CN102926756A - Hard ore rock stripping technology and system of surface mine - Google Patents
Hard ore rock stripping technology and system of surface mine Download PDFInfo
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- CN102926756A CN102926756A CN201210479308XA CN201210479308A CN102926756A CN 102926756 A CN102926756 A CN 102926756A CN 201210479308X A CN201210479308X A CN 201210479308XA CN 201210479308 A CN201210479308 A CN 201210479308A CN 102926756 A CN102926756 A CN 102926756A
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- row
- hole
- pitch
- big gun
- array
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- 239000011435 rock Substances 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title abstract description 5
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 15
- 238000005422 blasting Methods 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005065 mining Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Abstract
A hard ore rock stripping technology of a surface mine includes the step of drilling a blast hole array. The blast hole array includes a plurality rows of blast holes; the blast holes of the adjacent rows in the row directions are mutually staggered; each blast hole corresponds to a position without a blast hole, of the blast hole in the adjacent row; the distance between the adjacent blast holes in each row is hole distance; and the distance between the adjacent blast hole rows is row distance. The technology is characterized in that a small-bore drill bit is used for drilling at a small hole pattern distance, the rock drilling speed is improved by A times compared with that of the prior art, the construction operation is performed at per the small hole pattern distance, the drilling frequency is improved by B times compared with that of the prior art, while the area of each drilling hole is 1/B of the area of the prior art, and A and B are natural numbers larger than 1. The technology greatly lowers the bulk rate and blast root residual rate, the stripping operation can be performed continuously, the operation is convenient, other investments are not needed, the loading is unchanged, the punching time is shortened, and the secondary blasting load is greatly reduced.
Description
Technical field
What the present invention relates to the hard ore deposit of surface mine rock mass adopts stripping technique and system, its in the open stope adopt in the stripping operation process, the parameters such as size, pitch-row and array pitch in aperture have been carried out selection invention, obtained unforeseeable technique effect.Not only reduce the problem of long-standing boulder yield, and improved the bore process of mining.
Background technology
According to prior art, in the mining of bargh, need to get out big gun hole array, wherein, the parameter that in the past adopted is: blasthole diameter is 150mm; Pitch-row is 7.0m; Array pitch is 4.0m.Yet for a long time, the people did not suspect reasonability and the economy of these parameters.
The problem that can always exist is: mining all the situation that secondary changes big gun can occur.
The consequence that causes is: the activity duration is long, blasted material is wasted and the perforation workload increases.
Yet prior art did not also consider to change these technical datas, to improve the benefit of actual production.
Summary of the invention
The purpose of this invention is to provide adopting of the hard ore deposit of a kind of surface mine rock mass and shell technique and system, it is by the selection invention to aperture, borehole spacing, big gun hole array pitch, so that demolition effect improves, market efficiency is improved, cost of production is reduced, production safety is strengthened.
For this reason, according to an aspect of the present invention, what the hard ore deposit of a kind of surface mine rock mass was provided adopts stripping technique, comprise and get out big gun hole array, this big gun hole array comprises some artillery salvos hole, adjacent row's big gun hole moves towards interlaced along row's, and each big gun hole is corresponding to the place, non-big gun hole in its adjacent artillery salvo hole; Distance among each row between the adjacent shot hole is pitch-row; Distance between the adjacent shot hole row is array pitch, it is characterized in that, select small-bore drill bit and fine-structure mesh spacing to hole, the rock drill speed ratio originally improved A doubly, carry out construction operation by the fine-structure mesh spacing, the boring number increases to original B doubly, and the area of each boring is equivalent to original B/one, and A and B are the natural number greater than 1.
Preferably, A is 4-6, and B is 2-4.
Preferably, A is 5, and B is 3.
Preferably, blasthole diameter is reduced into 82-98mm; Pitch-row is reduced into 2.8-3.2m; And array pitch is reduced into 2.4-2.8m.
Preferably, blasthole diameter is reduced into 90mm; Pitch-row is reduced into 3.0m; And array pitch is reduced into 2.6m.
