CN111255512A - Original gangue solid filling method - Google Patents
Original gangue solid filling method Download PDFInfo
- Publication number
- CN111255512A CN111255512A CN202010142213.3A CN202010142213A CN111255512A CN 111255512 A CN111255512 A CN 111255512A CN 202010142213 A CN202010142213 A CN 202010142213A CN 111255512 A CN111255512 A CN 111255512A
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- filling
- tamping
- plate
- feeding
- conveyor
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- 239000007787 solid Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000005056 compaction Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract 2
- 239000003245 coal Substances 0.000 description 7
- 238000005065 mining Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/02—Supporting means, e.g. shuttering, for filling-up materials
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a method for filling original gangue solids, which comprises the steps of feeding materials by adopting a belt conveyor matched with a multi-hole bottom-discharge conveyor and tamping a filling body by utilizing a tamping device of a filling support. The method comprises the following specific steps: feeding materials to each filling station from inside to outside in sequence in a filling area, wherein the single feeding amount does not exceed 1/3 of the total filling height; secondly, feeding and tamping are alternately carried out, and feeding is carried out on the next filling station after the previous filling station is tamped; thirdly, completing layer-by-layer filling from bottom to top according to the steps 1 and 2; fourthly, tamping the whole filling body. The invention greatly improves the filling quality by combining the circular feeding and the circular tamping. The effect of no sedimentation and little sedimentation in the current year is achieved.
Description
Technical Field
The invention relates to a method for filling original gangue solids.
Background
The original gangue solid filling is mainly a top plate control filling coal mining technology which is used for crushing coal gangue above and below a well into particles meeting the filling requirement, conveying the particles to the underground and throwing the particles into a goaf by a gangue throwing machine so as to support coal body surrounding rocks and reduce or even prevent the collapse and deformation of the surrounding rocks. The original gangue solid filling not only has the advantages of relatively simple system, high mechanization degree, low initial investment of a filling system and the like, but also does not use cementing materials, has relatively low cost per ton of coal filling, and is widely adopted. However, as the original gangue solid filling utilizes gravity to throw filling materials into the goaf, the compactness of a filling body is reduced, the compression rate of the filling body is higher, and the control effect on rock stratum movement and ground surface subsidence is not good. The common tamping method has the defects of simple and rough structure, and particularly has poor tamping effect on the bottom layer of a filling body and sometimes occurs on ground settlement.
Disclosure of Invention
The invention aims to provide a gangue solid filling method, which improves the filling quality.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a raw refuse solid filling method comprises the following steps: the filling support comprises a belt conveyor, a porous bottom-dump conveyor and a filling support with a tamping device, wherein the belt conveyor is matched with the porous bottom-dump conveyor for feeding, the porous bottom-dump conveyor is suspended at the tail part of a rear top beam of the filling support, the porous bottom-dump conveyor is provided with a feeding leakage hole at the rear part of each filling support, a filling station is arranged below each feeding leakage hole, the filling support comprises a support base 1, the support base supports a front top beam 3 and a rear top beam 5 at the lower end surface of a top plate of a working area through stand columns 2 and 10, the tamping device is arranged at the tail part of the filling support and tamps filled original gangue solids, and the filling method comprises the specific steps of:
feeding materials to each filling station from inside to outside in sequence in a filling area, wherein the single feeding amount does not exceed 1/3 of the total filling height;
secondly, tamping the filled original gangue solids, alternately feeding and tamping, and feeding the next filling station after tamping of the previous filling station is finished;
thirdly, completing layer-by-layer filling from bottom to top according to the steps 1 and 2;
fourthly, tamping the whole filling body.
Further illustratively, the tamping apparatus includes: the tamping plate 9 is hinged to the filling support base 1, the tamping hydraulic jack 8 is located in the tamping plate 9, the tamping push plate 7 is arranged at the top end of the tamping hydraulic jack 8, the tamping hydraulic jack 8 extends to push the tamping push plate 7 to push the filling materials backwards, the tamping hydraulic jack 4 is connected with a top beam of the filling support and an upper plane of the tamping plate 9, the tamping hydraulic jack 4 is used for driving the tamping plate 9 to uninterruptedly retract and rotate downwards to compact the filled original gangue solids, and when the filled original gangue solids are higher than the tamping plate, the tamping push plate 7 is used for pushing the original gangue solids upwards.
