CN107701222B - Between upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method - Google Patents
Between upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method Download PDFInfo
- Publication number
- CN107701222B CN107701222B CN201710928095.7A CN201710928095A CN107701222B CN 107701222 B CN107701222 B CN 107701222B CN 201710928095 A CN201710928095 A CN 201710928095A CN 107701222 B CN107701222 B CN 107701222B
- Authority
- CN
- China
- Prior art keywords
- high position
- drilling
- lane
- top plate
- inclination
- 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.)
- Active
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005086 pumping Methods 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 180
- 238000000605 extraction Methods 0.000 claims abstract description 75
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000009423 ventilation Methods 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims description 30
- 239000003245 coal Substances 0.000 claims description 17
- 238000009825 accumulation Methods 0.000 claims description 13
- 238000005065 mining Methods 0.000 claims description 13
- 230000000737 periodic effect Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The present invention relates to a kind of upper corners, between tail bracket and goaf accumulated methane mixes and continues pumping method, mainly including the use of the top plate high position lane in stope working seam roof fracture band, when top plate high position lane is closed extraction lane, feature is: from air return way at a certain distance in air return way by drilling and tunnels included angle, drilling is met to the construction of top plate high position lane to inclination High Position Drilling with tunnel level inclination, aperture with closure gas drainage pipe, when stope is adjacent to High Position Drilling, open sealing cover, it is connected to the accumulated methane of the ventilation blind area of bracket at high-order lane extraction upper corner and tail, and continue the gas in extraction goaf.Gas caused by when eliminating the ventilation blind area at the air intake to upper corner and tail of air inlet crossheading between bracket gathers, continue goaf gas drainage by being cut off to meet to inclination High Position Drilling simultaneously, it ensures at upper corner and tail between bracket and goaf gas mixes and continues extraction, extracting result is significant.
Description
Technical field
The present invention relates to coal mine underground coal bed gas drainage technology, in particular between a kind of upper corner, tail bracket and adopt
Dead zone accumulated methane, which mixes, continues pumping method.
Background technique
With the promotion of down-hole mechanical production capacity, large-scale stope and high winning technology equipment guarantee coal-getter
Thus continuous, the fast extraction for making face also bring the gas emission sharp increase of goaf, coal breakage and coal wall, wind resource assessment
Burden.Between bracket and goaf is the main blind area of face-airing system at the upper corner of coal working face, tail,
Between upper corner and bracket because can not capture sufficient amount it is distinguished and admirable lead to that gas is serious by accumulation degree, transfinites frequently, worked
Face leaks out and influences goaf gas and largely accumulate in goaf near air return way side and roof fracture circle, this not only shadow
Ring working face coal cutting efficiency, while go back great threat the personal safety of coal mining personnel.Currently, the dilution of face-airing air-flow
It is to blow one of composition portion accumulated methane the most short-cut method with the effect of carrying, but under the pressure of efficiency and limited coal mining space, part
Addition ventilation guiding device is unfavorable for production distribution and personnel's operation, and underground executes more difficulty, such as coal working face bracket
Between the confined space nowhere dispose air -flow ejector at all, the method for injection of divulging information is very difficult to apply in position.
On the basis of fully considering downhole production layout and stratum bearing features, reasonable Arrangement tunnel or drilling are pinpointed
Negative pressure ejectment be no lack of be divulge information blind area prevention and treatment gas exceeding limit effective ways.Suction road can pinpoint extraction goaf and adjacent layer
Gas gas pressure relief prevents goaf gas from pouring in working face, and extraction amount is big, high-efficient, but single suction road is for upper corner
It can not accomplish to pinpoint ejectment between bracket at angle and tail, control area is limited；Traditional High Position Drilling is along goaf
The fissure zone arrangement of side, can extraction goaf and the next layer gas, have the advantages that construction is simple, at low cost, but because of rock stratum
It is caving by cut hole, the extraction time limit is short, ability is limited, and can not pinpoint the gas between extraction upper corner and bracket.Therefore, control comprehensively
Between face upper corner angle processed, bracket and goaf realizes that ventilation blind area mixes and continues extraction, prevents and treats methane accumulation, this is not only
It is particularly significant, but also be a problem.
Summary of the invention
The purpose of the present invention is overcoming the above technological deficiency, effectively realize between upper corner, tail bracket and goaf product
Poly- gas drainage, between a kind of upper corner of proposition, tail bracket and goaf accumulated methane mixes and continues pumping method.
The technical solution adopted by the present invention to solve the technical problems is: a kind of between upper corner, tail bracket and goaf
Accumulated methane, which mixes, continues pumping method, mainly high-order including the use of the top plate in stope working seam roof fracture band
Lane, top plate high position lane are closed extraction lane, and feature is: from air return way, L presses drilling in air return way at a certain distance
With tunnels included angle β, drilling and tunnel level inclination α1It does not cut off and is met to inclination High Position Drilling to the construction of top plate high position lane, aperture connects
The gas drainage pipe for entering with closure, when stope is neighbouring do not cut off meet to inclination High Position Drilling when, open gas pumping
The sealing cover of pipe is put, the accumulation watt of the ventilation blind area of bracket at top plate high position lane extraction air return way upper corner and tail is connected to
This, meets as working face is pushed forward not cut off to meet to be constituted to be cut off by coalcutter or caving zone cutting to inclination High Position Drilling to inclination
High Position Drilling, connection top plate high position lane continue the gas in extraction goaf.
