CN106499396A - The thick low-angle dip ore block house column mining codes of interlayer containing barren rock in one kind - Google Patents
The thick low-angle dip ore block house column mining codes of interlayer containing barren rock in one kind Download PDFInfo
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- CN106499396A CN106499396A CN201710035565.7A CN201710035565A CN106499396A CN 106499396 A CN106499396 A CN 106499396A CN 201710035565 A CN201710035565 A CN 201710035565A CN 106499396 A CN106499396 A CN 106499396A
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- 239000011435 rock Substances 0.000 title claims abstract description 52
- 239000011229 interlayer Substances 0.000 title claims abstract description 40
- 238000005065 mining Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 6
- 238000003776 cleavage reaction Methods 0.000 claims abstract description 4
- 230000007017 scission Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 3
- 239000011707 mineral Substances 0.000 abstract description 3
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The present invention relates to the thick low-angle dip ore block house column mining codes of interlayer containing barren rock in one kind, including：Stope arranges that along orebody trend lingering between stope in continuous ore pillar, stope and being divided into some back production units along orebody trend, mineral building width is ore body horizontal breadth；Back production unit interior laminate layer is exploited, and using top-down stopping sequence, is first adopted overlying seam, and is stayed certain altitude ore bed to adopt roof bolting, then the interlayer barren rock in the middle of upper and lower ore bed is rejected, last back production bottom ore bed；Back production Self cleavage gallery is boosted, and work surface across strike is advanced toward opposite side from stope side in staged.The method is safe efficient, depletion loss rate is low.
Description
Technical field
The invention belongs to mining technique field, and in particular to thick low-angle dip interlayer containing barren rock ore block house column mining in one kind
Method.
Background technology
For middle thick low-angle dip interlayer containing barren rock ore body, and barren rock interlayer needs the exploitation of this uneasily mining orebody of rejecting,
Both at home and abroad at present all without preferable recovery method, it is common practice to dug ore body intermediate course barren rock and Ore together
Rock burst is broken, and barren rock is clipped in Ore and together produces.This kind of way has larger drawback, greatly improves the dilution of mining
Rate, reduces the value of extracted ore, in some instances it may even be possible to cause extracted ore mine grade to be unable to reach the requirement of Beneficiation Feed Grade, from
And cause the significant wastage of resource, man power and material.
Content of the invention
It is an object of the invention to provide the thick low-angle dip ore block house column mining codes of interlayer containing barren rock in one kind, the method safety,
Efficiently, depletion loss rate is low.
The technical scheme is that：The thick low-angle dip ore block house column mining codes of interlayer containing barren rock in one kind, including：
Stope is arranged along orebody trend, lingers in continuous ore pillar, stope and be divided into some back production units, ore deposit along orebody trend between stope
Room width is ore body horizontal breadth；
Back production unit interior laminate layer is exploited, and using top-down stopping sequence, is first adopted overlying seam, and is stayed certain altitude ore bed
Using roof bolting, then the interlayer barren rock in the middle of upper and lower ore bed is rejected, last back production bottom ore bed；
Back production Self cleavage gallery is boosted, and work surface across strike is advanced toward opposite side from stope side in staged.
In a specific embodiment of the present invention, a back production unit is divided into every 11～13m.
In a specific embodiment of the present invention, there are three back production units in each stope while carrying out back production, per
The advanced spacing of individual back production unit is not less than 5m.
In a specific embodiment of the present invention, mainly by people's row vent (-escape) raise, courtyard connecting taxiway, ore pass, cut
Cut gallery, scraper winch chamber composition and adopt cut journey.
In a specific embodiment of the present invention, it is made up of level haulage gallery, people's row vent (-escape) raise and ore pass
Adopt Barebone.
In a specific embodiment of the present invention, Ore is harrowed in Stope chute along seam pitch direction.
In a specific embodiment of the present invention, stay permanent spaced points post to support Stope roof in stope, stay
0.5m or so ore beds shield top.
In a specific embodiment of the present invention, stope is using distinguished and admirable ventilation is run through, distinguished and admirable flat through level haulage
Lane, people's row material aeration courtyard, courtyard connection roadway enter stope, and the dirty wind cleaned after stope is divulged information by people's row of nugget opposite side
Courtyard enters stage casing air return system.
