CN205858264U - A kind of hole sealing device for boring - Google Patents
A kind of hole sealing device for boring Download PDFInfo
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- CN205858264U CN205858264U CN201620457836.9U CN201620457836U CN205858264U CN 205858264 U CN205858264 U CN 205858264U CN 201620457836 U CN201620457836 U CN 201620457836U CN 205858264 U CN205858264 U CN 205858264U
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Abstract
A kind of hole sealing device for boring, including hole sealing tube, pouch, interior lost circulation plug, outer lost circulation plug and stay cord；The two ends of hole sealing tube are arranged with interior lost circulation plug and outer lost circulation plug respectively, and the two ends of hole sealing tube pass respectively from interior lost circulation plug and outer lost circulation plug；Pouch includes that cyst membrane, cyst membrane coaxial surrounding are arranged at the outside of hole sealing tube, and forms, with the outer wall of hole sealing tube, the annular pouch sealed；Thickness≤the 1mm of cyst membrane；Being provided with at least two barrier in pouch, pouch is separated into the mutual disconnected capsule room of at least two by barrier；One end of stay cord is fixedly connected at least one barrier, and the other end passes outer lost circulation plug；Pouch is for containing the sealing material comprising Multicomponent, and capsule room is respectively used to contain the one of which component of described sealing material.This hole sealing device, as long as pulling stay cord, i.e. removable or tear barrier, the raw reaction of sealing material hybrid concurrency that makes each capsule indoor and expand, thus realize the sealing to boring, simple to operate, sealing of hole is effective.
Description
Technical field
This utility model belongs to field, colliery, a kind of hole sealing device for boring.
Background technology
Mine " one through three prevention " is the most important thing of safety of coal mines, and gas preventing and control is in the weight that " one through three prevention " works
Weight, gas control work is the important means of accident prevention, gas accident be natural disaster the most serious in coal production it
One.Mash gas extraction is to solve measure the most basic in the problems such as mine gas content is high, gas emission is big, affects mine gas
The factor of extracting result is many, and wherein the sealing of hole effect of extraction borehole is to carry out the most basic protection of extraction work
Measure.Gas control focuses on extraction, and extracting result depends on the factors such as sealing of hole effect.The effect of hole pumping and mining to be given full play to,
Reaching anticipated extracting result, the sealing of hole effect of boring is to determine the important content whether extraction can be up to standard.If sealing of hole effect
Difference, directly affects extracting result.
For the method for sealing of mash gas pumping drilling, macromolecular material sealing of hole, mechanical elasticity sealing of hole, inflated type is mainly had to seal
Hole device sealing of hole or hydraulic expansion type hole packer sealing of hole.The method for sealing of these traditional extraction boreholes is simply to utilize macromolecule material
To the method crammed of boring, there is the problems such as resistance to compression amount low, compressible is big in material or cement, extraction time length begins to Lou
Gas, the coal seam that the most inapplicable coal seam relatively crushes carries out extraction, and extracting result is poor；The most traditional hole sealing technology is the most numerous
Trivial, operation adds labor intensity to workman, also brings difficulty to management.
Similarly, other borings similar with mash gas pumping drilling, such as the brill in the boring of mine leting speeper, Tunnel Engineering
Holes etc., are also to use conventional methods to carry out sealing of hole, and not only sealing of hole effect is bad, has a strong impact on corresponding operation process and operation
Effect, and hole sealing technology is loaded down with trivial details, increases labor intensity and the management difficulty of operation of workman.
Sum up current hole sealing technology to suffer from the drawback that and weak point:
(1) principle of macromolecular material sealing of hole is exactly that the characteristic utilizing its high multiple to foam carries out sealing of hole, but existing skill
When art carries out sealing of hole to boring, not used for the specific purpose tool of sealing of hole, simply after hole sealing tube is placed in boring, by macromolecule
Applying material is on drill hole inner wall, and the gap between drill hole inner wall and hole sealing tube is less, and therefore macromolecular material is not easy to be coated with
Smearing on drill hole inner wall, applying amount is few, and can only smear near hell, deeper place smear less than so that boring with
The macromolecular material of q.s can not be smeared between the space of hole sealing tube；Highly gassy mine and coal and gas outburst mine are typically adopted
Deeply continuing to increase, corresponding crustal stress is the biggest, and it is the most relatively low to add coal strength, and down-hole coal bed boring is in crustal stress effect
Lower by gradually creep, boring is during creep, and boring coal body around will produce loosening crack, will produce leakage afterwards
Gas passage.Add high molecular foam material foaming and there is the shortcoming that the low and compressible amount of comprcssive strength is big so that macromolecule material
Expecting shrink in reaction and process of setting, the reaction of the most insufficient amount of macromolecular material will produce space after shrinking and split
Gap, space and crack will generate leakage path therewith.Leakage path can discharge extraction pressure, causes Drained rate to reduce, directly
Affect extraction rate.
