CN108709467A - It is lower that the method that vertical long hole refines explosion is replaced to fan-shaped deep hole - Google Patents
It is lower that the method that vertical long hole refines explosion is replaced to fan-shaped deep hole Download PDFInfo
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- CN108709467A CN108709467A CN201810270943.4A CN201810270943A CN108709467A CN 108709467 A CN108709467 A CN 108709467A CN 201810270943 A CN201810270943 A CN 201810270943A CN 108709467 A CN108709467 A CN 108709467A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- 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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- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
It is lower that the method that vertical long hole refines explosion is replaced to fan-shaped deep hole, it is related to technical field of prospecting, it is characterised in that：Including following operating procedure, back production rock drilling, back production design optimization, it is lower to the designing of fan-shaped deep hole process for stoping, establish blasting parameter, blasting circuit connection, perforation correction, determine dynamite charge requirement, charge explosion.The method of the present invention is reasonable, can reduce workload, improve capacity utilization, increases job schedule.
Description
Technical field
The present invention relates to mine locating technical fields, and in particular under replace vertical long hole to refine explosion to fan-shaped deep hole
Method.
Background technology
Currently persistently plummeting due to iron ore price, domestic iron ore enterprise development face a severe challenge, resource item
The change official post exploitation difficulty of part increases, and socio-economic development also proposes mine development new requirement.Therefore, row is coped with
It the variation of industry situation and keeps abreast of the times, it is necessary to constantly research and develop mining technique, pass through the application and technological transformation of new technology
Equal measures carry out cost efficiency, improve enterprise competitiveness.
Zhang village mine now uses vertical long hole block chambering method to carry out back production, and a step is dug up mine, and room is 15 meters wide, and two steps mining room is wide
18 meters.Each mineral building must tunnel 2~3 drilling chambers, and drilling chamber driving amount plane projection area accounts for rooming area
85%, chamber driving amount is big, long construction period, and production cost is high.
And Zhang village mine now uses vertical long hole block chambering method to carry out explosion back production, and YGZ90 drilling machines are used in by mine lane
On to chisel diameter 65mm medium-length holes, dig moat ditch, undercut 15 meters high, drilling chamber uses T150 down-the-hole drills chisel diameter 165mm
It is lower to parallel deep hole, 45 meters of hole depth.Drilling chamber driving amount plane projection area accounts for the 85% of rooming area, under vertical
It is 40 meters to the practical machine-team drilling amount of the used down-the-hole drill of parallel deep hole, is pushed up in hammer drill relative to SimbaH1254
140 meters of speed of deep hole machine-team are slow, and rock penetration performance is low.
Invention content
Technical problem to be solved by the present invention lies in overcome existing technological deficiency provide a kind of method rationally, can
Reduce workload, raising capacity utilization, the lower of increase job schedule replaces vertical long hole to refine explosion to fan-shaped deep hole
Method.
The technical problems to be solved by the invention are realized using technical solution below：
It is lower that the method that vertical long hole refines explosion is replaced to fan-shaped deep hole, it is characterised in that：It is walked including following operation
Suddenly,
Step 1: back production rock drilling：
It is 60m, width that mining methods, which mainly use large diameter, deep borehole stage open stope afterwards filling mining method, mineral building height,
Between 15-20m, length is orebody thickness；Deep hole back production rock drilling uses T-150 down-the-hole drilling trolleys, in stope drilling chamber
Interior downward Drilling vertical long hole, blasthole diameter Φ 165mm, blasthole depth 41m or so, Hole pattern parameters 3m*3m；The height that undercuts 15m,
Using Simba1254 drill jumboes, aperture 76mm, array pitch 1.8-2m, bottom hole pitch 2-2.5m；
Step 2: back production design optimization：
The drilling drift designed in a height of 5m*4m of two steps mining -390 horizontal boundary of room design * one wide is adopted as a step
And two shared drilling chamber in step mining room；
According to rock drilling equipment performance, mineral building divides top 30m using lower same to scallop hole on to scallop hole, lower part 30m
When back production mode；
Using grind Tongling copper be preced with KQG100 type drilling machines, construction on to scallop hole, in boring capacity 45000m/ platform years, have
