CN109458179A - Down-hole mechanical continuous exploitation method - Google Patents
Down-hole mechanical continuous exploitation method Download PDFInfo
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- CN109458179A CN109458179A CN201910006727.3A CN201910006727A CN109458179A CN 109458179 A CN109458179 A CN 109458179A CN 201910006727 A CN201910006727 A CN 201910006727A CN 109458179 A CN109458179 A CN 109458179A
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 301
- 239000011707 mineral Substances 0.000 claims abstract description 301
- 238000005065 mining Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 239000004615 ingredient Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000009826 distribution Methods 0.000 description 11
- 238000012856 packing Methods 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011234 economic evaluation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- E21C41/16—Methods of underground mining; Layouts therefor
Abstract
The present invention relates to a kind of down-hole mechanical continuous exploitation methods, according to the detection to working face ore body mineral aggregate ingredient, by working face mining mine wall according to mineral aggregate grade grade classification at different layer-shaped areas, working face mining mine wall is laterally divided into one or more active sections again, using drum-type Mars Miner, from the beginning of working face to terminal, active section is exploited one by one when exploitation, by the sequence of mineral aggregate grade grade from high to low, region is exploited one by one in each active section, only retain top the lowest class mineral aggregate and bottom stage in each active section, then Mars Miner returns to beginning from terminal, disposably top the lowest class mineral aggregate and bottom stage are exploited by active section in the process.The present invention realizes the exploitation respectively of different quality mineral aggregates in same working face, and exploitation profit greatly increases, and especially hard and point grade grade material exploitation economy significantly improves.
Description
Technical field
The present invention relates to one kind to fall mine beneficiation method, belongs to continuous exploitation method under mine, can be used for the well of hard material
Lower exploitation.
Background technique
Layer and section exploitation is set forth in strip mining transformation field, mainly for compared with thick deposit, because of different ore bed difference section mines
Item matter differs greatly, and leads to that the mineral aggregate rate of dilution is serious, beneficiating ingredient refines at high cost, exploitation benefit very if unified mixed adopt
Low, different layers difference section distinguishes exploitation and storage refines the benefit that can then greatly increase enterprise.
Existing outdoor layer and section exploitation is mainly complete by the sets of equipment in working face Automobile Transportation such as scraper bowl, scraper etc.
At space is big, easily operated.However under the conditions of long and narrow working face, to realize working face by twin-roll Mars Miner under mine
The continuous exploitation of different grade ore body distributions, will become very difficult.Working face seam distribution is changeable, knot in roof and floor and ore bed
Structure is complicated, realizes that layer and section exploitation more increases difficulty to the continuous mechanized of twin-roll Mars Miner.
Since mineral aggregate grade determines the price of exploitation mineral aggregate, high-quality mineral aggregate and low-quality mineral aggregate have very big profit
Difference, therefore outstanding problem in mine underground mining is had become at present by the way that how existing Mars Miner pursues high-quality mineral aggregate.
Summary of the invention
The present invention is intended to provide a kind of down-hole mechanical continuous exploitation method, can solve the mixing of ore bed difference grade mineral aggregate and leads
The problems such as dilution of cause is serious keeps the original grade of the original grade of different quality mineral aggregates, especially high-grade mineral aggregate, favorably
It is maximized in generating profit.
Main technical schemes of the invention have:
A kind of down-hole mechanical continuous exploitation method, according to the detection to ore body mineral aggregate ingredient, by working face mining mine wall
According to mineral aggregate grade grade classification at different layer-shaped areas, then working face mining mine wall is laterally divided into one or more works
Make section, active section is exploited one by one from the beginning of working face to terminal using drum-type Mars Miner when exploitation, each active section
The interior sequence region exploitation one by one according to mineral aggregate grade grade from high to low.
The method of determination of the region and active section is preferred are as follows: according to the difference of mineral aggregate grade grade, in working face mining
The original block for representing position and area occupied by the mineral aggregate of each mineral aggregate grade grade is indicated on mine wall, is opened with the working face
The vertical boundary of original block corresponding to the mineral aggregate of highest mineral aggregate grade grade is that identification of boundaries goes out several originals in mining wall
Beginning section,
Step 1) determines the grade that is dominant in each original section: the highest mineral aggregate for the mineral aggregate that can be adopted in each original section of assessment
Grade grade, using the highest mineral aggregate grade grade as the grade that is dominant in the original section；
Step 2) determines the region: in each original section, when there are the originals that mineral aggregate grade grade is higher than the grade that is dominant
When beginning block, by such original block be incorporated to mineral aggregate grade grade be equal to be dominant in the original block of grade；
The merging in the original section of step 3): the grade that is dominant in the original section of each adjacent two, the two it is identical or the former
Be dominant grade higher than the latter and in the former containing its mineral aggregate grade grade original block identical with the grade that is dominant of the latter, then
The two original sections are merged into one, same original section is allowed to participate in the merging for repeatedly meeting above-mentioned rule, wherein before
The beginning and terminal of person and the latter respectively close to working face；
Step 4) determines the active section: using each section for obtaining after step 3) union operation as each work
Make section.
Mars Miner from beginning into terminal recovery process, at least for wherein corresponding to different mineral aggregate grades etc. containing multiple
The active section in the region of grade retains top the lowest class mineral aggregate and bottom stage, is left to end of the Mars Miner from the working face
Disposable active section one by one is exploited during end is back to beginning.
