CN105545310A - Coal mining method utilizing dragline cycle operation - Google Patents
Coal mining method utilizing dragline cycle operation Download PDFInfo
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- CN105545310A CN105545310A CN201510943623.7A CN201510943623A CN105545310A CN 105545310 A CN105545310 A CN 105545310A CN 201510943623 A CN201510943623 A CN 201510943623A CN 105545310 A CN105545310 A CN 105545310A
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- mining area
- coal
- mining
- suspension bucket
- bucket shovel
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a coal mining method utilizing dragline cycle operation. The method comprises 1, arranging a first mining area and a second mining area, 2, arranging a first channel and a second channel, 3, carrying out backcast stripping on the first mining area and the second mining area through a dragline until a coal bed is exposed, and mining the coal bed in the first mining area and the second mining area through a coal mining machine, and 4, repeating the process 3 until a coal mining process is finished. The method reasonably designs a dragline walking route, solves problems of poor dragline manoeuvreability and circulation in a middle coal transport ditch, reduces dragline walking time so that the dragline does not influence open pit coal mine normal production in walking, realizes simultaneous coal mining in coal mining zones at two sides and improves coal mining efficiency.
Description
Technical field
The present invention relates to technical field of coal exploitation, particularly relate to a kind of coal-mining method adopting suspension bucket to shovel cycle operation.
Background technology
Suspension bucket is slide tackled and is piled the strip mining transformation technique that stripping technology is a kind of advanced person, its centralized procurement pick, transport and casting three operations are in one, direct for overburden casting is dumped in outdoor internal dumping, there is the distinguishing features such as number of devices is few, unit bucket capacity efficiency is high, stripping cost is low, production capacity large, production reliability is high.Pinpoint blasting technology is used for suspension bucket and slide tackles heap stripping technology, the overburden of 20%-50% is directly thrown into goaf, thus improves charge stripping efficiency further, significantly reduces and peels off cost.
But suspension bucket shovel is when the exploiting field that the discrepancy in elevation is large is moved, and its maneuverability is poor, and travel time is longer, have impact on the normal production in colliery in travel time.
Summary of the invention
The object of the invention is to overcome defect of the prior art, provide a kind of and adopt the cycle operation of suspension bucket shovel to carry out the coal-mining method of mining.
Technical solution of the present invention provides a kind of coal-mining method adopting suspension bucket to shovel cycle operation, comprises the steps:
Step 1: arrange the first mining area and the second mining area, and between described first mining area and described second mining area, be furnished with middle part fortune coal ditch;
Described first mining area is the first initiating terminal side of mining area away from the side of described second mining area, and described first mining area is the first clearing end side of mining area near the side of described second mining area; Described second mining area is the second initiating terminal side of mining area away from the side of described first mining area, and described second mining area is the second clearing end side of mining area near the side of described first mining area;
A step 2: arrange that is communicated with the first passage that described first mining area's initiating terminal helps to transport with described middle part coal ditch; Arrange that is communicated with the second channel that described second mining area's initiating terminal helps to transport with described middle part coal ditch;
Step 3: adopt suspension bucket shovel to carry out backcast stripping until expose coal seam to described first mining area and described second mining area, adopt coal-winning machine to exploit the coal seam in described first mining area and described second mining area;
Wherein, when described suspension bucket shovel carries out backcast stripping to described first mining area, described coal-winning machine is mined in described second mining area, and when described suspension bucket shovel carries out backcast stripping to described second mining area, described coal-winning machine is mined in described first mining area;
Described suspension bucket shovel helps overburden operation from described first initiating terminal side of mining area towards first mining area's clearing end in described first mining area;
Described suspension bucket shovel helps overburden operation from described second initiating terminal side of mining area towards second mining area's clearing end in described second mining area;
When described coal-winning machine is mined complete in described second mining area, and described suspension bucket shovel to described first mining area peel off complete after, described suspension bucket shovel enters in described second mining area through the first clearing end side of mining area, middle part fortune coal ditch, second channel and the second initiating terminal side of mining area successively and carries out backcast stripping;
When described coal-winning machine is mined complete in described first mining area, and described suspension bucket shovel to described second mining area peel off complete after, described suspension bucket shovel enters in described first mining area through the second clearing end side of mining area, middle part fortune coal ditch, first passage and the first initiating terminal side of mining area successively and carries out backcast stripping;
Step 4: repeat described step 3, until exploit complete.