Wherein: from air return way, L presses drilling and tunnels included angle β, drilling and tunnel in air return way at a certain distance
Level inclination α1It does not cut off and is met to inclination High Position Drilling, with L exists at a certain distance from air return way to the construction of top plate high position lane
In air return way by drill it is different from tunnels included angle, drill and tunnel level inclination not a top plate high position in the same direction lane beat do not cut off meet to
The replacement of High Position Drilling group is tilted, the first drilling is β with tunnels included angle1, subsequent drilling presses with tunnels included angle△β increase, drilling with
One of tunnel level inclination and caving zone to emit the angle of fall identical.
Wherein: its top plate high position lane is hung down 4~5 times of a height of mining thickness away from face roof, at upper corner and tail
When the ventilation blind area of bracket is wide, methane accumulation is serious, the stream guiding tube of an antistatic is connected to gas drainage under suction pipe end, is expanded
Drill negative pressure drainage range.
Wherein: meeting when coalcutter will cut off not cutting off to when tilting High Position Drilling, open next do not cut off and meet to inclination
The sealing cover of High Position Drilling, and connect the stream guiding tube of antistatic.
Wherein: when coalcutter will cut off do not cut off meet to inclination High Position Drilling group when, open next do not cut off and meet to inclining
The sealing cover of oblique High Position Drilling group, and connect the stream guiding tube of antistatic.
Wherein: when construction single hole, distance L is the one third of Periodic Weighting Length In Coal Mine Face to 2/3rds, is bored
Hole and tunnels included angle β are 20 degree~40 degree, drilling and tunnel level inclination α1With caving zone to emit the angle of fall identical.
Wherein: when construction combination drilling, distance L be Periodic Weighting Length In Coal Mine Face one third to three/
Two, drilling and one of tunnel level inclination and caving zone to emit the angle of fall identical,△β is equal to 5 degree.
Wherein: when top plate high position lane is non-closed extraction lane, meeting to inclination is high-order in all top plate high positions lane being bored
Hole is connected to the top plate high position lane extraction pipeline in top plate high position lane, continues between bracket and goaf at extraction upper corner and tail
Gas.
The beneficial effects of the present invention are: the invention eliminates brackets at the air intake to upper corner and tail of air inlet crossheading 1
Between ventilation blind area when caused by gas gather, while by be cut off meet to inclination High Position Drilling continue extraction goaf watt
This, it is ensured that at upper corner and tail between bracket and goaf gas mixes and continues extraction, extracting result is significant.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is schematic diagram when the present invention plays single drilling to top plate high position lane from air return way；
Fig. 2 be the present invention from air return way to a top plate high position lane drilling group when schematic diagram；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 is the B-B sectional view of Fig. 2；
Fig. 5 be the present invention from air return way to a top plate high position lane construction drill group when top plate high position lane extraction pipeline arrangement it is former
Reason figure；
Fig. 6 is that top plate high position lane extraction pipeline arrangement is former when the present invention drills from air return way to top plate high position lane work order
Reason figure.
In figure: 1. air inlet crossheadings, 2. working seams, 3. air return way, 4. goafs, bracket at 5. upper corners and tail
It divulges information blind area, 6. brackets, 7. top plate high position lanes, 8. do not cut off and meet to inclination High Position Drilling, and 9. are cut off to meet to inclination is high-order and bore
Hole, the stream guiding tube of 10. antistatics, 11. caving zones, 12. roof fracture bands, 13. drillings and tunnels included angle, 14. drillings and lane
Road level inclination, 15. sealing covers, 77. top plate high position lane extraction pipelines.
Specific embodiment
First embodiment
Referring to Fig. 1, Fig. 3, between a kind of upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method, main
It to be closed pumping including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate high position lane 7
Lane is adopted, feature is: pressing drilling and 13 β of tunnels included angle in air return way 3 for L=15 meters at a certain distance from air return way 3
=21.5 degree, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=24 degree and meet to inclination High Position Drilling
8, the gas drainage pipe of with closure 15 is accessed in aperture, when stope is neighbouring do not cut off meet to inclination High Position Drilling 8 when, beat
The sealing cover 15 of the gas drainage pipe is opened, the ventilation of bracket 6 at 7 extraction air return way upper corner of top plate high position lane and tail is connected to
The accumulated methane of blind area 5 cuts off structure by coalcutter or caving zone 11 as working face is pushed forward not cut off to meet to inclination High Position Drilling 8
It meets at being cut off to inclination High Position Drilling 9, connection top plate high position lane 7 continues the gas in extraction goaf 4.