The beneficial effects of the present invention are:
The present invention realizes falling respectively for same working face difference quality mineral aggregate by the production practice of execution layer and section
Mine can be well solved the problems such as dilution caused by ore bed difference grade mineral aggregate mixes is serious, be the profit margin of underground mining
Provide the approach of practicable.
The present invention is cooperated by the front and back of layer and section production practice and low product process for stoping, so that because low in recovery process
The influence of grade mineral aggregate being mixed into the quality of high-grade mineral aggregate further decreases, and is conducive to the economic effect for further increasing exploitation
Benefit.
The present invention is proposed by the analysis to institute's working seam characteristic, winning apparatus parameter according to mineral aggregate grade grade
To the method that working face mining mine wall carries out section partition, the NATURAL DISTRIBUTION feature for the mineral aggregate that this method had not only considered, but also take into account
The advantages of economy and profit maximization of exploitation exploit the condition that provides the foundation for layer and section, be layer and section exploitation obtains
An important factor for show.
Detailed description of the invention
The overall structure signal that used drum-type Mars Miner is illustrated when Fig. 1 is is exploited using method of the invention
Figure；
Fig. 2 is Mars Miner and the relative positional relationship side view of working face mining mine wall when being exploited using method of the invention
Figure；
Fig. 3 is overall exploitation flow chart of the invention；
Fig. 4 is to carry out region and active section partition process to working face mining mine wall before falling mine using method of the invention
One embodiment；
Fig. 5 is that specific implementation " layer and section, low product back production of keeping on file " technique carries out falling mine partition process shown in Fig. 4 later
The schematic diagram of ore dressing process.
Appended drawing reference: 1. fuselages；2. cutting mechanism；3. roller；4. conveyer；5. support bracket；51. extensible canopy；52. wall supporting
Plate；9. Mars Miner.
Specific embodiment
The invention discloses a kind of down-hole mechanical continuous exploitation method, core is according in advance to ore body mineral aggregate ingredient
Detection, by working face mining mine wall according to mineral aggregate grade grade classification at different layer-shaped area (substantially in being laterally extended
Bar shaped), " stratiform " meets the natural characteristic of mineral aggregate distribution, therefore layer-shaped area is substantially to follow the NATURAL DISTRIBUTION feature of mineral aggregate
Made of division, then working face mining mine wall is artificially laterally divided into one or more active sections, each active section is exactly
One small working face mining mine wall unit.It is cut using drum-type Mars Miner 9 from the beginning of working face when exploitation, along working face
Promote until incoming terminal during one by one active section exploited, in each active section then according to mineral aggregate grade grade by height to
Low sequence one by one exploit by region.
The concrete condition of the diameter of cylinder of the thickness and Mars Miner of ore bed, the exploitation in single region is depending on can in each active section
It is once unidirectionally completed in walking in Mars Miner, also allows point to complete in repeatedly unidirectionally walking.
The present invention divides working face mining mine wall according to mineral aggregate grade grade, and carries out " layer and section exploitation ",
Can effectively solve different quality mineral aggregate mixings leads to problems such as dilution serious, can preferably keep the original product of different quality mineral aggregates
Position, the especially original grade of high-grade mineral aggregate, are advantageously implemented profit maximization.
The mineral aggregate that the determination of the region and active section first has to carry out basis is distinguished: first not according to mineral aggregate grade grade
Together, the region of initiation for representing position and area occupied by the mineral aggregate of each mineral aggregate grade grade is indicated on working face mining mine wall
Block, using the vertical boundary of original block corresponding to the mineral aggregate of highest mineral aggregate grade grade in the working face mining mine wall as boundary line
Mark off several original sections.
It is herein it is lateral, vertically refer to orthogonal two sides in the plane parallel with working face mining mine wall
To wherein transverse direction is parallel along the direction that working face is walked with Mars Miner.
The method of determination one in the region and active section: using the original section as the active section, with described original
Each original block in section is as the region.This mode is suitable for same mineral aggregate grade grade and is especially higher mineral aggregate
Concentration and the thicker working face mining mine wall of ore bed are compared in the mineral aggregate distribution of grade grade, also or for grade grade distinction
It is required that the case where relative loose.The former situation the most extreme is only one mineral aggregate grade grade of the mineral aggregate of entire active section.
The method of determination two in the region and active section can use following four steps:
Step 1) determines the grade that is dominant in each original section: according to the diameter of the roller of Mars Miner, assessing each original section
The highest mineral aggregate grade grade that interior reality can adopt, the be dominant grade of the highest mineral aggregate grade grade as the original section；
Step 2) determines the region: mineral aggregate grade grade is higher than and each equal to the grade that is dominant in each original section
Original block is merged into the region；
The merging in the original section of step 3): the grade that is dominant in the original section of each adjacent two, the two is identical or latter
The grade that is dominant in original section is identical as any grade of not least mineral aggregate grade grade in previous original section, then by the two
Original section merges into one, allows same original section to participate in the merging for repeatedly meeting above-mentioned rule, wherein the former and the latter
Respectively close to the beginning and terminal of working face；
Step 4) determines the active section: using each section for obtaining after step 3) union operation as each work
Make section.Being dominant for each active section and participates in the highest holding one of grade that is dominant in multiple original sections for merging at grade
It causes.
