CN216446888U

CN216446888U - Quick hole sealing device of gas drainage drilling

Info

Publication number: CN216446888U
Application number: CN202122626648.8U
Authority: CN
Inventors: 王德振
Original assignee: Shanxi Congxin Hydraulic Technology Group Co ltd
Current assignee: Shanxi Congxin Hydraulic Technology Group Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-06
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a rapid hole sealing device for a gas extraction drill hole, and relates to the technical field of gas extraction. According to the extraction pipe, the fixing ring, the limiting plate, the limiting vertical cone, the extension spring, the movable ring, the connecting plate, the limiting column and the limiting block are arranged in a matched mode, when the extraction pipe is used, the extraction pipe is inserted into a drill hole along the direction of the limiting plate, the movable ring has a tendency of approaching the fixing ring under the action of the tension of the extension spring, so that the limiting plates are driven to be separated from one another, the limiting vertical cone is enabled to be attached to the inner wall of the drill hole, when a machine is damaged or staff is not operated properly, the extraction pipe is ejected out of the drill hole, the limiting vertical cone moves in the reverse direction, the limiting vertical cone is enabled to be pricked into the inner wall of the drill hole, and the extraction pipe is prevented from being ejected out of the drill hole, so that article loss and personnel injury are avoided.

Description

Quick hole sealing device of gas drainage drilling

Technical Field

The utility model relates to the technical field of gas extraction, in particular to a rapid hole sealing device for a gas extraction drill hole.

Background

Mine gas is a general term for various harmful gases mainly comprising methane, which are emitted from coal and rock in the production process of coal mines, and is a main natural factor seriously threatening the safety production of coal mines. Casualties and property loss caused by gas disasters are huge, so that the prevention of the gas disasters has important significance for the healthy and sustained development of the coal industry. At present, gas extraction is an important means for controlling gas in mine operation, and during the gas extraction process, a drill hole needs to be ensured to be tightly sealed, and the gas extraction device has a longer sealing length so as to ensure the gas extraction effect. However, in the present stage, coal mines mainly include goaf gas drainage, coal seam gas drainage and the like, and the problems in the gas extraction process, namely the hole sealing length and hole sealing problem of a gas drainage drill hole, are not well solved all the time, and the current gas extraction drill hole sealing devices commonly used in the underground mainly include a polyurethane hole sealing device and a cement mortar hole sealing device.

The gas extraction drilling and hole sealing device disclosed in the Chinese utility model patent application publication No. CN 208534448U comprises a gas extraction pipe arranged in a drill hole, two sections of hole sealing bags arranged on the gas extraction pipe at intervals, a grouting pipe extending into the space between the two sections of hole sealing bags, and a slurry return pipe, and comprises a fiber net bag sleeved on the gas extraction pipe, wherein the two ends of the fiber net bag are respectively provided with a front metal fixing sleeve and a rear metal fixing sleeve, a water-absorbing expansion material is arranged in the fiber net bag, a pressure pipe communicated with the outside is arranged in the fiber net bag, although the water-absorbing expansion material in the fiber net bag of the utility model can expand when absorbing the water of the hole sealing agent, and simultaneously, the expansion material can enter each crack of rock layers through the net bag under the action of pressurization to effectively seal the drill hole, but when the gas extraction pipe is inserted in the utility model, because the bottom gas pressure is larger than the pressure of the outside air, when the machine damages or operates improperly, the utility model is easy to be ejected and drilled, thereby causing foreign object loss or personnel injury.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a rapid hole sealing device for a gas extraction drilled hole, which solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: including taking out the drainage pipe, take out the solid fixed ring of lateral surface one end fixedly connected with of drainage pipe, gu the side of fixed ring sets up flutedly, the inside of recess rotates through the round pin axle and is connected with the limiting plate, the side fixedly connected with stopper of limiting plate, spacing spout has been seted up to the side of stopper, gu the side fixedly connected with extension spring of fixed ring, extension spring's one end fixedly connected with loose ring, the side fixedly connected with connecting plate of loose ring, the side fixedly connected with of connecting plate and the spacing post of spacing spout looks adaptation.

