CN107687342B - A kind of open coal mine drawing bucket shovel active line segmentation alternative expression exploiting field forward method - Google Patents
A kind of open coal mine drawing bucket shovel active line segmentation alternative expression exploiting field forward method Download PDFInfo
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- CN107687342B CN107687342B CN201710719462.2A CN201710719462A CN107687342B CN 107687342 B CN107687342 B CN 107687342B CN 201710719462 A CN201710719462 A CN 201710719462A CN 107687342 B CN107687342 B CN 107687342B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a kind of open coal mines, and bucket shovel active line to be drawn to be segmented alternative expression exploiting field forward method, using the continous way steering mode for staying the slow side of ditch, I exploiting field is started to II exploiting field right-angle steering transition period, the mined out ditch of ladder type being arranged in downward direction is reserved within the scope of the coincidence in I exploiting field and II exploiting field, then the drawing bucket in I exploiting field of opencut and II exploiting field shovel active line is divided into two sections from midpoint respectively, equal digging bandwidth is determined according to drawing bucket to shovel job parameter, each segmentation is used as a width dass, pass through being alternately propelled for I exploiting field dass and II exploiting field dass, I exploiting field is discharged in a large amount of after exploiting between emptying, II exploiting field overburden is reversely interior nearby to be arranged, guarantee to draw bucket shovel working condition during exploiting field turns to basicly stable, realize the uninterrupted operation that coal working face smoothly connects, it can be realized and arrange haul distance in shortening , reduce land seizure, and then reduce adopt stripping cost, especially suitable for open coal mine draw bucket shovel active line exploiting field turn to.
Description
Technical field
The present invention relates to a kind of open coal mine exploiting field forward method, specifically a kind of open coal mine that is suitable for draws bucket shovelman to make
The segmentation alternative expression exploiting field forward method of line, belongs to surface mining technical field.
Background technique
The coal resources preservation of China's open coal mine be mainly characterized by mining depth is big, seam inclination is small, coalfield distribution ratio
Compared with concentration, it is suitble to the mechanical mining in Large-scale Coal base, the type of opencast mining technique determines its reasonable active line
Length, active length are the width in the single exploiting field of opencut, often use block mining for large size strip mining transformation coalfield
To realize the maximization of development of resources benefit.
With deepening continuously for outdoor coal exploitation, the large outdoors colliery that the country is built up almost all suffers from exploiting field connecting
Problem, in order to guarantee the continuity of Production of Strip Mine and the stability of production capacity, usually when conditions permit, opencut is equal
Select the exploiting field continuation method of gradual steering.
Exploiting field is turned to has apparent advantage relative to drawing ditch again in terms of engineering relationships and economic benefit.However it is different
Production technology have its own particularity: shovel-truck techmologv is relatively flexible production practice, steering procedure phase
Research achievement and knowhow to fairly simple, and in industry is relatively abundanter；And Pull shovel handling technique is turned to
Know-how, at home and abroad there is no records at present.
Pull shovel handling technique is the advanced opencut stripping technology that China introduces, and main production equipments are to draw bucket shovel
(also known as suspension bucket shovel), drawing bucket shovel is a kind of walking excavator of large size, is mainly used for when removing casting to mined out
Area, open pit quarry edge, can by the casting of bulk to larger distance, have be easily installed, be highly reliable, flexibility
High, the characteristics of walking ability is good, production cost is low (only monobucket-truck 40%), broad technical operation performance makes it
It directly dumps the material of excavation, without the use of transporting equipment, very high efficiency is played in exploitation excacation, but equipment is purchased
Set that investment is huge, and single device price convert into nearly 1,000,000,000 yuan of RMB, economically so huge fixed assets are left unused
It is huge economic loss.Therefore, the steering of bucket shovelman's skill is drawn not only to guarantee that balanced of relationship is adopted-arranged to opencut itself
Match, while to guarantee that bucket shovel equipment is drawn to continue efficiently to produce.
