CN110630322A - Thin coal seam coal and gangue separate mining and separate transportation filling mining system and mining method - Google Patents
Thin coal seam coal and gangue separate mining and separate transportation filling mining system and mining method Download PDFInfo
- Publication number
- CN110630322A CN110630322A CN201911030683.4A CN201911030683A CN110630322A CN 110630322 A CN110630322 A CN 110630322A CN 201911030683 A CN201911030683 A CN 201911030683A CN 110630322 A CN110630322 A CN 110630322A
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- Prior art keywords
- coal
- filling
- mining
- gangue
- scraper conveyor
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- 239000003245 coal Substances 0.000 title claims abstract description 144
- 238000005065 mining Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002390 adhesive tape Substances 0.000 claims abstract description 7
- 239000011435 rock Substances 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000010878 waste rock Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F13/002—Crushing devices specifically for conveying in mines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F15/06—Filling-up mechanically
Abstract
The invention discloses a thin coal seam coal and gangue separate mining and separate transporting and filling mining system which comprises a filling support, wherein a filling scraper conveyor is arranged at the rear end of the filling support, a supporting plate capable of extending forwards is arranged below the front end of a top beam of the filling support, a coal mining machine and a working face scraper conveyor are arranged below the filling support, the working face scraper conveyor is in lap joint/connection with a crossheading adhesive tape in a rubber transportation crossheading, and the working face scraper conveyor is also in lap joint/connection with the filling scraper conveyor arranged at the rear end of the filling support. The thin coal seam coal and gangue separate mining and separate transporting and filling mining system realizes the separate mining and separate transporting of coal and gangue, solves the problem of high difficulty in parallel mining and filling operation, and reduces the washing and processing cost of gangue. The invention also relates to a thin coal seam coal and gangue separate mining and separate transportation filling mining method.
Description
Technical Field
The invention belongs to the technical field of coal mine filling mining, and particularly relates to a thin coal seam coal and gangue separate mining and separate transportation filling mining system and a thin coal seam coal and gangue separate mining and separate transportation filling mining method.
Background
The thin coal seam is generally thin, the excavation proportion is large, the excavation rate is high, and a large amount of gangue is generated during mining. The waste rock discharge not only occupies land and pollutes the environment, but also has high discharge cost and does not meet the requirements of green mine construction in the coal industry. At present, the mining yield of the thin coal seam in China is not large in proportion to the national coal yield, the proportion is in a trend of gradually decreasing, and the problem of returning waste rocks to a well filling technology for mining the thin coal seam is not much, so that the achievement of green mining of a mine is particularly important for solving the problem of filling mining of the thin coal seam.
The existing coal mine dry filling mining technology is mainly suitable for medium and thick coal seams, and the filling technology for thin coal mining is more rare. The invention provides a method suitable for mining and filling the coal and gangue in a thin coal seam in a separate mining and separate transportation mode, aiming at solving the problems that the coal seam mined by the thin coal seam has high gangue content, high washing and gangue treatment cost and the like.
Disclosure of Invention
The invention aims to provide a thin coal seam coal and gangue separate mining and separate transporting and filling mining system, which solves the problem of high difficulty in parallel operation of separate mining and separate transporting and mining and filling of the thin coal seam coal and gangue so as to reduce the washing and treatment cost of the gangue.
In order to achieve the purpose, the invention adopts the technical scheme that the thin coal seam coal and gangue separate mining and separate transporting and filling mining system comprises a filling support, wherein a filling scraper conveyor is arranged at the rear end of the filling support, a supporting plate capable of extending forwards is arranged below the front end of a top beam of the filling support, a coal cutter and a working face scraper conveyor are arranged below the filling support, the working face scraper conveyor is lapped with a crossheading adhesive tape in a rubber transportation crossheading, and the working face scraper conveyor is lapped with or connected with the filling scraper conveyor arranged at the rear end of the filling support.
The technical proposal of the invention also has the following characteristics,
the support plate is driven by a drive mechanism.
The coal conveying and crushing device is characterized in that a coal conveying and transferring device and a crusher are lapped/connected below the discharging end of the working face scraper conveyor, the coal conveying and transferring device is lapped/connected with a crossheading adhesive tape in an adhesive conveying crossheading, the crusher is lapped/connected with a filling and transferring device, and the filling and transferring device is lapped/connected with a filling scraper conveyor.