The scheme is further explained in that the multi-hole bottom-dump conveyor is suspended at the tail part of the rear top beam of the filling support through a telescopic mechanism 6, the telescopic mechanism comprises a hanger plate 601, the hanger plate 601 is connected with the tail end of the rear top beam plate 5 through a guide wheel 602 and a guide rail 603, a hydraulic telescopic arm 604 is arranged at the tail end of the rear top beam plate 5, the hydraulic telescopic arm 604 is connected with the hanger plate 601, a lifting lug is arranged on the lower end face of the hanger plate 601 and connected with the multi-hole bottom-dump conveyor 605, the multi-hole bottom-dump conveyor 605 is connected with a belt conveyor, when the original gangue solid is filled, the hydraulic telescopic arm 604 extends out to drive the multi-hole bottom-dump conveyor 605 to move backwards to feed the filling station, and when the original gangue solid is tamped, the hydraulic telescopic arm 604 retracts to drive the multi-hole bottom-dump conveyor 605 to move forwards, so.
The scheme is further explained that the hydraulic telescopic arm 604 pushes the hanger plate 601 out of the tail end of the rear top beam plate 5 by at least 0.5 m.
Further explaining the scheme, the inclined tilted baffle at the tail end of the bracket base 1 and the horizontal included angle of the bracket base 1 are 60-70 degrees.
The scheme is further explained that when the compaction hydraulic jack 4 is retracted, the compaction plate 9 and the inclined tilting baffle at the tail end of the support base 1 are positioned on the same plane.
The invention has the beneficial effect that the filling quality is greatly improved by combining the circular feeding and the circular tamping.
The invention is described in detail below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic view of the filling stand according to the present invention;
fig. 2 is a schematic structural view of a telescopic mechanism of the filling support of the invention.
Detailed Description
A raw refuse solid filling method relates to equipment comprising: a belt conveyor, a multi-hole bottom-discharge conveyor and a filling support with a tamping device.
The filling support with the tamping device is shown in figure 1 and comprises a support base 1, wherein a front top beam 3 and a rear top beam 5 are supported on the lower end face of a top plate of a working area by the support base through upright columns 2 and 10, and the tamping device is arranged at the tail of the filling support and used for tamping filled original gangue solids. The tamping device includes: a compacting plate 9, a compacting hydraulic jack 4, a tamping hydraulic jack 8 and a tamping push plate 7. The tail end of the bracket base 1 is provided with an oblique tilting baffle, the height of the oblique tilting baffle is 1/5-1/4 of the height of the filling bracket, the horizontal included angle between the oblique tilting baffle and the bracket base 1 is 60-70 degrees, and the compacting plate 9 is hinged with a hinge seat on the top end of the oblique tilting baffle of the bracket base 1. The tamping hydraulic jack 8 is positioned in the compacting plate 9, the tamping push plate 7 is arranged at the top end of the tamping hydraulic jack 8, and the tamping hydraulic jack 8 extends to push the tamping push plate 7 to push the filler backwards. The compaction hydraulic jack 4 is connected with the top beam of the filling support and the upper plane of the compaction plate 9, during feeding, a piston rod of the compaction hydraulic jack 4 contracts to drive the compaction plate 9 to deflect upwards, and at the moment, the compaction plate 9 and the oblique upwarp baffle at the tail end of the support base 1 are positioned on the same plane to prevent original gangue solids from diffusing to the front part of the filling support. When the filling material is tamped, the tamping hydraulic jack 4 drives the tamping plate 9 to continuously retract and rotate downwards to compact the filled original gangue solid, and when the filled original gangue solid is higher than the tamping plate 9, the tamping push plate 7 is used for pushing the original gangue solid upwards. The multi-hole bottom-dump conveyor is suspended at the tail part of the rear top beam 5 of the filling support through a telescopic mechanism 6, the rear part of each filling support is provided with a feeding leak hole, and a filling station is arranged below each feeding leak hole.
The telescopic mechanism 6, as shown in fig. 2, comprises a hanger plate 601, the hanger plate 601 is connected with the tail end of the rear top beam plate 5 through a guide wheel 602 and a guide rail 603, a hydraulic telescopic arm 604 is arranged at the tail end of the rear top beam plate 5, the hydraulic telescopic arm 604 is connected with the hanger plate 601, a lifting lug is arranged on the lower end face of the hanger plate 601 and is connected with a multi-hole bottom-dump conveyor 605, the multi-hole bottom-dump conveyor 605 is connected with a belt conveyor, when original gangue solid is filled, the hydraulic telescopic arm 604 pushes the hanger plate 601 out of the tail end of the rear top beam plate 5 by at least 0.5 m, the hanger plate 601 drives the multi-hole bottom-dump conveyor 605 to move backwards to feed a filling station, and when the original gangue solid is tamped, the hydraulic telescopic arm 604 retracts to drive the multi-hole bottom-dump conveyor 605 to move forwards, so that.
A raw refuse solid filling method comprises the following specific steps:
feeding materials to each filling station from inside to outside in sequence in a filling area, wherein the single feeding amount does not exceed 1/3 of the total filling height;
secondly, tamping the filled original gangue solids, alternately feeding and tamping, and feeding the next filling station after tamping of the previous filling station is finished;
thirdly, completing layer-by-layer filling from bottom to top according to the steps 1 and 2;
fourthly, tamping the whole filling body.
The invention fully considers the problem of insufficient tamping of the bottom of the filling body, adopts a mode of feeding the filling stations one by one and tamping one by one, is beneficial to the diffusion of the filling body in the tamping process and improves the compactness of the filling body. In a primary gangue solid filling and mining project of a 1102 working face of a disc area constructed in the south coal industry of the pavilion in 2019, a primary gangue solid filling and mining mode is adopted to mine coal resources, and the maximum amount of digested gangue reaches 2400 tons every day. By 18 days after 6 months, the underground working face is pushed by 88.9m in an accumulated mode, coal mining is 9.1 ten thousand tons, the working face fullness is 80%, and sinking data are not observed on the earth surface at present.
Claims (6)
1. A raw refuse solid filling method comprises the following steps: the filling support comprises a belt conveyor, a porous bottom-dump conveyor and a filling support with a tamping device, wherein the belt conveyor is matched with the porous bottom-dump conveyor for feeding, the porous bottom-dump conveyor is suspended at the tail part of a rear top beam of the filling support, the porous bottom-dump conveyor is provided with feeding leakage holes at the rear part of each filling support, a filling station is arranged below each feeding leakage hole, the filling support comprises a support base (1), the support base supports a front top beam (3) and a rear top beam (5) at the lower end surface of a top plate of a working area through stand columns (2) and (10), and the tamping device is arranged at the tail part of the filling support for tamping filled original gangue solids, and is characterized in that the filling method comprises the following specific steps:
feeding materials to each filling station from inside to outside in sequence in a filling area, wherein the single feeding amount does not exceed 1/3 of the total filling height;
secondly, tamping the filled original gangue solids, alternately feeding and tamping, and feeding the next filling station after tamping of the previous filling station is finished;
thirdly, completing layer-by-layer filling from bottom to top according to the steps 1 and 2;
fourthly, tamping the whole filling body.
2. The method of claim 1, wherein the tamping device comprises: the tamping plate (9), the compaction hydraulic jack (4), the tamping hydraulic jack (8) and the tamping push plate (7), the tamping plate (9) is hinged to the filling support base (1), the tamping hydraulic jack (8) is located in the compacting plate (9), the tamping push plate (7) is arranged at the top end of the tamping hydraulic jack (8), the tamping hydraulic jack (8) extends to push the tamping push plate (7) to push the filling materials backwards, the compaction hydraulic jack (4) is connected with the filling support top beam and the upper plane of the compacting plate (9), the compaction hydraulic jack (4) is used for driving the compacting plate (9) to retract uninterruptedly and rotate downwards to compact the original gangue solids filled in the downward motion, and when the original gangue solids filled are higher than the compacting plate, the original gangue solids are pushed upwards by the tamping push plate (7).
3. The method according to claim 1, characterized in that the multihole bottom-discharging conveyor is suspended at the tail part of the rear top beam of the filling support through a telescopic mechanism (6) which comprises a hanger plate (601), the hanger plate (601) is connected with the tail end of the rear top beam plate (5) through a guide wheel (602) and a guide rail (603), a hydraulic telescopic arm (604) is arranged at the tail end of the rear top beam plate (5), the hydraulic telescopic arm (604) is connected with the hanger plate (601), a lifting lug is arranged on the lower end face of the hanger plate (601), the lifting lug is connected with the multihole bottom-discharging conveyor (605), the multihole bottom-discharging conveyor (605) is connected with a belt conveyor, when the original gangue solid is filled, the hydraulic telescopic arm (604) extends to drive the multihole bottom-discharging conveyor (605) to move backwards to feed the filling station, when the original gangue solid is tamped, the hydraulic telescopic arm (604) retracts to drive the multihole bottom-discharging conveyor (605) to move forwards, the original gangue solid completely fills the space of the filling station.
4. A method according to claim 3, characterized in that the hydraulic telescopic arm (604) pushes the hanger plate (601) out of the rear end of the rear header panel (5) by at least 0.5 m.
5. The method according to claim 2, wherein the inclined raised baffle at the tail end of the bracket base (1) forms an angle of 60-70 ° with the horizontal angle of the bracket base (1).
6. The method according to claim 2, characterized in that when the compaction hydraulic jack (4) is retracted, the compaction plate (9) and the oblique tilting baffle at the tail end of the bracket base (1) are in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142213.3A CN111255512A (en) | 2020-03-04 | 2020-03-04 | Original gangue solid filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142213.3A CN111255512A (en) | 2020-03-04 | 2020-03-04 | Original gangue solid filling method |
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| Publication Number | Publication Date |
|---|---|
| CN111255512A true CN111255512A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010142213.3A Pending CN111255512A (en) | 2020-03-04 | 2020-03-04 | Original gangue solid filling method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460939U (en) * | 2009-07-31 | 2010-05-12 | 郑州四维机电设备制造有限公司 | Filling and timbering hydraulic support with a tamping mechanism |
| CN102979545A (en) * | 2012-12-10 | 2013-03-20 | 中国矿业大学 | Large-mining-height front and rear top beam coaxial articulated fill coal mining hydraulic bracket |
| CN105178998A (en) * | 2015-09-18 | 2015-12-23 | 冀中能源股份有限公司邢东矿 | Hydraulic support for waste rock filling |
| CN205638519U (en) * | 2016-05-06 | 2016-10-12 | 郑州四维机电装备制造有限公司 | Girdle solid filling support |
| CN208456650U (en) * | 2018-05-07 | 2019-02-01 | 郑州合新科技有限公司 | Double compactings fill hydraulic support |
-
2020
- 2020-03-04 CN CN202010142213.3A patent/CN111255512A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460939U (en) * | 2009-07-31 | 2010-05-12 | 郑州四维机电设备制造有限公司 | Filling and timbering hydraulic support with a tamping mechanism |
| CN102979545A (en) * | 2012-12-10 | 2013-03-20 | 中国矿业大学 | Large-mining-height front and rear top beam coaxial articulated fill coal mining hydraulic bracket |
| CN105178998A (en) * | 2015-09-18 | 2015-12-23 | 冀中能源股份有限公司邢东矿 | Hydraulic support for waste rock filling |
| CN205638519U (en) * | 2016-05-06 | 2016-10-12 | 郑州四维机电装备制造有限公司 | Girdle solid filling support |
| CN208456650U (en) * | 2018-05-07 | 2019-02-01 | 郑州合新科技有限公司 | Double compactings fill hydraulic support |
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Application publication date: 20200609 |