Optionally, the number of the limiting plates is a plurality, and the limiting plates are uniformly distributed by taking the axis of the fixing ring as the circle center.

Optionally, the top fixedly connected with of limiting plate founds the awl, the quantity of spacing awl of founding has a plurality of, a plurality of spacing awl evenly distributed that founds.

Optionally, the outer side face of the extraction pipe is sleeved with two sealing plugs, a fiber net bag is arranged between the two sealing plugs, the fiber net bag is sleeved on the outer side face of the extraction pipe, and fixing sleeves are arranged at two ends of the fiber net bag.

Optionally, a water-absorbing expansion material is filled in the fiber net bag, a water injection pipe is arranged on the side surface of one of the sealing plugs, and the water injection pipe extends into the fiber net bag.

Optionally, a grouting pipe and a grout return pipe are arranged on the side surface of one of the sealing plugs, the length of the grout return pipe is smaller than that of the grouting pipe, and the grouting pipe and the grout return pipe both extend between the two sealing plugs.

(III) advantageous effects

The utility model provides a rapid hole sealing device for a gas extraction drill hole, which has the following beneficial effects:

1. this quick hole sealing device of gas drainage drilling, through setting up solid fixed ring, the limiting plate, spacing upright awl, extension spring, the loose ring, the connecting plate, spacing post, the cooperation of limiting block is used, when using, to take out the drainage pipe and insert in the drilling along the direction of limiting plate, under extension spring's pulling force effect, the loose ring has the trend of being close to solid fixed ring, thereby drive a plurality of limiting plate and part each other, thereby make spacing upright awl hug closely the inner wall of drilling, when machine damage or staff's operation is improper, take out the drainage pipe by ejecting drilling, spacing upright awl reverse movement, thereby make spacing upright awl prick in the inner wall of drilling, prevent taking out the drainage pipe by ejecting drilling, thereby article loss and personnel's injury have been avoided.

2. According to the rapid hole sealing device for the gas extraction drill hole, by arranging the sealing plug, the leakage of gas is avoided and the waste of resources is avoided in the process that the gas extraction pipe is inserted into the utility model; through setting up the fibre string bag, the expanding material that absorbs water, the water injection pipe, the slip casting pipe, the mud return pipe, during the hole sealing, through the slip casting pipe to injecting the hole sealing material between two sealing plugs, hole sealing material is gushed out until the mud return pipe, through the inside water injection of water injection pipe to the fibre string bag, the expanding material that absorbs water expands rapidly, with hole sealing material to roof pressure all around, when compressing tightly hole sealing material, also can make hole sealing material permeate the tiny crackle of drilling inner wall, avoid gas to leak from tiny crackle, make this utility model hole sealing more jail, the effect is better.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic perspective view of the limiting device of the present invention.

