CN206668212U - A kind of coal mine gas extraction drill hole ring-type hole sealing device - Google Patents
A kind of coal mine gas extraction drill hole ring-type hole sealing device Download PDFInfo
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- CN206668212U CN206668212U CN201720478684.5U CN201720478684U CN206668212U CN 206668212 U CN206668212 U CN 206668212U CN 201720478684 U CN201720478684 U CN 201720478684U CN 206668212 U CN206668212 U CN 206668212U
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- annular
- aluminium foil
- foil bag
- sealing
- coal mine
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Abstract
The utility model discloses a kind of coal mine gas extraction drill hole hole sealing device, it includes gas pumping pipe, an annular aluminium foil bag is bonded with outside gas pumping pipe, annular aluminium foil bag obstructs pull bar by two raw materials in the axial direction and is divided into two bins in left and right, is separately filled with expanded polyurethane component A and expanded polyurethane component B.The utility model can not only rely on the bonding strip on ring-type hole sealing bag, it is rapidly secured on gas pumping pipe, and also achieve comprehensive parcel of the polyurethane sealing of hole material to extraction pipeline, it ensure that even inflation in the space that expanded polyurethane material can be between drilling and pipeline after reacting, it ensure that sealing of hole effect of the polyurethane sealing Porous materials to mash gas pumping drilling section, the sealing quality of polyurethane material is improved, further increases mine gas extraction hole pumping and mining negative pressure, gas density.
Description
Technical field
It the utility model is related to a kind of coal mine gas drainage technology, more particularly to a kind of coal mine gas extraction drill hole sealing of hole dress
Put, belong to mining machine technical field.
Background technology
The polyurethane material that coal mine gas extraction borehole sealing of hole uses at present, because product design is rectangular packed,
During sealing of hole, one side rectangle packed polyurethane material is cumbersome when bundling, time length, and efficiency is low；On the other hand,
The complete parcel to whole drainage tube section is difficult to after the packed polyurethane material binding of rectangle, causes polyurethane material to expand
After foaming, filler can not be filled effectively to the space between drainage tube and drilling completely, cause drainage tube and drilling
Between space dense effect it is undesirable, easily there is the space turned on.Above influence factor will make it that polyurethane sealing Porous materials are swollen
Completely by mash gas pumping drilling section sealing, the sealing of hole effect of polyurethane material can not be had a strong impact on after swollen, or even to follow-up
Grouting process impacts, and ultimately results in a systems such as extraction negative pressure in mash gas pumping drilling is low, gas density is low, extraction efficiency is low
The appearance of row problem.
The content of the invention
The technical problems to be solved in the utility model is：A kind of coal mine gas extraction drill hole ring-type hole sealing device is provided,
It is wrapped in the surrounding of gas pumping pipe by strong bond bar, extracts raw material barrier pull bar during use, two kinds of materials can be mixed fully
Close, drilling is blocked completely, solves above-mentioned technical problem.
The technical solution of the utility model is：
A kind of coal mine gas extraction drill hole ring-type hole sealing device, it includes gas pumping pipe, in the outer of gas pumping pipe
Face is bonded with an annular aluminium foil bag, and annular aluminium foil bag obstructs pull bar by two raw materials in the axial direction and is divided into two bins in left and right,
It is separately filled with expanded polyurethane component A and expanded polyurethane component B.
The annular aluminium foil bag seals the three parts group when, middle feed storage room and lower annular are sealed by upper, annular
Into it is feed(raw material)inlet that upper, annular, which is sealed before side is not loaded into two kinds of polyurethane components, and the centre of middle feed storage room is two
Raw material barrier pull bar separates, and lower annular sealing side is sealed with sealing machine.
The external diameter of the interior annular radius ratio gas pumping pipe of the annular aluminium foil bag wants big 5~10mm, annular aluminium foil bag
Axial length be 300mm~700mm.
The annular aluminium foil bag annular inboard has strong bond bar, and strong bond bar is located at the upper, annular of annular aluminium foil bag
At the 5~10mm of downside for sealing side, the width of strong bond bar is 20mm, bonds scope as on the inside of the ring of annular aluminium foil bag two
In the range of each 120 ° of side.
The length of the raw material barrier pull bar is more than 30~50mm of axial length of annular aluminium foil bag.
