CN109751078A - A kind of coal working face end trigonum device for filling and method - Google Patents
A kind of coal working face end trigonum device for filling and method Download PDFInfo
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- CN109751078A CN109751078A CN201910161576.9A CN201910161576A CN109751078A CN 109751078 A CN109751078 A CN 109751078A CN 201910161576 A CN201910161576 A CN 201910161576A CN 109751078 A CN109751078 A CN 109751078A
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- gangue
- face end
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- spiral
- waste rock
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- 239000003245 coal Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000002910 solid waste Substances 0.000 claims abstract description 13
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 230000009471 action Effects 0.000 claims abstract description 11
- 239000010881 fly ash Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000010878 waste rock Substances 0.000 claims description 50
- 238000005065 mining Methods 0.000 claims description 11
- 239000011435 rock Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000003245 working effect Effects 0.000 abstract 2
- 230000007812 deficiency Effects 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
- 239000010883 coal ash Substances 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The invention discloses a kind of coal working face end trigonum device for filling and method, which includes automatic moving type gangue reprint vehicle, screw power device, spoil spiral conveying tube, single track device for hoisting, face end hydraulic support and rear portion passage baffle.When filling operation, the solid waste such as gangue or flyash are transported by auxiliary conveying equipments to automatic moving type gangue reprint vehicle spoil scraping plate transmission mechanism, it is reprinted into spoil spiral conveying tube feed inlet, spoil spiral conveying tube is hung on stope drift active workings top plate and face end hydraulic support by monorail crane, the solid waste such as spoil or flyash are transported in the stope drift active workings at face end hydraulic support rear under the action of screw power device, it accumulated, tamped under the action of rear portion elapses plate washer, form waste filling body.The present invention overcomes deficiencies existing for existing stowage unit or technology, so that waste filling work is more safe and efficient, economical.
Description
Technical Field
The invention belongs to the field of coal mine filling mining technology and equipment, and particularly relates to a coal face end triangular area filling device and method.
Background
The underground coal mine can generate tunneling waste rocks due to roadway engineering during construction and production, the sources of the tunneling waste rocks are different, the yield is not fixed, the tunneling waste rocks are lifted to the ground in the traditional treatment mode and stacked to form a waste rock mountain, the treatment mode not only can generate huge cost due to waste rock lifting and transportation, but also can pollute the ground environment. Coal gangue underground filling becomes a development direction of the comprehensive utilization of the gangue in modern mines.
At present, the underground filling mode of the gangue mainly comprises two modes of comprehensive mechanized solid filling and roadway type gangue throwing filling. The comprehensive mechanized solid filling is that waste rocks after ground crushing are conveyed to a porous bottom-dump scraper conveyor behind a filling hydraulic support by a belt conveyor, and finally, filling and tamping are carried out by a tamping mechanism behind the filling hydraulic support. The filling method has the problems that the filling working face is a newly-added working face, a set of coal mining equipment is required to be prepared besides the filling equipment, and the initial investment is large; secondly, solid wastes such as waste rock, coal ash and the like are exposed in the air, so that dust is easily raised, and the air environment in the roadway is polluted; and when the filling working face is used for downward mining, the filling effect is poor, and the requirement of solid filling coal mining on the integrity of the top plate is high.
The tunnel type waste rock throwing and filling means that a continuous mining machine or a heading machine is used for digging out a filling tunnel (coal tunnel), and waste rock is filled in the filling tunnel by using equipment such as a waste rock filling conveyor, a high-speed power waste rock throwing machine and the like after the filling tunnel is dug out.
In a stoping roadway behind a hydraulic support at the end of a coal face, a triangular area with the length of 15-20 m can be formed due to the O-X fracture form of a goaf top plate and the anchor rod (cable) supporting function of the stoping roadway, the top plate of the triangular area is suspended and difficult to collapse, a large space is formed, the traditional treatment mode is that hydraulic fracturing or blasting technology is adopted for forced caving, and great potential safety hazards exist. If the tunneling waste rock is filled into the area, the waste rock can be treated, the top plate of the triangular area can be well controlled, however, the middle of the end hydraulic support of the traditional working face is provided with a four-bar structure, the rear part of the end hydraulic support of the traditional working face is provided with a shield beam, and the filling equipment cannot enter the triangular area and cannot perform filling work.
Disclosure of Invention
The invention aims to provide a coal face end triangular area filling device and a method, which are used for overcoming the defects of the existing filling equipment or technology and enabling gangue filling work to be safer, more efficient and more economical.
The invention is realized by adopting the following technical scheme:
a filling device for a triangular area at the end of a coal face comprises a self-moving gangue transfer car, a spiral power device, a gangue spiral conveying pipe, a single-rail hoisting device, a hydraulic support at the end of the face and a rear pushing baffle plate; wherein,
during the use, working face end hydraulic support and rear portion pass baffle all set up at the coal face, waste rock spiral delivery pipe hangs on the roof and the working face end hydraulic support in stoping tunnel through single track hoist device, the inside helical blade that is provided with of waste rock spiral delivery pipe, one end is provided with the spiral power device who is used for driving helical blade, the top is provided with waste rock spiral delivery pipe feed inlet, the other end is waste rock spiral delivery pipe discharge gate, from moving type waste rock transfer car is used for transferring the waste rock to the waste rock spiral delivery pipe in through waste rock spiral delivery pipe feed inlet.
The invention has the further improvement that the self-moving gangue loading vehicle comprises a gangue scraper conveying mechanism, a walking mechanism, a slewing mechanism and a gangue bin hopper; the waste rock material bin hopper is arranged on the traveling mechanism and is adjusted to steer through the swing mechanism, and the waste rock material bin hopper is used for storing waste rocks and transferring the waste rocks to the feed inlet of the waste rock spiral conveying pipe through the waste rock scraper conveying mechanism.
The invention is further improved in that the gangue spiral conveying pipe is formed by connecting a plurality of sections of hinged steel pipes in series, each transmission part adopts a floating connection mode, and the suspension bearing adopts a cross axle universal shaft connector connection structure.
The invention has the further improvement that the gangue spiral conveying pipe can be connected in a bending way, and the included angle between the gangue spiral conveying pipe and the top plate of the mining roadway is 0-30 degrees.
The invention has the further improvement that the hydraulic support at the end of the working face is of a split structure, and the gangue spiral conveying pipe is hung on the top beam of the support.
The invention is further improved in that the working face end hydraulic support is provided with a rear tail beam of the working face end hydraulic support, the part of the rear tail beam for hanging the gangue spiral conveying pipe can swing, and the swing distance is not more than the whole width of the working face end hydraulic support.
The invention is further improved in that the movement stroke of the rear pushing baffle can reach the landing point of the gangue, so as to ensure that the gangue is densely piled.
A coal face end triangular area filling method adopts the coal face end triangular area filling device and comprises the following steps:
during filling work, the coal gangue or coal ash solid waste is transported to a self-moving gangue transfer car through auxiliary transportation equipment, and is further transferred into a feed inlet of a gangue spiral conveying pipe; under the action of a spiral power device, coal gangue or fly ash solid waste is conveyed into a mining roadway behind a hydraulic support at the end of a working face through a gangue spiral conveying pipe, and is stacked and tamped under the action of a rear pushing baffle plate to form a gangue filling body; when the coal face is pushed forwards, the filling device at the end of the coal face in the triangular area moves forwards along with the coal face.
The invention has the following beneficial technical effects:
the invention provides a filling device for a triangular area at the end of a coal face. The device loops through from moving formula waste rock transfer car and waste rock auger delivery pipe and fills in the pit with solid waste such as gangue or fly ash, and equipment is few, the investment is little, does not have the requirement to working face roof condition, and make full use of abandonment tunnel carries out waste disposal, can also prevent because of the raise dust that other transportation mode arouses, pollutes the air circumstance in whole stoping tunnel.
Furthermore, each transmission part in the gangue spiral conveying pipe adopts a floating connection mode, the suspension bearing is of a universal joint structure, the spiral blade, the suspension bearing and the tail part form an integral rotary floating body, the integral rotary floating body can freely rotate and avoid along with conveying resistance in a certain range, material blocking and blockage are avoided, the process is smooth, the filling work is efficient, and the parallel operation of mining and filling can be realized.
The invention provides a coal face end triangular area filling method, during filling work, solid waste such as coal gangue or coal ash is transported to a self-moving type gangue transfer car loading mechanism through auxiliary transportation equipment and transferred to a feed inlet of a gangue spiral conveying pipe, the gangue spiral conveying pipe is hung on a top plate of a stoping roadway and a hydraulic support at the end of a working face through a monorail crane, the solid waste such as the gangue or the coal ash is conveyed to the stoping roadway behind the hydraulic support at the end of the working face under the action of a spiral power device, and the solid waste is stacked and tamped under the action of a rear pushing baffle plate to form a gangue filling body. When the coal face is pushed forwards, the filling device at the end of the coal face moves forwards along with the filling device under the action of the moving part and the guide rail.
Drawings
FIG. 1 is a schematic structural diagram of filling of a coal face end triangular area.
Fig. 2 is a schematic view of the self-moving gangue transfer car, wherein fig. 2(a) is a front view, fig. 2(b) is a top view, and fig. 2(c) is a side view.
Fig. 3 is a schematic view of the gangue spiral conveying pipe.
Fig. 4 is a schematic view of a face end hydraulic mount.
