CN109779631A - A kind of lane Yu Juedan protrusive building block filling coal mining method - Google Patents
A kind of lane Yu Juedan protrusive building block filling coal mining method Download PDFInfo
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- CN109779631A CN109779631A CN201910017830.8A CN201910017830A CN109779631A CN 109779631 A CN109779631 A CN 109779631A CN 201910017830 A CN201910017830 A CN 201910017830A CN 109779631 A CN109779631 A CN 109779631A
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Abstract
A kind of lane Yu Juedan protrusive building block filling coal mining method, stope drift active workings use to adopt generation pick and form auxiliary fortune crossheading, arrangement of the pre-tunnel laneway as air return way as filling slurry and Coal Transport；Working face extraction and goaf filling use comprehensive mechanization building block filling coal mining technique；The coal-mining method of exploitation, filling sequence is promoted towards section boundary direction with filling coal mining working face.Pre- pick air return way is formed before working face extraction, and auxiliary fortune crossheading is formed in the way of coalcutter cut node coal with coal working face propulsion.This coal-mining method simple process, feasibility is strong, full exploiting field technically can be achieved without coal pillar mining, working section recovery is high, it not only solves retrusive digging and connects nervous technical problem, and so that hard-to-recovery reserve realization safety, Quick mechanical " under three " is melted to adopt and is become a reality while working face fast implements production with filling with adopting by protrusive arrangement.
Description
Technical field
The invention belongs to comprehensive mechanizations without coal pillar mining " under three " hard-to-recovery reserve group's coal-mining technique field, specifically a kind of
The lane Yu Juedan protrusive building block filling coal mining method.
Background technique
China " under three " hard-to-recovery reserve resource distribution is extensive, and reserves are big, and tradition takes the recovery method stayed and set boundary coal column
Hidden danger has been buried for the exploitation of coal resources strategy: (1) having wasted a large amount of high-quality resource, and (2), which have to stay in spontaneous combustion tendency coal seam, to be set
Bearing block long term stability be difficult to guarantee, (3) interfere mining areas of mine, working face arrangement；Other solids such as spoil, lotion, ultrahigh water
Common problem existing for placement method is that high investment, slow effect and ground settlement effect not can guarantee；How to realize most economically
It liberates pressed resource and guarantees that control surface control effect is to need the technological difficulties of tackling key problem at present.
Summary of the invention
The purpose of the present invention is pushing the problem that coal back production causes surface buildings deformation impaired for village, one kind is provided
The lane Yu Juedan protrusive building block filling coal mining method.
The present invention takes following technical scheme: a kind of lane Yu Juedan protrusive building block filling coal mining method, including following step
Suddenly,
A exploiting field transportation roadway) is dug in exploiting field lower limits and the exploiting field lane Fu Yun is connected with main haulage roadway and auxiliary fortune main entry respectively；?
Upper bound digging exploiting field air return lane in exploiting field is connected with return air main entry.
B) from exploiting field transportation roadway and the exploiting field lane Fu Yun notch, by the exploiting field of incision digging tunnel to exploiting field upper bound
Air return lane forms pre- pick section air return way.
C) from the exploiting field lane Fu Yun other side notch, and reserved collection inter-road protection coal pillar, by incision digging tunnel to collection
Inter-road protection coal pillar boundary is formed with the pick auxiliary fortune crossheading of section.
D) from collection inter-road protection coal pillar boundary open-off cut, coal working face is formed, and filling coal mining is arranged in cutting eye
Equipment；Crossheading conveying coal equipment is arranged in the section haulage gate of lane cutting staying for a rear；The auxiliary fortune of lane section is stayed cut a rear
Arrange that main line filling pipe and equipment train form stowage unit in crossheading.
E) promote coal working face to exploiting field air return lane protection coal pillar from cutting from eye protrusive, working face is with adopting with filling, lane
Implement the coal mining and packing job of a step pitch to adopt generation pick in road.
F) as working face is persistently pushed ahead, building block packing job is carried out in rear goaf, while it is suitable to substitute both sides
The roadside support operation of slot.
G it while) working face is persistently pushed ahead, is dug by coalcutter coal cutting instead of tunnel with the pick auxiliary fortune crossheading of section
Into the operation that completion crossheading extends forward.
H step F, G) is repeated, the coal mining, filling and roadside support operation of next step pitch are continued, until working face mining
It finishes.
The step D) in, filling coal mining equipment includes coalcutter, drag conveyor, filling hydraulic support and building block system
Make mold；Crossheading conveying coal equipment includes jaw crusher, bridge conveyor and belt conveyor；Stowage unit includes that main line fills
Fill out pipe and equipment train.
Compared with prior art, the present invention efficiently solves the problems, such as that ground settlement is big when coal under villages back production, and effectively
Improve the damage of surface buildings；Using the layout of actual mining roadway mode in the lane Yu Juedan, working face operation is effectively reduced
Preceding tunnelling amount, working face time is short, and initial investment is few, and mine can realize quick payoffs；It is filled and is protected by building block
The adjoining rock stability effect for having demonstrate,proved gob side entry retaining, realizes no coal pillar mining, improves resource recovery, while eliminating lane collateral branch
This process is protected, underground work amount is further reduced, improves back production efficiency.It uses and passes through coalcutter in a manner of adopting generation pick
Coal cutting is tunneled instead of crossheading, is reduced interfering with each other between each process during mining, is simplified down-hole coal excavation system.The present invention
Due to using the continuous bashing of building block, pack completeness is high, therefore filling effect is good.Goaf is enriched simultaneously, is prevented residual coal and is lured
Natural calamity is sent out, safety coal extraction is ensure that, and efficiently controlled the movement of Overlying Strata In A Face, reduces subsidence.
Pack completeness height is highlighted in terms of liberation building pushes coal, control effect is good, connects the good unique technology advantage of top effect, ensures
The safety of above ground structure.
Detailed description of the invention
Fig. 1 is roadway layout figure I of the invention；
Fig. 2 is roadway layout figure II of the invention；
Fig. 3 is working face layout drawing of the invention；
Fig. 4 is Fig. 3 I-I sectional view；
In figure: the transportation roadway of the exploiting field 1-；The exploiting field the 2- lane Fu Yun；The exploiting field 3- air return lane；4- digs section air return way in advance；5- collection inter-road is protected
Protect coal column；6- protection coal pillar boundary；7- is with the pick auxiliary fortune crossheading of section；8- cuts eye；9- coalcutter；10- drag conveyor；11- fills
Fill out hydraulic support；12- building block makes mold；13- stays lane section haulage gate；14- jaw crusher；15- bridge conveyor；
16- belt conveyor；17- stays the auxiliary fortune crossheading of lane section；18- main line filling pipe；19- equipment train；20- building block obturation.
Specific embodiment
Implementation of the invention is further described with reference to the accompanying drawing:
A exploiting field transportation roadway 1 and the exploiting field lane Fu Yun 2) are dug in exploiting field lower limits, is connected with main haulage roadway and auxiliary fortune main entry；?
Exploiting field upper bound digs exploiting field air return lane 3, is connected with return air main entry.
B) from 2 notch of exploiting field transportation roadway 1 and the exploiting field lane Fu Yun, by adopting for incision digging tunnel to exploiting field upper bound
Area's air return lane 3 forms pre- pick section air return way 4.
C) from 2 other side notch of the exploiting field lane Fu Yun, and reserved collection inter-road protection coal pillar 5, extremely by incision digging tunnel
Collect at inter-road protection coal pillar boundary 6, is formed with the pick auxiliary fortune crossheading 7 of section.
