CN107524444B - A kind of control blasting method for improving resuing stoping and falling mine efficiency - Google Patents
A kind of control blasting method for improving resuing stoping and falling mine efficiency Download PDFInfo
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- CN107524444B CN107524444B CN201710856936.8A CN201710856936A CN107524444B CN 107524444 B CN107524444 B CN 107524444B CN 201710856936 A CN201710856936 A CN 201710856936A CN 107524444 B CN107524444 B CN 107524444B
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- mine
- blasthole
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- once
- falling
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000005422 blasting Methods 0.000 title claims abstract description 37
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 239000011435 rock Substances 0.000 claims abstract description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 13
- 239000011707 mineral Substances 0.000 claims abstract description 13
- 238000005065 mining Methods 0.000 claims abstract description 10
- 238000004880 explosion Methods 0.000 claims description 12
- 238000005474 detonation Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses the control blasting method that a kind of raising resuing stoping falls mine efficiency, the methods are as follows: disk or lower wall country rock Drilling cliff blasthole on quasi- cliff once fall mine blasthole in mineral ore Drilling, implement once to fall mine shot hole blasting；Continue Drilling secondary falling mine blasthole in mineral ore, implements secondary falling mine shot hole blasting, concentrating mining；Implement cliff shot hole blasting, fills stope；So circulation is until entire block stoping finishes.Control blasting method of the present invention falls the Controlled blasting technique of cliff of mine by introducing in resuing stoping twice, considerably increases broken ore amount, hence it is evident that reduce barren rock mixed volume, improve resuing stoping falls mine efficiency.
Description
Technical field
The present invention relates to a kind of underground metal mines to control blasting method, more particularly, to a kind of mentioning suitable for narrow vein
High resuing stoping falls the control blasting method of mine efficiency.
Background technique
In non-ferrous metal and gold mine field, belong to extra narrow vein there are many mineral deposit, this part mineral ore is due to due to width
It spends small, to guarantee enough working spaces, back production is generally carried out using resuing stoping.
Existing scarps filling mining method (such as application No. is 201610067459.2, a kind of entitled narrow vein presplitting
Scarps filling mining method) in, mineral ore (country rock) of first avalanche, then country rock (mineral ore) waste fill of avalanche produces ore body
The space left, so circulation are until block stoping terminates.Although this method can be realized narrow vein ore-rock point and adopt, reduce thin
The working of lodes rate of dilution, but since mineral ore is narrow, causes to fall mine amount few, and barren rock is easily mixed into ore, and production efficiency is low,
Transport, promotion and beneficiation cost are increased simultaneously, the length of service of Tailings Dam is shortened, seriously restricts the development in mine, shadow
Ring the economic benefit of enterprise.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides a kind of raising resuing stopings to fall mine efficiency
Blasting method is controlled, with the avalanche amount of lifting ore, and barren rock mixed volume is considerably reduced, to improve resuing stoping
Fall mine efficiency.Technical scheme is as follows:
A kind of control blasting method for improving resuing stoping and falling mine efficiency, the control blasting method are quick-fried to fall mine twice
A broken and cliff explosion is a cycle period, and so circulation is until entire block stoping finishes.
The detailed process of the control blasting method are as follows: disk or lower wall country rock Drilling cliff blasthole on quasi- cliff, in mine
Arteries and veins Drilling once falls mine blasthole, implements once to fall mine shot hole blasting；Continue Drilling secondary falling mine blasthole in mineral ore, implements secondary falling
Mine shot hole blasting, concentrating mining；Implement cliff shot hole blasting, fills stope；So circulation is until entire block stoping finishes.
Further, before once falling mine explosion, the cliff blasthole whole Drilling of disk on quasi- cliff or lower wall country rock is finished；
Mine blasthole and directly powder charge detonation are once fallen in mineral ore Drilling, is fallen on mine ore storage after divulging information, then once after once detonation
Continue Drilling secondary falling mine blasthole, concentrating mining after explosion；Finally implement cliff shot hole blasting, avalanche country rock fills stope.
Further, it once falls mine blasthole and secondary falling mine blasthole total depth is equal to cliff blast hole depth, secondary falling mine big gun
Hole depth is 1.1 to 1.2 times for once falling mine blast hole depth.
Further, mine blasthole spacing and common resuing stoping identical, the secondary falling mine big gun that falls mine blasthole spacing are once fallen
Pitch of holes is 0.75 to 0.85 times for once falling mine blasthole spacing, and cliff blasthole spacing, which is less than or equal to, once falls mine blasthole spacing
2 times.