According to another aspect of the present invention, the stripping system of adopting of the hard ore deposit of a kind of surface mine rock mass is provided, it comprises the big gun hole array that gets out, this big gun hole array comprises some artillery salvos hole, adjacent row's big gun hole moves towards interlaced along row's, and each big gun hole is corresponding to the place, non-big gun hole in its adjacent artillery salvo hole; Distance among each row between the adjacent shot hole is pitch-row; Distance between the adjacent shot hole row is array pitch, it is characterized in that, the bit diameter that adopts is less than prior art, the hole pattern gap ratio prior art that adopts is little, the rock drilling drilling speed be original A doubly, the boring number be original B doubly, and the area of each boring is original B/one, the drill bit aperture is radical sign B/one, and A and B are the natural number greater than 1.
Preferably, A is 4-6, and B is 2-4.
Preferably, A is 5, and B is 3.
Preferably, blasthole diameter is reduced into 82-98mm; Pitch-row is reduced into 2.8-3.2m; And array pitch is reduced into 2.4-2.8m.
Preferably, blasthole diameter is reduced into 90mm; Pitch-row is reduced into 3.0m; And array pitch is reduced into 2.6m.
According to the present invention, blasthole diameter changes 90mm into by the 150mm of the prior art of design; Pitch-row changes 3.0m into by the 7.0m of prior art; Array pitch changes 2.6m into by the 4.0m of prior art.The invention belongs to selection invention, it has selected the parameters such as more excellent aperture and hole pattern fully in conjunction with the reality in mine.
According to the present invention, the aperture in rock drilling big gun hole diminishes, the spacing of wells diminishes, the array pitch of holing diminishes, pattern is constant, has adapted to the requirement of explosion, so that the remaining rate of boulder yield and big gun root reduces greatly, adopts the stripping operation and carries out continuously.The investment that the present invention is easy to operate, do not need other, the just corresponding increase of big gun hole count, explosive payload is constant, the time shorten of punchinging, the secondary blasting amount greatly reduces.
According to the present invention, pore size is optimised, and borehole spacing is arranged and to be improved, and has adapted to actual production, reduces widely the secondary blasting amount, smooth and easy adopts the stripping operation, has effectively reduced boulder yield and big gun root remaining, has improved the degree of safety in the operation process.
The present invention has produced unforeseeable technique effect, for example: reduced boulder yield and big gun root remaining, shortened duty cycle, improved efficient, reduced cost.The job safety degree improves, and has reduced secondary and has changed big gun boring and burst size, and production operation is more smooth and easy.Explosion rear lower platform is more smooth, seldom leaves the big gun root, greatly reduces material and the work time cost of cleaning big gun root.Destruction to side slope reduces, and stablely plays good effect to what safeguard the excavating plant side slope.
Description of drawings
Fig. 1 is boring schematic layout pattern of the present invention.
Fig. 2 is the structural representation of big gun hole array rig navigation system of the stripping system of adopting of the hard ore deposit of surface mine according to the present invention rock mass.
Fig. 3 is the structural representation of the rig of adopting the stripping system of the hard ore deposit of surface mine according to the present invention rock mass.
The specific embodiment
According to one embodiment of present invention, as shown in Figure 1 the stripping technique of adopting of the hard ore deposit of a kind of surface mine rock mass comprises and gets out big gun hole array:
Big gun hole 11, big gun hole 12, big gun hole 13, big gun hole 14,
Big gun hole 21, big gun hole 22, big gun hole 23, big gun hole 24,
Big gun hole 31, big gun hole 32, big gun hole 33, big gun hole 34,
..........、.........、.........、.........、...。
This big gun hole array comprises some artillery salvos hole, for example:
The big gun hole of first row: big gun hole 11, big gun hole 12, big gun hole 13, big gun hole 14,
The big gun hole of second row: big gun hole 21, big gun hole 22, big gun hole 23, big gun hole 24,
The 3rd row's big gun hole: big gun hole 31, big gun hole 32, big gun hole 33, big gun hole 34, Etc..
