CN109751078B - Device and method for filling triangular area at end head of coal face - Google Patents
Device and method for filling triangular area at end head of coal face Download PDFInfo
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- CN109751078B CN109751078B CN201910161576.9A CN201910161576A CN109751078B CN 109751078 B CN109751078 B CN 109751078B CN 201910161576 A CN201910161576 A CN 201910161576A CN 109751078 B CN109751078 B CN 109751078B
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- 239000003245 coal Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002910 solid waste Substances 0.000 claims abstract description 12
- 239000010881 fly ash Substances 0.000 claims abstract description 11
- 239000010878 waste rock Substances 0.000 claims description 22
- 239000002699 waste material Substances 0.000 claims description 8
- 238000005065 mining Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- -1 gangue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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Abstract
The invention discloses a filling device and a filling method for a triangular area of a working face end, wherein the device comprises a self-moving gangue transfer vehicle, a spiral power device, a gangue spiral conveying pipe, a monorail crane device, a working face end hydraulic support and a rear pushing baffle. During filling, solid wastes such as coal gangue or fly ash are transported to a gangue scraper conveying mechanism of a self-moving gangue transfer vehicle through auxiliary transportation equipment, transferred to a feeding hole of a gangue spiral conveying pipe, and hung on a top plate of a stoping roadway and a hydraulic support at the end of a working face by a monorail crane. The invention overcomes the defects of the existing filling equipment or technology, and ensures that the gangue filling work is safer, more efficient and more economical.
Description
Technical Field
The invention belongs to the field of coal mine filling mining technology and equipment, and particularly relates to a device and a method for filling triangular areas at the end of a coal face.
Background
The underground coal mine can generate tunneling gangue due to roadway engineering during construction and production, the tunneling gangue has different sources and variable yield, the tunneling gangue is lifted to the ground in a traditional treatment mode and piled up to form a gangue dump, and the treatment mode not only can generate huge cost due to gangue lifting and transportation, but also can pollute the ground environment. The underground filling of coal gangue has become the development direction of comprehensive utilization of modern mine gangue.
Currently, the underground gangue filling mode mainly comprises two modes of comprehensive mechanical solid filling and roadway type gangue throwing filling. The comprehensive mechanized solid filling is to convey the crushed waste rock on the ground to a porous bottom unloading scraper conveyor behind a filling hydraulic support by using a belt conveyor, and finally to fill and tamp by a tamping mechanism behind the filling hydraulic support. The filling method has the problems that the filling working surface is a newly added working surface, a set of coal mining equipment is needed to be prepared besides filling equipment, and the initial investment is large; secondly, solid wastes such as gangue, fly ash and the like are exposed in the air, so that dust emission is easy to cause, and the air environment in a roadway is polluted; moreover, when the filling working face is prone to mining, the filling effect is poor, and the requirements of solid filling coal mining on the integrity of the top plate are high.
The method is characterized in that a filling space is required to be dug out firstly, then the gangue filling can be carried out, and the gangue filling machine, the gangue transfer conveyor and the like are required to be moved frequently during the gangue filling, so that the process smoothness is poor, a coal pillar is required to be reserved between the two filling lanes, and a certain amount of coal resources are lost.
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 is formed due to the O-X fracture form of a top plate of a goaf and the supporting effect of an anchor rod (rope) of the stoping roadway, the top plate of the triangular area is suspended and is difficult to collapse, a large space is formed, and the traditional treatment mode adopts a hydraulic fracturing or blasting technology to forcedly caving, so that a large potential safety hazard exists. If the tunneling gangue is filled in the area, the gangue can be treated, a good control effect can be achieved on the top plate of the triangular area, but the traditional working face end hydraulic support is provided with a four-bar structure in the middle and a shield beam in the rear, and filling equipment cannot enter the triangular area and cannot perform filling work.
Disclosure of Invention
The invention aims to provide a filling device and a filling method for a triangular region at the end of a coal face, which are used for overcoming the defects of the existing filling equipment or technology, so that the gangue filling work is safer, more efficient and more economical.