Further, once falling mine blast hole projectile filling coefficient and common resuing stoping, to fall mine blast hole projectile filling coefficient identical, and two
The secondary mine blast hole projectile filling coefficient that falls is 1.1 to 1.2 times for once falling mine blast hole projectile filling coefficient, cliff blast hole projectile filling coefficient with once fall
Mine blast hole projectile filling coefficient is identical.
Compared with prior art, the beneficial effects of the present invention are:
Control blasting method of the present invention falls the control of cliff of mine by introducing in resuing stoping twice
Blasting technique considerably increases broken ore amount, hence it is evident that reduces barren rock mixed volume, improve resuing stoping falls mine effect
Rate.
Detailed description of the invention
Fig. 1 is that of the present invention introduce in resuing stoping falls the Controlled blasting technique of cliff of mine twice and fall mine and show
Effect is intended to.
When Fig. 2 is that resuing stoping once falls mine, the arrangement schematic diagram of blasthole and cliff blasthole.
When Fig. 3 is resuing stoping secondary falling mine, the arrangement schematic diagram of blasthole.
Fig. 4 is I-I cross-sectional view in Fig. 2；
Fig. 5 is II-II cross-sectional view in Fig. 3.
In figure:
1- is quasi- to fall mine ore body, 2- intends cliff country rock, 3- bed course, 4- filling waste stone,
5- ore, 6- cliff blasthole, 7- once fall mine blasthole, 8- secondary falling mine blasthole.
Specific embodiment
For the technical solution that the present invention is further explained, in conjunction with Figure of description, a specific embodiment of the invention is as follows:
As shown in Figure 1, the present invention provides the control blasting method that a kind of raising resuing stoping falls mine efficiency, the control
Blasting method processed is that the Controlled blasting technique for falling cliff of mine twice is introduced in existing resuing stoping, and detailed process is such as
Under:
Firstly, intending disk or lower wall country rock Drilling cliff big gun on cliff as shown in Fig. 2, once fall mine blasthole in mineral ore Drilling
Hole once falls direct powder charge detonation in mine blasthole, implements once to fall mine shot hole blasting；
Then, as shown in figure 3, divulging information after once falling mine by enough time, then continue once falling on mine ore storage
Drilling secondary falling mine blasthole implements secondary falling mine shot hole blasting, concentrating mining after explosion；
Finally, implementing cliff shot hole blasting after concentrating mining, avalanche country rock fills stope；
So circulation above process, until entire block stoping finishes.
In the above process, as shown in Figures 2 and 3, the depth of the cliff blasthole of Drilling on quasi- cliff country rock are as follows: primary
Fall the secondary falling mine blasthole of Drilling during the depth and secondary falling mine for once falling mine blasthole of Drilling during mine depth it
With, and secondary falling mine blast hole depth is 1.1 to 1.2 times for once falling mine blast hole depth；
In the above process, as shown in Figure 4 and Figure 5, Drilling once falls mine blasthole during the present invention once falls mine
Spacing and identical, Drilling during secondary falling mine of the present invention that falls mine blasthole spacing during traditional common resuing stoping
The spacing of secondary falling mine blasthole be 0.75 to 0.85 times for once falling mine blasthole spacing；
In the above process, the coefficient of charge for once falling mine blasthole that the present invention is once fallen during mine and traditional common cut
The coefficient of charge that wall filling method falls mine blasthole is identical, and the coefficient of charge of the secondary falling mine blasthole during secondary falling mine of the present invention is
Once fall 1.1 to 1.2 times of the coefficient of charge of mine blasthole；
In the above process, as shown in figure 4, the spacing of the cliff blasthole of Drilling is less than or equal to once on quasi- cliff country rock
2 times of mine blasthole spacing are fallen, the coefficient of charge of cliff blasthole is identical as the coefficient of charge for once falling mine blasthole.
In above-mentioned control blasting process, it should be noted that before falling mine explosion once, need disk on quasi- cliff or
The cliff blasthole whole Drilling construction of lower wall country rock finishes, and then once mine and secondary falling mine is fallen followed by successively progress, with reality
After existing concentrating mining, disposable avalanche country rock fills stope.
The control blasting method that mine efficiency is fallen using above-mentioned raising resuing stoping passes through the company of introducing in resuing stoping
The continuous Controlled blasting technique for falling cliff of mine twice, considerably increases broken ore amount, hence it is evident that reduce barren rock mixed volume, mention
Risen resuing stoping falls mine efficiency.
The safety notice of the present invention in the construction process is as follows:
1, should check Stope roof situation before constructing, be tapped, it is ensured that top plate without inbreak it is dangerous after can operation；
2, Drilling once falls mine blasthole, secondary falling mine blasthole and cliff blasthole, loads the processes such as explosive and explosion and strictly presses
It designs and executes according to stope explosion；
3, other safety notices are executed according to national relevant laws and regulations.
