CN205977170U - Automatic sealing device that fills in coal seam developments crack - Google Patents

Automatic sealing device that fills in coal seam developments crack Download PDF

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Publication number
CN205977170U
CN205977170U CN201620717472.3U CN201620717472U CN205977170U CN 205977170 U CN205977170 U CN 205977170U CN 201620717472 U CN201620717472 U CN 201620717472U CN 205977170 U CN205977170 U CN 205977170U
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CN
China
Prior art keywords
sealing
dynamic
coal seam
hole
dynamic sealing
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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 - Fee Related
Application number
CN201620717472.3U
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Chinese (zh)
Inventor
娄振
魏国营
贾天让
闫江伟
冯阵东
宋占全
慕文俊
郭敬远
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Henan University of Technology
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Henan University of Technology
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Priority to CN201620717472.3U priority Critical patent/CN205977170U/en
Application granted granted Critical
Publication of CN205977170U publication Critical patent/CN205977170U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an automatic sealing device that fills in coal seam developments crack, including conventional sealing system and dynamic seal system. " two stifled one annotate " was pressed in area that conventional sealing system mainly adopted the hole sealing degree of depth be 5~12m hole sealing technique being adopted drilling and goes on once sealing taking out, the dynamic seal system mainly adopts to be located and takes out a plurality of dynamic seal holes of adopting around the drilling and carry out a lot of dynamic seal. It is used for carrying out real -time supervision to gas density to connect the gas density monitor on the gas extraction pipe mouth of pipe in the conventional sealing system, connecting thick liquid hydraulic pressure force monitor on the dynamic seal drilling grouting pipe mouth of pipe in the dynamic seal system and monitoring the intraductal thick liquid hydraulic pressure force of slip casting, each microprocessor carries out the analysis respectively to the data of each monitor transmission, sends opening of corresponding command control grouting pump and stops. The utility model discloses can carry out the automation to the crack that the coal seam developments are grown and fill, it is short to have the hole sealing degree of depth, and the high efficiency is taken out and is adopted chronicly and take out the characteristic that is showing of adopting the gas gauge height.

