CN108398067A - 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
- CN108398067A CN108398067A CN201810217209.1A CN201810217209A CN108398067A CN 108398067 A CN108398067 A CN 108398067A CN 201810217209 A CN201810217209 A CN 201810217209A CN 108398067 A CN108398067 A CN 108398067A
- 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.)
- Granted
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 22
- 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 36
- 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
- 239000007799 cork Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 239000000284 extract 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
- 230000000903 blocking effect Effects 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
- 230000004888 barrier function Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram 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
- 238000004519 manufacturing process Methods 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
- 238000000605 extraction 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)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (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, solve the technical barrier that mine down-hole realized in medium-length hole blasting operation In-hole short delay explosion, 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 technology
In metal mine field of mining, Deep Hole Blasting has been obtained for extensive use, 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 can influence demolition effect, destroy periphery blasthole,
Backbreaking, it is serious to owe digging phenomenon；The enterprising between-line spacing 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, labor intensity is big, low production efficiency.
Invention content
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 the way that in lower segmentation upward perforating, after being penetrated through with upper segmentation, then from the upper downward powder charge of segmentation, there are corresponding for segmentation up and down
Working space passes through this to solve the technical barrier that mine down-hole realized in medium-length hole blasting operation In-hole short delay explosion
Method may be implemented both to improve in medium-length hole blasting simultaneous shaft sin king to the short-delay blasting into charging hole under punching on medium-length hole
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 ensure that blasthole is vertical in boring procedure, control hole deviation
Rate；
Step 2：Blasthole hole clog 4 is made, blasthole hole clog 4 is taper stopper 43 made of being made by cork, cone
43 center of shape stopper is drilled with steel wire perforation 42, and taper stopper is provided with baffle ring at 43 42 centers of bottom centre's face steel wire perforation
44；
Step 3：Blasthole hole clog 4 is filled in the lower orifice of medium-length hole 1, and is 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 stemming 5 is made to be attached 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, ensure 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 the depth residing 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：Continue 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 lower segmentation is determined according to blast hole depth and In-hole short delay hop count
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：Continue to be packed into stemming 5 above 1 top aperture of medium-length hole internally lower segmentation bulk explosive 3, it is 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
The top of stemming 5 stated is packed into bulk explosive 3, then priming bomb 2 is sent to being contacted with upper segmentation bulk explosive 3 in blasthole, then
Using powder charge pipe 7, into medium-length hole 1, remainder dispenses bulk explosive 3, waits for that bulk explosive 3 is filled to 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：At the plug to 1 top aperture of medium-length hole of stemming 5, it is used in combination tamper to consolidate, 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 ensure multiple-row blasting quality；
Step 9：In the same big gun downhole explosion, the different hop count detonations of 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 cannot meet two
When the interval detonation of section bulk explosive 3 requires, three sections or four sections of setting is needed according to blast hole depth and the determination of In-hole short delay hop count
Bulk explosive 3, and detonate successively from bottom to up.
The powder charge pipe 7 is made of the hose of a diameter of 32mm, makes length every 0.5m using reflecting strips 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 more 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 practicable, and adjustment flexibility is strong, overcomes on traditional medium-length hole to continuous
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.
Description of the drawings
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 the powder charge pipe structural schematic diagram of the present 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；42 steel wires are perforated；43 taper stoppers；44 baffle rings；5 stemmings；6 detonator wires；7 powder charge pipes；C length
Mark.
Specific implementation mode
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 ensure that blasthole is vertical in boring procedure, control hole deviation
Rate；
Step 2：As shown in Fig. 2, making blasthole hole clog 4, blasthole hole clog 4 is bored made of being made by 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 is filled in the lower orifice of medium-length hole 1, and is 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 stemming 5 is made to be attached 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, ensure 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 the depth residing 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：Continue 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 lower segmentation is determined according to blast hole depth and In-hole short delay hop count
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：Continue to be packed into stemming 5 above 1 top aperture of medium-length hole internally lower segmentation bulk explosive 3, it is 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
The top of stemming 5 stated is packed into bulk explosive 3, then priming bomb 2 is sent to being contacted with upper segmentation bulk explosive 3 in blasthole, then
Using powder charge pipe 7, into medium-length hole 1, remainder dispenses bulk explosive 3, waits for that bulk explosive 3 is filled to 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：At the plug to 1 top aperture of medium-length hole of stemming 5, it is used in combination tamper to consolidate, 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 ensure multiple-row blasting quality；
Step 9：In the same big gun downhole explosion, the different hop count detonations of 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 cannot meet two
When the interval detonation of section bulk explosive 3 requires, three sections or four sections of setting is needed according to blast hole depth and the determination of In-hole short delay hop count
Bulk explosive 3, and detonate successively from bottom to up.
The powder charge pipe 7 is made of the hose of a diameter of 32mm, makes length every 0.5m using reflecting strips thereon
Identify C, and mark its corresponding length, when powder charge 7 powder charge of pipe, needs in the plug to medium-length hole 1 of powder charge pipe 7, and with powder charge into
Row at the uniform velocity extraction powder charge pipe 7.
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 more 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 Drillings 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 wells below, and loading method using the present invention
In-hole short delay segmentation detonation may be implemented when tunneling 10m and being even greater than the courtyard of 10m depths, 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 explosions successively, 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 between-line spacing powder charge of bamboo pole wants convenient and efficient, efficient, and this method is medium-length hole blasting simultaneous shaft sin king
Technology provides technical guarantee in the upraise more than or equal to 10m depths.