In the figure: 1. extracting pipes; 2. a fixing ring; 3. a limiting plate; 4. an extension spring; 5. a movable ring; 6. a connecting plate; 7. a limiting block; 8. a limiting chute; 9. a limiting column; 10. limiting vertical cones; 11. a sealing plug; 12. a fiber net bag; 13. fixing a sleeve; 14. a water injection pipe; 15. a grouting pipe; 16. a slurry return pipe; 17. and (7) drilling.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a quick hole sealing device of gas drainage drilling, including taking out and adopting pipe 1, the lateral surface cover of taking out and adopting pipe 1 is equipped with two sealing plugs 11, through setting up sealing plug 11, make this utility model insert the in-process of taking out and adopting pipe 1, avoid the leakage of gas, the waste of resource has been avoided, be provided with fibre string bag 12 between two sealing plugs 11, the inside of fibre string bag 12 is equipped with the expanding material that absorbs water, the side of one of them sealing plug 11 is provided with water injection pipe 14, water injection pipe 14 extends to the inside of fibre string bag 12, fibre string bag 12 suit is in taking out and adopting the lateral surface of pipe 1, the both ends of fibre string bag 12 all are equipped with fixed cover 13, the side of one of them sealing plug 11 is provided with slip casting pipe 15 and backlog pipe 16, the length of backlog pipe 16 is less than slip casting pipe 15, slip casting pipe 15 and backlog pipe 16 all extend to between two sealing plugs 11, through setting up fibre string bag 12, The sealing device comprises a water-absorbing expansion material, a water injection pipe 14, a grouting pipe 15 and a grout return pipe 16, wherein when the sealing is carried out, the sealing material is injected between two sealing plugs 11 through the grouting pipe 15 until the sealing material is discharged from the grout return pipe 16, water is injected into a fiber string bag 12 through the water injection pipe 14, the water-absorbing expansion material absorbs water and rapidly expands, the sealing material is pressed to the periphery, the sealing material can penetrate into tiny cracks on the inner wall of a drill hole 17 when the sealing material is pressed, gas is prevented from leaking from the tiny cracks, the utility model has firmer sealing hole and better effect, one end of the outer side surface of an extraction pipe 1 is fixedly connected with a fixing ring 2, the side surface of the fixing ring 2 is provided with a groove, the inside of the groove is rotatably connected with a plurality of limiting plates 3 through a pin shaft, the limiting plates 3 are uniformly distributed by taking the shaft center of the fixing ring 2 as the center, the top of the limiting plate 3 is fixedly connected with a limiting vertical cone 10, the number of the limiting vertical cones 10 is a plurality, the limiting vertical cones 10 are evenly distributed, the side surface of the limiting plate 3 is fixedly connected with a limiting block 7, the side surface of the limiting block 7 is provided with a limiting sliding groove 8, the side surface of the fixing ring 2 is fixedly connected with an extension spring 4, one end of the extension spring 4 is fixedly connected with a movable ring 5, the side surface of the movable ring 5 is fixedly connected with a connecting plate 6, the side surface of the connecting plate 6 is fixedly connected with a limiting column 9 matched with the limiting sliding groove 8, the extraction pipe 1 is inserted into the drill hole 17 along the direction of the limiting plate 3 when the extraction pipe is used by matching the fixing ring 2, the limiting plate 3, the limiting vertical cones 10, the extension spring 4, the movable ring 5, the connecting plate 6, the limiting column 9 and the limiting block 7, under the action of the tension of the extension spring 4, the movable ring 5 has a tendency close to the fixing ring 2, thereby driving the limiting plates 3 to separate from each other, therefore, the limiting vertical cone 10 is tightly attached to the inner wall of the drill hole 17, when the machine is damaged or the worker is not operated properly, the extraction pipe 1 is ejected out of the drill hole 17, the limiting vertical cone 10 moves reversely, the limiting vertical cone 10 is pricked into the inner wall of the drill hole 17, the extraction pipe 1 is prevented from being ejected out of the drill hole 17, and therefore article loss and personnel injury are avoided.

When the device is used, the extraction pipe 1 is inserted into the drill hole 17 along the direction of the limiting plate 3, the movable ring 5 tends to be close to the fixing ring 2 under the action of the tensile force of the tension spring 4, so that the limiting plates 3 are driven to be separated from one another, the limiting vertical cones 10 are enabled to be tightly attached to the inner wall of the drill hole 17, when a machine is damaged or staff operates improperly, the extraction pipe 1 is ejected out of the drill hole 17, the limiting vertical cones 10 move reversely, so that the limiting vertical cones 10 are pricked into the inner wall of the drill hole 17, the extraction pipe 1 is prevented from being ejected out of the drill hole 17, after the extraction pipe 1 is inserted, hole sealing materials are injected between the two sealing plugs 11 through the grouting pipe 15 until the hole sealing materials are gushed out from the slurry return pipe 16, then water is injected into the fiber net bag 12 through the water injection pipe 14, the water absorption expansion materials absorb water and press the hole sealing materials to press the periphery, and the hole sealing materials can be enabled to permeate into fine cracks on the inner wall of the drill hole sealing materials while being pressed, and gas is prevented from leaking from the fine cracks, and the hole sealing process is finished.