Description

A kind of dynamic crack in coal seam automatic filling sealing device
Technical field
This utility model belongs to well work drilling gas extraction technical field, and the dynamic crack in more particularly, to a kind of coal seam is filled automatically Packing seal apparatus.
Background technology
Coal mine gas drainage is preventing and treating mine gas disaster and the effective measures using coal bed gas resource, but China's well work Gas extraction concentration is not totally high, and it is fast to decay.The quality of gas pumping effect is had a strong impact on by sealing quality, particularly exists In coal road, performance becomes apparent from.Domestic existing hole sealing technology typically only accomplishes one-step pore-creating or secondary reparation thus often extraction Early stage is respond well, and different degrees of leakage problem in the later stage, shortens the hole pumping and mining life-span.Take out to reach high concentration Adopt, most of mining area extends hole sealing depth, this adds increased sealing of hole difficulty and cost, in addition, mostly boring is to be grasped by artificial Make to realize sealing.So both increased technical operation difficulty, consume a large amount of manpower and materials again.
Content of the invention
This utility model content mainly solves the problems, such as existing slip casting sealing technology, provides a kind of coal seam dynamic crack Automatic filling sealing device.Can cracks in coal seam be realized dynamically continuously sealing, realize the efficient extraction of drilling gas.
This utility model be employed technical scheme comprise that:A kind of dynamic crack in coal seam automatic filling sealing device includes routine Sealing system and dynamic sealing system, the technique of conventional hermetic system:Extraction borehole in conventional hermetic system carries out gas and takes out Adopt, hole sealing depth and sealing of hole segment length extraction borehole, according to being pre-designed, are used polyurethane and baffle plate as plug.
Dynamic sealing system technique:Some length of constructing around extraction borehole are less than the dynamic of extraction borehole hole sealing depth Fracture filling liquid, according to presetting, is passed through Grouting Pipe pressure using grouting pump by the length of sealing hole, hole sealing depth and closed chamber Enter the dynamic sealing interior that in the hole is reserved, and crack around is diffused into by dynamic sealing room.It is dense that the extraction borehole mouth of pipe connects gas Degree monitor, is monitored to gas extraction concentration, and gas concentration monitoring device passes through signal transmssion line and gas density microprocessor Device connects;The liquid injection pipe mouth of pipe in dynamic sealing hole connects slurry pressure monitor, and slurry pressure is monitored, and slurry pressure is monitored Device is connected with slurry pressure microprocessor by signal transmssion line, and microprocessor passes through to receive, analyzes and sending signal control note The start and stop of stock pump.
Described conventional hermetic system hole sealing depth is 5 ~ 12m, and sealing of hole segment length is 3 ~ 8m.
Described plug is made up of the baffle plate of polyurethane and both sides, and baffle plate makes polyurethane expanded radially.
The dynamic sealing hole aperture of described dynamic sealing system be 30 ~ 130mm, length be 3 ~ 11m, hole sealing depth be 2 ~ 10m, dynamic sealing room length is 0.5 ~ 2m.
The liquid injection pipe caliber in the dynamic sealing hole of described dynamic sealing system is 8 ~ 50mm.
The distance of described dynamic sealing pitch-row extraction borehole is 0.3 ~ 0.8m.
For the extraction coal body of different Coal Pore Structures, different bore arrangement modes are taken in dynamic sealing hole.
The beneficial effects of the utility model are by apparatus of the present invention and can to enter Mobile state filling to cracks in coal seam, have Hole sealing technology is short for drilling and sealing depth ratio tradition, high-efficiency and continuous extraction time length and the high marked feature of mash gas extraction amount, extraction Effect and economic benefit are with the obvious advantage.
Brief description
Fig. 1 is structural representation of the present utility model.In figure:1- conventional hermetic system, 2- dynamic sealing system, 3- cement Serosity Grouting Pipe, 4- cement grout slurry recovering tube, 5- drainage tube, 6- crack filling liquid liquid injection pipe, 7- dynamic sealing room, 8- gas is dense Degree monitor, 9- gas density is processor, 10- slurry pressure monitor, 11- slurry pressure microprocessor, 12- grouting pump, 13- polyurethane, 14- baffle plate, 15- extraction borehole, 16- dynamic sealing is holed, 17- signal transmssion line.
Fig. 2 is deformation coal boring arrangement schematic diagram of the present utility model.In figure:15- extraction borehole, 16- dynamic sealing is bored Hole.
Fig. 3 is primary structure coal borer hole of the present utility model arrangement schematic diagram.In figure:15- extraction borehole, 16- is dynamically close Envelope boring.
Specific embodiment
Fig. 1 is the structural representation of device of the present utility model.Described conventional hermetic system 1 is used for supporting and closure is taken out Borehole simultaneously blocks the crack that formation is excavated in boring, and extraction borehole 16 is carried out gas pumping, made using polyurethane 13 and baffle plate 14 For plug, hole sealing depth is 5 ~ 12m, and sealing of hole segment length is 3 ~ 8m, passes through cement grout Grouting Pipe 3 by cement using grouting pump 12 Mortar injects sealing of hole sections, treats that cement grout slurry recovering tube 4 returns slurry and closes cement grout slurry recovering tube 4, carries out secondary band pressure grouting, until Manometric pressure reaches predetermined threshold, completes conventional hermetic.
Described dynamic sealing system 2 is used for the crack that continuous filling roadway excavation coal mass relief produces, in extraction borehole The some dynamic sealings boring 16 of 15 surroundings constructions, the length of wherein dynamic sealing boring 16 is 3 ~ 11m, hole sealing depth is 2 ~ 10m, the length of dynamic sealing room 7 is 0.5 ~ 2m.Using grouting pump 12, fracture filling liquid is pressed by crack filling liquid liquid injection pipe 6 Enter in the dynamic sealing room 7 that in the hole is reserved.Drainage tube 5 mouth of pipe connects gas concentration monitoring device 8, and gas concentration monitoring device 8 passes through letter Number transmission line 17 is connected with gas density microprocessor 9;Crack filling liquid liquid injection pipe 6 mouth of pipe of dynamic sealing boring 16 connects serosity Pressure monitor 10, slurry pressure monitor 10 is connected with slurry pressure microprocessor 11 by signal transmssion line 17.Work as gas Concentration monitoring device 8 monitors that gas density is less than predetermined threshold, and signal is delivered to the micro- place of gas density by signal transmssion line 18 Reason device 9, gas density microprocessor 9 sends and starts grouting pump instruction, and filling liquid injection dynamic sealing in crack is bored by grouting pump 12 The dynamic sealing room 7 in hole 16;When the slurry pressure that slurry pressure sensor 10 monitors is higher than predetermined threshold, signal passes through signal Transmission line 18 is sent to slurry pressure microprocessor 11, and slurry pressure microprocessor 11 sends and stops grouting pump instruction, grouting pump 12 stopping fluid injections, such iterative cycles, complete dynamic sealing.
Fig. 2 is deformation coal of the present utility model boring arrangement schematic diagram, for Coal Pore Structure for deformation coal gas pumping Place, carries out dynamic sealing using boring arrangement as depicted, and two dynamic sealing holes 16 are located at extraction borehole 15 respectively Upper and lower, is 0.3 ~ 0.8m apart from the distance of extraction borehole 15.
Fig. 3 is primary structure coal borer hole of the present utility model arrangement schematic diagram, is primary structure coal for Coal Pore Structure Gas pumping place, carries out dynamic sealing using boring arrangement as depicted, and four dynamic sealing holes 16 are located at extraction respectively The upper left of boring 15, lower-left, upper right, lower right, are 0.3 ~ 0.8m apart from the distance of extraction borehole 15.

