CN109630121B - Steering, developing and transporting system for strip mining area - Google Patents
Steering, developing and transporting system for strip mining area Download PDFInfo
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- CN109630121B CN109630121B CN201910089061.2A CN201910089061A CN109630121B CN 109630121 B CN109630121 B CN 109630121B CN 201910089061 A CN201910089061 A CN 201910089061A CN 109630121 B CN109630121 B CN 109630121B
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- 238000005065 mining Methods 0.000 title claims abstract description 76
- 239000003245 coal Substances 0.000 claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 241000272814 Anser sp. Species 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims description 19
- 239000011435 rock Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 230000032258 transport Effects 0.000 claims description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/26—Methods of surface mining; Layouts therefor
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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
- E21C41/26—Methods of surface mining; Layouts therefor
- E21C41/28—Methods of surface mining; Layouts therefor for brown or hard coal
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a turning exploitation transportation system for a mining area of a strip mine. The scheme of the invention is derived on the basis of the existing open mine transportation theory and aging slope theory, and the wild goose matrix type exploitation transportation system is arranged, so that the secondary stripping during the turning of the mining area can be reduced, the end slope transportation system is simplified, the inner discharge space is increased, and the transportation cost is reduced. The invention has the advantages of strong applicability, low cost, good economic effect and higher popularization value. The system is suitable for open pit coal mines and other open pit mines.
Description
Technical Field
The invention relates to a strip mine exploitation transportation system, in particular to a turning exploitation transportation system for a strip mine mining area.
Background
Surface mining is an important branch of the mining industry, undertaking increasingly important coal mining tasks. The thick and many deposits of overburden, coal seam are usually mined in the open pit, limited by factors such as yield scale, mining intensity, equipment specification and economic benefit, and are usually mined in a subarea mode. The surface mine of the subarea mining can not avoid the switching of the mining area. At present, in China, more than 40 million-ton open pit coal mines are built and put into production, 5 produced 3000 million-ton open pit coal mines are mined in a subarea mode, turning is needed for 2-4 times, and almost all the seats face the problems of insufficient inner discharge space, transformation of a transportation system, unbalanced mining and stripping projects, increased transport distance, reduced equipment efficiency and the like during turning.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an exploitation transportation system which increases the inner row space, recovers the end slope pressing coal, reduces the lifting height, shortens the transportation distance of an automobile and improves the overall benefit, so as to solve the problems of insufficient inner row space, increased transportation distance, low equipment efficiency, transformation of the transportation system and unbalanced mining and stripping engineering in the steering period caused by the existing zonal mining.
The purpose of the invention is realized by adopting the following technical scheme:
a surface mining area diversion exploitation transportation system, the system comprising:
mining in a single mining area, advancing a working slope, discarding an inner dumping field following the working slope, keeping a minimum safety distance required by mining at the bottom of a pit, arranging a middle ditch transportation road in the inner dumping field, timely following a dumping working line formed by a dumping working flat plate at the upper part in the mining area according to a dumping working flat plate at the lower part to form an goose-matrix inner dumping field and an exploitation transportation system, transporting a stripped rock mass to the inner dumping field for discarding through the formed goose-matrix exploitation transportation system, and transporting the mined ore to an ore treatment system through the goose-matrix exploitation transportation system;
the mining area is diverted to mining, the pushing speed of the middle of the working slope is accelerated to form a wild goose array type working line, the inner soil discharge field is discarded following the working slope, a middle ditch transportation road is arranged in the inner soil discharge field, the wild goose array type exploitation transportation system is formed together with the moving pit line of the working slope, the stripped rock mass is transported to the inner soil discharge field through the formed wild goose array type exploitation transportation system to be discarded, and the mined ore is transported to the ore treatment system through the wild goose array type exploitation transportation system.
Preferably, the middle ditch transportation road is arranged inside the inner soil discharging field and is formed by advanced discharging of the soil discharging working flat plate.
Preferably, the wild goose battle type exploitation transportation system is arranged on the working upper and the inner soil discharge field.
Preferably, in the process of mining in a single mining area, on the basis of ensuring the stability of the slope of the end slope, the slope angle of the end slope is improved, the ground surface boundary of the mining area is kept unchanged, end slope roads are reduced or eliminated, a security platform is arranged, the bottom of the end slope is pushed outwards, end slope pressing coal is recovered, and the internal drainage space is increased.
Preferably, in the process of turning mining of the mining area, the surface boundary of the mining area is unchanged, the slope angle of the end slope is improved on one side far away from the continuous mining area, and the end slope pressed coal is recovered; and reducing or canceling end slope roads on one side close to the continuous mining area, reducing the remained ditch level of the inner soil discharge field or completely remained ditches, and reducing or avoiding re-stripping loose rock masses.
Preferably, the mining is carried out with a face shearer.
Compared with the prior art, the invention has the beneficial effects that: the scheme of the invention is derived on the basis of the existing open mine transportation theory and aging slope theory, and on the premise of ensuring normal production of the mine, the system simplifies an end slope transportation system, recovers end slope pressed coal, increases internal discharge space and reduces transportation cost. The invention has the advantages of strong applicability, low cost, good economic effect and higher popularization value.
Drawings
FIG. 1 is a top plan view of a stope during normal mining periods within a panel;
figure 2 is a top plan view of the stope during the panel turn;
FIG. 3 is a schematic illustration of an end upper backup;
FIG. 4 is a schematic cross-sectional view A-A, B-B of FIG. 1 and A '— A', B '— B' of FIG. 2 with advancement in the direction of production 13;
FIG. 5 is a schematic view of the groove of FIG. 2 taken along the C-C section.
In the figure: 1. an inner soil discharge field; 2. a working upper; 3. a pit bottom; 4. a middle trench transportation road; 5. end uppers; 6. mining the surface boundary of the mining area; 7. an end slope road; 8. a security platform; 9. pressing coal at the end slope; 10. keeping the ditch horizontal; 11. loosening rock mass; 12. continuing the surface boundary of the mining area; 13. the direction of mining; 14. the rock mass.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
A wild goose array type exploitation transportation system is adopted in a strip mining area, an end slope transportation system is simplified, end slope pressing coal is recovered, an inner discharge space is increased, and a transportation distance is shortened.
Specifically, the system includes single panel mining and panel diversion mining.
Referring to fig. 1 and 2, a mine site includes a mining area surface boundary 6 and a continuous mining area surface boundary 12 where mining equipment such as a stopwall shearer requires a change in mining direction 13. The arrows in the figure indicate the direction of production 13 and its changes.
Firstly, a single mining area internal mining process, referring to fig. 1, fig. 3 and fig. 4, a working slope 2 is advanced, an internal dumping field 1 is abandoned next to the working slope 2, a pit bottom 3 keeps a minimum safety distance required by mining, a middle ditch transportation road 4 is arranged on the internal dumping field 1, a dumping working flat plate at the upper part in the mining area follows up in time according to a dumping working line formed by a lower dumping working flat plate to form an goose-matrix internal dumping field and an exploitation transportation system, a stripped rock mass 14 is transported to the internal dumping field 1 through the formed goose-matrix exploitation transportation system to be abandoned, and mined ores are transported to an ore treatment system through the goose-matrix exploitation transportation system;
in the process of mining in a single mining area, the slope angle of the end slope 5 can be increased on the basis of ensuring the stability of the slope of the end slope 5, and as shown in fig. 3, the slope angle is increased from α to β1Or β2. Keeping the surface boundary 6 of the mining area unchanged, reducing or eliminating the end slope roads 7, arranging a security platform 8, pushing the bottom of the end slope 5 outwards, recovering the end slope pressing coal 9 and increasing the internal discharge space.
Secondly, the mining area turns to the mining process, as shown in fig. 2 and fig. 5, the middle advancing speed of the working slope 2 is accelerated to form an anser-battle-array type working line, the inner soil discharge field 1 is discarded along with the working slope 2, the middle ditch transportation road 4 is arranged on the inner soil discharge field 1, the anser-battle-array type exploitation transportation system is formed together with the moving pit line of the working slope 2, the stripped rock mass 14 is transported to the inner soil discharge field 1 through the formed anser-battle-array type exploitation transportation system to be discarded, and the mined ore is transported to the ore treatment system through the anser-array type exploitation transportation system.
In the process of turning mining in the mining area, the surface boundary 6 of the mining area is unchanged, the side slope angle of the end slope 5 is improved on one side far away from the continuous mining area, and the end slope pressure coal 9 is recovered; and reducing or eliminating the end slope road 7 on one side close to the continuous mining area, reducing the remained ditch level 10 of the inner soil discharge field 1 or completely remaining ditches, and reducing or avoiding heavy stripping of loose rock mass 11.
In the above system, the intermediate trench transport road 4 is provided inside the inner soil discharging yard 1 and is formed by advanced discharge of the soil discharging work flat plate. And arranging the wild goose-battle type exploitation transportation system on the working upper 2 and the inner soil discharge field 1.
For the system implementation, a face shearer is typically employed for mining in the mine.
The whole mining system is completed, secondary stripping during the turning of a mining area can be reduced, and an end slope conveying system is simplified. The system is suitable for open pit coal mines and other open pit mines.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to utilize the invention in various exemplary embodiments and with various alternatives and modifications as will be apparent to those skilled in the art from the above description and concepts, and all such modifications and variations are intended to be included within the scope of the following claims.
Claims (6)
1. A surface mining area diversion exploitation transportation system, comprising:
in the mining process in a single mining area, a working slope (2) is pushed, an inner dumping field (1) is abandoned next to the working slope (2), a pit bottom (3) keeps the minimum safety distance required by mining, a middle ditch transportation road (4) is arranged in the inner dumping field (1), a dumping working flat plate at the upper part in the mining area follows up in time according to a dumping working line formed by a lower dumping working flat plate to form an goose-matrix inner dumping field and an exploitation transportation system, a stripped rock mass (14) is transported to the inner dumping field (1) through the formed goose-matrix exploitation transportation system to be abandoned, and mined ores are transported to an ore treatment system through the goose-matrix exploitation transportation system;
the mining area turns to the mining process for the propulsion speed forms wild goose matrix formula working line in work group (2) middle part, and interior dump (1) is abandoned following work group (2) next to, and ditch haulage road (4) in the middle of interior dump (1) arranges forms wild goose matrix formula development transport system jointly with the removal pot line of work group (2), and the rock mass (14) of peeling off transports to interior dump (1) through the wild goose matrix formula development transport system who forms and abandons, and the ore of adopting passes through wild goose matrix formula development transport system transports to ore processing system.
2. The system of claim 1, wherein: the middle ditch transportation road (4) is arranged inside the inner soil discharging field (1) and is formed by advanced discharging of a soil discharging working flat plate.
3. The system of claim 1, wherein: the wild goose-battle type exploitation transportation system is arranged on the working upper (2) and the inner soil discharge field (1).
4. The system of claim 1, wherein: in the mining process in a single mining area, on the basis of ensuring the stability of the side slope of the end slope (5), the side slope angle of the end slope (5) is improved, the earth surface boundary (6) of the mining area is kept unchanged, end slope roads (7) are reduced or eliminated, a security platform (8) is arranged, the bottom of the end slope (5) is pushed outwards, end slope pressing coal (9) is recovered, and an inner drainage space is increased.