Second embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, between a kind of upper corner, tail bracket and goaf accumulated methane mixes and continues extraction
Method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate high position lane 7 is
Closed extraction lane, feature are: drilling and tunnel folder are pressed in air return way 3 for L=16 meters at a certain distance from air return way 3
13 β=22.5 degree of angle, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=25.5 degree and meet to inclination height
Position drilling 8, the gas drainage pipe of with closure 15 is accessed in aperture, does not cut off and meets to inclination High Position Drilling when stope is neighbouring
When 8, the sealing cover 15 of the gas drainage pipe is opened, is connected to bracket 6 at 7 extraction air return way upper corner of top plate high position lane and tail
Ventilation blind area 5 accumulated methane, with working face be pushed forward do not cut off meet to inclination High Position Drilling 8 by coalcutter or caving zone 11
Cutting is constituted to be cut off and be met to inclination High Position Drilling 9, and connection top plate high position lane 7 continues the gas in extraction goaf 4.
Wherein: from air return way 3 at a certain distance L=16 meters in air return way 3 by drilling with 13 β of tunnels included angle=
22.5 degree, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=25.5 degree and meet to inclination High Position Drilling
8, drilling and tunnels included angle difference α are pressed in air return way 3 for L=16 meters at a certain distance with from air return way 31=25.5
Degree, α2=23.5 degree, α3=21.5 degree, drilling and tunnel level inclination not a top plate high position in the same direction lane 7 beat do not cut off meet it is high to inclination
Position 8 groups of replacements of drilling, the first drilling are β with tunnels included angle1=22.5 degree, subsequent drilling is pressed with tunnels included angle△β=5 degree increase
Add, i.e. β2=27.5 degree, β3=32.5 degree, identical, the i.e. α that emits the angle of fall of drilling and one of tunnel level inclination 14 and caving zone 111
=25.5 degree, α2=28 degree, α3=31 degree.
3rd embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, between a kind of upper corner, tail bracket and goaf accumulated methane mixes and continues extraction
Method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate high position lane 7 is
Closed extraction lane, feature are: drilling and tunnel folder are pressed in air return way 3 for L=18 meters at a certain distance from air return way 3
13 β=23 degree of angle, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=26.5 degree and meet to an inclination high position
The gas drainage pipe of with closure 15 is accessed in drilling 8, aperture, does not cut off and meets to inclination High Position Drilling 8 when stope is neighbouring
When, the sealing cover 15 of the gas drainage pipe is opened, bracket 6 at 7 extraction air return way upper corner of top plate high position lane and tail is connected to
Ventilation blind area 5 accumulated methane, with working face be pushed forward do not cut off meet to inclination High Position Drilling 8 by coalcutter or caving zone 11
Cutting is constituted to be cut off and be met to inclination High Position Drilling 9, and connection top plate high position lane 7 continues the gas in extraction goaf 4.
Wherein: from air return way 3 at a certain distance L=18 meters in air return way 3 by drilling with 13 β of tunnels included angle=
23 degree, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=26.5 degree and meet to inclination High Position Drilling 8,
With from air return way 3 at a certain distance L=18 meters in air return way 3 by drilling with tunnels included angle difference, that is, β1=23 degree, β2
=27 degree, β3=31 degree, drilling and tunnel level inclination difference, that is, α1=26.5 degree, α2=23.5 degree, α3=21.5 degree, to top
Plate high position lane 7 is beaten not cut off and be met to inclination 8 groups of replacements of High Position Drilling, and the first drilling is β with tunnels included angle1It is=23 degree, subsequent
Drilling is pressed with tunnels included angle△β=4 degree increase, drilling and one of tunnel level inclination 14 and caving zone 11 to emit the angle of fall identical, i.e.,
α1=26.5 degree.
Wherein: its top plate high position lane 7 is hung down 4~5 times of a height of mining thickness away from face roof, 10 meters, when upper corner and
When the ventilation blind area 5 of bracket is wide at tail, methane accumulation is serious, the stream guiding tube 10 of an antistatic is connected to gas drainage under suction
Pipe end expands drilling negative pressure drainage range.
Fourth embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, between a kind of upper corner, tail bracket and goaf accumulated methane mixes and continues extraction
Method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate high position lane 7 is
Closed extraction lane, feature are: drilling and tunnel folder are pressed in air return way 3 for L=19 meters at a certain distance from air return way 3
13 β=21.5 degree of angle, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=31.5 degree and meet to inclination height
Position drilling 8, the gas drainage pipe of with closure 15 is accessed in aperture, does not cut off and meets to inclination High Position Drilling when stope is neighbouring
When 8, the sealing cover 15 of the gas drainage pipe is opened, is connected to bracket 6 at 7 extraction air return way upper corner of top plate high position lane and tail
Ventilation blind area 5 accumulated methane, with working face be pushed forward do not cut off meet to inclination High Position Drilling 8 by coalcutter or caving zone 11
Cutting is constituted to be cut off and be met to inclination High Position Drilling 9, and connection top plate high position lane 7 continues the gas in extraction goaf 4.