The invention is realized by adopting the following technical scheme:
A filling device for a triangular area of a working face end comprises a self-moving gangue transfer vehicle, a spiral power device, a gangue spiral conveying pipe, a monorail crane device, a working face end hydraulic support and a rear pushing baffle; wherein,
During the use, working face end hydraulic support and rear portion pass baffle all set up at the coal face, and waste rock screw conveyer pipe hangs on the roof and the working face end hydraulic support of stoping tunnel through single track hoist device, and waste rock screw conveyer pipe is inside to be provided with helical blade, and one end is provided with the spiral power device that is used for driving helical blade, and the top is provided with waste rock screw conveyer pipe feed inlet, and the other end is waste rock screw conveyer pipe discharge gate, and self-moving waste rock transfer car is used for carrying waste rock to waste rock screw conveyer pipe through waste rock screw conveyer pipe feed inlet transfer.
The invention is further improved in that the self-moving gangue loading vehicle comprises a gangue scraper conveying mechanism, a traveling mechanism, a revolving mechanism and a gangue storage bin bucket; the gangue storage hopper is arranged on the travelling mechanism, steering is adjusted through the slewing mechanism, and is used for storing gangue and transferring the gangue to the feeding port of the gangue spiral conveying pipe through the gangue 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 hanging bearing adopts a cross shaft universal shaft connector connection structure.
The invention is further improved in that the gangue screw conveying pipe can be connected in a bending way, and the included angle between the gangue screw conveying pipe and the top plate of the stoping roadway is 0-30 degrees.
The invention is further improved in 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, which is used for hanging the gangue spiral conveying pipe, can swing, and the swing distance is not larger 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 falling point of the gangue, so as to ensure that the gangue is compactly stacked.
The method for filling the triangular region at the end of the coal face adopts the device for filling the triangular region at the end of the coal face, and comprises the following steps:
During filling, coal gangue or fly ash solid waste is transported to a self-moving gangue transfer vehicle through auxiliary transportation equipment, and is further transferred to 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 stoping roadway behind a hydraulic support at the end of a working face through a gangue spiral conveying pipe, and is piled and tamped under the action of a rear pushing baffle plate to form a gangue filling body; when the coal face is advanced, the coal face end tripod filling device moves forward along with the coal face end tripod filling device.
The invention has the following beneficial technical effects:
The invention provides a filling device for a triangular region of a coal face end, which comprises a self-moving gangue transfer vehicle, a spiral power device, a gangue spiral conveying pipe, a monorail crane device, a working face end hydraulic support and a rear pushing baffle. The device sequentially carries out underground filling on solid wastes such as coal gangue or fly ash through the self-moving gangue transfer vehicle and the gangue spiral conveying pipe, has less equipment and small investment, has no requirement on the conditions of the top plate of the working face, fully utilizes the waste roadway to carry out waste treatment, and can also prevent dust emission caused by other conveying modes from polluting the air environment of the whole stoping roadway.
Furthermore, each transmission part in the gangue spiral conveying pipe adopts a floating connection mode, the hanging bearing is of a universal joint structure, the spiral blade, the hanging bearing and the tail part form an integral rotating body, the gangue spiral conveying pipe can freely rotate along with conveying resistance in a certain range to avoid, the gangue spiral conveying pipe is free of blocking materials and blocking materials, the process is smooth, the filling work is efficient, and parallel operation of mining and filling can be realized.
The invention provides a coal face end triangular region filling method, in the filling process, solid wastes such as coal gangue or fly ash are transported to a loading mechanism of a self-moving gangue transfer vehicle through auxiliary transportation equipment, transferred to a feeding port of a gangue spiral conveying pipe, the gangue spiral conveying pipe is hung on a top plate of a stoping roadway and a working face end hydraulic support by a monorail crane, the solid wastes such as the gangue or the fly ash are transported to the stoping roadway behind the working face end hydraulic support under the action of a spiral power device, and the solid wastes are piled and tamped under the action of a rear pushing baffle plate to form a gangue filling body. When the coal face is pushed forward, the triangular area filling device at the end head of the coal face moves forward under the action of the moving part and the guide rail.
