CN107725053B - Lane is reserved for one's own use without pillar mining method in exploiting field suitable for gently inclined seam - Google Patents
Lane is reserved for one's own use without pillar mining method in exploiting field suitable for gently inclined seam Download PDFInfo
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- CN107725053B CN107725053B CN201711088420.XA CN201711088420A CN107725053B CN 107725053 B CN107725053 B CN 107725053B CN 201711088420 A CN201711088420 A CN 201711088420A CN 107725053 B CN107725053 B CN 107725053B
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- back production
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- exploiting field
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- 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
Abstract
The invention discloses a kind of exploiting fields suitable for gently inclined seam to reserve lane for one's own use without pillar mining method, the following steps are included: certain coal mine, which delimited, is suitble to limit of mining of the gob side entry retaining without coal column, from developing main entry opening, two mining roadway and first mining face air return lane are tunneled, and developing crossdrift connects main return airway.Three tunnels and crossdrift are connected, the preparatory working and ventilating system in exploiting field are formed.This is main feature of the invention.In first job face open-off cut, every production system is arranged.The back production of first job face is used using the tunnel that edge air gallery technology retains one fixed width as the transportation roadway of second working face.Second working face extraction, the tunnel for retaining one fixed width are used as the air return lane of third working face, follow-up work face and so on.The present invention realizes in exploiting field without digging laneway without pillar extraction.
Description
Technical field
The invention belongs to coal mining technology fields.
Background technique
The mining method of current China's coal-mine no matter gently inclined seam or inclined seam, generally move towards to grow using exploiting field formula
Wall mining method divides several stages within the scope of field with "nine squares", arrange one to two main entrys along bearing in stage base,
A return air main entry is arranged along bearing in stage top, is divided into several exploiting fields, exploiting field along bearing in phase range
It is interior to divide several sections along coal seam tendency, it is inclined to arrangement coal working face along coal seam in section, each exploiting field is inclined to along coal seam
2 to 3 bord-ups of arrangement and main entry above and below the connection stage, to form Main production Systems.Each section leads to before back production
It often needs first to have dug two stope drift active workings, in order to guarantee the normal continuance of stope, needs complete in a upper working face extraction
It at the preceding stope drift active workings for tunneling good next subsequent duty face, needs to stay between two section working faces and sets protection coal pillar, this is not only
Coal resources waste is caused, and causes stress of coal pillar collection and neutralizes potential spontaneous combustionof coal hidden danger, may also result in simultaneously
Excavation replacement is nervous, therefore has many coal mines to implement by gob side entry retaining without coal pillar mining at present.But this gob side entry retaining exploitation
System is also not thorough, and each section could be formed with another along the tunnel that sky stays there is still a need for a section haulage way is first tunneled
New coal working face, and coal working face removal of home distance is remote, and moving time is long, great work intensity.In addition, traditional exploiting field
2 to 3 district rises of arrangement are generally all disposed in the middle part of exploiting field or the same lateral boundaries in exploiting field, are unfavorable for forming protrusive and retreat
The coal working face of the smooth conversion of formula easily moved.
