CN111485929A - Fully-mechanized coal mining gangue-throwing filling hydraulic support and filling method thereof - Google Patents
Fully-mechanized coal mining gangue-throwing filling hydraulic support and filling method thereof Download PDFInfo
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- CN111485929A CN111485929A CN202010426054.XA CN202010426054A CN111485929A CN 111485929 A CN111485929 A CN 111485929A CN 202010426054 A CN202010426054 A CN 202010426054A CN 111485929 A CN111485929 A CN 111485929A
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- 239000003245 coal Substances 0.000 title claims abstract description 78
- 238000005065 mining Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010878 waste rock Substances 0.000 claims abstract description 61
- 238000007599 discharging Methods 0.000 claims description 16
- 239000002699 waste material Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0017—Pile type supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
- B65G15/42—Belts or like endless load-carriers made of rubber or plastics having ribs, ridges, or other surface projections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/04—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels
- B65G19/06—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/10—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
- B65G21/12—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof to allow adjustment of position of load-carrier or traction element as a whole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0472—Supports specially adapted for people walking or transporting material
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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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
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
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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
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a waste rock filling hydraulic support for fully mechanized mining and a filling method thereof, wherein the hydraulic support comprises a waste rock filling hydraulic support without a tamping mechanism and a belt waste rock filling mechanism at the rear part of the waste rock filling hydraulic support, the waste rock filling hydraulic support without the tamping mechanism consists of a front top beam, a rear tail beam, a base, four stand columns and four connecting rods, wherein the four stand columns and the four connecting rods are connected between the front top beam, the rear tail beam and the base, and a porous bottom-dump scraper conveyor hung on the rear tail beam is also arranged; the waste rock belt throwing mechanism consists of a rear seat, a vertical lifting oil cylinder, a belt conveyor, a horizontal pulling oil cylinder and a rear baffle, and the inclination angle of the belt conveyor is 10-45 degrees. The filling method comprises the following steps: when coal is cut, a rear scraper gangue leakage hole of the filling hydraulic support is opened, a rear belt conveyor is started, gangue falls onto the belt conveyor from the gangue leakage hole, and the belt conveyor rotates at a high speed to throw the gangue into a goaf to realize filling. The invention realizes the replacement of ramming by throwing, has long throwing distance and large height and high filling efficiency, and is widely applied to the fields of coal mine filling mining, gob-side entry retaining and the like.
Description
Technical Field
The invention belongs to the field of coal mine filling and mining, and particularly relates to a fully mechanized coal mining gangue dumping filling hydraulic support and a filling method thereof.
Background
The coal gangue is a solid waste discharged in the coal mining and washing processing processes. The coal gangue in China is accumulated and stockpiled by more than 50 hundred million tons, and is continuously increased at the speed of 3.0-3.5 hundred million tons per year, and the annual emission of the coal gangue in China is expected to be increased to more than 7.29 hundred million tons by 2020. The large amount of stockpiling of the coal gangue not only wastes land resources, but also can generate the conditions of spontaneous combustion, rain, argillization and the like, and can cause serious harm to the environment. The filling coal mining method for disposing the coal gangue in the working face goaf can reduce the discharge of solid wastes of a coal mine, reduce mining subsidence disasters and improve the recovery rate of mine resources, is one of key technical approaches for realizing green mining of the coal mine, and forms a technical framework for directly filling and mining the coal by the gangue at present, wherein the technical framework comprises a fully-mechanized gangue filling technology, a common-mining gangue filling technology, an excavation filling technology and the like. The rear part of a waste filling hydraulic support adopted by the fully-mechanized waste filling technology is provided with a multi-hole bottom-dump scraper conveyor and a tamping mechanism, a waste leakage hole leaks filling materials into a goaf, and the tamping mechanism repeatedly pushes the filling materials backwards to compact the filling materials. Because the tamping mechanism needs to push back and forth for multiple times to tamp and push up the filling material, the filling efficiency is low so as to fill the fixed production, and the coal mining yield is influenced. The annual output of a conventional waste filling working face is 50-60 ten thousand tons per year, for modern large mines, the annual output of waste reaches 200 ten thousand tons per year, the conventional waste filling method is difficult to meet the requirement, and a hydraulic support and a filling method capable of quickly and efficiently filling waste are required to be developed.
