CN105736045A - Bag type filling system and filling method for controlling water inrush from gob floor - Google Patents
Bag type filling system and filling method for controlling water inrush from gob floor Download PDFInfo
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- CN105736045A CN105736045A CN201610248312.3A CN201610248312A CN105736045A CN 105736045 A CN105736045 A CN 105736045A CN 201610248312 A CN201610248312 A CN 201610248312A CN 105736045 A CN105736045 A CN 105736045A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 35
- 238000007599 discharging Methods 0.000 claims description 35
- 230000003028 elevating effect Effects 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000010878 waste rock Substances 0.000 abstract 4
- 239000003245 coal Substances 0.000 description 16
- 230000001276 controlling effect Effects 0.000 description 10
- 238000005065 mining Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- 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
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Pulverization Processes (AREA)
- Refuse Collection And Transfer (AREA)
Abstract
The invention discloses a bag type filling system and a bag type filling method for controlling water inrush from a gob floor. The bag type filling system comprises an underground waste rock crushing station, a shuttle mine car, a first scraper conveyer, a stage loader, a belt conveyer and a discharge device, wherein the underground waste rock crushing station is used for crushing underground original waste rocks; the shuttle mine car is used for transporting the crushed waste rocks; the discharge end of the first scraper conveyer is lapped with the feed end of the stage loader; the discharge end of the stage loader is lapped with the belt conveyer; and the belt conveyer is glidingly connected with the discharge device. According to the filling system and the filling method, the original waste rocks can be crushed in the ground and are not lifted out of mine, so that the lifting and transfer links are removed and the production cost of the mine is reduced; waste rock bags can be automatically stacked in a gob, so that the automation degree is high; the waste rocks can be safely processed in the ground, so that the land occupation is reduced and the environmental pollution is alleviated; and the waste rock bags in the gob are stacked regularly, the top connection effect is good, the porosity is small, the filling rate is high, surrounding rocks can be controlled to move, and the effect of preventing water inrush from the floor is good.
Description
Technical field
The present invention relates to a kind of coal mine gob filling system and placement method thereof, particularly relate to a kind of pocket type filling system controlling gob floor gushing water and placement method thereof.
Background technology
China's coal-mine " three times " (under building, under railway, under water body) pressure coal is commonplace.According to statistics, State owned coal mine pressure coal total amount about 13,800,000,000 t, wherein presses nearly 9,000,000,000 t of coal under building.Along with the continuous expansion of town size, actual pressure coal amount is far above this numeral.And, these part reserves are distributed mainly on that industrial foundation is better, exploit condition is advantageous, produce and the eastern region that demand contradictory highlights, economy is more flourishing, such as provinces such as Shandong, Henan, Hebei, Anhui, Jiangsu.For Shandong: Shandong coal has the production history of upper a century, the whole province village, building are dense in addition, have 1949, coal village of pressure, and coal under villages amount accounts for the 60% of recoverable reserves.According to Shandong Prov. Coal Industry Bureau's chief's Qiao Naichen introduction; if do not taked protective mining measure, residue coal recoverable reserves is difficult to maintain 20 years, therefore; how to liberate " three times " pressure coal, extend old coal mining enterprise and become the important topic affecting Chinese energy safety and social stability mine service-life.
Gangue is the garbage produced in coal production and washing process, and every annual emissions is equivalent to the 10%～15% of coal production.The whole nation total burden of gangue has reached 4,500,000,000 t at present, forms hillock more than 1700, takes up an area ha more than 30,000, and just with the speed increment of annual 100000000 t.Gangue is stored up for a long time, takies a large amount of soil, polluted source, and generates H after spontaneous combustion2S、SO2Etc. harmful gas, ecological environment is constituted significant damage.The disposal safe, reasonable how realizing gangue becomes the key issue that relation China builds a resource-conserving and environment-friendly society.To this, there is scholar to propose the concept of " waste filling ", both achieved the safe disposal of gangue, liberated again " three times " pressure coal.
Waste filling is that primary for down-hole spoil or earth's surface hillock spoil are transported to underground goaf, with filling goaf by gangue, reaches to control movement, slows down the purpose of surface subsidence.Existing waste filling system is broadly divided into three kinds: (1) " throwing cash ", it is, by rubber conveyer or drag conveyor, spoil is delivered to goaf, there is filling to owe to connect top amount greatly, pack completeness is low, Gangue voidage is big, decrement is big, controls movement, the shortcoming slowing down surface subsidence weak effect；(2) " cash+tamping is thrown ", it is be delivered to behind goaf until spoil to utilize the ramming mechanism that comprehensive mining hydraulic bracket rear disposes that spoil is consolidated further, it is compared with " throwing cash " mode, its pack completeness increases, Gangue voidage reduces, but still suffering from owing to connect top amount, and system need to install more ramming mechanism, system complex, automaticity are low；(3) " turning over a bag filling ", it is to be thrown packed spoil to goaf by bag overturning machine structure after being packed by spoil, there is spoil bag and piles up unordered, there is bigger space each other, and voidage is big, controls movement and slows down the shortcoming that surface subsidence effect is poor.
Summary of the invention
For above Problems existing, the present invention proposes a kind of pocket type filling system controlling gob floor gushing water and placement method thereof, this filling system and placement method thereof can realize downhole crushed, the spoil not gug of primary spoil, reduce and promote and transhipment link, reduce mine production costs；Spoil bag can being stacked to goaf automatically, automaticity is high；The downhole safety that can realize spoil is disposed, and reduces the soil amount of covering, alleviates environmental pollution；Goaf spoil bag is stacking neatly, connects top effective, and voidage is little, and pack completeness is high, controls country rock motion, it is prevented that Water Inrush is effective.
Technical solution of the present invention includes:
A kind of pocket type filling system controlling gob floor gushing water, it includes downhole gangue Crushing Station, shuttle car, the first drag conveyor, elevating conveyor, belt conveyor and device for discharging, described downhole gangue Crushing Station is used for crushing the primary spoil in down-hole, optimize broken spoil size grading, reducing voidage, described shuttle car is used for transporting broken spoil；
Described first drag conveyor discharge end and described elevating conveyor feed end overlap joint, described elevating conveyor discharge end and described belt conveyor overlap joint, described belt conveyor and described device for discharging are slidably connected.
Further, described downhole gangue Crushing Station includes drop-bottom car, hole is unloaded at the end, second drag conveyor, oscillating feeder, jaw crusher and waste bin, described drop-bottom car is unloaded hole and is flexibly connected by track with the described end, the described end, unloads and is provided with the second drag conveyor in hole, the discharge end of described second drag conveyor extends to waste bin top, described second drag conveyor and described oscillating feeder overlap joint, the charging aperture of the discharging opening of described oscillating feeder and described jaw crusher overlaps, the discharging opening of described jaw crusher and described waste bin overlap joint；
Described waste bin top is provided with the anti-drop net preventing personnel from falling；
Described waste bin discharging opening is provided with discharging lock, it is simple in control storehouse, broken spoil goes out cash amount；
Described waste bin adopts concrete wall, to reduce the lower slip resistance of broken spoil, it is simple to broken spoil flows out from waste bin.
Further, described first drag conveyor feed end is arranged above hopper；
Described first drag conveyor is fixed on mine platform lorry by Retractive leg, it is simple to adjust drag conveyor attitude；
Described first drag conveyor discharge end is provided with discharge bucket.
Further, described elevating conveyor is fixed on mine platform lorry by Retractive leg, it is simple to adjust elevating conveyor attitude.
Further, plate belt conveyor selected by described belt conveyor, and described belt conveyor hangs on tail boom after hydraulic support by telescopic rope.
Further, described device for discharging includes walking slide rail, slide block, roller, support, baffle plate, electromotor, fixing plate, shaft coupling, hydraulic jack, supporting leg and push pedal, described walking slide rail is fixing with belt conveyor to be connected, described walking slide rail is connected with described slide block and described roller-coaster, described slide block is fixing with described supporting leg to be connected, described supporting leg is fixing with described support to be connected, described roller is connected by described shaft coupling and described electromotor are fixing, described electromotor is fixing with described fixing plate to be connected, described fixing plate is fixing with described support to be connected, described baffle plate is fixing with described support to be connected, the cylinder body of described hydraulic jack is fixing with described support to be connected, described push pedal is fixing with the piston rod of described hydraulic jack to be connected；
Being installed with strain gauge on described baffle plate, strain gauge connects the electric control gear for controlling hydraulic jack.
A kind of pocket type placement method controlling gob floor gushing water, it mainly comprises the steps that
A, primary spoil are broken, with drop-bottom car, primary spoil is transported to downhole gangue Crushing Station, primary spoil is crushed, and be stored in waste bin by broken spoil；
B, primary gangue reprint, be transported to filling operation face with shuttle car by the broken spoil being stored in waste bin；
C, primary spoil pack, and are unloaded by the broken spoil on shuttle car to being installed in the hopper above the first drag conveyor feed end, and pack at the first drag conveyor discharge end；
D, bashing.
Further, in described step D, bashing comprises the steps:
1. regulate scalable rope, belt conveyor is put to lowest point, and device for discharging is run the side to work surface incline direction；
2., as the broken spoil of bag when elevating conveyor and belt conveyor are transported to device for discharging position, spoil bag is pushed into region to be filled by device for discharging automatically；
3. discharge mechanism is advanced to the opposite side of work surface incline direction the distance of a spoil bag width, and the spoil bag being transported to this position is automatically pushed to region to be filled；
4. step is repeated 3., until being fills up to the opposite side of work surface incline direction successively；
5. regulate scalable rope, by one spoil bag height of belt conveyor lifting, then repeat step 2.-4.；
6. step is repeated 5., until whole face height is completely filled with spoil bag；
7. hydraulic support is moved forward the distance of a spoil bag length, then repeat step 1.-6., until by complete for whole for whole goaf fillings.
The Advantageous Effects that as above technical scheme obtains is adopted to be:
(1) downhole crushed, the spoil not gug of primary spoil can be realized, decrease lifting and transhipment link, reduce mine production costs；
(2) spoil bag can being stacked to goaf automatically, automaticity is high；
(3) downhole safety that can realize spoil is disposed, and reduces the soil amount of covering, alleviates environmental pollution；
(4) spoil bag in goaf is stacking neatly, connects top effective, and voidage is little, and pack completeness is high, controls country rock motion, it is prevented that Water Inrush is effective.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of pocket type filling system floor map controlling gob floor gushing water.
Fig. 2 is A-A section profile.
Fig. 3 is B-B section profile.
Fig. 4 is downhole gangue Crushing Station schematic diagram.
Fig. 5 is device for discharging front view.
Fig. 6 is device for discharging side view.
Fig. 7 is device for discharging top view.
In figure: 1, shuttle car, 2, first drag conveyor, 3, elevating conveyor, 4, belt conveyor, 5, hydraulic support, 6, coal-winning machine, 7, spoil bag, 8, mobile substation, 9, emulsion power pack, 10, face end support, 11, region to be filled, 12, track, 13, track switch, 14, belt crossheading, 15, track crossheading, 16, mine platform lorry, 17, hopper, 18, Retractive leg, 19, device for discharging, 192, walking slide rail, 193, roller, 194, shaft coupling, 195, electromotor, 196, fixing plate, 197, supporting leg, 198, hydraulic jack, 199, support, 1910, electric control gear, 1911, push pedal, 1912, baffle plate, 1913, strain gauge, 1914, slide block；20, drop-bottom car, 21, the end unload hole, the 22, second drag conveyor, 23, oscillating feeder, 24, jaw crusher, 25, waste bin, 26, discharging lock, 27, scalable rope, a, spoil bag length, b, spoil bag width, h, spoil bag height, H, face height.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-7, the enforcement of the present invention is further described:
A kind of pocket type filling system controlling gob floor gushing water, including for crushing the primary spoil in down-hole, optimize spoil size grading, reduce the downhole gangue Crushing Station of spoil voidage, for transporting the shuttle car 1 of broken spoil, first drag conveyor 2, elevating conveyor 3, belt conveyor 4 and device for discharging 19, first drag conveyor 2 discharge end and elevating conveyor 3 feed end overlap joint, elevating conveyor 3 discharge end and belt conveyor 4 overlap, belt conveyor 4 and device for discharging 19 are slidably connected, first drag conveyor 2 feed end is arranged above hopper 17, first drag conveyor 2 is fixed on mine platform lorry 16 by Retractive leg 18, first drag conveyor 2 discharge end is provided with discharge bucket.
nullDownhole gangue Crushing Station includes drop-bottom car 20、Hole 21 is unloaded at the end、Second drag conveyor 22、Oscillating feeder 23、Jaw crusher 24 and waste bin 25，Drop-bottom car 20 is unloaded hole 21 and is flexibly connected by track the end of with，The end, unloads in hole 21 and is provided with the second drag conveyor 22，The discharge end of the second drag conveyor 22 extends to waste bin 25 top，Second drag conveyor 22 overlaps with oscillating feeder 23，The charging aperture of the discharging opening of oscillating feeder 23 and jaw crusher 24 overlaps，The discharging opening of jaw crusher 24 and waste bin 25 overlap，Waste bin 25 top is provided with the anti-drop net preventing personnel from falling，Waste bin 25 discharging opening is provided with and controls to crush spoil in storehouse and go out the discharging lock 26 of cash amount，Waste bin is concrete side walls，To reduce the lower slip resistance of broken spoil，It is easy to broken spoil flow out from waste bin.
Elevating conveyor 3 is fixed on mine platform lorry 16 by Retractive leg 18.
Plate belt conveyor selected by belt conveyor 4, adopts scalable rope 27 to be hung on the rear tail boom of hydraulic support 5 by belt conveyor 4.
nullDevice for discharging 19 includes walking slide rail 192、Slide block 1914、Roller 193、Support 199、Baffle plate 1912、Electromotor 195、Fixing plate 196、Shaft coupling 194、Hydraulic jack 198、Supporting leg 197 and push pedal 1911，Walking slide rail 192 is fixing with belt conveyor 4 to be connected，Walking slide rail 192 is slidably connected with slide block 1914 and roller 193，Slide block 1914 is fixing with supporting leg 197 to be connected，Supporting leg 197 is fixing with support 199 to be connected，Roller 193 is connected by shaft coupling 194 is fixing with electromotor 195，Electromotor 195 is fixing with fixing plate 196 to be connected，Fixing plate 196 is fixing with support 199 to be connected，Baffle plate 1912 is fixing with support 199 to be connected，The cylinder body of hydraulic jack 198 is fixing with support 199 to be connected，Push pedal 1911 is fixing with the piston rod of hydraulic jack 198 to be connected，Baffle plate 1912 is installed with strain gauge 1913，Strain gauge 1913 connects the electric control gear 1910 for controlling hydraulic jack 198.
Present invention also offers a kind of pocket type placement method controlling gob floor gushing water, it mainly comprises the steps that
Step A, primary spoil are broken, with drop-bottom car 20, primary spoil is transported to downhole gangue Crushing Station, primary spoil is crushed, and be stored in waste bin 25 by broken spoil；
Step B, primary gangue reprint, be transported to filling operation face with shuttle car 1 by the broken spoil being stored in waste bin 25；
Step C, primary spoil pack, and are unloaded by the broken spoil on shuttle car 1 to being installed in the hopper 17 above the first drag conveyor 2 feed end, and pack at the first drag conveyor 2 discharge end；
Step D, bashing.
Step D is more specifically:
1. regulating scalable rope 27, by Belt Conveying, 4 put to lowest point, and are run by device for discharging 19 to belt crossheading (track crossheading) side；
2., as the broken spoil of bag when elevating conveyor 3 and belt conveyor 4 are transported to device for discharging 19 position, spoil bag is pushed into region 11 to be filled by device for discharging 19 automatically；
3. discharge mechanism 19 is advanced to track crossheading (belt crossheading) side the distance of a spoil bag width b, and the spoil bag being transported to this position is automatically pushed to region 11 to be filled；
4. step is repeated 3., until being fills up to track crossheading (belt crossheading) side successively；
5. regulate scalable rope 27, one spoil bag height h of belt conveyor 4 lifting will be risen, repeat step 2.-4.；
6. step is repeated 5., until whole face height H is completely filled with spoil bag；
7. hydraulic support 5 is moved forward the distance of a spoil bag length a, then repeat step 1.-6., until by complete for whole for whole goaf fillings.
Certainly; described above it is only presently preferred embodiments of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the guidance of this specification; made all equivalent replacement, obvious variant, all fall within the essential scope of this specification, ought to be subject to the protection of the present invention.
Claims (8)
1. the pocket type filling system controlling gob floor gushing water, it includes downhole gangue Crushing Station, shuttle car, the first drag conveyor, elevating conveyor, belt conveyor and device for discharging, described downhole gangue Crushing Station is used for crushing the primary spoil in down-hole, optimize broken spoil size grading, reducing voidage, described shuttle car is used for transporting broken spoil；
Described first drag conveyor discharge end and described elevating conveyor feed end overlap joint, described elevating conveyor discharge end and described belt conveyor overlap joint, described belt conveyor and described device for discharging are slidably connected.
2. a kind of pocket type filling system controlling gob floor gushing water according to claim 1, it is characterized in that, described downhole gangue Crushing Station includes drop-bottom car, hole is unloaded at the end, second drag conveyor, oscillating feeder, jaw crusher and waste bin, described drop-bottom car is unloaded hole and is flexibly connected by track with the described end, the described end, unloads and is provided with the second drag conveyor in hole, the discharge end of described second drag conveyor extends to waste bin top, described second drag conveyor and described oscillating feeder overlap joint, the charging aperture of the discharging opening of described oscillating feeder and described jaw crusher overlaps, the discharging opening of described jaw crusher and described waste bin overlap joint；
Described waste bin top is provided with the anti-drop net preventing personnel from falling；
Described waste bin discharging opening is provided with discharging lock, it is simple in control storehouse, broken spoil goes out cash amount；
Described waste bin adopts concrete wall, to reduce the lower slip resistance of broken spoil, it is simple to broken spoil flows out from waste bin.
3. one one kinds of pocket type filling systems controlling gob floor gushing water according to claim 1, it is characterised in that described first drag conveyor feed end is arranged above hopper；
Described first drag conveyor is fixed on mine platform lorry by Retractive leg, it is simple to adjust drag conveyor attitude；
Described first drag conveyor discharge end is provided with discharge bucket.
4. a kind of pocket type filling system controlling gob floor gushing water according to claim 1, it is characterised in that described elevating conveyor is fixed on mine platform lorry by Retractive leg, it is simple to adjust elevating conveyor attitude.
5. a kind of pocket type filling system controlling gob floor gushing water according to claim 1, it is characterised in that plate belt conveyor selected by described belt conveyor, described belt conveyor hangs on tail boom after hydraulic support by telescopic rope.
null6. a kind of pocket type filling system controlling gob floor gushing water according to claim 1，It is characterized in that，Described device for discharging includes walking slide rail、Slide block、Roller、Support、Baffle plate、Electromotor、Fixing plate、Shaft coupling、Hydraulic jack、Supporting leg and push pedal，Described walking slide rail is fixing with belt conveyor to be connected，Described walking slide rail is connected with described slide block and described roller-coaster，Described slide block is fixing with described supporting leg to be connected，Described supporting leg is fixing with described support to be connected，Described roller is connected by described shaft coupling and described electromotor are fixing，Described electromotor is fixing with described fixing plate to be connected，Described fixing plate is fixing with described support to be connected，Described baffle plate is fixing with described support to be connected，The cylinder body of described hydraulic jack is fixing with described support to be connected，Described push pedal is fixing with the piston rod of described hydraulic jack to be connected；
Being installed with strain gauge on described baffle plate, strain gauge connects the electric control gear for controlling hydraulic jack.
7. controlling a pocket type placement method for gob floor gushing water, it mainly comprises the steps that
A, primary spoil are broken, with drop-bottom car, primary spoil is transported to downhole gangue Crushing Station, primary spoil is crushed, and be stored in waste bin by broken spoil；
B, primary gangue reprint, be transported to filling operation face with shuttle car by the broken spoil being stored in waste bin；
C, primary spoil pack, and are unloaded by the broken spoil on shuttle car to being installed in the hopper above the first drag conveyor feed end, and pack at the first drag conveyor discharge end；
D, bashing.
8. a kind of pocket type placement method controlling gob floor gushing water according to claim 7, it is characterised in that described step D comprises the steps:
1. regulate scalable rope, belt conveyor is put to lowest point, and device for discharging is run the side to work surface incline direction；
2., as the broken spoil of bag when elevating conveyor and belt conveyor are transported to device for discharging position, spoil bag is pushed into region to be filled by device for discharging automatically；
3. discharge mechanism is advanced to the opposite side of work surface incline direction the distance of a spoil bag width, and the spoil bag being transported to this position is automatically pushed to region to be filled；
4. step is repeated 3., until being fills up to the opposite side of work surface incline direction successively；
5. regulate scalable rope, by one spoil bag height of belt conveyor lifting, then repeat step 2.-4.；
6. step is repeated 5., until whole face height is completely filled with spoil bag；
7. hydraulic support is moved forward the distance of a spoil bag length, then repeat step 1.-6., until by complete for whole for whole goaf fillings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248312.3A CN105736045B (en) | 2016-04-20 | 2016-04-20 | A kind of the pocket type filling system and its placement method of control gob floor gushing water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610248312.3A CN105736045B (en) | 2016-04-20 | 2016-04-20 | A kind of the pocket type filling system and its placement method of control gob floor gushing water |
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| CN105736045B CN105736045B (en) | 2018-09-11 |
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| CN107676131A (en) * | 2017-11-10 | 2018-02-09 | 缪协兴 | A kind of solid waste packs filling coal mining method |
| CN110359953A (en) * | 2019-07-05 | 2019-10-22 | 太原理工大学 | A kind of underground coal mine sky lane fast and low-cost filling system device |
| CN112664266A (en) * | 2021-01-04 | 2021-04-16 | 安徽理工大学 | Underground compressed block stacking type filling system and method |
| CN113006863A (en) * | 2021-04-14 | 2021-06-22 | 中国矿业大学 | Automatic inflatable filling bag device and working face filling method |
| CN113738365A (en) * | 2021-09-30 | 2021-12-03 | 山东金恒力能源科技有限公司 | Coal mining method based on tracking type transportation equipment |
| CN113944503A (en) * | 2021-09-03 | 2022-01-18 | 中煤科工开采研究院有限公司 | Goaf bulk material back-conveying backfill system and method |
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| CN107676131A (en) * | 2017-11-10 | 2018-02-09 | 缪协兴 | A kind of solid waste packs filling coal mining method |
| CN110359953A (en) * | 2019-07-05 | 2019-10-22 | 太原理工大学 | A kind of underground coal mine sky lane fast and low-cost filling system device |
| CN110359953B (en) * | 2019-07-05 | 2021-01-26 | 太原理工大学 | Coal mine underground empty roadway filling system device |
| CN112664266A (en) * | 2021-01-04 | 2021-04-16 | 安徽理工大学 | Underground compressed block stacking type filling system and method |
| CN113006863A (en) * | 2021-04-14 | 2021-06-22 | 中国矿业大学 | Automatic inflatable filling bag device and working face filling method |
| CN113006863B (en) * | 2021-04-14 | 2021-11-26 | 中国矿业大学 | Automatic inflatable filling bag device and working face filling method |
| CN113944503A (en) * | 2021-09-03 | 2022-01-18 | 中煤科工开采研究院有限公司 | Goaf bulk material back-conveying backfill system and method |
| CN113738365A (en) * | 2021-09-30 | 2021-12-03 | 山东金恒力能源科技有限公司 | Coal mining method based on tracking type transportation equipment |
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| CN105736045B (en) | 2018-09-11 |
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