CN106869937A - Discharge method in the side of opencut end - Google Patents
Discharge method in the side of opencut end Download PDFInfo
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- CN106869937A CN106869937A CN201710230812.9A CN201710230812A CN106869937A CN 106869937 A CN106869937 A CN 106869937A CN 201710230812 A CN201710230812 A CN 201710230812A CN 106869937 A CN106869937 A CN 106869937A
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- coal
- slotting
- section area
- exploitation
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000003245 coal Substances 0.000 claims abstract description 137
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims description 11
- 239000011435 rock Substances 0.000 claims description 8
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000005065 mining Methods 0.000 description 7
- 230000032258 transport Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000013590 bulk material Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
- E21C47/02—Machines for obtaining or the removal of materials in open-pit mines for coal, brown coal, or the like
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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)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The embodiment of the invention discloses discharge method in a kind of side of opencut end, including：By slotting area and the simultaneously predetermined coal seam separate zone production in section area, predetermined coal seam is divided into coal, middle coal and lower coal, and slotting area is arranged side by side with simultaneously section area；Separate zone production includes：Along slotting area to the direction exploitation slotting area in simultaneously section area and the upper coal in simultaneously section area；And when slotting area and and the upper coal in section area adopted after, with slotting area and and section area line of demarcation as boundary, to and the exploitation of Duan Qu directions and section area middle coal and lower coal, to the middle coal and lower coal in slotting area direction exploitation slotting area；When the exploitation position of coal under simultaneously section area and the spacing in the line of demarcation are preset distance, and the middle coal in slotting area and lower coal are when adopting to precalculated position, and section area and slotting area in form goaf, using goaf as dumping area, overburden arranged in side in dumping in area by being held.Can solve the problems, such as that internal dumping faces using the embodiment of the present invention and not dump space, it is ensured that normal production continues, and reduces production cost.
Description
Technical field
The present embodiments relate to technical field of coal mine, and in particular to discharge method in a kind of opencut end side.
Background technology
Casting refers to the operation that overburden is entered specified place from excavating plant, is a weight of Open-pit Production Run
Want link.At present, casting mode is mainly using outer row, will overburden be thrown into the outside in excavating plant goaf.In stripping
, it is necessary to the overburden of excavating plant is transported to the outside in excavating plant goaf by holding side Transportation Highway when being arranged from beyond the region of objective existence,
Overburden transportation range is long, and freight is high, and the storage of overburden needs to take substantial amounts of vacant lot, considerably increases production
Cost.
The content of the invention
In view of this, the embodiment of the present invention proposes discharge method in a kind of opencut end side, to solve above-mentioned technical problem.
The embodiment of the present invention proposes discharge method in a kind of opencut end side, and it includes：Slotting area is predetermined with simultaneously section area
Coal seam separate zone production, predetermined coal seam is divided into coal, middle coal and lower coal, and slotting area is arranged side by side with simultaneously section area；Wherein described layering
Exploitation includes：Along slotting area to the direction exploitation slotting area in simultaneously section area and the upper coal in simultaneously section area；And when slotting area and and section area
Upper coal adopted after, with slotting area and and section area line of demarcation as boundary, to and Duan Qu directions exploitation and section area middle coal and lower coal,
To the middle coal and lower coal in slotting area direction exploitation slotting area；When the exploitation position of coal under simultaneously section area is with the spacing in the line of demarcation
Preset distance, and the middle coal in slotting area and lower coal adopted during to precalculated position, and section area and slotting area in form goaf, with
The goaf is dumped in area overburden by holding to be arranged in side as area is dumped in described.
Alternatively, described that overburden is arranged after described dumping in area by holding in side, methods described also includes：With institute
Line of demarcation is stated for boundary, to the middle coal and lower coal in the simultaneously exploitation of Duan Qu directions tracing type and section area.
Alternatively, the width in the slotting area is end side degree of having a lot of social connections, the default seat earth of natural discharging slope width and slotting area
Safe width sum.
