CN106948818A - Coal method is put in a kind of many wheel layerings - Google Patents
Coal method is put in a kind of many wheel layerings Download PDFInfo
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- CN106948818A CN106948818A CN201710334178.3A CN201710334178A CN106948818A CN 106948818 A CN106948818 A CN 106948818A CN 201710334178 A CN201710334178 A CN 201710334178A CN 106948818 A CN106948818 A CN 106948818A
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- 239000003245 coal Substances 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000003111 delayed effect Effects 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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Abstract
Coal method is put the invention discloses the layering of wheel more than one kind, is comprised the following steps, step one：Judge coal seam thickness, dirt band number and thickness layer by layer；Step 2：Caving mode is selected according to step one；Step 3：Determine advance of the face degree；Step 4：The specific coal of putting of selection performs parameter.The beneficial effects of the invention are as follows：1st, more particularly suitable caving mode can be selected, so as to ensure uniform, the gentle sinking of coal-rock interface, it is to avoid a large amount of spoils are poured in inside coal body in advance, cause percentage of shale content to raise for different coal and dirt band layer occurrence condition；2nd, drawing coal technology design parameter is combined with caving mode, advance rate, according to selected caving mode and advance rate, a set of optimal drawing coal technology design parameter is selected, to ensure the maximization of top-coal recovery rate.
Description
Technical field
The present invention relates to it is a kind of put coal working face put coal method, more particularly to coal method is put in a kind of many wheel layerings, belongs to coal
Ore deposit production technical field.
Background technology
In the top-coal caving face exploitation of colliery, top-coal recovery rate is that most important two evaluations exploitation effect is good with percentage of shale content
Bad technology, economic indicator, wherein, drawing coal technology design parameter is to influence the key factor of this two indexs, therefore, colliery again
In order to improve top-coal recovery rate, percentage of shale content is reduced, the test of various technological parameters has been carried out.At present, most Coal Exploitations are with single
Many wheel orders caving mode, the caving mode can make coal-rock interface it is uniform, it is gentle sink, it is ensured that the maximum of the rate of recovery
Change.But, found by Field Research, this kind of caving mode can not make the coal seam in colliery used can be according under uniform, gentle
Heavy imagination trail change, it should which, for different condition of coal seam occurrence and dirt band situation, coal side is more reasonably put in selection
Formula, can just make coal-rock interface uniformly, gently sink, it is ensured that the maximization of the rate of recovery.
The content of the invention
In order to overcome drawbacks described above, coal method is put the invention provides the layering of wheel more than one kind, for making coal-rock interface uniform, flat
Slow sinking, it is ensured that higher top-coal recovery rate, lower top coal percentage of shale content.
To achieve these goals, the technical scheme is that：Coal method is put in a kind of many wheel layerings, is comprised the following steps,
Step one：Judge coal seam thickness, dirt band number and thickness layer by layer；
Step 2：Caving mode is selected according to step one；
Step 3：Determine advance of the face degree；
Step 4：The specific coal of putting of selection performs parameter.
Further, as the improvement of above-mentioned technical proposal, the caving mode of the step 2 puts coal for many wheel hierarchical sequences
Mode or/and many wheel layering interval caving modes.
It is preferred that, described many wheel hierarchical sequence caving modes are：With the coal cutting of coal-winning machine, one section of delayed coal-winning machine away from
From rear, being first begin to the first round puts coal, and puts start after the segment distance of coal one the delayed first round the second wheel and put coal, and delayed second wheel puts coal
Start third round after one segment distance and put coal, so circulation is carried out to total wheel number of setting, when last wheel, which puts coal, to be completed, this is put
Coal mode is finished.
It is preferred that, described many wheels layering interval caving mode refers to, force piece is divided into designated groups number first, so
Afterwards with the coal cutting of coal-winning machine, after the delayed segment distance of coal-winning machine one, 1,2 is opened ..., n, the First support of group, current n groups
First support discharge after coal, last support of second support of n groups before opening, so circulation progress to preceding n groups,
Last support of current n groups is discharged after coal, is then turned on n+1, n+2 ..., the First support of n+n pack supports, same circulation
Foregoing caving mode is performed, after all packet supports of working face have performed and put coal, the caving mode is finished.
Further, as the improvement of above-mentioned technical proposal, the coal of putting of step 4 performs parameter and specifically includes and put coal freighter number, put
Coal group number, put coal space-number, top coal caving time, while open coal discharge outlet number.
