CN109372578A - A kind of soft mould of working face corner combines plugging structure and method with hydraulic prop - Google Patents
A kind of soft mould of working face corner combines plugging structure and method with hydraulic prop Download PDFInfo
- Publication number
- CN109372578A CN109372578A CN201811491096.0A CN201811491096A CN109372578A CN 109372578 A CN109372578 A CN 109372578A CN 201811491096 A CN201811491096 A CN 201811491096A CN 109372578 A CN109372578 A CN 109372578A
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- China
- Prior art keywords
- soft mould
- soft
- mould
- working face
- hydraulic prop
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
- E21F17/107—Dams, e.g. for ventilation inflatable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
Abstract
The present invention provides a kind of soft mould of working face corner and combines plugging structure and method with hydraulic prop, in working face corner, hydraulic prop is set, and it is coupled soft mould, pass through the mixing packing material of filled and process and sand, cement, flyash into soft mould, combined type is formed to block, it is characterized in that, reinforcing rib, bolthole is arranged in the soft mould, and it is reserved with iron hoop, injected hole.The soft mould of the present invention is cuboid, size is slightly wider than working sections size, and iron hoop reduces gap by tying up silk for soft mould bundled fixed on coal seam and top plate after filling, increase horizontal and vertical reinforcing rib in soft mould, bearing capacity and intensity are improved, plays styling, there are boltholes, anchor pole and soft intermode install backing plate additional, the problem of bearing capacity for improving soft mould entirety, avoids the occurrence of with pressure increase, soft moding shape, bulging, rupture；The mixing packing material intensity of foam and sand, cement, flyash is preferable, even pore distribution, while airtightness is excellent.
Description
Technical field
The present invention relates to mine corners to block field, and specifically a kind of soft mould of working face corner is combined with hydraulic prop
Plugging structure and method.
Background technique
For corner gas exceeding limit problem, colliery scene also forms some control measures with positive effect at present,
Such as: the interim screen of setting upper corner, the volume of air supply for increasing stope, lower corner setting Anti-air-leakage air partition, install
The special pump drainage gas at upper corner of dedicated pump drainage blower is changed face-airing mode and (is divulged information using descentional ventilation or using type
Gob side entry retaining) etc., though these measures play the effect for reducing gas at upper corner, the gas of upper corner to a certain extent
The accident that transfinites also happens occasionally, and is not solved at all.And the basic reason that gas at upper corner transfinites is goaf air leaking, is adopted
Dead zone Gas is the main determining factor that face gas transfinites.I.e. when Gas Outflow From Worked-out Area is excessive, working face
Upper corner and return gas density just easily transfinite, and only the increase air supply of working face amount of blindness is difficult to fundamentally solve
Certainly, because this may more increase goaf air leaking, and then Gas of the goaf to working face is exacerbated.If once to adopting
Dead zone gas gush management is improper, gently then working face is caused to stop production, and can lead to a series of major accidents such as gas explosion when serious.
Part Coal Mine blocks old man mouthful using dual anti-(the antistatic, fire-retardant) woven bag of pile (inside coaling and slurry mixture),
Gas in old man is separated with working face.And according to gas emission situation, it is equipped with extension guiding air partition and pipe laying draws out methane, keep away
Exempt from Gas Accumulation in Upper-Corner by Pulsed.From practice, this kind of method input cost is excessive.
The method that Part Coal Mine blocks face upper corner angle using air duct fabric, this method are suitable for air way and deform small and be straight
The air way of side shape sets up U-shaped canopy supporting and deformation big air way when blocking frame and covering air duct fabric slightly difficulty.
Summary of the invention
The problem of present invention mainly solves goaf air leakings, and goaf gas to be caused to gush out working face, corner gas exceeding limit,
Have enabling capabilities, reduce security risk, while being that a kind of input cost is lower, use environment requires lower working face corner
Soft mould combines plugging structure and method with hydraulic prop.