Wherein: from air return way 3 at a certain distance L=19 meters in air return way 3 by drilling with 13 β of tunnels included angle=
21.5 degree, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=31.5 degree and meet to inclination High Position Drilling
8, drill, drilling different from tunnels included angle and lane are pressed in air return way 3 for L=19 meters at a certain distance with from air return way 3
Road level inclination not a top plate high position in the same direction lane 7 beat do not cut off meet to inclination 8 groups of replacements of High Position Drilling, first drilling and tunnels included angle
For β1=21.5 degree, subsequent drilling is pressed with tunnels included angle△β=5 degree increase, i.e. β2=26.5 degree, β3=31.5 degree, drilling with
Identical, the i.e. α that emits the angle of fall of one of tunnel level inclination 14 and caving zone 111=31.5 degree, α2=33.5 degree, α3=35.5 degree.
Wherein: its top plate high position lane 7 is hung down 4~5 times of a height of mining thickness away from face roof, is 11 meters, is worked as upper corner
With when the ventilation blind area 5 of bracket at tail is wide, methane accumulation is serious, the stream guiding tube 10 of an antistatic is connected to gas and is taken out
Pipe end is put, drilling negative pressure drainage range is expanded.
Wherein: when coalcutter will cut off do not cut off meet to 8 groups of High Position Drilling of inclination when, open next do not cut off and meet to inclining
The sealing cover 15 of oblique 8 groups of High Position Drilling, and connect the stream guiding tube 10 of antistatic.
5th embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, between a kind of upper corner, tail bracket and goaf accumulated methane mixes and continues extraction
Method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate high position lane 7 is
Closed extraction lane, feature are: drilling and tunnel folder are pressed in air return way 3 for L=19 meters at a certain distance from air return way 3
13 β=21.5 degree of angle, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=31.5 degree and meet to inclination height
Position drilling 8, the gas drainage pipe of with closure 15 is accessed in aperture, does not cut off and meets to inclination High Position Drilling when stope is neighbouring
When 8, the sealing cover 15 of the gas drainage pipe is opened, is connected to bracket 6 at 7 extraction air return way upper corner of top plate high position lane and tail
Ventilation blind area 5 accumulated methane, with working face be pushed forward do not cut off meet to inclination High Position Drilling 8 by coalcutter or caving zone 11
Cutting is constituted to be cut off and be met to inclination High Position Drilling 9, and connection top plate high position lane 7 continues the gas in extraction goaf 4.
Wherein: its top plate high position lane 7 is hung down 4~5 times of a height of mining thickness away from face roof, is 11 meters, is worked as upper corner
With when the ventilation blind area 5 of bracket at tail is wide, methane accumulation is serious, the stream guiding tube 10 of an antistatic is connected to gas and is taken out
Pipe end is put, drilling negative pressure drainage range is expanded.
Wherein: meeting when coalcutter will cut off not cutting off to when tilting High Position Drilling 8, open next do not cut off and meet to inclination
The sealing cover 15 of High Position Drilling 8, and connect the stream guiding tube 10 of antistatic.
Wherein: when construction single hole, L=19 meters of the distance one thirds for Periodic Weighting Length In Coal Mine Face to three/
Two, it drills and 13 β=21.5 degree of tunnels included angle, drilling and 14 α of tunnel level inclination1=31.5 degree emit the angle of fall with caving zone 11
It is identical.
Sixth embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, between a kind of upper corner, tail bracket and goaf accumulated methane mixes and continues extraction
Method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate high position lane 7 is
Closed extraction lane, feature are: drilling and tunnel folder are pressed in air return way 3 for L=18 meters at a certain distance from air return way 3
13 β=21 degree of angle, drilling and 14 α of tunnel level inclination1It constructs not cutting off to meet to inclination is high-order to top plate high position lane 7 for=29 degree and bore
The gas drainage pipe of with closure 15 is accessed in hole 8, aperture, when stope is neighbouring do not cut off meet to inclination High Position Drilling 8 when,
The sealing cover 15 of the gas drainage pipe is opened, bracket 6 is logical at connection 7 extraction air return way upper corner of top plate high position lane and tail
The accumulated methane of wind blind area 5 is cut off as working face is pushed forward not cut off to meet to inclination High Position Drilling 8 by coalcutter or caving zone 11
It constitutes to be cut off and meet to inclination High Position Drilling 9, connection top plate high position lane 7 continues the gas in extraction goaf 4.
Wherein: from air return way 3 at a certain distance L=18 meters in air return way 3 by drilling with 13 β of tunnels included angle=
21 degree, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=29 degree and meet to inclination High Position Drilling 8, use
Drill, drilling different from tunnels included angle and tunnel water are pressed in air return way 3 for L=18 meters at a certain distance from air return way 3
Flat inclination angle not a top plate high position in the same direction lane 7 beat do not cut off meet to inclination 8 groups of replacements of High Position Drilling, first drilling with tunnels included angle be β1
=21 degree, subsequent drilling is pressed with tunnels included angle△β=6 degree increase, β2=27 degree, β3It=33 degree, drills and tunnel level inclination
One of 14 with identical, the i.e. α that emits the angle of fall of caving zone 111=29 degree, α2=33 degree, α3=37 degree.
