CN108194084A - Outdoor end side ore deposit continuous miner end side recovery method - Google Patents
Outdoor end side ore deposit continuous miner end side recovery method Download PDFInfo
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- CN108194084A CN108194084A CN201711326006.8A CN201711326006A CN108194084A CN 108194084 A CN108194084 A CN 108194084A CN 201711326006 A CN201711326006 A CN 201711326006A CN 108194084 A CN108194084 A CN 108194084A
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- bordroom
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- continuous miner
- coal
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000011084 recovery Methods 0.000 title claims description 14
- 239000003245 coal Substances 0.000 claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 claims abstract description 33
- 238000005065 mining Methods 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 9
- 230000008439 repair process Effects 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012882 sequential analysis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 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
- E21C41/26—Methods of surface mining; Layouts therefor
- E21C41/28—Methods of surface mining; Layouts therefor for brown or hard coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
- E21C47/02—Machines for obtaining or the removal of materials in open-pit mines for coal, brown coal, or the like
-
- 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
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)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention belongs to the application of coal excavation apparatus and the technical field of coal-mining method, specifically a kind of outdoor end side ore deposit continuous miner end side production practice.Using following steps, 101~mining face arrangement;102~setting equipment installs area in preparation;103~arrangement installation equipment;104~arrangement ventilating system;105~continuous miner is exploited.The present invention is met the requirement of end side ore deposit mechanical mining, is improved the Mechanization Level of end side ore deposit exploitation using the complete Mining Equipment of continuous miner, greatly improve production efficiency, the labor intensity of worker is reduced, and reduces the overburden amount of ground, reduces destruction and disturbance to environment.
Description
Technical field
The invention belongs to the application of coal excavation apparatus and the technical field of coal-mining method, specifically a kind of outdoor end side ore deposit is continuous
Coal mining generator terminal helps recovery method.
Background technology
After strip mining transformation, the remaining ore deposit remained in around Opent-pit limit is to hold side ore deposit, and pick statistics, end side ore deposit accounts for out
Adopt the 5% ~ 16% of gross reserves.High wall mining technology is exactly to be carried out using open coal mine stope end side exposure coal seam arrangement coal excavation apparatus
The technology of mining of raw coal, does not need to individually be removed or capital construction.
Under normal circumstances, after strip mining transformation for many years, the steep slope of crossing of height formed is in limiting equilibrium shape in mine
State, exploitation end side ore deposit certainly will influence the safety and stabilization of side slope.
More extensive in coal winning technology application of the foreign countries based on high wall mining machine, such process form not only has equipment
The advantages of flexibility and reliability, the even more process form with environment-friendly high-efficiency.It is remote to the extent of the destruction of earth's surface in this technique recovery process
Less than conventional surface production practice, massif vegetation is not damaged.
It is very big to electricity needs since high wall mining machine is bulky, it is expensive, therefore, adopted at home using end side
The coal mine of coal machine opposite end side ore deposit coal recovery is considerably less, and the relevant technologies develop slowly.In recent years, it is domestic with continuous miner
Work(is melted into, carrying out the exploitation of end side using continuous miner has faster development.
Invention content
The present invention to solve the above-mentioned problems, provides a kind of outdoor end side ore deposit continuous miner end side recovery method.
The present invention takes following technical scheme:A kind of outdoor end side ore deposit continuous miner end side recovery method, using as follows
Step,
101~mining face arrangement:A step is formed before ore deposit is helped at end, the back production coal since the side ore deposit working face one end of end, arrangement
Bordroom stays the coal column set between two bordrooms, a certain bordroom is set as bordroom bypass road every a certain number of bordrooms, described
Bordroom bypass road has been constructed before other bordrooms start back production and has been finished, it is desirable that supporting is good, and is divulged information with booster;Bordroom
The equipment repairing function of bypass road refers to equipment when personnel is needed to enter to repair, from the straight equipment breakdown point construction one of bordroom bypass road weight
Item repairs channel, and maintenance personal enters thing ore deposit point from this channel and carries out maintenance of equipment.
102~setting equipment installs area in preparation:According to the production practice requirement of end side, exploitation working face front step is helped at end
On, each equipment starts to assemble in order with reference to equipment arrangement.
103~arrangement installation equipment:It is set in installation area in preparation sequence mounting arrangements digging, transport and supporting and control
It is standby:Continuous miner --- transfer device --- protection ceiling --- control centre.
104~arrangement ventilating system:It adopts face and carries out negative pressure outside using the airborne wind turbine wind guiding tube of continuous miner to bordroom mouth
Ventilation, arranges wet scrubber on continuous miner or on sealing-tape machine.
105~continuous miner is exploited:Continuous miner is tunneled according to center line, and digging of bordroom chamber molding is completed
Coal breakage process, equipped with carrier loader on continuous miner, during cutting, shipment activity is continuously run, and coal is packed into middle part conveyer,
Coal is just transported to the transfer device closely followed and transferred to outside chamber mouth by conveyer, after continuous miner completes a bordroom, is moved back
Go out bordroom, enter next bordroom mouth and carry out back production, sequence back production, until stope terminates.Cooperation filling, it can be achieved that
The recycling of coal column implements stoping-and-filling, realizes the full recycling of coal resources
In the step 105, stoping-and-filling uses following methods, and at end, face implementation filling mining is adopted by side, and the first stage excavates
Bordroom bypass road and progress bordroom back production, while the bordroom after back production is filled;Second stage, the intensity of obturation reaches will
After asking, the coal column set will be stayed to recycle under the support of obturation, while filled in time to the space after Pillar Recovery, third
Stage fills bordroom bypass road, the final displacement realized to coal.
Filling mining technological parameter is:Bordroom, coal column and bordroom bypass road are of same size with cutting of continuous miner, coal
Room depth can determine that continuous miner uses vertical feed mode, three phases according to geological conditions with equipment capacity
After back production filling, not reserved coal pillar between bordroom.
After continuous miner exits bordroom, backfilled enclosed wall close the goaf is constructed in bordroom mouth installation particular manufacturing craft, and
It stays and sets filling eye, filling piping is extended in bordroom bypass road, and compartment setting pipe-line control valve, in a gang of construction filling in tunnel
Eye, and filling piping is installed, paste body filling slurry is delivered to goaf using filling piping fills, close after the completion of filling
Filling eye is closed, bordroom bypass road is filled using retrusive, and fire dam is set, and stay and set filling eye in access adit, close after filling
Filling eye is closed, slurry voluntarily solidifies, closely knit goaf.
Bordroom width is of same size with cutting of continuous miner;Continuous miner uses vertical feed mode.
Compared with prior art, the invention has the advantages that:
(1)The present invention is met the requirement of end side ore deposit mechanical mining, is improved end side ore deposit using the complete Mining Equipment of continuous miner
The Mechanization Level of exploitation, greatly improves production efficiency, reduces the labor intensity of worker, and reduces the overburden amount of ground, subtracts
Few destruction and disturbance to environment.
(2)Coordinate filling mining, can effectively stablize control terminal side, reduce the generation of secondary disaster, the filling to goaf
A large amount of gangues, waste solid and powder ash the like waste can be consumed, it is fixed that change, which is given up, reduces its pollution to surrounding enviroment.
Description of the drawings
Fig. 1 continuous miners end side exploitation plane schematic top plan view;
Help recovery profile schematic diagram in Fig. 2 continuous miners end;
Fig. 3 continuous miners end side exploitation ventilation equipment schematic diagram;
Fig. 4 equipment repairs access diagram;
Fig. 5 continuous miners end side filling mining process schematic I;
Fig. 6 continuous miners end side filling mining process schematic II;
Fig. 7 continuous miners end side filling mining process schematic III;
Fig. 8 continuous miners end side filling mining process schematic IV;
Fig. 9 continuous miners end side filling mining process schematic V;
1- bordrooms, 2- coal columns, 3- bordroom bypass roads, 4- continuous miners, 5- transfer devices, 6- protection ceilings, 7- control centres, 8-
Wind turbine, 9- air ducts, 10- repairing channels, 11- working face casting resin transport pipelines, 12- pipe-line control valves, the backfilled enclosed walls of 13-.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Exploitation working face arrangement bordroom is helped at end, the isolated coal pillar for setting different in width is stayed between adjacent two bordroom.Using even
Continuous coalcutter carries out bordroom back production, sequential analysis.According to exploitation requirement, it can be achieved that filling mining, needs using filling management system
System carries out mined out bordroom paste body filling, and formation, which is adopted, fills alternately operating.
It is as follows:
(1), mining face arrangement:
A step is formed before ore deposit is helped at end, the back production coal since the side ore deposit working face one end of end arranges bordroom 1, two bordrooms
Between stay the coal column 2 for setting different in width, a certain bordroom is set as bordroom bypass road 3 every a certain number of bordrooms.
(2), setting equipment install area in preparation:
It according to the production practice requirement of end side, is helped at end on exploitation working face front step, each equipment is opened in order with reference to equipment arrangement
Begin to assemble;
(3), arrangement installation equipment:
In installation area in preparation sequence mounting arrangements digging, transport, supporting and control device:Continuous miner 4 --- transfer device
5 --- protection ceiling 6-- control centre 7;
(4), arrangement ventilating system:
It adopts face and carries out exhaust ventilation outside for 1 mouthful to bordroom using 4 airborne 8 wind guiding tube 9 of wind turbine of continuous miner(It can be in continuous miner
Wet scrubber is arranged on 4 or on sealing-tape machine).
(5), continuous miner exploitation:
Continuous miner 4 is tunneled according to center line, and coal breakage process is completed in digging of 1 chamber of bordroom molding.On continuous miner 4
Equipped with carrier loader, during cutting, shipment activity is continuously run, and coal is packed into middle part conveyer, coal is just transported to tightly by conveyer
With transfer device 5 and transfer to outside chamber mouth, continuous miner 4 complete a bordroom 1 after, exit bordroom 1, enter next
A 1 mouthful of bordroom carries out back production.
The bordroom bypass road 3 has been constructed before other bordrooms 1 start back production and has been finished, it is desirable that supporting is good, and uses office
Fan ventilation, major function are used as when other bordrooms 1 tunnel, equipment repairing or note paddle(If using filling system)When make
With.
The equipment repairing function of the bordroom bypass road 3 refers to equipment when personnel is needed to enter to repair, from bordroom bypass road 3
The straight equipment breakdown point of weight, which is constructed one, repairs channel 10, and maintenance personal enters thing ore deposit point from this channel and carries out maintenance of equipment.
The control centre 7 can complete all function actions of equipment in control centre's remote control all devices,
Realize end side pit coal room exploitation.
Described continuous miner end side production practice parameter is:1 width of bordroom is the same as 4 cutting width of continuous miner
Identical, 1 depth of bordroom can be determined according to geological conditions with equipment capacity;Continuous miner 4 uses vertical feed mode,
The coal column 2 for setting different in width can be stayed between adjacent bordroom 1 according to technique.
Coordinate filling process, end side ore deposit coal recovery rate can be improved, and realize the stable equilibrium of high steep end side.Specifically
Step is poly- as follows:
(1)At end, side adopts face and implements filling mining, and it by the exploitation of working face and pack portion is three phases that technical principle, which is,:
First, it excavates bordroom bypass road 3 and carries out 1 back production of bordroom(First stage back production), while by the bordroom 1 after back production(Do not include coal
Room bypass road 3)It is filled(First stage fills);It secondly, will under the support of obturation after the intensity of obturation reaches requirement
The coal column set 2 is stayed to be recycled(Second stage back production), while the space after the recycling of coal column 2 is filled in time(Second stage is filled
It fills out), finally, bordroom bypass road 3 is filled(Phase III fills), the final displacement realized to coal.
(2)Arrange stowage unit:Ground cloth paste body filling equipment:Filler storage bin, Filling system, filling industry
Pump, ground casting resin transport pipeline;Working face paste body filling equipment is arranged:Working face casting resin transport pipeline(Abbreviation filling pipe
Road)11st, pipe-line control valve 12, backfilled enclosed wall 13.
(3)It is prepared by paste filling material:Occurrence condition and geological conditions based on coal seam, according to filling intensity, filling away from
From requirement prepare paste body filling slurry, filling slurry intensity is suitable, and cost is reasonable.Since second stage pillaring 2 need to be
1st stage filled and carries out under the conditions of the obturation roof supporting to be formed, and bearing capacity and the stability for filling scapus are particularly important,
So first stage obturation should be adhesive bond form, and connect top rate and must satisfy requirement.
