CN110295902A - A kind of coal and oil shale remove the method that air duct fabric is laid after face frame with mining face - Google Patents
A kind of coal and oil shale remove the method that air duct fabric is laid after face frame with mining face Download PDFInfo
- Publication number
- CN110295902A CN110295902A CN201910516951.7A CN201910516951A CN110295902A CN 110295902 A CN110295902 A CN 110295902A CN 201910516951 A CN201910516951 A CN 201910516951A CN 110295902 A CN110295902 A CN 110295902A
- Authority
- CN
- China
- Prior art keywords
- air duct
- duct fabric
- face
- net
- coal
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/24—Methods of underground mining; Layouts therefor for oil-bearing deposits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- 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
- E21F17/02—Suspension devices for tubes or the like, e.g. for ventilating ducts
Abstract
It is disclosed by the invention to belong to coal mining technology field, the method that specially a kind of coal and oil shale remove laying air duct fabric after face frame with mining face, the following steps are included: S1: when the advance of the face is to away from stopping adopting line 24m~34m, during working surface production, controlling top plate；S2: when the advance of the face is to away from stopping adopting line 12m~16m, working face starts to spread single layer rhombus net, need to guarantee seamless between the single layer rhombus net and the working face and alice situation；The method that this kind of coal and oil shale remove laying air duct fabric after face frame with mining face, by during restricting in working face lapping, with net plus apply air duct fabric, so that air duct fabric covers entire bracket, effectively isolation goaf is contacted with the external world, it reduces the external world to leak out into goaf, reduces goaf internal oxygen content；Effectively closing work face goaf, increases the residence time of goaf inert gas, effectively slows down the oxidation of goaf coal body, reduces goaf temperature.
Description
Technical field
The present invention relates to coal mining technology field, specially a kind of coal and oil shale are laid after removing face frame with mining face
The method of air duct fabric.
Background technique
Coal mine is the mankind in the region of the mining area exploitation coal resources rich in coal, is generally divided into underground mine and outdoor coal
Mine is typically chosen to underground when coal seam is remote from earth's surface and digs tunnel digging coal, this is underground mine, when coal seam is away from earth's surface
Distance it is close when, be typically chosen directly removing surface soil layer excavate coal, this is open coal mine, China's overwhelming majority coal mine category
In underground mine.
Wherein oil shale is a kind of overburden that mining occurs, and is a kind of high-ash sedimentary rock containing flammable organic matter,
It is more than 40% that the main distinction of it and coal, which is ash content, is that oil content is greater than 3.5% with the culmiferous main distinction.
After coal mining, after coal and its roof and floor to top cause destruction, a large amount of crack, and oil are produced
The larger goaf top plate of shale hardness itself is caving not in time, is caused goaf voidage to increase, is leaked out more serious, to work
Face removes face fire guard and carrys out enormous pressure, easily causes accident that recovery process is made to stop, causes economic loss and hazard to person.
Summary of the invention
The purpose of the present invention is to provide a kind of coal and oil shales, and the method that air duct fabric is laid after face frame is removed with mining face,
It is mentioned above in the background art after coal mining to solve, after coal and its roof and floor to top cause destruction, generate
A large amount of crack, and the larger goaf top plate of oil shale hardness itself is caving not in time, and goaf voidage is caused to increase,
It leaks out more serious, face fire guard is removed to working face and carrys out enormous pressure, easily causes accident that recovery process is made to stop, causes economic damage
Become estranged hazard to person the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of coal and oil shale remove face frame with mining face
The method of air duct fabric is laid afterwards, comprising the following steps:
S1: when the advance of the face is to away from stopping adopting line 24m~34m, during working surface production, will control top plate, prevent
Leak-stopping top；
S2: when the advance of the face is to away from stopping adopting line 12m~16m, working face starts to spread single layer rhombus net, need to guarantee institute
Seamless between single layer rhombus net and the working face and alice situation is stated, rhombus net specification is B × H=10m × 1.2m, is used
Length is greater than the 8%~12% of total laying area；
S3: after paving 1.5 row of monolayer net~2 rows, starting to spread Double-level Reticulated to stopping adopting line, and when upper Double-level Reticulated, first air duct is arranged exhibits
It opens, the surface of the air duct fabric is checked, the position for hole occur need to be repaired, and hole diameter is greater than 4cm~6cm's
It need to be replaced, the top of the air duct fabric is just fixed on the single layer diamond shape using 12 galvanized wire of Ф every 50cm~55cm
Edge off the net, the air duct fabric lap-joint are no less than 30cm~35cm；
S4: the air duct fabric is laid with the two-tier rhombic net after fixing, and the two-tier rhombic net is covered the wind
On cylinder cloth, the air duct fabric surrounding and the air duct fabric lap-joint are consolidated using 12 galvanized wire of Ф every 50cm~60cm
It is fixed, it must be unfolded with the air duct fabric of net laying, surfacing；
S5: top plate lapping lays the air duct fabric and to be connected with coal wall linked network, unit cut net, the air duct fabric or
It tries to stop people from fighting each other and tears net, at the air duct fabric, to mend in time, and couple secured；
S6: before being laid with the two-tier rhombic net every time, the good air duct fabric, then the upper two-tier rhombic net, institute are first laid
It states air duct fabric to fix together with the two-tier rhombic net, air duct fabric described in entire force piece rear and top all standing.
