage device in colliery tunnel, includes the drainage drill pipe, the inside swing joint of drainage drill pipe has sealing mechanism, one side of drainage drill pipe is provided with the gas tube, the inside swing joint of gas tube has exhaust mechanism, inert gas transmission pipe is installed to the right-hand member of gas tube.
Preferably, the sealing mechanism comprises an annular groove, the annular groove is arranged on the left side of the outer wall of the extraction drill pipe, arc-shaped supporting blocks are lapped on the periphery of the inner wall of the annular groove, and sealing glue rings are movably sleeved on the outer sides of the four arc-shaped supporting blocks;
t-shaped movable grooves are formed in the periphery of the inner part of the extraction drill pipe, T-shaped movable rods are connected in a sliding manner in the T-shaped movable grooves, and adjusting grooves matched with the annular grooves are formed in the left side of the inner wall of the T-shaped movable grooves;
The left side of the T-shaped movable rod is fixedly sleeved with a U-shaped adjusting block, the U-shaped adjusting block is arranged in an adjusting groove, the inner wall of the adjusting groove is provided with a groove, the inside of the groove is provided with a compression spring, and the compression spring is movably sleeved on the surface of the T-shaped movable rod;
the two sides of the U-shaped adjusting block are provided with inclined grooves, a sliding rod is connected between the two inclined grooves in a sliding manner, the middle part of the sliding rod is fixedly connected with a connecting block, and one end of the connecting block penetrates through the adjusting groove and is fixedly connected with the side wall of the adjacent arc-shaped supporting block;
The right end of the T-shaped movable rod is fixedly connected with a top block, and the right end of the extraction drill pipe is provided with an air duct joint matched with the top block;
The middle part of taking out and adopting the drill pipe has seted up the through-hole, the left end overlap joint of taking out and adopting the drill pipe has with through-hole matched with toper sealing block, all fixedly connected with connecting rod around the toper sealing block, four the one end of connecting rod respectively with four the lateral wall fixed connection of T type movable rod.
Preferably, one end of the compression spring is lapped on the inner wall of the groove, and the other end of the compression spring is lapped on the side wall of the U-shaped adjusting block.
Preferably, the left end of the through hole is provided with a conical surface matched with the conical sealing block, and the right end of the inner wall of the through hole is fixedly connected with a pressing valve.
Preferably, the exhaust mechanism comprises a limiting conical ring, the outer ring of the limiting conical ring is fixedly connected to the left side of the inner wall of the gas charging tube, the middle part of the inner wall of the gas charging tube is slidably connected with a piston ring, the inner wall of the gas charging tube is fixedly connected with a baffle ring, and the right side of the piston ring is overlapped with the left side of the baffle ring;
The middle part of the piston ring is fixedly connected with an air inlet pipe, the left end of the air inlet pipe penetrates through the piston ring to be rotationally connected with an air dispersing ring, the periphery of the outer ring of the air dispersing ring is fixedly connected with an exhaust head, the left side of the air dispersing ring is fixedly connected with an exhaust hose, and the left end of the exhaust hose penetrates through a limiting conical ring to be lapped on the inner bottom surface of the air charging pipe;
The right side of the inner wall of the inflation tube is fixedly connected with a sealing sleeve, the middle part of the sealing sleeve is provided with a conical groove, the right end of the air inlet tube penetrates through the baffle ring to be movably inserted into the conical groove, and the left side of the air inlet tube is movably sleeved with a reset spring matched with the side wall of the baffle ring;
The utility model discloses a sealing sleeve, including seal cover, sealing sleeve, ejector pin, adjusting spring, air inlet groove has all been seted up to the both sides of seal cover inner wall, the T type draw-in groove with toper groove matched with is seted up to the inner wall of air inlet groove, the inside sliding connection of T type draw-in groove has the closing plate, the one end fixedly connected with ejector pin of closing plate, the one end of ejector pin runs through T type draw-in groove overlap joint at the lateral wall of intake pipe, one side activity that the closing plate was kept away from to the ejector pin has cup jointed with T type draw-in groove matched with adjusting spring.
Preferably, the left side of the outer wall of the air inlet pipe is fixedly sleeved with a limiting ring, one end of the return spring is lapped on the left side of the limiting ring, and the other end of the return spring is lapped on the right side of the baffle ring;
and a sealing bearing is fixedly connected between the left end of the air inlet pipe and the air dispersing ring.
Preferably, a conical sealing groove is formed in the inner wall of the air inlet groove, and one side, away from the ejector rod, of the sealing plate is a conical surface;
The ejector rod is fixedly connected with a raised head at one end far away from the sealing plate, the ejector rod is in lap joint with the side wall of the air inlet pipe through the raised head, and one end of the adjusting spring is in lap joint with the side wall of the raised head.