Effective force effect of the present utility model is：
Compared with prior art, the utility model is by above technical scheme, in mash gas pumping drilling hole-sealing technology process
It is middle to use ring-type hole sealing device, the bonding strip on ring-type hole sealing bag can not only be relied on, is rapidly secured on gas pumping pipe, and
Comprehensive parcel of the polyurethane sealing Porous materials to extraction pipeline is also achieved, ensure that can be after the reaction of expanded polyurethane material
360 ° of even inflations in space between drilling and pipeline, solve the packed polyurethane sealing of hole material of existing rectangle, bundling operation
It is complicated, the time is long, binding when can not wrap up and mash gas pumping drilling can not break completely during whole drainage tube, polyurethane reaction
The problems such as face closure.Sealing of hole is carried out using prior art, generally requires the used time more than 5 minutes, and is used of the present utility model
Technology, it is only necessary to sealing of hole can be completed less than 1 minute, and sealing of hole effect is fine.The utility model is effectively guaranteed polyurethane
Sealing material improves the sealing quality of polyurethane material, further increased to the sealing of hole effect of mash gas pumping drilling section
Mine gas extraction hole pumping and mining negative pressure, gas density, onsite application positive effect, operating efficiency are greatly improved.
Brief description of the drawings：
A kind of structural representation of Fig. 1 coal mine gas extraction drill hole ring-type hole sealing devices；
A kind of coal mine gas extraction drill holes of Fig. 2 with ring-type hole sealing device do not feed sealing before schematic diagram；
Schematic diagram after a kind of coal mine gas extraction drill holes of Fig. 3 are sealed with ring-type hole sealing device sealing of hole sacked material；
A kind of coal mine gas extraction drill holes of Fig. 4 sectional view of ring-type hole sealing device I-I；
A kind of coal mine gas extraction drill holes of Fig. 5 sectional view of ring-type hole sealing device II-II.
Embodiment：
To make the purpose of this utility model, technical scheme and advantage clearer, below with reference to this specification accompanying drawing pair
The utility model is described in further detail.
Embodiment 1：A kind of coal mine gas extraction drill hole ring-type hole sealing device, it includes gas pumping pipe 4, taken out in gas
The outside for adopting pipe 4 is bonded with an annular aluminium foil bag 1, and annular aluminium foil bag 1 obstructs pull bar 3 by two raw materials in the axial direction and is divided into a left side
Right two bins, are separately filled with expanded polyurethane component A5 and expanded polyurethane component B6.
Further, annular aluminium foil bag 1 seals side 12, middle feed storage room 11 and lower annular by upper, annular and sealed
The three parts composition of side 13, it is feed(raw material)inlet that upper, annular, which is sealed before side 12 is not loaded into two kinds of polyurethane components, and middle feed stores
The centre of room 11 is that two raw materials barrier pull bars 3 separate, and lower annular sealing side 13 is sealed with sealing machine.
Further, the external diameter of the interior annular radius ratio gas pumping pipe 4 of annular aluminium foil bag 1 wants big 6mm, annular aluminium foil
The axial length of bag 1 is 650mm.
Further, the annular annular inboard of aluminium foil bag 1 has strong bond bar 2, and strong bond bar 2 is located at annular aluminium foil bag 1
Upper, annular sealing side 12 downside 10mm places, the width of strong bond bar 2 is 20mm, and cohesive scope is annular aluminium foil bag 1
Ring on the inside of in the range of each 120 ° of both sides.
Further, the length of raw material barrier pull bar 3 is more than the axial length 50mm of annular aluminium foil bag 1.
Further, expanded polyurethane component A5 and expanded polyurethane component B6 are sub-packed in annular aluminium foil bag 1 respectively
Both sides, using in the axial direction raw material barrier pull bar 3 two kinds of material components are separated.When ring-type hole sealing device passes through strength
After bonding strip 2 is adhered on gas pumping pipe 4, it is sent into drilling before carrying out sealing of hole, pulls open raw material barrier pull bar 3, you can real
Existing two kinds of polyurethane components mixing, then mixed polyurethane material is sent into drilling specified location and can be achieved to have drilling
Effect closure.
Embodiment 2：A kind of coal mine gas extraction drill hole ring-type hole sealing device, it includes gas pumping pipe 4, taken out in gas
The outside for adopting pipe 4 is bonded with an annular aluminium foil bag 1, and annular aluminium foil bag 1 obstructs pull bar 3 by two raw materials in the axial direction and is divided into a left side
Right two bins, are separately filled with expanded polyurethane component A5 and expanded polyurethane component B6.
