CN207348899U - A kind of fully-mechanized mining working withdraws system - Google Patents
A kind of fully-mechanized mining working withdraws system Download PDFInfo
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- CN207348899U CN207348899U CN201720545113.9U CN201720545113U CN207348899U CN 207348899 U CN207348899 U CN 207348899U CN 201720545113 U CN201720545113 U CN 201720545113U CN 207348899 U CN207348899 U CN 207348899U
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- Prior art keywords
- return channel
- fully
- pick
- mechanized mining
- stope
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Abstract
It the utility model is related to mining field of engineering technology, more particularly to a kind of fully-mechanized mining working withdraws system, it includes digging return channel and support system in advance, and the support system is equipped with the pre- pick return channel, and the pre- pick return channel is obliquely installed with respect to the back production trend of stope.The fully-mechanized mining working of the utility model withdraws system, and pre- return channel of digging is obliquely installed, the perforation of exploitation process segmented, can effectively prevent the unstability of coal column large area, ensures the stabilization of pre- pick return channel, realizes the purpose that working face is quickly moved.
Description
Technical field
Mining field of engineering technology is the utility model is related to, more particularly to a kind of fully-mechanized mining working withdraws system.
Background technology
Fully-mechanized mining working removal of home generally use now digs return channel and pre- pick return channel two ways at present, and now pick is withdrawn
Passage is that working face extraction excavates and withdraws space temporarily after in place, it is impossible to which, with coal mining parallel operations, working space is uneasy during driving
Entirely, particularly when roof cracking, worker's construction safety is difficult to be effectively ensured and traditional moving technique of working takes, arduously, average
Moving time is 1~2 month；Pre- pick return channel is that pick is sent in advance, with coal mining parallel operations, it is not necessary to independent holding time wound
Make and withdraw space, significantly shorten moving time, while it is with favourable conditions to tunnel supporting construction, supporting operation is convenient, the time
Abundance, supporting quality is high, ensure that the safety and stability for withdrawing space, significantly reduces equipment returning difficulty, reaches quick removal of home
Purpose, remarkable in economical benefits.
Currently used pre- pick return channel is single channel and binary channels, however, since the trend of pre- pick return channel is same
The mining direction of stope is vertical, and working face digs return channel and is inclined to base along working face with coal column between working face in advance when finishing up
This is wide, when stope closes on perforation with pre- pick return channel, waits the coal column of width that unstable failure easily occurs, causes
There is pressure rack or the phenomenon of return channel top plate extreme subsidence in stope, influences the normal of working face extraction equipment and withdraws.
Utility model content
(1) technical problems to be solved
The utility model provides a kind of fully-mechanized mining working and withdraws system, for solving working face finishing phase because of the big face of coal column
The problem of product unstability causes security incident, ensures the stabilization of pre- pick return channel, realizes the purpose that working face is quickly moved.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of fully-mechanized mining working and withdraws system, including digs back in advance
Passage and support system are removed, the support system is equipped with the pre- pick return channel, the pre- pick return channel is with respect to back production
The back production trend of working face is obliquely installed.
Wherein, the support system includes internal supporting and exterior supporting.
Wherein, the internal supporting uses anchor rete cord and W steel band combined supportings.
Wherein, the exterior supporting uses double intensive crib protection.
Wherein, the back production of the pre- pick relatively described stope of return channel move towards the inclined angle of institute be 1 °~
2°。
Wherein, the stope is equipped with working face extraction equipment.
Wherein, the working face extraction equipment includes hydraulic support, drag conveyor and coalcutter.
(3) beneficial effect
Fully-mechanized mining working provided by the utility model withdraws system, has the characteristics that compared with the prior art：
The fully-mechanized mining working of the utility model withdraws system, and pre- return channel of digging is obliquely installed, and exploitation process segmented is passed through
It is logical, it can effectively prevent the unstability of coal column large area, ensure the stabilization of pre- pick return channel, realize the mesh that working face is quickly moved
's；Reduce working face ending and the perforation stage there is not the maintenance difficulties of coal column, the stabilization for ensureing pre- pick return channel has
Important effect；It is pre- to dig oblique of the return channel with the mining direction low-angle of stope when seam inclination is larger, also
The gradient of pre- pick return channel can be reduced, is conducive to the resettlement of later stage work face equipment.