The application method of the intelligent gas extraction device in the coal mine roadway comprises the following steps:
S1, when the gas extraction device for the coal mine tunnel is used, the right end of the extraction drill pipe is clamped by a drilling machine, the extraction drill pipe is drilled into a gas layer in the coal mine tunnel, when the T-shaped movable rod at the left end of the extraction drill pipe releases the pressure of a soil layer, the compression spring elastically restores and presses the T-shaped movable rod and the U-shaped adjusting block to move leftwards, in the matched sliding process of the chute and the slide bar on the side wall of the U-shaped adjusting block, the connecting block moves towards the outer direction of the annular groove along with the arc-shaped supporting blocks, so that the four arc-shaped supporting blocks move oppositely and prop up along with the sealing rubber ring, and the outer ring of the sealing rubber ring is extruded from the annular groove and pressed on the inner wall of the drill hole, so that automatic sealing is performed between the outer part of the extraction drill pipe and the inner wall of the drill hole in time;
S2, when the four T-shaped movable rods move leftwards, the four T-shaped movable rods move synchronously through the connecting rods with the conical sealing blocks, so that the left end of the through hole is in a sealing state, then the drilling machine is detached from the right end of the extraction drill pipe, the air duct joint is fixedly connected with the right end of the extraction drill pipe, at the moment, the right end of the T-shaped movable rods is pressed by the air duct joint, the T-shaped movable rods move leftwards with the U-shaped adjusting blocks, the sealing rubber ring is further expanded and stably attached to the inner wall of the drilling hole, then an external negative pressure pump is started, and gas in the gas layer is extracted through the through hole in the middle of the extraction drill pipe;
s3, drilling an air charging pipe into the gas layer through a drilling machine, sealing the outer wall of the air charging pipe and the drilling position, generating negative pressure in the gas layer after gas in the gas layer is gradually extracted, enabling a piston ring in the air charging pipe to move leftwards under the action of the negative pressure at the moment, enabling a piston ring to move leftwards along an air inlet pipe in the air charging pipe, enabling the right end of the air inlet pipe to release the sealing state with a sealing sleeve at the moment, enabling a sealing plate to move towards the inside of a T-shaped clamping groove under the elastic recovery action of an adjusting spring, and enabling the sealing plate to release the sealing of the position of an air inlet groove, so that gas in an inert gas transmission pipe flows into the air inlet pipe from the position of the air inlet groove;
S4, after the air flow enters the air dispersing ring from the inside of the air inlet pipe, a small part of air is discharged from the positions of the exhaust heads around the air dispersing ring, so that the air dispersing ring rotates with the exhaust hose, at the moment, the exhaust hose rotates in the left end of the air charging pipe, and a large amount of inert gas is discharged into the gas layer from the left end of the exhaust hose, so that the left end of the exhaust hose generates a reaction force in the exhaust process, the exhaust hose is severely vibrated in the rotation process, and the exhaust hose is enabled to carry the inert gas to the gas layer and simultaneously disturb the gas in the gas layer.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, through the matched use of the components such as the extraction drill pipe, the sealant ring and the T-shaped movable rod, after the extraction drill pipe drills into the gas layer, the left end of the extraction drill pipe releases the pressure of rock and soil, at the moment, the compression spring elastically restores to move leftwards with the T-shaped movable rod, so that the four arc-shaped supporting blocks move backwards and prop up with the sealant ring, the outer ring of the sealant ring is extruded from the annular groove and props against the inner wall of the drill hole, the automatic sealing is timely carried out between the outer part of the extraction drill pipe and the inner wall of the drill hole, the intelligence in the use process of the gas extraction device is reflected, the grouting sealing is avoided to be carried out on the drill hole position independently, and the operation convenience is improved.
According to the invention, through the cooperation of the components such as the extraction drill pipe, the exhaust mechanism, the gas charging pipe and the like, negative pressure is generated in the gas layer along with the extraction of gas in the gas layer, the piston ring belt moves leftwards in the gas charging pipe along with the gas charging pipe, the right end of the gas charging pipe is relieved from the sealing state of the sealing sleeve, at the moment, inert gas flow enters the gas dispersing ring from the gas charging pipe, and then a small part of gas is discharged from the position of the exhaust head around the gas dispersing ring, so that the gas dispersing ring rotates with the exhaust hose, the left end of the exhaust hose generates a reaction force in the exhaust process, the exhaust hose generates intense shaking in the rotation process, the gas in the gas layer is disturbed, the gas circulation is improved, and the extraction effect is improved.
According to the invention, through the matched use of the parts such as the air duct connector, the extraction drill pipe, the T-shaped movable rod and the like, after the air duct connector is fixedly connected with the right end of the extraction drill pipe, the right end of the T-shaped movable rod is pressed by the air duct connector, so that the T-shaped movable rod moves leftwards with the U-shaped adjusting block, the sealing rubber ring is further expanded and stably attached to the inner wall of the drill hole, and the sealing stability of the sealing rubber ring is effectively improved.