To achieve the above object, the invention provides the following technical scheme:
A kind of soft mould of working face corner combines plugging structure and method with hydraulic prop, and monomer liquid is arranged in working face corner
Press pillar, and be coupled soft mould, by the filled and process into soft mould and sand, cement, flyash mixing packing material, shape
It is blocked at combined type, which is characterized in that reinforcing rib, bolthole is arranged in the soft mould, and is reserved with iron hoop, injected hole.
Preferably, it is combined in plugging structure and method in a kind of above-mentioned soft mould of working face corner with hydraulic prop,
The soft mould is cuboid, and size is wider than working sections size.
Preferably, it is combined in plugging structure and method in a kind of above-mentioned soft mould of working face corner with hydraulic prop,
The reinforcing rib is set to each face, and is divided into laterally and longitudinally.
Preferably, it is combined in plugging structure and method in a kind of above-mentioned soft mould of working face corner with hydraulic prop,
The bolthole runs through the soft mould, and anchor pole and soft intermode install backing plate additional.
Preferably, it is combined in plugging structure and method in a kind of above-mentioned soft mould of working face corner with hydraulic prop,
The iron hoop is by tying up silk for soft mould bundled fixed in coal seam, top plate.
Preferably, it is combined in plugging structure and method in a kind of above-mentioned soft mould of working face corner with hydraulic prop,
The mixing packing material ratio are as follows: sand 30%, cement 10%, flyash 20%, foam 40%.
It can be seen via above technical scheme that compared with prior art, structure of the invention is reasonable, by monomer hydraulic branch
Soft mould is installed in binding on column, and into soft mould, the mixing packing material of filling foam, sand, cement, flyash, soft mould is propped up,
It to be close to top plate, coal seam, eliminates gap, there are certain pore structures for mixing packing material, when it is oppressed by external pressure,
Internal pore structure becomes smaller contraction, and gas permeability is deteriorated, i.e., pressure is bigger, and it is better to block obturation effect, adapts to external structure little Cheng
Economic cost is saved in degree variation, and soft mould setting reinforcing rib improves bearing capacity and intensity, and anchor pole and soft intermode are arranged backing plate, mention
High bearing capacity prevents soft moding shape, rupture, not only support action can be played to top plate, but also with good closed closure
Effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is the soft mould perspective view of the present invention；
Fig. 2 attached drawing is the soft mould of the present invention in the face end location drawing；
Fig. 3 attached drawing is side view of the soft mould of the present invention at face end；
Fig. 4 attached drawing is front view of the soft mould of the present invention at face end；
Fig. 5 attached drawing is slip casting operation schematic diagram in the soft mould of mode 1 of the present invention；
Fig. 6 attached drawing is slip casting operation schematic diagram in the soft mould of mode 2 of the present invention.
In conjunction with Fig. 1-6, in which: silk or iron hook, 5 backing plates, 6 hydraulic props, 7 are tied up in 1 coal seam, 2 soft moulds, 3 anchor poles, 4
Bottom plate, 8 hydraulic supports, 9 coal seams, 10 working faces, 11 goafs, 12 drill sites, 13 cement, 14 flyash, 15 gangues, 16 air inlets
Lane, 17 pneumatic hole-sealing pumps, 18 Grouting Pipes, the soft mould wall of 19 concrete, 20 air return lanes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Attached drawing 1-6 is please referred to, is a kind of soft mould of working face corner foam concrete disclosed by the invention and monomer hydraulic branch
The combination plugging structure and method of column, method includes the following steps:
Step 1: coal seam 1 and bottom plate 7 at the tail of place cleaning end end, will be sharp, the broken coal crushing and clearing of protrusion, it is fixed to take
The soft mould 3 of system, injected hole 34 are laid in the flattened region cleaned up towards air way (11,13), and soft mould 3 is close to monomer hydraulic
Pillar 8 and slipping with after is aligned；
Step 2: being climbed at coal seam 1 with ladder, first with tying up a 5(or iron hook) it passes through soft 3 top of mould and reserves iron hoop 31, it will
It is secured firmly on top plate 2, especially the angle of top plate 2 and coal seam 9, soft mould 3 close to top plate 2 and coal seam 1, on to