Wherein: its top plate high position lane 7 is hung down 4~5 times of a height of mining thickness away from face roof, 12 meters, when upper corner and
When the ventilation blind area 5 of bracket is wide at tail, methane accumulation is serious, the stream guiding tube 10 of an antistatic is connected to gas drainage under suction
Pipe end expands drilling negative pressure drainage range.
Wherein: when coalcutter will cut off do not cut off meet to 8 groups of High Position Drilling of inclination when, open next do not cut off and meet to inclining
The sealing cover 15 of oblique 8 groups of High Position Drilling, and connect the stream guiding tube 10 of antistatic.
Wherein: when construction combination drilling, L=18 meters of the distance one thirds for Periodic Weighting Length In Coal Mine Face to three
/ bis-, identical, the i.e. α that emits the angle of fall of drilling and one of tunnel level inclination 14 and caving zone 111=29 degree, α2=33 degree, α3=
37 degree,△β is equal to 6 degree, i.e. β1=21 degree, β2=27 degree, β3=33 degree.
7th embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, between a kind of upper corner, tail bracket and the mixing of goaf accumulated methane
Continue pumping method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate
High-order lane 7 is closed extraction lane, and feature is: brill is pressed in air return way 3 for L=15 meters at a certain distance from air return way 3
Hole and 13 β=20 degree of tunnels included angle, drilling and 14 α of tunnel level inclination1=27 degree to top plate high position lane 7 construction do not cut off meet to
Tilt High Position Drilling 8, the gas drainage pipe of with closure 15 is accessed in aperture, when stope is neighbouring do not cut off meet it is high to inclination
When position drilling 8, the sealing cover 15 of the gas drainage pipe is opened, is connected to 7 extraction air return way upper corner of top plate high position lane and tail
The accumulated methane for locating the ventilation blind area 5 of bracket 6, with working face be pushed forward do not cut off meet to inclination High Position Drilling 8 by coalcutter or
The cutting of caving zone 11 is constituted to be cut off and be met to inclination High Position Drilling 9, and connection top plate high position lane 7 continues watt in extraction goaf 4
This.
Wherein: from air return way 3 at a certain distance L=15 meters in air return way 3 by drilling with 13 β of tunnels included angle=
20 degree, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=27 degree and meet to inclination High Position Drilling 8, use
Drill, drilling different from tunnels included angle and tunnel water are pressed in air return way 3 for L=15 meters at a certain distance from air return way 3
Flat inclination angle not a top plate high position in the same direction lane 7 beat do not cut off meet to inclination 8 groups of replacements of High Position Drilling, first drilling with tunnels included angle be β1
=20 degree, subsequent drilling is pressed with tunnels included angle△β=5 degree increase, β2=25 degree, β3It=30 degree, drills and tunnel level inclination
One of 14 with identical, the i.e. α that emits the angle of fall of caving zone 111=27 degree, α1=30 degree, α3=33 degree.
Wherein: its top plate high position lane 7 is hung down 4~5 times of a height of mining thickness away from face roof, 10 meters, when upper corner and
When the ventilation blind area 5 of bracket is wide at tail, methane accumulation is serious, the stream guiding tube 10 of an antistatic is connected to gas drainage under suction
Pipe end expands drilling negative pressure drainage range.
Wherein: when coalcutter will cut off do not cut off meet to 8 groups of High Position Drilling of inclination when, open next do not cut off and meet to inclining
The sealing cover 15 of oblique 8 groups of High Position Drilling, and connect the stream guiding tube 10 of antistatic.
Wherein: when top plate high position lane 7 is non-closed extraction lane, by meeting to an inclination high position in all top plate high positions lane 7
Drill the top plate high position lane extraction pipeline 77 that is connected in top plate high position lane 7, continue at extraction upper corner and tail between bracket and
Goaf gas.
8th embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, between a kind of upper corner, tail bracket and the mixing of goaf accumulated methane
Continue pumping method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate
High-order lane 7 is closed extraction lane, and feature is: brill is pressed in air return way 3 for L=16 meters at a certain distance from air return way 3
Hole and 13 β=30 degree of tunnels included angle, drilling and 14 α of tunnel level inclination1=28 degree to top plate high position lane 7 construction do not cut off meet to
Tilt High Position Drilling 8, the gas drainage pipe of with closure 15 is accessed in aperture, when stope is neighbouring do not cut off meet it is high to inclination
When position drilling 8, the sealing cover 15 of the gas drainage pipe is opened, is connected to 7 extraction air return way upper corner of top plate high position lane and tail
The accumulated methane for locating the ventilation blind area 5 of bracket 6, with working face be pushed forward do not cut off meet to inclination High Position Drilling 8 by coalcutter or
The cutting of caving zone 11 is constituted to be cut off and be met to inclination High Position Drilling 9, and connection top plate high position lane 7 continues watt in extraction goaf 4
This.