In conclusion, the device is matched with a fixing ring 2, a limiting plate 3, a limiting vertical cone 10, an extension spring 4, a movable ring 5, a connecting plate 6, a limiting column 9 and a limiting block 7 for use, when the device is used, the extraction pipe 1 is inserted into a drill hole 17 along the direction of the limiting plate 3, the movable ring 5 has a tendency of approaching the fixing ring 2 under the action of the tension of the extension spring 4, so that a plurality of limiting plates 3 are driven to be separated from one another, the limiting vertical cone 10 is tightly attached to the inner wall of the drill hole 17, when a machine is damaged or a worker is not operating properly, the extraction pipe 1 is ejected out of the drill hole 17, the limiting vertical cone 10 moves reversely, the limiting vertical cone 10 is inserted into the inner wall of the drill hole 17, the extraction pipe 1 is prevented from being ejected out of the drill hole 17, and article loss and personnel injury are avoided; by arranging the sealing plug 11, the utility model avoids the leakage of gas and the waste of resources in the process of inserting the extraction pipe 1; through setting up fibre string bag 12, the expanding material that absorbs water, water injection pipe 14, slip casting pipe 15, slurry return pipe 16, during the hole sealing, through slip casting pipe 15 to injecting hole sealing material between two sealing plugs 11, hole sealing material is gushed out until slurry return pipe 16, through water injection pipe 14 to the inside water injection of fibre string bag 12, the expanding material that absorbs water expands rapidly, with hole sealing material to roof pressure all around, when compressing tightly hole sealing material, also can make hole sealing material permeate to the tiny crackle of drilling 17 inner walls, avoid gas to leak from tiny crackle, make this utility model hole sealing more jail, the effect is better.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a quick hole sealing device of gas drainage drilling, includes takes out and adopts pipe (1), its characterized in that: the utility model discloses a drainage pipe, including drainage pipe (1), lateral surface one end fixedly connected with solid fixed ring (2), the side of solid fixed ring (2) is seted up flutedly, the inside of recess is rotated through the round pin axle and is connected with limiting plate (3), the side fixedly connected with stopper (7) of limiting plate (3), spacing spout (8) have been seted up to the side of stopper (7), the side fixedly connected with extension spring (4) of solid fixed ring (2), the one end fixedly connected with loose ring (5) of extension spring (4), the side fixedly connected with connecting plate (6) of loose ring (5), the side fixedly connected with of connecting plate (6) and spacing post (9) of spacing spout (8) looks adaptation.

2. The rapid hole sealing device for the gas extraction drill hole according to claim 1, characterized in that: the number of the limiting plates (3) is a plurality, and the limiting plates (3) are uniformly distributed by taking the axis of the fixing ring (2) as the circle center.

3. The rapid hole sealing device for the gas extraction drill hole according to claim 1, characterized in that: the top fixedly connected with of limiting plate (3) is spacing to found awl (10), the quantity of spacing awl (10) of standing has a plurality of, a plurality of spacing awl (10) evenly distributed that stands.

4. The device for rapidly sealing the gas extraction drill hole according to claim 1, characterized in that: the lateral surface cover of taking out adopts pipe (1) is equipped with two sealing plugs (11), two be provided with fibre string bag (12) between sealing plug (11), the lateral surface of taking out adopts pipe (1) is taken out in fibre string bag (12) suit, the both ends of fibre string bag (12) all are equipped with fixed cover (13).

5. The rapid hole sealing device for the gas extraction drill hole according to claim 4, characterized in that: the fiber net bag (12) is internally filled with a water-absorbing expansion material, the side surface of one of the sealing plugs (11) is provided with a water injection pipe (14), and the water injection pipe (14) extends to the inside of the fiber net bag (12).

6. The rapid hole sealing device for the gas extraction drill hole according to claim 4, characterized in that: the side surface of one of the sealing plugs (11) is provided with a grouting pipe (15) and a grout return pipe (16), the length of the grout return pipe (16) is smaller than that of the grouting pipe (15), and the grouting pipe (15) and the grout return pipe (16) both extend to the position between the two sealing plugs (11).