Preferably, the material of the single layer rhombus net and the two-tier rhombic net is mild steel wire.
Preferably, the material of the air duct fabric is that high-strength jewel fiber is made into coating base fabric, the air duct fabric and coal
For the connection type of wall hanging net using bonding, adhesives is high-temperature glue agent.
Preferably, the bending region of the air duct fabric needs benefit to be screwed, it is ensured that the air duct fabric is not produced with covering surface
Raw gap and alice.
Compared with prior art, the beneficial effects of the present invention are: this kind of coal and oil shale apply after removing face frame with mining face
If the method for air duct fabric, by with net plus air duct fabric being applied, so that air duct fabric covers entire branch during restricting in working face lapping
Frame effectively completely cuts off goaf and contacts with the external world, reduces the external world and leak out into goaf, reduce goaf internal oxygen content；Have
Effect closing work face goaf, increases the residence time of goaf inert gas, effectively slows down the oxidation of goaf coal body, reduces
Goaf temperature, solves coal and oil shale work face goaf cranny development, and serious problem of leaking out fundamentally ensure that
Coal and oil shale working face remove face during fire safety.
Detailed description of the invention
Fig. 1 is that schematic diagram is set in air duct fabric of the present invention laying.
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.
The present invention provides a kind of technical solution: a kind of coal and oil shale remove the side that air duct fabric is laid after face frame with mining face
Method, comprising the following steps:
S1: when the advance of the face is to away from stopping adopting line 24m~34m, during working surface production, will control top plate, prevent
Leak-stopping top；
S2: when the advance of the face is to away from stopping adopting line 12m~16m, working face starts to spread single layer rhombus net, need to guarantee single layer water chestnut
Seamless and alice situation between shape net and working face, rhombus net specification are B × H=10m × 1.2m, are greater than total paving using length
If the 8%~12% of area；
S3: after paving 1.5 row of monolayer net~2 rows, starting to spread Double-level Reticulated to stopping adopting line, and when upper Double-level Reticulated, first air duct is arranged exhibits
It opens, the surface of air duct fabric is checked, the position for hole occur need to be repaired, and hole diameter need to be into greater than 4cm~6cm's
Row replacement, the top of air duct fabric is just fixed on single layer rhombus net lower edge, air duct using 12 galvanized wire of Ф every 50cm~55cm
Cloth lap-joint is no less than 30cm~35cm；
S4: air duct fabric is laid with two-tier rhombic net after fixing, and two-tier rhombic net is covered on air duct fabric, air duct fabric surrounding
And air duct fabric lap-joint is fixed using 12 galvanized wire of Ф every 50cm~60cm, must be opened up with the air duct fabric of net laying
It opens, surfacing；
S5: top plate lapping laying air duct fabric will be connected with coal wall linked network, and unit cuts net, air duct fabric or tries to stop people from fighting each other and tears
It at net, air duct fabric, to mend, and couple secured in time；
S6: before being laid with two-tier rhombic net every time, air duct fabric, then upper two-tier rhombic net, air duct fabric and the double-deck water chestnut have first been laid
Shape net is fixed together, entire force piece rear and top all standing air duct fabric；
Wherein, the material of single layer rhombus net and two-tier rhombic net is mild steel wire, and the material of air duct fabric is high-strength polyester glass
Glass fiber is made into coating base fabric, and air duct fabric is Nian Jie with the use of the connection type of coal wall linked network, and adhesives is high-temperature glue agent, wind
The bending region of cylinder cloth needs benefit to be screwed, it is ensured that air duct fabric does not generate gap and alice with covering surface.
Embodiment
S1: when the advance of the face is to away from stopping adopting line 24m, during working surface production, top plate, anti-leak-stopping to be controlled
Top；
S2: when the advance of the face is to away from stopping adopting line 12m, working face starts to spread single layer rhombus net, need to guarantee single layer rhombus net
The seamless and alice situation between working face, rhombus net specification are B × H=10m × 1.2m, are greater than total paved surface using length
Long-pending 8%；
S3: after paving 1.5 row of monolayer net, starting to spread Double-level Reticulated to stopping adopting line, and when upper Double-level Reticulated, first air duct fabric is unfolded, right
The surface of air duct fabric is checked that the position for hole occur need to be repaired, and need of the hole diameter greater than 4cm are replaced, wind
The top of cylinder cloth is just fixed on single layer rhombus net lower edge using 12 galvanized wire of Ф every 50cm, and air duct fabric lap-joint is no less than
30cm；
S4: air duct fabric is laid with two-tier rhombic net after fixing, and two-tier rhombic net is covered on air duct fabric, air duct fabric surrounding
And air duct fabric lap-joint is fixed using 12 galvanized wire of Ф every 50cm, must be unfolded with the air duct fabric of net laying, table
Face is smooth；
S5: top plate lapping laying air duct fabric will be connected with coal wall linked network, and unit cuts net, air duct fabric or tries to stop people from fighting each other and tears
It at net, air duct fabric, to mend, and couple secured in time；
S6: before being laid with two-tier rhombic net every time, air duct fabric, then upper two-tier rhombic net, air duct fabric and the double-deck water chestnut have first been laid
Shape net is fixed together, entire force piece rear and top all standing air duct fabric.
