CN208918505U - A kind of removable hole packer for the drilling of coal seam elevation angle concordant - Google Patents
A kind of removable hole packer for the drilling of coal seam elevation angle concordant Download PDFInfo
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- CN208918505U CN208918505U CN201821463987.0U CN201821463987U CN208918505U CN 208918505 U CN208918505 U CN 208918505U CN 201821463987 U CN201821463987 U CN 201821463987U CN 208918505 U CN208918505 U CN 208918505U
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- pipe
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- swelling bag
- grouting
- intermediate tube
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Abstract
The utility model discloses a kind of removable hole packers for the drilling of coal seam elevation angle concordant, including swelling bag, cylinder type bushing, communicating pipe, grouting nozzle, Grouting Pipe, intermediate tube and gas drainage pipe, wherein, cylinder type bushing is made of elastic material, its top surface opening is connect with one end of communicating pipe, the other end of communicating pipe is connected to gas drainage pipe, and communicating pipe is equipped with grouting nozzle；Swelling bag is located in cylinder type bushing and is made of elastic material, and inside is cased with intermediate tube；Grouting Pipe is cased with inside intermediate tube, one end of Grouting Pipe is connected to grouting nozzle.The utility model is expanded using the water-filling of swelling bag, make to cover the cylinder type bushing outside swelling bag to expand therewith, closely withstand on the wall of a borehole, on the one hand to drilling orifice partial compaction, make aperture crack will not gas leakage, on the other hand sealing of hole slurries and swelling bag can be isolated, swelling bag is made to be easy to take out after sealing of hole grout cures.
Description
Technical field
The utility model belongs to coal mine gas drainage technical field, it is specially a kind of for the drilling of coal seam elevation angle concordant can
Tear formula hole packer open.
Background technique
The main mining coal seam in China majority mining area is Gas-bearing Coal Seams, wherein the extraction borehole for completion of constructing in coal seam claims
For concordant drilling.Generally, entire stope is intended to arrangement concordant drilling and carries out extraction, and High Position Drilling also must be
Concordant drilling.
Concordant drilling is the important drilling kind of coal bed gas extraction, but concordant drilling is arranged in coal seam, coal body
Crack is very rich, especially the crack of orifice position, causes the sealing of hole of drilling extremely difficult.It is the elevation angle generally for angle
Concordant drilling, is all made of the sealing of hole mode of a stifled note, and so-called one stifled mostly uses polyurethane to seal the region in 1 meter of aperture
Hole, but the region compacting that being the problem of polyurethane sealing of hole cannot be loose to aperture, cause the crack in aperture still to be opened, still
The phenomenon that will lead to gas leakage appearance.Using hole packer sealing of hole, the swelliong power compacting orifice area of hole packer can use.
However, hole packer will necessarily be adhered together with sealing of hole slurries, hole packer is caused to be difficult to take out.Swelling bag price in hole packer
It is higher, it cannot recycle or in recycling if breakage, operating cost can be made to dramatically increase.
Therefore, it is necessary to invent it is a kind of can either compacting hole schistostoma gap, realize effective closure of coal seam concordant drilling, and easily
In the removable hole packer of taking-up.
Summary of the invention
The utility model provides a kind of for the removable of coal seam elevation angle concordant drilling aiming at above-mentioned defect
Formula hole packer.The technical problems to be solved in the utility model is that elevation angle concordant drilling and sealing effect is poor in the prior art, hole packer
It is difficult to recycle due to being adhered with sealing of hole slurries.
The technical solution of the utility model is a kind of removable hole packer for the drilling of coal seam elevation angle concordant, including expansion
Capsule, cylinder type bushing, communicating pipe, grouting nozzle, Grouting Pipe, intermediate tube and gas drainage pipe, wherein
Cylinder type bushing is made of elastic material, lower ending opening, and upper end top surface has opening, and the top surface is open and connects
One end of siphunculus connects, and the other end of communicating pipe is connected to gas drainage pipe, and communicating pipe is equipped with grouting nozzle；
Swelling bag is located in cylinder type bushing and is made of elastic material, and swelling bag is hollow cylindrical structure, intermediate tube
Axially it is arranged inside hollow cylinder and along hollow cylinder, the intermediate tube passes through the both ends open of swelling bag；
Grouting Pipe is cased in intermediate tube, one end of Grouting Pipe is connected to the one end of grouting nozzle within communicating pipe.
Preferably, the top surface opening of cylinder type bushing is fixedly connected with communicating pipe.
Preferably, communicating pipe is fixedly connected with gas drainage pipe.
It preferably, is to be detachably connected between Grouting Pipe and grouting nozzle.
Preferably, the material of cylinder type bushing and swelling bag is elastic rubber.
Specifically, swelling bag is fixedly connected close to one end of communicating pipe with intermediate tube, the other end and intermediate tube activity connect
It connects, is sealed between swelling bag and intermediate tube.
Preferably, communicating pipe is polyvinyl chloride pipe.