The discharging end of the working face scraper conveyor is provided with a guide groove, and a guide opening of the guide groove points to the coal-carrying transfer conveyor and the crusher respectively.
The driving mechanism is a hydraulic cylinder.
The invention aims to provide a thin coal seam coal and gangue separate mining and separate transportation filling mining method, which solves the problem that the thin coal seam mechanical mining, mechanical filling and mining and filling parallel operation is difficult, so as to reduce the washing and treatment cost of the gangue.
In order to achieve the purpose, the invention adopts the technical scheme that: a thin coal seam coal and gangue separate mining and separate transportation filling mining method is implemented according to the following steps:
step 1, cutting coal by a coal cutter, extending a supporting plate at the front end of a separate mining and transporting hydraulic support immediately along with the coal cut by the coal cutter until the supporting plate is positioned below a top rock stratum of a mined coal bed, and transporting coal-cut coal by the coal cutter out through a working face scraper conveyor and a crossheading adhesive tape until the coal is cut once on a working face;
and 2, cutting a top rock stratum after the coal cutter finishes cutting coal on the working face for one time, simultaneously sequentially withdrawing the supporting plates in front of the coal cutter, transferring the mined gangue to a filling scraper conveyor through the working face scraper conveyor, filling the gangue into a goaf, and finishing cutting the gangue on the working face for one time.
And 3, repeating the step 1 and the step 2 to mine and fill the coal and the roof rock, and finishing the coal mining and transportation of the working face.
In the step 2, the gangue generated by cutting and mining rock strata is firstly crushed by a crusher and then is conveyed to a goaf through a coal filling transfer machine and a filling scraper conveyor in sequence.
The invention has the beneficial effects that: the invention discloses a thin coal seam coal and gangue separate mining and separate transporting filling system and a filling method thereof. Conveying coal to the ground through a mine conveying system, conveying cut waste rocks to a crusher at the end of a working face by using a working face scraper conveyor to crush the waste rocks when cutting rock strata, then transferring the crushed waste rocks to a filling scraper conveyor behind a working face filling support through a transfer conveyor, and filling a goaf by using the filling scraper conveyor; coal (waste rock) mining and filling are carried out in parallel in the working face stoping process; the filling system fully and directly fills the waste rocks on the working face without lifting the shaft, reduces the washing and processing cost of the waste rocks, and realizes the loss-reducing green mining of the coal mine.
Drawings
FIG. 1 is a schematic layout of a working face of a coal and gangue separate mining and transporting filling system of a thin coal seam according to the invention;
FIG. 2 is a filling mining support diagram of the coal and gangue separate mining and separate transportation filling system of the thin coal seam;
FIG. 3 is a schematic layout of a reversed loader of the separate mining and separate transportation and filling system for the coal and gangue in the thin coal seam according to the invention;
the mining machine comprises a coal mining machine 1, a driving mechanism 2, a working face scraper conveyor 3, a filling support 4, a supporting plate 5, a crusher 6, a filling transfer conveyor 7, a filling scraper conveyor 8, a discharge hole 9, a top rock stratum 10, a coal bed 11, a top beam 12, a glue transportation crossheading 13, a coal transportation transfer conveyor 14, a crossheading adhesive tape 15, a working face 16 and a goaf 17.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1 to 3, the thin coal seam coal and gangue separate mining and separate transportation filling mining system comprises a filling support 4, a filling scraper conveyor 8 is arranged at the rear end of the filling support 4, a supporting plate 5 capable of extending forwards is arranged below the front end of a top beam 12 of the filling support 4, a coal mining machine 1 and a working face scraper conveyor 3 are arranged below the filling support 4, the working face scraper conveyor 4 is in lap joint/connection with a crossheading rubber belt 15 in a rubber transportation crossheading 13, and the working face scraper conveyor 4 is also in lap joint/connection with the filling scraper conveyor 8 arranged at the rear end of the filling support 4.
When the coal mining machine cuts coal, the supporting plate 5 extends forwards to be blocked below the top rock layer 10, the cut coal falls onto the working face scraper conveyor 3, and the cut coal is conveyed to the ground through the gate rubber belt 15 under the conveying of the working face scraper conveyor 3. When the coal mining machine cuts the top rock layer 10, the supporting plates 5 on the filling supports 4 are sequentially recovered along with the advancing of the coal mining machine 1, the mined and cut gangue falls onto the working face scraper conveyor 3, is conveyed to the filling scraper conveyor 8 through the working face scraper conveyor 3, and then the goaf is filled through the filling scraper conveyor 8. Thereby realizing the respective mining of the coal seam 11 and the roof rock layer 10, greatly reducing the gangue content of the coal mining, and reducing the coal washing pressure and the washing cost; the thin coal seam 11 is isolated from the roof rock layer 10 by the supporting plate 5, and the roof rock layer 10 is supported, so that normal production of separate mining and separate transportation mining of the working face of the thin coal seam 11 is guaranteed.
As shown in fig. 2, in the thin coal seam coal and gangue separate mining and separate transportation filling mining system of the present invention, the supporting plate 5 is driven by the driving mechanism 2, and the driving mechanism 2 is used for driving the supporting plate 5 to move forward or backward.
As shown in fig. 2, in the thin coal seam coal and gangue separate mining and separate transportation and filling mining system of the invention, a coal carrier 14 and a crusher 6 are lapped/connected below the discharge end of a face scraper conveyor 3, the coal carrier 14 is lapped/connected with a gate belt 15 in a rubber gate 13, the crusher 6 is lapped/connected with a filling carrier 7, and the filling carrier 7 is lapped/connected with a filling scraper conveyor 8.
The cut coal can be conveyed to a gate way rubber belt 15 in a rubber gate way 13 through a coal conveying transfer 14, and the cut gangue enters a crusher 6 to be crushed and can be transferred and conveyed to a filling goaf 17 of a filling scraper conveyor 8 through a filling transfer 7.
In the thin coal seam coal and gangue separate mining and separate transporting and filling mining system of the invention, as shown in fig. 2, the discharge end of the face scraper conveyor 3 is provided with a guide groove, and the guide openings of the guide groove are respectively directed to the coal carrying loader 14 and the crusher 6.
The coal conveying to the coal carrying transfer machine 14 and the gangue conveying to the crusher 6 are realized by controlling the opening and closing of the two guide ports.
As shown in fig. 1, a method for separately mining, separately transporting and filling thin coal seam coal and gangue is performed based on the above system for separately mining, separately transporting and filling thin coal seam coal and gangue, and is specifically implemented according to the following steps:
step 1, cutting coal by a coal mining machine 1, extending a supporting plate 5 at the front end of a filling support 4 out along with the coal cutting of the coal mining machine 1 until the supporting plate is positioned below a top rock stratum 10 of a mined coal bed, and conveying coal-mining carbon mined by the coal mining machine 1 out through a working face scraper conveyor 3 and a crossheading adhesive tape 15 until one-time coal cutting of a working face is finished;
step 2, cutting a top rock stratum 10 after the coal mining machine 1 finishes primary coal cutting on the working face, simultaneously sequentially withdrawing the supporting plates 5 in front of the coal mining machine 1, transferring the mined gangue to a filling scraper conveyor 8 through a working face scraper conveyor 3, and filling the gangue into a goaf 17 until the working face finishes primary gangue cutting;
and 3, repeating the step 1 and the step 2 to mine and fill the coal bed 11 and the roof rock layer 10, and finishing the mining and filling of the coal and gangue separate mining and transportation of the working face.
In the step 2 of the thin coal seam coal and gangue separate mining and separate transporting filling mining method, the gangue generated by cutting and mining rock layers is firstly crushed by the crusher 6 and then is conveyed to a goaf through the filling reversed loader 7 and the filling scraper conveyor 8 in sequence.
Claims (7)
1. The utility model provides a thin coal seam coal gangue divides to adopt and divides fortune filling mining system, its characterized in that, including filling support (4), the rear end of filling support (4) is provided with fills scraper conveyor (8), is provided with backup pad (5) that can stretch out forward below top beam (12) front end of filling support (4), has arranged coal-winning machine (1) and working face scraper conveyor (3) below filling support (4), working face scraper conveyor (4) and rubber transportation crossheading sticky tape (15) overlap joint/be connected in crossheading (13), working face scraper conveyor (4) still with fill scraper conveyor (8) overlap joint/be connected that filling support (4) rear end was arranged.
2. The system for separately mining and separately transporting and filling the thin coal seam gangue as claimed in claim 1, wherein the supporting plate (5) is driven by a driving mechanism (2).