Operation hole depth 0-30m is imitated, aperture is Φ 76mm；Upper subordinate uses CS150D type drilling machines, effective operation hole depth 0- to scallop hole
60m, boring capacity 45000m/ platform years, aperture are Φ 89mm；
Step 3: the lower design to fan-shaped deep hole process for stoping：
It is lower to fan-shaped deep hole back production be the full side blasting of fan-shaped deep hole, including Large diameter deep-hole blasting formed cutting groove, under
Undercut to fan shaped medium length hole to be formed and on undercut three parts composition to fan shaped medium length hole, wherein on to fan-shaped deep hole and lower to fan
The vertical ore caving height of shape deep hole is equal；
Positive artillery salvo hole is continuously filled using the JWL-DXRH-2 type field mixed loading truck machineries filling of Jiangnan chemical industry R & D Cooperation
Medicine；
Using high precision fuse blasting cap ignition charge, along stope direction since cutting groove, it is quick-fried to carry out full lateral caving
It is broken, complete the entire mineral building of explosion；
Step 4: establishing blasting parameter：
Theoretical, the minimum burden formula according to livingston explosive funnelAnd empirical equation W=25-
30d calculates；
Step 5: blasting circuit connects：
Using high-precision high strength detonating tube detonator " hole-specifically " initiation net, with arranging adjacent shot hole interval 25ms, between row between
Every 41ms, oblique interval 17ms, time isopleth tends towards stability；
Step 6: perforation correction：
To solve the problems, such as hole deviation：
1. using the large apertures Φ 89mm, increase dress virtual calibrator for instrument transformer carries out lower to fan-shaped hole drilling when necessary, improves drilling essence
Degree.
2. blasthole derivometer (model MDL Cabled Boretrak) and laser range finder (model Nikon -3) are used,
Ensure the accurate of blasthole angle and depth, it is ensured that bottom hole deflection is within 20cm
Step 7: determining dynamite charge requirement：
1. detonation tool controls detonation wave by adding minor diameter emulsifying medicine to roll into detonation shell case, by detonation tool placement location
The direction of propagation.Upward hole detonation tool putting hole bottom, ensures that detonation gas is trapped in hole and more preferably does work, and protect highwall；It is lower to
The hole holes 1-6 putting hole bottom is reduced panel barrier and is overbreak, and powder charge aperture is placed in the holes 7-11；Ensure quick-fried rear 1304 ore pillar highwalls
Smoothly；
To the stringent controlled loading of explosive height in hole under 2..Using the undergrounds JWL-DXRH-2 explosives mix-load truck, pass through remote control control
Pipe conveyor and charge system preset the explosive payload in each hole according to data of explosive filled on the control panel, select corresponding blasthole number,
Start automatic powder charge, when explosive payload reaches setting value, system autostop, explosive payload is accurate；
Step 8: charge explosion：Using common emulsion or ammonium nitrate-fuel oil mixture, non-electric initiation system, cutting groove+fall ladder
Section lateral caving mode；The lateral caving of falling bench ore caving interval 12-18m, using detonator, primacord and non-electric ms detonator,
It is segmented short-delay blasting, V-type firing order；
The aperture be Φ 89mm be in order to ensure lower to hole degree of skewness within controlled range.
Beneficial effects of the present invention are：
1, drilling chamber excavation work amount 80% is reduced；
2, capacity utilization rationally is improved using existing rock drilling equipment, improves overall rock penetration performance；
3, Blasting Parameters Optimization rationally adjusts explosive distribution density, reduces explosive specific charge；
4, driling explosion data are collected, driling explosion back production experience is accumulated；
5,100 meters of calculating are grown with mineral building, a panel development heading designed more originally saves 19200m3, average each
Stope saves 3840m3, saves chamber excavation work amount 80% compared to vertical parallel hole rock drilling of constructing, new mining technology is opposite to be subtracted
680,000 yuan few/single stope, a panel saves 3,400,000 yuan；
6, only it is explosive raw material or semi-finished product before emulsified bases is packed into blasthole, no cap-sensitivity belongs to 5.1 grades of oxygen
Agent reduces the security risk during transport, storage, use；
7, the explosive character of on-site mixed preparation is stable, it can be achieved that mechanization continuous charging operation, with existing operating type
It compares, site operation personnel and activity duration can be reduced, send automatically and move back pipe and can reduce labor intensity, more stopes cycles can be completed
Operation meets efficient construction requirement.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, below
The present invention is further explained.