Preferably, intermediate tube is seamless steel pipe.
The beneficial effects of the utility model are as follows.
1, the utility model is expanded using the water-filling of swelling bag, is made to cover the cylinder type bushing outside swelling bag and is expanded therewith,
The side of cylinder type bushing is closely withstood on the wall of a borehole, on the one hand to drilling orifice partial compaction, leak aperture crack will not
On the other hand sealing of hole slurries and swelling bag can be isolated in gas, swelling bag is made to be easy to take out after sealing of hole grout cures.
2, when due to expansion sealing of hole, the side of cylinder type bushing is closely withstood on the wall of a borehole, and sealing of hole slurries can not penetrate into, institute
It is not contacted with the side of cylinder type bushing with sealing of hole slurries.After swelling bag taking-up, the side wall of cylinder type bushing is shrinkable, with
The methane gas extraction pipeline of underground is tightly connected, and realizes gas drainage.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of the removable hole packer for the drilling of coal seam elevation angle concordant of the utility model.
Fig. 2 shows structural schematic diagram of the removable hole packer of the utility model in sealing of hole operation.
Fig. 3 shows that structure when the removable hole packer of the utility model carries out gas drainage operation after sealing of hole operation is shown
It is intended to.
In figure, 1, swelling bag；2, cylinder type bushing；3, communicating pipe；4, grouting nozzle；5, Grouting Pipe；6, intermediate tube；7, gas
Drainage tube；8, plug is blocked；9, extraction connecting tube.
Specific embodiment
The technical side of the utility model is described in detail in the utility model in order to better understand with specific example below
Case, but the utility model is not limited thereto.In the examples below, the removable hole packer of the utility model is sent into drilling
Direction be it is upper, under relative direction is.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of removable hole packer for the drilling of coal seam elevation angle concordant, including expansion
Capsule 1, cylinder type bushing 2, communicating pipe 3, grouting nozzle 4, Grouting Pipe 5, intermediate tube 6 and gas drainage pipe 7.Swelling bag 1 is by resistance to compression bullet
Property rubber constitute, cylinder type bushing 2 is made of wearable elastic rubber, and communicating pipe 3 is polyvinyl chloride pipe, and intermediate tube 6 is seamless steel
Pipe.
The lower ending opening of cylinder type bushing 2, upper end top surface face have opening, and the top surface opening passes through gluing and communicating pipe
3 one end is fixedly connected, and the other end of communicating pipe 3 is fixedly connected and is connected to gas drainage pipe 7 by screw thread or gluing, is connected to
Pipe 3 is equipped with grouting nozzle 4.
Swelling bag 1 is located in cylinder type bushing 2 and is hollow cylindrical structure, and intermediate tube 6 is located inside hollow cylinder simultaneously
Axially it is arranged along hollow cylinder, the intermediate tube 6 passes through the both ends open of swelling bag 1.Swelling bag 1 is close to the one of communicating pipe 3
End is hermetically fixedly connected by gluing with the outer wall of intermediate tube 6, and the other end is sealed by the outer wall of ring slider and intermediate tube 6
Ground is flexibly connected, and the ring slider can be slided with the expansion or shrinkage of swelling bag 1 along intermediate tube 6.Swelling bag 1 has water filling
Mouth and discharge outlet.
Grouting Pipe 5 is cased in intermediate tube 6, one end and the one end of grouting nozzle 4 within communicating pipe 3 of Grouting Pipe 5 detachably connect
It connects and is connected to.
The operating procedure of the removable hole packer of the utility model is as follows:
1, after the completion of the drilling of elevation angle concordant, by cylinder type bushing 2 and the communicating pipe being firmly connected with it 3 and gas drainage pipe
7 are sent into drilling.
2, the Grouting Pipe 5 inside swelling bag 1 and its intermediate tube 6 and intermediate tube 6 of inside is sent into cylinder type bushing 2
It is interior, it connect Grouting Pipe 5 with grouting nozzle 4, and swelling bag 1 is withstood communicating pipe 3.
3, into swelling bag 1, water filling makes its expansion, when hydraulic pressure reaches 3-5MPa, stops water filling.Swelling bag 1 will be justified at this time
The side wall of cartridge type bushing 2 is withstood on the wall of a borehole, makes do not have gap between the side wall and the wall of a borehole of cylinder type bushing 2, such as Fig. 2 institute
Show.
4, Grouting Pipe 5 is connect with underground grouting system, cement mortar is injected into drilling by grouting nozzle 4.With dampening
Liquid level of the cement mortar in drilling rises, and slurries can be flowed into from the upper end opening of gas drainage pipe 7, and successively along gas drainage pipe
7, communicating pipe 3 and intermediate tube 6 flow downward.When intermediate tube 6 returns slurry, that is, observe that the lower end of intermediate tube 6 is begun to flow out
When cement mortar, stop slip casting immediately, in case the cement mortar for flowing into gas drainage pipe 7 excessively results in blockage.Later with closure
Plug 8 clogs the lower ending opening of Grouting Pipe 5.
