CN205577925U - A layer drilling hole sealing device is worn in gas stifled and middle water seal in two for coal mine - Google Patents

A layer drilling hole sealing device is worn in gas stifled and middle water seal in two for coal mine Download PDF

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Publication number
CN205577925U
CN205577925U CN201620377496.9U CN201620377496U CN205577925U CN 205577925 U CN205577925 U CN 205577925U CN 201620377496 U CN201620377496 U CN 201620377496U CN 205577925 U CN205577925 U CN 205577925U
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limited block
injection pipe
gas
water
swelling gasbag
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CN201620377496.9U
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史买林
程小庆
袁军伟
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SHANXI HONGHAI TRADE CO., LTD.
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史买林
袁军伟
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Abstract

A layer drilling hole sealing device is worn in gas stifled and middle water seal in two for coal mine is including mutual parallel arrangement's gas drainage pipe, gas injection pipe and water injection pipe, being equipped with first stopper, an inflated airbag, second stopper, third stopper, the 2nd inflated airbag and fourth stopper on the gas drainage pipe from inside to outside in proper order, annotating tracheal interior port and the inside intercommunication of an inflated airbag, offer the inside gas injection hole that feeds through with the 2nd inflated airbag on the gas injection pipe, the interior port of water injection pipe lies in between second stopper and the third stopper. The utility model discloses a hole sealing material be the water and the air of low price, can utilize as required and press the wind system to unify water supply system in the pit to supply it to guarantee good hole sealing quality, take out after the work of adopting whole device and can retrieve and recycle, not can to coal body, groundwater and in the pit the air cause the pollution, promoted the mine safety level, be favorable to the popularization of colliery gas control new technology.

