CN108398067B - On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge - Google Patents
On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge Download PDFInfo
- Publication number
- CN108398067B CN108398067B CN201810217209.1A CN201810217209A CN108398067B CN 108398067 B CN108398067 B CN 108398067B CN 201810217209 A CN201810217209 A CN 201810217209A CN 108398067 B CN108398067 B CN 108398067B
- Authority
- CN
- China
- Prior art keywords
- hole
- length
- medium
- powder charge
- detonator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000843 powder Substances 0.000 title claims abstract description 69
- 238000005422 blasting Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004080 punching Methods 0.000 title claims abstract description 13
- 239000002360 explosive Substances 0.000 claims abstract description 49
- 230000037452 priming Effects 0.000 claims abstract description 39
- 230000011218 segmentation Effects 0.000 claims abstract description 35
- 238000004880 explosion Methods 0.000 claims abstract description 16
- 238000011068 loading method Methods 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 238000005474 detonation Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000000839 emulsion Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 4
- 239000007799 cork Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 2
- 235000020004 porter Nutrition 0.000 claims 2
- 241000668842 Lepidosaphes gloverii Species 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/10—Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention belongs to metal mine technical fields, and in particular on a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge；From the upward segmentation Drilling medium-length hole of next segmentation, and it is penetrated through with a upper segmentation, blasthole hole clog is filled in blasthole bottom hole, and it is packed into stemming, complete the plug-hole of lower orifice, by arranging multistage priming bomb and bulk explosive into blasthole, and the method for stemming progress multistage explosion is used in blasthole, it solves mine down-hole and carries out the technical problem for realizing In-hole short delay explosion in medium-length hole blasting operation, by the method may be implemented on medium-length hole under punching to the In-hole short delay explosion of powder charge, in medium-length hole blasting simultaneous shaft sin king, both loading rate is improved, in turn ensure demolition effect, ensure the success of explosion Cheng Jing.
Description
Technical field
The invention belongs to metal mine technical fields, and in particular on a kind of medium-length hole under punching into the hole of powder charge it is micro-
Poor blasting method.
Background technique
In metal mine field of mining, extensive use is had been obtained in Deep Hole Blasting, and main application is thick big
In the stope mining of ore body.More and more mines use medium-length hole blasting simultaneous shaft sin king technology in the driving of courtyard at present,
It is difficult to realize In-hole short delay explosion in the explosion for upward hole, generally carries out continuous charging into blasthole using explosive loader,
Or powder stick is fixed on bamboo pole and is given to realize spaced loading in hole, but the effect is unsatisfactory in practical explosion in blasthole,
Continuous charging can make explosive payload excessive, not only cause blasting cost excessively high but also will affect demolition effect, destroy periphery blasthole,
Backbreaking, it is serious to owe digging phenomenon；The enterprising row interval powder charge of bamboo pole is fixed on using powder stick, is easily blocked between two sections of medicines, serious shadow
Demolition effect is rung, and powder charge process is complicated for operation, large labor intensity, production efficiency is low.
Summary of the invention
In order to overcome the above problem, the present invention provide on a kind of medium-length hole under punching to the In-hole short delay explosion side of powder charge
Method, by being segmented downward powder charge after lower segmentation upward perforating, with upper segmentation perforation, then from upper, there are corresponding for segmentation up and down
Working space carries out the technical problem for realizing In-hole short delay explosion in medium-length hole blasting operation to solve mine down-hole, passes through this
Method may be implemented both to improve in medium-length hole blasting simultaneous shaft sin king on medium-length hole to the short-delay blasting into charging hole under punching
Loading rate, in turn ensures demolition effect, it is ensured that the success of explosion Cheng Jing.