(2) some mine the most domestic uses mechanical elasticity sealing of hole, and the longest mechanical elasticity hole sealing technology seen has
Two kinds: one is spiral elasticity packing formula hole packer, another kind is elastic string ball hole packer, the operation principle of both sealing of holes
It is all under the squeezing action of applied force, forces elastic gum bucket or elastic string ball to expand, be adjacent to drill hole inner wall, reach sealing of hole
Purpose；After applied force is cancelled, glue bucket or string ball restore to the original state under the resilient force of self, can take out from boring,
Reuse.This technology is used in the provisional sealing of hole of coal-face, drilling depth at 5-10 rice, main extraction work surface front
Gas in relaxation zone, at distance aperture 1-2 rice sealing of hole, they are very poor to the sealing property of boring, and gas leakage is very serious, not
Can be used for the sealing of hole of the long-acting extraction borehole in this coal seam, high-efficiency mine does not the most use this method for sealing.
(3) current, there is part mine to be continuing with traditional inflated type hole packer.Inflated type hole packer mainly has two kinds,
One is non-aerated gasbag formula, and another kind is Inflatable air bag type.Gas confinement in a rubber bag tank, is had in the middle part of air bag by the former
A piece hole sealing tube, utilizes the compressibility of gas that air bag is filled in the existing sealing of hole of boring interior-excess, mainly seals in the range of 1 meter of aperture
Hole；Be not closed air in the air bag of the latter, in the middle part of air bag, have a hole sealing tube, after air bag is filled in boring, the most again to
Airbag aeration.Both effects are almost the same, can only be as provisional sealing of hole.Can not be as the one of mash gas pumping drilling
Hole sealing technology and mode.
(4) principle of hydraulic expansion type hole packer is: after press water enters hole packer, by being formed in expansion apparatus inside
Hydraulic pressure raise promote hole packer sebific duct to expand, thus reach closure hole purpose.Dilated rubber hose can be that steel wire is combined
Sebific duct, the water injection pressure in sebific duct can reach the highest pressure, has good sealing effect to boring.This hole packer exists
Coal-bed flooding aspect more, but for this coal seam be infeasible from the point of view of wearing the long-acting extraction of layer, two aspect reasons: on the one hand
It is relatively costly；On the other hand it is the tiny leakage of hole packer it cannot be guaranteed that the effect of long-acting sealing of hole.
In recent years, the hole sealing technology of boring has been developed into cement filling, synthetic material sealing of hole by original polyurethane sealing of hole
Etc. technology.Gas pumping technology is greatly improved and develops, and no matter has from arrangement and the quantity of extraction borehole
The biggest change.But owing to height is dashed forward geological condition of coal mine, coal-bed gas breathability, cracks in coal seam growth, gas bearing capacity, gas
The different choice sealing of hole mode of the conditions such as pressure is the most different, brings very big inconvenience to extraction work；And the most suitably seal
, all there is the problems such as poor, the gas leakage of sealing more or less in aperture apparatus so that sealing of hole effect is not the most especially desirable.
Other borings similar with mash gas pumping drilling there is also similar problem.
Utility model content
The purpose of this utility model is to provide a kind of hole sealing device for boring, and this device is for sealing boring
Hole, sealing of hole is effective, and simple in construction, easy to operate.
The technical solution of the utility model is as follows:
A kind of hole sealing device for boring, it is characterised in that described hole sealing device includes hole sealing tube, pouch, interior leak stopping
Plug, outer lost circulation plug and stay cord；The two ends of described hole sealing tube are arranged with interior lost circulation plug and outer stifled according to the mode of interference fit respectively
Leakage is filled in, and the two ends of described hole sealing tube pass respectively from described interior lost circulation plug and outer lost circulation plug；Described pouch includes cyst membrane, institute
State cyst membrane coaxial surrounding and be arranged at the outside of described hole sealing tube, and form, with the outer wall of described hole sealing tube, the annular pouch sealed；
Thickness≤the 1mm of described cyst membrane；Being provided with at least two barrier in axial direction in described pouch, described barrier is by described capsule
Bag is separated into the mutual disconnected capsule room of at least two；One end of described stay cord is fixedly connected at least one described barrier use
In removing barrier or tearing, the other end passes described outer lost circulation plug；Described pouch comprises Multicomponent for containing
Sealing material, each described capsule room is respectively used to contain the one of which component of described sealing material.
Preferably, the closed end of described one-way exhaust pipe stretches in described pouch through described outer lost circulation plug, described unidirectional row
Trachea is provided with multiple steam vent on the tube wall in stretching into described pouch, the opening of described one-way exhaust pipe be positioned at described outside
The outside of lost circulation plug is used for aerofluxus from inside to outside.
Preferably, described hole sealing device also includes compression tube, and institute is stretched into through described outer lost circulation plug in one end of described compression tube
Stating in pouch, the other end is for being connected with pressue device.
Preferably, one end that described compression tube is connected with described pressue device is additionally provided with check valve.
Preferably, described pressue device is compressed-air system.
Preferably, described hole sealing device also includes protecting sleeve pipe, and described protection sleeve pipe is sheathed on described pouch removedly
Outside.
Preferably, described protection sleeve pipe includes sleeve pipe and is removably covered on the lid at described sleeve pipe two ends.