Brief description of the drawings
Fig. 1 is the structure chart that fully-mechanized mining working provided by the utility model withdraws system；
In figure, 1：Pre- pick return channel；2：Stope；3：Coal body；4：Coal column；5：Goaf；6：Stope drift active workings.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.The better embodiment of the utility model is given in attached drawing.These are only the preferred embodiment of the utility model, not because
This limitation the utility model the scope of the claims, every equivalent structure made based on the specification and figures of the utility model or
Equivalent process transformation, is directly or indirectly used in other related technical areas, is similarly included in the special of the utility model
In sharp protection domain.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood implication of technical staff in domain is identical.It is simply in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all combination of one or more relevant Listed Items.
The utility model provides a kind of fully-mechanized mining working and withdraws system, for solving working face finishing phase because of the big face of coal column
The problem of product unstability causes security incident, ensures the stabilization of pre- pick return channel, realizes the purpose that working face is quickly moved.
As shown in Figure 1, a kind of fully-mechanized mining working is provided in the utility model embodiment withdraws system, including pre- pick withdraw it is logical
Road 1 and support system, pre- dig in return channel are equipped with support system, it is to be understood that pre- pick return channel 1 is in coal body 3
In excavate in advance, with coal mining parallel operations, it is not necessary to which independent holding time, which is created, withdraws space, significantly shortens removal of home
Time, while the supporting construction tunneled is with favourable conditions, supporting operation is convenient, ample time, and the supporting quality of support system is high, energy
Enough safety and stability for ensureing to withdraw space, are greatly reduced equipment returning difficulty, and pre- pick return channel 1 is excavated in coal body 3 so that
The coal column 4 close to stope 2 is partitioned into coal body 3, also, it is to be understood that, the side of stope 2 is coal column
4, the opposite side of stope 2 is by the goaf 5 of coal daylighting；Withdrawn from existing unlike system, pre- pick withdraws logical
Road 1 is obliquely installed relative to the back production trend of stope 2.Pre- pick return channel 1 is obliquely installed, stope 2 with
The trapezoidal shape of coal column between pre- pick return channel 1, the process that stope 2 is penetrated through with pre- pick return channel 1, is presented sublevel
Segmentation penetrates through, when the pre- pick return channel 1 of the position perforation of the stope 2 where shearer gearhead, shearer gearhead institute
The position of stope 2 still suffer from the coal column of larger width, ensure pre- pick return channel close to actual mining surface side
The stabilization of coal side.
The fully-mechanized mining working of the utility model withdraws system, and pre- return channel of digging is obliquely installed, and exploitation process segmented is passed through
It is logical, it can effectively prevent the unstability of coal column large area, ensure the stabilization of pre- pick return channel, realize the mesh that working face is quickly moved
's；Reduce working face ending and the perforation stage there is not the maintenance difficulties of coal column, the stabilization for ensureing pre- pick return channel has
Important effect；It is pre- to dig oblique of the return channel with the mining direction low-angle of stope when seam inclination is larger, also
The gradient of pre- pick return channel can be reduced, is conducive to the resettlement of later stage work face equipment.
The utility model, when working face extraction is to pre- dig near return channel, is withdrawn during withdrawing according to pre- pick
Passage 1 is calculated the head of the coalcutter in stope 2 and is adopted with the inclined angle of mining direction of stope 2
The tail of coal machine is then enterprising in two stope drift active workings 6 of stope 2 respectively with the distance between pick return channel 1 in advance
Line flag, enables stope 2 to enter pre- pick return channel by measuring and calculating range segment separating cut coal column by mark point position
1, while pre-pouring grout reinforcing in advance carries out coal column 4 according to situations such as deformation of coal column 4, destruction；Stope 2 to digging back in advance
Remove passage 1 close to when, the perforation of sublevel segmentation is presented, when the head position perforation of coalcutter, the tail part of coalcutter still compared with
The coal column 4 of big width, ensures stabilization of the pre- pick return channel close to the coal side of work surface side.