Since mineral aggregate distribution has randomness, it can many times encounter that high-quality mineral aggregate layer is more dispersed, mineral aggregate layer compares
Thin situation, to this almost without the roller of enough minor diameters can accomplish a mining height quality mineral aggregate and make low-quality mineral aggregate will not
It is mixed into wherein, that is to say, that the natural characteristic of mineral aggregate distribution and the limitation of winning equipment determine some high-quality mineral aggregate
Exploitation must be downgraded.The region and active section are determined using aforesaid way two, can must be downgraded open some
The original block adopted directly does degradation division processing, to the more dispersed original block divided based on natural quality, leads to
It crosses and embodies the artificial merger of exploitation economic evaluation, arranges, become more to concentrate, when making based on the exploitation of " layer and section " technique
The number switched between different mineral aggregate grade grades is needed to reduce, single adopts more mineral aggregates after switching, and production efficiency is more
It is high.As it can be seen that the method for determination two of the region and active section have more universality, it taken into account mineral aggregate distribution natural characteristic and
Exploit cost-effectiveness requirement.
In the step 1), the method for the highest mineral aggregate grade grade for the mineral aggregate that can be adopted in each original section of assessment are as follows:
For an original section, if the diameter of roller is no more than the thickness of its highest original block of Mineral Material grade grade,
The highest mineral aggregate grade grade for the mineral aggregate that can be adopted in the original section is exactly the mineral aggregate grade grade of the original block, instead
It, needs specifically to calculate cutting region when participating in exploitation using the full diameter range of single roller of the diameter and mineral aggregate product is completely covered
In the case where the highest original block of grade of position, which mineral aggregate the mixing mineral aggregate of difference quality obtained can enough reach
Grade grade.
The high-quality mineral aggregate for constituting mixing mineral aggregate is more, and the mineral aggregate grade higher grade that can reach, and constitutes mixing mineral aggregate
Low-quality mineral aggregate it is more, the mineral aggregate grade lower grade that can reach.Therefore it needs by constituting mixing two of mineral aggregate or more
The respective working thickness of mineral aggregate of multiple grade grades, the content respectively effectively expected calculate the total content of each ingredient in composite ore material
Or mutual ratio, then the setting range of mineral aggregate grade grade is contrasted, determine highest mineral aggregate grade belonging to mixing mineral aggregate
Grade.
Above-mentioned down-hole mechanical continuous exploitation method can many aspects from below further optimized, and this
A little optimizations can be in any combination.
1, the diameter of the roller of the Mars Miner is preferably within the scope of the mating diameter of cylinder that the Mars Miner allows, root
It is determined according to the mineral aggregate of the highest mineral aggregate grade obtained can be made to be up to standard.Therefore, when the mineral aggregate layer of highest mineral aggregate grade is general
All over it is relatively thin when, such as its thickness close to can mating roller diameter range lower limit, the diameter for generally selecting single roller is smaller
In the thickness of the original block of most of highest mineral aggregate grade grades, and when the mineral aggregate layer of highest mineral aggregate grade is generally thicker,
Be likely to single roller diameter be no more than highest mineral aggregate grade mineral aggregate layer thickness, unidirectionally walk and adopted more for single
More mineral aggregates needs to select the roller of slightly larger diameter, and need to control is that multiple rollers are superimposed in the height direction on Mars Miner
Thickness of the size afterwards without departing from the original block of most of highest mineral aggregate grade grades.It should be noted that being based on above-mentioned mark
Standard selects the diameter of matched roller may be not unique.
2, the Mars Miner has carried out after a standard-sized sheet adopts work at present face, advances a step to working face mining mine wall
Away from the rear exploitation for being ready for next working face.As the basic basis for dividing region and active section to working face mining mine wall
Mineral aggregate composition detection, can be primary with the detection of working face, can also be detected with multiple working faces it is primary, i.e., it is continuous multiple described
Working face is jointly using a same Ore Body material composition detection as a result, realize the layered area to each working face mining mine wall
The division in domain and active section.It, can be by increasing ore body mineral aggregate composition detection number if large change occurs in mineral aggregate distribution
With the further refinement of the division to original region and active section, changes share an ore body mineral aggregate composition detection result at any time
The quantity of working face.
3, preferably using one end in the both ends of the working face close to longer highest level mineral aggregate region as institute
The beginning of working face is stated, i.e. Mars Miner cuts ore bed from this one end.Since Mars Miner enters the process that ore body needs a beveling,
It is relatively long, it selects longer one end as incision end, can not destroy as far as possible or destroy the grade of high-grade mineral aggregate less.
4, the mineral aggregate grade grade is mainly determined according to the quality requirements of exploitation mineral aggregate, is the people to mineral aggregate quality height
For definition.Heretofore described mineral aggregate grade grade is set as including at least A, B, C three-level, when only A, B, C three-level, A grades
For highest level, B is intermediate grade, and C is the lowest class.
5, preferably it is mating use " low product back production of keeping on file " technique: i.e. Mars Miner from beginning into terminal recovery process, at least
Active section for wherein containing multiple regions corresponding to different mineral aggregate grade grades retains top the lowest class mineral aggregate and bottom
Portion step E1, be left to the Mars Miner from the terminal of the working face be back to beginning during disposable active section one by one open
It adopts, realizes the cutting and loading of the lowest class mineral aggregate.Mars Miner adopt under mineral aggregate pass through it is defeated outside conveyer.The top retained is most
Inferior grade mineral aggregate is typically situated in the whole in the region corresponding to minimum mineral aggregate grade grade at top.