In summary, by the way that, with the application of net laying air duct fabric, coal and oil shale working face remove face after work face frame
Fireproofing is obviously ensured that effective close the goaf greatly reduces the number of dropouts of inert gas inside injection goaf, makes
It obtains goaf inert gas hold-up and reaches 80% or more；Closed allround goaf is reduced the external world to goaf air leaking amount, is slowed down
The oxidation of goaf coal body, successfully solves coal and oil shale works face goaf cranny development, serious problem of leaking out, from
It fundamentally ensure that the fire safety during coal and oil shale working face remove face.
Although hereinbefore invention has been described by reference to embodiment, the scope of the present invention is not being departed from
In the case where, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as being not present
Structural conflict, the various features in presently disclosed embodiment can be combined with each other use by any way,
The description for not carrying out exhaustive to the case where these combinations in this specification is examined merely for the sake of omission length with what is economized on resources
Consider.Therefore, the invention is not limited to specific embodiments disclosed herein, but the institute including falling within the scope of the appended claims
There is technical solution.
Claims (4)
1. a kind of method that coal and oil shale remove laying air duct fabric after face frame with mining face, it is characterised in that: including following step
It is rapid:
S1: when the advance of the face is to away from stopping adopting line 24m~34m, during working surface production, top plate, anti-leak-stopping to be controlled
Top；
S2: when the advance of the face is to away from stopping adopting line 12m~16m, working face starts to spread single layer rhombus net, need to guarantee the list
Seamless and alice situation between layer rhombus net and the working face, rhombus net specification are B × H=10m × 1.2m, use length
The 8%~12% of area is laid with greater than total；
S3: after paving 1.5 row of monolayer net~2 rows, starting to spread Double-level Reticulated to stopping adopting line, and when upper Double-level Reticulated, first air duct fabric is unfolded, right
The surface of the air duct fabric is checked that the position for hole occur need to be repaired, and hole diameter need to be into greater than 4cm~6cm's
Row replacement, the top of the air duct fabric is just fixed under the single layer rhombus net using 12 galvanized wire of Ф every 50cm~55cm
Edge, the air duct fabric lap-joint are no less than 30cm~35cm；
S4: the air duct fabric is laid with the two-tier rhombic net after fixing, and the two-tier rhombic net is covered the air duct fabric
On, the air duct fabric surrounding and the air duct fabric lap-joint are fixed using 12 galvanized wire of Ф every 50cm~60cm,
It must be unfolded with the air duct fabric of net laying, surfacing；
S5: top plate lapping lays the air duct fabric and to be connected with coal wall linked network, and unit cuts net, the air duct fabric or tries to stop people from fighting each other
It tears net, at the air duct fabric, to mend in time, and couple secured；
S6: before being laid with the two-tier rhombic net every time, the good air duct fabric, then the upper two-tier rhombic net, the wind are first laid
Cylinder cloth is fixed together with the two-tier rhombic net, air duct fabric described in entire force piece rear and top all standing.
2. the method that a kind of coal according to claim 1 and oil shale remove laying air duct fabric after face frame with mining face,
Be characterized in that: the material of the single layer rhombus net and the two-tier rhombic net is mild steel wire.
3. the method that a kind of coal according to claim 1 and oil shale remove laying air duct fabric after face frame with mining face,
Be characterized in that: the material of the air duct fabric is that high-strength jewel fiber is made into coating base fabric, the air duct fabric and coal wall linked network
Connection type using bonding, adhesives be high-temperature glue agent.
4. the method that a kind of coal according to claim 1 and oil shale remove laying air duct fabric after face frame with mining face,
Be characterized in that: the bending region of the air duct fabric needs benefit to be screwed, it is ensured that the air duct fabric does not generate gap with covering surface
And alice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516951.7A CN110295902A (en) | 2019-06-14 | 2019-06-14 | A kind of coal and oil shale remove the method that air duct fabric is laid after face frame with mining face |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516951.7A CN110295902A (en) | 2019-06-14 | 2019-06-14 | A kind of coal and oil shale remove the method that air duct fabric is laid after face frame with mining face |
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| Publication Number | Publication Date |
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| CN110295902A true CN110295902A (en) | 2019-10-01 |
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Application publication date: 20191001 |