Adjacent row's (for example between first row and the second row, second row and the 3rd row between) big gun hole is interlaced along row's the trend direction of 13 → big gun hole, 12 → big gun hole, 11 → big gun hole, big gun hole 14 (for example along), and each big gun hole (for example the big gun hole 21) are corresponding to the place, non-big gun hole in its adjacent artillery salvo hole (for example between the big gun hole 11 and 12 of first row, between the 3rd row's the big gun hole 31 and 32;
Distance D between each big gun hole row is pitch-row; Distance H between the adjacent shot hole row is array pitch.
According to the present invention, select small-bore drill bit and fine-structure mesh spacing to hole, the rock drill speed ratio originally improved A doubly, carry out construction operation by the fine-structure mesh spacing, the boring number increases to original B doubly, and the area of each boring is equivalent to original B/one, and the drill bit aperture is radical sign B/one, and A and B are the natural number greater than 1.
Preferably, A is 4-6, and B is 2-4.Preferably, A is 5, and B is 3.
Preferably, blasthole diameter R is reduced into 82-98mm; Pitch-row D is reduced into 2.8-3.2m; And array pitch H is reduced into 2.4-2.8m.
Preferably, blasthole diameter R is reduced into 90mm; Pitch-row D is reduced into 3.0m; And array pitch H is reduced into 2.6m.
If the bore diameter of prior art is
The drilling hole amount of unit area is N, and bore diameter of the present invention changes Φ into, so,
In a word, rock drilling big gun hole technical scheme is, select small-bore drill bit and fine-structure mesh spacing to hole, drilling speed improves about 5 times than original, carry out construction operation by the hole pattern spacing after changing, the area of the drilling hole amount of increase and front and back boring is just in time all near three times, and the number of namely holing is that original three times and the area of boring are equivalent to original 1/3rd, explosive charge increases lessly during onepull, and secondary changes the big gun amount and greatly reduces.
Embodiment as shown in Figure 2, the positioner 100 of big gun hole array; The control device 150 of borer system is communicated with described borer system 120, the transverse shifting device of at least one bench drill machine 121 130 and vertically move device 131 and can be respectively arrive the coordinate position in target big gun hole 101,102,103 etc. along cross slide way 110 and longitudinal rail 111 under the driving of laterally driver 140 and longitudinal drive 141.
Embodiment as shown in Figure 3, the electric device 205 of rig make drill bit 206 along the direction rotation shown in the arrow 207; The driving cylinder 200 of drill bit 206 has Hydrauservo System 204, and drill bit 206 has the tilt gauge of comprising 201 and tiltedly bores rotating shaft 202.
In another embodiment, drill bit 206 can not established driving cylinder 200 and Hydrauservo System 204 thereof, and the force application apparatus of feeding drill bit 206 only is set.
The stripping system of adopting according to the hard ore deposit of a kind of surface mine of the present invention rock mass is characterized in that, described system comprises: big gun hole array positioner, this big gun hole array comprises some artillery salvos hole, each distance of arranging between the adjacent shot hole is pitch-row, and the distance between the adjacent shot hole row is array pitch, every 100m
2Drilling hole amount be 3.5-3.6B, the area of each boring is 17660-17665mm
2/ B; The control device of borer system, described borer system comprise at least one bench drill machine, and the control device of described borer system is for sending movement and halt instruction and making each rig arrive the device of target big gun hole coordinate position at least one bench drill machine; The drive unit of each rig, its device for driving each drilling-machine shifter and stopping; The track-type facilities of each rig, it comprises cross slide way and the longitudinal rail that makes each rig arrive target big gun hole coordinate position; The electric device of each rig, it is the device that makes the bit of each rig; And the drill bit of each rig, the drill bit aperture is radical sign B/one, B is greater than 1.
Preferably, B is 2 to 4 natural number, and more preferably, B is 3.
Preferably, described rig comprises tilt gauge and tiltedly bores rotating shaft.
Preferably, described big gun hole array positioner is the model of total powerstation or big gun hole array.