Drawings
FIG. 1 is a front view of the extraction drill pipe and gas tube positions of the present invention;
FIG. 2 is a front cross-sectional view of a partial position of an extraction drill pipe of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2B in accordance with the present invention;
FIG. 5 is a side cross-sectional view of the T-shaped movable rod and U-shaped adjusting block positions of the present invention;
FIG. 6 is a front cross-sectional view of a partial position of an inflatable tube of the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 6 at C in accordance with the present invention;
FIG. 8 is a left side view of the extraction drill pipe and tapered seal block position of the present invention;
FIG. 9 is a left cross-sectional view of the diffuser tube and exhaust hose positions of the present invention;
FIG. 10 is a perspective view of the U-shaped adjustment block and chute position of the present invention.
In the figure: 1. extracting the drill pipe; 2. a sealing mechanism; 201. a ring groove; 202. an arc-shaped supporting block; 203. a sealant ring; 204. a T-shaped movable groove; 205. a T-shaped movable rod; 206. an adjustment tank; 207. a U-shaped adjusting block; 208. a groove; 209. a compression spring; 210. a chute; 211. a slide bar; 212. a connecting block; 213. a top block; 214. an airway tube connector; 215. a through hole; 216. a conical sealing block; 217. a connecting rod; 3. an inflation tube; 4. an exhaust mechanism; 401. limiting cone ring; 402. piston rings; 403. a baffle ring; 404. an air inlet pipe; 405. a gas dispersion ring; 406. an exhaust head; 407. an exhaust hose; 408. sealing sleeve; 409. a conical groove; 410. a return spring; 411. an air inlet groove; 412. a T-shaped clamping groove; 413. a sealing plate; 414. a push rod; 415. an adjusting spring; 5. an inert gas delivery tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 10, the present invention provides a technical solution: the utility model provides a gas intelligence drainage device in colliery tunnel, includes drainage drill pipe 1, and the inside swing joint of drainage drill pipe 1 has sealing mechanism 2, and one side of drainage drill pipe 1 is provided with gas tube 3, and the inside swing joint of gas tube 3 has exhaust mechanism 4, and inert gas transmission pipe 5 is installed to gas tube 3's right-hand member. It should be noted that: the extraction drill pipe 1 and the gas charging pipe 3 are connected with a drill bit of a drilling machine and then drill into a rock stratum, when the gas layer of the extraction drill pipe drill machine is extracted, gas can be extracted, and the drilling machine is the prior art and is not described in detail; when the extraction drill pipe 1 drills into the gas layer, the gas tube 3 drills into the gas layer, and a sealing cover is arranged in the middle of the gas tube 3, so that the gap between the gas tube 3 and the rock stratum drilling is conveniently sealed, and the gas tube 3 is installed after gas extraction is started, and the sealing cover can be sealed by adopting the prior sealing technology; and the density of the inert gas is greater than that of the gas, so that the gas charging pipe 3 is arranged at the lower part of the extraction drill pipe 1, and after the inert gas enters the gas layer, the residual gas gradually rises, thereby facilitating extraction.
In this embodiment, as shown in fig. 1 to 10, the sealing mechanism 2 includes a ring groove 201, the ring groove 201 is disposed on the left side of the outer wall of the extraction drill pipe 1, the periphery of the inner wall of the ring groove 201 is lapped with arc-shaped supporting blocks 202, and the outer sides of the four arc-shaped supporting blocks 202 are movably sleeved with a sealant ring 203. It should be noted that: the cross section of the ring groove 201 is set to be T-shaped, when the sealant ring 203 moves along with the arc-shaped supporting block 202 to the outside of the ring groove 201, two sides of the outer ring of the sealant ring 203 are overlapped with two sides of the inner wall of the ring groove 201, and the middle position of the outer ring of the sealant ring 203 is propped against the inner wall of a drill hole, so that a gap between the drill hole and the extraction drill pipe 1 is sealed.
T-shaped movable grooves 204 are formed in the periphery of the inner portion of the extraction drill pipe 1, T-shaped movable rods 205 are connected in a sliding mode in the T-shaped movable grooves 204, and adjusting grooves 206 matched with the annular grooves 201 are formed in the left side of the inner wall of the T-shaped movable grooves 204.
The left side of T type movable rod 205 is fixed to be cup jointed U type regulating block 207, and U type regulating block 207 sets up in the inside of adjustment tank 206, and recess 208 has been seted up to the inner wall of adjustment tank 206, and the inside of recess 208 is provided with compression spring 209, and compression spring 209 activity cup joints the surface at T type movable rod 205.
Chute 210 has all been seted up to the both sides of U type regulating block 207, and sliding connection has slide bar 211 between two chute 210, and the middle part fixedly connected with connecting block 212 of slide bar 211, the lateral wall fixed connection of regulating groove 206 and adjacent arc supporting shoe 202 is run through to one end of connecting block 212.