In order to reduce the side of the end between exploiting field pressure coal, open pit mine section is generally delimitated with lowest part coal seam, so that ground
Table boundary, which issues, to be overlapped, and will lead to the secondary removing for connecting exploiting field close to the interior row for connecting exploiting field side in previous exploiting field, in order to
It reduces secondary removing and generallys use and stay row in ditch, lose in a large amount of between emptying, while the connecting in order to guarantee coal production, connect
Continuous exploiting field carries out working face developing and generates a large amount of overburdens, so that serious unbalance, interior row between overburden and interior emptying during turning to
Insufficient section needs to be discharged to farther higher place, to increase the freight of equipment, or even needs to increase outer dump, make
The economic benefit for obtaining opencut declines to a great extent.
It draws the removing mode of bucket shovel to belong to without transport casting, i.e., overburden is directly dumped into internal dumping, so it is adopted
Pick must be a parallel goaf with outside, traditional working method be must previous exploiting field exploitation complete post-tensioning bucket and shovel to stop
Only operation waits secondary removing, connects after the completion of exploiting field perforated blasting, working face such as reorganize and outfit at the work and could continue to put into production,
Cause equipment to be stagnated and connect interruption with coal working face, it cannot be guaranteed that coal stablizes supply.In addition, the pit of opencut is in leakage
By wink at the end of bucket-shaped, before lowest part coal recovery terminates, the huge space in top is not available, and previous exploiting field is exploited
Between discharge huge interior emptying between, but nervous node between interior emptying has been had already passed by from the time, so that previous exploiting field is exploited
The pit of formation can not restore original landforms.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of open coal mine drawing bucket shovel active line segmentation alternative expression exploiting field steering side
Method can be realized between emptying in release in advance, shortens interior row's haul distance, reduce land seizure, and then stripping cost, raising warp are adopted in reduction
Ji benefit draws the exploiting field of bucket shovel active line to turn to especially suitable for open coal mine.
To achieve the above object, this open coal mine draws bucket shovel active line segmentation alternative expression exploiting field forward method respectively will be outdoor
I exploiting field of mine and the drawing bucket shovel active line in II exploiting field are divided into two sections from midpoint, determine equal adopt according to drawing bucket to shovel job parameter
Bandwidth is dug, each segmentation is used as a width dass, passes through being alternately propelled for I exploiting field dass and II exploiting field dass, I exploiting field
It is discharged after exploitation in largely between emptying, the nearest reversed interior row of II exploiting field overburden guarantees that drawing bucket shovels during exploiting field turns to
Working condition is basicly stable, realizes the uninterrupted operation that coal working face smoothly connects；
Specifically includes the following steps:
A. using the continous way steering mode for staying the slow side of ditch, I exploiting field is boosted to terminal, is started to II exploiting field right angle
During transition, the one end of I exploiting field active line towards II exploiting field within the scope of the coincidence in I exploiting field and II exploiting field is using drawing bucket
The reserved mined out ditch of ladder type being arranged in downward direction of shovelman's skill；
B. it by I exploiting field active line from medial section, and is boosted and is adopted using drawing bucket shovelman's skill from the left side of medial section
A width dass I out；
C. it is boosted from the right side of the medial section of I exploiting field active line using drawing bucket shovelman's skill and produces a width dass
II, dass I and dass II penetrate through, and the right end of dass II prolongs the mined out ditch of ladder type upwards with the mined out ditch perforation of ladder type simultaneously
It stretches to form II exploiting field active line；
D. I exploiting field active line after penetrating through dass I and dass II is again from medial section, and from medial section
Left side is boosted using drawing bucket shovelman's skill and produces a width dass III, while II exploiting field active line extends downwards increase by one
The length of dass simultaneously promotes to the right one width dass IV of extraction using shovel-truck techmologv, and the dass III in I exploiting field is exploited
After discharge in a large amount of between emptying, II exploiting field overburden nearby in row；
E. II exploiting field active line continues to promote one width digging of extraction to the right on the basis of dass IV using drawing bucket shovelman's skill
Band V；
F. I exploiting field active line is boosted using drawing bucket shovelman's skill on the basis of dass II and produces a width and dass
III concordant dass VI；
G. II exploiting field active line is boosted on the basis of dass IV produces a width dass VII, dass VII and digging
The perforation of band VI is completed right-angle steering block transition and is connected；
H. and so on, repeat the above steps d, e, f, g are constantly promoted using the propulsion mode for being segmented-taking a step, until complete
At the propulsion in entire I exploiting field.