The stripping system of adopting according to the hard ore deposit of a kind of surface mine of the present invention rock mass, it is characterized in that, described system comprises: big gun hole array positioner, this big gun hole array comprises some artillery salvos hole, each distance of arranging between the adjacent shot hole is pitch-row, and the distance between the adjacent shot hole row is array pitch, and each blasthole diameter is 82-98mm, pitch-row is 2.8-3.2m, and array pitch is 2.4-2.8m; The control device of borer system, described borer system comprise at least one bench drill machine, and the control device of described borer system is for sending movement and halt instruction and making each rig arrive the device of target big gun hole coordinate position at least one bench drill machine; The drive unit of each rig, its device for driving each drilling-machine shifter and stopping; The track-type facilities of each rig, it comprises cross slide way and the longitudinal rail that makes each rig arrive target big gun hole coordinate position; The electric device of each rig, it is the device that makes the bit of each rig; And the drill bit of each rig, the nominal size in drill bit aperture is identical with the nominal size of blasthole diameter.
Preferably, blasthole diameter is 90mm; Pitch-row is 3.0m; And array pitch is 2.6m.
Preferably, described rig comprises tilt gauge and tiltedly bores rotating shaft.
Preferably, described big gun hole array positioner is the model of total powerstation or big gun hole array.
Claims (10)
- One kind be particularly useful for the hard ore deposit of surface mine rock mass adopt stripping technique, mainly comprise getting out big gun hole array, this big gun hole array can comprise some artillery salvos hole, the distance among each row between the adjacent shot hole is pitch-row; Distance between the adjacent shot hole row is array pitch, it is characterized in that, can select small-bore drill bit and fine-structure mesh spacing to hole, the rock drill speed ratio originally improved A doubly, carry out construction operation by the fine-structure mesh spacing, the boring number increases to original B doubly, and the area of each boring is equivalent to original B/one, and A and B are all greater than 1.
- 2. the stripping technique of adopting as claimed in claim 1 is characterized in that, A and B are natural number, and A is preferably 4 to 6, and B is preferably 2 to 4.
- 3. the stripping technique of adopting as claimed in claim 2 is characterized in that, A is preferably 5, and B is preferably 3.
- One kind be particularly useful for the hard ore deposit of surface mine rock mass adopt stripping technique, mainly comprise getting out big gun hole array, this big gun hole array can comprise some artillery salvos hole, the distance among each row between the adjacent shot hole is pitch-row; Distance between the adjacent shot hole row is array pitch, it is characterized in that, blasthole diameter is reduced into 82 to 98mm; Pitch-row is reduced into 2.8 to 3.2m; And array pitch is reduced into 2.4 to 2.8m.
- 5. the stripping technique of adopting as claimed in claim 4 is characterized in that, blasthole diameter dwindles and is preferably 90mm; Pitch-row is dwindled and is preferably 3.0m; And array pitch is dwindled and is preferably 2.6m.
- 6. the stripping system of adopting of the hard ore deposit of a surface mine rock mass, it comprises the big gun hole array that gets out, and this big gun hole array comprises some artillery salvos hole, and the distance among each row between the adjacent shot hole is pitch-row; Distance between the adjacent shot hole row is array pitch, it is characterized in that, the rock drilling drilling speed be original A doubly, the boring number be original B doubly, and the area of each boring is original B/one, the drill bit aperture is radical sign B/one, A and B are all greater than 1.
- 7. the stripping system of adopting as claimed in claim 6 is characterized in that, it is 4 to 6 that A and B are natural number A, and B is 2 to 4.
- 8. the stripping system of adopting as claimed in claim 7 is characterized in that, A is 5, and B is 3.
- 9. the stripping system of adopting of the hard ore deposit of a surface mine rock mass, it comprises the big gun hole array that gets out, and this big gun hole array comprises some artillery salvos hole, and the distance among each row between the adjacent shot hole is pitch-row; Distance between the adjacent shot hole row is array pitch, it is characterized in that, blasthole diameter is reduced into 82 to 98mm; Pitch-row is reduced into 2.8 to 3.2m; And array pitch is reduced into 2.4 to 2.8m.
