CN206190262U - Slip casting hole sealing device is pressed in downthehole prefabricated pipeline area of gas drainage drilling - Google Patents
Slip casting hole sealing device is pressed in downthehole prefabricated pipeline area of gas drainage drilling Download PDFInfo
- Publication number
- CN206190262U CN206190262U CN201621150612.XU CN201621150612U CN206190262U CN 206190262 U CN206190262 U CN 206190262U CN 201621150612 U CN201621150612 U CN 201621150612U CN 206190262 U CN206190262 U CN 206190262U
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- double
- sealing device
- expansion type
- hole sealing
- pipe
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Abstract
The utility model discloses a slip casting hole sealing device is pressed in downthehole prefabricated pipeline area of gas drainage drilling at first prepares double -deck ring -shaped bag, and inner sealed, the outer end opening of annular chamber is connected slip casting and is connected, then will annotate the expanding pipe and insert double -deck ring -shaped bag subcenter, to insert drilling together inside with annotating the expanding pipe with double -deck ring -shaped bag again, pours into the water under high pressure into in the expanding pipe and make its inflation to annotating, again to injected water mud in the annular chamber of double -deck ring -shaped bag, wait for that the grout solidifies the back, take out after will annotating expanding pipe drainage pressure release. The utility model discloses utilize the center to annotate the expanding pipe ingeniously and support as the centre form of prefabricated cement pipe, operate very simple and convenient, the low cost. Cement pipe intensity is big, and compressive strength is that present PVC takes out three times that put the pipe.
Description
Technical field
The utility model is related to the hole sealing technology in technical field of coal mine, and in particular to pre- in a kind of mash gas pumping drilling hole
Tubing giving sufficient strength injection hole sealing device with pressure.
Background technology
With the increase of mining depth, coal-bed gas pressure and content increase, and ature of coal is soft, and gas permeability of coal seam is low, coal seam
Gas is difficult the extraction before adopting, and coal and gas prominent danger is on the rise, and China has turned into the product for protruding most serious in the world
Coal country.In order to eliminate the outburst hazard in coal seam before adopting, make that high methane is projecting coal bed to be converted into present low gas coal seam, need to use
Regional gas pumping method.
The mine that China is threatened by Gas Disaster generally prevents Gas Disaster by the way of Gas pre-drainage.Colliery
Dust hazard problem in production is still severe, and the coal worker's pneumoconiosis disease incidence of disease is higher, and coal-dust explosion happens occasionally, and Gas Outburst is
A kind of serious natural calamity of underground coal mine, the safety in production in serious restriction colliery.It is production of mining to coal seam or coal-bed flooding
During prevent a kind of active and effective measure of stope coal dust.Traditional short-cut method is directly to be sealed using cement mortar
Hole, then the sealing of hole sections bottom timber wedge or cotton yarn of gas drainage pipe insertion drilling is blocked cementing.Treat that Behavior of Hardened Cement Paste is starched
Just can be evacuated after solidification.Expend that the time is long with the water filling of cement mortar sealing of hole, sealing effectiveness is not good enough, and it is indifferent to bear air pressure, and
And expend that material is more, inconvenient operation.
Utility model content
For defect and problem that existing coal mine gas drainage hole sealing technology is present, the utility model provides a kind of gas and takes out
Prefabricated pipeline injection hole sealing device with pressure in borehole hole.
The utility model solves the scheme that its technical problem used：Prefabricated pipeline band in a kind of mash gas pumping drilling hole
Pressure grouting hole sealing device, including double-deck annular sack, note expansion type tube and hard rod member, wherein, the double-deck ring bag attached bag
The different tube stock of inside and outside two-layer diameter is included, inside and outside layer sack is set in together to form annular chamber, the inner sealing of annular chamber,
Outer end opening simultaneously connects filling adaptor；The inner closing of note expansion type tube, outer end opening simultaneously connect water filling joint；Note expanding pipe
Together with the inner of the annular sack of inner and bilayer of son is temporarily fixed at.
The note expansion type tube outer surface is compounded with wearing layer.It is combined on the inside or outside of the tube wall of note expansion type tube and is drawn
Silk, the inner of wire drawing is fixed temporarily by rope or adhesive tape with double-deck annular sack.The hard rod member is that multistage docks combination
Interconnection system.
The filling adaptor is located at the side or port of double-deck annular sack.The water filling joint is located at note expansion type tube
Side or port.