5, the 72nd hour after slip casting, cement mortar has solidified.By the water discharge in swelling bag 1, the body of swelling bag 1
Product is shunk.Due to having cylinder type bushing 2 to separate between swelling bag 1 and cement mortar, swelling bag 1 is not contacted with cement mortar,
The resistance for taking out swelling bag 1 greatly reduces, and thus easily recycles the intermediate tube 6 and Grouting Pipe 5 and can of swelling bag 1 and its inside
Recycling, and cylinder type bushing 2, communicating pipe 3, grouting nozzle 4 and gas drainage pipe 7 are stayed in drilling.
6, after taking out swelling bag 1, by the extraction connecting tube 9 of the lower ending opening of cylinder type bushing and underground gas extraction pipeline
Connection, as shown in Figure 3.Do not have gap, not seeped by cement mortar between the side wall and the wall of a borehole of cylinder type bushing 2 when due to slip casting
Enter, only the top surface of cylinder type bushing 2 is contacted with cement mortar, so the side wall of cylinder type bushing 2 can be easily de- with the wall of a borehole
From to shrink and be tightly connected with extraction connecting tube 9, to carry out gas drainage.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by embodiment is stated to modify or equivalent replacement of some of the technical features；And these are repaired
Change or replaces, the spirit and model of the technical solution of the utility model embodiment that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (8)
1. a kind of removable hole packer for the drilling of coal seam elevation angle concordant, which is characterized in that including swelling bag (1), cylinder type
Bushing (2), communicating pipe (3), grouting nozzle (4), Grouting Pipe (5), intermediate tube (6) and gas drainage pipe (7), wherein
Cylinder type bushing (2) is made of elastic material, lower ending opening, and upper end top surface has opening, and the top surface is open and connects
One end of siphunculus (3) connects, and the other end of communicating pipe (3) is connected to gas drainage pipe (7), and communicating pipe (3) is equipped with grouting nozzle
(4)；
Swelling bag (1) is located in cylinder type bushing (2) and is made of elastic material, and swelling bag (1) is hollow cylindrical structure, in
Between pipe be located at hollow cylinder inside and along hollow cylinder axially be arranged, the intermediate tube pass through swelling bag (1) both ends open；
It is cased with Grouting Pipe (5) in intermediate tube (6), the one end of one end and grouting nozzle (4) of Grouting Pipe (5) in communicating pipe (3) connects
It is logical.
2. the removable hole packer according to claim 1 for the drilling of coal seam elevation angle concordant, which is characterized in that cylinder type
The top surface opening of bushing (2) is fixedly connected with communicating pipe (3).
3. the removable hole packer according to claim 2 for the drilling of coal seam elevation angle concordant, which is characterized in that communicating pipe
(3) it is fixedly connected with gas drainage pipe (7).
4. the removable hole packer according to claim 3 for the drilling of coal seam elevation angle concordant, which is characterized in that Grouting Pipe
It (5) is to be detachably connected between grouting nozzle (4).
5. the removable hole packer according to any one of claim 1 to 4 for the drilling of coal seam elevation angle concordant, feature
It is, the material of cylinder type bushing (2) and swelling bag is elastic rubber.
6. the removable hole packer according to claim 5 for the drilling of coal seam elevation angle concordant, which is characterized in that swelling bag
(1) one end close to communicating pipe (3) is fixedly connected with intermediate tube (6), and the other end is flexibly connected with intermediate tube (6), swelling bag (1)
It is sealed between intermediate tube (6).
7. the removable hole packer according to claim 5 for the drilling of coal seam elevation angle concordant, which is characterized in that communicating pipe
It (3) is polyvinyl chloride pipe.
8. the removable hole packer according to claim 5 for the drilling of coal seam elevation angle concordant, which is characterized in that intermediate tube
It (6) is seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821463987.0U CN208918505U (en) | 2018-09-07 | 2018-09-07 | A kind of removable hole packer for the drilling of coal seam elevation angle concordant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821463987.0U CN208918505U (en) | 2018-09-07 | 2018-09-07 | A kind of removable hole packer for the drilling of coal seam elevation angle concordant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918505U true CN208918505U (en) | 2019-05-31 |
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ID=66703430
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821463987.0U Active CN208918505U (en) | 2018-09-07 | 2018-09-07 | A kind of removable hole packer for the drilling of coal seam elevation angle concordant |
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| Country | Link |
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| CN (1) | CN208918505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282693A (en) * | 2020-12-28 | 2021-01-29 | 山西工程技术学院 | Method for closing inclined large-diameter drill hole of coal mine |
-
2018
- 2018-09-07 CN CN201821463987.0U patent/CN208918505U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282693A (en) * | 2020-12-28 | 2021-01-29 | 山西工程技术学院 | Method for closing inclined large-diameter drill hole of coal mine |
| CN112282693B (en) * | 2020-12-28 | 2022-09-23 | 山西工程技术学院 | Method for closing inclined large-diameter drill hole of coal mine |
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