Disclosure of Invention
The invention aims to improve the gangue filling efficiency and the annual gangue filling amount without influencing the recovery speed, and provides a fully-mechanized gangue throwing filling hydraulic support and a filling method thereof.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the fully-mechanized coal mining waste rock throwing filling hydraulic support comprises a waste rock filling hydraulic support without a tamping mechanism and a waste rock throwing belt mechanism connected with the rear part of the waste rock filling hydraulic support, so that the waste rock is thrown instead of tamping; the gangue filling hydraulic support without the tamping mechanism comprises a front top beam, a rear tail beam, a base, four stand columns and four connecting rods, wherein the four stand columns and the four connecting rods are connected between the front top beam, the rear tail beam and the base;
the waste rock belt throwing mechanism comprises a rear seat, a vertical lifting oil cylinder, a belt conveyor, a horizontal pulling oil cylinder and a rear baffle, wherein the inclination angle of the belt conveyor is 10-45 degrees, the rear seat is connected with the belt conveyor through the vertical lifting oil cylinder, the rear part of the rear seat is connected with the rear baffle, and the bottom of the rear seat is provided with the horizontal pulling oil cylinder which is connected with a waste rock filling hydraulic support without a tamping mechanism.
The belt conveyor is further improved in that the belt conveyor comprises a rack, a driving roller, a driven roller, carrier rollers, a conveying belt and side baffles, the driving roller and the driven roller are arranged at the front end and the rear end of the rack respectively, the conveying belt winds the driving roller and the driven roller to realize butt joint of the two ends of the conveying belt, the carrier rollers are arranged at the upper part of the rack to support the conveying belt, and the side baffles are arranged at the periphery of the upper part of the rack to prevent gangue side leakage.
The invention is further improved in that the drive roller is a motorized roller or a hydraulic roller.
The invention is further improved in that the upper surface of the conveying belt is provided with transversely arranged strip-shaped bulges at intervals so as to increase the frictional resistance of throwing waste rocks.
The filling method of the fully mechanized coal mining gangue dumping filling hydraulic support comprises the following steps:
the first step is as follows: a plurality of fully mechanized coal mining throwing and filling hydraulic supports, a coal mining scraper conveyor and a coal mining machine are arranged on a coal face, a coal discharging belt and a waste rock feeding belt are respectively arranged on two gate roads of the face, the waste rock feeding belt is lapped with a waste rock transfer conveyor, and the waste rock transfer conveyor is lapped and then is provided with a porous bottom discharge type scraper conveyor;
the second step is that: starting a first coal cutting knife of a first filling cycle, simultaneously starting ground feeding equipment, an underground gangue feeding belt, a gangue reversed loader, a rear porous bottom-dump scraper conveyor and a coal discharging belt, and synchronously operating coal cutting and gangue conveying;
the third step: when coal cutting and waste rock conveying are carried out, starting from the tail, opening a waste rock leakage hole of a rear-mounted multi-hole bottom-dump scraper conveyor of the 1 st filling hydraulic support and starting a rear-mounted belt conveyor of the rear-mounted multi-hole bottom-dump scraper conveyor, wherein the waste rock falls onto the belt conveyor from the waste rock leakage hole, the belt conveyor rotates at a high speed to throw the waste rock into a goaf until the waste rock in the goaf behind the 1 st filling hydraulic support is filled to meet the roof or reaches a required height, and then closing the waste rock leakage hole of the 1 st filling hydraulic support and the belt conveyor;
the fourth step: opening a gangue leakage hole of a rear-mounted multi-hole bottom-discharging type scraper conveyor of the 2 nd filling hydraulic support and starting a rear belt conveyor of the rear-mounted multi-hole bottom-discharging type scraper conveyor, wherein gangue falls into the belt conveyor from the gangue leakage hole, the belt conveyor rotates at a high speed to throw the gangue into a goaf until the gangue filling of the goaf behind the 2 nd filling hydraulic support is connected with the top or reaches a required height, and closing the gangue leakage hole of the 2 nd filling hydraulic support and the belt conveyor;
the fifth step: according to the action of the fourth step, sequentially carrying out the third rack, the fourth rack, the fifth rack, the sixth rack and the seventh rack from 3 rd rack to 4 th rack, and … till the gangue leakage and the gangue throwing of the last rack are carried out, and realizing the gangue filling of a goaf in the 1 st cutting coal rear inclination range of the first filling cycle of the coal face section by section;
and a sixth step: continuing to cut coal forwards, and gradually realizing filling within the coal face trend ranges of the 2 nd cutter, the 3 rd cutter, … th cutter and the Nth cutter according to the sequence of the third step, the fourth step and the fifth step;
the seventh step: after the first filling cycle is finished, closing the ground feeding equipment, the underground gangue feeding belt, the gangue reversed loader, the rear porous bottom-discharge scraper conveyor and the coal discharging belt;
eighth step: and sequentially realizing a second filling cycle, a third filling cycle and a final filling cycle according to the methods of the second step, the third step, the fourth step, the fifth step, the sixth step and the seventh step, and realizing filling in the whole trend range of the coal face.