Drawings
FIG. 1 is a schematic diagram of a face end delta fill configuration.
Fig. 2 is a schematic view of a self-moving type refuse transfer vehicle, in which 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 a gangue screw conveyer pipe.
Fig. 4 is a schematic view of a face end hydraulic mount.
FIG. 5 is a schematic diagram of a coal face end delta filling roadway layout.
Reference numerals illustrate:
1. self-moving gangue transfer vehicle; 2. a screw power device; 3. gangue spiral conveying pipe; 4. a monorail crane device; 5. hydraulic support of working face end; 6. gangue spiral conveying pipe feed inlet; 7. a gangue scraper conveying mechanism; 8. a walking mechanism; 9. a slewing mechanism; 10. a gangue storage bin; 11. hinging the steel pipe; 12. a cross shaft universal shaft connector connecting structure; 13. a working face end hydraulic support rear tail beam; 14. a rear pushing baffle; 15. stoping the roadway; 16. a coal face; 17. waste rock filling body 18, helical blade.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the invention provides a coal face end triangular region filling device, which comprises a self-moving gangue transfer vehicle 1, a spiral power device 2, a gangue spiral conveying pipe 3, a monorail crane device 4, a face end hydraulic support 5 and a rear pushing baffle 14. During the use, working face end hydraulic support 5 and rear portion lapse baffle 14 all set up at coal face 16, gangue screw conveyer 3 hangs on the roof of stoping tunnel 15 and working face end hydraulic support 5 through monorail hoist device 4, gangue screw conveyer 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 gangue screw conveyer feed inlet 6, the other end is gangue screw conveyer discharge gate, self-moving gangue transfer car 1 is used for carrying gangue to gangue screw conveyer 3 through gangue screw conveyer feed inlet 6.
The self-moving type gangue loading vehicle 1 comprises a gangue scraper conveying mechanism 7, a traveling mechanism 8, a revolving mechanism 9 and a gangue storage bin bucket 10; the gangue storage hopper 10 is arranged on the travelling mechanism 8, steering is adjusted through the rotary mechanism 9, the gangue storage hopper 10 is used for storing gangue, and the gangue is transferred to the position of the gangue spiral conveying pipe feeding hole 6 through the gangue 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 hanging bearing adopts a cross shaft universal shaft connector connection structure 12.
The gangue spiral conveying pipe 3 can be connected in a bending way, and an included angle between the gangue spiral conveying pipe 3 and the top plate of the stoping roadway 15 is 0-30 degrees.
The hydraulic support 5 at the end of the working face is of a split structure, and the gangue spiral conveying pipe 3 is hung on a top beam of the support.
The working face end hydraulic support 5 is provided with a working face end hydraulic support rear tail beam 13, the part of the hanging gangue spiral conveying pipe 3 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 falling point of the gangue, so as to ensure that the gangue is piled up compactly.
The invention provides a filling method of a triangular area of a coal face end, 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 are transferred to a gangue spiral conveying pipe feeding port 6; solid wastes such as gangue or fly ash are conveyed into a stoping roadway behind a working face end hydraulic support 5 under the action of a spiral power device 2, and are piled and tamped through a gangue spiral conveying pipe 3 under the action of a rear pushing baffle 14 to form a gangue filling body 17; as the coal face 16 advances forward, the face end delta filling device moves forward therewith until the entire extraction roadway 15 is filled.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that it will be apparent to those skilled in the art of the invention that the principles of the invention may be practiced without departing from the scope of the invention. Several modifications or color rendering may also be made, which modifications and color rendering should also be considered as the scope of the present invention.