Under, silk 5 is tied up across soft mould 3 and reserves iron hoop 31, is fixed on coal seam 1, after fixed, anchor pole 4 is taken first to put on a piece of backing plate 6,
Then bolthole 33 is passed through from 10 1 lateral wind lane of goaf (11,13) side, second piece of backing plate 5 is installed, is screwed,
And makes the width between backing plate 6 slightly larger than soft 3 thickness of mould, interspace in advance, be sequentially completed the installation of anchor pole 4, the fixed soft mould 3 of suspension
Period pays attention to keeping soft mould 3 smooth, at no overlap extruding；
Step 3: preparing air driven pump, agitator tank, slip casting pump installation, pneumatic pump steam inlet connect with air hose, and connects pneumatic envelope
Hole pump 14 is connected with dedicated U-shaped card, and the pneumatic hole-sealing pump 14 of trial operation after connection injects a little clear water into agitator tank, is opened
Blender debugs paddle, after paddle regulation size dynamics rotates to be normally；It opens grouting pump and debugs slip casting effect: opening control
System switch, it is that can normally start to carry out slip casting that regulating switch, which opens out clear water just,；
Step 4: preparing explosion-proof type cement foam maker, and a certain amount of clear water is injected into foaming agent solution bucket, starts foaming machine,
All pipelines are moistened, and see whether outlet has clear water outflow, occurs being to work well, according to the proportion, takes quantitative hair
Infusion and water, are configured to foaming agent solution, and the clear water in solution tank is drained, and prepared foaming agent solution, starting hair is added
Bubble machine closes foaming machine when foam occurs in outlet；
Step 5: after foaming machine and pneumatic hole-sealing pump examination 14 are worked well, open blender and grouting pump (blunting of attention is opened,
Not splash out liquid), quantitative water, the filler materials such as cement, flyash and sand are poured into agitator tank, while opening foaming machine
Foam is added into agitator tank, observes after the graduation mark in foaming agent solution bucket reaches designated position and stops that foam is added, pour into
The paddle for wanting high lift that packaging bag is avoided to be rotated when a variety of materials twists in bucket (ratio of water to material<by weight>: water level to stirring
At case fluid level scale, upper end fluid level scale is 1:1, and lower end fluid level scale is 1:1.2, and concentration is moderately deployed as required but water level
Only between two liquid level lines), stirring 3-5 minutes after, observe the mixing liquid of each material and water thick state whether
Reach concentration standard needed for slip casting.
Step 6: after concentration reaches, Grouting Pipe being inserted into the injected hole 34 of soft mould 3, slowly at the uniform velocity opens grouting pump
Control switch starts slip casting, when once grouting cannot by it is soft be molded into full when, be repeated several times and carry out above-mentioned steps five, until soft mould
Note 3 is full；
Step 7: after soft mould 3 is completely filled with by slurries, stopping slip casting, and with tying up, 5 tighten grouting port 34, when there are also surplus for slurries
Grouting Pipe 15 is directed at goaf 10, remaining slurries is all discharged into goaf 10, are then added into agitator tank by Yu Shi
A large amount of clear water rinse grouting pump until grout outlet outflow clear water, to shut total air valve in time after washing machine, and open pressure release
The residual air in pneumatic hole-sealing pump is discharged in valve, could extract U-shaped card after paddle does not turn to empty all remaining residual air and unload
Wind band；
Step 8: with tool by 4 screw tightening of anchor pole of air way (11,13) side until backing plate 6 is close to soft mould 3.
In order to further optimize the above technical scheme, into soft mould slip casting there are two types of mode, one kind be packing material 120,
Blender, grouting pump are stored in drill site 12, are run, and one kind is that packing material material 120 is stored in drill site, blender,
Grouting pump operation in air way (11,13).
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. a kind of soft mould of working face corner combines plugging structure and method with hydraulic prop, monomer is set in working face corner
Hydraulic prop 8, and it is coupled soft mould 3, material is filled by the mixing of the filled and process into soft mould 3 and sand, cement, flyash
Material 120 forms combined type and blocks, which is characterized in that reinforcing rib 32, bolthole 33 is arranged in the soft mould 3, and is reserved with iron hoop
31, injected hole 34.