Description

Two, colliery gas blocks up and middle water seal layer-through drilling hole sealing device
Technical field
This utility model belongs to coal mine gas diaster prevention and control and gas utilization field, is specifically related to a kind of two, colliery gas and blocks up and middle water seal layer-through drilling hole sealing device.
Background technology
Highly gassy mine is the inexorable trend of numerous colliery development.Along with the increase of mining depth, the original gas bearing capacity in coal seam is gradually increased, and with the quickening of digging operation progress, gas emission increases the most therewith, and face gas problem is still that the matter of utmost importance threatening mine normal safe to produce.Gas pumping is the fundamental policy that mine gas is administered, and the work of extraction borehole sealing of hole is one of most basic work of coal mine gas drainage, but owing to down-hole geological conditions is complex, limited by the present art simultaneously, cause that drilling and sealing is of poor quality, gas leak phenomenon is serious, thus cause the problems such as mash gas extraction concentration is on the low side, extracting result is poor, extraction cycle up to standard length, it is impossible to well solve coal-bed gas problem.Mash gas extraction concentration is on the low side, does not reaches the standard of gas Appropriate application, it has to be directly discharged in air by low concentration gas, and this not only causes the waste of clean energy resource, also air can be caused severe contamination.Therefore, no matter from Gas Disaster preventing and treating, protection environment, or from the angle of the utilization of resources, it is ensured that good sealing quality is the most significant.
For this, multiple method for sealing and equipment are researched and developed both at home and abroad, great many of experiments shows: the solid sealing materials such as cement mortar, due to the factor such as creep effect of inherent defects and coal and rock, are difficult to effectively block the crack passage of borehole circumference after sealing material solidification;The hole sealing device anti-pressure abilities such as polyurethane material are poor, are easily caused boring air leakage failure problem, and relatively costly.In view of the severe situation of current coal market, how to realize safety efficiently sealing of hole high, with low cost, simple, the comprehensive benefit tool in extraction level, mine safety mining and the colliery of improving gas is of great significance.
Utility model content
This utility model is in order to solve the weak point in existing hole sealing technology, there is provided that a kind of sealing of hole effect is obvious, safety is high, easy to operate quickly, sealing of hole with low cost, reusable, and two, the colliery gas that can improve sealing of hole working environment is stifled and middle water seal layer-through drilling hole sealing device.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that two, colliery gas blocks up and middle water seal layer-through drilling hole sealing device, including gas pumping pipe, air injection pipe and water injection pipe arranged in parallel;With one end of gas pumping pipe as the inner, the other end is outer end;The first limited block it is sequentially provided with from inside to outside on gas pumping pipe, first swelling gasbag, second limited block, 3rd limited block, second swelling gasbag and the 4th limited block, air injection pipe ecto-entad sequentially passes through the 4th limited block, second swelling gasbag, 3rd limited block and the second limited block, the inner port of air injection pipe is internal with the first swelling gasbag to be connected, the injecting hole that connect internal with the second swelling gasbag is offered in air injection pipe, water injection pipe ecto-entad sequentially passes through the 4th limited block, second swelling gasbag and the 3rd limited block, the inner port of water injection pipe is between the second limited block and the 3rd limited block;
First limited block, the second limited block, the 3rd limited block and the 4th limited block are all fixed with gas pumping tube outer surface and are tightly connected, 3rd limited block and the 4th limited block are all tightly connected with air injection pipe outer surface, and the 3rd limited block and the 4th limited block are all tightly connected with water injection pipe outer surface.
In air injection pipe, ecto-entad is sequentially provided with the first check valve, the first Pressure gauge and auto-manual relief valve, and auto-manual relief valve is positioned at outside the 4th limited block.
On water injection pipe, ecto-entad is sequentially provided with the second check valve and the second Pressure gauge, and the second Pressure gauge is positioned at outside the 4th limited block.
Use method for sealing of the present utility model, comprise the following steps:
(1), boring to be sealed is cleaned out, and the float coal in hole and landwaste are blown out;
(2), at the outer hole sealing device of installing of boring: work to sealed borehole length according to gas pumping, begin to seal the requirement of degree of depth relevant parameter, determine the first swelling gasbag, correct position in second swelling gasbag implant bore and air injection pipe, the length of water injection pipe, by the first limited block, first swelling gasbag, second limited block, 3rd limited block, second swelling gasbag and the 4th limited block are fixed on the relevant position of gas pumping pipe, it is sent to boring the most together and specifies position, fit on air injection pipe and water injection pipe simultaneously, the first check valve is installed in air injection pipe, first Pressure gauge and auto-manual relief valve, water injection pipe is installed the second check valve and the second Pressure gauge;
(3), by mounted hole sealing device ecto-entad put in boring, until the 4th limited block is also placed in boring;
(4), air injection pipe is connected with underground pressure air system, and sealing to be ensured is good, open the first check valve and auto-manual relief valve utilizes compressed-air system gas injection in the first swelling gasbag and the second swelling gasbag, when the first Pressure gauge show >=0.5MPa after stop gas injection, and close the first check valve and auto-manual relief valve, first swelling gasbag and the second swelling gasbag expand after with the contact internal walls of boring sealing, it is achieved " two gas blocks up ";
(5), water injection pipe is connected with down-hole water system, and sealing to be ensured is good, then the second check valve is opened, utilize down-hole water system to the space water filling between the first swelling gasbag and the second swelling gasbag, water enters borehole fissure under water injection pressure effect, play closure boring formation initial stage leakage path effect, when the second Pressure gauge show >=1MPa after stop to boring in water filling, and close the second check valve, it is achieved " middle water seal ";
(6), after sealing of hole completes, connect gas pumping pipe according to the requirement of sealing of hole operating regulation, carry out gas connection and take out work;
(7), in daily production process, periodically check the first Pressure gauge and the second manometric registration, when pressure registration is less than setting value, utilize underground pressure air system and water system to carry out supplementing air or water to it, to keep the good sealing property of boring;
(8), after boring completes extraction work, by auto-manual feather valve, the first swelling gasbag and the second swelling gasbag are carried out release, water between the first swelling gasbag and the second swelling gasbag flows out boring automatically, is then reclaimed by hole sealing device, in case next time uses.
Using technique scheme, this utility model has following technical effect that
One, with low cost, easily operate, technique, operation are simple, and safety is high, and can realize high-quality sealing of hole;
