CN110284883A - Recovery method is filled by a kind of row of adopting, open coal mine end side - Google Patents
Recovery method is filled by a kind of row of adopting, open coal mine end side Download PDFInfo
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- CN110284883A CN110284883A CN201910608448.4A CN201910608448A CN110284883A CN 110284883 A CN110284883 A CN 110284883A CN 201910608448 A CN201910608448 A CN 201910608448A CN 110284883 A CN110284883 A CN 110284883A
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- Prior art keywords
- filling
- open
- coal
- filled
- end side
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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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- 239000003245 coal Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 32
- 238000005065 mining Methods 0.000 claims abstract description 30
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 13
- 239000011707 mineral Substances 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 230000032258 transport Effects 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 238000005429 filling process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 238000007665 sagging Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000001351 cycling effect Effects 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of open coal mine end, recovery method is filled by the row of adopting, side, first hole bottom is helped at opencut end, trunk roadway and back heading are tunneled in parallel along seam inclination direction, transportation roadway and track lane are tunneled in parallel along bearing direction, transportation roadway and track lane are penetrated through, open-off cut and complete ventilating system are formed；Stoping-and-filling working face is arranged in open-off cut, is disposed about Crushing Station in mineral rights circle, while Crushing Station is disposed about vertical transport system；While coalcutter coal cutting, outdoor slag is delivered to goaf, carries out packing job, repetitive cycling, until completing the coal mining and filling of entire end side stoping-and-filling working face.This method can solve end side pressure coal problem, improve the recoverable reserves of open coal mine, while can reduce opencast discharging earth field slag and pollute to environment bring, is a kind of safe and efficient, adaptable Green Mining Technology, has broad application prospects.
Description
Technical field
The present invention relates to a kind of open coal mine end, recovery method is filled by the row of adopting, side, belongs to Green Technique in Coal Mining field.
Background technique
The annual coal resources total output 20% or so in China is strip mining transformation, and the large scale mining of opencut is to ecology of mining areas
Environment causes tremendous influence, mainly includes that open-pit mine blast occupies and destroy a large amount of soils, refuse dump slag leaching water is dirty
Dye surface water and soil, slag are not effectively used as cheap waste fill material；Simultaneously because open-pit slope
The presence at angle, side pressure coal amount in end is huge, therefore the safe and efficient recycling of side pressure coal is held to become open coal mine a great problem, existing
High wall mining technique has been achieved for some progress and practical application, but still there is ends to help resource recovery rate low, influences side
The problem of slope stability, needs further to solve.
Summary of the invention
Goal of the invention: in order to solve the problems, such as the pressure coal back production of open coal mine end side, the purpose of the present invention is to provide one kind
Recovery method is filled by the open coal mine end row of adopting, side, and safe and efficient recovery end helps coal resources, while reducing the discharge of open coal mine slag.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
Recovery method is filled by a kind of row of adopting, open coal mine end side, characterized in that helps arrangement stoping-and-filling work at opencut end
Face, and vertical transport system is established in open coal mine mineral rights circle, side stoping-and-filling work in end is delivered to after outdoor slag is crushed
Face, bashing while back production achieve the purpose that control open slope, comprising the following steps:
A. hole bottom is helped at opencut end, tunnels trunk roadway and back heading in parallel along seam inclination direction；
B. transportation roadway and track lane, perforation fortune are tunneled along bearing direction is parallel respectively in trunk roadway and the back heading end of a lane
Defeated lane and track lane form open-off cut and complete ventilating system；
C. stoping-and-filling working face, including coalcutter, drag conveyor and filling coal mining hydraulic support are arranged in open-off cut
Deng；
D. it is disposed about Crushing Station in mineral rights circle, break process is carried out to outdoor slag, makes its partial size < 30mm；
E. Crushing Station is disposed about vertical transport system simultaneously, passes through vertically disposed batching hole and fortune from opencut top
Broken outdoor slag is delivered to stoping-and-filling working face by defeated lane connection；
F. it mines and is carried out simultaneously with packing job, while coalcutter coal cutting, the filled hydraulic branch of mining of outdoor slag
Frame is delivered to goaf, and the packing job of the drilling depth is completed in filled coal mining hydraulic support reinforcement mechanism compacting；
G. step f is repeated, coal mining, the packing job of next drilling depth are continued, until completing entire end side stoping-and-filling work
Make the coal mining and filling in face.
Recovery method, trunk roadway and back heading fill at a distance of 20m, trunk roadway driving in a kind of open coal mine end row of adopting, side
To at away from mineral rights circle 20m, the long 30m of back heading, transportation roadway and track lane are tunneled at away from mineral rights circle 20m.
Recovery method is filled by a kind of open coal mine end row of adopting, side, and the vertical transport system of foundation includes storing on well
Stand, batching hole, downhole gangue storehouse, stocker is located at the top of opencut on well, batching hole extend vertically through up and down opencut to fortune
Defeated lane connection, outdoor slag are fallen by stocker on well through batching hole, drop down onto transportation roadway by the drain hole in downhole gangue storehouse
Haul rubber conveyer is transported to working face through elevating conveyor, forms underground filling material transport system.
The vertical transport system, downhole gangue storehouse include buffer, storage bin and drain hole, and buffer is used to reduce
Filler throws into the impact force in storage bin, the radius R=2.5m of storage bin, total height 20m.
The vertical transport system, the bore dia that feeds intake are 40cm.
The outdoor slag is mainly ground mixture, through open-pit mine blast by Leather Belt Conveyance to Crushing Station.
Recovery method is filled by a kind of open coal mine end row of adopting, side, and the end side stoping-and-filling working face is adopted using filling
Coal hydraulic bracket, filling process are as follows: while coalcutter coal cutting, outdoor slag is transported through underground filling material transport system
It to coal working face, is unloaded by the dumping pit of the porous bottom-dump conveyer in bracket rear and drops down onto goaf, and is hydraulic by filling coal mining
Reinforcement mechanism on bracket base carries out pushing compacting to attal, forms the closely knit obturation for connecing top.
Advantageous effects of the invention: by helping arrangement stoping-and-filling working face and vertical transport system at opencut end
System is filled into end side stoping-and-filling working face using outdoor slag as filler, on the one hand can solve end side pressure coal and asks
Topic, reduces stripping-to-ore ratio, expands the limit of mining of open coal mine, improve the recoverable reserves of open coal mine, having recycled can not
Regenerated coal resources；Opencast discharging earth field slag can be reduced simultaneously to pollute environment bring, be a kind of safe and efficient, adaptation
The strong Green Mining Technology of property, has broad application prospects.
Detailed description of the invention
Fig. 1 is outdoor slag transportation system figure of the invention；
Fig. 2 is stoping-and-filling working face floor plan of the invention；
Fig. 3 is stoping-and-filling working face sectional view of the invention；
In figure: 1- trunk roadway；2- back heading；3- mineral rights circle；4- transportation roadway；5- track lane；6- coalcutter；The conveying of 7- scraper plate
Machine；8- filling coal mining hydraulic support；9- Crushing Station；10- stocker；11- batching hole；12- downhole gangue storehouse；13- haul adhesive tape
Conveyer；14- elevating conveyor；The porous bottom-dump conveyer of 15-；16- dumping pit.
Specific embodiment:
The invention will be further described below in conjunction with the accompanying drawings.Following case study on implementation is only used for clearly illustrating this hair
Bright technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, this method fills transportation system in the outdoor slag for forming complete set, open-pit mine blast is stacked
Slag as attal, be filled into end side filling coal mining work face goaf 2, safety coal extraction end while controlling side slope
Side pressure coal.The specific steps are that:
A. hole bottom is helped at opencut end, tunnels trunk roadway 1 and back heading 2 in parallel along seam inclination direction；Trunk roadway with
Back heading 2 is at a distance of 20m, and for the driving of trunk roadway 1 at away from mineral rights circle 20m, back heading 2 is 30m long；
B. transportation roadway 4 and track lane 5, transport are tunneled along bearing direction is parallel respectively in trunk roadway and the back heading end of a lane
Lane 4 and the driving of track lane 5 penetrate through transportation roadway 4 and track lane 5, form open-off cut and complete ventage at away from mineral rights circle 20m
System；
C. stoping-and-filling working face, including coalcutter 6, drag conveyor 7 and the hydraulic branch of filling coal mining are arranged in open-off cut
Frame 8 etc.；
D. it is disposed about Crushing Station 9 in mineral rights circle 3, break process is carried out to outdoor slag, makes its partial size < 30mm；
E. Crushing Station 9 is disposed about vertical transport system simultaneously, and broken outdoor slag is delivered to stoping-and-filling work
Make face；
F. it mines and is carried out simultaneously with packing job, while 6 coal cutting of coalcutter, the filled hydraulic branch of mining of outdoor slag
Frame 8 is delivered to goaf, and the packing job of the drilling depth is completed in filled coal mining hydraulic support reinforcement mechanism compacting；
G. step f is repeated, coal mining, the packing job of next drilling depth are continued, until completing entire end side stoping-and-filling work
Make the coal mining and filling in face.
Vertical transport system includes that waste bin 12 is put in stocker 10 on well, batching hole 11, underground, and stocker 10 is located on well
At the top of opencut, about 11 batching hole extends vertically through opencut extremely with 4 connection of transportation roadway, and outdoor slag passes through by stocker 10 on well
Batching hole 11 falls, and the haul rubber conveyer 13 of transportation roadway is dropped down by the drain hole in downhole gangue storehouse 12, through elevating conveyor 14
It is transported to working face, forms underground filling material transport system；11 diameter of batching hole of vertical transport system is 40cm.
Downhole gangue storehouse 12 from top to bottom successively includes buffer, storage bin and drain hole, the upper plan radius of buffer
It is identical as batching hole 11, become larger it is identical as columnar storage bin radius to lower plane, buffer be used to reduce filling material
Material throws into the impact force in storage bin, the radius R=2.5m of storage bin, total height 20m.The drain hole of storage bin lower part is presented
The small cone bucket shape in the big lower part in portion, filler are conveyed from storage bin by the haul adhesive tape that drain hole buffering falls to transportation roadway
Machine 13.
Outdoor slag is mainly ground mixture, through open-pit mine blast by Leather Belt Conveyance to Crushing Station.
Side stoping-and-filling working face in end uses filling coal mining hydraulic support 8, and filling process is as follows: in 6 coal cutting of coalcutter
Meanwhile outdoor slag is transported through underground filling material transport system to coal working face, is conveyed by the porous bottom-dump in bracket rear
The dumping pit 16 of machine 15, which unloads, drops down onto goaf, and by the reinforcement mechanism on 8 pedestal of filling coal mining hydraulic support to attal into
Row pushes compacting, forms the closely knit obturation for connecing top.
The new slag generated after working face mining is transported to Crushing Station after sorting on well, refills after broken into underground.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. recovery method is filled by a kind of row of adopting, open coal mine end side, characterized in that arrangement stoping-and-filling working face is helped at opencut end,
And vertical transport system is established in open coal mine mineral rights circle, side stoping-and-filling working face in end is delivered to after outdoor slag is crushed,
Bashing while back production, side pressure coal in safety coal extraction end while controlling side slope, comprising the following steps:
A. hole bottom is helped at opencut end, tunnels trunk roadway and back heading in parallel along seam inclination direction, the length of trunk roadway is big
In back heading；
B. transportation roadway and track lane are tunneled along bearing direction is parallel respectively in trunk roadway and the back heading end of a lane, penetrates through transportation roadway
With track lane, open-off cut and complete ventilating system are formed；
C. stoping-and-filling working face, including coalcutter, drag conveyor and filling coal mining hydraulic support are arranged in open-off cut；
D. it is disposed about Crushing Station in mineral rights circle, break process is carried out to outdoor slag；
E. Crushing Station is disposed about vertical transport system simultaneously, passes through vertically disposed batching hole and transportation roadway from opencut top
Broken outdoor slag is delivered to stoping-and-filling working face by connection；
F. it mines and is carried out simultaneously with packing job, while coalcutter coal cutting, the outdoor filled coal mining hydraulic support of slag is defeated
It send to goaf, the packing job of the drilling depth is completed in filled coal mining hydraulic support reinforcement mechanism compacting；
G. step f is repeated, coal mining, the packing job of next drilling depth are continued, until completing entire end side stoping-and-filling working face
Coal mining and filling.
2. recovery method is filled by a kind of row of adopting, open coal mine end side according to claim 1, characterized in that trunk roadway and pair are flat
At a distance of 20m, trunk roadway is tunneled at away from mineral rights circle 20m in lane, and the long 30m of back heading, transportation roadway and track lane are tunneled to away from mineral rights circle
At 20m.
3. recovery method is filled by a kind of row of adopting, open coal mine end side according to claim 1, it is characterized in that establishes is vertical defeated
Sending system includes stocker on well, batching hole, downhole gangue storehouse, and stocker is located at the top of opencut on well, sagging on batching hole
Directly through opencut to transportation roadway connection, outdoor slag falls by stocker on well through batching hole, passes through downhole gangue storehouse
Drain hole drops down onto the haul rubber conveyer of transportation roadway, is transported to working face through elevating conveyor, forms underground filling material transportation system
System.
4. recovery method is filled by a kind of row of adopting, open coal mine end side according to claim 1, it is characterized in that the underground cash established
Stone storehouse from top to bottom successively includes buffer, storage bin and drain hole, the radius R=2.5m of storage bin, total height 20m.
5. recovery method is filled by a kind of row of adopting, open coal mine end side according to claim 3, characterized in that the batching hole is straight
Diameter is 40cm.
6. recovery method is filled by a kind of row of adopting, open coal mine end side according to claim 1, characterized in that the outdoor slag
Predominantly ground mixture, through open-pit mine blast by Leather Belt Conveyance to Crushing Station.
7. recovery method is filled by a kind of row of adopting, open coal mine end side according to claim 1, characterized in that the outdoor slag
Partial size < 30mm after Crushing Station break process.