Summary of the invention:
It is an object of the invention to overcome the shortcomings of existing mining method, provides and reserved for one's own use suitable for the exploiting field of gently inclined seam
Lane is without pillar mining method.This method may be implemented only to need to tunnel working face time in the exploiting field of a gently inclined seam
Air way road does not stay and carries out reciprocating back production in the case where setting working face protection coal pillar, to reduce excavation work, coal is avoided to provide
The waste in source.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
Lane is reserved for one's own use without pillar mining method for a kind of exploiting field suitable for gently inclined seam, comprising the following steps:
It is big to have tunneled track main entry, main haulage roadway and return air according to condition of coal seam occurrence in coal mine level for the first step
Behind lane, coal seam in horizontal extent is divided into several exploiting fields, and so on；It is characterized in that
Second step, for a certain exploiting field, from main haulage roadway to one side opening of exploiting field, along coal seam, tendency tunnels a belt fortune
It is defeated to go up a hill, from track main entry to another side opening in exploiting field, one rail transport of driving is inclined to along coal seam and is gone up a hill, then by each exploiting field
Successively be divided into several sections from top to down, i.e. the first section, the second section, and so on, the driving the on the first section top
One tailentry road, and penetrated through with return air main entry；
Third step enters coal seam from the opening of belt-conveying rise construction first, constructs in coal seam in the first section position
First open-off cut, open-off cut and the first tailentry penetrate through, and form the first stope, cloth on the first stope
Set coal excavation apparatus；Scalable equipment of conveyer is arranged in the first opening；
4th step starts back production, when back production close to the second section side using it is existing cut top and unload be pressed into lane technology, as
The transportation roadway of first headentry and next stope, and prolong retractable belt forward with actual mining
It is long, until the first stope reaches right end, goaf is formed after back production, back production terminates；
In exploitation process, transporting coal system line is that coal stream is by the first stope through the first headentry, skin
Band transport is gone up a hill to main haulage roadway, then is transported to ground through shaft station；Transportation system route is that material is through track main entry, track
Transport is gone up a hill and the first tailentry to the first stope；Ventilating system route is that fresh wind is through track main entry, skin
Band transport, which is gone up a hill, reaches the first stope with the first headentry, becomes waste air after crossing working face, through the first work
Face air return lane is to return air main entry；
Meanwhile in the second section position, enter coal seam from the opening of rail transport rise construction second, on the right side of the second section
The second open-off cut of end construction, it is spare to form the second stope；
5th step penetrates through at the end of the first stope back production with the second working face, by coal excavation apparatus integral slipping
To the second stope, this headentry equipment is motionless, continues to use for the second face haulage；
Start the second stope of back production, is unloading the lane technology that is pressed into using cutting top close to third section side when back production, making
For the second stope air return lane, and the air return lane as subsequent work face, until the second stope is adopted to left end,
Back production terminates；
Meanwhile in third section position, enter coal seam from belt-conveying rise construction third opening, on a left side for third section
End construction third open-off cut, forms third working face, spare；
6th step voluntarily penetrates through at the end of the second stope back production with third stope, by coal excavation apparatus
Scalable travelling belt is moved in third opening into third open-off cut, starts back production by integral slipping, such as the 4th step, after
Continuous working face and so on, until the exploiting field back production finishes.
Compared with prior art, the invention has the following beneficial effects:
1. compared with tradition is without pillar mining method, the present invention realizes and need to only tunnel a head in advance in an exploiting field and adopt
Tailentry road greatly reduces tunnelling cost, realizes that Adjacent Working Face does not stay and sets protection coal pillar, to save
About coal resources.
2. not having to protection coal pillar, to save coal resources since two, exploiting field bord-up is arranged in exploiting field two sides.When
It after this exploiting field has been adopted, is continued to use for adjacent exploiting field, so that next exploiting field is tunneled a bord-up less, and simplify personnel
With the transfer of equipment.
3. after having been adopted due to a upper working face, wherein a stope drift active workings remain to play identical work for subsequent work face
With, therefore only need another stope drift active workings removal of home to the stope drift active workings in subsequent work face, reduce removal of home number, saves interval
Time；After the completion of a upper working face, coal excavation apparatus do not have to disassembly turn back removal of home after re-assembly again, it is only necessary to integral slipping
To subsequent work face, moving time is saved, realizes the seamless operating between two working faces.
It should be noted that because there is waste air downlink in second stope, so coal-mining method of the present invention
It is preferably applied in the gently inclined seam of seam inclination≤12 °.
Detailed description of the invention
Fig. 1 to Fig. 4 is the roadway layout and mining steps'diagram of the embodiment of the present invention.