Two, over time with the continuity in space, due to periodic weighting, the impact of the creep effect etc. of borehole circumference coal and rock, crustal stress is to wearing the pressure in layer hole it may happen that change, boring is caused to deform, now the first swelling gasbag and the second swelling gasbag can deform along with boring deformation, can pass through after pressure exceedes setting maximum pressure, auto-manual feather valve automatically unloading, ensure the integrity of hole sealing device, when pressure is less than when setting minimum, auto-manual feather valve is automatically switched off, and still ensures that the sealing of boring;
Three, air injection pipe and water injection pipe are mounted with the first Pressure gauge and the second Pressure gauge respectively, can be shown that air pressure and the hydraulic pressure of the interior sealing of hole of boring, when pressure registration is less than setting value, underground pressure air system or water system is utilized to carry out supplementing air or water to it, to keep boring good sealing property;
Four, this hole sealing device only needs the compressed-air system of down-hole and water system to its static pressure water filling and gas injection, is not required to purchase water injecting pump and inflator pump, reduces plugging equipment expense.
Five, after boring completes gas pumping work, can manually unload the air in air bag, water flows out boring automatically, to realize the recycling of device, reduces sealing of hole cost;
Six, sealing of hole medium is clean water and air, and material price is cheap, will not pollute coal body, subsoil water and underground air;
Seven, during water body can enter the micro-pore of borehole circumference under pressure, can effective plugging hole week crack;Water injection pipe, air injection pipe, drainage tube are antistatic, fire-retardant hard PVC pipe, it is ensured that the time cutting these pipes in follow-up coal mining, headwork will not produce the potential safety hazards such as electric spark, it is ensured that mine safety production;
In sum, this utility model is during sealing of hole, the sealing material used is cheap water and air, can utilize underground pressure air system and water system that it is supplemented as required, to ensure good sealing quality, after extraction end-of-job, whole device can be with recycling, achieve safety high, easy to operate quickly, with low cost and sealing of hole effect obvious sealing of hole purpose, will not be to coal body, subsoil water and underground air pollute, improve sealing of hole environment, improve mine safety level, be conducive to the popularization of control of coalmine gas new technique.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As it is shown in figure 1, two, colliery of the present utility model gas blocks up and middle water seal layer-through drilling hole sealing device, including gas pumping pipe 1 arranged in parallel, air injection pipe 2 and water injection pipe 3;With one end of gas pumping pipe 1 as the inner, the other end is outer end;The first limited block 4 it is sequentially provided with from inside to outside on gas pumping pipe 1, first swelling gasbag 5, second limited block 6, 3rd limited block 7, second swelling gasbag 8 and the 4th limited block 9, air injection pipe 2 ecto-entad sequentially passes through the 4th limited block 9, second swelling gasbag 8, 3rd limited block 7 and the second limited block 6, the inner port of air injection pipe 2 is internal with the first swelling gasbag 5 to be connected, the injecting hole 10 that connect internal with the second swelling gasbag 8 is offered in air injection pipe 2, water injection pipe 3 ecto-entad sequentially passes through the 4th limited block 9, second swelling gasbag 8 and the 3rd limited block 7, the inner port of water injection pipe 3 is between the second limited block 6 and the 3rd limited block 7;
First limited block the 4, second limited block the 6, the 3rd limited block 7 and the 4th limited block 9 are all fixed with gas pumping pipe 1 outer surface and are tightly connected, 3rd limited block 7 and the 4th limited block 9 are all tightly connected with air injection pipe 2 outer surface, and the 3rd limited block 7 and the 4th limited block 9 are all tightly connected with water injection pipe 3 outer surface.
In air injection pipe 2, ecto-entad is sequentially provided with the first check valve the 11, first Pressure gauge 12 and auto-manual relief valve 13, and auto-manual relief valve 13 is positioned at outside the 4th limited block 9.
On water injection pipe 3, ecto-entad is sequentially provided with the second check valve 14 and the second Pressure gauge 15, and the second Pressure gauge 15 is positioned at outside the 4th limited block 9.
Use method for sealing of the present utility model, comprise the following steps:
(1), will treat that envelope boring 16 is cleaned out, and the float coal in hole and landwaste will be blown out;
(2), hole sealing device is installed outside boring 16: work to sealed borehole length according to gas pumping, begin to seal the requirement of degree of depth relevant parameter, determine the first swelling gasbag 5, correct position in second swelling gasbag 8 implant bore 16 and air injection pipe 2, the length of water injection pipe 3, by the first limited block 4, first swelling gasbag 5, second limited block 6, 3rd limited block 7, second swelling gasbag 8 and the 4th limited block 9 are fixed on the relevant position of gas pumping pipe 1, it is sent to 16 appointment positions of holing the most together, fit on air injection pipe 2 and water injection pipe 3 simultaneously, the first check valve 11 is installed in air injection pipe 2, first Pressure gauge 12 and auto-manual relief valve 13, water injection pipe 3 is installed the second check valve 14 and the second Pressure gauge 15;
(3), by mounted hole sealing device ecto-entad put in boring 16, until the 4th limited block 9 is also placed in boring 16;
(4), air injection pipe 2 is connected with underground pressure air system, and sealing to be ensured is good, open the first check valve 11 and auto-manual relief valve 13 utilizes compressed-air system gas injection in the first swelling gasbag 5 and the second swelling gasbag 8, when the first Pressure gauge 12 show >=0.5MPa after stop gas injection, and close the first check valve 11 and auto-manual relief valve 13, first swelling gasbag 5 and the second swelling gasbag 8 expand after with the contact internal walls of boring 16 sealing, it is achieved " two gas blocks up ";
(5), water injection pipe 3 is connected with down-hole water system, and sealing to be ensured is good, then the second check valve 14 is opened, utilize down-hole water system to the space water filling between the first swelling gasbag 5 and the second swelling gasbag 8, water enter under water injection pressure effect boring 16 cracks, play closure boring 16 formation initial stage leakage paths effect, when the second Pressure gauge 15 show >=1MPa after stop to boring 16 in water filling, and close the second check valve 14, it is achieved " middle water seal ";
(6), after sealing of hole completes, connect gas pumping pipe 1 according to the requirement of sealing of hole operating regulation, carry out gas connection and take out work;
(7), in daily production process, periodically check the first Pressure gauge 12 and registration of the second Pressure gauge 15, when pressure registration is less than setting value, utilize underground pressure air system and water system to carry out supplementing air or water to it, to keep the good sealing property of boring 16;
(8), after boring 16 completes extraction work, by auto-manual feather valve, the first swelling gasbag 5 and the second swelling gasbag 8 are carried out release, water between the first swelling gasbag 5 and the second swelling gasbag 8 flows out boring 16 automatically, is then reclaimed by hole sealing device, in case next time uses.
Above example is only in order to illustrative not limiting the technical solution of the utility model, although this utility model being described in detail with reference to above-described embodiment, it will be understood by those within the art that: still this utility model can be modified or equivalent, without deviating from any modification or partial replacement of spirit and scope of the present utility model, it all should be contained in the middle of right of the present utility model.