Embodiment：
It is lower that the method that vertical long hole refines explosion is replaced to fan-shaped deep hole, it is characterised in that：It is walked including following operation
Suddenly,
Step 1: back production rock drilling：
It is 60m, width that mining methods, which mainly use large diameter, deep borehole stage open stope afterwards filling mining method, mineral building height,
Between 15-20m, length is orebody thickness；Deep hole back production rock drilling uses T-150 down-the-hole drilling trolleys, in stope drilling chamber
Interior downward Drilling vertical long hole, blasthole diameter Φ 165mm, blasthole depth 41m or so, Hole pattern parameters 3m*3m；The height that undercuts 15m,
Using S imba1254 drill jumboes, aperture 76mm, array pitch 1.8-2m, bottom hole pitch 2-2.5m；
Step 2: back production design optimization：
The drilling drift designed in a height of 5m*4m of two steps mining -390 horizontal boundary of room design * one wide is adopted as a step
And two shared drilling chamber in step mining room；
According to rock drilling equipment performance, mineral building divides top 30m using lower same to scallop hole on to scallop hole, lower part 30m
When back production mode；
Using grind Tongling copper be preced with KQG100 type drilling machines, construction on to scallop hole, in boring capacity 45000m/ platform years, have
Operation hole depth 0-30m is imitated, aperture is Φ 76mm；Upper subordinate uses CS150D type drilling machines, effective operation hole depth 0- to scallop hole
60m, boring capacity 45000m/ platform years, aperture are Φ 89mm；
Step 3: the lower design to fan-shaped deep hole process for stoping：
It is lower to fan-shaped deep hole back production be the full side blasting of fan-shaped deep hole, including Large diameter deep-hole blasting formed cutting groove, under
Undercut to fan shaped medium length hole to be formed and on undercut three parts composition to fan shaped medium length hole, wherein on to fan-shaped deep hole and lower to fan
The vertical ore caving height of shape deep hole is equal；
Positive artillery salvo hole is continuously filled using the JWL-DXRH-2 type field mixed loading truck machineries filling of Jiangnan chemical industry R & D Cooperation
Medicine；
Using high precision fuse blasting cap ignition charge, along stope direction since cutting groove, it is quick-fried to carry out full lateral caving
It is broken, complete the entire mineral building of explosion；
Step 4: establishing blasting parameter：
Theoretical, the minimum burden formula according to livingston explosive funnelAnd empirical equation W=25-
30d calculates；
Step 5: blasting circuit connects：
Using high-precision high strength detonating tube detonator " hole-specifically " initiation net, with arranging adjacent shot hole interval 25ms, between row between
Every 41ms, oblique interval 17ms, time isopleth tends towards stability；
Step 6: perforation correction：
To solve the problems, such as hole deviation：
1. using the large apertures Φ 89mm, increase dress virtual calibrator for instrument transformer carries out lower to fan-shaped hole drilling when necessary, improves drilling essence
Degree.
2. blasthole derivometer (model MDL Cabled Boretrak) and laser range finder (model Nikon -3) are used,
Ensure the accurate of blasthole angle and depth, it is ensured that bottom hole deflection is within 20cm
Step 7: determining dynamite charge requirement：
1. detonation tool controls detonation wave by adding minor diameter emulsifying medicine to roll into detonation shell case, by detonation tool placement location
The direction of propagation.Upward hole detonation tool putting hole bottom, ensures that detonation gas is trapped in hole and more preferably does work, and protect highwall；It is lower to
The hole holes 1-6 putting hole bottom is reduced panel barrier and is overbreak, and powder charge aperture is placed in the holes 7-11；Ensure quick-fried rear 1304 ore pillar highwalls
Smoothly；
To the stringent controlled loading of explosive height in hole under 2..Using the undergrounds JWL-DXRH-2 explosives mix-load truck, pass through remote control control
Pipe conveyor and charge system preset the explosive payload in each hole according to data of explosive filled on the control panel, select corresponding blasthole number,
Start automatic powder charge, when explosive payload reaches setting value, system autostop, explosive payload is accurate；
Step 8: charge explosion：Using common emulsion or ammonium nitrate-fuel oil mixture, non-electric initiation system, cutting groove+fall ladder
Section lateral caving mode；The lateral caving of falling bench ore caving interval 12-18m, using detonator, primacord and non-electric ms detonator,
It is segmented short-delay blasting, V-type firing order；
The aperture be Φ 89mm be in order to ensure lower to hole degree of skewness within controlled range.