(4)Filling mining technological parameter is:Bordroom 1, coal column 2 and bordroom bypass road 3 are the same as continuous 4 cutting width phases of milling machine
Together, 1 depth of bordroom can be determined according to geological conditions with equipment capacity, the use vertical feed mode of continuous miner 3, three
After a stage back production, not reserved coal pillar 2 between bordroom 1.
(5)Paste filling material fills mined out chamber:After continuous miner 4 exits bordroom 1, in 1 mouthful of installation die for special purpose of bordroom
Tool constructs backfilled enclosed 13 close the goaf of wall, and stay and set filling eye.Filling piping 11 is extended in bordroom bypass road 4, and compartment
Pipe-line control valve 12 is set, in a gang of construction filling eye in tunnel, and filling piping 11 is installed, is filled lotion using filling piping 11
It fills out slurry and is delivered to goaf and filled, after the completion of filling, closed filling eye.Bordroom bypass road 3 is filled using retrusive, in tunnel
Mouth setting fire dam 13, and stay and set filling eye, after filling, closed filling eye, slurry voluntarily solidifies, closely knit goaf.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It still can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is carried out etc.
With replacing, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (3)
1. a kind of outdoor end side ore deposit continuous miner end side recovery method, it is characterised in that:Using following steps,
101~mining face arrangement:A step is formed before ore deposit is helped at end, the back production coal since the side ore deposit working face one end of end, arrangement
Bordroom(1), two bordrooms(1)Between stay the coal column set(2), every a certain number of bordrooms(1)A certain bordroom is set as coal
Room bypass road(3), the bordroom bypass road(3)In other bordrooms(1)It has constructed and has finished before beginning back production, it is desirable that supporting is good, and
And it is divulged information with booster;Bordroom bypass road(3)Equipment repairing function refer to equipment when personnel is needed to enter to repair, from coal
Room bypass road(3)The straight equipment breakdown point of weight constructs one and repairs channel(10), maintenance personal enters thing ore deposit point from this channel and set
Standby repair;
102~setting equipment installs area in preparation:According to the production practice requirement of end side, helped at end on exploitation working face front step, respectively
Equipment starts to assemble in order with reference to equipment arrangement;
103~arrangement installation equipment:In installation area in preparation sequence mounting arrangements digging, transport and supporting and control device:Even
Continuous coalcutter(4)--- transfer device(5)--- protection ceiling(6)--- control centre(7);
104~arrangement ventilating system:It adopts face and utilizes continuous miner(4)Airborne wind turbine(8)Wind guiding tube(9)To bordroom(1)Outside mouthful
Exhaust ventilation is carried out, in continuous miner(1)Wet scrubber is arranged on upper or sealing-tape machine;
105~continuous miner is exploited:Continuous miner(4)It is tunneled according to center line, bordroom(1)Digging of chamber is molded, complete
Into coal breakage process, continuous miner(4)It is upper that during cutting, shipment activity is continuously run equipped with carrier loader, will coal to be packed into middle part defeated
Machine is sent, coal is just transported to the transfer device closely followed by conveyer(5)And it transfers to outside chamber mouth, continuous miner(4)Complete one
A bordroom(1)Afterwards, bordroom is exited(1), enter next bordroom(1)Mouth carries out back production, sequence back production, until stope
Terminate.
2. outdoor end side ore deposit continuous miner end side recovery method according to claim 1, it is characterised in that:The step
In rapid 105, stoping-and-filling use following methods, end side adopt face implement filling mining, the first stage, excavate bordroom bypass road and into
Row bordroom back production, while the bordroom after back production is filled;Second stage after the intensity of obturation reaches requirement, is filling
The coal column set will be stayed to recycle under the support of body, while the space after Pillar Recovery is filled in time, the phase III, bordroom
Bypass road is filled, the final displacement realized to coal;
Filling mining technological parameter is:Bordroom, coal column and bordroom bypass road are of same size with cutting of continuous miner, and bordroom is deep
Degree can determine that continuous miner uses vertical feed mode, three phases back production according to geological conditions with equipment capacity
Afterwards, not reserved coal pillar between bordroom;
After continuous miner exits bordroom, backfilled enclosed wall close the goaf is constructed, and stay and set in bordroom mouth installation particular manufacturing craft
Eye is filled, filling piping is extended in bordroom bypass road, and compartment setting pipe-line control valve, in a gang of construction filling eye in tunnel, and
Filling piping is installed, paste body filling slurry is delivered to goaf using filling piping fills, after the completion of filling, closed filling
Eye, bordroom bypass road are filled using retrusive, and fire dam is set, and stay and set filling eye in access adit, after filling, closed filling
Eye, slurry voluntarily solidify, closely knit goaf.
3. outdoor end side ore deposit continuous miner end side recovery method according to claim 2, it is characterised in that:Bordroom(1)
The same continuous miner of width(4)One time cutting is of same size;Continuous miner(4)Using vertical feed mode.
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CN201711326006.8A CN108194084B (en) | 2017-12-13 | 2017-12-13 | End slope mining method of continuous coal mining machine for open-pit end slope mine |
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CN201711326006.8A CN108194084B (en) | 2017-12-13 | 2017-12-13 | End slope mining method of continuous coal mining machine for open-pit end slope mine |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108868878A (en) * | 2018-06-25 | 2018-11-23 | 山东科技大学 | A kind of house column type paste body filling displacement coal-mining method |
CN109098717A (en) * | 2018-10-12 | 2018-12-28 | 太原科技大学 | A kind of outdoor highwall coal mining compaction type transport device |
CN109296369A (en) * | 2018-10-12 | 2019-02-01 | 太原科技大学 | A kind of outdoor successive coal-mining face highwall coal recovery process |
CN109882239A (en) * | 2019-03-27 | 2019-06-14 | 中国矿业大学 | A kind of outdoor end side pressure emanant filling mining method of coal |
CN109915146A (en) * | 2019-03-22 | 2019-06-21 | 中国煤炭科工集团太原研究院有限公司 | A kind of long-range control highwall coalcutter highwall laneway type recovery method |
CN109931066A (en) * | 2019-03-22 | 2019-06-25 | 中国煤炭科工集团太原研究院有限公司 | A kind of open pit slope mining system |
CN110056356A (en) * | 2019-03-22 | 2019-07-26 | 中国煤炭科工集团太原研究院有限公司 | A kind of step-by-step movement travelling platform |
CN110578518A (en) * | 2019-08-28 | 2019-12-17 | 中国煤炭科工集团太原研究院有限公司 | Vertical feed type mining process suitable for fully mechanized mining face of thin coal seam |
CN114000883A (en) * | 2021-11-02 | 2022-02-01 | 中国矿业大学 | Open pit coal mine end slope coal pressing, mining and charging integrated recovery device and method |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108868878A (en) * | 2018-06-25 | 2018-11-23 | 山东科技大学 | A kind of house column type paste body filling displacement coal-mining method |
CN109098717A (en) * | 2018-10-12 | 2018-12-28 | 太原科技大学 | A kind of outdoor highwall coal mining compaction type transport device |
CN109296369A (en) * | 2018-10-12 | 2019-02-01 | 太原科技大学 | A kind of outdoor successive coal-mining face highwall coal recovery process |
CN109915146A (en) * | 2019-03-22 | 2019-06-21 | 中国煤炭科工集团太原研究院有限公司 | A kind of long-range control highwall coalcutter highwall laneway type recovery method |
CN109931066A (en) * | 2019-03-22 | 2019-06-25 | 中国煤炭科工集团太原研究院有限公司 | A kind of open pit slope mining system |
CN110056356A (en) * | 2019-03-22 | 2019-07-26 | 中国煤炭科工集团太原研究院有限公司 | A kind of step-by-step movement travelling platform |
CN110056356B (en) * | 2019-03-22 | 2020-12-08 | 中国煤炭科工集团太原研究院有限公司 | Stepping type walking platform |
CN109882239A (en) * | 2019-03-27 | 2019-06-14 | 中国矿业大学 | A kind of outdoor end side pressure emanant filling mining method of coal |
CN110578518A (en) * | 2019-08-28 | 2019-12-17 | 中国煤炭科工集团太原研究院有限公司 | Vertical feed type mining process suitable for fully mechanized mining face of thin coal seam |
CN110578518B (en) * | 2019-08-28 | 2021-09-14 | 中国煤炭科工集团太原研究院有限公司 | Vertical feed type mining process suitable for fully mechanized mining face of thin coal seam |
CN114000883A (en) * | 2021-11-02 | 2022-02-01 | 中国矿业大学 | Open pit coal mine end slope coal pressing, mining and charging integrated recovery device and method |
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