Wherein: from air return way 3 at a certain distance L=16 meters in air return way 3 by drilling with 13 β of tunnels included angle=
30 degree, drilling and 14 α of tunnel level inclination1It constructs not cutting off to top plate high position lane 7 for=28 degree and meet to inclination High Position Drilling 8, use
Drill, drilling different from tunnels included angle and tunnel water are pressed in air return way 3 for L=16 meters at a certain distance from air return way 3
Flat inclination angle not a top plate high position in the same direction lane 7 beat do not cut off meet to inclination 8 groups of replacements of High Position Drilling, first drilling with tunnels included angle be β1
=30 degree, subsequent drilling is pressed with tunnels included angle△β=5 degree increase, β2=35 degree, β3It=40 degree, drills and tunnel level inclination
One of 14 with identical, the i.e. α that emits the angle of fall of caving zone 111=28 degree, α2=30 degree, α3=32 degree.
Wherein: its top plate high position lane 7 is hung down 4~5 times of a height of mining thickness away from face roof, 12 meters, when upper corner and
When the ventilation blind area 5 of bracket is wide at tail, methane accumulation is serious, the stream guiding tube 10 of an antistatic is connected to gas drainage under suction
Pipe end expands drilling negative pressure drainage range.
Wherein: when coalcutter will cut off do not cut off meet to 8 groups of High Position Drilling of inclination when, open next do not cut off and meet to inclining
The sealing cover 15 of oblique 8 groups of High Position Drilling, and connect the stream guiding tube 10 of antistatic.
Wherein: when top plate high position lane 7 is non-closed extraction lane, by meeting to an inclination high position in all top plate high positions lane 7
Drill the top plate high position lane extraction pipeline 77 that is connected in top plate high position lane 7, continue at extraction upper corner and tail between bracket and
Goaf gas.
9th embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, between a kind of upper corner, tail bracket and the mixing of goaf accumulated methane
Continue pumping method, mainly including the use of the top plate high position lane 7 in 2 roof fracture band 12 of stope working seam, top plate
High-order lane 7 is closed extraction lane, and feature is: brill is pressed in air return way 3 for L=20 meters at a certain distance from air return way 3
Hole and 13 β=21 degree of tunnels included angle, drilling and 14 α of tunnel level inclination1=30 degree to top plate high position lane 7 construction do not cut off meet to
Tilt High Position Drilling 8, the gas drainage pipe of with closure 15 is accessed in aperture, when stope is neighbouring do not cut off meet it is high to inclination
When position drilling 8, the sealing cover 15 of the gas drainage pipe is opened, is connected to 7 extraction air return way upper corner of top plate high position lane and tail
The accumulated methane for locating the ventilation blind area 5 of bracket 6, with working face be pushed forward do not cut off meet to inclination High Position Drilling 8 by coalcutter or
The cutting of caving zone 11 is constituted to be cut off and be met to inclination High Position Drilling 9, and connection top plate high position lane 7 continues watt in extraction goaf 4
This.
Wherein: its top plate high position lane 7 is hung down 4~5 times of a height of mining thickness away from face roof, and 9 meters, when upper corner and machine
When the ventilation blind area 5 of bracket is wide at tail, methane accumulation is serious, the stream guiding tube 10 of an antistatic is connected to gas drainage pipe
End expands drilling negative pressure drainage range.
Wherein: meeting when coalcutter will cut off not cutting off to when tilting High Position Drilling 8, open next do not cut off and meet to inclination
The sealing cover 15 of High Position Drilling 8, and connect the stream guiding tube 10 of antistatic.
Wherein: when construction single hole, L=20 meters of the distance one thirds for Periodic Weighting Length In Coal Mine Face to three/
Two, drilling is 21 degree with 13 β of tunnels included angle, drilling and 14 α of tunnel level inclination1=30 degree emit angle of fall phase with caving zone 11
Together.
Wherein: when top plate high position lane 7 is non-closed extraction lane, by meeting to an inclination high position in all top plate high positions lane 7
Drill the top plate high position lane extraction pipeline 77 that is connected in top plate high position lane 7, continue at extraction upper corner and tail between bracket and
Goaf gas.
Claims (11)
1. between a kind of upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method, mainly including the use of back production
Top plate high position lane in working face mining roof fissure zone, top plate high position lane are closed extraction lane, are characterized in that: from return air
L presses drilling and tunnels included angle β, drilling and tunnel level inclination α to crossheading in air return way at a certain distance1To a top plate high position
Lane construction, which is not cut off, meets to inclination High Position Drilling, and the gas drainage pipe of with closure is accessed in aperture, when stope is neighbouring not
Cutting is met to when tilting High Position Drilling, is opened the sealing cover of the gas drainage pipe, is connected on top plate high position lane extraction air return way
The accumulated methane of the ventilation blind area of bracket at corner and tail is adopted as working face is pushed forward not cut off to meet to inclination High Position Drilling
Coal machine or caving zone cutting are constituted to be cut off and be met to inclination High Position Drilling, and connection top plate high position lane continues watt in extraction goaf
This.