Preferably, described stay cord passes the part of described outer lost circulation plug and is provided with stickers, and described stickers is for by described
The part that stay cord is positioned at outside described outer lost circulation plug is fixed on described outer lost circulation plug 5.
The beneficial effects of the utility model are:
(1) hole sealing device of mash gas pumping drilling of the present utility model, as long as pulling stay cord, i.e. removable or tear every
Gear, and then make the raw reaction of different component hybrid concurrency of each capsule indoor sealing material, and then expand, and make splitting around boring
Gap obtains filling, the leakage path formed when eliminating perforate and crack, i.e. eliminates initial stage leakage path；It is further able to make to hole
To reliable supporting, it is ensured that stablizing of boring, make no longer to produce around boring new leakage path and crack, i.e. avoid the later stage to leak
The generation of gas passage and development, thus realize the sealing to boring, simple to operate, sealing of hole is effective；Interior lost circulation plug and outer leak stopping
The setting of plug, it is ensured that during use, material does not leaks outside, and plays sealing function；And this hole sealing device is the complete set designed
Device, need not carry out proportioning and filling to material during use temporarily, and simple to operate, easy to use, operation sequence is few, can improve work
Make efficiency and safety；Outer wall thickness≤the 1mm of pouch so that after the different component reaction of sealing material expands, easily by capsule
Bag outer wall rises brokenly, and then realizes its filling to boring crack around, while eliminating existing leakage path, it is possible to prevent
New leakage path；
(2) interior lost circulation plug and the setting of outer lost circulation plug, it is ensured that during use, material does not leaks outside, it is ensured that in the position needing sealing of hole
It is equipped with enough sealing materials, is further ensured that the sealing of hole effect to boring；
(3) setting of one-way exhaust pipe, contributes to discharging the gas in sealing material in pouch, prevents gas to sealing of hole
The reaction of material impacts, and then prevents it from affecting sealing of hole effect；
(4) setting of compression tube, can give the pressure that the indoor sealing material of capsule is certain, contribute to each capsule indoor sealing of hole
The uniform mixing of material, makes reaction more abundant, strengthens its reaction effect, reaction mass and expansion effect, and then improves sealing of hole effect
Really, make sealing material react expansion after pressure increase, to peripheral expansion power strengthen, strengthen sealing of hole space, prevent material anti-
Answer after-contraction leaving space and produce leakage path；Meanwhile, the gas being passed through to capsule indoor during compression tube pressurization, by unidirectional row
Trachea is discharged, and does not interferes with the reaction of sealing material so that the reacted dilatant of sealing material is more closely knit, will not produce hole
Gap, sealing of hole is effective；The setting of compression tube, it is also possible to realized pouch outer wall and the destruction of barrier by bigger pressurization, enter
And make it rupture；
(5) setting of stay cord tail end stickers so that stay cord tail end, when storage configuration, is fixed on outer stifled by hole sealing device
Leakage beyond the Great Wall, pulls stay cord during convenient use；
(6) pouch is used for containing sealing material, and each component at not used time sealing material contains in each capsule indoor respectively,
Stay cord the most only need to be pulled to tear barrier, and each component the life of quick hybrid concurrency can be reacted and expand, and improves sealing of hole effect；
(7) protect the setting of sleeve pipe, can prevent pouch breakage in transport with deposit to wait environment plays a protective role,
Prevent sealing material from leaking outside further and make hole sealing device lose efficacy.
Accompanying drawing explanation
Fig. 1 is hole sealing device of the present utility model storage configuration schematic diagram in one embodiment；
Fig. 2 is that hole sealing device of the present utility model is not set with protection sleeve pipe view in one embodiment；
Fig. 3 is the hole sealing device of the present utility model axial sectional view in a kind of embodiment being set with protection sleeve pipe；
Fig. 4 is the A-A sectional view of Fig. 2；
Fig. 5 is the view being in boring after hole sealing device of the present utility model removes protection sleeve pipe；
Fig. 6 is the B-B sectional view of Fig. 5；
Fig. 7 is the axonometric chart of the outer lost circulation plug of hole sealing device of the present utility model；
Fig. 8 is the axial sectional view of the outer lost circulation plug of hole sealing device of the present utility model；
Fig. 9 is the axonometric chart of the interior lost circulation plug of hole sealing device of the present utility model；
Figure 10 is the axial sectional view of the interior lost circulation plug of hole sealing device of the present utility model.
Detailed description of the invention
Below by way of detailed description of the invention, technical solutions of the utility model and effect thereof are described further.Hereinafter implement
Mode is merely to illustrate content of the present utility model, is not limited to protection domain of the present utility model.Apply this practicality new
The simple change that this utility model is carried out by the design of type is all in the scope that this utility model is claimed.