In order to achieve the above object, technical scheme is as follows:
Step 1: Drilling up-hole, i.e. medium-length hole 1 will guarantee that blasthole is vertical in boring procedure, control hole deviation
Rate；
Step 2: production blasthole hole clog 4, blasthole hole clog 4 is taper stopper 43 made of being made as cork, cone
43 center of shape stopper is drilled with steel wire perforation 42, and the perforation of 43 bottom centre's face steel wire of taper stopper is provided with baffle ring at 42 centers
44；
Step 3: blasthole hole clog 4 being filled in the lower orifice of medium-length hole 1, and stoppered, by finer wire 41 from
1 bottom hole of medium-length hole is transferred on 1 top of medium-length hole, and finer wire 41 is passed through to the steel wire perforation 42 of taper stopper 43, and by thin steel
41 one end of silk are connected on baffle ring 44, and finer wire 41 is prevented to be extracted from steel wire perforation 42, and the other end passes through medium-length hole 1 and twines
On one section of reinforcing bar, reinforcing bar traverse to 1 top of medium-length hole is prevented into blasthole hole clog to suspend blasthole hole clog 4 in midair
4 are rushed out, then stemming 5 is filled in into medium-length hole 1, and are attached to stemming 5 on blasthole hole clog 4, stemming 5
Stemming length be not less than 0.3m；
Step 4: dissipating for lower segmentation is packed into above stemming 5 into medium-length hole 1 from 1 top of medium-length hole using powder charge pipe 7
Blasting charge 3, and loaded length is determined according to the length mark C on powder charge pipe 7, guarantee to use powder charge pipe 7 when loaded length is 2m
Priming bomb 2 is sent to the bulk explosive 3 of lower segmentation (i.e. apart from the position of lower orifice stemming 2m), and observes powder charge pipe
7 length mark C is to record depth locating for priming bomb 2, it is ensured that priming bomb 2 is adjacent to bulk explosive 3, on the priming bomb 2
Detonator wire 6 extends to outside the top aperture of medium-length hole 1；
Step 5: continuing to fill bulk explosive 3 above priming bomb 2 into medium-length hole 1 using powder charge pipe 7 after installing priming bomb 2,
Bulk explosive 3 must cover priming bomb 2, and priming bomb 2 is wrapped, and determine lower segmentation according to blast hole depth and In-hole short delay number of segment
Powder charge total length, when powder charge total length to be achieved, stops powder charge, and extracts powder charge pipe 7, that is, completes the arrangement of lower segmentation explosive；
Step 6: continuing to be packed into stemming 5 above 1 top aperture of medium-length hole internally lower segmentation bulk explosive 3, real
Existing spaced loading, stemming 5 will be consolidated using tamper, are packed into length and are not less than 1.0m；
Step 7: the priming bomb 2 of the bulk explosive 3 and upper segmentation that are segmented in loading first uses powder charge pipe 7 to step 6 institute
It is packed into bulk explosive 3 above the stemming 5 stated, then priming bomb 2 is sent to being contacted in blasthole with upper segmentation bulk explosive 3, then
Using powder charge pipe 7, into medium-length hole 1, remainder dispenses bulk explosive 3, is filled to bulk explosive 3 away from 1 top aperture 0.5 of medium-length hole
Stop powder charge when~1.0m, the detonator wire 6 on the priming bomb 2 equally extends to outside the top aperture of medium-length hole 1；
Step 8: it at the plug to 1 top aperture of medium-length hole of stemming 5, and is consolidated with tamper, stemming length is not less than
0.5m keeps detonator wire 6 to be still retained in outside the top aperture of medium-length hole 1 to guarantee multiple-row blasting quality；
Step 9: in the same big gun downhole explosion, the different number of segment detonations of the detonator 22 of the detonator 22 of upper segmentation and lower segmentation,
The detonator 22 of lower segmentation first detonates, the detonator 22 being segmented in re-detonating after the 50ms of interval, if the depth of medium-length hole 1 is not able to satisfy two
When the interval detonation of section bulk explosive 3 requires, need to be arranged three sections or four sections according to blast hole depth and the determination of In-hole short delay number of segment
Bulk explosive 3, and successively detonate from bottom to up.
The powder charge pipe 7 uses diameter to make for the hose of 32mm, makes length every 0.5m using reflective strip thereon
C is identified, and marks its corresponding length.
The priming bomb 2 includes detonation shell case 21, detonator 22 and emulsion 23, and emulsion 23 is emulsified using web-like
Explosive, and detonation shell case 21 is filled up, detonator 22 is inserted into emulsion 23, and detonator wire 6 is carried on detonator 22, and detonator 22 is adopted
With msdelayed light emission Nonel detonator.
The medium-length hole 1 is that need to be divided into multistage detonation when blasthole total depth is greater than 10m, i.e., according to every section of bulk explosive 3
Length is that the powder charge distance of 4-5m is segmented.
