CN106050187A - Woven elastic jig type hole packer - Google Patents
Woven elastic jig type hole packer Download PDFInfo
- Publication number
- CN106050187A CN106050187A CN201610627689.XA CN201610627689A CN106050187A CN 106050187 A CN106050187 A CN 106050187A CN 201610627689 A CN201610627689 A CN 201610627689A CN 106050187 A CN106050187 A CN 106050187A
- Authority
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- China
- Prior art keywords
- hole
- sealing
- fetalism
- hole set
- packer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002002 slurry Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 104
- 238000005266 casting Methods 0.000 claims description 23
- 239000011440 grout Substances 0.000 claims description 18
- 210000001503 joint Anatomy 0.000 claims description 16
- 238000009954 braiding Methods 0.000 claims description 15
- 238000007569 slipcasting Methods 0.000 claims description 14
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 5
- 238000009958 sewing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 10
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 7
- 238000009940 knitting Methods 0.000 abstract 1
- 238000009941 weaving Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 4
- 210000001161 mammalian embryo Anatomy 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 241000167854 Bourreria succulenta Species 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a woven elastic jig type hole packer which comprises a jig type hole packing sleeve and a flexible grouting interface. The flexible grouting interface is communicated with a hole packing cavity of the hole packing sleeve, the flexible grouting interface is composed of a grouting connection pipe and a grouting head with a cross section in a shape of a flat pipe, the grouting head is located at the front end of the grouting connection pipe, and a reversal stopping structure is arranged on the inner wall of the grouting head. The woven elastic jig type hole packer is simple in structure and low in cost, the inner layer and the outer layer of the hole packer can respectively expand inwards and outwards through grouting towards the hole packing cavity, a packing effect is good, and the adaptability is good. In addition, the hole packing sleeve body is formed through weaving of a double-rib circular-knitting process, the elasticity is good, the expansion rate is high, pressure resistance is high, micro-pore closing prevention treatment is conducted on two ends of the packing sleeve body, grouted slurry leakage is prevented, and the safety is high.
Description
Technical field
The present invention relates to a kind of hole packer, particularly relate to the elastic fetalism hole packer of a kind of braiding.
Background technology
In process of coal mining, Gas Outburst is mine safety accidents to occur and threatens the main danger of Safety of Coal Mine Production
Evil.Along with the increase of the pit mining degree of depth, coal-bed gas pressure is gradually increased, in order to ensure safety in production and protection environment, coal
Ore deposit pick, mining face commonly used rib boring, the new technology of Gas pre-drainage, driven new bore process, hole-sealing technology
And the research and development of equipment.Hole-sealing technology and equipment mainly have following several at present:
1, cement mortar plugging method: advantage is preferable at petrosal foramen or hard coal seam effect；Shortcoming is for soft seam poor effect, envelope
Incessantly soft seam boring crack around, block section concrete column is unfavorable to follow-up comprehensive mining machinery equalization.
2, polyurethane foam method of pore sealing: sealing of hole operation complexity, polyurethane foam is under the crustal stress effect of coal seam, and the later stage shrinks
Seriously, produce gas leakage and affect gas extraction concentration and utilization rate.
3, steel wire caoutchouc elasticity tire stopper: advantage is still may be used coal seam plugging effect.Shortcoming is expensive, to cherry coal
The adaptability of layer collapse hole deformation is not strong, needs regular replenishment pressure.
4, cone shaped elastic glue pillar hole packer: advantage is to reuse.Shortcoming is to boring aperture size and collapse hole
The adaptability of deformation is very poor, and sealing quality cannot ensure.
5, cloth bag bellows fluid filling hole sealing device: advantage is low price, it is adaptable to soft, hard coal seam.Shortcoming is that canvas bag is pressure
The highest (sealing of hole pressure is the highest, the best to cracks in coal seam plugging effect), cloth bag folds position can produce seepage.
