CN107829741A - Mining method of gently inclined thin ore body - Google Patents
Mining method of gently inclined thin ore body Download PDFInfo
- Publication number
- CN107829741A CN107829741A CN201711208343.7A CN201711208343A CN107829741A CN 107829741 A CN107829741 A CN 107829741A CN 201711208343 A CN201711208343 A CN 201711208343A CN 107829741 A CN107829741 A CN 107829741A
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- China
- Prior art keywords
- ore body
- nugget
- recovery method
- slight slope
- support frame
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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 method of mineral, and in particular to a kind of slight slope and thin ore body recovery method.
Background technology
Slight slope and thin ore body is often referred to inclination angle less than 15 °, and orebody thickness is less than 3m ore body, comprehensive coloured, yellow both at home and abroad
Gold, uranium mine experience with mining, Steep Dipping Ore Body Extraction exploitation are more using mining and house column mining method, but above two mining side comprehensively
Method is required to stay presses with setting substantial amounts of ore pillar control, causes larger ore losses.Can be effective it is therefore desirable to find one kind
Control ground pressure and can reduces a kind of a kind of new slight slope and thin ore body recovery method of ore losses.
The content of the invention
The purpose of the present invention is that a kind of slight slope and thin ore body recovery method is provided the problem of presence for prior art.
The concrete technical scheme of the present invention is as follows：
A kind of slight slope and thin ore body recovery method, it is characterised in that comprise the following steps：
A, nugget is divided：By ore body division it is nugget along orebody trend, nugget is longwall arrangement, across pitch division point in nugget
Bar, vertically division layering；Stayed in nugget and set foundation, studding and fore-set；
B, quasi- cutting is adopted：By stage transportation roadway, tunneling ventilation pedestrian goes up a hill and transported in supreme stage casing arteries and veins in the studding of nugget both ends
Lane, driving slitting electric scraper discharging road to fore-set；From ventilation pedestrian's raise advance layering rock drilling gallery, to the slitting electricity close to end
Rake off drive and 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, by
Scraper scraping goes out stope；Cliff is carried out to gob floor, caused barren rock is piled up in goaf side, and sets up barren rock gear
Wall, barren rock barricade form new by ore deposit space with the goaf opposite side behind clear bottom；With the propulsion of slitting, constantly move forward
Barren rock barricade；
D, underground pressure management：Supporting is carried out to goaf using hydraulic prop, hydraulic prop is continuous forward with the propulsion of working face
It is mobile, 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, fore-set is domed, fore-set thickness 3-6m；
In the step b, electric scraper discharging road is less than fore-set bottom plate 0.5-0.8m.
The barren rock barricade is made up of support frame, covering and air bag, and grid, gas are evenly arranged with the support frame
Capsule is located in the grid of support frame, and covering coats support frame in the inner；
The grid specification of the support frame is 600mm*800mm*1000m；
The support frame uses lightweight hard alloy material, and air bag uses quality of rubber materials, and covering thickeies canvas material using impact resistance
Matter；
Gas injection device is provided with the air bag.
The present invention has following beneficial aspects：
The present invention be applied to slight slope and thin ore body exploit, its technical thought be using slitting, longwall separate zone production mode from
On downwards to ore carry out bench formula exploitation；Cliff is carried out to gob floor, caused barren rock is piled up outside the barricade of goaf
Side；Supporting is carried out to goaf using hydraulic prop, hydraulic prop constantly moves forward with the propulsion of working face, utilizes nature
Avalanche or avalanche mode of caunching are handled top plate；The present invention recovery method combine breasting method, scarps filling mining method,
The advantages of Handling by blast force method, Caving Method with Large Space, can the maximum amount of recovery ore, and handled ground pressure harm, solve single mining
The deficiency of method.
Brief description of the drawings
Fig. 1 is the nugget arrangement and structural representation of a kind of slight slope and thin ore body recovery method of the present invention；
Fig. 2 is Fig. 1 upward view；
Fig. 3 is the structural representation of the barren rock barricade of the present invention.
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
Orebody thickness belongs to typical slight slope and thin ore body in below 0.8m, and original use room and pillar caving, for reduction depletion loss rate,
The ore deposit is exploited using the recovery method of the present invention, nugget arrangement and structural representation are as depicted in figs. 1 and 2, specific to walk
It is rapid as follows：
A, nugget is divided：By ore body division it is nugget along orebody trend, nugget is longwall arrangement, across pitch division point in nugget
Bar, vertically division layering, nugget high 60m, wide 100m；Stayed in nugget and set foundation 1, studding 2 and fore-set 3, the bottom
1 thick 5m of post, 2 wide 3m of studding, fore-set 3 is domed, 3 thick 6m of fore-set；
B, quasi- cutting engineering is adopted：By stage transportation roadway 4, tunneling ventilation pedestrian goes up a hill 5 supreme stage casing arteries and veins in nugget both ends studding 2
Interior transportation roadway 6, driving slitting electric scraper discharging road 7 is to fore-set 3, and slitting electric scraper discharging road 7 is less than the bottom plate 0.8m of fore-set 3；From
Ventilation pedestrian goes up a hill 5 drivings layering rock drilling gallery 8, to carrying out brushing close to the slitting electric scraper discharging road 7 of end, as back production work
The cutting room of work；
C, back production ore removal engineering：By the horizontal fan shaped medium length hole 9 of Drilling, pinpoint blasting to electric scraper discharging road in layering rock drilling gallery 8
7, stope is gone out by scraper scraping；Cliff is carried out to gob floor, caused barren rock 13 is piled up in goaf side, and sets up useless
Stone barricade 10, barren rock barricade 10 form new by ore deposit space with the goaf opposite side behind clear bottom；With the propulsion of slitting, constantly
Move forward barren rock barricade 10；
D, underground pressure management：Using hydraulic prop 11 to goaf carry out supporting, hydraulic prop with working face propulsion constantly to
Preceding movement, caunched the avalanche top plate of blasthole 12 using free breakage or Drilling, form waste rock overburden 14.