Claims (5)

1. a kind of coal seam dynamic crack automatic filling sealing device is it is characterised in that mainly include conventional hermetic system and dynamic Sealing system, in described conventional hermetic system, extraction borehole carries out gas pumping, and described dynamic sealing system mainly adopts position Some dynamic sealing holes around extraction borehole carry out multiple dynamic sealing;Gas pumping pipe in described conventional hermetic system Gas concentration monitoring device is connected on the mouth of pipe be used for carrying out real-time monitoring to gas density, dynamically close in described dynamic sealing system Connect slurry pressure monitor on the envelope bored grouting pipe mouth of pipe slurry pressure in Grouting Pipe is monitored, each microprocessor is to each The data of monitor transmission is analyzed respectively, sends the start and stop that command adapted thereto controls grouting pump.
2. according to claim 1 a kind of coal seam dynamic crack automatic filling sealing device it is characterised in that dynamic sealing system The aperture in the dynamic sealing hole of system is 30 ~ 130mm, and length is 3 ~ 11m, and hole sealing depth is 2 ~ 10m, and dynamic sealing room length is 0.5~2m.
3. according to claim 1 a kind of coal seam dynamic crack automatic filling sealing device it is characterised in that dynamic sealing hole Distance away from extraction borehole is 0.3 ~ 0.8m.
4. according to claim 1 a kind of coal seam dynamic crack automatic filling sealing device it is characterised in that poly- ammonia in plug The both sides of ester are provided with baffle plate, make polyurethane expanded radially.
5. according to claim 1 a kind of coal seam dynamic crack automatic filling sealing device it is characterised in that for different coals The extraction coal body of body structure, different bore arrangement modes are taken in dynamic sealing hole.
CN201620717472.3U 2016-07-08 2016-07-08 Automatic sealing device that fills in coal seam developments crack Expired - Fee Related CN205977170U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620717472.3U CN205977170U (en) 2016-07-08 2016-07-08 Automatic sealing device that fills in coal seam developments crack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620717472.3U CN205977170U (en) 2016-07-08 2016-07-08 Automatic sealing device that fills in coal seam developments crack

Publications (1)

Publication Number Publication Date
CN205977170U true CN205977170U (en) 2017-02-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620717472.3U Expired - Fee Related CN205977170U (en) 2016-07-08 2016-07-08 Automatic sealing device that fills in coal seam developments crack

Country Status (1)

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CN (1) CN205977170U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723414A (en) * 2019-01-29 2019-05-07 河南理工大学 A kind of critical water injection pressure calculation method of oil-gas anticlinal deposits crack elimination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723414A (en) * 2019-01-29 2019-05-07 河南理工大学 A kind of critical water injection pressure calculation method of oil-gas anticlinal deposits crack elimination

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170222

Termination date: 20170708