The right end of the T-shaped movable rod 205 is fixedly connected with a top block 213, and the right end of the extraction drill pipe 1 is provided with an air guide pipe joint 214 matched with the top block 213. It should be noted that: when the air duct joint 214 is arranged at the right end position of the extraction drill rod, the left end of the air duct joint 214 can be propped against the side wall of the top block 213 to limit the T-shaped movable rod 205 fixedly connected with the top block 213, so that the T-shaped movable rod can not move rightwards after the air duct joint is arranged, and the sealing stability of the sealing rubber ring 203 is further improved; the air duct joint 214 is connected with an external negative pressure pump, so that gas can be conveniently pumped to the outside.
The middle part of taking out and having offered through-hole 215, take out and take out the left end overlap joint of taking out and taking out the pipe 1 and have the toper sealing block 216 that matches with through-hole 215, all fixedly connected with connecting rod 217 around the toper sealing block 216, the lateral wall fixed connection of four connecting rods 217 with four T type movable rods 205 respectively.
In this embodiment, as shown in fig. 1 to 10, one end of the compression spring 209 is overlapped on the inner wall of the groove 208, and the other end of the compression spring 209 is overlapped on the side wall of the U-shaped adjusting block 207.
In this embodiment, as shown in fig. 1 to 10, the left end of the through hole 215 is a conical surface matching with the conical sealing block 216, and the right end of the inner wall of the through hole 215 is fixedly connected with a pressing valve. It should be noted that: when the side wall of the conical sealing block 216 is attached to the conical surface of the through hole 215, the conical sealing block 216 can effectively seal the inside of the through hole 215 in the drilling process of the extraction drill pipe 1; after the air duct joint 214 is fixedly mounted with the right end of the extraction drill pipe 1, the air duct joint 214 abuts against the surface of the pressing valve, the pressing valve is opened at the moment, so that gas can be transmitted inside the through hole 215, and after the air duct joint 214 is dismounted, the pressing valve can be automatically closed in time, so that the use safety of gas extraction equipment is improved, and the pressing valve is of the prior art and is not described in detail herein.
In this embodiment, as shown in fig. 1 to 10, the exhaust mechanism 4 includes a limiting cone ring 401, an outer ring of the limiting cone ring 401 is fixedly connected to the left side of the inner wall of the air charging tube 3, a piston ring 402 is slidably connected to the middle part of the inner wall of the air charging tube 3, a baffle ring 403 is fixedly connected to the inner wall of the air charging tube 3, and the right side of the piston ring 402 is overlapped with the left side of the baffle ring 403. It should be noted that: the outer ring of the piston ring 402 is attached to the inner wall of the gas charging tube 3, and when negative pressure is generated in the gas layer at the left end of the gas charging tube 3, the piston ring 402 can slide leftwards.
The middle part fixedly connected with intake pipe 404 of piston ring 402, the left end of intake pipe 404 runs through piston ring 402 and rotates and be connected with the gas dispersing ring 405, and the equal fixedly connected with of periphery of gas dispersing ring 405 outer lane is equipped with exhaust head 406, and the left side fixedly connected with exhaust hose 407 of gas dispersing ring 405, the left end of exhaust hose 407 runs through spacing conical ring 401 overlap joint in the interior bottom surface of gas tube 3. It should be noted that: the inner ring of the piston ring 402 and the outer ring of the air inlet pipe 404 are in a sealing state, and the air dispersing ring 405, the air inlet pipe 404 and the air exhaust hose 407 are communicated, so that inert gas can flow into the air dispersing ring 405 and the air exhaust hose 407 from the air inlet pipe 404; the aperture of the exhaust head 406 is small, when the gas is exhausted from the position of the exhaust head 406, the gas dispersing ring 405 can rotate at the left end of the gas inlet pipe 404 under the effect of reaction, and the inert gas conveyed in the gas charging pipe 3 is the pressurized gas.
The right side of the inner wall of the air charging pipe 3 is fixedly connected with a sealing sleeve 408, the middle part of the sealing sleeve 408 is provided with a conical groove 409, the right end of the air charging pipe 404 penetrates through the baffle ring 403 to be movably inserted into the conical groove 409, and the left side of the air charging pipe 404 is movably sleeved with a reset spring 410 matched with the side wall of the baffle ring 403. It should be noted that: the right end of the air inlet pipe 404 is provided with a conical shape, and the inner wall of the conical groove 409 is provided with a sealing rubber pad, so that the right end of the air inlet pipe 404 is conveniently inserted into the conical groove 409 for sealing.
The air inlet slot 411 has all been seted up to the both sides of seal cover 408 inner wall, and T type draw-in groove 412 with the assorted of taper groove 409 has been seted up to the inner wall in air inlet slot 411, and the inside sliding connection of T type draw-in groove 412 has closing plate 413, and the one end fixedly connected with ejector pin 414 of closing plate 413, the one end of ejector pin 414 runs through T type draw-in groove 412 overlap joint at the lateral wall of intake pipe 404, and ejector pin 414 is kept away from one side activity of closing plate 413 and has been cup jointed with T type draw-in groove 412 matched with adjusting spring 415.