D) from collection inter-road protection coal pillar boundary open-off cut 8, coal working face is formed, and arrange coalcutter in cutting eye 8
9, drag conveyor 10, filling hydraulic support 11, building block production mold 12 form filling coal mining equipment.Cutting staying for 8 rear of eye
Arrange that jaw crusher 14, bridge conveyor 15, belt conveyor 16 form crossheading conveying coal equipment in lane section haulage gate 13.
Arrange that main line filling pipe 18, equipment train 19 form stowage unit in the auxiliary fortune crossheading 17 of lane section cutting staying for 8 rear of eye.From cutting
Protrusive promotes coal working face to exploiting field air return lane protection coal pillar at eye 8, and for working face with adopting with filling, tunnel is real to adopt generation pick
Apply the coal mining and packing job of a step pitch.
E) as working face is persistently pushed ahead, building block packing job is carried out in rear goaf, while it is suitable to substitute both sides
The roadside support operation of slot.
F it while) working face is persistently pushed ahead, is dug by coalcutter coal cutting instead of tunnel with the pick auxiliary fortune crossheading 7 of section
Into the operation that completion crossheading extends forward.
G step E, F) is repeated, the coal mining, filling and roadside support operation of next step pitch are continued, until working face mining
It finishes.
It mines, the specific steps of filling cycle operation, using " three or eight system " job placement, two classes of one class of back production maintenance.It is first
First start coalcutter 9, feed is chamfer by buttock, stays Triangle Coal；After coal cutting, spy before filling hydraulic support 11 stretches out immediately
Beam prevents end face from emitting cash, while bracket pushing tow drag conveyor 10 forward；At bracket rear, adjustment building block production mold 12 is high
Degree, to adapt to the variation of mining height；The slip casting into mold from main line filling pipe 18, forms building block after solidification；The return of coalcutter 9 cuts three
Angle coal, while starting bracket rear movable post, it draws and moves building block production mold 12, be completed at the same time shifting frame, moving manner puts up group for three
Branch is successively moved with machine；Since the coal mining packing job of working face is filled using building block, therefore roadside support can be played the role of, safeguarded
The stabilization of both sides crossheading country rock, is respectively formed the lane Xin Liu section haulage gate 13 and stays the auxiliary fortune crossheading 17 of lane section.Meanwhile
Jaw crusher 14, bridge conveyor 15, equipment train 19, main line filling pipe 18 in two lanes are moved with the propulsion of working face
It is dynamic.Auxiliary fortune crossheading is to adopt generation pick；The above coal mining of circulation, filling procedure, until completing entire working face extraction work.
The method of the present invention covers the experiment of the one exploiting field south wing of the coal seam 2#, 20101 working face under purple bright coal mine village and obtains satisfactorily
Success.Ground settlement is uniform, practical settlement value 32mm, and horizontal distortion value is 0.46mm/m, belongs to pole slight damage；Working face
Resource recovery liberates 36.77 ten thousand tons of pressed coking coal resource up to 97.6%, creates about 1.1 hundred million yuan of economic interests, it is contemplated that we
Method is that the exploiting field Nan Yi (6 working faces) creates economic benefit up to 7.5 hundred million yuan.