The barren rock barricade 10 of the present invention is made up of support frame 10-1, covering 10-2 and air bag 10-3 as shown in Figure 3, described
Grid is evenly arranged with support frame 10-1, air bag 10-3 is located in support frame 10-1 grid, and covering 10-2 will be supported
Framework 10-1 is coated in the inner；The grid specification of the support frame 10-1 is 600mm*800mm*1000m；The support frame
10-1 uses lightweight hard alloy material, and air bag 10-3 uses quality of rubber materials, and covering 10-2 thickeies canvas material using impact resistance；Institute
State and be provided with gas injection device on air bag 10-3.
Claims (8)
1. a kind of slight slope and thin ore body recovery method, it is characterised in that comprise the following steps：
A, nugget is divided：By ore body division it is nugget along orebody trend, nugget is longwall arrangement, across pitch division point in nugget
Bar, vertically division layering；Stayed in nugget and set foundation (1), studding (2) and fore-set (3)；
B, quasi- cutting is adopted：Gone up a hill (5) supreme stage casing in the interior tunneling ventilation pedestrian of nugget both ends studding (2) by stage transportation roadway (4)
Transportation roadway (6) in arteries and veins, tunnel slitting electric scraper discharging road (7) to fore-set (3)；From ventilation pedestrian go up a hill (5) driving layering rock drilling put down
Lane (8), to carrying out brushing, the cutting room as actual mining close to the slitting electric scraper discharging road (7) of end；
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), stope is gone out by scraper scraping；Cliff is carried out to gob floor, caused barren rock (13) is piled up in goaf side,
And barren rock barricade (10) is set up, barren rock barricade (10) forms new by ore deposit space with the goaf opposite side behind clear bottom；With point
The propulsion of bar, constantly move 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
Move forward, caunched blasthole (12) avalanche top plate using free breakage or Drilling, form waste rock overburden (14).
A kind of 2. slight slope and thin ore body recovery method as claimed in claim 1, it is characterised in that：In the step a, nugget is high
45-80m, wide 60-100m.
A kind of 3. slight slope and thin ore body recovery method as claimed in claim 1, it is characterised in that：In the step a, foundation
(1) thick 5-10m, studding (2) wide 2-5m, fore-set (3) is domed, fore-set (3) thick 3-6m.
A kind of 4. slight slope and thin ore body recovery method as claimed in claim 1, it is characterised in that：In the step b, scraper goes out
Drive (7) is less than fore-set (3) bottom plate 0.5-0.8m.
A kind of 5. slight slope and thin ore body recovery method as claimed in claim 1, it is characterised in that：The barren rock barricade (10) by
Support frame (10-1), covering (10-2) and air bag (10-3) composition, the support frame (10-1) is interior to be evenly arranged with grid,
Air bag (10-3) is located in the grid of support frame (10-1), and covering (10-2) coats support frame (10-1) in the inner.
A kind of 6. slight slope and thin ore body recovery method as claimed in claim 5, it is characterised in that：The support frame (10-1)
Grid specification be 600mm*800mm*1000m.
A kind of 7. slight slope and thin ore body recovery method as claimed in claim 5, it is characterised in that：The support frame (10-1)
Using lightweight hard alloy material, air bag (10-3) uses quality of rubber materials, and covering (10-2) thickeies canvas material using impact resistance.
A kind of 8. 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 |
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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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| 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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| CN107829741A true CN107829741A (en) | 2018-03-23 |
| CN107829741B CN107829741B (en) | 2019-07-05 |
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Cited By (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 |
| CN110761793A (en) * | 2019-11-22 | 2020-02-07 | 西北矿冶研究院 | High-efficiency large-scale mining method for low-grade slowly-inclined thin ore body |
| CN110886613A (en) * | 2019-11-22 | 2020-03-17 | 西北矿冶研究院 | Mechanized continuous hard rock mining method |
| CN110952981A (en) * | 2019-11-14 | 2020-04-03 | 南华大学 | Residual ore mining method for gently inclined medium-thick and large ore body |
| CN111156018A (en) * | 2019-12-26 | 2020-05-15 | 临沂会宝岭铁矿有限公司 | Grooving method for 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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Cited By (7)
| 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 |
| CN110952981A (en) * | 2019-11-14 | 2020-04-03 | 南华大学 | Residual ore mining method for gently inclined medium-thick and large ore body |
| CN110761793A (en) * | 2019-11-22 | 2020-02-07 | 西北矿冶研究院 | High-efficiency large-scale mining method for low-grade slowly-inclined thin ore body |
| CN110886613A (en) * | 2019-11-22 | 2020-03-17 | 西北矿冶研究院 | Mechanized continuous hard rock mining method |
| CN111156018A (en) * | 2019-12-26 | 2020-05-15 | 临沂会宝岭铁矿有限公司 | Grooving method for cutting groove of chamber |
| 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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| CN107829741B (en) | 2019-07-05 |
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