Fig. 5 is a schematic diagram of arrangement of filling roadways in a triangular area at the end of a coal face.
Description of reference numerals:
1. a self-moving gangue transfer vehicle; 2. a screw power device; 3. a spiral waste rock conveying pipe; 4. a monorail crane device; 5. a working face end hydraulic support; 6. a feeding hole of a gangue spiral conveying pipe; 7. a gangue scraper conveying mechanism; 8. a traveling mechanism; 9. a swing mechanism; 10. a waste rock material hopper; 11. hinging a steel pipe; 12. a cross axle and universal shaft connector connecting structure; 13. the end of the working face is connected with a rear tail beam of the hydraulic support; 14. a rear pushing baffle plate; 15. stoping the roadway; 16. a coal face; 17. gangue filling bodies, 18 and spiral blades.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 5, the coal face end triangular area filling device provided by the invention comprises a self-moving gangue transfer car 1, a spiral power device 2, a gangue spiral conveying pipe 3, a monorail hoisting device 4, a face end hydraulic support 5 and a rear pushing baffle plate 14. During the use, working face end hydraulic support 5 and rear portion pass through baffle 14 and all set up at coal face 16, waste rock spiral delivery pipe 3 hangs on the roof of stoping tunnel 15 and working face end hydraulic support 5 through single track hoist device 4, waste rock spiral delivery pipe 3 inside is provided with helical blade 18, one end is provided with the spiral power device 2 that is used for driving helical blade 18, the top is provided with waste rock spiral delivery pipe feed inlet 6, the other end is waste rock spiral delivery pipe discharge gate, from moving waste rock transfer car 1 is used for transferring the waste rock to waste rock spiral delivery pipe 3 in through waste rock spiral delivery pipe feed inlet 6.
The self-moving gangue loading vehicle 1 comprises a gangue scraper conveying mechanism 7, a walking mechanism 8, a slewing mechanism 9 and a gangue bin hopper 10; the waste rock material bin 10 is arranged on the walking mechanism 8, the rotation direction is adjusted through the swing mechanism 9, the waste rock material bin 10 is used for storing waste rocks, and the waste rocks are transferred to the feed inlet 6 of the waste rock spiral conveying pipe through the waste rock scraper conveying mechanism 7.
The gangue spiral conveying pipe 3 is formed by connecting a plurality of sections of hinged steel pipes 11 in series, each transmission part adopts a floating connection mode, and a suspension bearing adopts a cross axle universal shaft connector connection structure 12.
The gangue spiral conveying pipe 3 can be connected in a bending mode, and the included angle between the gangue spiral conveying pipe 3 and the top plate of the stoping roadway 15 is 0-30 degrees.
The working face end hydraulic support 5 is of a split structure, and the gangue spiral conveying pipe 3 is hung on a support top beam of the gangue spiral conveying pipe.
The working face end hydraulic support 5 is provided with a working face end hydraulic support rear tail beam 13, the part of the waste rock spiral conveying pipe 3 hung on the tail beam can swing, and the swing distance is not greater than the whole width of the working face end hydraulic support 5.
The movement stroke of the rear pushing baffle 14 can reach the landing point of the gangue, and the gangue is guaranteed to be stacked compactly.
The invention provides a filling method for a triangular area at the end of a coal face, which comprises the following steps:
during filling, solid wastes such as coal gangue or fly ash are transported to a gangue scraper conveying mechanism 7 of a self-moving gangue transfer vehicle through auxiliary transportation equipment and transferred into a feed inlet 6 of a gangue spiral conveying pipe; under the action of a spiral power device 2, solid wastes such as gangue or fly ash are conveyed into a mining roadway behind a working face end hydraulic support 5, and are stacked and tamped through a gangue spiral conveying pipe 3 under the action of a rear pushing baffle plate 14 to form a gangue filling body 17; when the coal face 16 is pushed forward, the filling device at the end of the coal face in the triangular area moves forward along with the coal face until the whole stoping roadway 15 is filled.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that those skilled in the art of the present invention could make this invention without departing from the principles of the present invention. Several modifications and embellishments may also be made, which should also be considered as within the scope of the present invention.
Claims (8)
1. A coal face end triangular area filling device is characterized by comprising a self-moving gangue transfer car (1), a spiral power device (2), a gangue spiral conveying pipe (3), a single rail hoisting device (4), a face end hydraulic support (5) and a rear pushing baffle (14); wherein,
during the use, working face end hydraulic support (5) and rear portion pass through baffle (14) and all set up in coal face (16), waste rock spiral delivery pipe (3) are hung on roof and working face end hydraulic support (5) of back production tunnel (15) through single track hoist device (4), waste rock spiral delivery pipe (3) inside is provided with helical blade (18), one end is provided with spiral power device (2) that are used for driving helical blade (18), the top is provided with waste rock spiral delivery pipe feed inlet (6), the other end is waste rock spiral delivery pipe discharge gate, from moving waste rock transfer car (1) are used for transferring the waste rock to waste rock spiral delivery pipe (3) in through waste rock spiral delivery pipe feed inlet (6).