Compared with prior art, advantages of the present invention is as follows:
Construction safety of the present invention is reliable, and method is simple and easy, adjusts strong flexibility, overcomes Xiang Lianxu on traditional medium-length hole
The problems such as powder charge and spaced loading formal operations are complicated, working efficiency is low, demolition effect is poor realize on medium-length hole under punching
To the In-hole short delay explosion of powder charge, demolition effect ensure that, solve the difficulty that medium-length hole blasting simultaneous shaft sin king height is restricted
Topic, the popularization and application for medium-length hole blasting simultaneous shaft sin king technology provide technical guarantee.
Detailed description of the invention
Fig. 1 is implementation process schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of blasthole hole clog of the present invention.
Fig. 3 is the structural schematic diagram of priming bomb of the present invention.
Fig. 4 is powder charge pipe structural schematic diagram of the invention.
Wherein: 1 medium-length hole；2 priming bombs；21 detonation shell cases；22 detonators；23 emulsions；3 bulk explosives；4 blasthole apertures
Plug；41 finer wires；The perforation of 42 steel wires；43 taper stoppers；44 baffle rings；5 stemmings；6 detonator wires；7 powder charge pipes；C length
Mark.
Specific embodiment
The following further describes the present invention with reference to the drawings.
On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge, as shown in Figure 1, concrete operation step is such as
Under:
Step 1: Drilling up-hole, i.e. medium-length hole 1 will guarantee that blasthole is vertical in boring procedure, control hole deviation
Rate；
Step 2: as shown in Fig. 2, production blasthole hole clog 4, blasthole hole clog 4 is cone made of being made as cork
Shape stopper 43,43 center of taper stopper are drilled with steel wire perforation 42, and 43 bottom centre's face steel wire of taper stopper is perforated at 42 centers
It is provided with baffle ring 44；
Step 3: blasthole hole clog 4 being filled in the lower orifice of medium-length hole 1, and stoppered, by finer wire 41 from
1 bottom hole of medium-length hole is transferred on 1 top of medium-length hole, and finer wire 41 is passed through to the steel wire perforation 42 of taper stopper 43, and by thin steel
41 one end of silk are connected on baffle ring 44, and finer wire 41 is prevented to be extracted from steel wire perforation 42, and the other end passes through medium-length hole 1 and twines
On one section of reinforcing bar, reinforcing bar traverse to 1 top of medium-length hole is prevented into blasthole hole clog to suspend blasthole hole clog 4 in midair
4 are rushed out, then stemming 5 is filled in into medium-length hole 1, and are attached to stemming 5 on blasthole hole clog 4, stemming 5
Stemming length be not less than 0.3m；
Step 4: dissipating for lower segmentation is packed into above stemming 5 into medium-length hole 1 from 1 top of medium-length hole using powder charge pipe 7
Blasting charge 3, and loaded length is determined according to the length mark C on powder charge pipe 7, guarantee to reuse powder charge pipe when loaded length is 2m
7 send priming bomb 2 to the bulk explosive 3 of lower segmentation (i.e. apart from the position of lower orifice stemming 2m), and observe powder charge
The length mark C of pipe 7 is to record depth locating for priming bomb 2, it is ensured that priming bomb 2 is adjacent to bulk explosive 3, on the priming bomb 2
Detonator wire 6 extend to outside the top aperture of medium-length hole 1；
Step 5: continuing to fill bulk explosive 3 above priming bomb 2 into medium-length hole 1 using powder charge pipe 7 after installing priming bomb 2,
Bulk explosive 3 must cover priming bomb 2, and priming bomb 2 is wrapped, and determine lower segmentation according to blast hole depth and In-hole short delay number of segment
Powder charge total length, when powder charge total length to be achieved, stops powder charge, and extracts powder charge pipe 7, that is, completes the arrangement of lower segmentation explosive；
Step 6: continuing to be packed into stemming 5 above 1 top aperture of medium-length hole internally lower segmentation bulk explosive 3, real
Existing spaced loading, stemming 5 will be consolidated using tamper, are packed into length and are not less than 1.0m；
Step 7: the priming bomb 2 of the bulk explosive 3 and upper segmentation that are segmented in loading first uses powder charge pipe 7 to step 6 institute
It is packed into bulk explosive 3 above the stemming 5 stated, then priming bomb 2 is sent to being contacted in blasthole with upper segmentation bulk explosive 3, then
Using powder charge pipe 7, into medium-length hole 1, remainder dispenses bulk explosive 3, is filled to bulk explosive 3 away from 1 top aperture 0.5 of medium-length hole
Stop powder charge when~1.0m, the detonator wire 6 on the priming bomb 2 equally extends to outside the top aperture of medium-length hole 1, that is, uses
Two sections of bulk explosives 3 are spaced apart by stemming 5；
Step 8: it at the plug to 1 top aperture of medium-length hole of stemming 5, and is consolidated with tamper, stemming length is not less than
0.5m keeps detonator wire 6 to be still retained in outside the top aperture of medium-length hole 1 to guarantee multiple-row blasting quality；
Step 9: in the same big gun downhole explosion, the different number of segment detonations of the detonator 22 of the detonator 22 of upper segmentation and lower segmentation,
The detonator 22 of lower segmentation first detonates, the detonator 22 being segmented in re-detonating after the 50ms of interval, if the depth of medium-length hole 1 is not able to satisfy two
When the interval detonation of section bulk explosive 3 requires, need to be arranged three sections or four sections according to blast hole depth and the determination of In-hole short delay number of segment
Bulk explosive 3, and successively detonate from bottom to up.