Claims (3)

1. two, colliery gas blocks up and middle water seal layer-through drilling hole sealing device, it is characterised in that: include gas pumping pipe, air injection pipe and water injection pipe arranged in parallel;With one end of gas pumping pipe as the inner, the other end is outer end;The first limited block it is sequentially provided with from inside to outside on gas pumping pipe, first swelling gasbag, second limited block, 3rd limited block, second swelling gasbag and the 4th limited block, air injection pipe ecto-entad sequentially passes through the 4th limited block, second swelling gasbag, 3rd limited block and the second limited block, the inner port of air injection pipe is internal with the first swelling gasbag to be connected, the injecting hole that connect internal with the second swelling gasbag is offered in air injection pipe, water injection pipe ecto-entad sequentially passes through the 4th limited block, second swelling gasbag and the 3rd limited block, the inner port of water injection pipe is between the second limited block and the 3rd limited block;
First limited block, the second limited block, the 3rd limited block and the 4th limited block are all fixed with gas pumping tube outer surface and are tightly connected, 3rd limited block and the 4th limited block are all tightly connected with air injection pipe outer surface, and the 3rd limited block and the 4th limited block are all tightly connected with water injection pipe outer surface.
Two, colliery the most according to claim 1 gas blocks up and middle water seal layer-through drilling hole sealing device, it is characterized in that: in air injection pipe, ecto-entad is sequentially provided with the first check valve, the first Pressure gauge and auto-manual relief valve, auto-manual relief valve is positioned at outside the 4th limited block.
Two, colliery the most according to claim 2 gas blocks up and middle water seal layer-through drilling hole sealing device, it is characterised in that: on water injection pipe, ecto-entad is sequentially provided with the second check valve and the second Pressure gauge, and the second Pressure gauge is positioned at outside the 4th limited block.
CN201620377496.9U 2016-04-29 2016-04-29 A layer drilling hole sealing device is worn in gas stifled and middle water seal in two for coal mine Active CN205577925U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105756599A (en) * 2016-04-29 2016-07-13 史买林 Coal mine two-end gas plug and middle water seal layer penetrating drill hole sealing device and method
CN106337668A (en) * 2016-10-26 2017-01-18 西安科技大学 A Dynamic Sealing Structure for Gas Extraction and Drilling Device and the Sealing Method
CN110985106A (en) * 2019-12-10 2020-04-10 西安科技大学 Ultrasonic detection system and detection method for hole sealing quality of underground gas extraction drill hole

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105756599A (en) * 2016-04-29 2016-07-13 史买林 Coal mine two-end gas plug and middle water seal layer penetrating drill hole sealing device and method
CN106337668A (en) * 2016-10-26 2017-01-18 西安科技大学 A Dynamic Sealing Structure for Gas Extraction and Drilling Device and the Sealing Method
CN110985106A (en) * 2019-12-10 2020-04-10 西安科技大学 Ultrasonic detection system and detection method for hole sealing quality of underground gas extraction drill hole
CN110985106B (en) * 2019-12-10 2021-04-20 西安科技大学 Ultrasonic detection system and detection method for hole sealing quality of underground gas extraction drill hole

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20180209

Address after: Room 3, unit 101, building No. 1, Zezhou East Road community freight yard, Jincheng City, Shanxi

Patentee after: Guan Hongxing

Address before: 046500 Shanxi city of Changzhi province Qinyuan County Li Yuan Zhen Qin group

Co-patentee before: Yuan Junwei

Patentee before: Shi Mailin

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190308

Address after: 048000 A block 6, 608 building, 1 building, Fortune Plaza, Jincheng Development Zone, Shanxi.

Patentee after: SHANXI HONGHAI TRADE CO., LTD.

Address before: 048000 Shanxi Jincheng city Zezhou City East Road community yard 1 Building 3 unit 101 room.

Patentee before: Guan Hongxing

TR01 Transfer of patent right