The beneficial effects of the utility model：
The utility model provides a kind of method that pipe of cement is directly precast in coal bed drilling, using double-deck annular sack
Ectonexine as pre-cast concrete pipe interior external mold, dexterously by the use of center note expansion type tube as pre-cast concrete pipe internal model branch
Can flexibly be taken out after support, is supported by the use of drill hole inner wall as the external mold of pre-cast concrete pipe, and note expansion type tube discharges water, the method
Operation is very easy, low cost.
The utility model is used to replace existing PVC releasing pipes.Manufacturing speed is fast and effect is good.Pipe of cement intensity is big, resists
Compressive Strength is three times of existing PVC releasing pipes.
Double-deck annular sack and pipe of cement one are used as releasing pipe in the utility model, and sealing of hole effect is good, safety can
By, strong applicability.
Brief description of the drawings
Fig. 1 is the bilayer annular sack schematic diagram that the utility model is used；
Fig. 2 is the note expansion type tube schematic diagram that the utility model is used；
Fig. 3 is the hard rod schematic representation that the utility model is used；
Fig. 4 is that double-deck annular sack and note expansion type tube are pushed into schematic diagram together in the utility model；
Fig. 5 is the utility model note expansion type tube water-filling swelling state schematic diagram.
Label in figure：1 is the outer layer of double-deck annular sack, and 2 is the internal layer of double-deck annular sack, and 3 is double-deck annular sack
Annular chamber, 4 is the sealed end of double-deck annular sack, and 5 is note expansion type tube, and 6 is the sealed end of note expansion type tube, and 7 is adhesion
Band, 8 is water filling joint, and 9 is filling adaptor, and 10 is double-deck ring bag subcenter passage, and 11 is hard rod member, and 12 is note expanding pipe
Sub- inner chamber.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1：Prefabricated pipeline injection hole sealing device with pressure includes double-deck annular sack, notes swollen in mash gas pumping drilling hole
Formula pipe and hard rod member.
Referring to Fig. 1, double-deck ring bag attached bag includes the different tube stock of inside and outside two-layer diameter, and inside and outside layer sack is sleeved on
Annular chamber is formed together, and the inner sealing of annular chamber, outer end opening simultaneously connect filling adaptor.
Referring to Fig. 2, the inner closing of note expansion type tube, outer end opening simultaneously connect water filling joint；Note expansion type tube it is inner with
The inner of double-deck annular sack is temporarily fixed at together.
Referring to Fig. 3, hard rod member is multistage docking combination interconnection system.
Referring to Fig. 4, filling adaptor is located at the side of double-deck annular sack.The water filling joint is located at the end of note expansion type tube
Mouthful.
Furthermore it is also possible to be combined wire drawing on the inside or outside of the tube wall of note expansion type tube, the inner of wire drawing by rope or
Adhesive tape is fixed temporarily with double-deck annular sack.
The present embodiment method for sealing is comprised the following steps, and following steps have no sequencing difference.
The first step：Prepare double-deck annular sack.Referring to Fig. 1, the outer layer 1 of double-deck annular sack with diameter greater than double-deck annular
The internal layer 2 of sack, the inner sealing of the annular chamber 3 of double-deck annular sack, the outer end opening of the annular chamber 3 of double-deck annular sack is simultaneously
Connection filling adaptor.Double-deck annular sack is substantially flexible die, for injecting cement mortar not for the purpose of spillage.
Second step：Note expansion type tube 5 is inserted into double-deck ring bag subcenter, and is alignd.Referring to Fig. 2, in note expansion type tube
End seal is closed, outer end opening and connect water filling joint.Inner the inner with double-deck annular sack of note expansion type tube 5 is temporarily fixed at
Together.For example, being linked together by adhesive tape, but can separate it by firmly pullling.
3rd step：In coal bed drilling, 113 millimeters, depth 15-20 meters of bore diameter.Will be double-deck annular using hard rod member
After sack inserts bore inner together with note expansion type tube 5, hard rod member is taken out.Referring to Fig. 3 and Fig. 4, hard rod member can be adopted
Combination interconnection system is docked with multistage.
4th step：It is expanded to water under high pressure is injected in note expansion type tube 5.Referring to Fig. 5, diameter expansion is noted to 100 millimeters
Expansion type tube 5 supports the internal layer 2 of double-deck annular sack, the outer layer 1 of the double-deck annular sack of drill hole inner wall support.So as to double-deck annular
The annular chamber 3 of sack becomes annular die cavity.