Attribute and content such as the following table 1 of explosive used by charge explosion：
Table 1
Explosion is 5300 and 5700m/s；
Iron ore hardness is high, and wave impedance is big, preferentially selects three high explosives in principle；It is in bulk in common explosive type above
Emulsifiability, it is economical preferably；
The combination rock property that blasting parameter is calculated determines each blasting parameter such as the following table 2：
Table 2
The optimal round data of explosive filled determined after optimization compares：
On to each hole explosive payload of scallop hole and relevant parameter see the table below 3：
Table 3
It is lower to see the table below 4 to each hole explosive payload of scallop hole and relevant parameter
Table 4
High-precision high intensity detonator delay selection of time such as the following table 5：
Table 5
Determine equipment such as the following table 6 of the selection of explosion：
Table 6
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, this
A little changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by the attached claims
Book and its equivalent thereof.
Claims (1)
1. under the method that vertical long hole refines explosion is replaced to fan-shaped deep hole, it is characterised in that：Including following operating procedure,
Step 1: back production rock drilling：
It is 60m, width 15- that mining methods, which mainly use large diameter, deep borehole stage open stope afterwards filling mining method, mineral building height,
Between 20m, length is orebody thickness；Deep hole back production rock drilling uses T-150 down-the-hole drilling trolleys, in stope drilling chamber downwards
Drilling vertical long hole, blasthole diameter Φ 165mm, blasthole depth 41m or so, Hole pattern parameters 3m*3m；The height that undercuts 15m, using S
Imba1254 drill jumboes, aperture 76mm, array pitch 1.8-2m, bottom hole pitch 2-2.5m；
Step 2: back production design optimization：
It designs and designs the drilling drift of * one wide a height of 5m*4m in two steps mining -390 horizontal boundary of room and adopted as a step and two
The shared drilling chamber in step mining room；
According to rock drilling equipment performance, mineral building divides top 30m to be used to scallop hole while being returned to scallop hole, lower part 30m using lower
Adopt mode；
KQG100 type drilling machines are preced with using the copper for grinding Tongling, are effectively made to scallop hole, boring capacity 45000m/ platform years in construction
Industry hole depth 0-30m, aperture are Φ 76mm；Upper subordinate uses CS150D type drilling machines, effective operation hole depth 0-60m to bore to scallop hole
Hole ability 45000m/ platform years, aperture are Φ 89mm；
Step 3: the lower design to fan-shaped deep hole process for stoping：
It is lower to fan-shaped deep hole back production be the full side blasting of fan-shaped deep hole, including Large diameter deep-hole blasting forms cutting groove, lower to fan
Shape medium-length hole undercut to be formed and on undercut three parts composition to fan shaped medium length hole, wherein on to fan-shaped deep hole and lower to fan-shaped deep hole
Vertical ore caving height is equal；
The positive artillery salvo hole continuous charging is loaded using the JWL-DXRH-2 type field mixed loading truck machineries of Jiangnan chemical industry R & D Cooperation；
Using high precision fuse blasting cap ignition charge, along stope direction since cutting groove, full lateral caving explosion is carried out, it is complete
At the entire mineral building of explosion；
Step 4: establishing blasting parameter：
Theoretical, the minimum burden formula according to livingston explosive funnelAnd empirical equation W=25-30d is surveyed
It calculates；
Step 5: blasting circuit connects：
Using high-precision high strength detonating tube detonator " hole-specifically " initiation net, with row adjacent shot hole interval 25ms, spacing between rows
41ms, oblique interval 17ms, time isopleth tend towards stability；
Step 6: perforation correction：
To solve the problems, such as hole deviation：
1. using the large apertures Φ 89mm, increase dress virtual calibrator for instrument transformer carries out lower to fan-shaped hole drilling when necessary, improves borehole accuracy.