Claims (2)
1. a kind of control blasting method for improving resuing stoping and falling mine efficiency, it is characterised in that:
The control blasting method is to fall mine explosion and a cliff explosion twice as a cycle period, and so circulation is until whole
A block stoping finishes；
The detailed process of the control blasting method are as follows: disk or lower wall country rock Drilling cliff blasthole on quasi- cliff are bored in mineral ore
Chisel once falls mine blasthole, implements once to fall mine shot hole blasting；Continue Drilling secondary falling mine blasthole in mineral ore, implements secondary falling mine big gun
Hole explosion, concentrating mining；Implement cliff shot hole blasting, fills stope；So circulation is until entire block stoping finishes；
It once falls mine blasthole and secondary falling mine blasthole total depth is equal to cliff blast hole depth, secondary falling mine blast hole depth is once to fall
1.1 to 1.2 times of mine blast hole depth；
Once falling mine blasthole spacing and common resuing stoping, to fall mine blasthole spacing identical, and secondary falling mine blasthole spacing is once falls
0.75 to 0.85 times of mine blasthole spacing, cliff blasthole spacing, which is less than or equal to, once falls 2 times of mine blasthole spacing；
Once fall mine blast hole projectile filling coefficient and common resuing stoping identical, the secondary falling mine blast hole projectile filling that falls mine blast hole projectile filling coefficient
Coefficient is 1.1 to 1.2 times for once falling mine blast hole projectile filling coefficient, and cliff blast hole projectile filling coefficient falls mine blast hole projectile filling coefficient with primary
It is identical.
2. a kind of control blasting method for improving resuing stoping and falling mine efficiency as described in claim 1, it is characterised in that:
Before once falling mine explosion, the cliff blasthole whole Drilling of disk on quasi- cliff or lower wall country rock is finished；
Mine blasthole and directly powder charge detonation are once fallen in mineral ore Drilling, is falling mine ore after divulging information, then primary after once detonation
Continue Drilling secondary falling mine blasthole, concentrating mining after explosion on heap；
Finally implement cliff shot hole blasting, avalanche country rock fills stope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856936.8A CN107524444B (en) | 2017-09-18 | 2017-09-18 | A kind of control blasting method for improving resuing stoping and falling mine efficiency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856936.8A CN107524444B (en) | 2017-09-18 | 2017-09-18 | A kind of control blasting method for improving resuing stoping and falling mine efficiency |
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| Publication Number | Publication Date |
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| CN107524444A CN107524444A (en) | 2017-12-29 |
| CN107524444B true CN107524444B (en) | 2019-03-05 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678745A (en) * | 2018-05-11 | 2018-10-19 | 长春黄金研究院有限公司 | A kind of narrow vein concrete bed course scarps filling mining method |
| CN110617065B (en) * | 2019-10-14 | 2021-09-07 | 中钢集团马鞍山矿山研究总院股份有限公司 | Stope structure arrangement mode of steep-dip extremely-thin ore vein cut-wall filling mining method |
| CN110566206B (en) * | 2019-10-14 | 2021-09-07 | 中钢集团马鞍山矿山研究总院股份有限公司 | Separate mining and filling mining method for upper and lower cut walls of rock ores with steeply inclined extremely thin veins |
| CN114412467B (en) * | 2022-01-25 | 2022-10-25 | 长沙矿山研究院有限责任公司 | Top-bottom medium-length hole subsequent filling mining method for thin ore body |
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|---|---|---|---|---|
| CN102331212A (en) * | 2011-09-07 | 2012-01-25 | 薛世忠 | Loss and dilution controlled blasting method for open metal mine |
| CN103017621A (en) * | 2012-11-29 | 2013-04-03 | 青海山金矿业有限公司 | Blasting method for reducing depletion in steeply inclined thin ore body recovery |
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| CN105649626A (en) * | 2016-01-26 | 2016-06-08 | 西安建筑科技大学 | Underholing type wall-cutting cut-and-filling stoping method for mining steep ultrathin vein 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 |
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2017
- 2017-09-18 CN CN201710856936.8A patent/CN107524444B/en active Active
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| CN102331212A (en) * | 2011-09-07 | 2012-01-25 | 薛世忠 | Loss and dilution controlled blasting method for open metal mine |
| CN103017621A (en) * | 2012-11-29 | 2013-04-03 | 青海山金矿业有限公司 | Blasting method for reducing depletion in steeply inclined thin ore body recovery |
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Address after: 130012 nanhu road, Jilin, Changchun, No. 6760 Patentee after: CHANGCHUN GOLD RESEARCH INSTITUTE Co.,Ltd. Address before: 130012 nanhu road, Jilin, Changchun, No. 6760 Patentee before: CHANGCHUN GOLD Research Institute |