Alternatively, side degree of having a lot of social connections in end is 40 meters, and natural discharging slope width is 76.79 meters, the default seat earth safety in slotting area
Width is 40 meters.
Alternatively, the depth in the slotting area is the default seat earth Safe width of natural discharging slope projector distance and slotting area
Sum.
Alternatively, the natural discharging slope projector distance is 80 meters, and the default seat earth Safe width in slotting area is 40 meters.
Alternatively, the slotting area of exploitation is transported to refuse dump intermediate axle and transports coal measures with the upper coal in simultaneously section area by upper coal seam floor
System, coal seam floor is transported in the middle coal process in the slotting area of exploitation and simultaneously section area.
Alternatively, the slotting area of exploitation and simultaneously dug between coal seam floor and lower coal seam floor in the lower Mei Jingbingduan areas in section area
Transport ditch is transported to refuse dump raw coal transportation system, and with slotting area and simultaneously section area connects the transport ditch respectively.
Alternatively, it is described by slotting area and and section area predetermined coal seam separate zone production before, methods described also includes：To institute
Predetermined seam roof working pit edge dirt band rock stratum is stated to be exploited in advance.
Alternatively, the preset distance is 155-165 meters.
Discharge method is by first by slotting area and the upper coal mining in simultaneously section area in opencut end side provided in an embodiment of the present invention
It is complete, the middle coal and lower coal mining in Zai Jiangbingduan areas and slotting area to precalculated position, using and section area and slotting area goaf as
Area is dumped, overburden arranged in side in slotting area, can effectively solving internal dumping and face to dump asking for insufficient space by being held
Topic, it is ensured that normal production continues, while shortening the haul distance of truck during interior row, reduces production cost.
Brief description of the drawings
Fig. 1 is the flow chart of discharge method in the opencut end side of the embodiment of the present invention.
Fig. 2 is the slotting area of discharge method and and section area mining of raw coal programme diagram in the opencut end side of the embodiment of the present invention.
Fig. 3 is the North side slotting area profile of discharge method in the opencut end side of the embodiment of the present invention.
Fig. 4 is the North side slotting area plan of discharge method in the opencut end side of the embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical scheme is described in detail.
Fig. 1 shows the flow chart of discharge method in the opencut end side of the embodiment of the present invention, and Fig. 2 shows implementation of the present invention
The slotting area of discharge method and simultaneously section area mining of raw coal programme diagram in the opencut end side of example, it includes：
S101, by slotting area and the simultaneously predetermined coal seam separate zone production in section area, predetermined coal seam is divided into coal, middle coal and lower coal,
Slotting area is arranged side by side with simultaneously section area；
In embodiments of the present invention, illustrated by taking 6 coal seams as an example, 6 coal seams are nearly horizontal single coal bed, nearly level refers to
The inclination angle in coal seam is less than 8 °, and single coal bed refers to that only one layer of coal seam can adopt in limit of mining.Wherein 6 coal seams are divided into coal on 6,6
Middle coal and 6 times coals.By slotting area and and section area 6 coal seams according to coal and 6 times coal separate zone productions in coal, 6 on 6.
During separate zone production, the slotting area and the simultaneously upper coal in section area are exploited to the direction in simultaneously section area along slotting area first.Will
The raw coal of the upper coal of digging transports slotting area and and section area.In embodiments of the present invention, in the slotting area of exploitation and the 6 of simultaneously section area
Coal is transported to refuse dump intermediate axle by coal seam floor on 6 to be transported coal measures and unites, and finally enters floor crushing station.
Then, when slotting area and and the upper coal in section area adopted respectively after, with slotting area and and section area line of demarcation as boundary, to
And the middle coal and lower coal in the exploitation of Duan Qu directions and section area, to the middle coal and lower coal in slotting area direction exploitation slotting area.In the present invention
(Fig. 2 is referred in embodiment), exploit coal and 6 in the 6 of slotting area as starting point, eastwards with slotting area and the simultaneously point in section differentiation boundary line
Coal and 6 times coals in the 6 of lower coal, westwards exploitation and section area.