As a further improvement of the present invention, in the step b promote extraction one width dass I mode be from
The mode that I exploiting field active line medial section promotes to the left；The mode of one width dass II of extraction is promoted in the step c is
The mode promoted to the right from I exploiting field active line medial section；The mode of one width dass III of extraction is promoted in the step d
It is the mode promoted to the left from active line medial section；The mode of extraction one width and dass VI is promoted in the step f
It is the mode promoted to the right from active line medial section.
As a further improvement of the present invention, the mode of one width dass IV of extraction is promoted in the step d is
The mode promoted from up to down；It is the side of bottom-up propulsion that the mode for producing a width dass V is promoted in the step e
Formula；It is the mode of bottom-up propulsion that the mode for producing a width dass VII is promoted in the step g.
Compared with prior art, this open coal mine draws bucket shovel active line segmentation alternative expression exploiting field forward method using " work
The mode that line segmentation alternating " turns to, the dass III in I exploiting field of exploitation is segmented by active line, advances to I exploiting field partial region
In boundary's release is a large amount of between emptying, the extensive stripping bench in exactly II exploiting field, is greatly solved between emptying during turning at this time
Insufficient problem, it is synchronous with dass III that dass IV is exploited using shovel-truck techmologv, it is connected to draw the shovel that struggles against to create
Working face, overcomes equipment halt production caused by dass VI, VII digging of dass coincidence and working face connects the problem of interrupting, and makes
It draws bucket shovel to be not required to stagnantly be transitioned into II exploiting field naturally from I exploiting field, ensure that the stabilization of overall throughput and draws bucket shovel equipment
Utilization rate, this open coal mine draw bucket shovel active line segmentation alternative expression exploiting field forward method can be realized in advance release in emptying between,
Row's haul distance, reduction land seizure in shortening, and then reduce and adopt stripping cost, increase economic efficiency, it is drawn especially suitable for open coal mine
The exploiting field of bucket shovel active line turns to.
Detailed description of the invention
Fig. 1 is stope shape top view before opencut turns to；
Fig. 2 is that I exploiting field produces the top view after a width dass I；
Fig. 3 is that I exploiting field produces the top view after a width dass II；
Fig. 4 is that I exploiting field produces a width dass III while the trapezoidal mined out ditch in II exploiting field extends downwardly and increases a dass
Length and to the right promote extraction one width dass IV after top view；
Fig. 5 is that II exploiting field produces the top view after a width dass V；
Fig. 6 is that I exploiting field produces the top view after a width dass VI；
Fig. 7 is the top view after II exploiting field produces a width dass VII and penetrates through with the exploiting field I；
Fig. 8 is to turn to front and back stope comparison top view.
In figure: 1, I exploiting field, 2, II exploiting field, 3, the mined out ditch of ladder type, 4, dass I, 5, dass II, 6, dass III, 7,
Dass IV, 8, dass V, 9, dass VI, 10, dass VII.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in figure 8, this open coal mine, which draws bucket shovel active line segmentation alternative expression exploiting field forward method to use, stays the slow side of ditch
The drawing bucket in I exploiting field 1 of opencut and II exploiting field 2 shovel active line is divided into two sections from midpoint respectively by continous way steering mode, according to
Bucket shovel job parameter is drawn to determine equal digging bandwidth, each segmentation is used as a width dass, and I exploiting field is divided into four width dasses
(dass I 4, dass II 5, dass III 6, dass VI 9), II exploiting field are divided into three width dass (dasses IV 7, digging
Band V 8, dass VII 10), by being alternately propelled for I exploiting field, 1 dass and II exploiting field, 2 dass, after I exploiting field 1 is exploited
In release largely between emptying, the nearest reversed interior row of II exploiting field, 2 overburden guarantees that drawing bucket shovels the working condition base during exploiting field turns to
This stabilization realizes the uninterrupted operation that coal working face smoothly connects；
Specifically includes the following steps:
A. using the continous way steering mode for staying the slow side of ditch, I exploiting field 1 is advanced into terminal, as shown in Figure 1, starting to II
2 right-angle steering transition period of exploiting field, I exploiting field (1) active line within the scope of the coincidence in I exploiting field 1 and II exploiting field 2 is towards II exploiting field
