CN109915203A - A kind of coal mine gob dry packing system and placement method - Google Patents
A kind of coal mine gob dry packing system and placement method Download PDFInfo
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- CN109915203A CN109915203A CN201910369057.1A CN201910369057A CN109915203A CN 109915203 A CN109915203 A CN 109915203A CN 201910369057 A CN201910369057 A CN 201910369057A CN 109915203 A CN109915203 A CN 109915203A
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- 239000003245 coal Substances 0.000 title claims abstract description 73
- 238000012856 packing Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 20
- 230000003028 elevating effect Effects 0.000 claims abstract description 14
- 238000005065 mining Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000011343 solid material Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 3
- 239000002910 solid waste Substances 0.000 abstract description 14
- 230000007613 environmental effect Effects 0.000 abstract 1
- 241000273930 Brevoortia tyrannus Species 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- -1 gangue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of coal mine gob dry packing systems, storage bin and roadway including being set to ground, and the discharge port of storage bin passes through the tubular belt conveyor being arranged in roadway and connect with the elevating conveyor for being set to coal working face end；Coal working face is disposed with filling bracket, fills and is provided with drag conveyor on bracket, and drag conveyor is set on the workbench on filling bracket base, and drag conveyor is overlapped with elevating conveyor, and discharge port is equipped in the stripper cell of drag conveyor.Filling system of the present invention realizes coal mining and filling parallel operations, and solid waste processing capacity is strong, and transportation range is long, and filling operation face yield is big.Placement method solid waste conveying engineering amount of the present invention is small, project investment is small, short time limit, environmental protection.
Description
Technical field
The invention belongs to coal mine filling production technique fields, and in particular to a kind of coal mine gob dry packing system, this
Invention further relates to a kind of coal mine gob dry packing method.
Background technique
Currently, coal in China exploitation, washing, spoil, coal slime, the flyash generated in power generation process, coal chemical industry production is produced
The solid waste such as raw waste residue are generally all deposited in ground, these solid waste land occupations, pollute environment, need this
A little solid waste carry out returning well filling, realize that coal mine detracts green filling mining.
Existing coal mine dry packing production technique is primarily present following problem: (1) being generally used ordinary belt conveying
Machine transports attal, and occupied space is big, and material cannot be closed, and there are sideslip, common belt conveyor in the horizontal plane can only
Linear transmission conveys the gradient in the vertical direction and is generally less than 20 °, i.e., cannot be the problems such as three-dimensional space curve transmits；(2) existing
There is technology that cannot generally carry out in existing roadway using being typically necessary and newly open using common belt conveyor conveying attal
It digs vertical feeding well or adhesive tape transports cash tunnel, project amount is big, and investment is high, long in time limit；(3) the filling branch that general dry packing uses
Frame all suspends light-duty drag conveyor in midair under its top beam tail portion, and mining drag conveyor when moving frame cannot with top beam lifting, Forward
Material filling is carried out, that is, mines and filling is unable to parallel operations, working face layout is low, and pack effectiveness is low, solid waste processing
Ability is low, while suspending light-duty drag conveyor in midair there is also safeties poor, and drag conveyor installation uses and overhaul inconvenience,
It is poor to fill support stability.
Summary of the invention
The purpose of the present invention is to provide a kind of coal mine gob dry packing systems, normal in coal using existing roadway
In the case of exploitation, solid waste is carried out to return well filling, solution common belt conveyor conveying material occupied space is big, cannot
Closing conveying material, cannot be the problems such as three-dimensional space curve conveys material；It is defeated to solve conventional filling cradle hangs filling scraper plate
Send and mine caused by machine and filling is unable to parallel operations, solid waste processing capacity is limited, solve conventional filling bracket installation,
Use and overhaul inconvenience, safety is poor, be not suitable with large size modern mine scale filling mining the problems such as.
It is another object of the present invention to provide a kind of coal mine gob dry packing methods, solve existing dry packing
Method is mined and filling is unable to parallel operations, and operating personnel and device security are poor, and working face layout is low, and pack effectiveness is low, Gu
The small problem of body offal treatment ability.
