CN104847360A - Combined step milling method of strip mine semi-continuous system - Google Patents
Combined step milling method of strip mine semi-continuous system Download PDFInfo
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- CN104847360A CN104847360A CN201510198327.9A CN201510198327A CN104847360A CN 104847360 A CN104847360 A CN 104847360A CN 201510198327 A CN201510198327 A CN 201510198327A CN 104847360 A CN104847360 A CN 104847360A
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Abstract
The invention discloses a combined step milling method of a strip mine semi-continuous system. The combined step milling method comprises the following steps that a, a first excavation belt for mining a main mining step is taken as an initial point to mine a first width of the main mining step in the direction of a machine head; b, multiple width mining operations of the main mining step are completed, and a working surface conveying machine is moved; c, movement of the main mining step is completed and excavation of the multiple mining widths is completed, the semi-continuous system is shifted into the first with mining of the next step, and after mining is completed, an excavator continues to carry out notch forming on the next width of the next step, and the next width is excavated; and d, after multiple width mining operations of the next step are completed, the working surface conveying machine is moved. The combined step operation is adopted in the combined step milling method, the exploitable yield of the semi-continuous system within a one-time movement period is effectively increased, the one-time movement service period of the system is prolonged, and therefore the production efficiency of the system is improved.
Description
Technical field
The present invention relates to opencast mining field, particularly the composite bench mining method of the semicontinuous system of a kind of opencut.
Background technology
Current domestic surface mine starts to introduce successively semicontinuous or Total continuity system for mine material handling, and adopts system separate unit rank to exploit, parallel propelling.
When open coal mine base plate inclination angle becomes large, when coal seam is aggravated with base plate deepening, semicontinuous system step of mining divides and operational parameter all will carry out Reasonable adjustment thereupon, and to this, the separate unit rank exploitation method of the semicontinuous system of the existing coal mining of domestic surface mine has the following disadvantages:
(1) apparatus arrangement lacks flexibility;
(2) poor to change (as seat earth inclination angle the becomes large) compliance of geology occurrence condition;
(3) adjustment (as shoulder height uprises) of parameter of digging up mine must coordinate by other production technologies, and system production efficiency reduces.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide the composite bench mining method of the semicontinuous system of a kind of opencut of simple and reasonable steps, the composite bench mining method of the semicontinuous system of this opencut adopts bench group operation, effective increase once moves the adopted amount of establishing semicontinuous system in the cycle, prolongation system is once moved and is established the seeervice cycle, thus improves system production efficiency; Also add system equipment flexible arrangement, the system that improves is to the compliance of geological conditions change, mining parameter adjustment and flexibility.
For achieving the above object, the invention provides the composite bench mining method of the semicontinuous system of opencut, the semicontinuous system of this opencut comprises conveyer, the bench group of this composite bench mining method comprises: master adopts step and lower point of step, this conveyer is arranged in master and adopts step square position, and this composite bench mining method comprises the following steps:
(a), adopt step first width to exploit main first dass of adopting step for initial point to the heading exploitation of described conveyer is main, what after completing, the direct head from described conveyer made next width opens otch, and carries out the operation of next width;
(b), complete main adopt step multiple adopt width operation after, move and establish described conveyer, and carry out moving the digging of establishing rear master to adopt step first width; This moves after the digging of establishing rear master to adopt step first width completes, and carries out moving establishing rear master to adopt opening of next width digging of step to cut, and utilizes and open the working face mining master cutting formation and adopt step and move next width after establishing;
(c), complete main adopt step move establish rear multiple adopt the digging of width after, the first width that semicontinuous system proceeds to down point step is exploited; Adopt rear excavator to continue to divide next width of step to open otch downwards, and to next width digging;
(d), complete down point step multiple adopt width operation after working face conveyor move and establish, and carry out moving the digging of establishing rear lower point step first width; After this moves and establishes the digging of rear lower point step first width to complete, carry out moving establish after opening of next width digging cut, and utilize and open the lower point step of the working face mining cutting formation and move next width after establishing;
E (), semicontinuous system have exploited down point last width of step after, equipment is transferred to master and adopts step exploitation, and what utilization was reserved opens otch, carries out leading the exploitation of adopting step first width.
