CN105649626A - Underholing type wall-cutting cut-and-filling stoping method for mining steep ultrathin vein ore body - Google Patents
Underholing type wall-cutting cut-and-filling stoping method for mining steep ultrathin vein ore body Download PDFInfo
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- CN105649626A CN105649626A CN201610051510.0A CN201610051510A CN105649626A CN 105649626 A CN105649626 A CN 105649626A CN 201610051510 A CN201610051510 A CN 201610051510A CN 105649626 A CN105649626 A CN 105649626A
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- ore
- borehole
- stope
- ore body
- ore deposit
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- 238000005065 mining Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 16
- 210000003462 vein Anatomy 0.000 title claims abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 28
- 239000002360 explosive Substances 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000005422 blasting Methods 0.000 claims abstract description 4
- 238000004880 explosion Methods 0.000 claims description 11
- 210000001367 artery Anatomy 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 7
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 238000010790 dilution Methods 0.000 abstract description 4
- 239000012895 dilution Substances 0.000 abstract description 4
- 238000012216 screening Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000000243 solution 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to an underholing type wall-cutting cut-and-filling stoping method for a mining steep ultrathin vein ore body. The method comprises the steps that after a stope footwalling space is formed, an ultrathin vein ranging from 100 mm to 600 mm is collapsed in an inclined parallel shallow hole parallel cut mode, a free surface in the inclined direction of ore collapsing is formed firstly, and then the hanging wall wall rock is cut on the wall by 900-400 mm in thickness at a time to fill a stope so that the width of the stope can meet the requirement for construction of ore collapsing, drilling and blasting; to ensure that underholing succeeds and sorting, coarse crushing and intermediate crushing do not need to be carried out on the collapsed ore body, a row of hollow holes which are not loaded with explosives are formed between two rows of inclined parallel cut holes if the thickness of the ore body is larger than 300 mm, and most wall rock in the mined ore body can be directly removed after screening of a concentrating mill. Thus, the dilution ratio is greatly decreased, and it is ensured that the selected grade meets the requirement for economical and efficient exploitation. The underholing type wall-cutting cut-and-filling stoping method is an integrated innovation for a wall-cutting cut-and-filling stoping method and underholing type exploding ore collapsing.
Description
Technical field
The invention belongs to mining technique field, particularly to the slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of a kind of high-dipping.
Background technology
When working thickness is between the very thin swift pulse inclined orebody of 100��600mm, if the country rock of the not thick about 400��900mm of Nitrate uptake, personnel and equipment cannot be introduced into Stope face shallow bore hole and falls ore deposit. Applying resuing stoping in the past, by uniform to ore body and certain thickness country rock explosion waste lifting stope, then shrink French ore removal, such rate of dilution has exceeded 100��400%, extremely reduces the economic worth of orebody mining.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide the slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of a kind of high-dipping, the present invention is that scarps filling mining method and slotting formula explosion fall the integrated innovation in ore deposit.
To achieve these goals, the technical solution used in the present invention is:
The slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of high-dipping, when orebody thickness is not more than 300mm, warding off Lou and the tailing edge stope trend dip-parallel straight eye of dish, lower wall separating surface on ore body that undercuts arranges that two row's slotting formulas fall ore deposit borehole 3, first section of slotting formula of detonating falls ore deposit borehole 3, while pulverizing ore body, form the free space of cliff borehole 1 avalanche country rock waste lifting stope along ore body incline direction; Second segment detonates to be arranged in armor rock and be about the one of 600��700mm from the marginal distance of dish on ore body and arranges the cliff borehole 1 avalanche country rock of dip-parallel layout again, in order to Width of stope meets and falls the construction equipments such as ore deposit driling explosion and personnel enter the requirement of stope.