- 10. the stripping system of adopting as claimed in claim 9 is characterized in that, blasthole diameter is reduced into 90mm; Pitch-row is reduced into 3.0m; And array pitch is reduced into 2.6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479308.XA CN102926756B (en) | 2012-03-02 | 2012-11-22 | Hard ore rock stripping technology and system of open-pit mine |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220076446.9 | 2012-03-02 | ||
| CN2012200764469 | 2012-03-02 | ||
| CN201220076446 | 2012-03-02 | ||
| CN201210479308.XA CN102926756B (en) | 2012-03-02 | 2012-11-22 | Hard ore rock stripping technology and system of open-pit mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926756A true CN102926756A (en) | 2013-02-13 |
| CN102926756B CN102926756B (en) | 2015-03-18 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210479308.XA Expired - Fee Related CN102926756B (en) | 2012-03-02 | 2012-11-22 | Hard ore rock stripping technology and system of open-pit mine |
| CN 201220624137 Withdrawn - After Issue CN203066980U (en) | 2012-03-02 | 2012-11-22 | Mining and stripping system for hard rock mass of surface mine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220624137 Withdrawn - After Issue CN203066980U (en) | 2012-03-02 | 2012-11-22 | Mining and stripping system for hard rock mass of surface mine |
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| CN (2) | CN102926756B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2103644C1 (en) * | 1994-01-10 | 1998-01-27 | Якутский Научно-Исследовательский И Проектный Институт Алмазодобывающей Промышленности | Discontinuous explosive charge |
| RU2200298C2 (en) * | 2001-01-12 | 2003-03-10 | ОАО "Восточный научно-исследовательский горнорудный институт" | Procedure of blast breaking of ore blocks cleaved by dike |
| KR100416567B1 (en) * | 2002-12-03 | 2004-01-31 | 범진삼 | Special blasting method using artificial free face |
| CN101266123A (en) * | 2007-03-15 | 2008-09-17 | 鞍钢集团矿业公司 | Crushing station pit digging method |
| CN102147218A (en) * | 2011-01-13 | 2011-08-10 | 广东宏大爆破股份有限公司 | Reverse hole distributing method used in longhole bench blasting |
| CN102331212A (en) * | 2011-09-07 | 2012-01-25 | 薛世忠 | Loss and dilution controlled blasting method for open metal mine |
-
2012
- 2012-11-22 CN CN201210479308.XA patent/CN102926756B/en not_active Expired - Fee Related
- 2012-11-22 CN CN 201220624137 patent/CN203066980U/en not_active Withdrawn - After Issue
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2103644C1 (en) * | 1994-01-10 | 1998-01-27 | Якутский Научно-Исследовательский И Проектный Институт Алмазодобывающей Промышленности | Discontinuous explosive charge |
| RU2200298C2 (en) * | 2001-01-12 | 2003-03-10 | ОАО "Восточный научно-исследовательский горнорудный институт" | Procedure of blast breaking of ore blocks cleaved by dike |
| KR100416567B1 (en) * | 2002-12-03 | 2004-01-31 | 범진삼 | Special blasting method using artificial free face |
| CN101266123A (en) * | 2007-03-15 | 2008-09-17 | 鞍钢集团矿业公司 | Crushing station pit digging method |
| CN102147218A (en) * | 2011-01-13 | 2011-08-10 | 广东宏大爆破股份有限公司 | Reverse hole distributing method used in longhole bench blasting |
| CN102331212A (en) * | 2011-09-07 | 2012-01-25 | 薛世忠 | Loss and dilution controlled blasting method for open metal mine |
Non-Patent Citations (1)
| Title |
|---|
| 王淑亮等: "小孔径中深孔爆破在蟒山灰岩矿中的应用", 《水泥》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203066980U (en) | 2013-07-17 |
| CN102926756B (en) | 2015-03-18 |
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Effective date of registration: 20220209 Address after: 336600 Qianshan Town Dagang mountain, Fenyi County, Xinyu City, Jiangxi Province Patentee after: JIANGXI FENYI ZHUJIANG MINING Co.,Ltd. Address before: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee before: JIANGXI RARE EARTH AND RARE METALS TUNGSTEN Group Corp. |
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Granted publication date: 20150318 |