Further, in described step 3, also 31 are comprised the steps:
Before described suspension bucket shovel carries out backcast stripping to described first mining area or described second mining area, adopt the bottom lithosphere of pinpoint blasting technique to described first mining area or described second mining area to carry out explosion, and be that standing platform built by described suspension bucket shovel by bulldozer.
Further, in described step 2, also 21 are comprised the steps:
Described first passage and described second channel are relatively arranged in the both sides of described middle part fortune coal ditch.
Further, in described step 2, also 22 are comprised the steps:
Between described middle part fortune coal ditch and described first mining area's clearing end are helped, build the first intermediate axle, between described middle part fortune coal ditch and described second mining area's clearing end are helped, build the second intermediate axle.
Further, in described step 22, also 221 are comprised the steps:
Described first intermediate axle and described second intermediate axle are relatively arranged in the both sides of described middle part fortune coal ditch.
Further, in described step 2, also 23 are comprised the steps:
Between described first passage and described first mining area's initiating terminal are helped, build the 3rd intermediate axle, between described second channel and described second mining area's initiating terminal are helped, build the 4th intermediate axle.
Further, when described coal-winning machine is mined complete in described second mining area, and described suspension bucket shovel to described first mining area peel off complete after, described suspension bucket shovel enters in the second mining area along the first path;
Described first path comprises the first clearing end side of mining area, the first intermediate axle, middle part fortune coal ditch, second channel, the 4th intermediate axle and the second initiating terminal side of mining area that are communicated with successively;
When described coal-winning machine is mined complete in described first mining area, and described suspension bucket shovel to described second mining area peel off complete after, described suspension bucket shovel enters in the first mining area along the second path;
Described second path comprises the second clearing end side of mining area, the second intermediate axle, middle part fortune coal ditch, first passage, the 3rd intermediate axle and the first initiating terminal side of mining area that are communicated with successively.
Further, described first path and described second Path Connection form " 8 " font.
Further, when described coal-winning machine is mined complete in described second mining area, described suspension bucket shovel is peeled off also synchronously complete to described first mining area;
When described coal-winning machine is mined complete in described first mining area, and described suspension bucket shovel is peeled off also synchronously complete to described second mining area.
Further, also comprise the steps: in described step 1
Internal dumping is arranged in described first mining area and described second mining area;
In described step 31, described bulldozer adopts the mode retrodicted to retrodict in described internal dumping by the overburden that explosion produces, for described standing platform built by described suspension bucket shovel;
In described step 3, overburden is peeled off and enters in described internal dumping by described suspension bucket shovel.
Adopt technique scheme, there is following beneficial effect:
The track route of appropriate design suspension bucket shovel, solve suspension bucket shovel at maneuverability difference and the circulatory problems under the fortune coal ditch condition of middle part, reduce the travel time of suspension bucket shovel simultaneously, make it in travel time, not affect the normal production of open coal mine, and can mine to both sides mining area, improve coal mining efficiency. simultaneously
Accompanying drawing explanation
Fig. 1 is the first mining area, the second mining area, middle part fortune coal ditch, first passage and second channel layout schematic diagram;
Fig. 2 is the first path of suspension bucket shovel walking and the schematic diagram in the second path.
The Reference numeral table of comparisons:
1-first exploiting field; 2-second exploiting field; Coal ditch is transported in the middle part of 3-;
4-first passage; 5-second channel; 6-first intermediate axle;
7-second intermediate axle; 8-the 3rd intermediate axle; 9-the 4th intermediate axle;
10-suspension bucket shovels; Initiating terminal side of 11-first mining area;
Clearing end side of 12-first mining area; 13-coal-winning machine; 14-internal dumping;
15-first path; 16-second path;
Initiating terminal side of 17-second mining area; Clearing end side of 18-second mining area.
Detailed description of the invention
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.The identical Reference numeral of wherein identical component represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric center respectively.