2. using blasthole derivometer (model MDL Cab l ed Boretrak) and laser range finder (model N i kon-3), really
Protect the accurate of blasthole angle and depth, it is ensured that bottom hole deflection is within 20cm
Step 7: determining dynamite charge requirement：
1. detonation tool in detonation shell case by adding minor diameter emulsifying medicine to roll into, by detonation tool placement location control detonation wave propagation side
To.Upward hole detonation tool putting hole bottom, ensures that detonation gas is trapped in hole and more preferably does work, and protect highwall；It is lower to hole 1-6
Hole putting hole bottom is reduced panel barrier and is overbreak, and powder charge aperture is placed in the holes 7-11；Ensure that quick-fried rear 1304 ore pillar highwalls are smooth；
To the stringent controlled loading of explosive height in hole under 2..Using the undergrounds JWL-DXRH-2 explosives mix-load truck, pipe is sent by remote control control
Device and charge system preset the explosive payload in each hole according to data of explosive filled on the control panel, select corresponding blasthole number, start certainly
Dynamic powder charge, when explosive payload reaches setting value, system autostop, explosive payload is accurate；
Step 8: charge explosion：It is lateral using common emulsion or ammonium nitrate-fuel oil mixture, non-electric initiation system, cutting groove+bench of falling
Ore caving mode；The lateral caving of falling bench ore caving interval 12-18m, using detonator, primacord and non-electric ms detonator, segmentation is micro-
Poor explosion, V-type firing order.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270943.4A CN108709467B (en) | 2018-03-29 | 2018-03-29 | Method for fine blasting by replacing vertical deep hole with downward fan-shaped deep hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270943.4A CN108709467B (en) | 2018-03-29 | 2018-03-29 | Method for fine blasting by replacing vertical deep hole with downward fan-shaped deep hole |
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| CN108709467A true CN108709467A (en) | 2018-10-26 |
| CN108709467B CN108709467B (en) | 2020-07-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110378032A (en) * | 2019-07-22 | 2019-10-25 | 安徽马钢张庄矿业有限责任公司 | A kind of mining explosion presplit blasting determination method for parameter |
| CN113090265A (en) * | 2021-05-19 | 2021-07-09 | 安徽马钢张庄矿业有限责任公司 | Novel 90m high and middle section fan-shaped deep hole stoping method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603910A (en) * | 1983-03-23 | 1986-08-05 | Jcc Construction Company Ab | Method of blasting rock caverns with large cross-sectional area |
| CN101737050A (en) * | 2008-11-25 | 2010-06-16 | 宝钢集团上海梅山有限公司 | Deep hole arranging method in mining |
| CN102128033A (en) * | 2011-04-29 | 2011-07-20 | 北京矿冶研究总院 | Continuous caving mining method |
| CN102953732A (en) * | 2011-08-17 | 2013-03-06 | 彭康 | Room-and-pillar major-diameter longhole inverted-step-like segmented lateral caving subsequent filling mining method |
-
2018
- 2018-03-29 CN CN201810270943.4A patent/CN108709467B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603910A (en) * | 1983-03-23 | 1986-08-05 | Jcc Construction Company Ab | Method of blasting rock caverns with large cross-sectional area |
| CN101737050A (en) * | 2008-11-25 | 2010-06-16 | 宝钢集团上海梅山有限公司 | Deep hole arranging method in mining |
| CN102128033A (en) * | 2011-04-29 | 2011-07-20 | 北京矿冶研究总院 | Continuous caving mining method |
| CN102953732A (en) * | 2011-08-17 | 2013-03-06 | 彭康 | Room-and-pillar major-diameter longhole inverted-step-like segmented lateral caving subsequent filling mining method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110378032A (en) * | 2019-07-22 | 2019-10-25 | 安徽马钢张庄矿业有限责任公司 | A kind of mining explosion presplit blasting determination method for parameter |
| CN113090265A (en) * | 2021-05-19 | 2021-07-09 | 安徽马钢张庄矿业有限责任公司 | Novel 90m high and middle section fan-shaped deep hole stoping method |
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|---|---|
| CN108709467B (en) | 2020-07-03 |
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