The technical scheme adopted by the invention is that a kind of coal mine gob dry packing system, including being set to ground
Storage bin and roadway, the discharge port of storage bin pass through the tubular belt conveyor being arranged in roadway and are set to coal working face
The elevating conveyor of end connects；Coal working face is disposed with filling bracket, fills and is provided with drag conveyor on bracket, scraper plate conveying
Machine is set on the workbench on filling bracket base, and drag conveyor is overlapped with elevating conveyor, and drag conveyor is scraped
Discharge port is equipped in board slot.
The features of the present invention also characterized in that
Roadway is existing roadway or newly tunnels roadway, and tubular belt conveyor is made of carrying section with reverse-running section, tubulose skin
Horizontal, vertical or distributed arrangement can be used in roadway in band conveyer.
It further include the surge bunker being set in roadway, the discharge port of storage bin and the feed inlet of surge bunker pass through tubular belt
Conveyer connection, the discharge port of surge bunker are connected with the elevating conveyor for being set to coal working face end by tubular belt conveyor
It connects.
The lower part of storage bin and surge bunker is provided with charging gear, is provided with rehandling facilities below the charging gear,
The rehandling facilities is connect with tubular belt conveyor.
Filling bracket includes pedestal, is connect by multiple telescopic columns with top beam on pedestal, between pedestal and top beam
It is also connected with four-bar mechanism, top beam front end is connected with face guard, and base rear end is equipped with liftable gangue stopping device, gear
Cash device is connect at least through a jack with pedestal, and gangue stopping device top is connected with workbench, and workbench is provided with
Material through hole is provided with drag conveyor on workbench, and the rear end of workbench gangue stopping device is connected with rear position margining plate, top
Beam rear end is hinged with tail boom, while oil cylinder is also connected between top beam and tail boom, and tail boom is mutually overlapped with rear position margining plate.
The discharge port of drag conveyor is located at right above the material through hole of workbench and communicates therewith, material through hole
Section be greater than drag conveyor discharge port, the width of material through hole is greater than the width of drag conveyor discharge port.
Workbench front end is connected with front limit plate, and the height of front limit plate is not higher than the top of drag conveyor, rear to limit
Top of the height not less than drag conveyor and the bottom not higher than top beam of position plate.
Width between the front limit plate and rear position margining plate of workbench is not less than the two of scraper conveyor scraper groove width
Times.
The rear end face of tail boom is inclined-plane, the upper edge on inclined-plane and rear position margining plate in the outside of rear position margining plate, the downside of tail boom
Mutually overlap.
Another technical solution of the present invention is a kind of coal mine gob dry packing method, using a kind of coal
Ore goaf dry packing system, is specifically implemented according to the following steps:
Step 1, when force piece is installed, drag conveyor is placed on the workbench of filling bracket, then pass through
The jack of filling bracket adjusts the workbench for filling bracket to height needed for packing job；
Step 2, solid material is fitted into storage bin, passes through charging gear, rehandling facilities and the tubulose skin in storage bin
It is transported to the surge bunker in roadway with conveyer, then by charging gear, rehandling facilities, tubular belt conveyor in surge bunker and is turned
Solid material is transported on drag conveyor by carrier aircraft；
Step 3, when working surface coal mining machine coal cutting, one by one or the drag conveyor discharging on filling bracket is opened in segmentation
Mouthful, attal is offloaded to goaf, is filled, after coalcutter coal cutting, filling bracket is single or in groups to reach frame,
Fill the mobile preceding discharge port for closing drag conveyor of bracket, under the promotion of the rear position margining plate on filling bracket, scraper plate conveying
Machine moves forward simultaneously；
Step 4, continue coal cutting forward with working surface coal mining machine, repeat step 2 step 3, adopted until completing entire working face
The filling of dead zone.
