CN107829741B - Mining method of gently inclined thin ore body - Google Patents
Mining method of gently inclined thin ore body Download PDFInfo
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- CN107829741B CN107829741B CN201711208343.7A CN201711208343A CN107829741B CN 107829741 B CN107829741 B CN 107829741B CN 201711208343 A CN201711208343 A CN 201711208343A CN 107829741 B CN107829741 B CN 107829741B
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- ore body
- nugget
- recovery method
- slight slope
- thin ore
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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
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
Abstract
The invention relates to a mining method of minerals, in particular to a mining method of gently inclined thin minerals. The mining method comprises ore block division, mining accurate cutting engineering, stoping ore removal engineering and ground pressure management; the mining method integrates the advantages of a comprehensive method, a cut-wall filling mining method, an explosive force carrying method and a caving method, can recover the ore at the maximum amount, treats the ground pressure hazard and overcomes the defects of a single mining method.
Description
Technical field
The present invention relates to a kind of recovery methods of mineral, and in particular to a kind of slight slope and thin ore body recovery method.
Background technique
Slight slope and thin ore body is often referred to inclination angle less than 15 °, and orebody thickness is less than the ore body of 3m, comprehensive coloured, yellow both at home and abroad
Gold, uranium mine experience with mining, Steep Dipping Ore Body Extraction exploitation mostly use mining and house column mining method, but above two mining side comprehensively
Method is required to stay presses with setting a large amount of ore pillar control, causes biggish ore losses.It can be effective it is therefore desirable to find one kind
Control ground pressure can be reduced a kind of a kind of new slight slope and thin ore body recovery method of ore losses again.
Summary of the invention
In order to solve the problems in the prior art, the purpose of the present invention is to provide a kind of slight slope and thin ore body recovery method.
The specific technical solution of the present invention is as follows:
A kind of slight slope and thin ore body recovery method, which comprises the following steps:
A, it divides nugget: by ore body division being nugget along orebody trend, nugget is that longwall is arranged, across pitch stroke in nugget
Divide slitting, vertically divides layering；It is stayed in nugget and sets foundation, studding and top pillar；
B, adopt quasi- cutting: by stage transportation roadway, tunneling ventilation pedestrian goes up a hill and transports in supreme middle section arteries and veins in the studding of nugget both ends
Defeated lane, driving slitting electric scraper discharging road to top pillar；It is layered rock drilling gallery from ventilation pedestrian's raise advance, to close to nugget right part
Slitting electric scraper discharging road carry out brushing, the cutting room as actual mining；
C, back production ore removal: by the horizontal fan shaped medium length hole of Drilling in layering rock drilling gallery, pinpoint blasting to slitting electric scraper discharging
Road goes out stope by scraper scraping；Cliff is carried out to gob floor, the barren rock of generation is piled up in goaf side, and is set up useless
The goaf other side behind stone barricade, barren rock barricade and clear bottom forms new by mine space；With the propulsion of slitting, constantly forward
Mobile barren rock barricade；
D, underground pressure management: supporting is carried out to goaf using hydraulic prop, hydraulic prop is continuous with the propulsion of working face
It moves forward, is caunched blasthole avalanche top plate using free breakage or Drilling, form waste rock overburden.
In the step a, nugget high 45-80m, wide 60-100m；
In the step a, foundation thickness 5-10m, the wide 2-5m of studding, top pillar is domed, top pillar thickness 3-6m；
In the step b, slitting electric scraper discharging road is lower than top pillar bottom plate 0.5-0.8m.
The barren rock barricade is made of braced frame, covering and air bag, and grid, gas are evenly arranged in the braced frame
Capsule is located in the grid of braced frame, and covering coats braced frame in the inner；
The grid specification of the braced frame is 600mm*800mm*1000m；
The braced frame uses lightweight hard alloy material, and air bag uses rubber material, and covering thickeies sail using impact resistance
Cloth material；
Gas injection device is provided on the air bag.
The present invention has following beneficial aspects:
The present invention is exploited suitable for slight slope and thin ore body, and technical thought is to use slitting, longwall separate zone production side
Formula carries out the exploitation of bench formula to ore from the top down；Cliff is carried out to gob floor, the barren rock of generation is piled up to be kept off in goaf
On the outside of wall；Supporting is carried out to goaf using hydraulic prop, hydraulic prop is constantly moved forward with the propulsion of working face, is utilized
Free breakage or avalanche mode of caunching handle top plate；Recovery method of the invention combines breasting method, Nitrate uptake is adopted
The advantages of mine method, Handling by blast force method, Caving Method with Large Space, can the maximum amount of recycling ore, and handled ground pressure harm, solve single
The deficiency of mining methods.
Detailed description of the invention
Fig. 1 is the nugget arrangement and structural schematic diagram of a kind of slight slope and thin ore body recovery method of the invention；
Fig. 2 is the bottom view of Fig. 1；
Fig. 3 is the structural schematic diagram of barren rock barricade of the invention.
Specific embodiment
Xinjiang copper mine Ore body morphology is in like stratiform, 18 ° -25 ° of the slanting angle of ore body, orebody thickness about 0.7-1.2m, major part
For orebody thickness in 0.8m hereinafter, belonging to typical slight slope and thin ore body, original uses room and pillar caving, to reduce depletion loss rate,
The mine is exploited using recovery method of the invention, nugget arrangement and structural schematic diagram are as depicted in figs. 1 and 2, specific to walk
It is rapid as follows:
A, it divides nugget: by ore body division being nugget along orebody trend, nugget is that longwall is arranged, across pitch stroke in nugget
Divide slitting, vertically divides layering, nugget high 60m, wide 100m；It is stayed in nugget and sets foundation 1, studding 2 and top pillar 3, institute
1 thickness 5m of foundation is stated, 2 width 3m of studding, top pillar 3 is domed, 3 thickness 6m of top pillar；
B, adopt quasi- cutting engineering: by stage transportation roadway 4 in nugget both ends studding 2 tunneling ventilation pedestrian go up a hill 5 it is supreme in
Transportation roadway 6 in section arteries and veins, driving slitting electric scraper discharging road 7 to top pillar 3, and slitting electric scraper discharging road 7 is lower than 3 bottom plate of top pillar
0.8m；It goes up a hill 5 drivings layering rock drilling gallery 8 from ventilation pedestrian, is brushed to close to the slitting electric scraper discharging road 7 of nugget right part
Side, the cutting room as actual mining；
C, back production ore removal engineering: by the horizontal fan shaped medium length hole 9 of Drilling in layering rock drilling gallery 8, pinpoint blasting to slitting electricity
Drive 7 is raked off, stope is gone out by scraper scraping；Cliff is carried out to gob floor, the barren rock 13 of generation is piled up in goaf side,
And barren rock barricade 10 is set up, the goaf other side after barren rock barricade 10 and clear bottom forms new by mine space；With slitting
It promotes, constantly moves forward barren rock barricade 10；
D, underground pressure management: using hydraulic prop 11 to goaf carry out supporting, hydraulic prop with working face propulsion not
It is disconnected to move forward, it is caunched 12 avalanche top plate of blasthole using free breakage or Drilling, forms waste rock overburden 14.
Barren rock barricade 10 of the invention is made of braced frame 10-1, covering 10-2 and air bag 10-3 as shown in Figure 3, described
Grid is evenly arranged in braced frame 10-1, air bag 10-3 is located in the grid of braced frame 10-1, and covering 10-2 will be supported
Frame 10-1 is coated in the inner；The grid specification of the braced frame 10-1 is 600mm*800mm*1000m；The braced frame
10-1 uses lightweight hard alloy material, and air bag 10-3 uses rubber material, and covering 10-2 thickeies canvas material using impact resistance；Institute
It states and is provided with gas injection device on air bag 10-3.
Claims (8)
1. a kind of slight slope and thin ore body recovery method, which comprises the following steps:
A, it divides nugget: by ore body division being nugget along orebody trend, nugget is that longwall is arranged, across pitch, which divides, in nugget divides
Item vertically divides layering；It is stayed in nugget and sets foundation (1), studding (2) and top pillar (3)；
B, it adopts quasi- cutting: being gone up a hill (5) supreme middle section by stage transportation roadway (4) in the interior tunneling ventilation pedestrian of nugget both ends studding (2)
Slitting electric scraper discharging road (7) to top pillar (3) are tunneled in transportation roadway (6) in arteries and veins；It is flat from ventilation pedestrian (5) driving layering rock drilling of going up a hill
Lane (8) carries out brushing to the slitting electric scraper discharging road (7) close to nugget right part, the cutting room as actual mining；
C, back production ore removal: by the horizontal fan shaped medium length hole of layering rock drilling gallery (8) interior Drilling (9), pinpoint blasting to slitting scraper goes out
Drive (7) goes out stope by scraper scraping；Cliff is carried out to gob floor, the barren rock (13) of generation is piled up in goaf side,
And barren rock barricade (10) are set up, the goaf other side after barren rock barricade (10) and clear bottom forms new by mine space；With point
The propulsion of item constantly moves forward barren rock barricade (10)；
D, underground pressure management: supporting is carried out to goaf using hydraulic prop (11), hydraulic prop is continuous with the propulsion of working face
It moves forward, is caunched blasthole (12) avalanche top plate using free breakage or Drilling, formed waste rock overburden (14).