As shown in Figure 1-2, a kind of coal-mining method adopting suspension bucket to shovel cycle operation that one embodiment of the invention provides, comprises the steps:
Step 1: arrange the first mining area 1 and the second mining area 2, and between the first mining area 1 and the second mining area 2, be furnished with middle part fortune coal ditch 3.
Wherein, the first mining area 1 is first the 11, first mining area 1 of initiating terminal side of mining area away from the side of the second mining area 2 is the first clearing end side of mining area 12 near the side of the second mining area 2; Second mining area 2 is second the 17, second mining area 2 of initiating terminal side of mining area away from the side of the first mining area 1 is the second clearing end side of mining area 18 near the side of the first mining area.
Step 2: arrange that the first passage 4 of coal ditch 3 is transported at an initiating terminal side of connection first mining area 11 and middle part; Arrange that the second channel 5 of coal ditch 3 is transported at an initiating terminal side of connection second mining area 17 and middle part.
Step 3: adopt suspension bucket shovel 10 to carry out backcast stripping until expose coal seam to the first mining area 1 and the second mining area 2, adopt coal-winning machine 13 to exploit the coal seam in the first mining area 1 and the second mining area 2.
Wherein, when suspension bucket shovel 10 carries out backcast stripping to the first mining area 1, coal-winning machine 13 is mined in the second mining area 2, and when suspension bucket shovel 10 carries out backcast stripping to the second mining area 2, coal-winning machine 13 is mined in the first mining area 1.
Suspension bucket shovel 10 helps 12 overburden operations from the first initiating terminal side of mining area 11 towards first mining area's clearing end in the first mining area 1.
Suspension bucket shovel 10 helps 18 overburden operations from the second initiating terminal side of mining area 17 towards second mining area's clearing end in the second mining area 2;
When coal-winning machine 13 is mined complete in the second mining area 2, and suspension bucket shovel 10 to the first mining area 1 peel off complete after, suspension bucket shovel 10 enters in the second mining area 2 through the first mining area clearing end side 12, middle part fortune coal ditch 3, second channel 5 and the second initiating terminal side of mining area 17 successively and carries out backcast stripping.
When coal-winning machine 13 is mined complete in the first mining area 1, and suspension bucket shovel 10 to the second mining area 2 peel off complete after, suspension bucket shovel 10 enters in the first mining area 1 through the second mining area clearing end side 18, middle part fortune coal ditch 3, first passage 4 and the first initiating terminal side of mining area 11 successively and carries out backcast stripping;
Step 4: repeated execution of steps 3, until exploit complete.
That is to say, this coal-mining method, adopt the mode of suspension bucket shovel 10 cycle operations between both banks to exploit.
When suspension bucket shovel 10 carries out backcast stripping operation in the first mining area 1, coal-winning machine 13 is mined in the second mining area 2, and when suspension bucket shovel 10 carries out backcast stripping in the second mining area 2, coal-winning machine 13 is mined in the first mining area 1.Both hocket, and do not affect mutual operation.
When coal-winning machine 13 is when mining to the first mining area 1 and the second mining area 2, coal is transported coal ditch 3 by truck by middle part and is transported.
And, when coal-winning machine 13 is mined complete in the second mining area 2, suspension bucket shovel 10 to the first mining area 1 peel off complete after, suspension bucket shovel 10 enters in the second mining area 2 through the first mining area clearing end side 12, middle part fortune coal ditch 3, second channel 5 and the second initiating terminal side of mining area 17 and carries out backcast stripping.
When coal-winning machine 13 is mined complete in the first mining area 1, suspension bucket shovel 10 to the second mining area 2 peel off complete after, suspension bucket shovel 10 enters in the first mining area 1 through the second mining area clearing end side 18, middle part fortune coal ditch 3, first passage 4 and the first initiating terminal side of mining area 11 and carries out backcast stripping.
In exploiting field and the height fall of adjacent territories often reach more than 30 meters, and suspension bucket shovel when the exploiting field that the discrepancy in elevation is large is moved, its maneuverability is poor, and travel time is longer, have impact on the normal production in colliery in travel time.