Retain bottom stage E1 when exploit in order to avoid previous step pitch there are the mineral aggregate dross E2 of rudimentary grade mix
In the mineral aggregate for entering high rank quality.
Since under normal circumstances, mineral aggregate shows short transverse on working face mining mine wall according to grade grade naturally
The phenomenon that (i.e. longitudinal) higher slice, and usually grade higher grade mineral aggregate layer more concentrates on working face mining mine wall height side
To middle part, closer to the top and bottom of working face mining mine wall, the grade lower grade of mineral aggregate layer.It is most low to retain top
Grade mineral aggregate and bottom stage, are more in secondary inferior grade mineral aggregate during Mars Miner is exploited from working face beginning to terminal
The switching exploited to highest level mineral aggregate is exploited, is cut compared to exploiting from the lowest class mineral aggregate to what highest level mineral aggregate was exploited
It changes, mineral aggregate loads and the reduction shadow being mixed into high-grade ore item matter in high-grade mineral aggregate in transmission process because of low-grade mineral aggregate
Ringing can be smaller.
For wherein only corresponding to the active section in the region of minimum mineral aggregate grade grade, top the lowest class mine containing one
Material and bottom stage can retain, and can not also retain.
Further, the highly preferred height referring to conveyer ledge of the bottom stage determines, such as with conveying
Float up and down any value in the range of 20% centered on the height of trough side, preferably equal with the height of conveyer ledge or phase
Closely.For the height of general conveyer ledge in 300mm or so, the height of the bottom stage is preferably 250-350mm.
The height for the bottom stage that different active sections is retained can be different, but most cases are consistent.
It is mating using in the case where " low product back production of keeping on file " technique, in each active section, when close to top the lowest class mine
It is excellent when the thickness in the region of the not least mineral aggregate grade grade of material or bottom stage is less than the 10% of the diameter of the roller
Choosing by such region remain into the Mars Miner from the terminal of the working face be back to beginning during it is disposable one by one
Active section exploitation.This method is equivalent to the range for expanding back production.Since corresponding region is relatively thin, and top the lowest class mineral aggregate
Or bottom stage is usually lowest quality mineral aggregate, therefore mixes and adopted for economy shadow with top the lowest class mineral aggregate or bottom stage
Ring very little.On the other hand, the number to retract in an active section due to reducing Mars Miner can but significantly improve production effect
Rate, therefore this method has positive effect.
6, Mars Miner is removed, conveyer, discharging racking machine and feed bin are also preferably equipped with, Mars Miner carries out cutting to mineral aggregate, breaks
It is broken, and blanking is pushed into conveyer, the end of conveyer is arranged in discharging racking machine, and discharging racking machine has multi-angle positioning dress
It sets, after receiving the different grade grade mineral aggregates from working face, by adjusting the short-track and different feed bins of multi-angle positioning device
Cang Dao docking, realize different grade grades mineral aggregate enter corresponding feed bin in storage.
When the Mars Miner will be exploited from the region to a mineral aggregate grade grade to another mineral aggregate grade grade
When the exploitation switching of region, the Mars Miner first issues exploitation corresponding with another mineral aggregate grade grade to centralized control center and prepares
Signal, centralized control center be connected to it is described exploitation ready signal be located at backward conveyer end discharging racking machine issue packing signal with
And enabling signal is issued to the Mars Miner, the control content of the packing signal is to make the racking machine prolonging in certain time length
When after discharge port switched to be connected to each other with the feed bin of another mineral aggregate grade grade, the Mars Miner is connected to the enabling signal
Afterwards, start the exploitation in the region to another mineral aggregate grade grade.
Coordinated control by centralized control center to Mars Miner, conveyer, discharging racking machine, after realizing layer and section exploitation
Partite transport and packing, ensure that the quality of different grade grade mineral aggregates especially high-grade mineral aggregate conscientiously.
Fig. 1 is a kind of structural shape citing of the drum-type Mars Miner, and the Mars Miner includes fuselage 1, left and right two
Two rollers 3 of cutting mechanism 2 and left and right.Roller is mounted on one end of the cutting mechanism, the driving of roller correspondingly
It is installed on the cutting mechanism with drive mechanism.Roller System of Rotating about Fixed Axis, it is broken that cutting tooth thereon carries out cutting to mineral aggregate.
When the linear velocity of cutting tooth is maintained at lower range, it is suitable for cutting hard mineral aggregate.The other end angle of the cutting mechanism
It is adjustably mounted on the fuselage.Angle by adjusting the cutting mechanism with respect to fuselage, thus it is possible to vary the height of roller,
To carry out the cutting mineral aggregate operation of different height.
Down-hole mechanical continuous exploitation method of the invention does not limit the structural shape of specific drum-type Mars Miner, example
If do not limited the quantity of cutting mechanism, diameter of roller etc..