2. between a kind of upper corner according to claim 1, tail bracket and goaf accumulated methane mixes and continues extraction side
Method, it is characterised in that: L presses drilling and tunnels included angle β, drilling and tunnel in air return way at a certain distance from air return way
Level inclination α1It does not cut off and is met to inclination High Position Drilling, with L exists at a certain distance from air return way to the construction of top plate high position lane
In air return way by drill it is different from tunnels included angle, drill and tunnel level inclination not a top plate high position in the same direction lane beat do not cut off meet to
The replacement of High Position Drilling group is tilted, the first drilling is β with tunnels included angle1, subsequent drilling presses with tunnels included angle△β increase, drilling with
One of tunnel level inclination and caving zone to emit the angle of fall identical.
3. between a kind of upper corner according to claim 1, tail bracket and goaf accumulated methane mixes and continues extraction side
Method is characterized in that: its top plate high position lane is hung down 4~5 times of a height of mining thickness away from face roof, the branch at upper corner and tail
When the ventilation blind area of frame is wide, methane accumulation is serious, the stream guiding tube of an antistatic is connected to gas drainage under suction pipe end, expands and bores
Hole negative pressure drainage range.
4. between a kind of upper corner according to claim 2, tail bracket and goaf accumulated methane mixes and continues extraction side
Method, it is characterised in that: its top plate high position lane is hung down 4~5 times of a height of mining thickness away from face roof, at upper corner and tail
When the ventilation blind area of bracket is wide, methane accumulation is serious, the stream guiding tube of an antistatic is connected to gas drainage under suction pipe end, is expanded
Drill negative pressure drainage range.
5. between a kind of upper corner according to claim 1, tail bracket and goaf accumulated methane mixes and continues extraction side
Method, it is characterised in that: meet when coalcutter will cut off not cutting off to when tilting High Position Drilling, open next do not cut off and meet to inclination
The sealing cover of High Position Drilling, and connect the stream guiding tube of antistatic.
6. between a kind of upper corner according to claim 2, tail bracket and goaf accumulated methane mixes and continues extraction side
Method, it is characterised in that: meet when coalcutter will cut off not cutting off to when tilting High Position Drilling, open next do not cut off and meet to inclination
The sealing cover of High Position Drilling group, and connect the stream guiding tube of antistatic.
7. between a kind of upper corner according to claim 3, tail bracket and goaf accumulated methane mixes and continues extraction side
Method, it is characterised in that: meet when coalcutter will cut off not cutting off to when tilting High Position Drilling, open next do not cut off and meet to inclination
The sealing cover of High Position Drilling, and connect the stream guiding tube of antistatic.
8. between a kind of upper corner according to claim 4, tail bracket and goaf accumulated methane mixes and continues extraction side
Method, it is characterised in that: meet when coalcutter will cut off not cutting off to when tilting High Position Drilling, open next do not cut off and meet to inclination
The sealing cover of High Position Drilling group, and connect the stream guiding tube of antistatic.
9. between a kind of upper corner, tail bracket described according to claim 1 or 3 or 5 or 7 and accumulated methane mixing in goaf is held
Continuous pumping method, it is characterised in that: when construction single hole, distance L is the one third of Periodic Weighting Length In Coal Mine Face to three
/ bis-, drilling is 20 degree ~ 40 degree with tunnels included angle β, drilling and tunnel level inclination α1With caving zone to emit the angle of fall identical.
10. between a kind of upper corner, tail bracket according to claim 2 or 4 or 6 or 8 and the mixing of goaf accumulated methane
Continue pumping method, it is characterised in that: construction combination drilling when, distance L be Periodic Weighting Length In Coal Mine Face three/
2/1sts to three, drilling and one of tunnel level inclination and caving zone to emit the angle of fall identical,△β is equal to 5 degree.