In a specific embodiment of the present invention, the method be applied to 20 ~ 30 ° of inclination angle, ore body 3 ~ 8m of vertical thickness,
Contain 0.5 ~ 1.2m barren rock interlayers in the middle of ore bed.
Compared with prior art, beneficial effects of the present invention following points：
1 efficiency high security is good
The present invention proposes roof bolting shallow bore hole layering room and pillar stoping for middle thick low-angle dip interlayer containing barren rock orebody mining.Per
Three back production units can be arranged in individual stope to carry out back production ore removal, production capacity is big, efficiency high；After upper strata ore body has been adopted,
Rib roof bolting is carried out to ore body roof, so as to ensure the safety for rejecting interlayer and the Ore work of back production lower floor, is adopted in addition
Permanent point post is stayed to support Stope roof in, operational security is high；
2 depletion loss rates are low
Room and pillar stoping is layered using roof bolting shallow bore hole, can effectively prevent roof rock barren rock to be mixed in Ore, using layering
Interlayer barren rock is rejected by the mode of exploitation, so that the rate of dilution of extracted ore is substantially reduced, can ensure that rate of dilution control 8%
Within；Fallen ore deposit using shallow bore hole, can effectively control ore limits, improved the rate of extraction, can be backbreak with effective control during explosion and be owed
Dig, reduce the rate of dilution；
3 improve resource utilization
Middle thick low-angle dip interlayer containing barren rock ore body, if Ore grade itself is not very high, using traditional mixed adopt by the way of exploit
The grade for then most likely resulting in extracted ore is unable to reach Beneficiation Feed Grade requirement, so as to cause the waste of resource and manpower.Adopt
Room and pillar stoping is layered with roof bolting shallow bore hole, the grade of extracted ore can be controlled well, obtained the resource of this type
Effectively develop.
In sum, the present invention is high middle thick slow of a kind of big safe efficient, production capacity, low lean damage, resource utilization
Incline the mining methods of the ore body of interlayer containing barren rock.
The inventive method is primarily adapted for use in 20 ~ 30 ° of inclination angle, contains 0.5 ~ 1.2m in the middle of ore body 3 ~ 8m of vertical thickness, ore bed
Barren rock interlayer, ore body are consolidated, and roof rock built on the sand, and requires that operational security is high, production capacity is big, the low-angle dip of efficiency high
Orebody mining.
Description of the drawings
Fig. 1 is the mining methods plane graph of a specific embodiment of the invention；
Fig. 2, Fig. 3 and Fig. 4 are respectively the mining methods back production upper ore of a specific embodiment of the invention, rejecting interlayer and give up
Stone and back production lower floor Ore profile.
Specific embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Middle thick low-angle dip interlayer containing the barren rock ore block house column mining codes of a specific embodiment of the invention, concrete arrange with
Implementation process includes：
1 nugget miding level height is 30m, arranges stope along orebody trend, and length of stope 60m, miding level height 30m are lingered between stope
A back production unit is divided into along orebody trend every 11～13m in continuous ore pillar, continuous ore pillar width 4m, stope, mineral building width is
Ore body horizontal breadth.Back production unit 8～9m of clear span wherein inside stope, spaced points post 3.5m × 3.5m.Stay the high top-bottom pillars of 3m；
2 dig people's row material aeration courtyard and ore pass to ore body upwards from by the outer haulage way of arteries and veins, near ore body base plate pick courtyard
Connecting taxiway, along orebody trend pick cutting gallery, along back production unit central axial line arrangement scraper winch chamber etc..As shown in drawings,
In each figure：1- level haulage gallery 2- people's row material aeration courtyard 3- scraper winch chamber 4- courtyard connecting taxiways 5- cuttings are flat
Lane 6- stope studding 7- mineral building point post 8- upper stratas ore deposit 9- interlayer barren rock 10- lower floors ore deposit 11- stope return air inlet 12- slips ore deposit
Well.Adopt in quasi- cutting work, upward hole is beaten using YSP-45 rock drills, 7655 rock drills are fetched water flat hole；
3 according to the production capacity of stope, and the production capacity of ore removal equipment, can have three back production units in each stope while
Production, each advanced spacing of back production unit are not less than 5m；Unit interior laminate layer is exploited, and the advanced lower leaf of higher slice is left apart from 8m
Right.Top lean ore bed is first adopted（Stay 0.5m ore beds shield top）, it is arranged in parallel upwards blasthole along orebody strike, blasthole level interval
615mm, vertical direction 600 ~ 700mm of spacing, using roof bolting, then the interlayer barren rock in the middle of upper and lower ore bed are rejected, are rejected
According to barren rock thickness of interlayer, interlayer barren rock can arrange that the blasthole of respective depth is rejected in the form of explosion, last back production bottom
Rich ore layer, it is identical that the steel for shot of rich ore layer is intended to the lean ore bed steel for shot in top, and the interlayer barren rock of rejecting is deposited in goaf.