The another kind of form of the present invention, orebody thickness is when 300��600mm, warding off Lou and the tailing edge stope trend dip-parallel straight eye of dish, lower wall separating surface on ore body that undercuts arranges that two row's slotting formulas fall ore deposit borehole 3, and arrange parallel hollow eye 4 in this two rows slotting formula ore deposit borehole 3 intermediate arrangement one that falls, first section of slotting formula of detonating ore deposit borehole 3, second segment 1 volume explosive bottom hollow eye 4 that detonates that falls is dished out ore body, while pulverizing ore body, form the free space of cliff borehole 1 avalanche country rock waste lifting stope along ore body incline direction;3rd section detonates to be arranged in armor rock and be about the one of 400��700mm from the marginal distance of dish on ore body and arranges the cliff borehole 1 avalanche country rock of dip-parallel layout again, in order to Width of stope meets and falls the construction equipments such as ore deposit driling explosion and personnel enter the requirement of stope.
The fall degree of depth of ore deposit borehole 3 of described slotting formula is generally 2.2m, and the degree of depth of described cliff borehole 1 is generally 2m.
The degree of depth of described hollow eye 4 is generally 2.4m, in order to 1 volume explosive of hollow eye 4 optical fundus portion dress slotting formula fall ore deposit borehole 3 detonate after second segment short-delay blasting and assist Ore of dishing out, hollow eye 4 also serves as slotting formula and falls the explosion free space of ore deposit borehole 3.
Compared with prior art, the invention has the beneficial effects as follows:
1) although slotting eye falls, ore deposit consumes explosive more, but has pulverized ore body, in ore dressing process generally need not coarse crushing and in broken, can significantly save broken and ore grinding expense;
2) the cliff borehole of second segment or the 3rd section of dip-parallel layout of row being arranged in armor rock of detonating, the country rock that can make most avalanche remains big bulk, thus directly rejecting bulk country rock by front screening in small, broken bits, the selected rate of dilution is greatly lowered, improves the extraction value of ore body.
Accompanying drawing explanation
Fig. 1 is the orebody thickness of the present invention orthographic projection view when being not more than 300mm.
Fig. 2 is orebody thickness side view when being not more than 300mm.
Fig. 3 is orebody thickness horizontal projection when being not more than 300mm.
Fig. 4 is the orebody thickness of the present invention orthographic projection view when 300��600mm.
Fig. 5 is orebody thickness side view when 300��600mm.
Fig. 6 is orebody thickness horizontal projection when 300��600mm.
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with drawings and Examples.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, if orebody thickness is not more than 300mm, warding off Lou and the tailing edge stope trend dip-parallel straight eye of dish, lower wall separating surface on ore body that undercuts arranges that the 2 deep about 2.2m slotting formulas of row fall ore deposit borehole 3, first section of slotting formula of detonating falls ore deposit borehole 3, not only pulverize ore body, and define the free space of the cliff borehole 1 avalanche country rock waste lifting stope of deep about 2m along ore body incline direction; Second segment detonates to be arranged in armor rock and be about the one of 700��900mm from the marginal distance of dish on ore body and arranges the cliff borehole 1 avalanche country rock of dip-parallel layout again, in order to Width of stope meets and falls the construction equipments such as ore deposit driling explosion and personnel enter the requirement of stope.
Fall ore deposit borehole 3, cliff borehole 1 of wherein slotting formula adopts millisecond detonating mode.
Embodiment 2
As shown in Figure 4, Figure 5 and Figure 6, if orebody thickness is between 300��600mm, after warding off Lou and undercuting, the dip-parallel straight eye of across pitch dish, lower wall separating surface on ore body arranges that the slotting formulas of the 2 deep about 2.2m of row fall ore deposit borehole 3, and arrange the parallel hollow eye 4 of deep about 2.4m in this 2 row slotting formula ore deposit borehole 3 intermediate arrangement one that falls, fill 1 volume explosive not only can to dish out Ore by secondary blasting in hollow eye 4 optical fundus portion, and hollow eye 4 also serves as the fall explosion scope of freedom of ore deposit borehole 3 of slotting formula and uses. First section of slotting formula of detonating detonate 1 volume explosive in hollow eye 4 optical fundus portion of ore deposit borehole 3, second segment that falls is dished out ore body, has not only pulverized ore body, and has defined the free space of the cliff borehole 1 avalanche country rock waste lifting stope of deep about 2m along ore body incline direction; 3rd section detonates to be arranged in armor rock and be about the one of 400��700mm from the marginal distance of dish on ore body and arranges the cliff borehole 1 avalanche country rock of dip-parallel layout again, in order to Width of stope meets and falls the construction equipments such as ore deposit driling explosion and personnel enter the requirement of stope.