As Figure 1-10 shows, the hole sealing device of a kind of mash gas pumping drilling, described hole sealing device includes hole sealing tube 1, pouch
2, interior lost circulation plug 4, outer lost circulation plug 5 and stay cord 6；In the two ends of described hole sealing tube 1 are arranged with according to the mode of interference fit respectively
Lost circulation plug 4 and outer lost circulation plug 5, and the two ends of described hole sealing tube 1 pass respectively from described interior lost circulation plug 4 and outer lost circulation plug 5；Institute
State pouch 2 and include that cyst membrane 23, described cyst membrane 23 coaxial surrounding are arranged at the outside of described hole sealing tube 1, and with described hole sealing tube 1
Outer wall forms the annular pouch sealed；Thickness≤the 1mm of described cyst membrane 23；It is provided with the most extremely in described pouch 2
Few two barriers 21, described pouch 2 is separated into the mutual disconnected capsule room 22 of at least two by described barrier 21；Described stay cord 6
One end be fixedly connected at least one described barrier 21 for barrier 21 is removed or tears, the other end passes described
Outer lost circulation plug 5；Containing sealing material in described pouch 2, described sealing material comprises Multicomponent, divides in each described capsule room 22
Do not contain the one of which component of described sealing material.
Preferably, the thickness≤0.5mm of described cyst membrane 23.
As long as the thickness of described cyst membrane 23 ensures that it keeps stable under normal circumstances, each component at sealing material occurs
Can will rise brokenly when reacting and expand.In the case of considering cost, the thickness of cyst membrane 23 can reach the base of above-mentioned requirements
On plinth the smaller the better, during the thickness≤0.5mm of cyst membrane 23, above-mentioned requirements can be met, again can be cost-effective.
In one embodiment, described interior lost circulation plug 4 and outer lost circulation plug 5 are the straight circular cone of butt, including coaxial and phase
The most parallel bottom surface and cross section, and connect bottom surface and the curved surface in cross section；The basal diameter of described outer lost circulation plug 5 and boring 9
Internal diameter ratio is 10.5-12:10, preferably 11:10；The diameter of section of described outer lost circulation plug 5 is 6-with the internal diameter ratio of boring 9
9.5:10, preferably 9:10；The basal diameter of described interior lost circulation plug 4 is 6-9.5:10, preferably 9:10 with the internal diameter ratio of boring 9；
The diameter of section of described interior lost circulation plug 4 is 1-7.5:10, preferably 7:10 with the internal diameter ratio of boring 9；Described outer lost circulation plug 5 and interior
The axial cross section of lost circulation plug 4 is isosceles trapezoid, and the acute angle of the axial cross section of described outer lost circulation plug 5 and interior lost circulation plug 4 divides
Not Wei α, β, 45 °≤α≤55 °, 45 °≤β≤55 °, preferably α=β=50 °；Described interior lost circulation plug 4 and the bottom surface of outer lost circulation plug 5
It is followed successively by with position on described hole sealing tube 1, the cross section: the bottom surface of outer lost circulation plug 5, the cross section of outer lost circulation plug 5, interior lost circulation plug 4
Bottom surface, the cross section of interior lost circulation plug 4.
Bottom surface refers to the bottom surface of the straight circular cone of butt, and cross section refers to another one face parallel with bottom surface on the straight circular cone of butt,
Cross section when being that straight circular cone is clipped head.
Acute angle is meant less than the angle of 90 °, the acute angle folder of the axial cross section of described outer lost circulation plug 5 and interior lost circulation plug 4
Angle is respectively α, β, refers to that the angle less than 90 ° of the axial cross section of described outer lost circulation plug 5 is α, described interior lost circulation plug 4 axial
The angle less than 90 ° in cross section is β.
The ratio setting of interior lost circulation plug and the basal diameter of outer lost circulation plug and diameter of section and boring internal diameter, and externally block up
The restriction of the acute angle of the axial cross section of leakage plug and interior lost circulation plug, contributes to preventing the sealing material in pouch from outflowing, especially
Be tear barrier after each component material mixing when reacting, prevent from being squeezed by part sealing material during sealing material volumetric expansion
Go out and cause sealing material to run off, it is ensured that have enough sealing materials in the position needing sealing of hole, be further ensured that boring
Sealing of hole effect.
In one embodiment, described hole sealing device also includes one-way exhaust pipe 3, remaining silent of described one-way exhaust pipe 3
End stretches in described pouch 2 through described outer lost circulation plug 5, and the described one-way exhaust pipe 3 tube wall in stretching into described pouch 2 is arranged
Multiple steam vent 31, the opening of described one-way exhaust pipe 3 is had to be positioned at the outside of described outer lost circulation plug 5 for arranging from inside to outside
Gas.
In one embodiment, described hole sealing device also includes compression tube 8, and one end of described compression tube 8 is outside described
Lost circulation plug 5 stretches in described pouch 2, and the other end is for being connected with pressue device, it is preferable that described pressue device is pressure wind system
System or nitrogen-filling system.
Because compressed-air system is seen everywhere in mine, therefore commonly use the compressed-air system pressurization as the application hole sealing device
Device, nitrogen-filling system is arranged on stope, when compressed-air system cisco unity malfunction or compressed-air system insufficient pressure,
Use nitrogen-filling system as the pressue device of hole sealing device.
In one embodiment, one end that described compression tube 8 is connected with described pressue device is additionally provided with check valve
81。
In one embodiment, it is preferable that described stay cord 6 passes the part of outer lost circulation plug 5 and is provided with stickers (in figure not
Illustrate), described stickers is for being fixed on described outer lost circulation plug 5 by the part that described stay cord 6 is positioned at outside outer lost circulation plug 5.