2 one end is using the reserved mined out ditch 3 of ladder type being arranged in downward direction of drawing bucket shovelman's skill；
B. as shown in Fig. 2, by I exploiting field, 1 active line from medial section, and from the left side of medial section using drawing bucket shovelman's skill
It boosts and produces a width dass I 4；
C. as shown in figure 3, from the right side of the medial section of I exploiting field, 1 active line using drawing bucket shovelman's skill to boost extraction
One width dass II 5, dass I 4 and dass II 5 penetrate through, and the right end of dass II 5 makes with the mined out perforation of ditch 3 of ladder type simultaneously
The mined out ditch 3 of ladder type upwardly extends to form II exploiting field, 2 active line；
D. as shown in figure 4, I exploiting field, 1 active line after dass I 4 and dass II 5 are penetrated through is again from medial section,
And from the left side of medial section using draw bucket shovelman's skill push ahead extraction one width dass III 6, while II exploiting field, 2 active line to
Extended portion increases the length of a dass and promotes one width dass IV 7 of extraction to the right using shovel-truck techmologv；I adopts
The dass III 6 in area 1 discharges a large amount of interior emptyings after exploiting between, II exploiting field, 2 overburden row, guarantee can draw bucket shovel to exist in nearby
Working condition is basicly stable during exploiting field turns to；
E. as shown in figure 5, II exploiting field, 2 active line is promoted to the right on the basis of dass IV 7 using drawing bucket shovelman's skill continuation
Produce a width dass V 8；
F. as shown in fig. 6, I exploiting field, 1 active line on the basis of dass II 5 using drawing bucket shovelman's skill to boost extraction
The one width dass VI 9 concordant with dass III 6；
G. the one width dass VII 10 of extraction as shown in fig. 7, II exploiting field, 2 active line is boosted on the basis of dass IV 7,
Dass VII 10 and the perforation of dass VI 9 are completed right-angle steering block transition and are connected；
H. and so on, repeat the above steps d, e, f, g are constantly promoted using the propulsion mode for being segmented-taking a step, until complete
At the propulsion in entire I exploiting field 1.
For the ease of drawing the shovel construction that struggles against, reduction to draw the movement of bucket shovel, as a further improvement of the present invention, such as Fig. 8
Shown, the mode of one width dass I 4 of extraction is promoted in the step b to be pushed away to the left from I exploiting field, 1 active line medial section
Into mode；In the step c promote extraction one width dass II 5 mode be from I exploiting field, 1 active line medial section to the right
The mode just promoted；In the step d promote extraction one width dass III 6 mode be from active line medial section to the left
The mode of propulsion；In the step f promote extraction one width and dass VI 9 mode be from active line medial section to the right
The mode of propulsion.
In order to further be convenient for the movement for drawing the construction of bucket shovel, reduction to draw bucket shovel, as a further improvement of the present invention,
As shown in figure 8, the mode for promoting one width dass IV 7 of extraction in the step d is the mode promoted from up to down；Described
It is the mode of bottom-up propulsion that the mode for producing a width dass V 8 is promoted in step e；Extraction is promoted in the step g
The mode of one width dass VII 10 is the mode of bottom-up propulsion.
This open coal mine draws bucket shovel active line segmentation alternative expression exploiting field forward method to turn to using " active line segmentation alternating "
Mode, the dass III 6 in I exploiting field 1 of exploitation is segmented by active line, make I exploiting field, 1 partial region advance to boundary's release it is a large amount of in
Between emptying, the exactly extensive stripping bench in II exploiting field 2 at this time, greatly solve the problems, such as it is insufficient between being emptied during turning to,
It is synchronous with dass III 6 that dass IV 7 is exploited using shovel-truck techmologv, to draw the shovel that struggles against to create subsequent duty face, gram
It has taken equipment halt production caused by dass VI 9, VII 10 digging of dass coincidence and working face connects the problem of interrupting, shoveled drawing bucket
It is not required to stagnantly be transitioned into II exploiting field 2 naturally from I exploiting field 1, ensure that the stabilization of overall throughput and draws bucket shovel equipment utilization
Rate, this open coal mine draw bucket shovel active line segmentation alternative expression exploiting field forward method can be realized in advance release in emptying between, shorten
Interior row's haul distance reduces land seizure, and then reduces and adopt stripping cost, increases economic efficiency, and draws bucket shovel especially suitable for open coal mine
The exploiting field of active line turns to.