The powder charge pipe 7 uses diameter to make for the hose of 32mm, makes length every 0.5m using reflective strip thereon
Identify C, and mark its corresponding length, when powder charge 7 powder charge of pipe needs to fill in powder charge pipe 7 to medium-length hole 1, and with powder charge into
Row at the uniform velocity extracts powder charge pipe 7 out.
The priming bomb 2 includes detonation shell case 21, detonator 22 and emulsion 23, and emulsion 23 is emulsified using web-like
Explosive, and detonation shell case 21 is filled up, detonator 22 is inserted into emulsion 23, and detonator wire 6 is carried on detonator 22, and detonator 22 is adopted
With msdelayed light emission Nonel detonator.
The medium-length hole 1 is that need to be divided into multistage detonation when blasthole total depth is greater than 10m, i.e., according to every section of bulk explosive 3
Length is that the powder charge distance of 4-5m is segmented.
Town river flowing from Guizhou Province through Hunan into Dongting Lake gold mine underground mainly use sublevel caving method without sill pillar carry out back production, using on YGZ-90 drilling machine Drilling in
Deep hole is tested in the driving of courtyard and is tunneled using medium-length hole blasting simultaneous shaft sin king technology, but powder charge uses continuous charging
Form, can not achieve In-hole short delay, not only demolition effect is poor, and backbreaking, it is serious to owe to dig phenomenon, the phenomenon that often will appear asphyxia by external pressure on the chest and abdomen,
And the depth of shaft formatting by one blasting is restricted, and can only tunnel 10m cutting well below, and use loading method of the invention
In-hole short delay segmentation detonation may be implemented when tunneling 10m and being even greater than the courtyard of 10m depth, reach better demolition effect.
Town river flowing from Guizhou Province through Hunan into Dongting Lake gold mine by the method for the invention, In-hole short delay explosion is used in the upraise of 15m, is divided in each blasthole
Three sections of progress successively explosions, realize in hole, short-delay blasting outside hole, and demolition effect is good, and the medicine that operation is used compared with other mines
The form that volume is fixed on the enterprising row interval powder charge of bamboo pole wants convenient and efficient, high-efficient, and this method is medium-length hole blasting simultaneous shaft sin king
Technology provides technical guarantee in the upraise for being more than or equal to 10m depth.
