CN208040348U - Slip casting bag pocket type hole packer - Google Patents
Slip casting bag pocket type hole packer Download PDFInfo
- Publication number
- CN208040348U CN208040348U CN201820474347.3U CN201820474347U CN208040348U CN 208040348 U CN208040348 U CN 208040348U CN 201820474347 U CN201820474347 U CN 201820474347U CN 208040348 U CN208040348 U CN 208040348U
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- Prior art keywords
- gas drainage
- drainage pipe
- pipe
- slip casting
- hole
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Abstract
The utility model discloses slip casting bag pocket type hole packers, including gas drainage pipe and Grouting Pipe, the end of gas drainage pipe and Grouting Pipe is cased with cloth pouch, and one section on gas drainage pipe close to cloth pouch is equipped with multiple apertures, and the outside of narrow meshed gas drainage pipe is equipped with the strainer for being used for drainage.The Grouting Pipe penetrates in cloth pouch without being pierced by.Compared with prior art, the utility model solves the problems, such as that many holes can be formed after evaporation to cause sealing of hole not tight due to the moisture content in cement in the prior art have the advantages that simple in structure, sealing of hole effect is good, safe and reliable, highly practical, efficient.
Description
Technical field
The utility model is related to a kind of hole sealing devices, and in particular to a kind of slip casting bag pocket type for coal mine gas extraction seals
Hole device.
Background technology
Coal mine takes extraction measure, and the gas drainage under suction that will be enriched in coal seam comes out, and is to release gas accident to threaten, ensure
The maximally efficient measure of safety of coal mines.Gas pumping is the essential measure and main path of control of coalmine gas, can make gas
It changes harmful to treasure（Can be used for generating electricity, supply Gas Company, motor vehicle fuel etc.）, for safety of coal mines, environmental protection and the utilization of resources
All have important meaning.With the increase of pit mining depth, coal-bed gas pressure, gas bearing capacity also gradually increase therewith,
In order to ensure mine safety production, coal bed gas extraction is usually carried out, and sealing quality plays crucial work to coal bed gas extraction
With.
Existing down-hole drilling hole sealing technology generally use bag type paste injection hole sealing, its working principle is that：By Grouting Pipe with
Grouting pump is connected, and because the pressure of grouting pump enters in Grouting Pipe and expansion pouch, expansion pouch expands rapidly sealing of hole cement, will be swollen
The outer wall of swollen pouch is mutually sealed with coal hole；When pressure reaches certain value；Explosive valve explosion, between gas drainage pipe and coal mine wall
Full of cement；Sealing of hole cement blocks coal hole and intermediate fissure zone after moisture evaporation, and connecting gas by gas drainage pipe takes out
Pipeline is put to draw out methane.However, the water in cement between gas drainage pipe and coal mine wall is after evaporation, dry cement
In can form many holes, these holes can form air duct, and it is not tight that air duct can cause coal hole and intermediate fissure zone to block, and influences to seal
Hole effect, and it is possible to the problem for some influence safety occur.
Invention content
The purpose of this utility model is solved in the prior art since the moisture content in cement can form many holes after evaporation
Problem of the gap to cause sealing of hole not tight, to solve the above problems, providing slip casting bag pocket type hole packer.
The purpose of this utility model is realized in the following manner：
The end of slip casting bag pocket type hole packer, including gas drainage pipe and Grouting Pipe, gas drainage pipe and Grouting Pipe is cased with
Cloth pouch, one section on gas drainage pipe close to cloth pouch is equipped with multiple apertures, and the outside of narrow meshed gas drainage pipe is equipped with
Strainer for crossing drainage.
The Grouting Pipe penetrates in cloth pouch without being pierced by.
The beneficial effects of the utility model：Compared with prior art, the utility model solves in the prior art due to water
Moisture content in mud can form problem of many holes to cause sealing of hole not tight after evaporation, have simple in structure, sealing of hole effect
Good, safe and reliable, highly practical, efficient advantage.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 is gas drainage pipe；2 be Grouting Pipe；3 be cloth pouch；4 be strainer；5 be aperture.
Specific implementation mode
As described in Figure 1, slip casting bag pocket type hole packer, including gas drainage pipe 1 and Grouting Pipe 2, gas drainage pipe 1 and slip casting
The end of pipe 2 is cased with cloth pouch 3, and one section on the gas drainage pipe 1 close to cloth pouch 3 is equipped with multiple apertures 5, band aperture 5
The outside of gas drainage pipe 1 be equipped with and be used for the strainer 4 of drainage.Grouting Pipe 2 connects grouting pump, and explosion is installed in Grouting Pipe 2
Valve.
The Grouting Pipe 2 penetrates in cloth pouch 3 without being pierced by, and is used for the slip casting into cloth pouch 3.
When the utility model is used, gas drainage pipe 1 and Grouting Pipe 2 are put into together in the drilling of coal mine wall, start note
Stock pump can be full of cement grout, cloth pouch 3 can be swollen in cloth pouch 3 and gas drainage pipe 1 at this time by 2 slip casting of Grouting Pipe
It is swollen, coal hole will be sealed after expansion, when pressure reaches certain value, explosive valve meeting explosion, cement is full of gas drainage pipe 1 and coal
Gap between mine wall；Due to being provided with aperture 5 on one section of gas drainage pipe 1 of cloth pouch 3, the moisture in cement can penetrate
Strainer 4, aperture 5 flow into gas drainage pipe 1, until the moisture in cement flows completely out, it at this time just will not be due in cement mortar
Hole is caused after moisture evaporation, the problem that sealing of hole will not be caused not tight.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model, these all do not interfere with the effect and patent practicability of the utility model implementation.
Claims (2)
1. slip casting bag pocket type hole packer, including gas drainage pipe and Grouting Pipe, it is characterised in that：Gas drainage pipe and Grouting Pipe
End is cased with cloth pouch, and one section on gas drainage pipe close to cloth pouch is equipped with multiple apertures, narrow meshed gas drainage pipe
Outside is equipped with the strainer for being used for drainage.
2. slip casting bag pocket type hole packer as described in claim 1, it is characterised in that：The Grouting Pipe penetrate in cloth pouch without
It is pierced by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474347.3U CN208040348U (en) | 2018-04-04 | 2018-04-04 | Slip casting bag pocket type hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474347.3U CN208040348U (en) | 2018-04-04 | 2018-04-04 | Slip casting bag pocket type hole packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040348U true CN208040348U (en) | 2018-11-02 |
Family
ID=63947241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820474347.3U Active CN208040348U (en) | 2018-04-04 | 2018-04-04 | Slip casting bag pocket type hole packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488340A (en) * | 2018-12-30 | 2019-03-19 | 平煤神马建工集团有限公司 | Advanced pouch pre-pouring grout passes rapidly through the construction method in high prominent down-hole goaf |
| CN110159224A (en) * | 2019-05-17 | 2019-08-23 | 河南理工大学 | Three pouches block integral type hole sealing device and method for sealing |
-
2018
- 2018-04-04 CN CN201820474347.3U patent/CN208040348U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488340A (en) * | 2018-12-30 | 2019-03-19 | 平煤神马建工集团有限公司 | Advanced pouch pre-pouring grout passes rapidly through the construction method in high prominent down-hole goaf |
| CN110159224A (en) * | 2019-05-17 | 2019-08-23 | 河南理工大学 | Three pouches block integral type hole sealing device and method for sealing |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |