CN204152475U - Layer-through drilling list pouch hole sealing device - Google Patents
Layer-through drilling list pouch hole sealing device Download PDFInfo
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- CN204152475U CN204152475U CN201420602473.4U CN201420602473U CN204152475U CN 204152475 U CN204152475 U CN 204152475U CN 201420602473 U CN201420602473 U CN 201420602473U CN 204152475 U CN204152475 U CN 204152475U
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Abstract
The utility model belongs to coalmine ventilation and security fields, relates to a kind of layer-through drilling hole sealing device of down-hole.Layer-through drilling list pouch hole sealing device is pouch and the slip casting tubule that a kind of one end at 50mmPE pipe installs that can be filled an air additional, PE pipe simultaneously apart from pouch 3 meters is sieve aperture floral tube, before slip casting first by the PE sieve aperture floral tube plug with pouch that connects in layer-through drilling, pouch is generally 5 meters with the distance in aperture.Before slip casting, first fill air to pouch, filling air pressure is 0.3-0.4MPa, carries out note dedicated water mud after pouch sufficient gas with grouting pump, until cement paste stops slip casting immediately after having the floral tube of sieve aperture to flow out.Connection hole can be carried out draw out methane after grout cures.
Description
Technical field
The utility model belongs to coalmine ventilation and security fields, relates to a kind of layer-through drilling hole sealing device of down-hole.
Background technology
The flat Mine area geologic structure of Shanxi governor is more complicated, in field with "nine squares", roof and floor is obvious by the impact of tectonic stress, in recent years, along with the increase of the pit mining degree of depth and production zone extend to western part, to cause in production zone that geostatic stress is large, gas bearing capacity and pressure large, wherein the gas in existing mining work activities region, four panels is original the highlyest reaches 15.09m
3/ t, original gas pressure is 0.38 ~ 0.55Mpa, and gas diffusion initial speed is 14.3 ~ 20.6, and permeability coefficient is only 0.0116 ~ 0.0520m
2/ (MPa
2d), the extraction drilling and sealing of simultaneously constructing is of poor quality, and the sealing of hole time is long, and aperture gas leakage is large, and the boring of scrapping greatly owing to leaking gas after new construction drill sealing of hole is many, causes drilling-draining concentration low.
Summary of the invention
The utility model is that after wearing boring for construction, sealing of hole adopts the gas leakage of polyurethane sealing of hole, the feature of leaking gas to solve sealing of hole designs, adopted the gas leakage of polyurethane sealing of hole aperture large in the past, the problem that the concentration that draws out methane is low, provide a kind of novel layer-through drilling list pouch hole sealing device, achieve good airproof performance after layer-through drilling sealing of hole, sealing of hole speed simple to operate is fast, improves extraction concentration and the pumping volume of boring single hole.
The utility model adopts following technical scheme to realize:
A kind of layer-through drilling list pouch hole sealing device, comprise a supervisor, periphery, the middle part sealing shroud of described supervisor is equipped with a single pouch, and the afterbody tube wall of described supervisor has some sieve apertures; Also comprise slip casting tubule and gas tube, described slip casting tubule hermetically passing list pouch, single pouch is stretched in described gas tube sealing.
Be specially, described supervisor is made up of the PE pipe that three are connected in turn by joint, every root PE(polyethylene) length of pipe is 4m, diameter is 50mm, be positioned at middle PE pipe periphery and be set with a single pouch, the two ends of described single pouch realize sealing being assemblied in respectively by clip and are positioned at outside middle PE pipe; Maximum gauge after described single bladder expansion is 120-150mm; The tube wall being positioned at the PE pipe on the left side has some sieve apertures.
Outside PE pipe on the right of described slip casting tubule one end hermetically passing list pouch, the other end extend to and be positioned at.
Single pouch is stretched in the sealing of described gas tube one end, the other end extend to be positioned at the right PE pipe outside.
Before slip casting, first the PE pipe close with sieve aperture of innermost end is entered in boring, and be connected with the PE pipe of centre with single pouch; And the PE pipe close of centre with single pouch is entered to hole, single pouch is also filled in boring, and single pouch and orifice distance are 5 meters.The PE pipe of outermost end exposes 300mm-500mm, and be then connected with high-pressure air hose by gas tube and inject air to single pouch, filling air pressure is 0.3-0.4MPa.Can slip casting work be carried out after having noted air, carry out note dedicated water mud after Grouting Pipe being connected, and observe outermost end PE pipe situation, stop slip casting work immediately when outermost end PE pipe has cement paste to flow out.Draw out methane Deng connection hole can be carried out after grout cures.
Hole sealing technology condition is as follows:
It is 0.3-0.4MPa that pouch fills air pressure;
Must be the upper perform hole of construction and bore diameter is the instructions for use just meeting this hole sealing device between 85mm-95mm;
The mixing ratio of water and cement special is 2:1;
Maximum gauge after single bladder expansion is 120-150mm;
Single bladder expansion retention time continues 24h.
When layer-through drilling list pouch hole sealing device uses, technical requirements is as follows:
1, check blast, whether meet technical requirements (0.3-0.4MPa) for wind pressure;
2, check that whether pouch is intact, whether three sealing of hole PE pipes connect;
3, check gas tube, whether slip casting tubule connects;
4, check to be special sealing of hole cement;
5, check whether water and special sealing of hole cement are 2:1.
The utility model is reasonable in design, layer-through drilling list pouch hole sealing device adopts the PE pipe of diameter 50mm and single pouch, sealing of hole is simple, convenient, cement injection can be carried out after being filled with air and making single pouch and rib close contact reach certain pressure, hole can be joined after cement slurry sets draw out methane, reach best sealing of hole effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-PE manages, the mono-pouch of 2-, 3-joint, 4-gas tube, 5-slip casting tubule, 6-sieve aperture, 7-coal (rock) layer, 8-layer-through drilling.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
A kind of layer-through drilling list pouch hole sealing device, as shown in Figure 1, comprise a supervisor, described supervisor is made up of the PE pipe 1 that three are connected in turn by outer silk rectangle joint 3, the length of every root PE pipe 1 is 4m, diameter is 50mm, be positioned at middle PE pipe 1 periphery and be set with a single pouch 2, the two ends of described single pouch 2 realize sealing being assemblied in respectively by clip and are positioned at outside middle PE pipe 1; Maximum gauge after described single pouch 2 expands is 120-150mm; The tube wall being positioned at the PE pipe PE of innermost end (i.e. manage) 1 on the left side has some sieve apertures 6.
Outside PE pipe 1 on the right of described slip casting tubule 5 one end hermetically passing list pouch 2, the other end extend to and be positioned at, be namely positioned at the PE pipe of outermost end.
Single pouch 2 is stretched in the sealing of described gas tube 4 one end, the other end extend to be positioned at the right PE pipe 1 outside, be namely positioned at the PE pipe of outermost end.
During use, layer-through drilling list pouch hole-sealing technology adopts three diameters to be that the PE pipe of 50mm is interconnected, be a floral tube with sieve aperture in innermost end, centre is a PE pipe being provided with single pouch, slip casting tubule is through single pouch, gas tube stretches into single pouch, and there is a valve cock gas tube outer end.Outermost end PE pipe will bundle an isometric gas tube and Grouting Pipe.Gas tube and gas tube, be connected with joint between Grouting Pipe with Grouting Pipe.
Before slip casting, first fill air to single pouch, filling air pressure is 0.3-0.4MPa, carries out note dedicated water mud after pouch sufficient gas with grouting pump, until cement paste stops slip casting immediately after having the floral tube of sieve aperture to flow out.Connection hole can be carried out draw out methane after grout cures.
Claims (3)
1. a layer-through drilling list pouch hole sealing device, is characterized in that: comprise a supervisor, and periphery, the middle part sealing shroud of described supervisor is equipped with a single pouch, and the afterbody tube wall of described supervisor has some sieve apertures;
Also comprise slip casting tubule and gas tube, described slip casting tubule hermetically passing list pouch, single pouch is stretched in described gas tube sealing.
2. layer-through drilling list pouch hole sealing device according to claim 1, it is characterized in that: described supervisor manages (1) by the PE that three are connected in turn by joint (3) and forms, the length of every root PE pipe (1) is 4m, diameter is 50mm, be positioned at middle PE pipe (1) periphery and be set with a single pouch (2), the two ends of described single pouch (2) realize sealing being assemblied in respectively by clip and are positioned at middle PE pipe (1) outward; Maximum gauge after described single pouch (2) expansion is 120-150mm; Be positioned at the left side PE pipe (1) tube wall on have some sieve apertures (6);
Described slip casting tubule (5) one end hermetically passing list pouch (2), the other end extend to the PE being positioned at the right and manage (1) outward;
Single pouch (2) is stretched in the sealing of described gas tube (4) one end, the other end extends to the PE being positioned at the right and manages (1) outward.
3. layer-through drilling list pouch hole sealing device according to claim 2, is characterized in that: described joint (3) is outer silk rectangle joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602473.4U CN204152475U (en) | 2014-10-20 | 2014-10-20 | Layer-through drilling list pouch hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602473.4U CN204152475U (en) | 2014-10-20 | 2014-10-20 | Layer-through drilling list pouch hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152475U true CN204152475U (en) | 2015-02-11 |
Family
ID=52510600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420602473.4U Active CN204152475U (en) | 2014-10-20 | 2014-10-20 | Layer-through drilling list pouch hole sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204152475U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840134A (en) * | 2016-04-08 | 2016-08-10 | 河南理工大学 | Single-bag grouting hole sealing device for upward crossing boreholes and hole sealing method adopting single-bag grouting hole sealing device |
| CN105927214A (en) * | 2016-05-19 | 2016-09-07 | 六盘水师范学院 | Accurate measuring device and measuring method for current coal seam gas pressure |
-
2014
- 2014-10-20 CN CN201420602473.4U patent/CN204152475U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840134A (en) * | 2016-04-08 | 2016-08-10 | 河南理工大学 | Single-bag grouting hole sealing device for upward crossing boreholes and hole sealing method adopting single-bag grouting hole sealing device |
| CN105840134B (en) * | 2016-04-08 | 2018-05-22 | 河南理工大学 | Wear layer single pouch injection hole sealing device of uplink drilling and its a method for sealing |
| CN105927214A (en) * | 2016-05-19 | 2016-09-07 | 六盘水师范学院 | Accurate measuring device and measuring method for current coal seam gas pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160805 Address after: 048000 Jinming office building, Jinding Industrial Zone, Jincheng Coal Group, Jincheng coal mine, Jincheng, Shanxi, 413 Patentee after: Shanxi Shen Yue power-saving technology Co., Ltd Address before: 048006 Jincheng City, North Town, stone town, Shanxi Patentee before: Shanxi Jincheng Anthracite Mining Industry Group Co., Ltd. |