Fall ore deposit borehole 3, the 1 volume explosive in hollow eye 4 optical fundus portion, cliff borehole 1 of wherein slotting formula adopts millisecond detonating mode. To sum up, the present invention adopts slotting formula to move towards shallow bore hole along stope to fall breeze broken ore, simultaneously cliff borehole 1 avalanche country rock and guarantee that country rock has certain lumpiness, reject overwhelming majority country rock by screening time selected, thus reducing the selected rate of dilution, improve the extraction value of ore body.
Claims (4)
1. the slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of high-dipping, it is characterized in that, when orebody thickness is not more than 300mm, warding off Lou and the tailing edge stope trend dip-parallel straight eye of dish, lower wall separating surface on ore body that undercuts arranges that two row's slotting formulas fall ore deposit borehole (3), first section of slotting formula of detonating falls ore deposit borehole (3), while pulverizing ore body, form the free space of cliff borehole (1) avalanche country rock waste lifting stope along ore body incline direction; Second segment detonates and is arranged in armor rock and from the marginal distance of dish on ore body is 700��900mm cliff borehole (1) avalanche country rock arranging dip-parallel layout again, in order to Width of stope meets and falls the construction equipments such as ore deposit driling explosion and personnel enter the requirement of stope.
2. the slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of high-dipping, it is characterized in that, orebody thickness is when 300��600mm, warding off Lou and undercuting tailing edge stope trend dish on ore body, the dip-parallel straight eye of lower wall separating surface arranges that two row's slotting formulas fall ore deposit borehole (3), and arrange parallel hollow eye (4) in this two rows slotting formula ore deposit borehole (3) intermediate arrangement one that falls, first section of slotting formula of detonating falls ore deposit borehole (3), detonate 1 volume explosive of hollow eye (4) bottom of second segment is dished out ore body, while pulverizing ore body, the free space of cliff borehole (1) avalanche country rock waste lifting stope is formed along ore body incline direction, 3rd section detonates to be arranged in armor rock and be about the one of 400��700mm from the marginal distance of dish on ore body and arranges cliff borehole (1) the avalanche country rock of dip-parallel layout again, in order to Width of stope meets and falls the construction equipments such as ore deposit driling explosion and personnel enter the requirement of stope.
3. the slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of high-dipping according to claim 1 or claim 2, it is characterised in that the fall degree of depth of ore deposit borehole (3) of described slotting formula is 2.2m, and the degree of depth of described cliff borehole (1) is 2m.