Summary of the invention
The defect existed for prior art of the present invention and deficiency, it is provided that a kind of sealing of hole is simple to operate, plugging effect is good
Good, cheap and adaptable elastic fetalism hole packer of braiding and preparation method thereof and method for sealing.
For achieving the above object, the technical solution adopted in the present invention is: the elastic fetalism hole packer of a kind of braiding, including tire
Type sealing of hole set and flexible grout joint, the sealing of hole chamber that described flexible grout joint overlaps with described sealing of hole connects, and this flexible grout connects
Head is made up of the casting head that slip casting adapter and cross section are flat tube shape, and described casting head is positioned at slip casting adapter front end, on its inwall
It is provided with backstop structure.
Further, described casting head outer sheath is equipped with flat spring.
Further, the latter half of outer wall of described casting head being fixed with discoid stator, this filling adaptor passes through institute
State stator to be fixed on sealing of hole and put.
Further, described sealing of hole set includes cylindric sealing of hole set body, one end of described cylindric sealing of hole set body
It is pulled to the other end inside it or outside it, and two end interfaces are sewed up formation fetalism sealing of hole set, sew up the sealing of hole set after port
Body forms internal layer and the outer layer of sealing of hole set, and it is sealing of hole chamber that sealing of hole overlaps the closing cavity in the middle of inside and outside layer, described sealing of hole set body
Two ends are sewed up interface and are adjusted to sealing of hole set internal layer.
Preferably, described sealing of hole set body uses high-strength line to compile craft woven through double rib circle and forms.
Preferably, described sealing of hole set two ends carry out micropore sealing treatment.
The invention has the beneficial effects as follows: 1, the present invention weaves elastic fetalism hole packer and overlapped by fetalism sealing of hole and flexible grout connects
Head is constituted, and simple in construction is with low cost, by making the internal layer of hole packer and outer layer to sealing of hole intracavity slip casting respectively inwards, outward
Both direction expands, and plugging effect is good, and adaptability is high, and sealing of hole set body uses the round craft woven of compiling of double rib to be formed, bullet
Property good, expansion rate height big, pressure, and its two ends carry out anti-micropore sealing treatment, prevent injection slurry seepage, safety is high；
2, the casting head inwall of the present invention is provided with backstop structure, prevents injection slurry from flowing backwards, it is to avoid occur returning slurry after filling serosity
Phenomenon, improves job security；
3, to weave the manufacture method of elastic fetalism hole packer simple for the present invention, it is simple to makes, saves cost of manufacture；
4, to weave the sealing of hole of elastic fetalism hole packer simple to operate for the present invention, it is easy to construction, the sealing of hole operating time is short, saves manpower
Cost, additionally the present invention weaves elastic fetalism hole packer and is applicable not only to gas discharge in mine engineering, it may also be used for other engineering
Boring needs to intubate the occasion that sealing of hole is fixing, and range is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention weaves elastic fetalism hole packer；
Fig. 2 is the structure for amplifying schematic diagram of A in Fig. 1；
Fig. 3 is the structural representation that the present invention weaves the sealing of hole set of elastic fetalism hole packer；
Fig. 4 is the structural representation that the present invention weaves the flexible grout joint of elastic fetalism hole packer；
Fig. 5 is the flat spring structural representation that the present invention weaves elastic fetalism hole packer；
Fig. 6 is the sealing of hole view that the present invention weaves elastic fetalism hole packer.
The meaning that in figure, label represents is: 1, Grouting Pipe, 2, antistatic gas drainage pipe, 3, flexible grout joint, 4, even
Connect hole, 5, fish gill-like backstop structure, 6, flat spring, 7, the elastic fetalism sealing of hole set of braiding, 8, sealing of hole set body two end interface, 9, micro-
Hole blind end, 10, stator；Wherein, 301, slip casting adapter, 302, casting head.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is described in further detail by detailed description of the invention:
Embodiment 1: seeing Fig. 1 to Fig. 5, the elastic fetalism hole packer of a kind of braiding, including fetalism sealing of hole set 7 and flexible grout joint
3, described flexible grout joint 3 connects with the sealing of hole chamber of described sealing of hole set 7, and this flexible grout joint 3 is by slip casting adapter 301 and horizontal stroke
Cross section is that the casting head 302 of flat tube shape is constituted, and described slip casting adapter 301 and casting head 302 are by injection moulding integrated molding, described note
Slurry 302 is positioned at slip casting adapter 301 front end, and its inwall is provided with backstop structure 5, and described backstop structure is fish gill-like backstop structure
(as shown in Figures 2 and 3).Described sealing of hole set two ends carry out micropore sealing treatment and form micropore blind end 9, micropore sealing treatment ratio
As impregnation water-proofing treatment or spray treatment can be carried out, as long as the technique being possible to prevent sealing of hole to overlap 7 two ends infiltrations can be adopted
With, this sealing of hole set 7 is for including cylindric sealing of hole set body, and described sealing of hole set includes cylindric sealing of hole set body, described cylinder
One end of shape sealing of hole set body is pulled to the other end inside it or outside it, and two end interfaces are sewed up formation fetalism sealing of hole set,
Sewing up the sealing of hole set body after port and form internal layer and the outer layer of sealing of hole set, it is envelope that sealing of hole overlaps the closing cavity in the middle of inside and outside layer
Vestibule, described sealing of hole set body two ends are sewed up interface and are adjusted to sealing of hole set internal layer.Described sealing of hole set body uses high-strength line double
Rib-loop circle is compiled craft woven and is formed, and through fire-retardant, antistatic treatment, uses the sealing of hole set body that above-mentioned material becomes with craft woven
Diameter may be expanded to 2.5 to 3 times of green diameter, pressure bring up to 2 to 3 MPas.Above-mentioned high-strength line can use automobile
Tire cord fabric embryo line and high-strength nylon embryo line etc..
Embodiment 2: embodiment 2 is essentially identical with embodiment 1 structure, and something in common does not repeats, except for the difference that: in order to improve
Fastness in place of filling adaptor 3 and sealing of hole set connection, the described latter half of outer wall of casting head 302 is fixed with discoid fixing
Sheet 10, this filling adaptor is fixed on sealing of hole set 7 by described stator 10, and described stator 10 is by by hot melt adhesion method
The discoid stator of filling adaptor is fixed on sealing of hole set body, it is possible to reinforce further with lockstitch.Certainly, in order to
Simplified flowsheet, it is also possible to casting head 302, slip casting adapter 301 and discoid stator 10 are passed through injection moulding integrated molding.
Embodiment 3: see 1 and 5, in order to improve the counterflow-preventing effect of flexible grout joint 3 and self-enclosed effect, described
Casting head 302 outer sheath is clamped on casting head 302 outer wall equipped with flat spring 6, described flat spring 6.Described flexible grout joint 3
Form self-enclosed check valve-type elasticity filling adaptor with flat spring 6 combination, improve the reliability of the present embodiment work.
The present invention is woven elastic fetalism hole packer and is made by following manufacture method, particularly as follows:
Step 1: braiding sealing of hole set body: use high intensity line (such as automobile tire cord fabric embryo line or high-strength nylon embryo line)
Compile craft woven through double rib circle and become cylindric sealing of hole set body；
Step 2: filling adaptor is fixed on sealing of hole set body: near one end on the sealing of hole set body that will obtain in step 1
Casting head, as the connecting hole of connection flexible grout joint, is penetrated sealing of hole intracavity by connecting hole, passes through hot melt by position punching
Casting head is fixed on sealing of hole set body by bonding method；
Step 3: make fetalism sealing of hole set: the sealing of hole of the fixing upper flexible grout joint obtained in step 2 is overlapped one end of body
It is pulled to the other end inside it or outside it, two end interfaces is sewed up and forms the elastic fetalism sealing of hole set of braiding；
Step 4: sealing of hole is overlapped two ends and carries out water-impervious process；
Step 5: packaging hole packer: first, the hole packer obtained in step 4 is sleeved on antistatic gas drainage pipe；Then,
Filling adaptor is sewed up with hole packer body two ends and is pressed between hole packer and gas drainage pipe together with interface, fixed；?
After, cover whole hole packer and gas drainage pipe with antistatic shrink-packaging's film, carry out heat sealed package.
Being additionally provided with stator 10 on described casting head outer wall, the part before this casting head is positioned at described stator is passed through
Connecting hole is sleeved in the sealing of hole chamber of sealing of hole set, and described stator is bonded on hole packer body by hot melt adhesion method, and leads to
Cross lockstitch and carry out sewn reinforcement.It is set with flat spring on described casting head outer wall, set is loaded onto the filling adaptor of flat spring
It is secured together with sealing of hole set body, particularly as follows: casting head first half set is loaded onto the flat spring that shape is matched, described
Flat spring is clamped on casting head outer wall, and flat spring is sleeved on together with casting head the sealing of hole chamber of sealing of hole set by connecting hole
In, and be fixed on sealing of hole set body by hot melt adhesion method.
In step 3, sewing up the sealing of hole set body after port and form internal layer and the outer layer of sealing of hole set, sealing of hole overlaps in inside and outside layer
Between closing cavity be sealing of hole chamber.
Using the present invention to weave the method for sealing of elastic fetalism hole packer, step is as follows:
Step 1: Grouting Pipe is connected in the slip casting adapter of flexible grout joint, whole hole packer is inserted in gas extraction hole
To the technological design degree of depth, injection slurry injecting through Grouting Pipe and filling adaptor with grouting pump the sealing of hole intracavity of sealing of hole set, slip casting is arrived
Set pressure and after pressurize a few minutes, terminate slip casting, extract Grouting Pipe out；
Step 2: after slip casting terminates, the pressure in flexible grout joint declines, and in flat spring and sealing of hole overlap, slurry pressure is double
Under recast, flexible grout joint seal itself, prevention slurry reflux, keep the pressure of braiding elastic fetalism sealing of hole set intracavity,
Until sealing of hole serosity microdilatancy solidify (as shown in Figure 6), complete sealing of hole operation.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by aforesaid way
Restriction, as long as have employed the method design of the present invention and the improvement of various unsubstantialities that technical scheme is carried out, or without changing
Enter and design and the technical scheme of the present invention are directly applied to other occasion, all within protection scope of the present invention.
Claims (6)
1. the elastic fetalism hole packer of braiding, it is characterised in that: include fetalism sealing of hole set and flexible grout joint, described flexibility
The sealing of hole chamber that filling adaptor overlaps with described sealing of hole connects, and this flexible grout joint is the note of flat tube shape by slip casting adapter and cross section
Slurry head is constituted, and described casting head is positioned at slip casting adapter front end, and its inwall is provided with backstop structure.
The elastic fetalism hole packer of braiding the most according to claim 1, it is characterised in that: described casting head outer sheath equipped with
Flat spring.
The elastic fetalism hole packer of braiding the most according to claim 1 and 2, it is characterised in that: described casting head is latter half of
Being fixed with discoid stator on outer wall, this filling adaptor is fixed on sealing of hole by described stator and puts.
The elastic fetalism hole packer of braiding the most according to claim 1, it is characterised in that: described sealing of hole set includes cylindrical shape
Sealing of hole set body, one end of described cylindric sealing of hole set body is pulled to the other end inside it or outside it, and by two end interfaces
Sewing up and form fetalism sealing of hole set, sew up the sealing of hole set body after port and form internal layer and the outer layer of sealing of hole set, sealing of hole overlaps inside and outside layer
Middle closing cavity is sealing of hole chamber, and sealing of hole set body two ends are sewed up interface and adjusted to sealing of hole set internal layer.