In figure: 1- main haulage roadway, 2- track main entry, 3- return air main entry, the exploiting field 4-, 5- belt-conveying are gone up a hill, 6- track fortune
Defeated to go up a hill, 7- back production section, 8- first is open, 9- the first open-off cut the first tailentry of 10-, the first working face of 11- fortune
Defeated lane, the goaf 12-, 13- second are open, the second open-off cut of 14-, the first stope of 15-, the second stope of 16-,
17- the second stope air return lane, 18- third opening, 19- third open-off cut.
Specific embodiment:
The present invention is made further instructions below in conjunction with attached drawing.
Lane is reserved for one's own use without pillar mining method in the exploiting field that the present invention is suitable for gently inclined seam, comprising the following steps:
The first step has tunneled main haulage roadway 1, track main entry 2 and return air according to condition of coal seam occurrence in coal mine level
After main entry 3, coal seam is divided into several exploiting fields 4 in the horizontal extent, as shown in Figure 1；
Second step, from main haulage roadway 1 to 4 one side opening of exploiting field, is inclined to one skin of driving along coal seam for a certain exploiting field 4
Band transport goes up a hill 5, from track main entry 2 to another side opening in exploiting field 4, is inclined to one rail transport of driving along coal seam and goes up a hill 6, then will
Each exploiting field 4 is successively divided into several sections 7 from top to down, i.e. the first section, the second section, and so on, in the first section
Tunnel first job face air return lane 10 on top, and penetrates through with return air main entry 3；
Third step is gone up a hill 5 constructions first opening 8 into coal seam from belt-conveying, is applied in coal seam in the first section position
The first open-off cut of work 9, the first open-off cut 9 and the first tailentry 10 penetrate through, the first stope 15 of formation, and first time
Coal excavation apparatus is arranged on mining face 15；Scalable equipment of conveyer is arranged in the first opening 8, as shown in Figure 2；
4th step starts back production, when back production close to the second section side using it is existing cut top and unload be pressed into lane technology, as
The transportation roadway of first headentry 11 and next stope, and prolong retractable belt forward with actual mining
It is long, until the first stope 15 reaches right end, goaf 12 is formed after back production, back production terminates, as shown in Figure 3；
In exploitation process, transporting coal system line is that coal stream is by the first stope 15 through the first headentry
11, belt-conveying goes up a hill 5 to main haulage roadway 1, then is transported to ground through shaft station；Transportation system route is that material is big through track
Lane 2, rail transport are gone up a hill 6 and 10 to the first stope 15 of the first tailentry；Ventilating system route is fresh wind
Through track main entry 2, belt-conveying go up a hill 5 and first headentry 11 reach the first stope 15, cross working face after
Become waste air, through the first tailentry 10 to return air main entry 3；
Meanwhile in the second section position, 6 constructions second opening 13 is gone up a hill into coal seam, in the second section from rail transport
Right end construct the second open-off cut 14, formed the second stope 16 it is spare, as shown in Figure 3；
5th step is penetrated through with the second working face 16 at the end of 15 back production of the first stope, by coal excavation apparatus entirety
The second stope 16 is slid onto, this headentry equipment is motionless, continues to transport use for the second stope 16；
Start the second stope of back production 16, be pressed into lane technology using cutting top and unload close to third section side when back production,
As the second stope air return lane 17, and the air return lane as subsequent work face, until the second stope 16 is adopted
To left end, back production terminates, as shown in Figure 4；
Meanwhile in third section position, 5 construction thirds opening 18 is gone up a hill into coal seam, in third section from belt-conveying
Left end construct third open-off cut 19, formed third working face, it is spare；
6th step voluntarily penetrates through with third stope at the end of 16 back production of the second stope, coal mining is set
Scalable travelling belt is moved in third opening 18 into third open-off cut 19, starts back production, such as the 4th by standby integral slipping
Step, follow-up work face and so on, until the exploiting field back production finishes.