Claims (2)
1. a kind of lane Yu Juedan protrusive building block filling coal mining method, it is characterised in that: include the following steps,
A) exploiting field lower limits digging exploiting field transportation roadway (1) and the exploiting field lane Fu Yun (2) respectively with main haulage roadway and auxiliary fortune main entry
It is connected；In exploiting field, upper bound digging exploiting field air return lane (3) is connected with return air main entry；
B) from exploiting field transportation roadway (1) and the exploiting field lane Fu Yun (2) notch, by adopting for incision digging tunnel to exploiting field upper bound
Area's air return lane (3) forms pre- pick section air return way (4)；
C) from the exploiting field lane Fu Yun (2) other side notch, and reserved collection inter-road protection coal pillar (5), extremely by incision digging tunnel
Collect at inter-road protection coal pillar boundary (6), is formed with the pick auxiliary fortune crossheading (7) of section；
D) from collection inter-road protection coal pillar boundary open-off cut (8), coal working face is formed, and arrangement filling is adopted in cutting eye (8)
Coal equipment；Crossheading conveying coal equipment is arranged in lane section haulage gate (13) cutting staying for eye (8) rear；Cutting eye (8) rear
Stay arrangement main line filling pipe (18) and equipment train (19) composition stowage unit in the auxiliary fortune crossheading (17) of lane section；
E) promote coal working face to exploiting field air return lane protection coal pillar from cutting at eye (8) protrusive, working face is with adopting with filling, tunnel
To adopt generation pick, implement the coal mining and packing job of a step pitch；
F) as working face is persistently pushed ahead, building block packing job is carried out in rear goaf, while substituting both sides crossheading
Roadside support operation；
G while) working face is persistently pushed ahead, tunnelling is replaced by coalcutter coal cutting with pick section auxiliary fortune crossheading (7),
Complete the operation that crossheading extends forward；
H step F, G) is repeated, the coal mining, filling and roadside support operation of next step pitch are continued, until working face mining finishes.
2. protrusive building block filling coal mining method in the lane Yu Juedan according to claim 1, it is characterised in that: the step D)
In, filling coal mining equipment includes coalcutter (9), drag conveyor (10), filling hydraulic support (11) and building block production mold
(12)；Crossheading conveying coal equipment includes jaw crusher (14), bridge conveyor (15) and belt conveyor (16)；Stowage unit
Including main line filling pipe (18) and equipment train (19).
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| CN201910017830.8A CN109779631A (en) | 2019-01-09 | 2019-01-09 | A kind of lane Yu Juedan protrusive building block filling coal mining method |
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| CN201910017830.8A CN109779631A (en) | 2019-01-09 | 2019-01-09 | A kind of lane Yu Juedan protrusive building block filling coal mining method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111997614A (en) * | 2020-09-07 | 2020-11-27 | 河南理工大学 | Method for winding thin coal belt on forward fully-mechanized coal mining face |
| CN112627820A (en) * | 2020-12-30 | 2021-04-09 | 国电建投内蒙古能源有限公司 | Coal pillar-free mining method for 'three lower' coal pressing |
| CN114233293A (en) * | 2021-11-11 | 2022-03-25 | 中煤科工生态环境科技有限公司 | Coal mine non-section coal pillar mining and solid waste filling method |
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| 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 |
| CN204253051U (en) * | 2014-10-10 | 2015-04-08 | 马振凯 | A kind of large scale building block for roadside support |
| CN108756882A (en) * | 2018-05-29 | 2018-11-06 | 中煤能源研究院有限责任公司 | A kind of district sublevel entry adopts recovery method without the short length of filling of driving formula |
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2019
- 2019-01-09 CN CN201910017830.8A patent/CN109779631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2138640C1 (en) * | 1998-08-20 | 1999-09-27 | Институт угля и углехимии СО РАН | Method for development of thick gently dipping coal seam |
| RU2390633C1 (en) * | 2009-02-05 | 2010-05-27 | Учреждение Российской академии наук Институт горного дела Сибирского отделения РАН | Procedure for development of steeply pitching beds of coal |
| CN101498225A (en) * | 2009-02-24 | 2009-08-05 | 太原理工大学 | U+I type ventilating system for top-coal caving face |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111997614A (en) * | 2020-09-07 | 2020-11-27 | 河南理工大学 | Method for winding thin coal belt on forward fully-mechanized coal mining face |
| CN112627820A (en) * | 2020-12-30 | 2021-04-09 | 国电建投内蒙古能源有限公司 | Coal pillar-free mining method for 'three lower' coal pressing |
| CN114233293A (en) * | 2021-11-11 | 2022-03-25 | 中煤科工生态环境科技有限公司 | Coal mine non-section coal pillar mining and solid waste filling method |
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