3. The system for separately mining, separately transporting and filling and exploiting the thin coal seam gangue as claimed in claim 1, wherein a coal transporting loader (14) and a crusher (6) are overlapped/connected below a discharge end of the face scraper conveyor (3), the coal transporting loader (14) is overlapped/connected with a gate rubber belt (15) in a rubber gate chute (13), the crusher (6) is overlapped/connected with a filling loader (7), and the filling loader (7) is overlapped/connected with a filling scraper conveyor (8).
4. The system for separately mining, separately transporting and filling and mining the coal and gangue as claimed in claim 1, wherein the discharge end of the face scraper conveyor (3) is provided with a guide groove, and guide openings of the guide groove are respectively directed to the coal carrying loader (14) and the crusher (6).
5. The system for separately mining, separately transporting and filling and mining the coal and gangue as claimed in claim 2, wherein the driving mechanism (2) is a hydraulic cylinder.
6. A thin coal seam coal and gangue separate mining and separate transportation filling mining method is carried out based on the thin coal seam coal and gangue separate mining and separate transportation filling mining system of any one of claims 1-5, and is characterized by being implemented according to the following steps:
step 1, cutting coal by a coal cutter (1), extending a supporting plate 5 at the front end of a filling support 4 out along with the coal cutter (1) until the supporting plate is positioned below a top rock stratum (10) of a mined coal bed, and conveying coal-mined carbon by the coal cutter (1) out through a working face scraper conveyor (3) and a crossheading adhesive tape (15) until one-time coal cutting of the working face is finished;
step 2, cutting a top rock stratum (10) after the coal mining machine (1) finishes primary coal cutting of the working face, simultaneously sequentially withdrawing the supporting plate (5) in front of the coal mining machine (1), transferring the mined gangue to a filling scraper conveyor (8) through the working face scraper conveyor (3), and filling the gangue into a goaf (17) until the working face finishes primary gangue cutting;
and 3, repeating the step 1 and the step 2 to mine and fill the coal seam (11) and the roof rock stratum (10), and finishing the mining and filling of the coal and gangue separate mining and transportation of the working face.
7. The method for mining and filling the coal and gangue separately from the thin coal seam according to claim 6, wherein in the step 2, the gangue produced in the cutting and mining rock stratum is firstly crushed by a crusher (6) and then is conveyed to the goaf by a filling transfer conveyor (7) and a filling scraper conveyor (8) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030683.4A CN110630322A (en) | 2019-10-28 | 2019-10-28 | Thin coal seam coal and gangue separate mining and separate transportation filling mining system and mining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030683.4A CN110630322A (en) | 2019-10-28 | 2019-10-28 | Thin coal seam coal and gangue separate mining and separate transportation filling mining system and mining method |
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| Publication Number | Publication Date |
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| CN110630322A true CN110630322A (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911030683.4A Pending CN110630322A (en) | 2019-10-28 | 2019-10-28 | Thin coal seam coal and gangue separate mining and separate transportation filling mining system and mining method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233359A (en) * | 2022-01-24 | 2022-03-25 | 中煤能源研究院有限责任公司 | Caving type gangue filling hydraulic support and filling method |
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| CN104653182A (en) * | 2014-11-07 | 2015-05-27 | 山东科技大学 | Coal mining method for coal and gangue separate recovery of coal seam with dirt band |
| CN108915680A (en) * | 2018-08-27 | 2018-11-30 | 山东里能里彦矿业有限公司 | Girdle bastard coal sorts fully mechanized mining and fully mechanized mining system |
| CN210829387U (en) * | 2019-10-28 | 2020-06-23 | 陕西开拓建筑科技有限公司 | Thin coal seam coal and gangue separate mining and separate transporting filling mining system |
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2019
- 2019-10-28 CN CN201911030683.4A patent/CN110630322A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102305069A (en) * | 2011-05-17 | 2012-01-04 | 山东新煤机械有限公司 | Technology and equipment for separating coal and gangue and refilling gangue |
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| CN210829387U (en) * | 2019-10-28 | 2020-06-23 | 陕西开拓建筑科技有限公司 | Thin coal seam coal and gangue separate mining and separate transporting filling mining system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233359A (en) * | 2022-01-24 | 2022-03-25 | 中煤能源研究院有限责任公司 | Caving type gangue filling hydraulic support and filling method |
| CN114233359B (en) * | 2022-01-24 | 2024-03-01 | 中煤能源研究院有限责任公司 | Roof-caving type gangue filling hydraulic support and filling method |
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