By setting like this, the track route of appropriate design suspension bucket shovel 10, solve suspension bucket shovel 10 at maneuverability difference and the circulatory problems under fortune coal ditch 3 condition of middle part, reduce the travel time of suspension bucket shovel 10 simultaneously, make it in travel time, not affect the normal production of open coal mine, and can mine to both sides mining area, improve coal mining efficiency. simultaneously
In order to overcome suspension bucket shovel when the exploiting field that the discrepancy in elevation is large is moved, the defect of its maneuverability difference, ramp is built for suspension bucket shovel 10 walking in the region in the first mining area 1 and the second mining area 2 with drop.
Preferably, also 31 are comprised the steps in step 3:
Before suspension bucket shovel 10 carries out backcast stripping to the first mining area 1 or the second mining area 2, adopt the bottom lithosphere of pinpoint blasting technique to the first mining area 1 or the second mining area 2 to carry out explosion, and be that standing platform built by suspension bucket shovel by bulldozer.
Top, coal seam comprises and comprises top loess formation, middle part loess and middle part lithosphere and bottom lithosphere from top to bottom successively
Coal-mining method provided by the invention, adopts the continuous mining technology of wheel excavator-ribbon conveyer-dumping plough to top loess; Monobucket-truck production practice is adopted to middle part loess and middle part lithosphere; Pinpoint blasting-suspension bucket heap of slide tackling is adopted to peel away excavating technology to bottom lithosphere; Monobucket-truck-floor crushing station-rubber conveyer semi-continuousmining technology is adopted to coal seam.It greatly improves coal mining efficiency.
Preferably, as shown in Figure 1, also 21 are comprised the steps in step 2:
First passage 4 and second channel 5 are relatively arranged in the both sides of middle part fortune coal ditch 3, are convenient to suspension bucket shovel 10 circulation walking, shorten its track route.
Preferably, also 22 are comprised the steps in step 2:
The first intermediate axle 6 is built between middle part fortune coal ditch 3 and first mining area's clearing end help 12, between middle part fortune coal ditch 3 and second mining area's clearing end help 18, build the second intermediate axle 7, be convenient to suspension bucket shovel 10 and help 18 to enter in middle part fortune coal ditch 3 from the first clearing end side of mining area 12 or second mining area's clearing end.
Suspension bucket shovel 10, when the first initiating terminal side of mining area of clearing end side 12, second of mining area of initiating terminal side 11, first of mining area 17 and second mining area's clearing end help 18 operation, can form overburden step.Overburden step passes to assigned address and height towards middle part fortune coal ditch 3 by bulldozer, just intermediate axle.
Preferably, as shown in Figure 1, also 221 are comprised the steps in step 22:
First intermediate axle 6 and the second intermediate axle 7 are relatively arranged in the both sides of middle part fortune coal ditch 3, are convenient to suspension bucket shovel 10 circulation walking, shorten its track route.
Preferably, as shown in Figure 1, between first passage 4 and first mining area's initiating terminal help 11, build the 3rd intermediate axle 8, between second channel 5 and second mining area's initiating terminal help 17, build the 4th intermediate axle 9.Being convenient to suspension bucket shovel 10 enters in the first mining area 1 from first passage 4, enters in the second mining area 2 from second channel 5.
Preferably, as shown in Figure 1-2, when coal-winning machine 13 is mined complete in the second mining area 2, and suspension bucket shovel 10 to the first mining area 1 peel off complete after, suspension bucket shovel 10 enters in the second mining area 2 along the first path 15.
First path 15 comprises first clearing end side of mining area the 12, first intermediate axle 6, middle part fortune coal ditch 3, second channel 5, the 4th intermediate axle 9 and the second initiating terminal side of mining area 17 that are communicated with successively.
When coal-winning machine 13 is mined complete in the first mining area 1, and suspension bucket shovel 10 to the second mining area 2 peel off complete after, suspension bucket shovel 10 enters in the first mining area 1 along the second path 16.
Second path 16 comprises second clearing end side of mining area the 18, second intermediate axle 7, middle part fortune coal ditch 3, first passage 4, the 3rd intermediate axle 8 and the first initiating terminal side of mining area 11 that are communicated with successively.