S102, when and section area under the spacing in exploitation position and line of demarcation of coal be preset distance, and slotting area middle coal
Adopted during to precalculated position with lower coal, goaf is formed in twoth area, overburden is helped interior row by the goaf as area is dumped by holding
In dumping in area.
Preferably, the exploitation position of coal and the spacing in line of demarcation are between 155-165 meters and under section area.
In embodiments of the present invention, when the exploitation position of coal under simultaneously section area and the spacing in line of demarcation are 160 meters, and slotting area
6 in coal and 6 times coals adopt during to precalculated position, coal and 6 times coals are transported in 6 for exploiting.The slotting area of exploitation and simultaneously the 6 of section area
Middle coal is transported through coal seam floor in 6.In 6 times Mei Youbingduan areas in the slotting area of exploitation and simultaneously section area between coal seam floor and lower coal seam floor
The transport ditch for digging is transported to refuse dump raw coal transportation system, then transports, it is described transport ditch respectively with slotting area and and section area company
It is logical, can accelerate to produce transporting for raw coal, improve interior row's efficiency.As shown in Fig. 2 simultaneously section area dumps with the goaf formation in slotting area
Area, helps the western termination to carry out interior row in dumping in area by the ends of ▽ 1040.
Discharge method is by first by slotting area and the upper coal mining in simultaneously section area in opencut end side provided in an embodiment of the present invention
Complete, Zai Jiangbingduan areas form with the goaf in slotting area and arrange with middle coal and lower coal mining to the precalculated position, and section area in slotting area
Area is abandoned, overburden is arranged in dumping in area by holding in side, can effectively solved the problems, such as that internal dumping faces and dump insufficient space,
Ensure that normal production continues, while shortening the haul distance of truck during interior row.
On the basis of above-described embodiment, alternatively, for step S102, overburden arranged in side in dumping area by being held
After interior, the method also includes：
Tracing type exploitation and the middle coal and lower coal in section area；Direction of extraction is the direction that slotting area points to simultaneously section area, with described
Point on line of demarcation is starting point, carries out the tracing type exploitation.In this way, can make slotting area have it is enough dump space, to protect
The continuity that card is dumped.In certain embodiments, can be while coal and 6 times coals be respectively arranged two in 6 that simultaneously section area has not adopted
Platform power shovel, carries out the tracing type exploitation.
On slotting width, as shown in Figures 2 and 3, to realize dumping prioritization scheme from the Duan Bang roads of ▽ 1040, it is necessary to by ▽
The coal extraction in 1040 Duan Bang roads west sides and southern side forming enough goafs so that power shovel from 6 coal seam floor to adopting
Field direction of propulsion carries out slotting, to meet the requirement that section high is dumped.Slotting width is made up of following parameter：The ends of ▽ 1040 side has a lot of social connections
Degree E, natural discharging slope width C, the default seat earth Safe width F in slotting area；According to produced on-site experience, bulk material is pacified naturally
Breath angle A is accounted for according to 38 °；Slotting width B=E+C+F, wherein C=H*CotA, H are the ends of ▽ 1040 side and 6 seat earths
Vertical range.In embodiments of the present invention, A=38 °, H=60 meters, F=40 meters, C=76.79 meters, B=156.79 meters.
On cut depth, when being dumped the termination of the ends of ▽ 1040 side, due to the effect of resting in peace naturally of bulk material,
Necessarily cause coal petrography mixes situation.In order to avoid coal petrography mixes and be easy to the extraction of working pit edge raw coal, it is necessary to working pit edge is pushed away
Entering the raw coal in direction is carried out and section, is exactly cut depth from the distance that the termination of the ends of ▽ 1040 side advances eastwards.Cut depth by
The default seat earth width composition of natural discharging slope projector distance and slotting area, maximum slope width C 1, slotting area presets coal seam bottom
Plate Safe width F1, as the center of circle, natural discharging slope projector distance does a circular arc to the O points with the ends of ▽ 1040 side termination for radius, this
The tangent line A1B1 of circular arc is the maximal projection distance in cut depth direction, cut depth H1=C1+F1.In the embodiment of the present invention
In, C1=80 meters, F1=40 meters, H=120 meters.