8. recovery method is filled by a kind of row of adopting, open coal mine end side according to claim 1, characterized in that end side filling
Stope uses filling coal mining hydraulic support, and filling process is as follows: while coalcutter coal cutting, outdoor slag is through underground
Attal transportation system transports to coal working face, unloaded by the dumping pit of the porous bottom-dump conveyer in bracket rear drop down onto it is mined out
Area, and carry out pushing compacting to attal by the reinforcement mechanism on filling coal mining hydraulic support foundation forms the closely knit top that connects
Obturation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910608448.4A CN110284883A (en) | 2019-07-08 | 2019-07-08 | Recovery method is filled by a kind of row of adopting, open coal mine end side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910608448.4A CN110284883A (en) | 2019-07-08 | 2019-07-08 | Recovery method is filled by a kind of row of adopting, open coal mine end side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110284883A true CN110284883A (en) | 2019-09-27 |
Family
ID=68020986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910608448.4A Pending CN110284883A (en) | 2019-07-08 | 2019-07-08 | Recovery method is filled by a kind of row of adopting, open coal mine end side |
Country Status (1)
| Country | Link |
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| CN (1) | CN110284883A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983525A (en) * | 2021-03-12 | 2021-06-18 | 中国矿业大学 | Inner soil discharge yard ditch remaining discharge method beneficial to ventilation of near-horizontal opencast coal mine stope |
| CN114320298A (en) * | 2022-01-05 | 2022-04-12 | 国家能源集团国源电力有限公司 | Coal mining method |
| CN116498326A (en) * | 2023-05-10 | 2023-07-28 | 中国矿业大学 | Collaborative mining method for end slope compression of open pit coal mine in cold region |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748071A (en) * | 2012-06-20 | 2012-10-24 | 鄂托克前旗长城煤矿有限责任公司 | Underground backfilling and transporting method for ground gangue of coal mine |
| CN102996131A (en) * | 2012-12-10 | 2013-03-27 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavating tunnels for advancing |
| CN103939102A (en) * | 2014-04-14 | 2014-07-23 | 中国矿业大学 | Coal mining method for recovering coal briquettes under open-pit mine final coal through solid filling |
| CN206174998U (en) * | 2016-10-26 | 2017-05-17 | 淮北工业建筑设计院有限责任公司 | Material conveying system is thrown to fly ash and waste rock |
| CN107313804A (en) * | 2017-06-29 | 2017-11-03 | 中国矿业大学 | A kind of open coal mine end side pressure coal filling fully mechanized mining recovery method |
| CN109882240A (en) * | 2019-03-29 | 2019-06-14 | 中国矿业大学 | A kind of outdoor end side pressure coal filling mining system |
-
2019
- 2019-07-08 CN CN201910608448.4A patent/CN110284883A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748071A (en) * | 2012-06-20 | 2012-10-24 | 鄂托克前旗长城煤矿有限责任公司 | Underground backfilling and transporting method for ground gangue of coal mine |
| CN102996131A (en) * | 2012-12-10 | 2013-03-27 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavating tunnels for advancing |
| CN103939102A (en) * | 2014-04-14 | 2014-07-23 | 中国矿业大学 | Coal mining method for recovering coal briquettes under open-pit mine final coal through solid filling |
| CN206174998U (en) * | 2016-10-26 | 2017-05-17 | 淮北工业建筑设计院有限责任公司 | Material conveying system is thrown to fly ash and waste rock |
| CN107313804A (en) * | 2017-06-29 | 2017-11-03 | 中国矿业大学 | A kind of open coal mine end side pressure coal filling fully mechanized mining recovery method |
| CN109882240A (en) * | 2019-03-29 | 2019-06-14 | 中国矿业大学 | A kind of outdoor end side pressure coal filling mining system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983525A (en) * | 2021-03-12 | 2021-06-18 | 中国矿业大学 | Inner soil discharge yard ditch remaining discharge method beneficial to ventilation of near-horizontal opencast coal mine stope |
| CN112983525B (en) * | 2021-03-12 | 2022-04-05 | 中国矿业大学 | Inner soil discharge yard ditch remaining discharge method beneficial to ventilation of near-horizontal opencast coal mine stope |
| CN114320298A (en) * | 2022-01-05 | 2022-04-12 | 国家能源集团国源电力有限公司 | Coal mining method |
| CN114320298B (en) * | 2022-01-05 | 2024-03-01 | 国家能源集团国源电力有限公司 | Coal mining method |
| CN116498326A (en) * | 2023-05-10 | 2023-07-28 | 中国矿业大学 | Collaborative mining method for end slope compression of open pit coal mine in cold region |
| CN116498326B (en) * | 2023-05-10 | 2023-10-31 | 中国矿业大学 | Collaborative mining method for end slope compression of open pit coal mine in cold region |
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Application publication date: 20190927 |