4. the slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of high-dipping according to claim 2, it is characterized in that, the degree of depth of described hollow eye (4) is 2.4m, so that 1 volume explosive of dress at the bottom of its hole slotting formula fall ore deposit borehole (3) detonate after second segment short-delay blasting and assist Ore of dishing out, also serve as slotting formula and fall the explosion free space of ore deposit borehole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051510.0A CN105649626B (en) | 2016-01-26 | 2016-01-26 | The slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of high-dipping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051510.0A CN105649626B (en) | 2016-01-26 | 2016-01-26 | The slotting formula scarps filling mining method of the very thin arteries and veins orebody mining of high-dipping |
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| CN105649626A true CN105649626A (en) | 2016-06-08 |
| CN105649626B CN105649626B (en) | 2017-11-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524444A (en) * | 2017-09-18 | 2017-12-29 | 长春黄金研究院 | A kind of controlled blasting method for improving resuing stoping and falling ore deposit efficiency |
| CN110005412A (en) * | 2019-04-30 | 2019-07-12 | 昆明冶金高等专科学校 | A kind of mining methods of back production Inclined narrow veinwwdmsk |
| CN111828002A (en) * | 2020-08-13 | 2020-10-27 | 西安煤矿机械有限公司 | Lagging automatic coal cutting method based on advanced coal wall identification |
| CN113188390A (en) * | 2021-06-01 | 2021-07-30 | 额济纳旗圆通矿业有限责任公司 | Hydraulic blasting construction method for steeply inclined thin ore body |
Citations (5)
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|---|---|---|---|---|
| CN1112640A (en) * | 1994-05-23 | 1995-11-29 | 撰山子金矿 | Escarpment shrinkage mining method |
| CN1424487A (en) * | 2003-01-08 | 2003-06-18 | 广东高要河台金矿 | Filling shrinkage mining method |
| KR20070029333A (en) * | 2005-09-09 | 2007-03-14 | 주식회사 이디마이트 | Method for crushing structure |
| 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 |
| CN103147759A (en) * | 2013-03-02 | 2013-06-12 | 玉溪大红山矿业有限公司 | Prospecting and short-hole shrinkage mining method of small inclined ore body |
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2016
- 2016-01-26 CN CN201610051510.0A patent/CN105649626B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| CN1112640A (en) * | 1994-05-23 | 1995-11-29 | 撰山子金矿 | Escarpment shrinkage mining method |
| CN1424487A (en) * | 2003-01-08 | 2003-06-18 | 广东高要河台金矿 | Filling shrinkage mining method |
| KR20070029333A (en) * | 2005-09-09 | 2007-03-14 | 주식회사 이디마이트 | Method for crushing structure |
| 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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Non-Patent Citations (1)
| Title |
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| 姚香: "岩金薄与极薄矿脉开采工艺技术综述（一）", 《现代矿业》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524444A (en) * | 2017-09-18 | 2017-12-29 | 长春黄金研究院 | A kind of controlled blasting method for improving resuing stoping and falling ore deposit efficiency |
| CN107524444B (en) * | 2017-09-18 | 2019-03-05 | 长春黄金研究院 | A kind of control blasting method for improving resuing stoping and falling mine efficiency |
| CN110005412A (en) * | 2019-04-30 | 2019-07-12 | 昆明冶金高等专科学校 | A kind of mining methods of back production Inclined narrow veinwwdmsk |
| CN111828002A (en) * | 2020-08-13 | 2020-10-27 | 西安煤矿机械有限公司 | Lagging automatic coal cutting method based on advanced coal wall identification |
| CN113188390A (en) * | 2021-06-01 | 2021-07-30 | 额济纳旗圆通矿业有限责任公司 | Hydraulic blasting construction method for steeply inclined thin ore body |
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| CN105649626B (en) | 2017-11-10 |
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Effective date of registration: 20190521 Address after: 710055 No. 13, Yanta Road, Shaanxi, Xi'an Co-patentee after: CHIFENG JILONG MINING Co.,Ltd. Patentee after: XIAN University OF ARCHITECTURE AND TECHNOLOG Address before: 710055 No. 13, Yanta Road, Shaanxi, Xi'an Patentee before: XIAN University OF ARCHITECTURE AND TECHNOLOG |
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Effective date of registration: 20220711 Address after: 710055 No. 13, Yanta Road, Shaanxi, Xi'an Patentee after: XIAN University OF ARCHITECTURE AND TECHNOLOG Address before: 710055 No. 13, Yanta Road, Shaanxi, Xi'an Patentee before: XIAN University OF ARCHITECTURE AND TECHNOLOG Patentee before: Chifeng Jilong Mining Co., Ltd |
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