Further, to slotting area and and section area predetermined coal seam separate zone production before, can also be to predetermined seam roof
Exploited in advance working pit edge dirt band rock stratum.Specifically, on the premise of stability of slope is ensured, the working pit edge of 6 coal top boards is pressed from both sides
Cash rock stratum is exploited in advance, with 6 on the bench crest of coal keep certain relative distance.The working pit edge of 6 coal top boards of advanced exploitation
After the completion of dirt band rock stratum, then the North helped on 6 coal and 6 play coals are carried out and section treatment to the North side successively in coal, 6, and section model
Enclose by interior row's coal-rock detection line (i.e. internal dumping coal-rock detection line, as shown in Fig. 2 internal dumping coal-rock detection line west side is original
Internal dumping) to the termination to the east of the Duan Bang roads of ▽ 1040, raw coal enters internal dumping by existing Working bench by intermediate axle
Fortune coal measures system, finally enters floor crushing station, after coal seam completely and after section, then from the west side termination on 1040 Duan Bang roads to stope side
To slotting is carried out, to vacate goaf well-to-do enough, overburden is facilitated to enter to goaf from the western termination on the Duan Bang roads of ▽ 1040
Row in row, saves haul distance, row's efficiency in raising.
More than, technical scheme is described in detail in conjunction with specific embodiments, described specific implementation
Example is used to help understand thought of the invention.The derivation that those skilled in the art make on the basis of the specific embodiment of the invention
Fallen within the scope of the present invention with modification.
Claims (10)
1. interior discharge method is helped at a kind of opencut end, it is characterised in that including：
By slotting area and and section area predetermined coal seam separate zone production, predetermined coal seam is divided into coal, middle coal and lower coal, slotting area and simultaneously
Section area is arranged side by side；Wherein described separate zone production includes：
Along slotting area to the direction exploitation slotting area in simultaneously section area and the upper coal in simultaneously section area；And
When slotting area and and the upper coal in section area adopted after, with slotting area and and section area line of demarcation as boundary, to and Duan Qu directions open
The middle coal in Cai Bingduan areas and lower coal, to the middle coal and lower coal in slotting area direction exploitation slotting area；
When and section area under the spacing in exploitation position and the line of demarcation of coal be preset distance, and the middle coal in slotting area and lower coal
Adopt during to precalculated position, goaf is formed in simultaneously section area and slotting area, using the goaf as area is dumped, overburden is led to
Cross to be arranged in the side of end and dumped in area in described.
2. the method for claim 1, it is characterised in that described to dump in area overburden in described by holding to be arranged in side
Afterwards, methods described also includes：
With the line of demarcation as boundary, to the middle coal and lower coal in the simultaneously exploitation of Duan Qu directions tracing type and section area.
3. the method for claim 1, it is characterised in that the width in the slotting area is end side degree of having a lot of social connections, natural discharging slope
The default seat earth Safe width sum of width and slotting area.
4. method as claimed in claim 3, it is characterised in that side degree of having a lot of social connections in end is 40 meters, and natural discharging slope width is 76.79
Rice, the default seat earth Safe width in slotting area is 40 meters.
5. the method for claim 1, it is characterised in that the depth in the slotting area is natural discharging slope projector distance and draws
The default seat earth Safe width sum in groove area.
6. method as claimed in claim 5, it is characterised in that the natural discharging slope projector distance is 80 meters, and slotting area presets
Seat earth Safe width is 40 meters.
7. the method for claim 1, it is characterised in that the slotting area of exploitation and and section area upper coal by upper coal seam floor
Refuse dump intermediate axle fortune coal measures system is transported to, coal seam floor is transported in the middle coal process in the slotting area of exploitation and simultaneously section area.