Stickers may be provided at any position of the stay cord 6 being exposed to outside outer lost circulation plug 5.
The setting of stickers, is conducive to being fixed stay cord, conveniently pulls stay cord.
In a preferred embodiment, described sealing material stops liquid, Roc not selected from Ma Lisan, Ai Gelaoni, Roc
Any one in glue and Luokexiu foam.These several sealing materials are all the sealing materials of many components, respectively by least two group
Part composition.
These several sealing materials are all conventional many components sealing materials, during use, are mixed by each component of sealing material
Will react and expand, and then realize the sealing of hole to boring.
In a preferred embodiment, described sealing material is Ma Lisan, and described Ma Lisan includes component A and B component；
Described component A is Ma Lisan resin, and described B component is Ma Lisan catalyst；Described pouch 2 has two capsule rooms 22, said two
Capsule room 22 contains described component A and described B component respectively.
Ma Lisan is a kind of double-component synthesis macromolecule-polyimides glue fat material, and including Ma Lisan resin, and Ma Lisan is urged
Agent, Ma Lisan resin and Ma Lisan catalyst are subpackages, meeting time together with Ma Lisan resin is mixed with Ma Lisan catalyst
Reacting or meet water and produce expansion, reaction itself or foaming generate the feature of polynary netted close elastomer, when it is pushed away by high pressure
Squeeze, be injected into coal rock layer or distress in concrete (the Guan Bi crack that can make coal rock layer under high pressure effect is opened), can be along coal petrography
Layer or distress in concrete extend until all cracks (are included the imperceptible crack of naked eyes and again opened under high pressure effect
Crack) filling.Ma Lisan resin and Ma Lisan catalyst are all the known contents of this area, are not required at this repeat.
The situation of other several sealing materials is similar to.And be also the known content of this area.
Sealing material can be sealing material commonly used in the art, as long as its each component can react to each other and expand, can reach
To sealing of hole effect.
In one embodiment, described cyst membrane 23 is plastic foil, described cyst membrane 23 selected from PE plastic foil, PPR plastic foil,
Any one in PP plastic foil, PS plastic foil, PA plastic foil, HDPE plastic film and PVC plastic film.
Cyst membrane 23 can also be the plastic foil of other materials, as long as can keep stable under normal circumstances, is pullling or is being subject to
Rupture the most permissible in the case of pressure.
The cyst membrane of pouch is plastic foil, is risen brokenly by the outer wall of pouch when expanding after can making sealing material reaction；Selected materials
Plastic foil the most less expensive be easy to get.
In one embodiment, described barrier 21 is band glue Polypropylence Sheet, fixing to incite somebody to action for pasting in described pouch 2
Described pouch 2 is separated at least two capsule room 22；Described barrier 21 preferably is selected from PE Polypropylence Sheet, PP Polypropylence Sheet, PPR Polypropylence Sheet, PS
Any one in Polypropylence Sheet, PA Polypropylence Sheet, HDPE plastic cloth and PVC plastic cloth.
Barrier is band glue Polypropylence Sheet, facilitates it to paste in described pouch fixing so that described pouch is separated at least two
Capsule room, when pulling stay cord, is easily torn off by stay cord or tears so that each component of the sealing material that each capsule is indoor mixes mutually
And react, and then ensure that the keyization operation pulling stay cord just can start this hole sealing device, make the behaviour of this hole sealing device
Work is simplified, and saves manpower, improves efficiency.
In one embodiment, described stay cord 6 is without glue Polypropylence Sheet, preferably is selected from PE Polypropylence Sheet, PPR Polypropylence Sheet, PP
Any one in Polypropylence Sheet, PS Polypropylence Sheet, PA Polypropylence Sheet, HDPE plastic cloth and PVC plastic cloth.
In one embodiment, the Polypropylence Sheet part of barrier 21 and stay cord 6 is formed in one, and as barrier 21
It is partially coated with glue-line, for barrier 21 being pasted onto on the cyst membrane 23 of pouch 2 and the outer wall of hole sealing tube 1, pouch 2 is separated into
At least two capsule disconnected with each other room 22.
In one embodiment, described hole sealing device also includes protecting sleeve pipe 7, and described protection sleeve pipe 7 overlaps removedly
It is located at the outside of described pouch 2.
In a preferred embodiment, described protection sleeve pipe 7 includes sleeve pipe 71 and is removably covered on described set
The lid 72 at pipe 71 two ends.Preferably, the internal diameter of described protection sleeve pipe 7 between the basal diameter of described outer lost circulation plug 5 with described
Between the internal diameter of boring 9；The length of described protection sleeve pipe 7 is more than the length of described hole sealing tube 1, the most described protection sleeve pipe 7
Length is 10.5-12:10 with the ratio of the length of described hole sealing tube 1, further preferred 11:10.