The invention has at least the following beneficial technical effects:
the filling height of the waste rock is large and can exceed the mining height, while the filling height of the waste rock filling hydraulic support with the tamping mechanism is difficult to exceed the mining height, when the inclination angle of the belt conveyor is 45 DEG and the belt speed is 10m/s, the waste rock throwing height can reach 2.5m, namely the waste rock throwing filling height can exceed the mining height by 1.0-2.0 m, and the method is more suitable for the condition that the roof plate condition is poor; the filling distance is long, the original position can be repeatedly filled for many times, when the inclination angle of the belt conveyor is 45 degrees and the belt speed is 10m/s, the horizontal distance of throwing the waste rock reaches 10m, and the missed top position can be repeatedly filled; the former two increase the roof-contacting effect and the filling rate; the filling efficiency is high, the belt width of the belt conveyor is greater than that of a chute gangue conveying belt, the belt speed is greater than 1 time of the belt width, the filling amount is large, coal mining is not needed to wait for filling, and the filling is faster than the coal mining; the strip filling can be carried out in a local trend, and the width of a gangue filling belt is convenient to control; the structure is simple and reliable.
The invention integrates two technologies of traditional fully-mechanized coal mining gangue tamping filling and roadway type gangue throwing filling, realizes high-speed, high-efficiency and long-distance gangue throwing filling of a fully-mechanized coal mining working face goaf, improves the filling efficiency and the filling rate, does not need to wait for filling during coal mining, has higher filling speed than coal mining, and can be widely applied to the fields of coal mines, metallurgical mines, national defense engineering and the like.
Drawings
FIG. 1 is a schematic structural diagram of a fully mechanized mining gangue dumping filling hydraulic support.
FIG. 2 is a schematic diagram of the position of the fully mechanized gangue dumping and filling hydraulic support on a coal face.
Description of reference numerals:
1-a front top beam; 2-rear tail beam; 3-a base; 4-upright post; 5-four connecting rods; 6-porous bottom-dump scraper conveyor; 7-a rear seat; 8-a vertical lift cylinder; 9-belt conveyor; 10-a horizontal pulling oil cylinder, 11-a rear baffle, 12-a rack, 13-a driving roller, 14-a driven roller, 15-a carrier roller, 16-a conveying belt, 17-a side baffle, 18-a fully-mechanized coal mining throwing and waste filling hydraulic support, 19-a coal discharging belt, 20-a waste feeding belt and 21-a waste transfer conveyor.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1 to 2, the fully mechanized coal mining gangue-throwing filling hydraulic support 18 provided by the invention is composed of a gangue filling hydraulic support without a tamping mechanism and a gangue-throwing belt mechanism connected with the rear part of the gangue filling hydraulic support, so that gangue is thrown instead of tamping; wherein,
the waste filling hydraulic support without the tamping mechanism consists of a front top beam 1, a rear tail beam 2, a base 3, four upright posts 4 and four connecting rods 5 which are connected between the front top beam 1, the rear tail beam 2 and the base 3, and a porous bottom-dump type waste filling scraper conveyor 6 hung on the rear tail beam 2, wherein the front top beam 1 is hinged with the rear tail beam 2;
the waste rock belt throwing mechanism consists of a rear seat 7, a vertical lifting oil cylinder 8, a belt conveyor 9, a horizontal pulling oil cylinder 10 and a rear baffle 11, the inclination angle of the belt conveyor 9 is 10-45 degrees, the rear seat 7 is connected with the belt conveyor 9 through the vertical lifting oil cylinder 10, the rear baffle 11 is connected behind the rear seat 7, and the horizontal pulling oil cylinder 10 is arranged at the bottom of the rear seat 7 and is connected with a waste rock filling hydraulic support without a tamping mechanism;
the belt conveyor 9 is composed of a frame 12, a driving roller 13, a driven roller 14, a carrier roller 15, a conveying belt 16 and a side baffle 17, the driving roller 13 and the driven roller 14 are respectively arranged at the front end and the rear end of the frame 12, the conveying belt 16 is in butt joint with the two ends of the conveying belt 14 around the driving roller 13 and the driven roller 14, the carrier roller 15 is arranged on the upper portion of the frame 12, the carrier roller 15 supports the conveying belt 16, and the side baffle 17 is arranged on the periphery of the upper portion of the frame 12 to prevent gangue.