5th step：Cement mortar, setting time 30 minutes are injected in annular chamber 3 to double-deck annular sack.Wait cement mortar
After solidification, will be taken out after the note draining pressure release of expansion type tube 5, the annular cement to be formed that thes cement solidifies in double-deck annular sack
Pipe is combined closely with drill hole inner wall, 100 millimeters of cement ips.
Wearing layer can be compounded with note expansion type tube 5 outer surface.And, can be on the inside of the tube wall of note expansion type tube 5
Or the compound wire drawing in outside, the inner of wire drawing is fixed temporarily by rope or adhesive tape with double-deck annular sack.
Embodiment 2：On the basis of embodiment 1, filling adaptor is located at the side of double-deck annular sack.The water filling joint
Positioned at the side of note expansion type tube.
Claims (6)
1. prefabricated pipeline injection hole sealing device with pressure in a kind of mash gas pumping drilling hole, it is characterized in that：Including double-deck annular sack,
Note expansion type tube and hard rod member, wherein, the double-deck ring bag attached bag includes the different tube stock of inside and outside two-layer diameter, interior,
Outer bag sub-set is fitted together to form annular chamber, and the inner sealing of annular chamber, outer end opening simultaneously connect filling adaptor；The note expanding
The inner closing of pipe, outer end opening simultaneously connect water filling joint；The inner of the annular sack of inner and bilayer of note expansion type tube is interim
It is fixed together.
2. prefabricated pipeline injection hole sealing device with pressure in mash gas pumping drilling hole according to claim 1, it is characterized in that：Institute
State note expansion type tube outer surface and be compounded with wearing layer.
3. prefabricated pipeline injection hole sealing device with pressure in mash gas pumping drilling hole according to claim 1, it is characterized in that：
The compound wire drawing in tube wall inner or outer side of expansion type tube is noted, the inner of wire drawing is interim with double-deck annular sack by rope or adhesive tape
It is fixed.
4. prefabricated pipeline injection hole sealing device with pressure in mash gas pumping drilling hole according to claim 1, it is characterized in that：Institute
It is multistage docking combination interconnection system to state hard rod member.
5. prefabricated pipeline injection hole sealing device with pressure in mash gas pumping drilling hole according to claim 1, it is characterized in that：Institute
State side or port that filling adaptor is located at double-deck annular sack.
6. prefabricated pipeline injection hole sealing device with pressure in mash gas pumping drilling hole according to claim 1, it is characterized in that：Institute
State side or port that water filling joint is located at note expansion type tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621150612.XU CN206190262U (en) | 2016-10-24 | 2016-10-24 | Slip casting hole sealing device is pressed in downthehole prefabricated pipeline area of gas drainage drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621150612.XU CN206190262U (en) | 2016-10-24 | 2016-10-24 | Slip casting hole sealing device is pressed in downthehole prefabricated pipeline area of gas drainage drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190262U true CN206190262U (en) | 2017-05-24 |
Family
ID=58731875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621150612.XU Withdrawn - After Issue CN206190262U (en) | 2016-10-24 | 2016-10-24 | Slip casting hole sealing device is pressed in downthehole prefabricated pipeline area of gas drainage drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437611A (en) * | 2016-10-24 | 2017-02-22 | 河南理工大学 | Method and device for prefabricated pipeline pressurized grouting hole sealing inside gas extraction drill hole |
| CN111561291A (en) * | 2020-05-06 | 2020-08-21 | 太原理工大学 | Double-layer extrusion type hole sealing device and method for gas extraction drill hole |
-
2016
- 2016-10-24 CN CN201621150612.XU patent/CN206190262U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437611A (en) * | 2016-10-24 | 2017-02-22 | 河南理工大学 | Method and device for prefabricated pipeline pressurized grouting hole sealing inside gas extraction drill hole |
| CN106437611B (en) * | 2016-10-24 | 2018-12-04 | 河南理工大学 | Prefabricated pipeline grouting with pressure method for sealing and device in mash gas pumping drilling hole |
| CN111561291A (en) * | 2020-05-06 | 2020-08-21 | 太原理工大学 | Double-layer extrusion type hole sealing device and method for gas extraction drill hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170524 Effective date of abandoning: 20181204 |
|
| AV01 | Patent right actively abandoned |