8. the method for claim 1, it is characterised in that the slotting area of exploitation and and the lower Mei Jingbingduan areas in section area in coal
The transport ditch dug between base plate and lower coal seam floor is transported to refuse dump raw coal transportation system, the transport ditch respectively with slotting area and
And section area connects.
9. the method for claim 1, it is characterised in that it is described by slotting area and and section area predetermined coal seam separate zone production
Before, methods described also includes：
The predetermined seam roof working pit edge dirt band rock stratum is exploited in advance.
10. the method as described in claim 1-9 is any, it is characterised in that the preset distance is 155-165 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710230812.9A CN106869937B (en) | 2017-04-11 | 2017-04-11 | Help interior discharge method in opencut end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710230812.9A CN106869937B (en) | 2017-04-11 | 2017-04-11 | Help interior discharge method in opencut end |
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| CN106869937A true CN106869937A (en) | 2017-06-20 |
| CN106869937B CN106869937B (en) | 2019-01-25 |
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| CN201710230812.9A Active CN106869937B (en) | 2017-04-11 | 2017-04-11 | Help interior discharge method in opencut end |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206543A (en) * | 2019-06-13 | 2019-09-06 | 中国神华能源股份有限公司 | Open coal mine transportation resources |
| CN110984993A (en) * | 2019-12-12 | 2020-04-10 | 神华准格尔能源有限责任公司 | Mining process for realizing non-transportation dumping of strip mine and scraper type dumping machine |
| CN111894593A (en) * | 2020-08-05 | 2020-11-06 | 东北大学 | Method for realizing rapid internal drainage in metal strip mine hillside mining |
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| US5636903A (en) * | 1993-09-14 | 1997-06-10 | Bhp Australia Coal Limited | Mining system for removing overburden |
| CN101899976A (en) * | 2010-07-15 | 2010-12-01 | 煤炭科学研究总院太原研究院 | Continuous coal mining process method of open-pit coal mine |
| CN103216237A (en) * | 2012-12-28 | 2013-07-24 | 中国神华能源股份有限公司 | Open pit coal mine mining process |
| CN104790956A (en) * | 2015-03-13 | 2015-07-22 | 余绍泽 | Remote control heading machine tunnel type or fully-mechanized top coal exploitation end slope coal technology |
| CN105626068A (en) * | 2015-12-30 | 2016-06-01 | 中国神华能源股份有限公司 | Dismantling method of open-pit coal mine end slope bridge |
-
2017
- 2017-04-11 CN CN201710230812.9A patent/CN106869937B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5636903A (en) * | 1993-09-14 | 1997-06-10 | Bhp Australia Coal Limited | Mining system for removing overburden |
| CN101899976A (en) * | 2010-07-15 | 2010-12-01 | 煤炭科学研究总院太原研究院 | Continuous coal mining process method of open-pit coal mine |
| CN103216237A (en) * | 2012-12-28 | 2013-07-24 | 中国神华能源股份有限公司 | Open pit coal mine mining process |
| CN104790956A (en) * | 2015-03-13 | 2015-07-22 | 余绍泽 | Remote control heading machine tunnel type or fully-mechanized top coal exploitation end slope coal technology |
| CN105626068A (en) * | 2015-12-30 | 2016-06-01 | 中国神华能源股份有限公司 | Dismantling method of open-pit coal mine end slope bridge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206543A (en) * | 2019-06-13 | 2019-09-06 | 中国神华能源股份有限公司 | Open coal mine transportation resources |
| CN110984993A (en) * | 2019-12-12 | 2020-04-10 | 神华准格尔能源有限责任公司 | Mining process for realizing non-transportation dumping of strip mine and scraper type dumping machine |
| CN110984993B (en) * | 2019-12-12 | 2021-07-30 | 神华准格尔能源有限责任公司 | Mining process for realizing non-transportation dumping of strip mine and scraper type dumping machine |
| CN111894593A (en) * | 2020-08-05 | 2020-11-06 | 东北大学 | Method for realizing rapid internal drainage in metal strip mine hillside mining |
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| CN106869937B (en) | 2019-01-25 |
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