Claims (3)
1. a kind of open coal mine draws bucket shovel active line to be segmented alternative expression exploiting field forward method, which is characterized in that respectively by opencut
I exploiting field (1) and the drawing bucket shovel active line of II exploiting field (2) from centre be divided into two sections, according to drawing the shovel job parameter that struggles against to determine I exploiting field
(1) the equal digging bandwidth of two sections, two sections of equal digging bandwidth for determining II exploiting field (2), each segmentation are used as one
Width dass, by being alternately propelled for I exploiting field (1) dass and II exploiting field (2) dass, I exploiting field (1) discharges after exploiting
In largely between emptying, it is basic to guarantee that drawing bucket shovels the working condition during exploiting field turns to by the nearest reversed interior row of II exploiting field (2) overburden
Stablize, realizes the uninterrupted operation that coal working face smoothly connects；
Specifically includes the following steps:
A. using the continous way steering mode for staying the slow side of ditch, I exploiting field (1) is boosted to terminal, is started straight to II exploiting field (2)
During the transition of angle, I exploiting field (1) active line within the scope of the coincidence of I exploiting field (1) and II exploiting field (2) is towards II exploiting field (2)
One end using drawing the reserved mined out ditch of ladder type (3) being arranged in downward direction of bucket shovelman's skill；
B. I exploiting field (1) active line is segmented from centre, and is boosted from the left side in middle position using drawing bucket shovelman's skill
Produce a width dass I (4)；
C. it is boosted from the right side in the middle position of I exploiting field (1) active line using drawing bucket shovelman's skill and produces a width dass II
(5), dass I (4) and dass II (5) penetrate through, and the right end of dass II (5) makes ladder with the mined out ditch of ladder type (3) perforation simultaneously
The mined out ditch of type (3) upwardly extends to form II exploiting field (2) active line；
D. dass I (4) and I exploiting field (1) active line after dass II (5) perforation are segmented from centre again, and from
The left side in middle position using drawing bucket shovelman's skill to boost one width dass III (6) of extraction, while II exploiting field (2) active line to
Extended portion, which is increased the length of a dass and promoted to the right using shovel-truck techmologv, produces a width dass IV (7), and I
It is discharged after dass III (6) exploitation in exploiting field (1) in largely between emptying, II exploiting field (2) overburden is arranged in nearby；
E. II exploiting field (2) active line using drawing bucket shovelman's skill continues that one width of extraction is promoted to adopt to the right on the basis of dass IV (7)
It digs band V (8)；
F. I exploiting field (1) active line is boosted using drawing bucket shovelman's skill on the basis of dass II (5) and produces a width and digging
The concordant dass VI (9) of band III (6)；
G. II exploiting field (2) active line is boosted on the basis of dass IV (7) produces a width dass VII (10), dass VII
(10) right-angle steering block transition is completed with dass VI (9) perforation to connect；
H. and so on, repeat the above steps d, e, f, g are constantly promoted using the propulsion mode for being segmented-taking a step, until completing whole
The propulsion of a I exploiting field (1).
2. open coal mine according to claim 1 draws bucket shovel active line to be segmented alternative expression exploiting field forward method, feature exists
In, in the step b promote extraction one width dass I (4) mode be from I exploiting field (1) active line middle position to the left
The mode of propulsion；The mode that one width dass II (5) of extraction is promoted in the step c is from I exploiting field (1) active line interposition
Set the mode promoted to the right；The mode that one width dass III (6) of extraction is promoted in the step d is from active line interposition
Set the mode promoted to the left；The mode that one width dass VI (9) of extraction is promoted in the step f is from active line interposition
Set the mode promoted to the right.
3. open coal mine according to claim 2 draws bucket shovel active line to be segmented alternative expression exploiting field forward method, feature exists
In promoting the mode of one width dass IV (7) of extraction in the step d is the mode promoted from up to down；The step e
The middle mode for promoting one width dass V (8) of extraction is the mode of bottom-up propulsion；One width of extraction is promoted in the step g
The mode of dass VII (10) is the mode of bottom-up propulsion.
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| 黑岱沟露天煤矿转向期间内排均衡性研究;张维世;《煤矿安全》;20131220;第44卷(第12期);第36-39页 * |
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