The drive roller 13 is a hydraulic roller.
The upper surface of the conveying belt 16 is provided with strip-shaped bulges which are transversely arranged at intervals, so that the frictional resistance of throwing waste rocks is increased.
The invention discloses a filling method of a fully-mechanized mining gangue-throwing filling hydraulic support, which comprises the following steps:
the first step is as follows: the coal face is provided with 50 fully mechanized coal mining throwing and waste rock filling hydraulic supports 18, a coal mining scraper conveyor, a coal mining machine and a crusher, two crossroads of the face are respectively provided with a coal belt 19 and a waste rock feeding belt 20, the waste rock feeding belt is lapped with a waste rock transfer conveyor 21, and the waste rock transfer conveyor 21 is lapped and then is provided with a porous bottom-discharge scraper conveyor 9;
the second step is that: starting a first coal cutting knife of a first filling cycle, and simultaneously starting ground feeding equipment, an underground gangue feeding belt 20, a gangue reversed loader 21, a rear gangue filling scraper conveyor 6 and a coal discharging belt 19, so that the coal cutting and gangue conveying are synchronously operated;
the third step: when coal cutting and waste rock conveying are carried out, starting from the tail, opening a waste rock leakage hole of a rear multi-hole bottom-discharging type scraper conveyor 6 of the 1 st filling hydraulic support and starting a rear belt conveyor 9 of the rear multi-hole bottom-discharging type scraper conveyor, wherein the waste rock falls onto the belt conveyor 9 from the waste rock leakage hole, and the conveying belt 16 rotates at a high speed to throw the waste rock into a goaf until the waste rock filling of the goaf behind the 1 st filling hydraulic support is connected to the roof or reaches the required height, and then closing the waste rock leakage hole of the 1 st filling hydraulic support and the belt conveyor 9;
the fourth step: opening a gangue leakage hole of a rear-mounted multi-hole bottom-discharging type scraper conveyor 6 of the 2 nd filling hydraulic support and starting a rear-mounted belt conveyor 9, enabling gangue to fall onto the belt conveyor 9 from the gangue leakage hole, and throwing the gangue into a goaf by rotating a conveying belt 16 at a high speed until the gangue in the goaf behind the 2 nd filling hydraulic support is filled to be connected to the top or reaches a required height, and closing the gangue leakage hole of the 2 nd filling hydraulic support and the belt conveyor 9;
the fifth step: according to the action of the fourth step, sequentially carrying out the third rack, the fourth rack, the fifth rack, the sixth rack and the seventh rack from 3 rd rack to 4 th rack, and … till the gangue leakage and the gangue throwing of the last rack are carried out, and realizing the gangue filling of a goaf in the 1 st cutting coal rear inclination range of the first filling cycle of the coal face section by section;
and a sixth step: continuing to cut coal forwards, and gradually realizing filling within the coal face trend ranges of the 2 nd cutter, the 3 rd cutter, … th cutter and the 10 th cutter according to the sequence of the third step, the fourth step and the fifth step;
the seventh step: after the first filling cycle is finished, closing the ground feeding equipment, the underground gangue feeding belt, the gangue reversed loader, the postposition gangue filling scraper conveyor and the coal discharging belt;
eighth step: and sequentially realizing a second filling cycle, a third filling cycle and a final filling cycle according to the methods of the second step, the third step, the fourth step, the fifth step, the sixth step and the seventh step, and realizing filling in the whole trend range of the coal face.