Preferably, in technique scheme, the semicontinuous system of opencut also comprises: excavator, crushing engine and elevating conveyor.
Preferably, in technique scheme, conveyer is ribbon conveyer.
Preferably, in technique scheme, excavator is power shovel, and described crushing engine is automatic moving type crushing engine.
Preferably, in technique scheme, when in step (a), exploitation master adopts step the first width, the material of work plane extraction is directly reprinted to ribbon conveyer by the unloading arm of automatic moving type crushing engine, until adopt position near head station (i.e. the head place of conveyer); When main step first width is adopted near head station, automatic moving type crushing engine is reprinted to working face conveyor by elevating conveyor.
Preferably, in technique scheme, the horizontal mode of adopting in step (c), is adopted to exploit down the first width of point step.
Compared with prior art, the present invention has following beneficial effect: the composite bench mining method of the semicontinuous system of this opencut adopts bench group operation, effective increase once moves the adopted amount of establishing semicontinuous system in the cycle, prolongation system is once moved and is established the seeervice cycle, thus improves system production efficiency; Also add system equipment flexible arrangement, the system that improves is to the compliance of geological conditions change, mining parameter adjustment and flexibility.
Accompanying drawing explanation
Fig. 1 is the bench group schematic diagram of the composite bench mining method of the semicontinuous system of opencut of the present invention;
To be that the exploitation of the composite bench mining method of the semicontinuous system of opencut of the present invention is main adopt step first the first schematic diagram to Fig. 2;
To be that the exploitation of the composite bench mining method of the semicontinuous system of opencut of the present invention is main adopt step first the second schematic diagram to Fig. 3;
Fig. 4 is that main step second width of adopting of the exploitation of the composite bench mining method of the semicontinuous system of opencut of the present invention is opened and cut schematic diagram;
To be that the exploitation of the composite bench mining method of the semicontinuous system of opencut of the present invention is main adopt step second width schematic diagram to Fig. 5;
To be that the exploitation of the composite bench mining method of the semicontinuous system of opencut of the present invention is main adopt step the 3rd width schematic diagram to Fig. 6;
Fig. 7 is that the main stair working face ribbon conveyer of adopting of the exploitation of the composite bench mining method of the semicontinuous system of opencut of the present invention moves and establishes schematic diagram;
Fig. 8 is that moving of the composite bench mining method of the semicontinuous system of opencut of the present invention establishes rear exploitation master to adopt step first width schematic diagram;
Fig. 9 is that moving of the composite bench mining method of the semicontinuous system of opencut of the present invention establishes rear master to adopt step second width to open and cut and exploit schematic diagram;
Figure 10 is that moving of the composite bench mining method of the semicontinuous system of opencut of the present invention establishes rear exploitation master to adopt step the 3rd width schematic diagram;
Figure 11 is that the horizontal mode of adopting of employing of the composite bench mining method of the semicontinuous system of opencut of the present invention exploits down a point step first width schematic diagram;
Figure 12 is lower point of step first width digging operation schematic diagram of the composite bench mining method of the semicontinuous system of opencut of the present invention;
Figure 13 is the exploitation lower point step second width schematic diagram of the composite bench mining method of the semicontinuous system of opencut of the present invention;
Figure 14 is that the exploitation of the composite bench mining method of the semicontinuous system of opencut of the present invention lower point of stair working face ribbon conveyer moves and establish schematic diagram;
Figure 15 is that moving of the composite bench mining method of the semicontinuous system of opencut of the present invention establishes rear exploitation lower point step first width schematic diagram;
Figure 16 is that moving of the composite bench mining method of the semicontinuous system of opencut of the present invention establishes rear lower point step second width to open to cut and exploit schematic diagram;
Figure 17 is the ramp process schematic diagram of the composite bench mining method of the semicontinuous system of opencut of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
Clearly represent unless otherwise other, otherwise in whole manual and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or ingredient, and do not get rid of other element or other ingredient.
Semicontinuous system according to the composite bench mining method of the semicontinuous system of the opencut of the specific embodiment of the invention is made up of main equipments such as power shovel, automatic moving type crushing engine, elevating conveyor, ribbon conveyers.Bench group schematic diagram as shown in Figure 1, carry out in composite bench mining process by this semicontinuous system, and ribbon conveyer is arranged in master and adopts step square position, by the relative position of adjustment power shovel, automatic moving type crushing engine, elevating conveyor, realizes composite bench mining.
The composite bench mining method of the semicontinuous system of this opencut is to exploit main first dass of adopting step for initial point, and a complete exploitation circulation comprises the following steps:
(1), exploitation is main adopts step first width: as shown in Figure 2.From A1 position, to heading (A2 position) exploitation, the material of work plane extraction is directly reprinted to ribbon conveyer by the unloading arm of automatic moving type crushing engine, until adopt position near head station (belt conveyer head).Affect by head station, when main step first width is adopted near head station, automatic moving type crushing engine cannot be reprinted directly to work plane ribbon conveyer, need by elevating conveyor (A type), as shown in Figure 3.
(2), main step second width of adopting is opened and is cut: as shown in Figure 4.Main step first of adopting is adopted after width completes, and whole system is without the need to transfer, and directly from the beginning station place opens otch, and carries out the operation that second adopts width.Finish out otch and namely form the work plane exploiting main step second width.
(3), exploitation is main adopts step second width: as shown in Figure 5.From opening otch to tail direction exploitation about 50m namely to B1 position, now walk around the interference of head station, just the elevating conveyor of work plane (A type) can be moved to other position afterwards, the material of automatic moving type crushing engine can directly unload on work plane ribbon conveyer.Continue digging forward again, until complete master to B2 to adopt step second width digging operation.
(4), exploitation is main adopts step the 3rd width: as shown in Figure 6.Main adopt after the exploitation of step second width terminates, directly near tail station, end opens otch, is coordinated by elevating conveyor, completes main digging of adopting step the 3rd width.
(5), work plane ribbon conveyer moves and establishes: as shown in Figure 7.Complete and main adopt after three, step adopts width operation, whole system is return near tail station, opens and cuts, and establish work plane ribbon conveyer to reach, approach shift spacing 75m for moving the dass after establishing.
(6), move and establish that rear exploitation is main adopts step first width: as shown in Figure 8.After ribbon conveyer moves and establishes, power shovel from formed open otch carry out moving the digging of establishing rear master to adopt step first width.Unloading arm due to now automatic moving type crushing engine can meet the needs to ribbon conveyer unloading, therefore wouldn't use elevating conveyor (A type).
(7), move and establish rear master to adopt step second width to open and cut and exploit: as shown in Figure 9.Identical with during (2) step, when the exploitation of semicontinuous system is near head station, exploit step near the east by elevating conveyor (A type), and carry out moving and establish rear second opening of width digging to cut.Open and cut after operation completes, utilize the work plane opened and cut formation to advance to direction, tail station the main step of adopting of exploitation to move and establish rear second width.
(8), move and establish that rear exploitation is main adopts step the 3rd width: as shown in Figure 10.Identical with (4) step, main adopt after step moves and establish rear second width exploitation to terminate, system directly turn around exploitation move establish after the 3rd width.Complete after moving and establishing rear three width diggings, system detours from tail station and proceeds to a point step exploitation.
(9) the horizontal mode of adopting, is adopted to exploit down point step first width: horizontally to adopt wide dass schematic diagram as shown in figure 11.Main adopt after last width of step exploits boundary, equipment is transferred to down a point step square position along ramp, the digging of point step first width is carried out from pre-prepd otch of opening, in order to reduce equipment contraposition, improve lower point of step mining progress, adopting power shovel to adopt mode around automatic moving type crushing engine 1 is horizontal, is 40-50m by dass width adjustment.Reprint because lower point of step exploitation exists the larger discrepancy in elevation, must could meet the discrepancy in elevation by elevating conveyor 2 (A type) and reprint requirement, therefore all must use elevating conveyor (A type) between the whole lower point of step productive life.Under divide step first width digging operation schematic diagram as Figure 12.
(10), lower point step second width of exploitation: after the first fabric width dass has been adopted, excavator continues point step second width downwards and opens otch, is new dass exploitation preparation face, as shown in figure 13.Complete the digging to the second width subsequently.