In the manner described above, suspension bucket shovel 10 first carries out strip operation according to the direction from the first clearing end side of mining area of initiating terminal side 11 to the first of mining area 12 in the first mining area 1, when its march to first mining area's clearing end help 12 time, and when coal-winning machine 13 is mined complete in the second mining area 2, it enters in the second mining area 2 along the first path 15 and carries out overburden operation.
Afterwards, coal-winning machine 13 is mined in the first mining area 1, suspension bucket shovel 10 first carries out strip operation according to the direction from the second clearing end side of mining area of initiating terminal side 17 to the second of mining area 18 in the second mining area 2, when its march to second mining area's clearing end help 18 time, and when coal-winning machine 13 is mined complete in the first mining area 1, it enters in the first mining area 1 along the second path 16 and carries out overburden operation.Cycle operation successively, until complete seam mining, improves coal mining efficiency.
Preferably, the first path 15 and the second path 16 are connected to form " 8 " font.That is to say, suspension bucket shovel 10 is from being connected with the second path 16 in the first path 15 with the mobile alignment in the second mining area 2 in the first mining area 1, and in " 8 " font, reasonably arrange the mobile alignment of suspension bucket shovel 10, be convenient to suspension bucket shovel 10 and get around obstruction and move in rugged exploiting field.
Preferably, when coal-winning machine 13 is mined complete in the second mining area 2, suspension bucket shovel 10 is peeled off also synchronously complete to the first mining area 1.
When coal-winning machine 13 is mined complete in the first mining area 1, and suspension bucket shovel 10 is peeled off also synchronously complete to the second mining area 2.Both synchronization jobs, ensure that the continuity of cycle operation, improve coal mining efficiency.
Preferably, as shown in Figure 1, in the first mining area 1 and the second mining area 2, internal dumping 14 is arranged;
In step 31, bulldozer adopts the mode retrodicted to retrodict in internal dumping 14 by the overburden that explosion produces, for standing platform built by suspension bucket shovel 10.
In step 3, overburden is peeled off and is entered in internal dumping by suspension bucket shovel 10.
Employing suspension bucket provided by the invention is adopted to shovel the coal-mining method of cycle operation, by increasing pinpoint blasting-suspension bucket shovel without transport backcast stripping technique, expand the production capacity of open coal mine, coal work line length is increased to 2000m by original 1200m, designed productive capacity is 20Mt/a, has positive effect to coal mining.
As required, above-mentioned each technical scheme can be combined, to reach best-of-breed technology effect.
Above-described is only principle of the present invention and preferred embodiment.It should be pointed out that for the person of ordinary skill of the art, on the basis of the principle of the invention, other modification some can also be made, also should be considered as protection scope of the present invention.
Claims (10)
1. adopt suspension bucket to shovel a coal-mining method for cycle operation, it is characterized in that, comprise the steps:
Step 1: arrange the first mining area and the second mining area, and between described first mining area and described second mining area, be furnished with middle part fortune coal ditch;
Described first mining area is the first initiating terminal side of mining area away from the side of described second mining area, and described first mining area is the first clearing end side of mining area near the side of described second mining area; Described second mining area is the second initiating terminal side of mining area away from the side of described first mining area, and described second mining area is the second clearing end side of mining area near the side of described first mining area;
A step 2: arrange that is communicated with the first passage that described first mining area's initiating terminal helps to transport with described middle part coal ditch; Arrange that is communicated with the second channel that described second mining area's initiating terminal helps to transport with described middle part coal ditch;
Step 3: adopt suspension bucket shovel to carry out backcast stripping until expose coal seam to described first mining area and described second mining area, adopt coal-winning machine to exploit the coal seam in described first mining area and described second mining area;
Wherein, when described suspension bucket shovel carries out backcast stripping to described first mining area, described coal-winning machine is mined in described second mining area, and when described suspension bucket shovel carries out backcast stripping to described second mining area, described coal-winning machine is mined in described first mining area;
Described suspension bucket shovel helps overburden operation from described first initiating terminal side of mining area towards first mining area's clearing end in described first mining area;
Described suspension bucket shovel helps overburden operation from described second initiating terminal side of mining area towards second mining area's clearing end in described second mining area;
When described coal-winning machine is mined complete in described second mining area, and described suspension bucket shovel to described first mining area peel off complete after, described suspension bucket shovel enters in described second mining area through the first clearing end side of mining area, middle part fortune coal ditch, second channel and the second initiating terminal side of mining area successively and carries out backcast stripping;
When described coal-winning machine is mined complete in described first mining area, and described suspension bucket shovel to described second mining area peel off complete after, described suspension bucket shovel enters in described first mining area through the second clearing end side of mining area, middle part fortune coal ditch, first passage and the first initiating terminal side of mining area successively and carries out backcast stripping;
Step 4: repeat described step 3, until exploit complete.