The beneficial effects of the present invention are: a kind of coal mine gob dry packing system of the present invention, using existing roadway cloth
Tubular belt conveyor is set, project amount is small, small investment, short time limit；The fortune of solid waste is carried out using tubular belt conveyor
Defeated, occupancy lane space is small, not sideslip, not spreading, and dust is few, it can be achieved that space curve transmits, and high inclination-angle conveys；Coal work
Production of looking unfamiliar is mined and filling parallel operations in the process；The filling system takes full advantage of the solid waste such as gangue, flyash,
Filling operation face yield is big, realizes the filling of long range large conveying quantity and coal mine detracts lasting exploit；
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of coal mine gob dry packing system of the present invention；
Fig. 2 is a kind of working face arrangement schematic diagram of coal mine gob dry packing system of the present invention；
Fig. 3 is a kind of filling mining schematic diagram of coal mine gob dry packing system of the present invention；
Fig. 4 is a kind of filling supporting structure schematic diagram of coal mine gob dry packing system of the present invention；
Fig. 5 is a kind of filling bracket work platform structure schematic diagram of coal mine gob dry packing system of the present invention.
Fig. 6 is a kind of tubular belt conveyor of coal mine gob dry packing system vertical in roadway of the present invention
Schematic diagram；
Fig. 7 is that a kind of tubular belt conveyor of coal mine gob dry packing system of the present invention is horizontally disposed in roadway
Schematic diagram.
Fig. 8 is a kind of tubular belt conveyor of coal mine gob dry packing system of the present invention distributed cloth in roadway
Set schematic diagram.
Fig. 9 is that a kind of tubular belt conveyor of coal mine gob dry packing system of the present invention is distributed in two roadways
Formula arrangement schematic diagram.
In figure, 1. storage bins, 2. surge bunkers, 3. roadways, 4. tubular belt conveyors, 5. filling brackets, the conveying of 6. scraper plates
Machine, 7. discharge ports, 8. elevating conveyors；9. coal working face
4-1. carries section, 4-2. reverse-running section；
5-1. top beam, 5-2. column, 5-3. four-bar mechanism, 5-4. pedestal, 5-5. gangue stopping device, 5-6. jack, 5-
7. workbench, 5-8. rear position margining plate, 5-9. front limit plate, 5-10. tail boom, 5-11. face guard, 5-12. material through hole, 5-
13 otic placodes.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of coal mine gob dry packing systems, as shown in Figure 1, including the storing for being set to ground
Storehouse 1 and roadway 3, the discharge port of storage bin 1 pass through the tubular belt conveyor 4 being arranged in roadway 3 and are set to coal work
The elevating conveyor 8 of 9 end of face connects；Coal working face 9 is disposed with filling bracket 5, fills and is provided with drag conveyor 6 on bracket 5,
Drag conveyor 6 is set on the workbench on filling bracket base on 5-7, and drag conveyor 6 is taken with elevating conveyor 8
It connects, discharge port 7 is equipped in the stripper cell of drag conveyor 6；It further include the surge bunker 2 being set in roadway 3, storage bin 1 goes out
Material mouth and the feed inlet of surge bunker 2 are connect by tubular belt conveyor 4, the discharge port of surge bunker 2 and are set to coal work
The elevating conveyor 8 of 9 end of face is connected by tubular belt conveyor 4, roadway distance is shorter then no setting is required surge bunker 2, roadway away from
From longer, transportation range is then longer, needs to increase surge bunker 2 and is stored, caches solid waste, to meet the need of filling
It wants.
Roadway 3 is existing roadway 3 or new driving roadway 3.
As shown in Fig. 6-Fig. 9, tubular belt conveyor 4 is made of carrying section 4-1 and reverse-running section 4-2, tubular belt conveying
Machine 4 carries section 4-1 and horizontal, vertical, distributed arrangement can be used in roadway 3 in reverse-running section 4-2, is used according to the difference of roadway
Different modes are arranged.
The lower part of storage bin 1 and surge bunker 2 is provided with charging gear, is provided with rehandling facilities below charging gear, turns
It carries to set and be connect with tubular belt conveyor 4.
As shown in Figure 3 and Figure 4, filling bracket 5 includes pedestal 5-4, passes through multiple telescopic column 5-2 on pedestal 5-4
It is connect with top beam 5-1, four-bar mechanism 5-3 is also connected between pedestal 5-4 and top beam 5-1, the front end top beam 5-1 is connected with
Face guard 5-11, pedestal 5-4 be equipped with liftable gangue stopping device 5-5, gangue stopping device 5-5 at least through a jack 5-6 with
Pedestal 5-4 connection, at least provided with a pair of of otic placode 5-13, the telescopic end of jack 5-6 is fixed on phase for the side of gangue stopping device 5-5
On a pair of of the otic placode 5-13 answered, the other end of jack 5-6 is fixed on bracket base 5-4, and the top gangue stopping device 5-5 is connected with
The surface workbench 5-7, workbench 5-7 is provided with material through hole 5-12, is provided with drag conveyor on workbench 5-7
The rear end of the gangue stopping device 5-5 of 6, workbench 5-7 are connected with rear position margining plate 5-8, and the rear end top beam 5-1 is hinged with tail boom 5-10,
Oil cylinder is also connected between top beam 5-1 and tail boom 5-10 simultaneously, tail boom 5-10 is overlapped with rear position margining plate 5-8 phase, gangue stopping device 5-5
Pin shaft is provided on side wall, for fixing the height of gangue stopping device 5-5.
The discharge port 7 of drag conveyor 6 is located above the material through hole 5-12 on the surface workbench 5-7 and connects with it
Logical, the section of material through hole 5-12 is greater than 6 discharge port 7 of drag conveyor, and it is defeated that the width of material through hole 5-12 is greater than scraper plate
Send the width of 6 discharge port 7 of machine.
As shown in figure 5, the front end workbench 5-7 is connected with front limit plate 5-9, the height of front limit plate 5-9, which is not higher than, is scraped
The top of plate conveyer 6, front limit plate 5-9 can prevent drag conveyor 6 from falling when sliding, and guarantee drag conveyor 6 always
It is safeguarded on workbench 5-7, and between top beam 5-1 and tail boom 5-10 there are certain space convenient for staff
And maintenance work；Top of the height of rear position margining plate 5-8 not less than drag conveyor 6 and the bottom not higher than top beam 5-1, can
Tail boom 5-10 is set to form certain inclination, convenient for the landing of spoil.
Width is not less than twice of 6 scraper plate groove width of drag conveyor between the front and back limit plate of workbench 5-7, can
Drag conveyor 6 is set to have certain space to be slid and adjusted.
For the rear end face of tail boom 5-10 in the outside of rear position margining plate 5-8, the downside of tail boom 5-10 is inclined-plane, inclined-plane and rear limit
The upper edge of position plate 5-8 mutually overlaps.
Workbench 5-7 is connect by multiple bearing diagonals with gangue stopping device 5-5, and the stabilization of workbench 5-7 can be increased
Property.
The present invention provides a kind of coal mine gob dry packing methods, using a kind of coal mine gob dry packing system
System, is specifically implemented according to the following steps:
Step 1, when force piece is installed, drag conveyor 6 is placed on the workbench 5-7 of filling bracket 5, then
Jack 5-6 by filling bracket 5 adjusts the workbench 5-7 for filling bracket 5 to height needed for packing job, passes through
The pin shaft being arranged on gangue stopping device 5-5 is fixed；
Step 2, solid material is fitted into storage bin 1, passes through charging gear, rehandling facilities and the tubulose in storage bin 1
Belt conveyor 4 is transported to the surge bunker 2 in roadway 3, then passes through charging gear, rehandling facilities, tubular belt conveying in surge bunker 2
Solid material is transported on drag conveyor 6 by machine 4 and elevating conveyor 8；
Step 3, when working surface coal mining machine coal cutting, one by one or 6 discharging of drag conveyor on filling bracket 5 is opened in segmentation
Mouth 7, is offloaded to goaf for attal, is filled, and after coalcutter coal cutting, filling bracket 5 is single or in groups to Forward
Frame closes the discharge port 7 of drag conveyor 6 before filling bracket 5 is mobile, the promotion of the rear position margining plate 5-8 on filling bracket 5
Under, drag conveyor 7 moves forward simultaneously；
Step 4, continue coal cutting forward with working surface coal mining machine, repeat step 2 step 3, adopted until completing entire working face
The filling of dead zone.
A kind of coal mine gob dry packing system of the present invention, carries out returning well solid waste using tubulose conveyor belt
Transport realizes space curve transmission, high inclination-angle conveying, and carries out material conveying under enclosed environment, in transmission process not
Spreading, dust are few；Filling bracket 5 in filling system of the present invention is provided with workbench 5-7 and is provided with material through hole 5-
12, which can carry out discharging in conjunction with the discharge port 7 of drag conveyor 6, completes filling operation, and structure is steady, can be realized coal mining with
Fill parallel operations；And filling bracket 5 is provided with tail boom 5-10 and overlaps with rear position margining plate 5-8, forms certain gradient, is convenient for
Spoil etc. slides, and is protected drag conveyor 6 and staff, can be improved safety；Before filling in bracket 5
The height of limit plate 5-9 is not higher than the top of drag conveyor 6, and to staff, there are spaces, is convenient for maintenance work；It should
Filling system takes full advantage of the solid waste such as gangue, flyash, and filling operation face yield is big, realizes fortune big over long distances
Amount filling and coal mine detract lasting exploit；Placement method solid waste conveying engineering amount of the present invention is small, project investment is small, the duration
It is short, it mines and filling parallel operations, and do not influence to mine in stowing operation.
Claims (10)
1. a kind of coal mine gob dry packing system, which is characterized in that storage bin (1) and roadway including being set to ground
(3), the discharge port of the storage bin (1) passes through the tubular belt conveyor (4) being arranged in roadway (3) and is set to coal-getter
Make elevating conveyor (8) connection of face (9) end；Coal working face (9) is disposed with filling bracket (5), is provided in filling bracket (5)
Drag conveyor (6), the drag conveyor (6) are overlapped with elevating conveyor (8), the stripper cell of the drag conveyor (6)
It is interior to be equipped with discharge port (7).
2. a kind of coal mine gob dry packing system according to claim 1, which is characterized in that the roadway (3) is
Existing roadway newly tunnels roadway；Horizontal, vertical or distributed arrangement can be used in roadway in the tubular belt conveyor (4)
(3) in.
3. a kind of coal mine gob dry packing system according to claim 1, which is characterized in that further include being set to well
Surge bunker (2) in lane (3), the discharge port of the storage bin (1) and the feed inlet of surge bunker (2) pass through tubular belt conveyor
(4) it connects, the discharge port of the surge bunker (2) and the elevating conveyor (8) for being set to coal working face (9) end pass through tubular belt
Conveyer (4) connection.
4. a kind of coal mine gob dry packing system according to claim 1, which is characterized in that the storage bin (1)
It is provided with charging gear with the lower part of surge bunker (2), is provided with rehandling facilities, the rehandling facilities below the charging gear
It is connect with tubular belt conveyor (4).
5. a kind of coal mine gob dry packing system according to claim 1, which is characterized in that the filling bracket
(5) include pedestal (5-4), connect by multiple telescopic columns (5-2) with top beam (5-1) on the pedestal (5-4), it is described
It is also connected between pedestal (5-4) and top beam (5-1) four-bar mechanism (5-3), top beam (5-1) front end is connected with shield
Side board (5-11), the pedestal (5-4) be equipped with liftable gangue stopping device (5-5), the gangue stopping device (5-5) at least through
One jack (5-6) connect with pedestal (5-4), and gangue stopping device (5-5) top is connected with workbench (5-7), described
Workbench (5-7) is provided with material through hole (5-12), is provided with drag conveyor (6), institute on the workbench (5-7)
The rear end for stating workbench (5-7) gangue stopping device (5-5) is connected with rear position margining plate (5-8), and top beam (5-1) rear end is hinged with
Tail boom (5-10), while oil cylinder is also connected between top beam (5-1) and tail boom (5-10), tail boom (5-10) and rear position margining plate (5-
8) it mutually overlaps.
6. a kind of coal mine gob dry packing system according to claim 5, which is characterized in that the drag conveyor
(6) discharge port (7) is located at right above the material through hole (5-12) of workbench (5-7) and communicates therewith, and the material is logical
The section of via hole (5-12) is greater than drag conveyor (6) discharge port (7), and the width of the material through hole (5-12) is greater than scraper plate
The width of conveyer (6) discharge port (7).
7. a kind of coal mine gob dry packing system according to claim 5, which is characterized in that the workbench
The front end (5-7) is connected with front limit plate (5-9), and the height of the front limit plate (5-9) is not higher than the top of drag conveyor (6)
Portion, top of the height not less than drag conveyor (6) and the bottom not higher than top beam (5-1) of the rear position margining plate (5-8).
8. a kind of coal mine gob dry packing system according to claim 7, which is characterized in that the workbench
Width between (5-7) front limit plate and rear position margining plate is not less than twice of drag conveyor (6) scraper plate groove width.
9. a kind of coal mine gob dry packing system according to claim 8, which is characterized in that the tail boom (5-10)
Rear end face in the outside of rear position margining plate (5-8), the downside of the tail boom (5-10) is inclined-plane, inclined-plane and rear position margining plate (5-
8) upper edge mutually overlaps.
10. a kind of coal mine gob dry packing method, which is characterized in that use the described in any item one kind of claim 1-9
Coal mine gob dry packing system, is specifically implemented according to the following steps:
Step 1, when force piece is installed, drag conveyor (6) is placed on the workbench (5-7) of filling bracket (5),
The workbench (5-7) for filling bracket (5) is adjusted to needed for packing job by the jack (5-6) of filling bracket (5) again
Height, and be fixed with pin shaft；
Step 2, solid material is fitted into storage bin (1), passes through charging gear, rehandling facilities and the tubulose in storage bin (1)
Belt conveyor (4) is transported to the surge bunker (2) in roadway (3), then passes through charging gear, rehandling facilities, tubulose in surge bunker (2)
Solid material is transported on drag conveyor (6) by belt conveyor (4) and elevating conveyor (8)；
Step 3, when working surface coal mining machine coal cutting, one by one or drag conveyor (6) discharging in filling bracket (5) is opened in segmentation
Mouthful (7), are offloaded to goaf for attal, are filled, after coalcutter coal cutting, filling bracket (5) it is single or in groups to
Reach frame closes the discharge port (7) of drag conveyor (6), the rear limit in filling bracket (5) before filling bracket (5) is mobile
Under the promotion of plate (5-8), drag conveyor (7) moves forward simultaneously；
Step 4, continue coal cutting forward with working surface coal mining machine, repeat step 2 step 3, until completing entire work face goaf
Filling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910369057.1A CN109915203A (en) | 2019-05-05 | 2019-05-05 | A kind of coal mine gob dry packing system and placement method |
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| CN201910369057.1A CN109915203A (en) | 2019-05-05 | 2019-05-05 | A kind of coal mine gob dry packing system and placement method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110406951A (en) * | 2019-07-23 | 2019-11-05 | 华电郑州机械设计研究院有限公司 | A kind of method and apparatus controlling filling drag conveyor discharging window using ultrasonic distance measurement |
| CN110439610A (en) * | 2019-08-30 | 2019-11-12 | 陕西开拓建筑科技有限公司 | A kind of remote slurry filling transportation system in coal mine gob and method |
| CN114233359A (en) * | 2022-01-24 | 2022-03-25 | 中煤能源研究院有限责任公司 | Caving type gangue filling hydraulic support and filling method |
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