CN106761750A - Slot type recovery method is built in the longwell plane milling of half-edge coal seam longitudinal direction - Google Patents
Slot type recovery method is built in the longwell plane milling of half-edge coal seam longitudinal direction Download PDFInfo
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- CN106761750A CN106761750A CN201611217932.7A CN201611217932A CN106761750A CN 106761750 A CN106761750 A CN 106761750A CN 201611217932 A CN201611217932 A CN 201611217932A CN 106761750 A CN106761750 A CN 106761750A
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- coal seam
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
Slot type recovery method is built in longwell plane milling in half-edge coal seam longitudinal direction of the present invention, belongs to steeply-inclined seam mining technical field；Technical problem to be solved is to provide a kind of steeply-inclined seam mining method that can be reduced labor strength, improve working environment at coal mines, improve coal recovery rate；The technical scheme for using for：The first step, exploitation tunnel is respectively arranged in coal seam upper and lower part；Second step, ore deposit hole is slipped by certain spacing construction multiple, and coal transportation system is arranged in the exploitation tunnel of bottom；3rd step, in the exploitation tunnel of top, is exploited using coal-cutting machinery, and the coal mining between top exploitation tunnel and bottom exploitation tunnel in addition to protection coal pillar is complete；4th step, carries out goaf filling；5th step, repeats the first step to the 4th step, realizes that the safety and high efficiency of half-edge coal seam, gangue low cost are backfilled, ecological environment is effectively protected and resource suitable development is utilized；The present invention is especially suitable for the exploitation of the half-edge coal seam of 2~20m of thickness.
Description
Technical field
Slot type recovery method is built in longwell plane milling in half-edge coal seam longitudinal direction of the present invention, belongs to steeply-inclined seam mining technology neck
Domain, is the pit mining method of the half-edge coal seam of 2-20m more particularly to for thickness.
Background technology
As the increase of exploitation of coal resources intensity, seam mining condition are increasingly sophisticated, China each province faces worried
The mining problem of inclined seam.China's steeply-inclined seam mining mine has over one hundred place, is distributed mainly on Urumchi, Yao Jie, north
Capital, Huainan, open Luan, Xuzhou, long wide, Nan Tong, Zixing, big more than 20 mining areas such as logical.It is main in terms of steeply-inclined seam mining method
The three major types type based on blasting process, fully mechanized mining and hydromining technique is formd, wherein, the super high seam water of fully mechanized mining
Divide equally a section mining coal-mining method, high seam move towards longwall full-mechanized mining technique coal caving mining method and sliding top fine strain of millet support Sub-Level Caving adopt
Coal method, the flexible shield mining in the false dip of blasting process, puppet of bowing tiltedly move towards the intensive coal-mining method of longwell segment level, tunnel
Coal caving mining method, and Tonghua, Jilin Province, the hydraulic mining method in Liaoning Nan Piaodeng mining areas achieve good application effect.Fully mechanized mining
Technique is subject to the strict restriction at coal seam thickness and inclination angle, mainly solves inclination angle and stablizes more than 20m, preservation more than 60 °, thickness
The mining problem of severe inclined thick coal seam, blasting process and hydromining technique can apply to opening for thickness 2~20m half-edge coal seams
Adopt, but blasting process due to by the way of coal blasting, existing, coal recovery rate is low, labor strength big, underground work
The subject matters such as bad environments；Hydromining technique is due to using the up to high-pressure water jet coal breakage of 20 MPa and using pipeline hydraulic fortune
Defeated part coal, production system energy loss is big in High-Pressure Water cyclic process, has that water consumption is big, power consumption is big, is produced into
This high subject matter.On the other hand, in terms of working face Surrounding Rock Control, due on goaf during steeply-inclined seam mining
Portion's country rock is along inclined direction rolled after being caving（It is sliding）Dynamic filling bottom goaf so that face surrounding rock stability top is worst, middle part
Take second place, bottom preferably, Face Ground Pressure Behavior feature is presented asymmetry along coal seam tendency direction, and the Surrounding Rock Control of working face is difficult
Degree is big, influences the production safety of working face.Therefore, the safety and high efficiency of thickness 2~20m half-edge coal seams how is realized, is
The significant technology issues that coal in China industry faces.
The content of the invention
The present invention overcomes the shortcomings of that prior art is present, and technical problem to be solved can reduce workman to provide one kind
Labour intensity, improvement working environment at coal mines, raising coal recovery rate, reduce water consumption and power consumption, simplified transportation system, reduction
Production cost, Optimization Packing space structure, simplify filling process system, reduce gangue filling cost, backfill ground gangue,
Liberation three pushes coal, preserves the ecological environment, and effectively controls face surrounding rock, improves the half-edge coal seam longitudinal direction length of reliable degree
Slot type recovery method is built in wall plane milling.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：The longwell plane milling of half-edge coal seam longitudinal direction is built
Slot type recovery method, it is characterised in that carry out as steps described below：
The first step, according to the occurrence condition of half-edge coal seam, analyzes coal seam and coffer mechanics feature, rationally determine mining width,
The coal-face such as protection coal pillar is main between the interregional protection coal pillar of level interval, strike length, mining of adjacent and adjacent phases
Technical parameter, according to these technical parameters, exploitation tunnel is respectively arranged in coal seam upper and lower part；
Second step, according to coal-face important technological parameters, slips ore deposit and sets by certain multiple vertical satisfactions of spacing construction
Ore deposit hole is slipped for service requirement, tunnel and bottom exploitation tunnel are exploited in the ore deposit hole insertion top that slips, in the exploitation tunnel of bottom
Arrangement coal transportation system, coal transportation system is located at and slips ore deposit hole lower section；
3rd step, slips after the construction completion of ore deposit hole, in the exploitation tunnel of top, is exploited using coal-cutting machinery, will during exploitation
Stay and set enough equipment operation safeguard protection coal columns, adopt the coal for falling and slip ore deposit hole from the coal for slipping to bottom exploitation tunnel by described
Transportation system, coal-cutting machinery circulation is mined, and the coal that top is exploited between tunnel and bottom exploitation tunnel in addition to protection coal pillar is opened
Adopt；
4th step, according to strata control around longwang face and ground ecological environmental protection requirement, it is determined whether carry out goaf filling；Need
When carrying out goaf filling, according to goaf structural mechanics feature and mining, filling production technology arrangement, it is determined that filling main skill
Art parameter；The closed facility of mouth under constructing goaf in discarded bottom exploitation tunnel first, using stowage unit by bastard coal
After the filling slurries such as stone are successively filled to the space that exploitation tunnel and goaf are discarded in bottom from bottom to top, opened on discarded top
Adopt and constructed in tunnel goaf closed facility suitable for reading, the filling slurries such as gangue are discarded the space in exploitation tunnel full of top,
Realize the three-dimensional of goaf, ordering, full volumetric filling；
5th step, repeats the first step to the 4th step, realizes that the safety and high efficiency of thickness 2~20m half-edge coal seams, gangue are low
Cost backfill, ecological environment are effectively protected and resource suitable development is utilized.
In implementation process of the first step to the 5th step, according to coal seam country rock and the mechanical structure of goaf filling body
Signature analysis, stays protection coal pillar between the interregional protection coal pillar of the mining of adjacent for setting 5~10m, the adjacent phases of 5~10m, it is ensured that work
Make face production safety.
Coal-cutting machinery in 3rd step is plane milling formula coal-winning machine, and plane milling formula coal-winning machine carries out the descending plane of horizontal bar banding
Milling exploits to form slot type goaf, adopts after staying the equipment for setting 3~8m to run safeguard protection coal column to certain depth, guarantee lower section,
Milling formula coal-winning machine will be dug by elevator and be promoted to top exploitation tunnel, or detour to top exploitation tunnel through bottom connection roadway
The next circulation of row.
Constructed from bottom to top using anti-well rig in the ore deposit hole that slips.
The coal transportation system is ribbon conveyer.
The present invention has the advantages that compared with prior art.
1st, the present invention solves the safety and high efficiency of thickness 2~20m half-edge coal seams, the backfill of gangue low cost, life
The state environment problem that effectively protection and resource suitable development are utilized, and for the safety and high efficiency of conditions of similarity solid mineral deposit is carried
Strong technical support is supplied.
2nd, it is mechanization coal breakage that the present invention change big gun to adopt coal breakage and water jets power coal breakage high, realizes adopting coal breakage by slipping ore deposit hole
Charcoal, compared to blasting process, mechanization coal breakage is realized using plane milling formula coal-winning machine from continuative transport is slipped, and reduces workman's work strong
Spend, improve working environment at coal mines, improve coal recovery rate；Compared to hydromining technique, using plane milling formula coal-winning machine by certainly
Realize that coal body is crushed again, it is to avoid the energy loss of production system in High-Pressure Water cyclic process, improve efficiency of energy utilization,
Water consumption and power consumption have been saved, water resource and ecological environment has been protected, production cost has been reduced；Plane milling formula coal-winning machine is fully borrowed
Help deadweight to realize that coal is longitudinally broken and ensures itself working stability, reduce coal breakage cost；Coal is used and slips continuative transport certainly
Mode, improve conevying efficiency, reduce cost of transportation.
3rd, the goaf in the present invention is longitudinal slot type space structure, be advantageously implemented the three-dimensional of goaf, ordering,
Full volumetric is filled, and simplifies filling process system, reduces gangue filling cost, advantageously accounts for the ground stacking of gangue
Exploitation of coal resources problem is covered under the three of " under building, under railway, under water body ", money is effectively preserved the ecological environment and ensure
Source suitable development is utilized.
4th, it is of the invention in the presence of goaf filling body, compared to the exploitation side that whole caving methods manage goaf top plate
Method, goaf filling body and Seam Roof And Floor can form good vertical mechanical structure, can control long-term effectively mined out
Area's country rock, has ensured shaft production safety.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is tunnel in the present invention, slips the schematic perspective view in ore deposit hole.
Fig. 2 is plane milling formula coal-winning machine horizontal bar banding working from top down technology arrangement coal bed profile figure.
In figure：1 is half-edge coal seam, and 2 is that tunnel is exploited on top, and 3 is that tunnel is exploited in bottom, and 4 to slip ore deposit hole, and 5 is adjacent
Protection coal pillar between the stage, 6 is the interregional protection coal pillar of mining of adjacent, and 7 is that equipment runs safeguard protection coal column, and 8 adopt for plane milling formula
Coal machine.
Specific embodiment
Embodiment
As shown in Figure 1 and Figure 2, if the Roof And Floor Stability of half-edge coal seam 1 is good, occurrence condition is good, high-dipping of the present invention
Slot type recovery method is built in the longwell plane milling of coal seam longitudinal direction, is carried out as steps described below：
The first step, according to the occurrence condition of half-edge coal seam 1, analyzes coal seam and coffer mechanics feature, rationally determine mining width,
The coal-face master such as protection coal pillar 5 between the interregional protection coal pillar 6 of level interval, strike length, mining of adjacent and adjacent phases
Technical parameter is wanted, according to these technical parameters, by 20~40m of level interval, exploitation lane is respectively arranged in coal seam upper and lower part
Road；
Second step, according to coal-face important technological parameters, is constructed many from bottom to top by 10~30m of spacing using anti-well rig
Individual satisfaction is slipped ore deposit and equipment service requirement, 0.8~1.4m of diameter and slips ore deposit hole 4, described to slip the insertion top of ore deposit hole 4 exploitation tunnel 2
Tunnel 3 is exploited with bottom, coal transportation system is arranged in the exploitation tunnel 3 of bottom, coal transportation system is located at and slips under ore deposit hole 4
Side；
3rd step, slips after the construction completion of ore deposit hole 4, is exploited in tunnel 2 on top, using plane milling formula coal-winning machine 8 according to 2~4m's
The exploitation length of mining width and 100~500m carries out horizontal bar banding working from top down, adopts to certain depth, guarantee lower section and stays and set
After the equipment operation safeguard protection coal column 7 of 3~8m, milling formula coal-winning machine 8 will be dug by elevator and be promoted to top exploitation tunnel 2, or
Being detoured to top exploitation tunnel 2 through bottom connection roadway carries out next circulation, adopts the coal for falling and is slipped to certainly by the ore deposit hole 4 that slips
The coal transportation system in tunnel 3 is exploited in bottom, and plane milling formula coal-winning machine 8 is circulated is mined, and top is exploited into tunnel 2 and bottom exploitation lane
Coal mining between road 3 in addition to protection coal pillar is complete；
4th step, according to strata control around longwang face and ground ecological environmental protection requirement, it is determined whether carry out goaf filling；Need
When carrying out goaf filling, according to goaf structural mechanics feature and mining, filling production technology arrangement, it is determined that filling main skill
Art parameter；The closed facility of mouth under constructing goaf in discarded bottom exploitation tunnel 3 first, using stowage unit by bastard coal
After the filling slurries such as stone are successively filled to the space that exploitation tunnel and goaf are discarded in bottom from bottom to top, opened on discarded top
Adopt in tunnel 2 and construct goaf closed facility suitable for reading, the filling slurries such as gangue are discarded the space in exploitation tunnel full of top,
Realize the three-dimensional of goaf, ordering, full volumetric filling；
5th step, repeats the first step to the 4th step, realizes safety and high efficiency, the gangue of 2~20m of thickness half-edge coal seams 1
Low cost backfill, ecological environment are effectively protected and resource suitable development is utilized.
In implementation process of the first step to the 5th step, according to coal seam country rock and the mechanical structure of goaf filling body
Signature analysis, stays protection coal pillar 5 between the adjacent phases of the mining of adjacent for setting 5~10m interregional protection coal pillar 6,5~10m, it is ensured that
Working surface production safety.
Described coal transportation system is ribbon conveyer.
The plane milling formula coal-winning machine 8 can be the Vermeer T1255 ahooting plane milling machines of Vermon of the U.S., or
Safe this rock drum-type detritus Buddha's warrior attendant of Meike 1475, or similar other machinery.
Embodiments of the invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Example, in the ken that those of ordinary skill in the art possess, can also make on the premise of present inventive concept is not departed from
Go out various change.
Claims (5)
1. slot type recovery method is built in half-edge coal seam longitudinal direction longwell plane milling, it is characterised in that carried out as steps described below：
The first step, according to half-edge coal seam（1）Occurrence condition, analyze coal seam and coffer mechanics feature, rationally determine that exploitation is wide
The interregional protection coal pillar of degree, level interval, strike length, mining of adjacent（6）The protection coal pillar and between adjacent phases（5）Deng coal-getter
Make face important technological parameters, according to these technical parameters, exploitation tunnel is respectively arranged in coal seam upper and lower part；
Second step, according to coal-face important technological parameters, slips ore deposit and sets by certain multiple vertical satisfactions of spacing construction
Ore deposit hole is slipped for service requirement（4）, it is described to slip ore deposit hole（4）Exploit tunnel in insertion top（2）Tunnel is exploited with bottom（3）, under
Exploit tunnel in portion（3）Middle arrangement coal transportation system, coal transportation system is located at and slips ore deposit hole（4）Lower section；
3rd step, slips ore deposit hole（4）After construction is completed, tunnel is exploited on top（2）It is interior, exploited using coal-cutting machinery, open
To be stayed when adopting and set enough equipment operation safeguard protection coal columns（7）, adopt the coal for falling and slip ore deposit hole by described（4）Opened from bottom is slipped to
Adopt tunnel（3）Coal transportation system, coal-cutting machinery circulation mine, tunnel is exploited on top（2）Tunnel is exploited with bottom（3）It
Between coal mining in addition to protection coal pillar it is complete；
4th step, according to strata control around longwang face and ground ecological environmental protection requirement, it is determined whether carry out goaf filling；Need
When carrying out goaf filling, according to goaf structural mechanics feature and mining, filling production technology arrangement, it is determined that filling main skill
Art parameter；First tunnel is exploited in discarded bottom（3）The closed facility of mouth under goaf is inside constructed, using stowage unit by coal
After the filling slurries such as spoil are successively filled to the space that exploitation tunnel and goaf are discarded in bottom from bottom to top, on discarded top
Exploitation tunnel（2）Goaf closed facility suitable for reading is inside constructed, the filling slurries such as gangue are discarded into exploitation tunnel full of top
Space, realizes the three-dimensional of goaf, ordering, full volumetric filling；
5th step, repeats the first step to the 4th step, realizes thickness 2~20m half-edge coal seams（1）Safety and high efficiency, bastard coal
The backfill of stone low cost, ecological environment are effectively protected and resource suitable development is utilized.
2. slot type recovery method is built in longwell plane milling in half-edge coal seam longitudinal direction according to claim 1, it is characterised in that：Institute
The first step is stated in the implementation process of the 5th step, according to coal seam country rock and the mechanical structure signature analysis of goaf filling body, is stayed
If the interregional protection coal pillar of the mining of adjacent of 5~10m（6）, 5~10m adjacent phases between protection coal pillar（5）, it is ensured that working face
Production safety.
3. slot type recovery method is built in longwell plane milling in half-edge coal seam longitudinal direction according to claim 1 and 2, it is characterised in that：
Coal-cutting machinery in 3rd step is plane milling formula coal-winning machine（8）, dig milling formula coal-winning machine（8）Carry out the descending plane milling of horizontal bar banding
Exploitation forms slot type goaf, adopts to certain depth, ensures that lower section stays the equipment for setting 3~8m to run safeguard protection coal column（7）Afterwards,
Milling formula coal-winning machine will be dug by elevator（8）It is promoted to top exploitation tunnel（2）, or detoured to top exploitation through bottom connection roadway
Tunnel（2）Carry out next circulation.
4. slot type recovery method is built in longwell plane milling in half-edge coal seam longitudinal direction according to claim 1 and 2, it is characterised in that：
It is described to slip ore deposit hole（4）Constructed from bottom to top using anti-well rig.
5. slot type recovery method is built in longwell plane milling in half-edge coal seam longitudinal direction according to claim 1 and 2, it is characterised in that：
The coal transportation system is ribbon conveyer.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542465A (en) * | 2017-07-21 | 2018-01-05 | 中国矿业大学 | A kind of shallow coal-layer water-retaining production method and its application |
| CN108547658A (en) * | 2018-03-20 | 2018-09-18 | 四川省安全科学技术研究院 | A kind of high inclination-angle ultra-thin coal seam spoil is from slipping backfilling goaf method |
| CN109026000A (en) * | 2018-09-28 | 2018-12-18 | 西安科技大学 | A kind of steep-inclined thick coal seam is bowed pseudo- tiltedly arc inclined cuting layering longwall top coal caving method |
| CN110130898A (en) * | 2019-07-09 | 2019-08-16 | 北京中矿创新联盟能源环境科学研究院 | Design method for non-pillar, non-roadway and non-roadway tunneling mine |
| CN111691885A (en) * | 2020-05-26 | 2020-09-22 | 太原理工大学 | Efficient filling mining method for ultra-thick coal seam |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2310752C1 (en) * | 2006-05-02 | 2007-11-20 | Институт угля и углехимии Сибирского отделения Российской Академии Наук (ИУУ СО РАН) | Method for steeply inclined medium-thickness and thin coal seam development |
| CN101942999A (en) * | 2010-08-20 | 2011-01-12 | 天地科技股份有限公司 | Coal mining method for high-dipping low seam |
| CN103104287A (en) * | 2013-01-28 | 2013-05-15 | 山东科技大学 | Stripe gob filling repeated-mining method |
| CN103485786A (en) * | 2013-09-11 | 2014-01-01 | 太原理工大学 | Steeply inclined coal seam strike long-wall mechanization mining method |
| CN103742148A (en) * | 2014-01-14 | 2014-04-23 | 山东科技大学 | Gangue-filling coal mining method for sharp inclined coal seam under flexible shield support |
| CN105003268A (en) * | 2015-06-01 | 2015-10-28 | 四川华蓥山广能集团嘉华机械有限责任公司 | Steeply inclined coal seam strike advancing false dipping fully-mechanized coal mining |
| CN205172581U (en) * | 2015-12-05 | 2016-04-20 | 西安科技大学 | Super high seam high stage that slopes greatly moves towards comprehensive decontroling of wall type and adopts structure |
-
2016
- 2016-12-26 CN CN201611217932.7A patent/CN106761750B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2310752C1 (en) * | 2006-05-02 | 2007-11-20 | Институт угля и углехимии Сибирского отделения Российской Академии Наук (ИУУ СО РАН) | Method for steeply inclined medium-thickness and thin coal seam development |
| CN101942999A (en) * | 2010-08-20 | 2011-01-12 | 天地科技股份有限公司 | Coal mining method for high-dipping low seam |
| CN103104287A (en) * | 2013-01-28 | 2013-05-15 | 山东科技大学 | Stripe gob filling repeated-mining method |
| CN103485786A (en) * | 2013-09-11 | 2014-01-01 | 太原理工大学 | Steeply inclined coal seam strike long-wall mechanization mining method |
| CN103742148A (en) * | 2014-01-14 | 2014-04-23 | 山东科技大学 | Gangue-filling coal mining method for sharp inclined coal seam under flexible shield support |
| CN105003268A (en) * | 2015-06-01 | 2015-10-28 | 四川华蓥山广能集团嘉华机械有限责任公司 | Steeply inclined coal seam strike advancing false dipping fully-mechanized coal mining |
| CN205172581U (en) * | 2015-12-05 | 2016-04-20 | 西安科技大学 | Super high seam high stage that slopes greatly moves towards comprehensive decontroling of wall type and adopts structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542465A (en) * | 2017-07-21 | 2018-01-05 | 中国矿业大学 | A kind of shallow coal-layer water-retaining production method and its application |
| CN107542465B (en) * | 2017-07-21 | 2019-03-19 | 陕西省地质环境监测总站 | A kind of shallow coal-layer water-retaining production method and its application |
| CN108547658A (en) * | 2018-03-20 | 2018-09-18 | 四川省安全科学技术研究院 | A kind of high inclination-angle ultra-thin coal seam spoil is from slipping backfilling goaf method |
| CN109026000A (en) * | 2018-09-28 | 2018-12-18 | 西安科技大学 | A kind of steep-inclined thick coal seam is bowed pseudo- tiltedly arc inclined cuting layering longwall top coal caving method |
| CN109026000B (en) * | 2018-09-28 | 2019-12-03 | 西安科技大学 | A kind of steep-inclined thick coal seam is bowed pseudo- tiltedly arc inclined cuting layering longwall top coal caving method |
| CN110130898A (en) * | 2019-07-09 | 2019-08-16 | 北京中矿创新联盟能源环境科学研究院 | Design method for non-pillar, non-roadway and non-roadway tunneling mine |
| CN110130898B (en) * | 2019-07-09 | 2019-09-17 | 北京中矿创新联盟能源环境科学研究院 | Design method for non-pillar, non-roadway and non-roadway tunneling mine |
| US11578597B2 (en) | 2019-07-09 | 2023-02-14 | Beijing Zhongkuang Innovation Alliance Energy Environment Science Academy | Underground longwall mining method |
| CN111691885A (en) * | 2020-05-26 | 2020-09-22 | 太原理工大学 | Efficient filling mining method for ultra-thick coal seam |
| CN111691885B (en) * | 2020-05-26 | 2021-11-09 | 太原理工大学 | Efficient filling mining method for ultra-thick coal seam |
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Effective date of registration: 20221104 Address after: 553401 Xi Circular Economy Industrial Park, Liupanshui Road, Xinyao Town, Liuzhi Special Zone, Liupanshui City, Guizhou Province Patentee after: Guizhou Inclined Mining Technology Co.,Ltd. Address before: 030001 No. 18 Youth Road, Yingze District, Taiyuan City, Shanxi Province Patentee before: Gao Hongbo |