2. coal-mining method according to claim 1, is characterized in that, in described step 3, also comprise the steps 31:
Before described suspension bucket shovel carries out backcast stripping to described first mining area or described second mining area, adopt the bottom lithosphere of pinpoint blasting technique to described first mining area or described second mining area to carry out explosion, and be that standing platform built by described suspension bucket shovel by bulldozer.
3. coal-mining method according to claim 1 and 2, is characterized in that, in described step 2, also comprise the steps 21:
Described first passage and described second channel are relatively arranged in the both sides of described middle part fortune coal ditch.
4. coal-mining method according to claim 3, is characterized in that, in described step 2, also comprise the steps 22:
Between described middle part fortune coal ditch and described first mining area's clearing end are helped, build the first intermediate axle, between described middle part fortune coal ditch and described second mining area's clearing end are helped, build the second intermediate axle.
5. coal-mining method according to claim 4, is characterized in that, in described step 22, also comprise the steps 221:
Described first intermediate axle and described second intermediate axle are relatively arranged in the both sides of described middle part fortune coal ditch.
6. coal-mining method according to claim 5, is characterized in that, in described step 2, also comprise the steps 23:
Between described first passage and described first mining area's initiating terminal are helped, build the 3rd intermediate axle, between described second channel and described second mining area's initiating terminal are helped, build the 4th intermediate axle.
7. coal-mining method according to claim 6, it is characterized in that, when described coal-winning machine is mined complete in described second mining area, and described suspension bucket shovel to described first mining area peel off complete after, described suspension bucket shovel enters in the second mining area along the first path;
Described first path comprises the first clearing end side of mining area, the first intermediate axle, middle part fortune coal ditch, second channel, the 4th intermediate axle and the second initiating terminal side of mining area that are communicated with successively;
When described coal-winning machine is mined complete in described first mining area, and described suspension bucket shovel to described second mining area peel off complete after, described suspension bucket shovel enters in the first mining area along the second path;
Described second path comprises the second clearing end side of mining area, the second intermediate axle, middle part fortune coal ditch, first passage, the 3rd intermediate axle and the first initiating terminal side of mining area that are communicated with successively.
8. coal-mining method according to claim 7, is characterized in that, described first path and described second Path Connection form " 8 " font.
9. the coal-mining method according to claim 1 or 7 or 8, is characterized in that, when described coal-winning machine is mined complete in described second mining area, described suspension bucket shovel is peeled off also synchronously complete to described first mining area;
When described coal-winning machine is mined complete in described first mining area, and described suspension bucket shovel is peeled off also synchronously complete to described second mining area.
10. coal-mining method according to claim 2, is characterized in that, also comprises the steps: in described step 1
Internal dumping is arranged in described first mining area and described second mining area;
In described step 31, described bulldozer adopts the mode retrodicted to retrodict in described internal dumping by the overburden that explosion produces, for described standing platform built by described suspension bucket shovel;
In described step 3, overburden is peeled off and enters in described internal dumping by described suspension bucket shovel.
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| CN201510943623.7A CN105545310B (en) | 2015-12-16 | 2015-12-16 | A kind of use suspension bucket shovels the coal-mining method of cycle operation |
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| CN201510943623.7A CN105545310B (en) | 2015-12-16 | 2015-12-16 | A kind of use suspension bucket shovels the coal-mining method of cycle operation |
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Cited By (1)
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| CN113047840A (en) * | 2021-04-27 | 2021-06-29 | 车兆学 | Stripping semi-continuous reverse stacking process for open pit coal mine |
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