The invention realizes the high-speed, high-efficiency and long-distance gangue dumping filling of the fully mechanized coal mining face goaf, improves the filling efficiency and the filling rate, does not need to wait for filling in coal mining, and has higher filling speed than coal mining speed.
Claims (5)
1. The fully-mechanized mining waste rock throwing filling hydraulic support is characterized by comprising a waste rock filling hydraulic support without a tamping mechanism and a waste rock throwing belt mechanism connected with the rear part of the waste rock filling hydraulic support, so that throwing replacement of tamping for waste rock is realized; wherein,
the gangue filling hydraulic support without the tamping mechanism comprises a front top beam (1), a rear tail beam (2), a base (3), four stand columns (4) and four connecting rods (5) which are connected between the front top beam (1), the rear tail beam (2) and the base (3), and a porous bottom-dump scraper conveyor (6) hung on the rear tail beam (2), wherein the front top beam (1) is hinged with the rear tail beam (2);
the waste rock belt throwing mechanism comprises a rear seat (7), a vertical lifting oil cylinder (8), a belt conveyor (9), a horizontal pulling oil cylinder (10) and a rear baffle (11), the inclination angle of the belt conveyor (9) is 10-45 degrees, the rear seat (7) is connected with the belt conveyor (9) through the vertical lifting oil cylinder (10), the rear baffle (11) is connected to the rear of the rear seat (7), and the horizontal pulling oil cylinder (10) is arranged at the bottom of the rear seat (7) and is connected with a waste rock filling hydraulic support without a tamping mechanism.
2. The fully-mechanized mining gangue-throwing filling hydraulic support according to claim 1, wherein the belt conveyor (9) comprises a frame (12), a driving roller (13), a driven roller (14), a carrier roller (15), a conveying belt (16) and a side baffle (17), the driving roller (13) and the driven roller (14) are respectively arranged at the front end and the rear end of the frame (12), the conveying belt (16) is butted with the two ends of the conveying belt (14) around the driving roller (13) and the driven roller (14), the carrier roller (15) is arranged on the upper portion of the frame (12), the conveying belt (16) is supported by the carrier roller (15), and the side baffle (17) is arranged on the periphery of the upper portion of the frame (12) to prevent gangue side leakage.
3. The hydraulic support for fully mechanized mining and gangue dumping filling according to claim 2, characterized in that the driving roller (13) is a motorized roller or a hydraulic roller.
4. The hydraulic support for fully mechanized mining and gangue dumping filling according to claim 2, characterized in that the upper surface of the conveyor belt (16) is provided with transversely arranged strip-shaped protrusions at intervals to increase the frictional resistance for gangue dumping.
5. The method for filling the fully mechanized gangue dumping hydraulic support of any one of claims 1 to 4, which is characterized by comprising the following steps:
the first step is as follows: a plurality of fully mechanized coal mining throwing and filling hydraulic supports (18), a coal mining scraper conveyor and a coal mining machine are arranged on a coal face, a coal discharging belt (19) and a waste rock feeding belt (20) are respectively arranged on two crossroads of the face, the waste rock feeding belt (20) is lapped with a waste rock transfer conveyor (21), and a porous bottom-discharge scraper conveyor (6) is arranged after the waste rock transfer conveyor (20) is lapped;
the second step is that: starting a first coal cutting knife of a first filling cycle, simultaneously starting ground feeding equipment, a downhole gangue feeding belt (20), a gangue reversed loader (21), a rear porous bottom-discharge scraper conveyor (6) and a coal discharging belt (19), and synchronously operating the coal cutting and gangue conveying;