In the present embodiment, in order to ensure the stabilization of pre- pick return channel, supporting is in the support system in pick return channel 1 in advance
Including internal supporting and outside supporting, wherein return channel 1 is dug in support in advance jointly for inside supporting, exterior supporting and coal column, so that
Ensure the stability of pre- pick return channel 1；General inside supporting is usually bolting and rope support, and exterior supporting is usually to chop formula
Supporting, wood chop or the mode such as concrete pillar, and coal column of the coal column between stope 2 and pre- pick return channel 1, as pre-
The lane side for digging return channel 1 carries out supporting to top plate.
In the present embodiment, in order to ensure the stability for the pre- pick return channel being obliquely installed, the inside supporting of support system
Using anchor rete cord and W steel band combined supportings, anchor shaft anchor cable therein uses Materials with High Strength, and applies high pre-stress, realizes high pre-
Stress strength is according to once supporting；And exterior supporting uses double intensive crib protection, the fully-mechanized mining working of the utility model is withdrawn
System, is combined by the exterior supporting of the inside supporting and double intensive crib protection of " anchor rete cord+W steel bands " combined supporting
Mode, improves the stability of return channel, ensures during withdrawing, and coal excavation apparatus is in the pre- pick return channel being obliquely installed
The safety of action.
In the present embodiment, it is pre- dig return channel 1 relative to the back production in 2 face of actual mining move towards the inclined angle of institute be 1 °~
2°.If pick 1 inclined angle of return channel is excessive in advance, drag conveyor length on the one hand can be caused inadequate, on the other hand meeting
Cause working surface hydraulic support excessive apart from the distance of lane side, increase supporting difficulty, the stability for withdrawing system is difficult to ensure that.
It is understood that stope is equipped with working face extraction equipment, working face extraction equipment carries out coal-getter
Make, and need to be withdrawn in fully-mechanized mining working withdraws system.It is understood that in order to complete actual mining, working face
Mining device includes hydraulic support, drag conveyor and coalcutter.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (4)
1. a kind of fully-mechanized mining working withdraws system, including pre- pick return channel and support system, set in the pre- pick return channel
There is the support system, it is characterised in that the pre- pick return channel is obliquely installed with respect to the back production trend of stope, institute
Stating support system includes internal supporting and exterior supporting, and the internal supporting uses anchor rete cord and W steel band combined supportings, described outer
Portion's supporting uses double intensive crib protection.
2. fully-mechanized mining working according to claim 1 withdraws system, it is characterised in that the pre- pick return channel is with respect to institute
Stating the back production of stope, to move towards the inclined angle of institute be 1 °~2 °.
3. the fully-mechanized mining working according to any one of claim 1-2 withdraws system, it is characterised in that the actual mining
Face is equipped with working face extraction equipment.
4. fully-mechanized mining working according to claim 3 withdraws system, it is characterised in that the working face extraction equipment includes
Hydraulic support, drag conveyor and coalcutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545113.9U CN207348899U (en) | 2017-05-16 | 2017-05-16 | A kind of fully-mechanized mining working withdraws system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545113.9U CN207348899U (en) | 2017-05-16 | 2017-05-16 | A kind of fully-mechanized mining working withdraws system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207348899U true CN207348899U (en) | 2018-05-11 |
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ID=62362431
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720545113.9U Expired - Fee Related CN207348899U (en) | 2017-05-16 | 2017-05-16 | A kind of fully-mechanized mining working withdraws system |
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| CN (1) | CN207348899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943264A (en) * | 2021-02-19 | 2021-06-11 | 国家能源集团宁夏煤业有限责任公司 | Construction method for fully-mechanized mining face retraction channel |
-
2017
- 2017-05-16 CN CN201720545113.9U patent/CN207348899U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943264A (en) * | 2021-02-19 | 2021-06-11 | 国家能源集团宁夏煤业有限责任公司 | Construction method for fully-mechanized mining face retraction channel |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 Termination date: 20190516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |