CN106437603A - Resin hole sealing device - Google Patents
Resin hole sealing device Download PDFInfo
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- CN106437603A CN106437603A CN201510491408.8A CN201510491408A CN106437603A CN 106437603 A CN106437603 A CN 106437603A CN 201510491408 A CN201510491408 A CN 201510491408A CN 106437603 A CN106437603 A CN 106437603A
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- pressure
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- 238000007789 sealing Methods 0.000 title claims abstract description 67
- 229920005989 resin Polymers 0.000 title description 4
- 239000011347 resin Substances 0.000 title description 4
- 238000010276 construction Methods 0.000 claims abstract description 28
- 239000003245 coal Substances 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 20
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 18
- 239000011435 rock Substances 0.000 claims description 16
- 239000004606 Fillers/Extenders Substances 0.000 claims description 10
- 239000006071 cream Substances 0.000 claims description 6
- 229920006262 high density polyethylene film Polymers 0.000 claims description 6
- 229920006305 unsaturated polyester Polymers 0.000 claims description 6
- 229920006332 epoxy adhesive Polymers 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 2
- 239000004575 stone Substances 0.000 abstract description 12
- 230000035699 permeability Effects 0.000 abstract description 7
- 239000002313 adhesive film Substances 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
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- 239000004568 cement Substances 0.000 description 19
- 239000004814 polyurethane Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 18
- 229920002635 polyurethane Polymers 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000002347 injection Methods 0.000 description 15
- 239000007924 injection Substances 0.000 description 15
- 239000003292 glue Substances 0.000 description 14
- 229920005830 Polyurethane Foam Polymers 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000001764 infiltration Methods 0.000 description 11
- 230000008595 infiltration Effects 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 238000007711 solidification Methods 0.000 description 8
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- 238000007906 compression Methods 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
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- 239000007789 gas Substances 0.000 description 3
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- 238000005411 Van der Waals force Methods 0.000 description 2
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- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 208000004141 microcephaly Diseases 0.000 description 2
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- 238000011017 operating method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Provided is a hole sealing device used for blocking pressure fluid in a coal drill hole. The hole sealing device is composed of structural adhesives special for stone bonding, a PU expanding agent and an impermeable HDPE composite film, the shear bond strength of the pressure sealing component structural adhesive film is high, and the impermeability of the permeability sealing component three-layer composite structure is strong. The length of a sealing body is 0.37 m, the construction waiting time is of an I type when being longer than 6 h and is of an II type when being 0.5-6 h, and the pressure sealing capacity is 31 Mpa (the diameter of the drill hole is 9.5 cm) to 53 Mpa (the diameter of the drill hole is 5.5 cm) and the permeability coefficient is 1.3x10<-7>m/s if the I type construction waiting time is 8 h; and the pressure sealing capacity is 15 Mpa (the diameter of the drill hole is 12.5 cm) to 24 Mpa (the diameter of the drill hole is 7.5 cm) and the permeability coefficient is 2.5x10<-7>m/s if the II type construction waiting time is 30 min.
Description
Technical field
The present invention relates to pump pressure water filling, the pressure fluid of pump pressure inlet well block in a kind of mine and Geotechnical Engineering, it is coal rock layer high pressure water injection, water
Defeat split, grouting for water plugging, breaking surrounding rock slip casting solidification, the requisite device of special engineering such as gas pressure measurement.
Background technology
The closure of rock coal bed drilling pressure fluid is related to the hydraulic pressure scope of 0.3～40Mpa, and (firedamp taking-out discharging drilling envelope body two ends pressure reduction only about 0.2 is big
The negative pressure of air pressure, is not related to the present invention) and several tens cm to more than ten meters hole sealing depth.Consider to be divided into two classes, pressure ＞ by hydraulic pressure (pump pressure)
5Mpa should belong to high pressure, and pressure≤5Mpa should belong to mesolow；Consider also can be divided into two classes by hole sealing depth, envelope depth≤2m should belong to superficial part sealing of hole, Feng Shen
＞ 2m should belong to deep sealing of hole.Superficial part sealing of hole hydraulic pressure is generally mesolow, and such as grouting for water plugging is pumped about 0.3～2Mpa, breaking surrounding rock solidification fluid injection pump pressure
About 5Mpa, moistening coal seam dust-proof pump pressure ＜ 5Mpa etc.；Deep sealing of hole hydraulic pressure is generally high pressure, and such as coal-bed flooding erosion control protrusion-dispelling is pumped 10～30Mpa,
Coal seam hydraulic fracture protrusion-dispelling pump pressure ＞ 20Mpa etc..Prior art superficial part sealing of hole uses rubber hole packer or quick-hardening cement.Rubber hole packer is using solid
The frictional force that the elasticity of body rubber produces in hole wall carries out the device of sealing of hole, and it, to irregular rough and uneven in surface coal hole wall bad adaptability, tends to occur Lou
Liquid, need to have inflation or filling device, and cost is very high, and application is restricted.Quick-hardening cement is to be with Portland cement or portland slag cement
Base material, is doped with the rapid hardening hydraulic cementing materials that additive is made, and cementing strength is larger, and construction waiting time is shorter, but between hole wall and liquid pipe
Narrow and small annular space feeding tamping difficult, deep sealing of hole can not be used for.Prior art deep sealing of hole uses polyurethane (PU) foam plasticss or water
Mudstone sealing of hole.PU foam plasticss hole sealing structure is made up of the stifled liquid section at two ends and middle pumping double-component liquid material section, and stifled liquid section is by towelling circumvolution PU
Feed liquid forms, and forms foam plasticss annulated column, annulated column long ＞ 8m after feed liquid solidification between boring and water injection pipe.PU foam plasticss annulated column external boundary and rock
The adhesion shearing strength of coal hole wall is low, and porous body easily permeates, and resistance to compression impermeability is low, construction waiting time longer (＞ 8h), operation need manual,
Pumping two procedures, use cost is high.Behavior of Hardened Cement Paste sealing of hole body is also made up of the stifled slurry section and middle pumping cement mortar section at two ends, blocks up slurry section by patent
PU foaming bag described in 200710098325.8 or towelling circumvolution PU feed liquid or cement mortar cloth bag formation, cement mortar is patent
Cement material described in ZL200810019493.8 or the slurry of other cement admixture, Behavior of Hardened Cement Paste annulated column long ＞ 8m.Due to Behavior of Hardened Cement Paste and rock coal borer hole wall
Bond comes from the less intermolecular force of active force (Van der Waals force or hydrogen bond force etc.), adds that cement softness colloid is still within construction waiting time
It is in solidification intensity and increase the starting stage, so the external boundary of cement softness annulated column is very low with the cementing shearing strength of rock coal hole wall, i.e. ability resistant to pressure
Very low；Soft cement annulated column in the solidification starting stage is porous body again, and impermeability is also low, and (infiltration coefficient differs from 6 quantity compared with set cement
Level)；Also has construction waiting time length (general ＞ 2d), operation needs manual, pumping two procedures.In a word, resistance to compression impermeability is low, waiting of constructing
Time length and multi-process handling is three common problems of prior art pressure fluid sealing of hole.
Content of the invention
Need for pressure fluid in closure rock coal bed drilling, provide that a kind of short envelope body, resistance to compression impermeability are strong, construction waiting time is short, manual grasp
Make resin hole packer convenient, that use cost is low.It is divided into plain edition (I) and fast curable type (II) by construction waiting time, plain edition is applied to be applied
Work waiting time ＞ 6h, fast curable type is applied to construction waiting time 0.5～6h.
Medium-sized feature is：1 bonding rock coal wall member is the epoxy adhesive sealing subpackage by proportioning, and physical and mechanical property requires conformance with standard
The 5th article of JC887-2001；2 components applying glue laminated on rock coal hole wall are dual-component polyurethane extender, cream time ＞ 2min, expansion rate ＞
400%；3 have water resistant concurrently to ooze, send the mounting structure of hole carrier be the composite geo-membrane bag having intermediate isolating for smearing outward the double-component of subpackage 2 in 1,
Bag long two ends coated high density polyethylene (HDPE) (HDPE) film bar simultaneously has two detached HDPE film truncated cones, composite geo-membrane, HDPE bar film and HDPE
Truncated cone film physical and mechanical property requires the 4th article of conformance with standard GB/T17642-1998.
The feature of II type is：1 bonding rock coal wall member presses, for double-component, the unsaturated polyester (UP) adhesive that proportioning seals subpackage, and physical and mechanical property will
Seek the 6th article of conformance with standard JC/T989-2006；2 glue laminated is applied components on rock coal hole wall is dual-component polyurethane extender, cream time 1.5～
4min, expansion rate ＞ 400%；3 have water resistant concurrently to ooze, send the mounting structure of hole carrier be to have intermediate isolating for smearing outward the double-component of subpackage 2 in 1
Composite geo-membrane bag, composite geo-membrane, HDPE article of film and HDPE truncated cone film physical and mechanical property require conformance with standard GB/T17642-1998 the
Article 4,.
Envelope body structure：After predetermined position in boring sent into by bag 3, in bag, polyurethane extender expands, and the paste glue laminated of bag outer surface is spread on hole wall,
Material forms solid-state sealing of hole ring cylinder through gel solidification, and the structure of sealing of hole ring cylinder is divided into three components, sees Fig. 1.(1) resist fluids pressure member
Structural film adhesive for external boundary；(2) compressive resistance fluid permeability component is three layers of waterproof HDPE film and the PU expander of composite construction；(3) resist
The connecting elements pressing impervious component is glue infiltration building layer of cloth.
Material and construction featuress：(1) strengthening of resist fluids pressure texture part.Sealing of hole annulated column external boundary is that envelope body bears stream with the bonding plane of rock coal hole wall
The constraint bearing of body pressure effect, the position that is, shearing force is concentrated.The present invention is used the application specific architecture glue of bonding stone material and steel force part as anti-current
Body pressure member, because on the one hand it is the cohesive material using chemical bond force as bonding main contributions, chemical bond force is big one or two than intermolecular force
The individual order of magnitude, on the other hand it is relatively short cohesive material hardening time, has been in the later stage of solidification process, cohesive force to construction waiting time
Close to maximum.And the cohesive material that prior art uses and the cementation of stone material are mostly derived from intermolecular active force (Van der Waals force or hydrogen bond force
Deng), little one or two order of magnitude than chemical bond force；On the other hand, the complete setting time of cement is 28d, is in only soft to applying Behavior of Hardened Cement Paste of lower waiting time
Soft solid state, has just been in solidification initial stage, bond very little.(2) water-resisting property of compressive resistance fluid permeability component.Material permeability depends primarily on
Porosity.The present invention uses three layers of waterproof HDPE film and PU expander composite structure impervious, and wherein infiltration coefficient is 10-11~-13cm/s
HDPE film belong to non-porous water proof material, although PU expander is porous material, from encrypting the impervious and closely knit consideration of moulding, PU in bag
Material is about 200% dress weight, big 4 times about of density ratio prior art PU foam plastic density by expansion rate in hole.To construction waiting time, existing
Technologic material is all porous material, and wherein PU foam plasticss seal 1/4 that body density is about PU expansion body opening Midst density, the infiltration of flexible body Behavior of Hardened Cement Paste
Big 6 orders of magnitude of coefficient ratio complete solidified water mudstone.(3) selection of II type rapid hardening structure glue and suitable cream time, gel time PU extender
Preparation.For the requirement of engineering that construction waiting time is short, the selection of II type rapid hardening structure glue of the present invention achieves the early strong of envelope pressure component；PU is swollen
Swollen dose of preparation meets cream time and is slightly less than to be done the time at the beginning of structure glue, gel time be slightly larger than the dry time at the beginning of structure glue it is achieved that smoothly send hole and
Deposited glue.This 2 points deep sealing of holes solving the problems, such as short construction waiting time.
Beneficial effect：The beneficial effect of hole packer of the present invention embodies a concentrated reflection of oozes ability in the envelope pressure energy power of unit envelope body length and envelope.By simulation test
Determine the present invention and prior art unit seals the envelope pressure energy power of body length and envelope oozes ability, and it is contrasted.
Sealing of hole annulated column is that uniform Fluid pressure effect is born in one end, and the other end is the hanging pillar of free end, and the shearing force of external boundary is equal to fluid pressure and brill
Hole sectional area is long-pending.If shearing force is uniform on shear surface, then the expression formula of sealing of hole annulated column resist fluids pressure ability is：
σ in formula-by envelope fluid maximum pressure (MPa), [τ]-sealing of hole annulated column outer boundary adhesive shear strength (MPa), L- sealing of hole annulated column length (m), R
Boring radius (m).For a concrete sealing of hole annulated column, dimensionless number 2L/R is constant, and therefore, [τ] is sealing of hole annulated column resist fluids pressure ability
Sole indicator.According to Darcy's law, the expression formula of sealing of hole annulated column compressive resistance fluid neuron network amount is：
Q- sealing of hole annulated column seepage discharge (m in formula3/ h), K- sealing of hole annulated column infiltration coefficient (m/s), the same to formula (1) of other symbolic significance.For a concrete envelope
Orifice ring post, ratio 1.13 × 106σR2/ L is constant, and therefore K is the sole indicator of sealing of hole annulated column compressive resistance fluid neuron network amount.
Measure [τ] and the K value of the present invention and prior art each pore self-sealing annulated column using simulation experiment, and then converted their envelope by formula (1) (2)
Pressure energy power and envelope ooze ability.Analogue experiment installation is shown in Fig. 2, the long 35cm of borehole simulation steel pipe, internal diameter 6cm；Water filling pipe range 25cm, external diameter 2.7cm；
Infiltration receives the long 20cm of steel pipe, internal diameter 6cm；The sealing long 20cm of steel compression leg；External diameter 5.97cm；Sealing of hole annulated column length 10～12cm；Pressurized water is long
23～25cm.I type of the present invention and prior art PU foam plasticss sealing of hole annulated column curing time (age) in borehole simulation steel pipe be respectively 4h,
8h and 24h, II type sealing of hole annulated column curing time 0.5h of the present invention, prior art Behavior of Hardened Cement Paste sealing of hole annulated column curing time 48h, care environments temperature 23
°±2°.Test quantity every kind of sealing of hole each age of annulated column tests 3 pieces, takes its meansigma methods as measurement result.Sealing of hole annulated column, Water hydraulic static pressure loading
All take from prototype (engineering is in kind), accomplish completely similar.In order to solve the Similar Problems of borehole simulation steel pipe and prototype rock coal hole, carry out first
Stone plate-stone material version and steel plate-steel plate gluing connect, cementing and PU foam adhesion compression shear strength test, the maintenance of testpieces cohesive material
Time is 48 hours.Compression shear strength result of the test connects steel-steel 18.4Mpa, stone material-stone material 17.0Mpa for gluing；Cementing steel-steel
0.68Mpa, stone material-stone material 1.36Mpa；PU foam adheres to steel-steel 0.96Mpa, stone material-stone material 0.59Mpa.Show that prototype is sheared with model
The ratio chi of intensity is respectively gluing access n=17.0/18.4=0.92, cementing λ n=1.36/0.68=2, and PU foam adheres to λ
N=0.59/0.96=0.61.
Test result calculates model [τ] by formula (1), then calculates prototype [τ] n=λ n [τ] than chi by force by cutting, and result is listed in table 1.Rock coal in prototype
In hole wall and model, steel pipe walls are all solid wall surface, and two mobile phases answer boundary property identical, meet boundary condition similar.The survey of sealing of hole annulated column seepage flow
Test result calculates to obtain corresponding K value, as the K value of prototype by formula (2), and result is listed in table 1.
Table 1 sealing of hole annulated column external boundary shearing strength and infiltration coefficient test result
Test result shows, compared with prior art unit length sealing of hole annulated column, the present invention seals body construction waiting time 4h, 8h, 24h to the present invention
Resist fluids pressure capability is 35 times, 46 times, 37 times that PU foam seals body respectively；Be construction waiting time 48h Behavior of Hardened Cement Paste seal 11 times of body,
20 times, 23 times, compressive resistance fluid permeability ability is 26 times, 18 times, 5 times that PU foam seals body respectively, is construction waiting time 48h cement
Stone seals 2.9 times, 4.6 times, 4.7 times of body.Hole packer of the present invention seals body effective length 0.37m, I type construction waiting time 8h envelope pressure energy power 31Mpa
(bore diameter 9.5cm)～53Mpa (bore diameter 5.5cm), infiltration coefficient 1.3 × 10-7m/s；II type construction waiting time 0.5h envelope pressure energy
Power 15Mpa (bore diameter 12.5cm)～24Mpa (bore diameter 7.5cm), infiltration coefficient 2.5 × 10-7m/s.
Advantage：(1) envelope body is short, and it is strong that envelope press seal oozes ability.Hole packer of the present invention seals body effective length 0.37m, construction waiting time 8h deep envelope pressure
Ability 31～53Mpa, infiltration coefficient 1.3 × 10-7M/s, envelope body length is about 1/22 that prior art seals body length (＞ 8m), unit Feng Tichang
Degree envelope pressure energy power and envelope ooze 46 times and 18 times that ability is prior art respectively.(2) construction waiting time is short, can carry out superficial part or deep sealing of hole.
II type construction waiting time 30min of the present invention, and deep sealing of hole can be carried out.Prior art quick-hardening cement can be constructed waiting time 30min sealing of hole, but
It is unable to deep sealing of hole；The construction waiting time of other envelope bodies is longer than 8h.(3) manual operations is convenient and easy.Hole packer of the present invention is by 2～3 staff
Work operates, operating time about 4min.Prior art deep sealing of hole needs manual and liquid pump two procedure operation, operating time about ＞ 10min.(4) make
Use low cost.Hole packer material of the present invention weighs about 1000～1500g, is 1/3～1/4, the Liang Zhedan that PU foam Feng Tixu material weighs about 3500～6000g
Quite, that is, use cost saves more than 65% than prior art to valency；Rubber hole packer cost is higher.
Brief description
Fig. 1 is resin hole packer structure chart, Fig. 2 sealing of hole aptitude tests structure drawing of device
Specific embodiment
I type operating procedure：2～3 people's manual operationss.Take one section of liquid injection pipe, two HDPE truncated cone major parts are inserted in from liquid injection pipe two ends respectively；Beat
Opening structure poly-bag intermediate isolating fully rubbing is held more than 30 times, and part-structure glue is put in two HDPE truncated cones on liquid injection pipe tear structure poly-bag
Between the long 40cm in predetermined sealing of hole position at；Open composite geo-membrane bag intermediate isolating quickly rubbing to hold about 30 times, the composite geo-membrane bag after holding will be rubbed
Two ends HDPE film bar adhesive tape covers and is bundled at liquid injection pipe daub；Apply daub in composite geo-membrane bagging length range, by two HDPE truncated cones
Sliding is enclosed within composite geo-membrane bag two ends blend compounds band and bundlees truncated cone microcephaly position.Afterwards, a little structure is smeared at joint coin silk in manual heat crossover side
Glue, until send hole sealing bag to hole sealing depth.Just bundled with adhesive tape before end liquid injection pipe arranges an adapter and rubbed the PU holding when sending hole
Aluminium plastic membrane bag, its effect is to cut stifled infiltration and support liquid injection pipe.
Hold composite geo-membrane bag and start it is allowed to operating time 6min from rubbing.
II type operating procedure：2 people's manual operationss.Take one section of liquid injection pipe, two HDPE truncated cone major parts are inserted in from liquid injection pipe two ends respectively；Open
Rapid hardening structure poly-bag intermediate isolating fully rubbing is held more than 30 times, tear poly-bag part glue is put on pre- in the middle of two HDPE truncated cones on liquid injection pipe
Determine at the long 40cm in sealing of hole position；Open composite geo-membrane bag intermediate isolating quickly rubbing to hold 30 times, the composite geo-membrane bag two ends HDPE after holding will be rubbed
Film bar adhesive tape covers and is bundled at liquid injection pipe daub；Apply daub in composite geo-membrane bagging length range, two HDPE truncated cone slidings are enclosed within multiple
Close geomembrane bag two ends blend compounds band and bundle truncated cone microcephaly position.Afterwards, a little structure glue is smeared at joint coin silk in manual heat crossover side, until sending
Hole sealing bag is to hole sealing depth.
Hold composite geo-membrane bag and start it is allowed to operating time 4min from rubbing.