The elastic fetalism hole packer of braiding the most according to claim 4, it is characterised in that: described sealing of hole set body uses height
Strong line is compiled craft woven through double rib circle and is formed.
6. according to the braiding elasticity fetalism hole packer described in claim 1 or 4, it is characterised in that: described sealing of hole set two ends are entered
Row micropore sealing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610627689.XA CN106050187B (en) | 2016-08-03 | 2016-08-03 | The elastic fetalism hole packer of braiding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610627689.XA CN106050187B (en) | 2016-08-03 | 2016-08-03 | The elastic fetalism hole packer of braiding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050187A true CN106050187A (en) | 2016-10-26 |
| CN106050187B CN106050187B (en) | 2018-10-12 |
Family
ID=57197397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610627689.XA Expired - Fee Related CN106050187B (en) | 2016-08-03 | 2016-08-03 | The elastic fetalism hole packer of braiding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050187B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138908A (en) * | 2018-10-31 | 2019-01-04 | 徐州中国矿大岩土工程新技术发展有限公司 | A kind of bored grouting inflatable hole packer and its application method |
| CN111456443A (en) * | 2020-05-09 | 2020-07-28 | 中北华宇建筑工程公司 | Be used for assembled structure stair grout equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050126087A1 (en) * | 2001-01-23 | 2005-06-16 | Hayakawa Rubber Company Limited | Manhole structure, flexible water shut off joint for manhole structure and method for installing manhole structure |
| CN103352675A (en) * | 2013-07-01 | 2013-10-16 | 陕西煤业化工技术研究院有限责任公司 | Gas extraction, drilling and sealing device and method |
| CN203335016U (en) * | 2013-06-13 | 2013-12-11 | 平顶山市安泰华矿用安全设备制造有限公司 | Pressure bearing type grouting hole packer with pulp returning prevention device |
| US8636036B2 (en) * | 2010-12-07 | 2014-01-28 | Lmk Technologies, Llc | Apparatus and method for sealing pipes |
| CN204252941U (en) * | 2014-11-14 | 2015-04-08 | 杨卫林 | Mining hole-sealing gas hole packer with pressure |
| CN204729047U (en) * | 2015-05-06 | 2015-10-28 | 河南省瓦安矿用设备有限公司 | A kind of rich water boring pouch slip casting type hole packer |
-
2016
- 2016-08-03 CN CN201610627689.XA patent/CN106050187B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050126087A1 (en) * | 2001-01-23 | 2005-06-16 | Hayakawa Rubber Company Limited | Manhole structure, flexible water shut off joint for manhole structure and method for installing manhole structure |
| US8636036B2 (en) * | 2010-12-07 | 2014-01-28 | Lmk Technologies, Llc | Apparatus and method for sealing pipes |
| CN203335016U (en) * | 2013-06-13 | 2013-12-11 | 平顶山市安泰华矿用安全设备制造有限公司 | Pressure bearing type grouting hole packer with pulp returning prevention device |
| CN103352675A (en) * | 2013-07-01 | 2013-10-16 | 陕西煤业化工技术研究院有限责任公司 | Gas extraction, drilling and sealing device and method |
| CN204252941U (en) * | 2014-11-14 | 2015-04-08 | 杨卫林 | Mining hole-sealing gas hole packer with pressure |
| CN204729047U (en) * | 2015-05-06 | 2015-10-28 | 河南省瓦安矿用设备有限公司 | A kind of rich water boring pouch slip casting type hole packer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138908A (en) * | 2018-10-31 | 2019-01-04 | 徐州中国矿大岩土工程新技术发展有限公司 | A kind of bored grouting inflatable hole packer and its application method |
| CN111456443A (en) * | 2020-05-09 | 2020-07-28 | 中北华宇建筑工程公司 | Be used for assembled structure stair grout equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106050187B (en) | 2018-10-12 |
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Granted publication date: 20181012 Termination date: 20210803 |