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 ensure that blasthole is vertical in boring procedure, control hole deviation rate；
Step 2：Blasthole hole clog (4) is made, blasthole hole clog (4) is taper stopper (43) made of being made by cork,
Taper stopper (43) center is drilled with steel wire perforation (42), and the face steel wire perforation of taper stopper (43) bottom centre is set at (42) center
It is equipped with baffle ring (44)；
Step 3：Blasthole hole clog (4) is 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 passes through the steel wire of taper stopper (43) to perforate finer wire (41)
(42), it and by finer wire (41) one end is connected on baffle ring (44), is extracted in preventing finer wire (41) from perforating (42) from steel wire,
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 makes blocking
Stemming (5) is attached on blasthole hole clog (4), and the stemming length of stemming (5) is not less than 0.3m；
Step 4：Using powder charge pipe (7) lower segmentation is packed into from medium-length hole (1) top to medium-length hole (1) interior stemming (5) top
Bulk explosive (3), and loaded length is determined according to the length mark (C) on powder charge pipe (7), ensures to make when loaded length is 2m
Priming bomb (2) is sent to 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 the depth residing 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：Priming bomb (2) is installed to continue 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：Continue to be packed into stemming (5) above medium-length hole (1) top aperture internally lower segmentation bulk explosive (3),
It realizes that spaced loading, stemming (5) will be consolidated using tamper, is packed into length and is 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
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), wait for 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：At stemming (5) plug to medium-length hole (1) top aperture, it is used in combination tamper to consolidate, 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 ensure multiple-row blasting quality；
Step 9：In the same big gun downhole explosion, the detonator (22) of upper segmentation and the different hop count 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 two sections of bulk explosives (3) interval detonations of satisfaction require, three sections of setting is needed according to blast hole depth and the determination of In-hole short delay hop count
Or four sections of bulk explosives 3, and detonate successively 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) is made of the hose of a diameter of 32mm, makes long scale every 0.5m using reflecting strips 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 more 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 true CN108398067A (en) | 2018-08-14 |
| CN108398067B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870084A (en) * | 2019-03-20 | 2019-06-11 | 中南大学 | A kind of VCR mining codes exempt from cleaning bottom of hole blast charging structure and its construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031561A (en) * | 1978-09-20 | 1980-04-23 | Bourguignonne Plastique | Cartridges for plugging blasting 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 |
| CN102619513A (en) * | 2012-03-26 | 2012-08-01 | 中南大学 | Room and pillar type medium-length hole filling mining method using bottom ore withdrawal structures simultaneously arranged in original rock |
| CN105019902A (en) * | 2015-05-12 | 2015-11-04 | 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
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031561A (en) * | 1978-09-20 | 1980-04-23 | Bourguignonne Plastique | Cartridges for plugging blasting 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 |
| CN102619513A (en) * | 2012-03-26 | 2012-08-01 | 中南大学 | Room and pillar type medium-length hole filling mining method using bottom ore withdrawal structures simultaneously arranged in original rock |
| CN105019902A (en) * | 2015-05-12 | 2015-11-04 | 中冶北方（大连）工程技术有限公司 | Intra-vein inclined drift overhand cut-and-filling mining method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870084A (en) * | 2019-03-20 | 2019-06-11 | 中南大学 | A kind of VCR mining codes exempt from cleaning bottom of hole blast charging structure and its construction method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108398067B (en) | 2019-09-17 |
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 | |
| CN103306679B (en) | " ︱ type " scope of freedom slotting simultaneous shaft sin king technique | |
| CN205561688U (en) | Go up big gun hole arrangement structure to medium -length hole undercutting blasting | |
| CN101328809B (en) | Non-bottom pillar deep hole falling-back type mining method | |
| CN102016490B (en) | Devices and methods for perforating a wellbore | |
| CN103244180B (en) | Gob-side entry driving surrounding rock control method using remaining small pillars | |
| CN109029168B (en) | Blasting treatment method for underground suspended roof | |
| CN106014414B (en) | A kind of explosion stoping method of block stoping level pillar | |
| CN106089212B (en) | Hard rock quickly digs courtyard blasting design method | |
| CN104481539A (en) | Extruding blasting caving mining method for self-pulling slot | |
| CN111058847B (en) | Continuous large-aperture deep hole blasting mechanized mining method for thick and large ore body | |
| CN110260735A (en) | A kind of diamond shape major diameter emptying aperture burn cut structure and lane construction technique | |
| CN112179225A (en) | One-time well-completion blasting method | |
| CN110307762A (en) | A kind of courtyard quick well formation method based on deep hole hole by hole initiation technique | |
| CN106288991B (en) | A kind of underground mining cuts kerve method of going up a hill | |
| CN108398067B (en) | On a kind of medium-length hole under punching to the In-hole short delay blasting method of powder charge | |
| CN109870084A (en) | A kind of VCR mining codes exempt from cleaning bottom of hole blast charging structure and its construction method | |
| CN109372509A (en) | Arrangement method for double-hollow-hole rhombic cut holes in access filling mining | |
| AU2018282890B2 (en) | Limited penetration perforating methods for oilfield applications | |
| CN114935290B (en) | Pre-splitting blasting method for cutting single roadway and cutting deep hole on two sides of top-cutting retained roadway | |
| CN213392157U (en) | Construction structure for blasting high-order section drop shaft into well | |
| CN105240044A (en) | Method for preventing and treating coal and gas outburst by explosion | |
| CN110145981A (en) | A kind of explosion well completion method for shallow vertical shaft | |
| CN219387882U (en) | Coal seam floor burst protection lane and high-efficient drainage collaborative construction structure of gas |
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 |