Embodiment 1：Coal seam high pressure water injection prevention bump and coal and gas prominent.Bore diameter 6.5cm, water filling pipe diameter 2.7cm, plugman
Make pressure 15Mpa, hole sealing depth 9m, construct waiting time 8h.Using I type hole packer sealing of hole of the present invention, the aluminum plastic film bag of intermediate isolating is by joining
Ratio 1: 1 subpackage epoxy adhesive 300g, long 45cm width 22cm composite geo-membrane bag subpackage PU extender double-component 300g of intermediate isolating, in
Between isolation aluminum plastic film support pouches subpackage PU extender double-component 200g, by specific embodiment operating process operation, actual operating time 4min,
Feng Tichang 0.37m.Using polyurethane foam sealing of hole, material weight 4000g, 3 people are manual, the operation of hydraulic pump two procedure, operating time 10min.Knot
Fruit is that both compare hole packer of the present invention and save artificial 2 people, material-saving and material cost 80%.
Embodiment 2：Coal seam high pressure water injection prevention bump and coal and gas prominent.Bore diameter 5.5cm, water filling pipe diameter 2.7cm, plugman
Make pressure 18Mpa, hole sealing depth 9m, construct waiting time 8h.Using I type hole packer sealing of hole of the present invention, the aluminum plastic film bag of intermediate isolating is by joining
Ratio 1: 1 subpackage epoxy adhesive 240g, long 45cm width 19cm composite geo-membrane bag subpackage PU extender double-component 240g of intermediate isolating, in
Between isolation aluminum plastic film support pouches subpackage PU extender double-component 200g, by specific embodiment operating process operation, actual operating time 4min,
Feng Tichang 0.37m.Using polyurethane foam sealing of hole, material weight 3200g, 3 people are manual, the operation of hydraulic pump two procedure, operating time 10min.Knot
Fruit is that both compare hole packer of the present invention and save artificial 2 people, material-saving and material cost 80%.
Claims (1)
1. during a kind of closure coal rock layer is holed, the hole packer of pressure fluid, is divided into plain edition (I) and fast curable type (II) by construction waiting time,
Plain edition is applied to construction waiting time ＞ 6h, and fast curable type is applied to construction waiting time 0.5～6h, it is characterized in that：Hole packer
Epoxy adhesive or the unsaturated polyester (UP) adhesive that double-component is sealed subpackage by proportioning is applied, the built-in double-component of hole packer is gathered outside surface
Urethane extender, I type cream time ＞ 2min, II type cream time 1.5～4min, expansion rate ＞ 400%, hole packer table
Smear double-component outside face to gather with the built-in double-component of hole packer by the epoxy adhesive of proportioning sealing subpackage or unsaturated polyester (UP) adhesive
There is the composite geo-membrane bag of isolation, the long two ends of bag coated high density polyethylene (HDPE) (HDPE) film bar is simultaneously standby between urethane extender
There are two detached HDPE film truncated cones, composite geo-membrane, HDPE bar film and HDPE truncated cone film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510491408.8A CN106437603B (en) | 2015-08-09 | 2015-08-09 | Resin hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510491408.8A CN106437603B (en) | 2015-08-09 | 2015-08-09 | Resin hole packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437603A true CN106437603A (en) | 2017-02-22 |
| CN106437603B CN106437603B (en) | 2018-11-02 |
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ID=58092911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510491408.8A Active CN106437603B (en) | 2015-08-09 | 2015-08-09 | Resin hole packer |
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| Country | Link |
|---|---|
| CN (1) | CN106437603B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339043A (en) * | 2021-07-05 | 2021-09-03 | 山东科技大学 | Uniform water injection disaster prevention method for high-impact-tendency coal seam |
| CN114673469A (en) * | 2022-03-06 | 2022-06-28 | 辽宁兰特科技发展有限公司 | Semi-overlapping sleeve bag type gas drilling and sealing device |
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| CN113339043B (en) * | 2021-07-05 | 2022-04-08 | 山东科技大学 | Uniform water injection disaster prevention method for high-impact-tendency coal seam |
| CN114673469A (en) * | 2022-03-06 | 2022-06-28 | 辽宁兰特科技发展有限公司 | Semi-overlapping sleeve bag type gas drilling and sealing device |
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|---|---|
| CN106437603B (en) | 2018-11-02 |
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