(11), work plane ribbon conveyer moves and establishes: as shown in figure 14.Under divide step second width exploit terminate after, establish work plane ribbon conveyer to reach, approach shift spacing 75m.
(12), move and establish rear exploitation lower point step first width: as shown in figure 15.After ribbon conveyer moves and establishes, Semi-continuous Mining System Applicable directly move establish before stop position undertaken falling Cai Kaiqie operation by engineering machinery is auxiliary, be lower point of step exploitation preparation face.Then identical with (9) step, complete and adopt the first fabric width dass is horizontal.
(13), move and establish rear lower point step second width to open to cut and exploit: be identical with (10) step, near semicontinuous system exploitation to head station during position, adjustment elevating conveyor (A type), completes the first width exploitation.Adjustment adjusts elevating conveyor again afterwards, and carrying out opening of the second width and cut operation, is new dass preparation face, as shown in figure 16.Open after cutting into, equipment continues to push ahead the digging that (Q1 to Q2 position) completes down point step second width, and now elevating conveyor need be arranged in down on point step square position.
(14), ramp process: as shown in figure 17.After semicontinuous system has exploited down point last width of step, equipment is transferred to master and adopts step exploitation, and what utilization was reserved opens otch, carries out leading the exploitation of adopting step first width.The main contact ramp adopted between step and lower point step can, according to the needs arranging follow-up in mine, adopt monobucket-truck technique or engineering machinery to process separately in good time.
According to above-mentioned mining sequence, semicontinuous system ribbon conveyer completes to move for twice and establishes, and whole system completes an exploitation circulation, and push ahead 6 dass width in a cycle period, namely working pit edge pushes ahead 150m.
To sum up, the composite bench mining method of the semicontinuous system of this opencut adopts bench group operation, and effective increase once moves the adopted amount of establishing semicontinuous system in the cycle, and prolongation system is once moved and established the seeervice cycle, thus improves system production efficiency; Also add system equipment flexible arrangement, the system that improves is to the compliance of geological conditions change, mining parameter adjustment and flexibility.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (6)
1. the composite bench mining method of the semicontinuous system of opencut, it is characterized in that, the semicontinuous system of this opencut comprises conveyer, the bench group of this composite bench mining method comprises: master adopts step and lower point of step, this conveyer is arranged in master and adopts step square position, and this composite bench mining method comprises the following steps:
(a), adopt step first width to exploit main first dass of adopting step for initial point to the heading exploitation of described conveyer is main, what after completing, the direct head from described conveyer made next width opens otch, and carries out the operation of next width;
(b), complete main adopt step multiple adopt width operation after, move and establish described conveyer, and carry out moving the digging of establishing rear master to adopt step first width; This moves after the digging of establishing rear master to adopt step first width completes, and carries out moving establishing rear master to adopt opening of next width digging of step to cut, and utilizes and open the working face mining master cutting formation and adopt step and move next width after establishing;
(c), complete main adopt step move establish rear multiple adopt the digging of width after, the first width that semicontinuous system proceeds to down point step is exploited; Adopt rear excavator to continue to divide next width of step to open otch downwards, and to next width digging;
(d), complete down point step multiple adopt width operation after working face conveyor move and establish, and carry out moving the digging of establishing rear lower point step first width; After this moves and establishes the digging of rear lower point step first width to complete, carry out moving establish after opening of next width digging cut, and utilize and open the lower point step of the working face mining cutting formation and move next width after establishing;
E (), semicontinuous system have exploited down point last width of step after, equipment is transferred to master and adopts step exploitation, and what utilization was reserved opens otch, carries out leading the exploitation of adopting step first width.
2. the composite bench mining method of the semicontinuous system of opencut according to claim 1, is characterized in that, the semicontinuous system of described opencut also comprises: excavator, crushing engine and elevating conveyor.
3. the composite bench mining method of the semicontinuous system of opencut according to claim 2, is characterized in that, described conveyer is ribbon conveyer.
4. the composite bench mining method of the semicontinuous system of opencut according to claim 2, is characterized in that, described excavator is power shovel, and described crushing engine is automatic moving type crushing engine.