In this embodiment, as shown in fig. 1 to 10, a limiting ring is fixedly sleeved on the left side of the outer wall of the air inlet pipe 404, one end of the return spring 410 is lapped on the left side of the limiting ring, and the other end of the return spring 410 is lapped on the right side of the baffle ring 403.
A sealing bearing is fixedly connected between the left end of the air inlet pipe 404 and the air dispersing ring 405. It should be noted that: the air dispersing ring 405 can stably rotate at the left end of the air inlet pipe 404 through the arrangement of a sealing bearing; the exhaust hose 407 is eccentrically arranged at the left side of the gas dispersing ring 405, when inert gas at the right end of the gas charging pipe 3 enters the gas dispersing ring 405 and the inside of the exhaust hose 407 from the gas inlet pipe 404, the exhaust hose 407 rotates and shakes in the process of discharging the inert gas into the gas layer, the gas in the gas layer is disturbed, and the flowing effect of the gas is promoted, so that the gas extraction efficiency is improved.
In this embodiment, as shown in fig. 1 to 10, a tapered seal groove is formed in the inner wall of the air inlet slot 411, and a tapered surface is formed on the side of the seal plate 413 away from the ejector pin 414.
One end of the ejector rod 414, which is far away from the sealing plate 413, is fixedly connected with a convex head, the ejector rod 414 is overlapped with the side wall of the air inlet pipe 404 through the convex head, and one end of the adjusting spring 415 is overlapped with the side wall of the convex head. It should be noted that: after the projection at one end of the ejector pin 414 is pressed, the ejector pin 414 is inserted into the tapered seal groove with the sealing plate 413, and the position of the air inlet slot 411 is sealed.
In this embodiment, as shown in fig. 1 to 10, a method for using an intelligent gas extraction device in a coal mine roadway includes the following steps:
S1, when the gas extraction device for the coal mine tunnel is used, firstly, the right end of the extraction drill pipe 1 is clamped through a drilling machine, the extraction drill pipe 1 is drilled into a gas layer in the coal mine tunnel, when the T-shaped movable rod 205 at the left end of the extraction drill pipe 1 releases the pressure of a soil layer, the compression spring 209 elastically restores and presses the T-shaped movable rod 205 and the U-shaped adjusting block 207 to move leftwards, in the process of matching sliding of the chute 210 on the side wall of the U-shaped adjusting block 207 and the sliding rod 211, the connecting block 212 moves towards the outer direction of the annular groove 201 along with the arc-shaped supporting blocks 202, so that the four arc-shaped supporting blocks 202 move oppositely and are propped up along with the sealant ring 203, the outer ring of the sealant ring 203 is extruded from the inner side of the annular groove 201 and is propped against the inner wall of the drill hole, and automatic sealing is performed between the outer part of the extraction drill pipe 1 and the inner wall of the drill hole in time;
S2, when the four T-shaped movable rods 205 move leftwards, the four T-shaped movable rods 205 move synchronously with the conical sealing blocks 216 through the connecting rods 217, so that the left end of the through hole 215 is in a sealing state, then the drilling machine is detached from the right end of the extraction drill pipe 1, the air guide pipe joint 214 is fixedly connected with the right end of the extraction drill pipe 1, at the moment, the right end of the T-shaped movable rods 205 is pressed by the air guide pipe joint 214, so that the T-shaped movable rods 205 move leftwards with the U-shaped adjusting blocks 207, the sealing rubber ring 203 is further expanded and stably attached to the inner wall of the drill hole, then an external negative pressure pump is started, and gas in the gas layer is extracted through the through hole 215 in the middle of the extraction drill pipe 1;
s3, drilling the gas charging tube 3 into the gas layer through a drilling machine, sealing the outer wall of the gas charging tube 3 and the drilling position, generating negative pressure in the gas layer after gas in the gas layer is gradually extracted, moving a piston ring 402 in the gas charging tube 3 leftwards under the action of the negative pressure at the moment, enabling the piston ring 402 to move leftwards with a gas inlet pipe 404 in the gas charging tube 3, releasing the sealing state of the right end of the gas inlet pipe 404 and a sealing sleeve 408 at the moment, enabling a sealing plate 413 to move towards the inside of a T-shaped clamping groove 412 under the elastic recovery action of an adjusting spring 415, and then releasing the sealing of the sealing plate 413 to the position of the gas inlet groove 411, so that gas in the inert gas transmission tube 5 flows into the gas inlet pipe 404 from the position of the gas inlet groove 411;