It is preferred that, the coal freighter number of putting is taken turns for 2 wheels ~ 7.
The beneficial effects of the invention are as follows：
1st, more particularly suitable caving mode can be selected, so as to ensure coal petrography circle for different coal and dirt band layer occurrence condition
Uniform, the gentle sinking in face, it is to avoid a large amount of spoils are poured in inside coal body in advance, cause percentage of shale content to raise.
2nd, drawing coal technology design parameter is combined with caving mode, advance rate, according to selected caving mode and pushing away
Progress, selects a set of optimal drawing coal technology design parameter, to ensure the maximization of top-coal recovery rate.
Brief description of the drawings
Fig. 1 puts coal simplified schematic diagram for fully mechanized coal face.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment 1
As shown in figure 1, coal method is put in a kind of many wheel layerings, working face is disposed with 118 supports, from head 1 to tail 3, frame number point
Not Wei 1#, 2#, 3# ..., 118#, wherein 1# ~ 4# supports do not put coal, and 113# ~ 118# supports do not put coal, and 5# ~ 112# supports put coal,
When putting coal method using many wheel layerings, following steps are substantially carried out,
Step one：According to the propulsion position of working face, coal seam thickness, dirt band number and thickness layer by layer are determined：With reference to log sheet
And visit knowable to the coal borer hole of top, coal seam thickness 15.2m, wherein dirt band 1.96m.Coal seam contains 8 layers of dirt band layer, respectively 2.80m（0.35
m）, 0.95 m（0.25 m）, 3.65 m（0.24 m）, 2.64 m（0.20 m）, 1.88 m（0.28 m）, 2.60 m（0.12
m）, 1.84 m（0.32 m）, 0.80 m（0.20 m）.
Step 2：Select caving mode：The parameter determined according to step one, working face puts coal side using many wheel layering intervals
Formula.
Step 3：Determine advance of the face degree：Required according to the working face daily output, determine that coal-winning machine 2 cuts a knife coal and put
The total time of one knife coal is 3h.
Step 4：The advance rate requirement that the caving mode determined according to step 2 is determined with step 3, selection is specifically put
Coal performs parameter.Force piece is divided into 11 groups first, preceding 10 groups of every group of 10 framves, last group is 8 framves, with coal-winning machine 2
Coal cutting, after the delayed frame of coal-winning machine 5, start to put coal, first turn on first four groups of first support, that is, open 112#, 102#,
92# and 82# supports, the top coal caving time of every support is 1.96min, puts after coal terminates, is then turned on 111#, 101#, 91# and 81#
Support, is so repeated, and current four groups of all supports are put after coal terminates, and are then turned on the 5th group, the 6th group, the 7th group and the 8th
The support of group puts coal, and it is the same to put the same four groups of coal method, and so circulation is repeated down, and 174.6min need to be taken altogether, will be complete
Coal work is put into all packet supports of working face.
Will be late by coal-winning machine safe distance and float time 5.4min take into account after, need altogether 3h complete one circulation
Mine and top coal caving time.
Many wheels layering of the application is put coal method and can selected more particularly suitable for different coal and dirt band layer occurrence condition
Caving mode, so as to ensure uniform, the gentle sinking of coal-rock interface, it is to avoid a large amount of spoils are poured in inside coal body in advance, cause to contain
Cash rate is raised.
Drawing coal technology design parameter is combined with caving mode, advance rate in addition, according to selected caving mode and
Advance rate, selects a set of optimal drawing coal technology design parameter, to ensure the maximization of top-coal recovery rate.
Technical scheme is not limited to the limitation of above-mentioned specific embodiment, and every technique according to the invention scheme is done
The technology deformation gone out, each falls within protection scope of the present invention.
Claims (6)
1. coal method is put in a kind of many wheel layerings, it is characterised in that：Comprise the following steps,
Step one：Judge coal seam thickness, dirt band number and thickness layer by layer；
Step 2：Caving mode is selected according to step one；
Step 3：Determine advance of the face degree；
Step 4：The specific coal of putting of selection performs parameter.
2. coal method is put in a kind of many wheel layerings according to claim 1, it is characterised in that：The caving mode of the step 2 is
Many wheel hierarchical sequence caving modes or many wheel layering interval caving modes.
3. coal method is put in a kind of many wheel layerings according to claim 2, it is characterised in that：Described many wheel hierarchical sequences put coal
Mode is：With the coal cutting of coal-winning machine, after the delayed segment distance of coal-winning machine one, being first begin to the first round puts coal, and the delayed first round puts
Start the second wheel after the segment distance of coal one and put coal, delayed second wheel, which to be put, start after the segment distance of coal one third round and put coal, so circulate into
Row is to total wheel number of setting, and when last wheel, which puts coal, to be completed, the caving mode is finished.