Claims (5)
1. The device is characterized by comprising a self-moving gangue transfer vehicle (1), a spiral power device (2), a gangue spiral conveying pipe (3), a monorail crane device (4), a working face end hydraulic support (5) and a rear pushing baffle (14); wherein,
When the waste rock self-moving type coal mining system is used, a working face end hydraulic support (5) and a rear pushing baffle (14) are both arranged on a coal mining working face (16), a waste rock spiral conveying pipe (3) is hung on a top plate of a stoping roadway (15) and the working face end hydraulic support (5) through a monorail crane device (4), spiral blades (18) are arranged in the waste rock spiral conveying pipe (3), a spiral power device (2) for driving the spiral blades (18) is arranged at one end of the waste rock spiral conveying pipe, a waste rock spiral conveying pipe feeding hole (6) is arranged at the top of the waste rock spiral conveying pipe, a waste rock spiral conveying pipe discharging hole is formed in the other end of the waste rock spiral conveying pipe, and a self-moving type waste rock transfer vehicle (1) is used for transferring waste rock into the waste rock spiral conveying pipe (3) through the waste rock spiral conveying pipe feeding hole (6);
The self-moving gangue loading vehicle (1) comprises a gangue scraper conveying mechanism (7), a traveling mechanism (8), a revolving mechanism (9) and a gangue storage hopper (10); the waste material bin hopper (10) is arranged on the travelling mechanism (8), steering is adjusted through the rotary mechanism (9), the waste material bin hopper (10) is used for storing waste materials, and the waste materials are transferred to the feeding hole (6) of the waste material spiral conveying pipe through the waste material 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 hanging bearing adopts a cross shaft universal shaft device connection structure (12); 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 stoping roadway (15) is 0-30 degrees.
2. The filling device for the triangular space of the end head of the coal face according to claim 1, wherein the hydraulic support (5) of the end head of the coal face is of a split type structure, and the gangue screw conveying pipe (3) is hung on a top beam of the support.
3. The coal face end triangular space filling device according to claim 1, wherein the face end hydraulic support (5) is provided with a face end hydraulic support rear tail beam (13) which can swing at a position where the gangue screw conveying pipe (3) is hung, and the swing distance is not greater than the whole width of the face end hydraulic support (5).
4. The filling device for the triangular space of the end head of the coal face according to claim 1, wherein the movement stroke of the rear pushing baffle (14) can reach the falling point of the gangue, and the device is used for ensuring that the gangue is densely piled.
5. A method of face end face delta filling, characterized in that the method employs a face end face delta filling apparatus as claimed in any one of claims 1 to 4, comprising:
During filling, coal gangue or fly ash solid waste is transported to a self-moving gangue transfer vehicle (1) through auxiliary transportation equipment, and is further transferred to a feed inlet of a gangue spiral conveying pipe; coal gangue or fly ash solid waste is conveyed into a stoping roadway (15) behind a working face end hydraulic support (5) through a gangue spiral conveying pipe (3) under the action of a spiral power device (2), and is piled and tamped under the action of a rear pushing baffle (14) to form a gangue filling body (17); as the coal face (16) advances, the face end delta filling device moves forward therewith.
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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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| 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 CN109751078A (en) | 2019-05-14 |
| CN109751078B true CN109751078B (en) | 2024-07-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111485929A (en) * | 2020-05-19 | 2020-08-04 | 中煤能源研究院有限责任公司 | Fully-mechanized coal mining gangue-throwing filling hydraulic support and filling method thereof |
| CN115043138B (en) * | 2022-06-20 | 2023-06-09 | 宁夏天地西北煤机有限公司 | Continuous conveying equipment for underground gangue backfill of coal mine and gangue backfill 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 |
| CN117432464B (en) * | 2023-09-21 | 2024-09-10 | 中国矿业大学 | Long-acting control method for high-compactness filling mining rock stratum under important facilities |
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| GB532759A (en) * | 1939-09-07 | 1941-01-30 | Mavor & Coulson Ltd | Improvements in or connected with conveyor systems |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3114372A1 (en) * | 1981-04-09 | 1982-12-30 | Maschinenfabrik Karl Brieden & Co, 4630 Bochum | Pneumatic conveyor for dam building material in underground mining |
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| CN209780954U (en) * | 2019-03-04 | 2019-12-13 | 中煤能源研究院有限责任公司 | Coal face end triangular space filling device |
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