S4, after the air flow enters the gas dispersing ring 405 from the inside of the air inlet pipe 404, a small part of air is discharged from the positions of the air discharge heads 406 around the gas dispersing ring 405, so that the gas dispersing ring 405 rotates with the air discharge hose 407, at the moment, the air discharge hose 407 rotates in the left end of the air charging pipe 3, and a large amount of inert gas is discharged into the gas layer from the left end of the air discharge hose 407, so that the left end of the air discharge hose 407 generates a reaction force in the air discharge process, the air discharge hose 407 severely shakes in the rotation process, and the air discharge hose 407 can simultaneously convey the inert gas to the inside of the gas layer and disturb the gas in the gas layer.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a gas intelligence drainage device in colliery tunnel, includes drainage drill pipe (1), its characterized in that: the inside of the extraction drill pipe (1) is movably connected with a sealing mechanism (2), one side of the extraction drill pipe (1) is provided with an air charging pipe (3), the inside of the air charging pipe (3) is movably connected with an exhaust mechanism (4), and the right end of the air charging pipe (3) is provided with an inert gas transmission pipe (5);
The sealing mechanism (2) comprises annular grooves (201), the annular grooves (201) are formed in the left side of the outer wall of the extraction drill pipe (1), arc-shaped supporting blocks (202) are lapped on the periphery of the inner wall of each annular groove (201), and sealing rubber rings (203) are movably sleeved on the outer sides of the four arc-shaped supporting blocks (202);
T-shaped movable grooves (204) are formed in the periphery of the inside of the extraction drill pipe (1), T-shaped movable rods (205) are connected in a sliding mode in the T-shaped movable grooves (204), and adjusting grooves (206) matched with the annular grooves (201) are formed in the left side of the inner walls of the T-shaped movable grooves (204);
the left side of the T-shaped movable rod (205) is fixedly sleeved with a U-shaped adjusting block (207), the U-shaped adjusting block (207) is arranged in an adjusting groove (206), a groove (208) is formed in the inner wall of the adjusting groove (206), a compression spring (209) is arranged in the groove (208), and the compression spring (209) is movably sleeved on the surface of the T-shaped movable rod (205);
Both sides of the U-shaped adjusting block (207) are provided with inclined grooves (210), a sliding rod (211) is connected between the two inclined grooves (210) in a sliding manner, a connecting block (212) is fixedly connected to the middle of the sliding rod (211), and one end of the connecting block (212) penetrates through the adjusting groove (206) and is fixedly connected with the side wall of the adjacent arc-shaped supporting block (202);
The right end of the T-shaped movable rod (205) is fixedly connected with a top block (213), and the right end of the extraction drill pipe (1) is provided with an air guide pipe joint (214) matched with the top block (213);
The middle part of the extraction drill pipe (1) is provided with a through hole (215), the left end of the extraction drill pipe (1) is lapped with a conical sealing block (216) matched with the through hole (215), the periphery of the conical sealing block (216) is fixedly connected with connecting rods (217), and one ends of the four connecting rods (217) are respectively fixedly connected with the side walls of the four T-shaped movable rods (205);
The exhaust mechanism (4) comprises a limiting conical ring (401), the outer ring of the limiting conical ring (401) is fixedly connected to the left side of the inner wall of the air charging pipe (3), a piston ring (402) is slidably connected to the middle of the inner wall of the air charging pipe (3), a baffle ring (403) is fixedly connected to the inner wall of the air charging pipe (3), and the right side of the piston ring (402) is overlapped with the left side of the baffle ring (403);
The middle part of the piston ring (402) is fixedly connected with an air inlet pipe (404), the left end of the air inlet pipe (404) penetrates through the piston ring (402) to be rotationally connected with a gas dispersing ring (405), the periphery of the outer ring of the gas dispersing ring (405) is fixedly connected with an exhaust head (406), the left side of the gas dispersing ring (405) is fixedly connected with an exhaust hose (407), and the left end of the exhaust hose (407) penetrates through a limiting conical ring (401) to be lapped on the inner bottom surface of the gas charging pipe (3);
The right side of the inner wall of the inflation tube (3) is fixedly connected with a sealing sleeve (408), the middle part of the sealing sleeve (408) is provided with a conical groove (409), the right end of the air inlet tube (404) penetrates through the baffle ring (403) and is movably inserted into the conical groove (409), and the left side of the air inlet tube (404) is movably sleeved with a reset spring (410) matched with the side wall of the baffle ring (403);
The utility model discloses a sealing sleeve (408) is characterized in that an air inlet slot (411) is formed in both sides of the inner wall of the sealing sleeve (408), a T-shaped clamping slot (412) matched with a conical slot (409) is formed in the inner wall of the air inlet slot (411), a sealing plate (413) is connected in a sliding mode in the T-shaped clamping slot (412), a push rod (414) is fixedly connected with one end of the sealing plate (413), one end of the push rod (414) penetrates through the side wall of the T-shaped clamping slot (412) and is lapped on the air inlet pipe (404), and an adjusting spring (415) matched with the T-shaped clamping slot (412) is movably sleeved on one side, far away from the sealing plate (413), of the push rod (414).