Further, annular aluminium foil bag 1 seals side 12, middle feed storage room 11 and lower annular by upper, annular and sealed
The three parts composition of side 13, it is feed(raw material)inlet that upper, annular, which is sealed before side 12 is not loaded into two kinds of polyurethane components, and middle feed stores
The centre of room 11 is that two raw materials barrier pull bars 3 separate, and lower annular sealing side 13 is sealed with sealing machine.
Further, the external diameter of the interior annular radius ratio gas pumping pipe 4 of annular aluminium foil bag 1 wants big 9mm, annular aluminium foil
The axial length of bag 1 is 350mmmm.
Further, the annular annular inboard of aluminium foil bag 1 has strong bond bar 2, and strong bond bar 2 is located at annular aluminium foil bag 1
Upper, annular sealing side 12 downside 5mm places, the width of strong bond bar 2 be 20mm, and cohesive scope is annular aluminium foil bag 1
On the inside of ring in the range of each 120 ° of both sides.
Further, the length of raw material barrier pull bar 3 is more than the axial length 30mm of annular aluminium foil bag 1.
Further, expanded polyurethane component A5 and expanded polyurethane component B6 are sub-packed in annular aluminium foil bag 1 respectively
Both sides, using in the axial direction raw material barrier pull bar 3 two kinds of material components are separated.When ring-type hole sealing device passes through strength
After bonding strip 2 is adhered on gas pumping pipe 4, it is sent into drilling before carrying out sealing of hole, pulls open raw material barrier pull bar 3, you can real
Existing two kinds of polyurethane components mixing, then mixed polyurethane material is sent into drilling specified location and can be achieved to have drilling
Effect closure.
Claims (5)
1. a kind of coal mine gas extraction drill hole ring-type hole sealing device, it includes gas pumping pipe（4）, it is characterised in that：Watt
This drainage tube（4）Outside be bonded with an annular aluminium foil bag（1）, annular aluminium foil bag（1）Drawn in the axial direction by two raw material barriers
Bar（3）It is divided into two bins in left and right, is separately filled with expanded polyurethane component A（5）With expanded polyurethane component B（6）.
A kind of 2. coal mine gas extraction drill hole ring-type hole sealing device according to claim 1, it is characterised in that：The ring
Shape aluminium foil bag（1）Side is sealed by upper, annular（12）, middle feed storage room（11）Side is sealed with lower annular（13）Three parts
Composition, upper, annular sealing side（12）For polyurethane component feed(raw material)inlet, middle feed storage room（11）Centre be two originals
Material barrier pull bar（3）Separate, lower annular sealing side（13）Sealed with sealing machine.
A kind of 3. coal mine gas extraction drill hole ring-type hole sealing device according to claim 1 or 2, it is characterised in that：Institute
State annular aluminium foil bag（1）Interior annular radius ratio gas pumping pipe（4）External diameter want big 5~10mm, annular aluminium foil bag（1）'s
Axial length is 300mm~700mm.
A kind of 4. coal mine gas extraction drill hole ring-type hole sealing device according to claim 1 or 2, it is characterised in that：Institute
State annular aluminium foil bag（1）Annular inboard has strong bond bar（2）, strong bond bar（2）Positioned at annular aluminium foil bag（1）Top loop
Shape seals side（12）5~10mm of downside at, strong bond bar（2）Width be 20mm, bond scope be annular aluminium foil bag（1）
Ring on the inside of in the range of each 120 ° of both sides.
A kind of 5. coal mine gas extraction drill hole ring-type hole sealing device according to claim 1, it is characterised in that：The original
Material barrier pull bar（3）Length be more than annular aluminium foil bag（1）30~50mm of axial length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478684.5U CN206668212U (en) | 2017-05-02 | 2017-05-02 | A kind of coal mine gas extraction drill hole ring-type hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478684.5U CN206668212U (en) | 2017-05-02 | 2017-05-02 | A kind of coal mine gas extraction drill hole ring-type hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668212U true CN206668212U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720478684.5U Active CN206668212U (en) | 2017-05-02 | 2017-05-02 | A kind of coal mine gas extraction drill hole ring-type hole sealing device |
Country Status (1)
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| CN (1) | CN206668212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930725A (en) * | 2017-05-02 | 2017-07-07 | 贵州盘江精煤股份有限公司 | A kind of coal mine gas extraction drill hole ring-type hole sealing device |
-
2017
- 2017-05-02 CN CN201720478684.5U patent/CN206668212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930725A (en) * | 2017-05-02 | 2017-07-07 | 贵州盘江精煤股份有限公司 | A kind of coal mine gas extraction drill hole ring-type hole sealing device |
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