2. a kind of slight slope and thin ore body recovery method as described in claim 1, it is characterised in that: in the step a, nugget is high
45-80m, wide 60-100m.
3. a kind of slight slope and thin ore body recovery method as described in claim 1, it is characterised in that: in the step a, foundation
(1) thickness 5-10m, studding (2) width 2-5m, top pillar (3) is domed, top pillar (3) thickness 3-6m.
4. a kind of slight slope and thin ore body recovery method as described in claim 1, it is characterised in that: in the step b, slitting electricity
Drive (7) are raked off lower than top pillar (3) bottom plate 0.5-0.8m.
5. a kind of slight slope and thin ore body recovery method as described in claim 1, it is characterised in that: the barren rock barricade (10) by
Braced frame (10-1), covering (10-2) and air bag (10-3) composition, the braced frame (10-1) is interior to be evenly arranged with grid,
Air bag (10-3) is located in the grid of braced frame (10-1), and covering (10-2) coats braced frame (10-1) in the inner.
6. a kind of slight slope and thin ore body recovery method as claimed in claim 5, it is characterised in that: the braced frame (10-1)
Grid specification be 600mm*800mm*1000m.
7. a kind of slight slope and thin ore body recovery method as claimed in claim 5, it is characterised in that: the braced frame (10-1)
Using lightweight hard alloy material, air bag (10-3) uses rubber material, and covering (10-2) thickeies canvas material using impact resistance.
8. a kind of slight slope and thin ore body recovery method as claimed in claim 5, it is characterised in that: set on the air bag (10-3)
It is equipped with gas injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208343.7A CN107829741B (en) | 2017-11-27 | 2017-11-27 | Mining method of gently inclined thin ore body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711208343.7A CN107829741B (en) | 2017-11-27 | 2017-11-27 | Mining method of gently inclined thin ore body |
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| Publication Number | Publication Date |
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| CN107829741A CN107829741A (en) | 2018-03-23 |
| CN107829741B true CN107829741B (en) | 2019-07-05 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661645A (en) * | 2018-03-29 | 2018-10-16 | 安徽马钢张庄矿业有限责任公司 | The method of end lean ore body back production |
| CN110952981B (en) * | 2019-11-14 | 2021-02-26 | 南华大学 | Residual ore mining method for gently inclined medium-thick and large ore body |
| CN110886613A (en) * | 2019-11-22 | 2020-03-17 | 西北矿冶研究院 | Mechanized continuous hard rock mining method |
| CN110761793B (en) * | 2019-11-22 | 2021-04-20 | 西北矿冶研究院 | High-efficiency large-scale mining method for low-grade slowly-inclined thin ore body |
| CN111156018B (en) * | 2019-12-26 | 2021-07-23 | 临沂会宝岭铁矿有限公司 | Drilling device for blasting and method for forming cutting groove of chamber |
| RU2750009C1 (en) * | 2020-11-19 | 2021-06-21 | Федеральное государственное автономное образовательное учреждение высшего образования "Северо-Восточный федеральный университет имени М.К.Аммосова" | Method for developing thawed placers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1162690A (en) * | 1996-04-12 | 1997-10-22 | 崔正洙 | Underground mining process |
| CN103953344B (en) * | 2014-04-30 | 2016-03-09 | 金川集团股份有限公司 | To route layering cemented filling method under one |
| CN104453900A (en) * | 2014-11-28 | 2015-03-25 | 贵州晨辉达矿业工程设计有限公司 | Filling mining method of near-horizontal ore body |
| CN105298492B (en) * | 2015-11-03 | 2017-07-28 | 化工部长沙设计研究院 | Exploit the house column type mining methods of slight slope and thin ore body |
| CN105735996A (en) * | 2016-02-01 | 2016-07-06 | 中南大学 | Presplitting type wall cutting and filling stoping method for thin ore vein |
| CN106089205A (en) * | 2016-08-19 | 2016-11-09 | 贵州晨辉达矿业工程设计有限公司 | A kind of room-and-pillar method filling mining method being applicable to very thin ore body under water body |
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