Such setting so that the hole sealing device of the application was both readily transported, convenient operation, only need to open two during use again
The lid 72 of end, then puts into the hole sealing device with sleeve pipe 71 in boring 9, puts in boring by this device, then take out
Sleeve pipe gets final product sealing of hole, easy to use, and reusable.The setting of protection sleeve pipe each several part size, convenient when needs sealing of hole
Hole sealing device is loaded in boring, is also convenient for being extracted out from boring by protection sleeve pipe afterwards, easy to operate, improve sealing of hole efficiency.
In a kind of detailed description of the invention, described hole sealing device includes hole sealing tube 1, pouch 2, interior lost circulation plug 4, outer lost circulation plug
5 and stay cord 6；The two ends of described hole sealing tube 1 are arranged with interior lost circulation plug 4 and outer lost circulation plug 5 according to the mode of interference fit respectively, and
The two ends of described hole sealing tube 1 pass respectively from described interior lost circulation plug 4 and outer lost circulation plug 5；Described pouch 2 includes cyst membrane 23, institute
State cyst membrane 23 coaxial surrounding and be arranged at the outside of described hole sealing tube 1, and the annular balloon of the outer wall formation sealing with described hole sealing tube 1
Bag；Thickness=the 0.5mm of the cyst membrane 23 of described pouch 2；Two barriers 21 in axial direction, institute it is provided with in described pouch 2
State barrier 21 and described pouch 2 is separated into 2 mutual disconnected capsule rooms 22；One end of described stay cord 6 is fixedly connected on wherein
For barrier 21 is removed or torn in one described barrier 21, the other end passes described outer lost circulation plug 5；
Containing sealing material in described pouch 2, described sealing material is Ma Lisan, and described Ma Lisan includes component A and B group
Part；Described component A is Ma Lisan resin, and described B component is Ma Lisan catalyst；Contain described in two described capsule rooms 22 respectively
Component A and described B component；
Described interior lost circulation plug 4 and outer lost circulation plug 5 are the straight circular cone of butt, including bottom surface that is coaxial and that be parallel to each other with cut
Face, and connect bottom surface and the curved surface in cross section；The basal diameter of described outer lost circulation plug 5 is 11:10 with the internal diameter ratio of boring 9；
The diameter of section of described outer lost circulation plug 5 is 9:10 with the internal diameter ratio of boring 9；The basal diameter of described interior lost circulation plug 4 and boring 9
Internal diameter ratio be 9:10；The diameter of section of described interior lost circulation plug 4 is 7:10 with the internal diameter ratio of boring 9；Described outer lost circulation plug 5
It is isosceles trapezoid, the acute angle folder of the axial cross section of described outer lost circulation plug 5 and interior lost circulation plug 4 with the axial cross section of interior lost circulation plug 4
Angle is respectively α, β, α=β=50 °；Described interior lost circulation plug 4 and the bottom surface of outer lost circulation plug 5 and the cross section position on described hole sealing tube 1
Put and be followed successively by: the bottom surface of outer lost circulation plug 5, the cross section of outer lost circulation plug 5, the bottom surface of interior lost circulation plug 4, the cross section of interior lost circulation plug 4；
Described hole sealing device also includes one-way exhaust pipe 3, and the closed end of described one-way exhaust pipe 3 is through described outer lost circulation plug 5
Stretching in described pouch 2, described one-way exhaust pipe 3 is provided with multiple steam vent 31, institute on the tube wall in stretching into described pouch 2
The opening stating one-way exhaust pipe 3 is positioned at the outside of described outer lost circulation plug 5 for aerofluxus from inside to outside；
Described hole sealing device also includes compression tube 8, and described capsule is stretched into through described outer lost circulation plug 5 in one end of described compression tube 8
In bag 2, the other end is for being connected with pressue device；Described pressue device is compressed-air system；Described compression tube 8 and described pressurization
One end that device is connected is additionally provided with check valve 81；
Described stay cord 6 passes the part of outer lost circulation plug 5 and is provided with stickers, and described stickers is for being positioned at described stay cord 6
Part outside outer lost circulation plug 5 is fixed on described outer lost circulation plug 5；
Described cyst membrane 23 is PVC plastic film；Described barrier 21 is the PVC plastic cloth of band glue, for viscous in described pouch 2
Patch is fixing so that described pouch 2 is separated into two capsule rooms 22；Described stay cord 6 is the PVC plastic cloth without glue；Barrier 21 and stay cord
The Polypropylence Sheet part of 6 is formed in one, and is only being partially coated with glue-line as barrier 21；
Described hole sealing device also includes protecting sleeve pipe 7, and described protection sleeve pipe 7 is sheathed on outside described pouch 2 removedly
Side；Described protection sleeve pipe 7 includes sleeve pipe 71 and is removably covered on the lid 72 at described sleeve pipe 71 two ends, described protection sleeve pipe
The internal diameter of 7 is 10.5:10 with the internal diameter ratio of described boring 9；The length of described protection sleeve pipe 7 and the length of described hole sealing tube 1
Ratio be 11:10.
When above-mentioned hole sealing device is applied to the sealing of hole of mash gas pumping drilling, use process as follows:
Take down the lid 72 at protection sleeve pipe 7 middle sleeve 71 two ends, hole sealing device is placed in the boring 9 being opened on coal body 10
In, then sleeve pipe 71 is taken out from boring 9, as it is shown in figure 5, then pull stay cord 6 after taking-up, tear barrier 21, make to contain respectively
The Ma Lisan resin being loaded in 2 capsule rooms 22 of described pouch 2 mixes mutually with Ma Lisan catalyst and reacts, tear every
Gear 21 while, open check valve 81, as pressue device compressed-air system by compression tube 8 be passed through in pouch 2 gas with
Apply pressure, and then ensure the uniformity that sealing material each component mixes, improve reaction effect；Expand after sealing material reaction,
Being risen brokenly by the cyst membrane 23 of pouch 2, Ma Lisan resin and Ma Lisan catalyst react, and now, interference fit is sheathed on described
Although having gap between the inwall of the interior lost circulation plug 4 at hole sealing tube 1 two ends and outer lost circulation plug 5 and boring 9, but gap being less, horse
Expand when beautiful scattered resin and Ma Lisan catalyst react and this gap can be blocked, prevent sealing material to run off, and then make
Abundant sealing material is in the position of required sealing of hole, makes the crack around sealing of hole position boring 9 obtain filling, and elimination is opened
The leakage path formed during hole and crack, i.e. eliminate initial stage leakage path；It is further able to make boring 9 obtain reliable supporting, protects
Stablizing of card boring 9, makes no longer to produce around boring 9 new leakage path and crack, i.e. avoids the generation of later stage leakage path
And development, and then realize the sealing of hole to boring 9；Period, the air of sealing of hole position extrudes due to the sealing material expanded,
Steam vent 31 on one-way exhaust pipe 3 is discharged, and then ensures the density of sealing of hole.
The hole sealing device of the application is in addition to can carrying out sealing of hole to mash gas pumping drilling, it is possible to mine leting speeper is holed,
And the boring in Tunnel Engineering and subway roadway construction engineering carries out sealing of hole, the sealing material simply used with for gas
During extraction borehole different, the boring of different field uses the hole sealing device of the application when carrying out sealing of hole, it is only necessary to by therein
Sealing material is changed to and holes the sealing material adapted, using method with for mash gas pumping drilling time as.
The hole sealing device for boring of the application has the most only carried out easy making and test ,-2015 years in Mays, 2014
February is during the sealing of hole of Ping Gou colliery 010909 work surface of numbered 010909 (010909 refer to) mash gas pumping drilling
The above-mentioned hole sealing device being respectively adopted traditional sealing of hole mode and the application is tested.
Test method is as follows:
Traditional sealing of hole mode, is wrapped in cotton yarn on hole sealing tube and bundlees with iron wire, by the Ma Lisan tree in Ma Lisan
Fat and Ma Lisan catalyst are mixed and stirred for uniformly, obtaining the sealing material prepared, and the sealing material prepared is spread upon winding
On cotton yarn on hole sealing tube, then the hole sealing tube being coated with sealing material is inserted in the mash gas pumping drilling constructed, horse
Beautiful scattered resin and Ma Lisan catalyst slowly react and expand and solidify, and then realize the closure of mash gas pumping drilling；Its
In, cotton yarn can also replace with rag；
The hole sealing device using the application carries out the sealing of hole mode of sealing of hole, and use process is as it has been described above, repeat no more；
Two kinds of method for sealing are 1 MPa at sealing of hole pressure, and during sealed borehole length 8m, result of the test is as follows:
Traditional sealing of hole mode, the extraction time is about 30min, sealing of hole weak effect, poor air-tightness of holing, extraction concentration
27-28%, operation is loaded down with trivial details, and labor intensive is big；
The hole sealing device using the application carries out the sealing of hole mode of sealing of hole, and the extraction time is greatly shortened, for 15min, sealing of hole
Effective, boring air-tightness is good, and extraction concentration substantially rises, and reaches 40%, it is ensured that underground coal mine back production safety, and work is strong
Degree substantially reduces, and operation is simple to operation.
Utilizing sealing material (high molecular foam material) to carry out sealing of hole utilizes its high multiple foam characteristics to carry out sealing of hole exactly,
But having two critical defects after sealing material foams: first, comprcssive strength is low；Second, compressible amount is the biggest.Gao Wa
This mine and coal and gas outburst mine typically continue to increase deeply along with adopting, and corresponding crustal stress also increases, and adds coal seam
Intensity is the most relatively low, and down-hole coal bed boring is by gradually creep under crustal stress effect, and boring is during creep, and boring is around
Coal body will produce loosening crack, the most just create leakage path.Seal in sealing material reaction and process of setting simultaneously
Porous materials itself can shrink, and will produce space and crack, space and crack and be generated as leakage path therewith after contraction.Gas leakage
Passage can discharge extraction pressure, causes Drained rate to reduce, directly affects extraction rate.Therefore traditional sealing of hole mode extraction is used to imitate
Rate is low.And when using the hole sealing device of the application to carry out sealing of hole, owing to preventing sealing material to run off, and ensure that abundant
Sealing material foams, and therefore can ensure to make the crack around boring obtain filling, the leakage path formed when eliminating perforate
And crack, i.e. eliminate initial stage leakage path；It is further ensured that and makes boring obtain reliable supporting, it is ensured that stablizing of boring, make brill
No longer produce new leakage path and crack around hole, i.e. avoid generation and the development of later stage leakage path, thus realize brill
The sealing in hole.