2. a kind of soft mould of working face corner according to claim 1 combines plugging structure and method with hydraulic prop,
It is characterized in that, the soft mould 3 is cuboid, size is wider than working sections size.
3. a kind of soft mould of working face corner according to claim 1 combines plugging structure and method with hydraulic prop,
It is characterized in that, the reinforcing rib 32 is set to each face, and it is divided into laterally and longitudinally.
4. a kind of soft mould of working face corner according to claim 1 combines plugging structure and method with hydraulic prop,
It is characterized in that, the bolthole 33 runs through the soft mould 3, backing plate 6 is installed between anchor pole 4 and soft mould 3 additional.
5. a kind of soft mould of working face corner according to claim 1 combines plugging structure and method with hydraulic prop,
It is characterized in that, the iron hoop 31 is by tying up silk 5 for soft 3 bundled fixed of mould in coal seam 1, top plate 2.
6. a kind of soft mould of working face corner according to claim 1 combines plugging structure and method with hydraulic prop,
It is characterized in that, 120 ratio of mixing packing material are as follows: sand 30%, cement 10%, flyash 20%, foam 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491096.0A CN109372578A (en) | 2018-12-07 | 2018-12-07 | A kind of soft mould of working face corner combines plugging structure and method with hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491096.0A CN109372578A (en) | 2018-12-07 | 2018-12-07 | A kind of soft mould of working face corner combines plugging structure and method with hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109372578A true CN109372578A (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811491096.0A Pending CN109372578A (en) | 2018-12-07 | 2018-12-07 | A kind of soft mould of working face corner combines plugging structure and method with hydraulic prop |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102484A (en) * | 1996-07-30 | 2000-08-15 | Applied Geodynamics, Inc. | Controlled foam injection method and means for fragmentation of hard compact rock and concrete |
| CN103306725A (en) * | 2013-06-26 | 2013-09-18 | 安徽理工大学 | Flexible airbags for coal working face and method adopting same to block off corners |
| CN103437792A (en) * | 2013-09-13 | 2013-12-11 | 陕西中能煤田有限公司 | Filling sealing device and filling method thereof |
| CN205154251U (en) * | 2015-11-09 | 2016-04-13 | 河南理工大学 | Gentle mould pocket type obsturator mould structure in lane |
| CN106522952A (en) * | 2016-12-26 | 2017-03-22 | 山东科技大学 | Upper corner treatment method for large-dip-angle mining work face |
| CN107448234A (en) * | 2017-08-30 | 2017-12-08 | 陕西煤业化工技术研究院有限责任公司 | A kind of colliery pours closed wall construction method |
-
2018
- 2018-12-07 CN CN201811491096.0A patent/CN109372578A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102484A (en) * | 1996-07-30 | 2000-08-15 | Applied Geodynamics, Inc. | Controlled foam injection method and means for fragmentation of hard compact rock and concrete |
| CN103306725A (en) * | 2013-06-26 | 2013-09-18 | 安徽理工大学 | Flexible airbags for coal working face and method adopting same to block off corners |
| CN103437792A (en) * | 2013-09-13 | 2013-12-11 | 陕西中能煤田有限公司 | Filling sealing device and filling method thereof |
| CN205154251U (en) * | 2015-11-09 | 2016-04-13 | 河南理工大学 | Gentle mould pocket type obsturator mould structure in lane |
| CN106522952A (en) * | 2016-12-26 | 2017-03-22 | 山东科技大学 | Upper corner treatment method for large-dip-angle mining work face |
| CN107448234A (en) * | 2017-08-30 | 2017-12-08 | 陕西煤业化工技术研究院有限责任公司 | A kind of colliery pours closed wall construction method |
Non-Patent Citations (2)
| Title |
|---|
| 程欢;王方田;: "煤与瓦斯突出矿井沿空留巷技术研究", 煤炭科学技术, no. 05 * |
| 郑帅亮;: "柔模浇筑技术在综放工作面沿空留巷中的应用", 山东煤炭科技, no. 10, pages 37 * |
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