4. coal method is put in a kind of many wheel layerings according to claim 2, it is characterised in that：Put coal in described many wheels layering interval
Mode refers to, force piece is divided into designated groups number first, then as the coal cutting of coal-winning machine, one section of delayed coal-winning machine away from
From rear, 1,2 is opened ..., n, the First support of group, the First support of current n groups is discharged after coal, the second of n groups before opening
Platform support, so circulation are carried out to last support of preceding n groups, and last support of current n groups is discharged after coal, is then turned on
N+1, n+2 ..., the First support of n+n pack supports, same circulation perform foregoing caving mode, treat all packets of working face
Support, which has been performed, to be put after coal, and the caving mode is finished.
5. coal method is put in a kind of many wheel layerings according to claim 1, it is characterised in that：The coal of putting of step 4 performs parameter tool
Body includes putting coal freighter number, puts coal group number, puts coal space-number, top coal caving time, while the coal discharge outlet number opened.
6. coal method is put in a kind of many wheel layerings according to claim 5, it is characterised in that：The coal freighter number of putting is taken turns for 2 wheels ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710334178.3A CN106948818A (en) | 2017-05-12 | 2017-05-12 | Coal method is put in a kind of many wheel layerings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710334178.3A CN106948818A (en) | 2017-05-12 | 2017-05-12 | Coal method is put in a kind of many wheel layerings |
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| CN201710334178.3A Pending CN106948818A (en) | 2017-05-12 | 2017-05-12 | Coal method is put in a kind of many wheel layerings |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915144A (en) * | 2019-04-17 | 2019-06-21 | 中国矿业大学 | A kind of high inclination-angle split coal is comprehensive to put and turns fully mechanized mining and continuously promote recovery method |
| CN110630263A (en) * | 2018-08-29 | 2019-12-31 | 中国矿业大学 | Layered mining method for huge thick coal seam with middle gangue layer |
| CN111255519A (en) * | 2020-02-20 | 2020-06-09 | 郑州普泽能源科技有限公司 | Coal cutter pushing progress statistical method |
| CN112558577A (en) * | 2021-02-19 | 2021-03-26 | 天津美腾科技股份有限公司 | Caving coal control method, device, electronic equipment and computer readable storage medium |
| CN117167012A (en) * | 2023-11-03 | 2023-12-05 | 中国矿业大学(北京) | Multi-wheel reverse sequence coal caving process for horizontal sectional fully-mechanized caving mining of steeply inclined coal seam |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630263A (en) * | 2018-08-29 | 2019-12-31 | 中国矿业大学 | Layered mining method for huge thick coal seam with middle gangue layer |
| CN109915144A (en) * | 2019-04-17 | 2019-06-21 | 中国矿业大学 | A kind of high inclination-angle split coal is comprehensive to put and turns fully mechanized mining and continuously promote recovery method |
| CN109915144B (en) * | 2019-04-17 | 2020-04-28 | 中国矿业大学 | Large-dip-angle branched coal seam fully-mechanized caving-to-fully-mechanized mining continuous propelling mining method |
| CN111255519A (en) * | 2020-02-20 | 2020-06-09 | 郑州普泽能源科技有限公司 | Coal cutter pushing progress statistical method |
| CN111255519B (en) * | 2020-02-20 | 2021-09-28 | 郑州普泽能源科技有限公司 | Coal cutter pushing progress statistical method |
| CN112558577A (en) * | 2021-02-19 | 2021-03-26 | 天津美腾科技股份有限公司 | Caving coal control method, device, electronic equipment and computer readable storage medium |
| CN112558577B (en) * | 2021-02-19 | 2021-06-08 | 天津美腾科技股份有限公司 | Caving coal control method, device, electronic equipment and computer readable storage medium |
| CN117167012A (en) * | 2023-11-03 | 2023-12-05 | 中国矿业大学(北京) | Multi-wheel reverse sequence coal caving process for horizontal sectional fully-mechanized caving mining of steeply inclined coal seam |
| CN117167012B (en) * | 2023-11-03 | 2024-01-23 | 中国矿业大学(北京) | Multi-wheel reverse sequence coal caving process for horizontal sectional fully-mechanized caving mining of steeply inclined coal seam |
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