2. The coal face end triangular space filling device according to claim 1, characterized in that the self-moving gangue loading vehicle (1) comprises a gangue scraper conveying mechanism (7), a walking mechanism (8), a slewing mechanism (9) and a gangue bin hopper (10); the waste rock material bin (10) is arranged on the walking mechanism (8) and is adjusted to turn through the swing mechanism (9), and the waste rock material bin (10) is used for storing waste rocks and transferring the waste rocks to a feed inlet (6) of a waste rock spiral conveying pipe through the waste rock scraper conveying mechanism (7).
3. The filling device for the coal face end triangular area according to claim 1, characterized in that the gangue spiral conveying pipe (3) is composed of a plurality of sections of hinged steel pipes (11) which are connected in series, each transmission part adopts a floating connection mode, and the suspension bearing adopts a cross universal shaft connector connection structure (12).
4. A coal face end delta filling device according to claim 3, characterized in that the gangue spiral conveying pipe (3) can be connected in a bending way, and the included angle between the gangue spiral conveying pipe (3) and the top plate of the mining roadway (15) is 0-30 degrees.
5. The filling device for the coal face end triangular area according to claim 1, characterized in that the hydraulic support (5) for the face end is of a split structure, and the gangue spiral conveying pipe (3) is hung on a support top beam thereof.
6. The filling device for the coal face end triangular space according to claim 1, characterized in that the hydraulic support for the working face end (5) is provided with a rear tail beam (13) of the hydraulic support for the working face end, the part of the rear tail beam for hanging the spiral gangue conveying pipe (3) can swing, and the swing distance is not more than the whole width of the hydraulic support for the working face end (5).
7. The filling device for the coal face end delta according to claim 1, characterized in that the movement stroke of the rear pushing baffle (14) can reach the landing point of gangue, so as to ensure that the gangue is densely piled.
8. A coal face end gore filling method which employs a coal face end gore filling apparatus of any one of claims 1 to 7, comprising:
during filling, the coal gangue or fly ash solid waste is transported to a self-moving gangue transfer car (1) through auxiliary transportation equipment and further transferred into a feed port (14) of a gangue spiral conveying pipe; under the action of a spiral power device (2), coal gangue or fly ash solid waste is conveyed into a mining roadway (15) behind a hydraulic support (5) at the end of a working face through a gangue spiral conveying pipe (3), and is piled and tamped under the action of a rear pushing baffle plate (14) to form a gangue filling body (17); when the coal face (16) is pushed forward, the filling device of the coal face end triangle area moves forward along with the coal face end triangle area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161576.9A CN109751078B (en) | 2019-03-04 | 2019-03-04 | Device and method for filling triangular area at end head of coal face |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910161576.9A CN109751078B (en) | 2019-03-04 | 2019-03-04 | Device and method for filling triangular area at end head of coal face |
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| CN109751078A true CN109751078A (en) | 2019-05-14 |
| CN109751078B CN109751078B (en) | 2024-07-30 |
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| CN201910161576.9A Active CN109751078B (en) | 2019-03-04 | 2019-03-04 | Device and method for filling triangular area at end head of coal face |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043138A (en) * | 2022-06-20 | 2022-09-13 | 宁夏天地西北煤机有限公司 | Coal mine underground gangue backfill continuous conveying equipment and gangue backfill method |
| CN115539122A (en) * | 2022-11-22 | 2022-12-30 | 山西正大恒通科技有限公司 | Coal gangue underground filling system and method |
| CN117432464A (en) * | 2023-09-21 | 2024-01-23 | 中国矿业大学 | Long-acting control method for high-compactness filling mining rock stratum under important facilities |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115043138A (en) * | 2022-06-20 | 2022-09-13 | 宁夏天地西北煤机有限公司 | Coal mine underground gangue backfill continuous conveying equipment and gangue backfill method |
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| CN115539122A (en) * | 2022-11-22 | 2022-12-30 | 山西正大恒通科技有限公司 | Coal gangue underground filling system and method |
| CN115539122B (en) * | 2022-11-22 | 2023-02-28 | 山西正大恒通科技有限公司 | Coal gangue underground filling system and method |
| CN117432464A (en) * | 2023-09-21 | 2024-01-23 | 中国矿业大学 | Long-acting control method for high-compactness filling mining rock stratum under important facilities |
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| CN109751078B (en) | 2024-07-30 |
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