2. The intelligent gas extraction device in a coal mine roadway according to claim 1, wherein: one end of the compression spring (209) is lapped on the inner wall of the groove (208), and the other end of the compression spring (209) is lapped on the side wall of the U-shaped adjusting block (207).
3. The intelligent gas extraction device in a coal mine roadway according to claim 1, wherein: the left end of the through hole (215) is provided with a conical surface matched with the conical sealing block (216), and the right end of the inner wall of the through hole (215) is fixedly connected with a pressing valve.
4. The intelligent gas extraction device in a coal mine roadway according to claim 1, wherein: a limiting ring is fixedly sleeved on the left side of the outer wall of the air inlet pipe (404), one end of the return spring (410) is lapped on the left side of the limiting ring, and the other end of the return spring (410) is lapped on the right side of the baffle ring (403);
a sealing bearing is fixedly connected between the left end of the air inlet pipe (404) and the air dispersing ring (405).
5. The intelligent gas extraction device in a coal mine roadway according to claim 1, wherein: a conical sealing groove is formed in the inner wall of the air inlet groove (411), and one side, away from the ejector rod (414), of the sealing plate (413) is a conical surface;
One end of the ejector rod (414) far away from the sealing plate (413) is fixedly connected with a raised head, the ejector rod (414) is in lap joint with the side wall of the air inlet pipe (404) through the raised head, and one end of the adjusting spring (415) is in lap joint with the side wall of the raised head.
6. The application method of the intelligent gas extraction device in the coal mine tunnel according to claim 1, comprising the following steps:
S1, when the gas extraction device for the coal mine tunnel is used, the right end of the extraction drill pipe (1) is clamped through a drilling machine, the extraction drill pipe (1) is drilled into a gas layer in the coal mine tunnel, when a T-shaped movable rod (205) at the left end of the extraction drill pipe (1) releases the pressure of a soil layer, a compression spring (209) elastically restores and presses the T-shaped movable rod (205) and a U-shaped adjusting block (207) to move leftwards, and in the matched sliding process of a chute (210) and a sliding rod (211) on the side wall of the U-shaped adjusting block (207), a connecting block (212) moves towards the outer direction of a ring groove (201) along with an arc-shaped supporting block (202), so that the four arc-shaped supporting blocks (202) move oppositely and prop open along with a sealant ring (203), and the outer ring of the sealant ring (203) is extruded from the inner side of the ring groove (201) and pressed on the inner wall of a drilled hole, and automatic sealing is carried out between the outer part of the extraction drill pipe (1) and the inner wall of the drilled hole in time;
s2, when the four T-shaped movable rods (205) move leftwards, the four T-shaped movable rods (205) move synchronously through the connecting rods (217) with the conical sealing blocks (216), the left ends of the through holes (215) are relieved of the sealing state, then the drilling machine is detached from the right end of the extraction drill pipe (1), the air duct joint (214) is fixedly connected with the right end of the extraction drill pipe (1), at the moment, the right end of the T-shaped movable rods (205) is pressed by the air duct joint (214), the T-shaped movable rods (205) move leftwards with the U-shaped adjusting blocks (207) further, the sealing rubber rings (203) are further expanded and stably attached to the inner walls of the drill holes, then an external negative pressure pump is started, and gas in the gas layer is extracted through the through holes (215) in the middle of the extraction drill pipe (1);
S3, drilling the gas charging pipe (3) into the gas layer through a drilling machine, sealing the outer wall of the gas charging pipe (3) and the drilling position, generating negative pressure in the gas layer after gas in the gas layer is gradually extracted, enabling a piston ring (402) in the gas charging pipe (3) to move leftwards under the action of the negative pressure at the moment, enabling the piston ring (402) to carry a gas inlet pipe (404) to move leftwards in the gas charging pipe (3), enabling the right end of the gas inlet pipe (404) to release a sealing state with a sealing sleeve (408), enabling a sealing plate (413) to move towards the inside of a T-shaped clamping groove (412) under the elastic recovery action of an adjusting spring (415), enabling the sealing plate (413) to release the sealing of the position of the gas inlet groove (411), and enabling gas in the inert gas transmission pipe (5) to flow into the gas inlet pipe (404) from the position of the gas inlet groove (411);