5. the composite bench mining method of the semicontinuous system of opencut according to claim 1, it is characterized in that, when in described step (a), exploitation master adopts step the first width, the material of work plane extraction is directly reprinted to ribbon conveyer by the unloading arm of automatic moving type crushing engine, until adopt position near the head place of described conveyer; When main step first width is adopted near the head of described conveyer, automatic moving type crushing engine is reprinted to working face conveyor by elevating conveyor.
6. the composite bench mining method of the semicontinuous system of opencut according to claim 1, is characterized in that, adopts the horizontal mode of adopting to exploit down the first width of point step in described step (c).
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105626075A (en) * | 2016-02-03 | 2016-06-01 | 长沙有色冶金设计研究院有限公司 | Open-pit mine bench pinch-out treatment method |
| CN107145656A (en) * | 2017-04-18 | 2017-09-08 | 中国矿业大学(北京) | A kind of belt bridge construction design method based on opencut composite bench mining |
| CN108222941A (en) * | 2018-03-19 | 2018-06-29 | 长沙有色冶金设计研究院有限公司 | A kind of opencut continuous exploitation method |
| CN108716402A (en) * | 2018-05-21 | 2018-10-30 | 中国矿业大学 | A kind of Semicontinuous Technology in Surface Coal Mines intermediate axle arrangement |
| CN108946036A (en) * | 2018-08-02 | 2018-12-07 | 中国矿业大学 | A kind of more adhesive tapes of opencut dump system and dump method |
| CN112576255A (en) * | 2020-12-28 | 2021-03-30 | 华能伊敏煤电有限责任公司 | Semi-continuous process combined bench mining method without open cut |
| CN113818884A (en) * | 2021-09-25 | 2021-12-21 | 中煤科工集团沈阳设计研究院有限公司 | Strip-type conveying system for working face of strip mine and sector steering transfer method |
| CN113818885A (en) * | 2021-09-25 | 2021-12-21 | 中煤科工集团沈阳设计研究院有限公司 | Working face device of double-mining equipment and moving method |
| CN113818883A (en) * | 2021-09-25 | 2021-12-21 | 中煤科工集团沈阳设计研究院有限公司 | Strip mine mining working face device and moving method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626075A (en) * | 2016-02-03 | 2016-06-01 | 长沙有色冶金设计研究院有限公司 | Open-pit mine bench pinch-out treatment method |
| CN107145656A (en) * | 2017-04-18 | 2017-09-08 | 中国矿业大学(北京) | A kind of belt bridge construction design method based on opencut composite bench mining |
| CN108222941A (en) * | 2018-03-19 | 2018-06-29 | 长沙有色冶金设计研究院有限公司 | A kind of opencut continuous exploitation method |
| 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 |
| CN108716402A (en) * | 2018-05-21 | 2018-10-30 | 中国矿业大学 | A kind of Semicontinuous Technology in Surface Coal Mines intermediate axle arrangement |
| CN108946036A (en) * | 2018-08-02 | 2018-12-07 | 中国矿业大学 | A kind of more adhesive tapes of opencut dump system and dump method |
| CN112576255A (en) * | 2020-12-28 | 2021-03-30 | 华能伊敏煤电有限责任公司 | Semi-continuous process combined bench mining method without open cut |
| CN113818884A (en) * | 2021-09-25 | 2021-12-21 | 中煤科工集团沈阳设计研究院有限公司 | Strip-type conveying system for working face of strip mine and sector steering transfer method |
| CN113818885A (en) * | 2021-09-25 | 2021-12-21 | 中煤科工集团沈阳设计研究院有限公司 | Working face device of double-mining equipment and moving method |
| CN113818883A (en) * | 2021-09-25 | 2021-12-21 | 中煤科工集团沈阳设计研究院有限公司 | Strip mine mining working face device and moving method thereof |
| CN113818884B (en) * | 2021-09-25 | 2023-09-22 | 中煤科工集团沈阳设计研究院有限公司 | Strip mine working surface belt type conveying system and sector steering and transferring method |
| CN113818883B (en) * | 2021-09-25 | 2023-09-22 | 中煤科工集团沈阳设计研究院有限公司 | Strip mine mining working face device and moving method thereof |
| CN113818885B (en) * | 2021-09-25 | 2023-09-22 | 中煤科工集团沈阳设计研究院有限公司 | Working face device of double mining equipment and moving method |
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