Claims (1)
1. a kind of exploiting field suitable for gently inclined seam reserves lane for one's own use without pillar mining method, which comprises the following steps:
The first step has tunneled track main entry, main haulage roadway and return air main entry according to condition of coal seam occurrence in coal mine level
Afterwards, coal seam in horizontal extent is divided into several exploiting fields, and so on；
Second step is inclined on one belt-conveying of driving from main haulage roadway to one side opening of exploiting field along coal seam for a certain exploiting field
Mountain is inclined to one rail transport of driving along coal seam and goes up a hill from track main entry to another side opening in exploiting field, then by each exploiting field from upper
Successively be divided into several sections under and, i.e. the first section, the second section, and so on, first is tunneled on the first section top
Tailentry road, and penetrated through with return air main entry；
Third step enters coal seam from the opening of belt-conveying rise construction first in the first section position, constructs first in coal seam
Open-off cut, open-off cut and the first tailentry penetrate through, and form the first stope, arrange on the first stope
Coal excavation apparatus；Scalable equipment of conveyer is arranged in the first opening；
4th step starts back production, lane technology is being pressed into using cutting top and unload close to the second section side when back production, as the first working face
The transportation roadway of transportation roadway and next stope, and extend retractable belt forward with actual mining, until first
Stope reaches right end, and goaf is formed after back production, and back production terminates；
In exploitation process, transporting coal system line is that coal stream is transported by the first stope through the first headentry, belt
It is defeated to go up a hill to main haulage roadway, then ground is transported to through shaft station；Transportation system route is that material is through track main entry, rail transport
It goes up a hill and the first tailentry to the first stope；Ventilating system route is that fresh wind is transported through track main entry, belt
Defeated go up a hill reaches the first stope with the first headentry, becomes waste air after crossing working face, returns through the first working face
Air way is to return air main entry；
Meanwhile in the second section position, enters coal seam from the opening of rail transport rise construction second, applied in the right end of the second section
It is spare to form the second stope for the second open-off cut of work；
5th step is penetrated through with the second working face at the end of the first stope back production, by coal excavation apparatus integral slipping to the
Two stopes, this headentry equipment is motionless, continues to use for the second face haulage；
Start the second stope of back production, be pressed into lane technology using cutting top and unload close to third section side when back production, as the
Two stope air return lanes, and the air return lane as subsequent work face, until the second stope is adopted to left end, back production
Terminate；
Meanwhile in third section position, enters coal seam from belt-conveying rise construction third opening, applied in the left end of third section
Work third open-off cut forms third working face, spare；
6th step is voluntarily penetrated through with third stope at the end of the second stope back production, by coal excavation apparatus entirety
It slides onto third open-off cut, scalable travelling belt is moved in third opening, back production, such as the 4th step, subsequent work are started
Make face, until the exploiting field back production finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088420.XA CN107725053B (en) | 2017-11-08 | 2017-11-08 | Lane is reserved for one's own use without pillar mining method in exploiting field suitable for gently inclined seam |
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|---|---|---|---|
| CN201711088420.XA CN107725053B (en) | 2017-11-08 | 2017-11-08 | Lane is reserved for one's own use without pillar mining method in exploiting field suitable for gently inclined seam |
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| CN107725053A CN107725053A (en) | 2018-02-23 |
| CN107725053B true CN107725053B (en) | 2019-04-05 |
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| CN111794749A (en) * | 2020-07-16 | 2020-10-20 | 山东里能里彦矿业有限公司 | N00 coal mining process suitable for thin coal seam |
| CN112360461B (en) * | 2020-11-26 | 2022-03-04 | 中铁工程装备集团有限公司 | Circulating coal mining method and mining system thereof |
| CN113738360B (en) * | 2021-09-08 | 2023-09-22 | 国家能源集团宁夏煤业有限责任公司 | Mining method for underground fully-mechanized mining face of coal mine |
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