11. between a kind of upper corner according to claim 1-8, tail bracket and accumulated methane mixing in goaf is held
Continuous pumping method, it is characterised in that: when top plate high position lane is non-closed extraction lane, by meeting to inclining in all top plate high positions lane
Oblique High Position Drilling is connected to the top plate high position lane extraction pipeline in top plate high position lane, continues at extraction upper corner and tail between bracket
And goaf gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928095.7A CN107701222B (en) | 2017-10-09 | 2017-10-09 | Between upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928095.7A CN107701222B (en) | 2017-10-09 | 2017-10-09 | Between upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107701222A CN107701222A (en) | 2018-02-16 |
| CN107701222B true CN107701222B (en) | 2019-04-12 |
Family
ID=61184629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928095.7A Active CN107701222B (en) | 2017-10-09 | 2017-10-09 | Between upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107701222B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113778B (en) * | 2018-09-12 | 2023-08-29 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Energy-collecting ventilator |
| CN113266414B (en) * | 2021-06-10 | 2023-11-28 | 中煤科工集团西安研究院有限公司 | Coal roadway tunneling gas control and ventilation method based on large-diameter directional drilling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392679A (en) * | 2011-11-21 | 2012-03-28 | 大同煤矿集团有限责任公司 | Comprehensive and integrative gas drainage method |
| CN103437803A (en) * | 2013-08-22 | 2013-12-11 | 山西晋城无烟煤矿业集团有限责任公司 | Structure and method for gas drainage of drill holes of high-drainage drill field of coal mine |
| CN103758559A (en) * | 2014-01-09 | 2014-04-30 | 中国矿业大学 | Gob-side entry retaining Y-type ventilation high-position return airway drilling gas extracting method |
| CN104564127A (en) * | 2015-02-12 | 2015-04-29 | 湖南科技大学 | Method for extracting gas in coal seams under overlying hung thick igneous rocks |
| CN204327172U (en) * | 2014-10-17 | 2015-05-13 | 山西晋城无烟煤矿业集团有限责任公司 | Formula boring goaf extraction structure before and after high-rise position |
| CN105351000A (en) * | 2015-06-24 | 2016-02-24 | 山西晋城无烟煤矿业集团有限责任公司 | Goaf roof high-position directional borehole gas extraction technology |
-
2017
- 2017-10-09 CN CN201710928095.7A patent/CN107701222B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392679A (en) * | 2011-11-21 | 2012-03-28 | 大同煤矿集团有限责任公司 | Comprehensive and integrative gas drainage method |
| CN103437803A (en) * | 2013-08-22 | 2013-12-11 | 山西晋城无烟煤矿业集团有限责任公司 | Structure and method for gas drainage of drill holes of high-drainage drill field of coal mine |
| CN103758559A (en) * | 2014-01-09 | 2014-04-30 | 中国矿业大学 | Gob-side entry retaining Y-type ventilation high-position return airway drilling gas extracting method |
| CN204327172U (en) * | 2014-10-17 | 2015-05-13 | 山西晋城无烟煤矿业集团有限责任公司 | Formula boring goaf extraction structure before and after high-rise position |
| CN104564127A (en) * | 2015-02-12 | 2015-04-29 | 湖南科技大学 | Method for extracting gas in coal seams under overlying hung thick igneous rocks |
| CN105351000A (en) * | 2015-06-24 | 2016-02-24 | 山西晋城无烟煤矿业集团有限责任公司 | Goaf roof high-position directional borehole gas extraction technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107701222A (en) | 2018-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101915083B (en) | Method for extracting coalbed gases from coal mines by upper and lower combination | |
| JP6868747B2 (en) | How to release water and coal layer gas together | |
| CN101581231B (en) | Gas drainage method for loosening coal body through cross layer boring and hydraulic fracture | |
| CN100593630C (en) | Caving zone edge inclined drill hole bushing burying method for extracting and discharging gas for goaf and adjacent layer | |
| CN106761902B (en) | A kind of stereo synthesis pressure relief gas pumping mining method suitable for soft rock protective coat extracted | |
| CN103670496A (en) | Gob-side entry retaining and sectional coal seam gas pre-extracting method for single low-permeability outburst coal seam | |
| CN103899350A (en) | Fully mechanized caving face supporting top coal gas extraction system | |
| CN105804786B (en) | A kind of weak seam bottom plate layer-through drilling pressure rushes anti-reflection method | |
| CN107701222B (en) | Between upper corner, tail bracket and goaf accumulated methane mixes and continues pumping method | |
| CN103147734A (en) | Method for multi-section hydraulic fracture along coal layer of underground coal mine | |
| CN101915086B (en) | Coal mine underground gas borehole fracturing method | |
| CN102678166B (en) | Method for increasing gas extraction rate by permeability increasing of single thick coal seam | |
| CN107905832A (en) | The outburst elimination method of pump drainage is combined on a kind of nitrogen pressure break and ground with underground | |
| CN110894794B (en) | Comprehensive treatment method for gas on fully mechanized caving face of three-soft extra-thick coal seam | |
| CN107956467A (en) | A kind of high seam pre-draining borehole parameter optimization and the method for extracting result assessment | |
| CN107503790A (en) | Fast extraction fully mechanized coal face comprehensive gas drainage arranges administering method | |
| CN202768008U (en) | Three-degree-of-freedom self-walking mini-type shield mechanism | |
| CN204327172U (en) | Formula boring goaf extraction structure before and after high-rise position | |
| CN205743985U (en) | A kind of gas at upper corner exhaust device | |
| RU2441167C1 (en) | Method for draining out of gases in superimposed seam | |
| CN207363699U (en) | A kind of device for improving downdraft mode paste body filling mining methods Tight filling rate | |
| CN213269850U (en) | Directional long-drill-hole cross-layer gas extraction system | |
| CN2871850Y (en) | Independent water-sealed gas extracting area in mine | |
| CN108561175B (en) | The method that the associated digging laneway of coal rock tunnel carries out drawing-off gas using throughbore | |
| CN106948860A (en) | The method for cooperateing with progressive draining coal seam gas with directional drilling based on U-shaped well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 113122 No.11 Binhe Road, Shenfu demonstration area, Fushun City, Liaoning Province Patentee after: Shenyang Research Institute Co.,Ltd. Address before: 113122 Binhe Road, Fushun Economic Development Zone, Liaoning 11, China Patentee before: CCTEG (China Coal Technology and Engineering Group Corp.) |
|
| CP03 | Change of name, title or address |