Claims (8)
1. the hole sealing device for boring, it is characterised in that described hole sealing device includes hole sealing tube (1), pouch (2), interior
Lost circulation plug (4), outer lost circulation plug (5) and stay cord (6)；The two ends of described hole sealing tube (1) are sheathed according to the mode of interference fit respectively
There are interior lost circulation plug (4) and outer lost circulation plug (5), and the two ends of described hole sealing tube (1) are respectively from described interior lost circulation plug (4) and outer leak stopping
Plug (5) passes；Described pouch (2) includes that cyst membrane (23), described cyst membrane (23) coaxial surrounding are arranged at described hole sealing tube (1)
Outside, and the annular pouch of the outer wall formation sealing with described hole sealing tube (1)；Thickness≤the 1mm of described cyst membrane (23)；Described capsule
Being provided with at least two barrier (21) in axial direction in bag (2), described pouch (2) is separated at least by described barrier (21)
Two mutual disconnected capsule rooms (22)；One end of described stay cord (6) is fixedly connected on the upper use of at least one described barrier (21)
In barrier (21) is removed or torn, the other end passes described outer lost circulation plug (5)；Described pouch (2) comprises for splendid attire
The sealing material of many components, each described capsule room (22) is respectively used to contain the one of which component of described sealing material.
Hole sealing device the most according to claim 1, it is characterised in that described hole sealing device also includes one-way exhaust pipe (3),
The closed end of described one-way exhaust pipe (3) stretches in described pouch (2) through described outer lost circulation plug (5), described one-way exhaust pipe (3)
Being provided with multiple steam vent (31) on tube wall in stretching into described pouch (2), the opening of described one-way exhaust pipe (3) is positioned at
The outside of described outer lost circulation plug (5) is used for aerofluxus from inside to outside.
Hole sealing device the most according to claim 1 and 2, it is characterised in that described hole sealing device also includes compression tube (8),
One end of described compression tube (8) is stretched in described pouch (2) through described outer lost circulation plug (5), and the other end is used for and pressue device phase
Connect.
Hole sealing device the most according to claim 3, it is characterised in that described compression tube (8) is connected with described pressue device
The one end connect is additionally provided with check valve (81).
Hole sealing device the most according to claim 3, it is characterised in that described pressue device is compressed-air system.
6. according to the hole sealing device according to any one of claim 1,2,4 or 5, it is characterised in that described hole sealing device also wraps
Including protection sleeve pipe (7), described protection sleeve pipe (7) is sheathed on the outside of described pouch (2) removedly.
Hole sealing device the most according to claim 6, it is characterised in that described protection sleeve pipe (7) includes sleeve pipe (71) and can
Releasably it is covered on the lid (72) at described sleeve pipe (71) two ends.
8. according to the hole sealing device according to any one of claim 1,2,4,5 or 7, it is characterised in that described stay cord (6) passes
The part of described outer lost circulation plug (5) is provided with stickers, and described stickers is for being positioned at described stay cord (6) in described outer lost circulation plug
(5) part outward is fixed on described outer lost circulation plug (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620457836.9U CN205858264U (en) | 2016-05-19 | 2016-05-19 | A kind of hole sealing device for boring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620457836.9U CN205858264U (en) | 2016-05-19 | 2016-05-19 | A kind of hole sealing device for boring |
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| CN205858264U true CN205858264U (en) | 2017-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204213A (en) * | 2018-01-15 | 2018-06-26 | 赵耀耀 | A kind of inflatable drilling and sealing section residue cleaning plant and its application method |
| CN110984904A (en) * | 2019-10-29 | 2020-04-10 | 东北大学 | Air pressure type separation high-pressure liquid injection device and method for complex fractured rock mass |
| CN112922636A (en) * | 2021-03-01 | 2021-06-08 | 天地科技股份有限公司 | Surrounding rock support construction method for roadway |
-
2016
- 2016-05-19 CN CN201620457836.9U patent/CN205858264U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204213A (en) * | 2018-01-15 | 2018-06-26 | 赵耀耀 | A kind of inflatable drilling and sealing section residue cleaning plant and its application method |
| CN110984904A (en) * | 2019-10-29 | 2020-04-10 | 东北大学 | Air pressure type separation high-pressure liquid injection device and method for complex fractured rock mass |
| CN110984904B (en) * | 2019-10-29 | 2021-06-18 | 东北大学 | Air pressure type separation high-pressure liquid injection device and method for complex fractured rock mass |
| CN112922636A (en) * | 2021-03-01 | 2021-06-08 | 天地科技股份有限公司 | Surrounding rock support construction method for roadway |
| CN112922636B (en) * | 2021-03-01 | 2023-11-17 | 天地科技股份有限公司 | Surrounding rock supporting construction method for roadway |
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