When carrying out underground mining using method of the invention, as shown in Fig. 2, the Mars Miner be located at conveyer 4 top,
Positioned at the lower section of support bracket 5, the conveyer (extends) line style along working face perpendicular to paper and is laid with, and the Mars Miner is crossed on
Above the conveyer, travelled along the conveyer.Mineral aggregate under the Mars Miner is adopted falls into the conveyer, at any time through conveying
Machine transports out of.The top plate of support bracket branch support provides space and protection, the extensible canopy 51 of support bracket for the traveling of Mars Miner
Supportings are carried out with 52 pairs of face guard top, prevent the impurity such as top plate rubble from falling the grade for influencing mineral aggregate, while to mine wall supporting,
Guarantee that Mars Miner is made a return journey the safety of walking.The conveyer uses drag conveyor.After completing the exploitation of a working face, adopt
Mine machine, conveyer, support bracket are ready for next working face both facing to the mobile step pitch in direction of working face mining mine wall
Exploitation.
The present invention by before adopting to the actually detected and mark of different quality mineral aggregate distribution situations of working face mineral aggregate ingredient,
Region division has been carried out to working face mining mine wall based on mineral aggregate quality, then based on this carry out " layer and section exploitation " and
" low product back production of keeping on file " technique, realize same working face difference quality mineral aggregate falls mine respectively, is advantageously implemented economic profit
Maximization.Above effect is especially pronounced for the hard material exploitation that is lifted at of the differentiation bring economic interests of this mineral aggregate quality.
Hereafter by taking a working face ore body as an example, down-hole mechanicalization of the invention is illustrated in conjunction with Fig. 3,4,5 and is continuously opened
The implementation process of mining method.
1, mineral aggregate grade grade is set.According to mineral aggregate grade requirement, set three grades, A grades be highest grade, B grades be
Intermediate grade, C grade are lowest qualities.
2, mineral aggregate composition detection and mineral aggregate grade grade designation are distinguished.First working face ore body mineral aggregate ingredient is detected,
Then it according to the difference of above-mentioned mineral aggregate grade grade, is indicated on working face mining mine wall and represents each mineral aggregate grade grade
The original block of position and area occupied by mineral aggregate.It is understood that not the mineral aggregate of all sites can be readily apparent that
It is classified as which mineral aggregate grade grade, therefore the division of above-mentioned original block is acceptable rough based on actual needs levels of precision
Division.
3, original section is divided.I indicates existing highest mineral aggregate grade grade in the working face mining mine wall in Fig. 4 (a)
That is original block corresponding to A grades of mineral aggregate goes out 7 as identification of boundaries using the vertical boundary of original block corresponding to A grades of mineral aggregates
Original section 1. -7., the highest grade grade of the mineral aggregate of naturally occurring is A grades, B grades, A grades, B grades, A respectively in each original section
Grade, B grades and A grades.
A grades generally in centre, above and below be B grade mineral aggregate layers, nearly bottom of pushing up is C grades of mineral aggregate layers.A grades of majority of case
Spreading depth is larger, general placed in the middle on the upper side or on the lower side, for example, original section 1., 5., 7. in original block I, but also can sometimes
There is being thinned isolated state, for example, original section 3. in original block I, also it sometimes appear that one section without A grades of mineral aggregate layers and
The case where there is only B grades, C grades of mineral aggregate layers, such as original section is 6., wherein B grades of mineral aggregates are top, and C grades of mineral aggregates are on the lower.
4, the diameter of roller is determined.Within the scope of the mating diameter of cylinder that the Mars Miner allows, chooses diameter and be slightly less than
Original section 1., 5., 7. in each original block corresponding to A grade mineral aggregates thickness roller, make the original section of roller incision 1.,
5., original block I 7. when mineral aggregate obtained be all unlikely to be mixed into other inferior grade mineral aggregates, thereby guarantee that the A grade product of mineral aggregate
Position, to make the A grade mineral aggregate obtained most in the conceived case.
5, the grade that is dominant in each original section is determined.Highest mineral aggregate grade of mineral aggregate etc. can be adopted by assessing in each original section
Grade, using the highest mineral aggregate grade grade as the grade that is dominant in the original section.The grade that is dominant in i.e. one original section is exactly
The highest mineral aggregate for the mineral aggregate that can be actually obtained in the original section using the winning equipment of concrete configuration parameter and ability
Grade grade.
In the case where considering above-mentioned diameter of cylinder, due to original section 1., 5., 7. in the mineral aggregate that can adopt most
High mineral aggregate grade grade is A grades, therefore the grade that is dominant of original section 1., 5., 7. is A grades.In the same way, original section 2.,
4. the mineral aggregate grade grade of middle naturally occurring is up to B grades, the diameter of the roller be no more than original section 2., 4. in B grades of mines
The thickness of the corresponding original block of material, therefore in the case where considering diameter of cylinder factor, judge original section 2., 4.
The highest mineral aggregate grade grade of the interior mineral aggregate that can be adopted still is B grades, and also therefore the grade that is dominant of original section 2., 4. is B grades.
3. for original section, the diameter of roller has been more than the thickness of wherein original block I corresponding to A grades of mineral aggregates, because
This is inevitably mixed into the mineral aggregate of other rudimentary grades, and mixed under illustrated case is B grades of mineral aggregates.According to A grades of mineral aggregate institutes
The thickness of corresponding original block, the diameter of roller are known that the minimum thickness of mixed B grades of mineral aggregate, pass through A grades and B grades of mines
Expect respective thickness accounting, the specific quality conditions of mineral aggregate under dug up mine item matter optimal situation can be calculated, then passed through
It is compared with quality standard range corresponding to preset each mineral aggregate grade grade, judges that it does not meet A grades of mineral aggregate standards,
But meet B grades of mineral aggregate standards, thus original section 3. in the highest mineral aggregate grade grade of mineral aggregate that can actually adopt be B grades and
It is not A grades, also therefore the grade that is dominant of original section 3. is B grades.
6. for original section, wherein the highest original block of mineral aggregate grade grade of naturally occurring is proximate to the B on top
Original block corresponding to grade mineral aggregate, however since the diameter of roller has been more than the thickness of B grades of mineral aggregates, it can not be kept away when exploiting
The mineral aggregate of the C grade grade of lower part original block can be mixed into exempting from.It similarly, can by B grades and the respective thickness accounting of C grades of mineral aggregates
To calculate the specific quality conditions of mineral aggregate under dug up mine item matter optimal situation, then by with preset each mineral aggregate product
Quality standard range contrast judgement its mineral aggregate standard for meeting which grade corresponding to the grade of position, judging result in the present embodiment
Be that it does not meet B grades of mineral aggregate standards, meet C grades of mineral aggregate standards, thus original section 6. in the highest mine of mineral aggregate that can adopt
Item position grade is C grade rather than B grades, and also therefore the grade that is dominant of original section 6. is C grades.
To sum up, original section 1.-grade that is dominant 7. is respectively A grades, B grades, B grades, B grades, A grades, C grades and A grades.It is dominant
Being determined as of grade judge whether to need in next step compatible exploitation (being embodied by the merging in original block and original section) provide according to
According to.
6, by the merging of original block, the region is obtained.The merging rule of original block is: each original section
It is interior, when there are the original block that mineral aggregate grade grade is higher than the grade that is dominant, such original block is incorporated to mineral aggregate grade etc.
Grade, which is equal to, to be dominant in the original block of grade.In above-mentioned 7 original sections, meet the original section of such case for 3. and 6..
The grade that is dominant of original section 3. is B grades, and the original block I that 3. Mineral Material grade grade is A grades is incorporated to mineral aggregate grade grade
For in B grades of original blocks, the effect being incorporated to is that the original block I for being A grades mineral aggregate grade grade is reduced to B grades and mineral aggregate grade
Grade is that B grades of original block is exploited simultaneously.The grade that is dominant of original section 6. is C grades, will Mineral Material grade grade be 6. B grades
Original block to be incorporated to mineral aggregate grade grade be in C grade of original block, it is B grades that the effect being incorporated to, which is mineral aggregate grade grade,
Original block is reduced to the original block that C grades are C grades with mineral aggregate grade grade and exploits simultaneously.Effect after original block merges such as is schemed
Shown in (b) in 4.
7, by the merging in original section, the active section is obtained.The merging rule in original section is: each adjacent two is former
The grade that is dominant in beginning section, the two is identical or the former grade that is dominant is higher than the latter, and contains its mineral aggregate grade in the former
Grade original block identical with the grade that is dominant of the latter, then merge into one for the two original sections.Allow simultaneously same
Original section participates in the merging for repeatedly meeting above-mentioned rule.Wherein the differentiation of the former and the latter is using the both ends of working face as reference,
Respectively close to the beginning and terminal of working face.
The grade that is dominant of adjacent original section 2., 3., 4. is B grades, meets above-mentioned rule, merges.Adjacent
Original section 1., 2. in, previous original section 1. be dominant grade be A grades, higher than the grade B that is dominant of latter original section 2.
Grade, and previous original section 1. in containing its mineral aggregate grade grade be B grades of original block, also comply with above-mentioned rule, thus into
Row merges.Thus 1., 2., 3., 4. adjacent original section all merges, becomes active section D1, original section 5.,
6., 7. do not meet above-mentioned merging rule, need not move through merging, directly serve as active section D2, D3 and D4.After original section merges
Shown in (c) in effect such as Fig. 4.
8, it is exploited according to " layer and section, low product back production of keeping on file " technique.
(1) as shown in figure 5, due in D10 sections A1 zone length it is larger, be conducive to Mars Miner incision ore body in, therefore will
The end of the close working face in the region A1 is pushed into mine wall side in company with conveyer as beginning, Mars Miner.Mars Miner first gives collection
Control center sends A grades of mineral aggregates and exploits ready signal, and centralized control center is connected to the discharging racking machine that signal is located at conveyer end backward
It issues A grades of mineral aggregate packing signals and issues A grades of mineral aggregates to Mars Miner and exploit enabling signal, Mars Miner receives in collection control
Just start the blanking and charging to region A1 after the enabling signal of the heart, realizes A grades of grade mineral aggregate exploitations in D1 active section.
(2) after the completion of the exploitation of the region A1, Mars Miner returns to the initial position (i.e. the beginning of working face) of active section D1, moves back
Thorough cleaning dress preferably is carried out only to the buoyant of high-quality mineral aggregate during returning, improves the rate of recovery.Mars Miner is to centralized control center
It issues B grades of mineral aggregates and exploits ready signal, centralized control center is connected to B grades of the discharging racking machine sending that signal is located at conveyer end backward
Mineral aggregate, which dispenses signal and issues B grades of mineral aggregates to Mars Miner, exploits enabling signal, and the Mars Miner is connected to from centralized control center
After enabling signal, restart blanking and the charging to B1 and A11, realizes B grades of grade mineral aggregate exploitations in D1 active section.
Retain region C1 and bottom platform corresponding to top the lowest class mineral aggregate (being C grades of mineral aggregates in the present embodiment) during this
Rank, bottom stage is generally close with conveyer ledge height, stays the step of 300mm high here.
(3) Mars Miner issues A grade mineral aggregates exploitation ready signals to centralized control center, centralized control center be connected to signal be located at backward it is defeated
It send the discharging racking machine of machine end to issue A grades of mineral aggregate packing signals and issues A grades of mineral aggregate exploitation enabling signals, institute to Mars Miner
It states after Mars Miner is connected to the enabling signal from centralized control center, starts the blanking to region A2 and charging, realize A in D2 active section
The exploitation of grade grade mineral aggregate.
(4) after the completion of the exploitation of the region A2, Mars Miner returns to the initial position of active section D2.Mars Miner is sent out to centralized control center
B grades of mineral aggregates exploit ready signal out, and centralized control center is connected to the discharging racking machine B grades of mines of sending that signal is located at conveyer end backward
Material, which dispenses signal and issues B grades of mineral aggregates to Mars Miner, exploits enabling signals, and the Mars Miner is connected to be permitted from centralized control center
After signal, restart to the blanking in the region B2 and charging in D2 active section, realizes in D2 active section opening for B grades of grade mineral aggregates
It adopts.
Period retains region C2 and bottom platform corresponding to top the lowest class mineral aggregate (being C grades of mineral aggregates in the present embodiment)
The height of rank, bottom stage still maintains 300mm.
(5) Mars Miner issues C grade mineral aggregates exploitation ready signals to centralized control center, centralized control center be connected to signal be located at backward it is defeated
It send the discharging racking machine of machine end to issue C grades of mineral aggregate packing signals and issues C grades of mineral aggregate exploitation enabling signals, institute to Mars Miner
It states after Mars Miner is connected to the enabling signal from centralized control center, starts the blanking to the region B3 and C3 in D3 active section and charging,
Realize the exploitation of C grades of grade mineral aggregates in D3 active section.
Period retains region and bottom stage corresponding to top the lowest class mineral aggregate (being C grades of mineral aggregates in the present embodiment),
The height of bottom stage still maintains 300mm.In fact, since the grade that is dominant of the active section has been minimum mineral aggregate grade,
There is no being mixed into low-grade mineral aggregate in high-grade mineral aggregate, therefore when active section is exploited, can not also stay bottom stage.
(6) Mars Miner issues A grade mineral aggregates exploitation ready signals to centralized control center, centralized control center be connected to signal be located at backward it is defeated
It send the discharging racking machine of machine end to issue A grades of mineral aggregate packing signals and issues A grades of mineral aggregate exploitation enabling signals, institute to Mars Miner
It states after Mars Miner is connected to the enabling signal from centralized control center, starts the blanking to region A4 and charging, realize A in D4 active section
The exploitation of grade grade mineral aggregate.
(7) Mars Miner issues B grade mineral aggregates exploitation ready signals to centralized control center, centralized control center be connected to signal be located at backward it is defeated
It send the discharging racking machine of machine end to issue B grades of mineral aggregate packing signals and issues B grades of mineral aggregate exploitation enabling signals, institute to Mars Miner
It states after Mars Miner is connected to the enabling signal from centralized control center, restarts to the blanking in the region B4 and charging in D4 active section, it is real
The exploitation of B grades of grade mineral aggregates in existing D4 active section.
Period retains region and bottom stage corresponding to top the lowest class mineral aggregate (being C grades of mineral aggregates in the present embodiment)
The height of C4, bottom stage still maintain 300mm.
(8) Mars Miner issues C grade mineral aggregates exploitation ready signals to centralized control center, centralized control center be connected to signal be located at backward it is defeated
It send the discharging racking machine of machine end to issue C grades of mineral aggregate packing signals and issues C grades of mineral aggregate exploitation enabling signals, institute to Mars Miner
It states after Mars Miner is connected to the enabling signal from centralized control center, Mars Miner is walked from the terminal of working face to beginning, before back production
Top C grades of retained region and bottom stage.Mars Miner is completed from the beginning of working face to terminal, then by terminal to beginning
The exploitation of one working face.
(9) equipment such as Mars Miner, conveyer, support bracket are towards the mobile step pitch of mine wall, according to it is above-mentioned " layer and section,
Keep on file low product back production " technique carries out the exploitation of next working face.
Down-hole mechanical continuous exploitation method of the invention, by exploit before to the actually detected of working face mineral aggregate and according to
Mineral aggregate grade grade distinguishes the mark of ore body, then carries out layer and section exploitation to different grade mineral aggregates with Mars Miner, realizes
Same working face difference quality mineral aggregate individually falls mine, ensure that mineral aggregate quality.This method is subsequent partite transport, dispenses in turn in fact
Now being obviously improved for profit of exploitation creates condition, and provides possibility, the economy that this method is exploited especially for hard material
With significant improved effect.
Claims (10)
1. a kind of down-hole mechanical continuous exploitation method, which is characterized in that according to the detection to ore body mineral aggregate ingredient, by working face
It exploits mine wall and is laterally divided into one at different layer-shaped areas, then by working face mining mine wall according to mineral aggregate grade grade classification
Or multiple active sections, using drum-type Mars Miner, from the beginning of working face to terminal, active section is exploited one by one when exploitation, often
Sequence region exploitation one by one in a active section according to mineral aggregate grade grade from high to low.
2. down-hole mechanical continuous exploitation method as described in claim 1, which is characterized in that the region and active section are really
Determine mode are as follows: according to the difference of mineral aggregate grade grade, indicate on working face mining mine wall and represent each mineral aggregate grade grade
Mineral aggregate occupied by position and area original block, with the mineral aggregate institute of highest mineral aggregate grade grade in the working face mining mine wall
The vertical boundary of corresponding original block is that identification of boundaries goes out several original sections,
Mode one: using the original section as the active section, using each original block in the original section as institute
State region；Alternatively,
Mode two: step 1) determines the grade that is dominant in each original section: the highest for the mineral aggregate that can be adopted in each original section of assessment
Mineral aggregate grade grade, using the highest mineral aggregate grade grade as the grade that is dominant in the original section；
Step 2) determines the region: in each original section, when there are the regions of initiation that mineral aggregate grade grade is higher than the grade that is dominant
When block, by such original block be incorporated to mineral aggregate grade grade be equal to be dominant in the original block of grade；
The merging in the original section of step 3): the grade that is dominant in the original section of each adjacent two, the two is identical or the former accounts for
Excellent grade is higher than the latter and in the former containing its mineral aggregate grade grade original block identical with the grade that is dominant of the latter, then by this
Two original sections merge into one, and same original section is allowed to participate in the merging for repeatedly meeting above-mentioned rule, wherein the former with
Beginning and terminal of the latter respectively close to working face；
Step 4) determines the active section: using each section for obtaining after step 3) union operation as each work
Section.
3. down-hole mechanical continuous exploitation method as claimed in claim 2, which is characterized in that assessment can adopt in each original section
The method of the highest mineral aggregate grade grade arrived are as follows: an original section is directed to, if the diameter of roller is no more than its Mineral Material product
The thickness of the position highest original block of grade, then the highest mineral aggregate grade grade that can be adopted in the original section is exactly the region of initiation
The mineral aggregate grade grade of block, conversely, calculating cutting region when exploiting using the single roller of the diameter is completely covered mineral aggregate grade
In the case where the highest original block of grade, which mineral aggregate product the mixing mineral aggregate of difference quality obtained can enough reach
Position grade.
4. down-hole mechanical continuous exploitation method as claimed in claim 3, which is characterized in that the roller of the Mars Miner it is straight
Mineral aggregate of the diameter within the scope of the mating diameter of cylinder that the Mars Miner allows according to the highest mineral aggregate grade that can make acquisition is most
It is determined for standard.
5. the down-hole mechanical continuous exploitation method as described in any one of claim 1-4 claim, which is characterized in that
The Mars Miner has carried out after a standard-sized sheet adopts work at present face, advances a step pitch to working face mining mine wall, under preparation
The exploitation of one working face, a working face or continuous multiple working faces utilize jointly with an Ore Body material at
Sorting is surveyed result and is realized to the layered region of each working face mining mine wall and the division of active section.
6. the down-hole mechanical continuous exploitation method as described in any one of claim 1-4 claim, which is characterized in that
Beginning of the one end as the working face in the both ends of the working face close to longer highest level mineral aggregate region.
7. the down-hole mechanical continuous exploitation method as described in any one of claim 1-4 claim, which is characterized in that
The mineral aggregate grade grade is set as including at least A, B, C three-level, and when only A, B, C three-level, A grade are highest level, during B is
Between grade, C is the lowest class.
8. the down-hole mechanical continuous exploitation method as described in any one of claim 1-7 claim, which is characterized in that
Mars Miner from beginning into terminal recovery process, at least for wherein contain multiple regions corresponding to different mineral aggregate grade grades
Active section retain top the lowest class mineral aggregate and bottom stage, be left to the Mars Miner and be back to from the terminal of the working face
Disposable active section one by one is exploited during beginning.
9. down-hole mechanical continuous exploitation method as claimed in claim 8, which is characterized in that the height of the bottom stage exists
Floated up and down any value in the range of 20% centered on the height of conveyer ledge.
10. underground as claimed in claim 8 falls mine beneficiation method, which is characterized in that in each active section, when close to top most
The thickness in the region of the not least mineral aggregate grade grade of inferior grade mineral aggregate or bottom stage is less than the diameter of the roller
When 10%, is remained into during the Mars Miner is back to beginning from the terminal of the working face and disposably worked one by one
Section exploitation.
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| CN111622762A (en) * | 2020-06-08 | 2020-09-04 | 天地科技股份有限公司上海分公司 | Mining process of double-roller mining machine |
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Application publication date: 20190312 Assignee: CHINA COAL TECHNOLOGY & ENGINEERING GROUP SHANGHAI Co.,Ltd. Assignor: Tiandi Shanghai Excavating Equipment Technology Co.,Ltd. Contract record no.: X2023110000134 Denomination of invention: Underground mechanized continuous mining method Granted publication date: 20200508 License type: Common License Record date: 20231102 |