5. The system of claim 1, wherein: in the process of turning to mining in the mining area, the surface boundary (6) of the mining area is unchanged, the slope angle of the end slope (5) is improved on one side far away from the continuous mining area, and the end slope pressing coal (9) is recovered; and reducing or eliminating the end slope road (7) on one side close to the continuous mining area, reducing the remained trench level (10) or the whole remained trench of the inner soil discharge field (1), and reducing or avoiding repeated stripping of loose rock mass (11).
6. The system of claim 1, wherein: and mining by adopting an end slope coal mining machine.
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| CN201910089061.2A CN109630121B (en) | 2019-01-30 | 2019-01-30 | Steering, developing and transporting system for strip mining area |
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| CN201910089061.2A CN109630121B (en) | 2019-01-30 | 2019-01-30 | Steering, developing and transporting system for strip mining area |
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| CN109630121B true CN109630121B (en) | 2020-08-28 |
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| CN110939446B (en) * | 2019-07-29 | 2020-11-03 | 中国矿业大学 | Steering method for mining area of ultra-thick inclined coal seam |
| CN112983525B (en) * | 2021-03-12 | 2022-04-05 | 中国矿业大学 | Inner soil discharge yard ditch remaining discharge method beneficial to ventilation of near-horizontal opencast coal mine stope |
| CN112943252B (en) * | 2021-04-22 | 2023-03-31 | 辽宁工程技术大学 | Steering continuous mining method for mining area of strip mine |
| CN114508354B (en) * | 2022-01-29 | 2022-12-09 | 中国矿业大学 | Inverted-pile internal-discharge mining method for strip mine stope with huge thick coal seam |
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| SU1003593A1 (en) * | 1981-08-24 | 1985-01-07 | Предприятие П/Я М-5703 | Method of open-cast mining of useful mineral deposit slightly inclined seams |
| CN100464054C (en) * | 2006-07-25 | 2009-02-25 | 武汉理工大学 | Fast spoil disposal slope protection and ecological recovery open-pit mining technology |
| CN103046929A (en) * | 2012-12-28 | 2013-04-17 | 中国神华能源股份有限公司 | Method for stripping rock layer of end slope |
| CN103133003B (en) * | 2013-02-25 | 2015-10-21 | 中国矿业大学 | Opencut steep end-slope mining method |
| RU2571776C1 (en) * | 2014-09-30 | 2015-12-20 | Акционерная компания "АЛРОСА" (публичное акционерное общество) (АК "АЛРОСА" (ПАО) | Open development of steep ore bodies |
| CN104405396A (en) * | 2014-12-05 | 2015-03-11 | 辽宁工程技术大学 | Mining method for passing open-pit coal mine of coal barren area through leaving island to build bridges |
| CN104806247B (en) * | 2015-04-28 | 2017-03-08 | 中国矿业大学 | Longitudinal combination bridge transportation resources is built in the middle of open-pit mine stope |
| CN105507905B (en) * | 2016-02-03 | 2017-12-26 | 长沙有色冶金设计研究院有限公司 | Surface mining cross anticline during interior discharge method |
| CN107687342B (en) * | 2017-08-21 | 2019-05-21 | 中国矿业大学 | A kind of open coal mine drawing bucket shovel active line segmentation alternative expression exploiting field forward method |
| CN107542464B (en) * | 2017-09-28 | 2019-01-25 | 西安科技大学 | A kind of pinpoint blasting method under the conditions of open coal mine shovel and truck technology |
| CN108222941B (en) * | 2018-03-19 | 2020-03-24 | 长沙有色冶金设计研究院有限公司 | Continuous mining method for strip mine |
| CN108716402B (en) * | 2018-05-21 | 2019-11-05 | 中国矿业大学 | A kind of Semicontinuous Technology in Surface Coal Mines intermediate axle arrangement |
| CN109026006B (en) * | 2018-09-20 | 2020-07-24 | 内蒙古煤矿设计研究院有限责任公司 | Novel method for mining open-pit mine slope covered mineral products |
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