S4, after air flow enters the gas dispersing ring (405) from the inside of the air inlet pipe (404), a small part of air is discharged from the position of the exhaust head (406) around the gas dispersing ring (405), so that the gas dispersing ring (405) rotates with the exhaust hose (407), at the moment, the exhaust hose (407) rotates in the left end of the air charging pipe (3), a large amount of inert gas is discharged into the gas layer from the left end of the exhaust hose (407), the left end of the exhaust hose (407) generates a reaction force in the exhaust process, the exhaust hose (407) is severely vibrated in the rotation process, and the exhaust hose (407) is used for conveying the inert gas in the gas layer and simultaneously disturbing the gas in the gas layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311163216.5A CN117005906B (en) | 2023-09-07 | 2023-09-07 | Intelligent gas extraction device and method in coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311163216.5A CN117005906B (en) | 2023-09-07 | 2023-09-07 | Intelligent gas extraction device and method in coal mine tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117005906A CN117005906A (en) | 2023-11-07 |
| CN117005906B true CN117005906B (en) | 2024-06-07 |
Family
ID=88561928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311163216.5A Active CN117005906B (en) | 2023-09-07 | 2023-09-07 | Intelligent gas extraction device and method in coal mine tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117005906B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214330683U (en) * | 2021-01-30 | 2021-10-01 | 陕西彬长矿业集团有限公司 | Coal mine gas extraction device |
| CN113464195A (en) * | 2021-07-29 | 2021-10-01 | 华北科技学院(中国煤矿安全技术培训中心) | Mining non-solidification type gas drainage device with good sealing performance |
| CN216788357U (en) * | 2022-01-17 | 2022-06-21 | 焦作市全安科技有限公司 | Coal mine gas extraction hole sealing device |
| CN218669312U (en) * | 2022-07-08 | 2023-03-21 | 王豪 | Integrative hole sealing device of pressure measurement is taken out in same direction as coal seam drilling gas |
| CN218759813U (en) * | 2022-11-22 | 2023-03-28 | 贵州实璞矿用新材料有限公司 | Material-saving gas hole sealing device |
-
2023
- 2023-09-07 CN CN202311163216.5A patent/CN117005906B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214330683U (en) * | 2021-01-30 | 2021-10-01 | 陕西彬长矿业集团有限公司 | Coal mine gas extraction device |
| CN113464195A (en) * | 2021-07-29 | 2021-10-01 | 华北科技学院(中国煤矿安全技术培训中心) | Mining non-solidification type gas drainage device with good sealing performance |
| CN216788357U (en) * | 2022-01-17 | 2022-06-21 | 焦作市全安科技有限公司 | Coal mine gas extraction hole sealing device |
| CN218669312U (en) * | 2022-07-08 | 2023-03-21 | 王豪 | Integrative hole sealing device of pressure measurement is taken out in same direction as coal seam drilling gas |
| CN218759813U (en) * | 2022-11-22 | 2023-03-28 | 贵州实璞矿用新材料有限公司 | Material-saving gas hole sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117005906A (en) | 2023-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108757000B (en) | A kind of quick slot orientation fracturing system in underground based on drilling machine power and method | |
| CN108678802B (en) | Coal mine drilling, punching and drawing integrated outburst prevention device and method | |
| CN108843379B (en) | Axial grooving pressure relief and permeability increasing method for coal mine underground gas extraction drill hole | |
| CN105840134B (en) | Wear layer single pouch injection hole sealing device of uplink drilling and its a method for sealing | |
| CN204851052U (en) | Integration equipment that punches a hole is crept into in colliery crawler -type in pit | |
| CN103352718B (en) | Fully-sealed wind power slagging gas-drainage deep well drilling system and method | |
| CN104895484A (en) | Coal mine downhole crawler type drilling and punching integrated equipment | |
| CN102094668B (en) | High-pressure hydraulic tunneling, pressure releasing and protrusion removing method for upper drainage roadway | |
| CN204827222U (en) | Hydrodrill with drill way blowout preventer | |
| CN110469297B (en) | Device and method for completing long-distance sieve tube in coal mine underground gas extraction directional drilling | |
| CN102296978B (en) | Coal-face flooding hole packer | |
| CN117005906B (en) | Intelligent gas extraction device and method in coal mine tunnel | |
| CN101864982A (en) | Mechanical coal wall water injection hole sealing device | |
| CN110374665B (en) | Gas collection device for extraction drilling of extremely soft coal seam and use method | |
| WO2019205472A1 (en) | Controllable pressure injection apparatus based on hydraulic accumulator and method therefor | |
| CN103195380A (en) | Hole sealing device | |
| CN204827294U (en) | Punch a hole with blowout preventer's drill way fixed structure in colliery | |
| CN110043207B (en) | Underground adjustable self-advancing carbon dioxide jet drilling repairing device and method | |
| CN201723195U (en) | Fool-type gas drainage hole sealing device | |
| CN214576851U (en) | Hydraulic-driven automatic dredging device for gas extraction drill hole | |
| CN203374202U (en) | High-pressure underwater down-hole hammer | |
| CN110359907A (en) | A kind of brill-expands-fills the coal-mining method of hydraulic reaming coal cutting | |
| CN201723245U (en) | Liquid injection type hole plugging device in gas drainage | |
| CN212337212U (en) | Device for coal mine tunnel pressurized drilling | |
| CN211081791U (en) | Bag type blowout prevention hole sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |