CN202900144U - Hole sealing device for coal bed bedding hole - Google Patents

Hole sealing device for coal bed bedding hole Download PDF

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Publication number
CN202900144U
CN202900144U CN 201220542535 CN201220542535U CN202900144U CN 202900144 U CN202900144 U CN 202900144U CN 201220542535 CN201220542535 CN 201220542535 CN 201220542535 U CN201220542535 U CN 201220542535U CN 202900144 U CN202900144 U CN 202900144U
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CN
China
Prior art keywords
hole
pipe
sealing
hole sealing
sealed opening
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.)
Expired - Lifetime
Application number
CN 201220542535
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Chinese (zh)
Inventor
蔡长辉
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Suzhou Jinding Technology Security Co ltd
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Individual
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Filing date
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Priority to CN 201220542535 priority Critical patent/CN202900144U/en
Application granted granted Critical
Publication of CN202900144U publication Critical patent/CN202900144U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a hole sealing device for a coal bed bedding hole. The hole sealing device for the coal bed bedding hole comprises a pump drainage pipe (1), a front sealed opening (2), a rear sealed opening (5), a grouting pipe (4) and a thick liquid returning pipe (3). The pump drainage pipe (1) is installed on a center shaft of the front sealed opening (2) and the rear sealed opening (5), and the head portion of the pump drainage pipe (1) is provided with an air draft hole. The grouting pipe (4) and the thick liquid returning pipe (3) are installed on the rear sealed opening (5), and the front ends of the grouting pipe (4) and the thick liquid returning pipe (3) are placed between the front sealed opening (2) and the rear sealed opening (5). The grouting pipe (4) and the thick liquid returning pipe (3) are both provided with switching valves (6). By means of the hole sealing device for the coal bed bedding hole, not only can effective hole sealing length be ensured during downhole hole sealing to achieve sealed hole sealing quality, but also the extraction concentration of gas can be improved significantly.

Description

A kind of for concordant hole, coal seam hole sealing device
Technical field
The utility model relates to a kind of for concordant hole, coal seam hole sealing device, is mainly used in the device to the pre-gas pumping of concordant drilling and sealing.
Background technology
The concordant pre-gas pumping of holing is used widely in most mining areas as a regional protrusion-dispelling technology, has has effectively prevented and treated the generation of coal and gas burst accident.Yet, at the scene in the application process, because boring is constructed in the coal seam, coal body is relatively soft around the boring, and the cranny development degree is higher, simultaneously because the not high concentration of concordant drilling gas extraction that caused of sealing quality is low, the poor effect of extraction, and then do not reach the purpose of regional protrusion-dispelling.
" control coal and Gas Outburst regulation " the 48 clear, pre-gas pumping borehole sealing must be tight.The sealed borehole length of layer-through drilling must not be less than 5m, and the sealing of hole segment length of concordant boring must not be less than 8m.The sealed borehole length of boring is brought up to 8m by the 6m of " control coal and Gas Outburst detailed rules and regulations " regulation, and the sealing quality of boring that hence one can see that is to the importance of gas pumping.
Guarantee effective sealed borehole length, realize airtight sealing quality, necessary a kind of sealing of hole is effective, and sealing is strong, the hole sealing device that extraction concentration is high, but have no report in the prior art.
Summary of the invention
In order to solve the problems of the prior art, the purpose of this utility model provides that a kind of sealing of hole is effective, and sealing is strong, and extraction concentration is high is used for concordant hole, coal seam hole sealing device.
For achieving the above object, the technological means that the utility model adopts is: a kind of for concordant hole, coal seam hole sealing device, comprise exhaust pipe, front sealing, rear sealing, Grouting Pipe, return pipe, wherein exhaust pipe is installed on the axis of front sealing and rear sealing, and the head of described exhaust pipe arranges the exhausting hole; Described Grouting Pipe and return pipe are installed in the rear sealing, and the front end of two pipes is provided with switch valve in Grouting Pipe and return pipe between front sealing and rear sealing.
Operating principle: the two stifled pressures that this hole sealing device adopts, can be according to actual sealing of hole needs, set the distance between the locking device at exhaust pipe two ends, exhaust pipe, Grouting Pipe, return pipe is laid the locking device that puts in place simultaneously the exhaust pipe two ends and is started, allow and form behind the confined space two place's valve opens with hole sealing device in the hole, slowly inject hole sealing agent with body by grouting port, when the slurry phenomenon appears returning in pulp returning port, illustrate that hole sealing agent has injected substantial, this moment is with the pulp returning port valve closing, grouting pump 2MPa with pressure in sealing of hole slurries pressure hole wall crack, realizes adequate closure.
The beneficial effects of the utility model are: can guarantee the effective sealed borehole length when the sealing of hole of down-hole, realize airtight sealing quality, can improve greatly again the extraction concentration of gas.
Description of drawings
Below in conjunction with accompanying drawing the technical solution of the utility model is described.
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, exhaust pipe, 2, front sealing, 3, return pipe, 4, Grouting Pipe, 5, rear sealing, 6, switch valve, 7, the coal seam.
The specific embodiment
As shown in Figure 1 a kind of comprises exhaust pipe 1, front sealing 2, rear sealing 5, Grouting Pipe 4, return pipe 3 for concordant hole, coal seam hole sealing device, and wherein exhaust pipe 1 is installed on the axis of front sealing 2 and rear sealing 5, and the head of described exhaust pipe 1 arranges the exhausting hole; Described Grouting Pipe 4 and return pipe 3 are installed in the rear sealing 5, and the front end of two pipes is provided with switch valve 6 in Grouting Pipe 4 and return pipe 3 between front sealing 2 and rear sealing 5.
Sealed borehole length can be according to actual sealing of hole needs, set the distance between the locking device at exhaust pipe 1 two ends at coal seam 7 mesopores, and exhaust pipe 1, Grouting Pipe 4, return pipe 3 are laid and put in place.
Grouting Pipe 4 enters at the boring bottommost, is about about 2 meters, adds valve; Return pipe 3 is placed in boring top according to the boring actual conditions, and 3 mouthfuls of return pipes are placed on the boring highest point, is no less than 1 meter pipe vertically upward, middle mounted valve 6 in the outer connection of boring.
The locking device at exhaust pipe 1 two ends is started, allow and form confined space in the hole, two place's valve opens with hole sealing device, slowly inject hole sealing agent with body by grouting port, when the slurry phenomenon appears returning in pulp returning port, illustrate that hole sealing agent has injected substantial, this moment is with the pulp returning port valve closing, grouting pump 2MPa with pressure in sealing of hole slurries pressure hole wall crack, realizes adequate closure.Make hole sealing agent under 2MPa pressure, keep the regular hour, close the slip casting valve, remove grouting pump.Clean grouting pump.

Claims (1)

1. one kind is used for concordant hole, coal seam hole sealing device, it is characterized in that: comprise exhaust pipe (1), front sealing (2), rear sealing (5), Grouting Pipe (4), return pipe (3), wherein exhaust pipe (1) is installed on the axis of front sealing (2) and rear sealing (5), and the head of described exhaust pipe (1) arranges the exhausting hole; Described Grouting Pipe (4) and return pipe (3) are installed in the rear sealing (5), and the front end of two pipes is positioned between front sealing (2) and the rear sealing (5), is provided with switch valve (6) in Grouting Pipe (4) and return pipe (3).
CN 201220542535 2012-10-23 2012-10-23 Hole sealing device for coal bed bedding hole Expired - Lifetime CN202900144U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220542535 CN202900144U (en) 2012-10-23 2012-10-23 Hole sealing device for coal bed bedding hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220542535 CN202900144U (en) 2012-10-23 2012-10-23 Hole sealing device for coal bed bedding hole

Publications (1)

Publication Number Publication Date
CN202900144U true CN202900144U (en) 2013-04-24

Family

ID=48120827

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220542535 Expired - Lifetime CN202900144U (en) 2012-10-23 2012-10-23 Hole sealing device for coal bed bedding hole

Country Status (1)

Country Link
CN (1) CN202900144U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696800A (en) * 2013-12-18 2014-04-02 中国矿业大学 Drilling, cutting, pressing and pumping method
CN103993902A (en) * 2014-05-22 2014-08-20 中国矿业大学 Gas extraction drilled hole two-step grouting hole sealing method
CN103742098B (en) * 2013-12-30 2017-03-01 平顶山天安煤业股份有限公司 A kind of colliery Di Chou lane layer-through drilling return slag hole sealing device and method
CN107905762A (en) * 2017-10-11 2018-04-13 山东科技大学 A kind of solid powder band pressure grouting dynamic seal hole method
WO2019105161A1 (en) * 2017-11-28 2019-06-06 中国矿业大学 Bedding borehole-based gas extraction method capable of avoiding air leakage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696800A (en) * 2013-12-18 2014-04-02 中国矿业大学 Drilling, cutting, pressing and pumping method
CN103696800B (en) * 2013-12-18 2016-03-23 中国矿业大学 A kind of brill cuts pressure and takes out method
CN103742098B (en) * 2013-12-30 2017-03-01 平顶山天安煤业股份有限公司 A kind of colliery Di Chou lane layer-through drilling return slag hole sealing device and method
CN103993902A (en) * 2014-05-22 2014-08-20 中国矿业大学 Gas extraction drilled hole two-step grouting hole sealing method
CN107905762A (en) * 2017-10-11 2018-04-13 山东科技大学 A kind of solid powder band pressure grouting dynamic seal hole method
WO2019105161A1 (en) * 2017-11-28 2019-06-06 中国矿业大学 Bedding borehole-based gas extraction method capable of avoiding air leakage

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd.

Assignor: Cai Changhui

Contract record no.: 2013340000119

Denomination of utility model: Hole sealing device for coal bed bedding hole

Granted publication date: 20130424

License type: Exclusive License

Record date: 20130723

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
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Owner name: SUZHOU JINDING TECHNOLOGY SECURITY CO., LTD.

Free format text: FORMER OWNER: CAI CHANGHUI

Effective date: 20150225

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Effective date of registration: 20150225

Address after: 234000 north side of Jinhe Road, west of Jinhai Road, Suzhou Development Zone, Anhui

Patentee after: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd.

Address before: 234000 road in Anhui Province, Suzhou City Yongqiao District of Suzhou city science and Technology Bureau five floor

Patentee before: Cai Changhui

EC01 Cancellation of recordation of patent licensing contract

Assignee: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd.

Assignor: Cai Changhui

Contract record no.: 2013340000119

Date of cancellation: 20150202

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Denomination of utility model: Hole sealing device for coal bed bedding hole

Effective date of registration: 20191219

Granted publication date: 20130424

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Pledgor: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd.

Registration number: Y2019980001142

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Date of cancellation: 20210329

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Pledgee: Suzhou financing Company limited by guarantee

Pledgor: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd.

Registration number: Y2019980001142

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A hole sealing device for coal seam bedding hole

Effective date of registration: 20210421

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Pledgee: Suzhou financing Company limited by guarantee

Pledgor: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd.

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Registration number: Y2021980002838

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