Claims (4)
1. on a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge, it is characterised in that include the following steps:
Step 1: Drilling up-hole, i.e. medium-length hole (1) will guarantee that blasthole is vertical in boring procedure, control hole deviation rate；
Step 2: production blasthole hole clog (4), blasthole hole clog (4) is taper stopper (43) made of being made as cork,
Taper stopper (43) center is drilled with steel wire perforation (42), and the perforation of taper stopper (43) bottom centre's face steel wire is set at (42) center
It is equipped with baffle ring (44)；
Step 3: blasthole hole clog (4) being filled in the lower orifice of medium-length hole (1), and is stoppered, by finer wire (41)
Medium-length hole (1) bottom hole is transferred to from medium-length hole (1) top, and the steel wire that finer wire (41) pass through taper stopper (43) is perforated
(42), it and by finer wire (41) one end is connected on baffle ring (44), finer wire (41) is prevented to be extracted from steel wire perforation (42),
The other end passes through medium-length hole (1) and is wound on one section of reinforcing bar, by reinforcing bar traverse to medium-length hole (1) top, to suspend blasthole in midair
Hole clog (4) prevents blasthole hole clog (4) to be rushed out, then fills in stemming (5) into medium-length hole (1), and make to block
Stemming (5) is attached on blasthole hole clog (4), and the stemming length of stemming (5) is not less than 0.3m；
Step 4: lower segmentation is packed into from medium-length hole (1) top to medium-length hole (1) interior stemming (5) top using powder charge pipe (7)
Bulk explosive (3), and loaded length is determined according to the length mark (C) on powder charge pipe (7), guarantees to make when loaded length is 2m
Priming bomb (2) is sent at the bulk explosive of lower segmentation (3) with powder charge pipe (7), and observes the length mark (C) of powder charge pipe (7)
To record depth locating for priming bomb (2), it is ensured that priming bomb (2) is adjacent to bulk explosive (3), the detonator on the priming bomb (2)
Payment to a porter (6) extends to outside the top aperture of medium-length hole (1)；
Step 5: it installs priming bomb (2) and continues to fill in bulk fry above medium-length hole (1) interior priming bomb (2) afterwards using powder charge pipe (7)
Medicine (3), bulk explosive (3) must cover priming bomb (2), and priming bomb (2) is wrapped, according to blast hole depth and In-hole short delay section
Number determines the lower powder charge total length being segmented, and when powder charge total length to be achieved stops powder charge, and extracts powder charge pipe (7), that is, under completing
It is segmented the arrangement of explosive；
Step 6: continuing to be packed into stemming (5) above medium-length hole (1) top aperture internally lower segmentation bulk explosive (3),
Realize spaced loading, stemming (5) will be consolidated using tamper, be packed into length and be not less than 1.0m；
Step 7: the bulk explosive (3) being segmented in loading and the priming bomb (2) of upper segmentation first use powder charge pipe (7) to step 6
Be packed into bulk explosive (3) above the stemming (5), then by priming bomb (2) send in blasthole with upper segmentation bulk explosive
(3) contact, reuse powder charge pipe (7) to medium-length hole (1) interior remainder packing bulk explosive (3), to bulk explosive (3) be filled to away from
Stop powder charge when medium-length hole (1) 0.5~1.0m of top aperture, the detonator wire (6) on the priming bomb (2) equally extends to middle depth
Outside the top aperture in hole (1)；
Step 8: it at stemming (5) plug to medium-length hole (1) top aperture, and is consolidated with tamper, stemming length is not less than
0.5m keeps detonator wire (6) to be still retained in outside the top aperture of medium-length hole (1) to guarantee multiple-row blasting quality；
Step 9: in the same big gun downhole explosion, the detonator (22) of upper segmentation and the different number of segment detonations of the detonator (22) of lower segmentation,
The detonator (22) of lower segmentation first detonates, the detonator (22) being segmented in re-detonating after the 50ms of interval, if the depth of medium-length hole (1) cannot
When meeting the detonation of two sections of bulk explosives (3) interval and requiring, need to be arranged three sections according to blast hole depth and the determination of In-hole short delay number of segment
Or four sections of bulk explosives (3), and successively detonate from bottom to up.
2. on a kind of medium-length hole according to claim 1 under punching to the In-hole short delay blasting method of powder charge, feature
It is that the powder charge pipe (7) uses diameter to make for the hose of 32mm, long scale is made every 0.5m using reflective strip thereon
Know (C), and marks its corresponding length.
3. on a kind of medium-length hole according to claim 1 under punching to the In-hole short delay blasting method of powder charge, feature
It is that the priming bomb (2) includes detonation shell case (21), detonator (22) and emulsion (23), emulsion (23) is using volume
Shape emulsion, and detonation shell case (21) is filled up, detonator (22) is inserted into emulsion (23), and detonator is carried on detonator (22)
Payment to a porter (6), detonator (22) use msdelayed light emission Nonel detonator.