the third step: when coal cutting and waste rock conveying are carried out, starting from the tail, opening a waste rock leakage hole of a rear-mounted porous bottom-discharging type scraper conveyor (6) of the 1 st filling hydraulic support and starting a rear-mounted belt conveyor (9), wherein the waste rock falls onto the belt conveyor (9) from the waste rock leakage hole, and the belt conveyor (16) rotates at a high speed to throw the waste rock into a goaf until the waste rock filling in the goaf behind the 1 st frame is connected to the roof or reaches the required height, and closing the waste rock leakage hole of the 1 st frame and the belt conveyor (9);
the fourth step: opening a gangue leakage hole of a rear-mounted multi-hole bottom-discharging type scraper conveyor (6) of the 2 nd filling hydraulic support and starting a rear-mounted belt conveyor (9), wherein gangue falls onto the belt conveyor (9) from the gangue leakage hole, and the belt conveyor (16) rotates at a high speed to throw the gangue into a goaf until the gangue filling of the goaf behind the 2 nd filling hydraulic support is connected to the roof or reaches a required height, and closing the gangue leakage hole of the 2 nd filling hydraulic support and the belt conveyor (9);
the fifth step: according to the action of the fourth step, sequentially carrying out the third rack, the fourth rack, the fifth rack, the sixth rack and the seventh rack from 3 rd rack to 4 th rack, and … till the gangue leakage and the gangue throwing of the last rack are carried out, and realizing the gangue filling of a goaf in the 1 st cutting coal rear inclination range of the first filling cycle of the coal face section by section;
and a sixth step: continuing to cut coal forwards, and gradually realizing filling within the coal face trend ranges of the 2 nd cutter, the 3 rd cutter, … th cutter and the Nth cutter according to the sequence of the third step, the fourth step and the fifth step;
the seventh step: after the first filling cycle is finished, closing the ground feeding equipment, the underground gangue feeding belt (20), the gangue reversed loader (20), the rear porous bottom-discharge scraper conveyor (6) and the coal discharging belt (19);
eighth step: and sequentially realizing a second filling cycle, a third filling cycle and a final filling cycle according to the methods of the second step, the third step, the fourth step, the fifth step, the sixth step and the seventh step, and realizing filling in the whole trend range of the coal face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010426054.XA CN111485929A (en) | 2020-05-19 | 2020-05-19 | Fully-mechanized coal mining gangue-throwing filling hydraulic support and filling method thereof |
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| CN202010426054.XA CN111485929A (en) | 2020-05-19 | 2020-05-19 | Fully-mechanized coal mining gangue-throwing filling hydraulic support and filling method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586117A (en) * | 2021-08-17 | 2021-11-02 | 西安绿色矿业研究院有限公司 | Throwing waste filling mining hydraulic support |
| CN113586116A (en) * | 2021-08-17 | 2021-11-02 | 西安绿色矿业研究院有限公司 | Coal mine solid filling mining hydraulic support |
| RU210254U1 (en) * | 2021-10-26 | 2022-04-04 | Федеральное государственное бюджетное научное учреждение "Федеральный исследовательский центр угля и углехимии Сибирского отделения Российской академии наук" (ФИЦ УУХ СО РАН) | SECTION OF MEHANIZED SUPPORT FOR LONGHOUSE WITH CONTROLLED COAL OUTLET DEVICE |
| CN114934802A (en) * | 2022-06-15 | 2022-08-23 | 中煤能源研究院有限责任公司 | Double-shield gangue filling hydraulic support |
-
2020
- 2020-05-19 CN CN202010426054.XA patent/CN111485929A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586117A (en) * | 2021-08-17 | 2021-11-02 | 西安绿色矿业研究院有限公司 | Throwing waste filling mining hydraulic support |
| CN113586116A (en) * | 2021-08-17 | 2021-11-02 | 西安绿色矿业研究院有限公司 | Coal mine solid filling mining hydraulic support |
| RU210254U1 (en) * | 2021-10-26 | 2022-04-04 | Федеральное государственное бюджетное научное учреждение "Федеральный исследовательский центр угля и углехимии Сибирского отделения Российской академии наук" (ФИЦ УУХ СО РАН) | SECTION OF MEHANIZED SUPPORT FOR LONGHOUSE WITH CONTROLLED COAL OUTLET DEVICE |
| CN114934802A (en) * | 2022-06-15 | 2022-08-23 | 中煤能源研究院有限责任公司 | Double-shield gangue filling hydraulic support |
| CN114934802B (en) * | 2022-06-15 | 2024-07-30 | 中煤能源研究院有限责任公司 | Double-shield gangue filling hydraulic support |
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