Unit back production Self cleavage gallery is boosted, and using 7655 rock drill rock drilling, work surface across strike is in staged from stope one end
Advance toward the other end.Regular 3.5m × 3.5m points post is stayed in stope.Ore removal adopts 2JPB-30 type scrapers, and Ore is along seam pitch
Direction is harrowed in Stope chute, loads mine car through funnel, is transported to main chute system by the outer haulage way of locomotive haulage passages through which vital energy circulates, so
Earth's surface is proposed by skip bucket afterwards；
4 stopes are using through distinguished and admirable ventilation.Distinguished and admirable enter through level haulage gallery, people's row material aeration courtyard, courtyard connection roadway
Enter stope, the dirty wind cleaned after stope enters upper stage casing air return system by people's row vent (-escape) raise of nugget opposite side.In order to improve
The ventilation condition of Stope face, stope strengthen ventilation using portable blower.Portable blower selects JK58-1NO4 or JK58-1NO5 types, each
Stope matches somebody with somebody 1～2.According to the firm situation of rock mass, adopt and cut well lane engineering and can use suspension roof support, anchor-shotcrete supporting and shot anchor net
Supporting；
5 is firm general due to ore body, stays permanent point post to support Stope roof, after stope has been adopted, except going out for logical upper stage casing in stope
Outside QI KOU, rest channels are carried out with closed processes, or consideration production barren rock part bashing.
Embodiment 1：Guizhou ore deposit roof bolting shallow bore hole layering room and pillar stoping.
No. 2 ore bodies of certain one phase of ore deposit exploitation, 26.40 ° of mean obliquity, bed top country rock and immediate roof stability totality
Poor, floor rocks and immediate bottom stability preferably, belong to middle thick low-angle dip interlayer containing barren rock ore body, and barren rock interlayer needs
The uneasily mining orebody of rejecting.The lean green ore Mn geologic grades 13.21% in No. 2 ore body upper stratas, average thickness 2.77m；Lower floor's rich ore raw ore
Mn geologic grades 17.04%, average thickness 2.00m；The Mn geologic grades 6.25% of interlayer barren rock, average thickness 0.89m.In conjunction with certain
No. 2 ore body Ores of ore deposit and the real physical characteristics and grade of interlayer barren rock, No. 2 ore bodies are in the simultaneous premise that adopts of the lean rich ore of levels
Under, the horsestone between levels ore body should be rejected, just can guarantee that extracted ore can reach Beneficiation Feed Grade.
By being layered room and pillar stoping using roof bolting shallow bore hole, it is achieved that the thick low-angle dip ore deposit of interlayer containing barren rock in lower courtyard
Safe efficient, the low lean damage back production of body.
Claims (9)
1. thick low-angle dip ore block house column mining codes of interlayer containing barren rock in one kind, it is characterised in that：
Stope is arranged along orebody trend, lingers in continuous ore pillar, stope and be divided into some back production units, ore deposit along orebody trend between stope
Room width is ore body horizontal breadth；
Back production unit interior laminate layer is exploited, and using top-down stopping sequence, is first adopted overlying seam, and is stayed certain altitude ore bed
Using roof bolting, then the interlayer barren rock in the middle of upper and lower ore bed is rejected, last back production bottom ore bed；
Back production Self cleavage gallery is boosted, and work surface across strike is advanced toward opposite side from stope side in staged.
2. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1, it is characterised in that：Every 11
～13m is divided into a back production unit.
3. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1 and 2, it is characterised in that：Per
There are three back production units in individual stope while carrying out back production, each advanced spacing of back production unit is not less than 5m.
4. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1, it is characterised in that：Main by
People's row vent (-escape) raise, courtyard connecting taxiway, ore pass, cutting gallery and scraper winch chamber are constituted adopts cut journey.
5. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1 or 4, it is characterised in that：By
Level haulage gallery, people's row vent (-escape) raise and ore pass are constituted and adopt Barebone.
6. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1 or 4, it is characterised in that：Ore deposit
Stone is harrowed in Stope chute along seam pitch direction.
7. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1, it is characterised in that：In stope
Stay permanent spaced points post to support Stope roof, stay 0.5m or so ore beds shield top.
8. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1, it is characterised in that：Stope profit
With distinguished and admirable ventilation is run through, distinguished and admirable through level haulage gallery, people's row material aeration courtyard, courtyard connection roadway entrance stope, cleaning
Dirty wind after stope enters upper stage casing air return system by people's row vent (-escape) raise of nugget opposite side.
9. middle thick low-angle dip interlayer containing barren rock ore block house column mining codes according to claim 1,2,4,7 or 8, its feature exist
In：The method is applied to 20 ~ 30 ° of inclination angle, contains 0.5 ~ 1.2m barren rock interlayers in the middle of ore body 3 ~ 8m of vertical thickness, ore bed.
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| CN201710035565.7A CN106499396B (en) | 2017-01-18 | 2017-01-18 | Medium-thickness slowly-inclined waste rock-containing interlayer ore body room-column mining method |
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| CN201710035565.7A CN106499396B (en) | 2017-01-18 | 2017-01-18 | Medium-thickness slowly-inclined waste rock-containing interlayer ore body room-column mining method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905514A (en) * | 2019-11-23 | 2020-03-24 | 南宁学院 | Multi-layer inclined ore body ore waste separation and collaborative mining method |
| CN111075449A (en) * | 2019-12-23 | 2020-04-28 | 中国华冶科工集团有限公司 | Continuous mining method for unstable ore body |
| CN111608660A (en) * | 2020-06-03 | 2020-09-01 | 甘肃省天水李子金矿有限公司 | Mining method suitable for gold ore body with inclination angle of 50-55 degrees |
| CN111734415A (en) * | 2020-06-02 | 2020-10-02 | 湖北兴发化工集团股份有限公司 | Flexible pressure relief filling method for deep gentle-inclined ore body |
| CN113338936A (en) * | 2021-05-11 | 2021-09-03 | 紫金矿业集团股份有限公司 | Combined mining method for soft thin gangue layer separated non-steep-dip upper and lower ore layers |
| CN113738368A (en) * | 2021-09-05 | 2021-12-03 | 湖北杉树垭矿业有限公司 | Safe stoping method for non-continuous multilayer ore body |
| CN114718571A (en) * | 2022-04-15 | 2022-07-08 | 武汉理工大学 | Mining method suitable for close-range multilayer phosphate ore |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905514A (en) * | 2019-11-23 | 2020-03-24 | 南宁学院 | Multi-layer inclined ore body ore waste separation and collaborative mining method |
| CN111075449A (en) * | 2019-12-23 | 2020-04-28 | 中国华冶科工集团有限公司 | Continuous mining method for unstable ore body |
| CN111734415A (en) * | 2020-06-02 | 2020-10-02 | 湖北兴发化工集团股份有限公司 | Flexible pressure relief filling method for deep gentle-inclined ore body |
| CN111734415B (en) * | 2020-06-02 | 2022-06-21 | 湖北兴发化工集团股份有限公司 | Flexible pressure relief filling method for deep gently inclined ore body |
| CN111608660A (en) * | 2020-06-03 | 2020-09-01 | 甘肃省天水李子金矿有限公司 | Mining method suitable for gold ore body with inclination angle of 50-55 degrees |
| CN113338936A (en) * | 2021-05-11 | 2021-09-03 | 紫金矿业集团股份有限公司 | Combined mining method for soft thin gangue layer separated non-steep-dip upper and lower ore layers |
| CN113338936B (en) * | 2021-05-11 | 2023-02-28 | 紫金矿业集团股份有限公司 | Combined mining method for soft thin gangue layer separated non-steep-dip upper and lower ore layers |
| CN113738368A (en) * | 2021-09-05 | 2021-12-03 | 湖北杉树垭矿业有限公司 | Safe stoping method for non-continuous multilayer ore body |
| CN113738368B (en) * | 2021-09-05 | 2024-06-07 | 湖北杉树垭矿业有限公司 | Discontinuous multilayer ore body safe stoping method |
| CN114718571A (en) * | 2022-04-15 | 2022-07-08 | 武汉理工大学 | Mining method suitable for close-range multilayer phosphate ore |
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