4. on a kind of medium-length hole according to claim 1 under punching to the In-hole short delay blasting method of powder charge, feature
It is that multistage detonation need to be divided into when medium-length hole (1) the i.e. blasthole total depth is greater than 10m, i.e., according to every section of bulk explosive (3)
Length is that the powder charge distance of 4-5m is segmented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217209.1A CN108398067B (en) | 2018-03-16 | 2018-03-16 | On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217209.1A CN108398067B (en) | 2018-03-16 | 2018-03-16 | On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108398067A CN108398067A (en) | 2018-08-14 |
| CN108398067B true CN108398067B (en) | 2019-09-17 |
Family
ID=63092397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810217209.1A Active CN108398067B (en) | 2018-03-16 | 2018-03-16 | On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108398067B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870084B (en) * | 2019-03-20 | 2020-05-08 | 中南大学 | VCR mining method hole-sweeping-free blasting charge structure and construction method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2436964A1 (en) * | 1978-09-20 | 1980-04-18 | Applic Plastiques Ste Bour | CARTRIDGE FOR STUFFING MINE HOLES |
| SU1464032A1 (en) * | 1987-05-04 | 1989-03-07 | Государственный Научно-Исследовательский,Проектно-Конструкторский И Проектный Институт Угольной Промышленности | Plug for wells |
| CN102182461A (en) * | 2011-04-02 | 2011-09-14 | 山东黄金矿业（玲珑）有限公司 | Efficient mining method for thick metal ore body in slanting |
| CN102619513B (en) * | 2012-03-26 | 2013-12-25 | 中南大学 | Room and pillar type medium-length hole filling mining method using bottom ore withdrawal structures simultaneously arranged in original rock |
| CN105019902B (en) * | 2015-05-12 | 2017-03-22 | 中冶北方（大连）工程技术有限公司 | Intra-vein inclined drift overhand cut-and-filling mining method |
-
2018
- 2018-03-16 CN CN201810217209.1A patent/CN108398067B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108398067A (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108132005B (en) | A kind of method of short-delay blasting in medium-length hole upward hole | |
| CN102808622B (en) | Method for recovering ore pillar by medium-length hole and deep hole combined blasting technology | |
| CN205561688U (en) | Go up big gun hole arrangement structure to medium -length hole undercutting blasting | |
| CN103306679B (en) | " ︱ type " scope of freedom slotting simultaneous shaft sin king technique | |
| CN103244180B (en) | Gob-side entry driving surrounding rock control method using remaining small pillars | |
| CN109029168B (en) | Blasting treatment method for underground suspended roof | |
| CN106767212B (en) | A kind of two-region undercut blast hole arrangement and its explosion well completion method of application | |
| CN108007285A (en) | A kind of stone head deep hole sublevel is segmented efficient Cut Blasting method | |
| CN106089212B (en) | Hard rock quickly digs courtyard blasting design method | |
| CN102494572A (en) | Blasting method for undermining and tunnelling in mode of distributing hollow holes at periphery and solid hole in center | |
| CN111058847B (en) | Continuous large-aperture deep hole blasting mechanized mining method for thick and large ore body | |
| CN109870084B (en) | VCR mining method hole-sweeping-free blasting charge structure and construction method thereof | |
| CN112196537B (en) | Medium-diameter deep hole composite slot drawing process for steeply inclined medium-thickness ore body | |
| CN110260735A (en) | A kind of diamond shape major diameter emptying aperture burn cut structure and lane construction technique | |
| CN106288991B (en) | A kind of underground mining cuts kerve method of going up a hill | |
| CN107525443A (en) | The explosion method of ignition of fan shaped medium length hole | |
| CN108398067B (en) | On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge | |
| CN118327584A (en) | Natural caving mining method in combination stage of deep hole pre-fracturing and hydraulic fracturing of steep thin ore body | |
| CN201159620Y (en) | Deep borehole blasting cartridge | |
| CN114183138A (en) | Coal seam end mining drilling hole presplitting blasting method | |
| CN109974545A (en) | A kind of medium-length hole blasting outstanding top processing method in sublevel caving method | |
| CN109372509A (en) | Arrangement method for double-hollow-hole rhombic cut holes in access filling mining | |
| CN114935290B (en) | Pre-splitting blasting method for cutting single roadway and cutting deep hole on two sides of top-cutting retained roadway | |
| CN116006179A (en) | Top and bottom column and corner residual ore recovery method for underground metal mine | |
| CN213392157U (en) | Construction structure for blasting high-order section drop shaft into well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |