CN110260737A - Explosion-proof tube and explosion-proof method for sectionally and alternately charging closed space - Google Patents
Explosion-proof tube and explosion-proof method for sectionally and alternately charging closed space Download PDFInfo
- Publication number
- CN110260737A CN110260737A CN201910602116.5A CN201910602116A CN110260737A CN 110260737 A CN110260737 A CN 110260737A CN 201910602116 A CN201910602116 A CN 201910602116A CN 110260737 A CN110260737 A CN 110260737A
- Authority
- CN
- China
- Prior art keywords
- explosion
- flame proof
- detonation
- pipe
- mild detonating
- 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
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 103
- 238000005474 detonation Methods 0.000 claims abstract description 64
- 239000002184 metal Substances 0.000 claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 238000004880 explosion Methods 0.000 claims abstract description 38
- 239000002360 explosive Substances 0.000 claims abstract description 29
- 239000003814 drug Substances 0.000 claims description 12
- 230000003139 buffering effect Effects 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000003111 delayed effect Effects 0.000 claims description 6
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002889 sympathetic effect Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 23
- 238000005192 partition Methods 0.000 description 13
- 238000005422 blasting Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000002775 capsule Substances 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 206010039509 Scab Diseases 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000009740 moulding (composite fabrication) Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition 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
-
- 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)
- Pressure Welding/Diffusion-Bonding (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a detonation explosion-proof tube for sectionally and alternately charging closed space and an explosion-proof method, wherein an explosion transfer device comprises an upper connecting terminal and a lower connecting terminal which are movably connected through threads; a first buffer cushion is arranged between the upper explosive tube and the flange structure, the first buffer cushion is of a hollow structure, and a second flexible detonating cord is arranged in a central through hole of the first buffer cushion; the outside of lower connecting terminal is provided with a plurality of cascaded annular metal expansion pipes, is provided with the second blotter between lower floor's powder column and the flange. The detonation of the upper explosive is converted into the detonation energy of the lower explosive, and the lower cartridge case is prevented from being impacted, damaged and sympathetic explosion after the explosive column at the upper part explodes through the comprehensive explosion-proof effect.
Description
Technical field
The invention belongs to blasting technique field, it is related to a kind of confined space section gap powder charge detonation flame proof pipe and flame proof side
Method.
Background technique
In mining, building and Military Application field, it usually needs cut the special type that section is V-arrangement on hard rock
Pit body, as shown in Figure 1, the V-arrangement pit be one it is upper it is wealthy under it is narrow, pit body oral area d be less than depth h and have certain tilt angle
It is required that V-arrangement pit, be commonly called as variation formula funnel, the mode that explosion is generallyd use in excavation carries out.It is normal that Fig. 2 gives V-arrangement pit
The forming method of rule layering explosion, bores several keyholes, including centre bore and edge hole, keyhole on the upper layer of rock first
Location arrangements such as Fig. 2 below hole location schematic diagram.The explosive of small equivalent is installed in each hole, is carried out after first layer explosion clear
Slag, then repeats the above steps and carries out the blasting clearing of the second layer again, forms the pit body finally by multiple bursting work.It should
For method the problem is that drilling hole amount is very big, the activity duration is long, and the consumption of explosive is also more, it is difficult to it is fast to meet Military Application occasion
The molding demand of speed.
Summary of the invention
The purpose of the present invention is to provide a kind of confined space section gap powder charge detonation flame proof pipe and flame proof methods, to
The detonation wave of powder charge carries out effective attenuation, avoids the induced detonation of subsequent powder charge, and then face empty blasting technique by secondary, adopts
Special V-arrangement pit is disposably excavated out in solid rock with small equivalent explosive, realizes the rapid shaping in quick-fried hole.
The specific technical solution of the present invention is as follows:
A kind of confined space section gap powder charge detonation flame proof pipe, it is characterised in that: including what is be actively coupled by screw thread
Upper connection terminal and lower connection terminal；
Upper connection terminal is flange arrangement, and the top pencil of top powder column unit is threaded in upper connection terminal
On flange arrangement；The first cushion is provided between top pencil and flange arrangement；First cushion is hollow structure, center
Through-hole is internally provided with the second mild detonating fuze；Be provided on the outside of first cushion annular groove be connected to annular groove and central through hole
Straight trough, the first mild detonating fuze is installed inside annular groove and straight trough；First mild detonating fuze is led with the second flexibility
Quick-fried rope is in contact；
The upper end of lower connection terminal is sleeve, and the outside of sleeve is provided with inner sleeve and outer tube, inner sleeve and outer tube
Between be provided with several cascade endless metal expansion tubes, the lower end of lower connection terminal is flange, under the powder column unit of lower part
Portion's pencil is threaded on flange；Lower layer's powder column is provided in the pencil of lower part, lower layer's powder column inside the pencil of lower part and
The second cushion is provided between flange.
In above-mentioned confined space section gap powder charge detonation flame proof pipe, the inner ring of endless metal expansion tube is provided with notch, interior
The position that notch is corresponded on casing and sleeve is provided with straight trough, and the 4th mild detonating fuze is equipped with inside endless metal expansion tube,
4th mild detonating fuze is coiled in the pipe of endless metal expansion tube and inside straight trough, and is in contact with the second mild detonating fuze.
In above-mentioned confined space section gap powder charge detonation flame proof pipe, explosive is filled in the pipe of endless metal expansion tube.
In above-mentioned confined space section gap powder charge detonation flame proof pipe, the quantity of endless metal expansion tube is two.
In above-mentioned confined space section gap powder charge detonation flame proof pipe, the top pencil tail end is internally provided with first
Metal bulging pipe；First metal bulging pipe is machined with internal screw thread, is connected with the external screw thread on upper connection terminal flange arrangement.
In above-mentioned confined space section gap powder charge detonation flame proof pipe, inner sleeve and outer tube are all made of silicon rubber and are made.
In above-mentioned confined space section gap powder charge detonation flame proof pipe, upper layer powder column and lower layer's powder column are TNT explosive.
In above-mentioned confined space section gap powder charge detonation flame proof pipe, the lower part charge unit include the second pencil and
Bottom cover, lower layer's powder column are blocked inside the second pencil by bottom cover；
A kind of section gap powder charge and delay boosting method for confined space, which comprises the following steps:
[1] section gap powder charge detonation flame proof pipe is placed in confined space；
[2] upper layer powder column explodes, and causes the detonation of the second mild detonating fuze；
After the detonation of [3] second mild detonating fuzes, causes the first mild detonating fuze and detonate, the first metal bulging pipe bulging, the
One cushion and the first metal bulging pipe comprehensive function, carry out buffering barrier to blast wave for the first time.
[4] second mild detonating fuzes cause the 4th mild detonating fuze and explosion filling in cascade endless metal expansion tube
Object explosion, inner sleeve, outer tube, upper connection terminal, lower connection terminal, the second cushion and endless metal expansion tube comprehensive function
Buffering barrier again is carried out to blast wave for the first time, prevents lower layer's powder column induced detonation.
The advantageous effects that this project has are as follows:
1, during the present invention is implemented, top powder charge detonation will be converted into the detonation energy of lower part powder charge, and lower part powder charge of detonating, energy
Amount control is one of critical issue of the project.Energy attenuating is too small, can directly ignite lower part powder charge, energy attenuating is excessive, again
Cannot detonate lower part powder charge, bring and miss-fire.The present invention is dropped by design detonation flame proof pipe, using hard isolation with soft slicing, step by step
The methods of low impact energy obstructs top powder charge to the detonation by influence of lower part powder charge, and realizes smooth propagation.It uses and is connecting first
Terminal rear and front end is equipped with the polymer material polyurethane of slicing, for reducing the intensity of detonation wave；Secondly in the buffering of front end
It joined the ring channel structures of built-in mild detonating fuze in pad, detonation energy prevented to propagate downwards；Finally set in the middle part of flame proof pipe
Endless metal expansion tube of the two-stage with explosion filler has been set, has been expanded under detonation wave effect, further clogs blasthole, hindered
It is moved downward every detonation product, detonation wave is stopped to be propagated, by integrating flameproof effect above, under preventing after the powder column explosion on top
Portion's cylindrantherae impacted, is destroyed and induced detonation.
2, delay a period of time ignites lower part powder column unit again after top powder column unit detonation of the present invention, realizes rock is quick-fried
Broken secondary blasting.When implementing middle and upper part charging explosion can throwing fall the rock on top, to lower part powder charge create one from
By face, lower part explosive blasting effect is improved；Two-part charge constitution creates top powder charge for lower part powder charge and faces sky simultaneously
Face reduces the minimum burden of two kinds of charge explosions, and a rapid shaping of V-arrangement pit has been reached with less powder charge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of ideal V-arrangement pit；
Fig. 2 is the explosive forming step schematic diagram of V-arrangement pit in the prior art；
Fig. 3 is that rapid shaping demolition set of the present invention lays implementation principle figure；
Fig. 4 is the composed structure schematic diagram of demolition set of the present invention；
Fig. 5 is the initiating unit structural schematic diagram of demolition set of the present invention；
Fig. 6 is the lower part charge unit structural schematic diagram of demolition set of the present invention；
Fig. 7 is the flame proof pipe structural schematic diagram of demolition set of the present invention；
Fig. 8 is A-A sectional structure chart in Fig. 7 of the present invention；
Fig. 9 is B-B sectional structure chart in Fig. 7 of the present invention；
Figure 10 is the structural schematic diagram of partition delay detonator of the present invention；
Appended drawing reference are as follows: 1-bottom cover；6-lower layer's powder columns；7-lower part pencils；8-partition delay detonators；9-annular gold
Belong to expansion tube；10-outer tubes；11-upper connection terminals；12-the first mild detonating fuze；13-the first cushion；14-the second
Mild detonating fuze；15-upper layer powder columns；16-top pencils；17-detonating capsules；18-plugs；19-detonator connectors；20—
Seal closure；21-detonation components；22-top powder column units；23-flame proof pipes；24-lower part powder column units；31-the second buffering
Pad；33-flanges；34-sleeves；35-inner sleeves；36-lower connection terminals；41-the first metal bulging pipe；43-thirds are soft
Property primacord；44-the four mild detonating fuze；45-explosion fillers；51-central through holes；52-annular grooves；53-straight troughs；
54-medicine cores；55-crusts；61-notches；81-delay detonators；82-connection igniting primers；83-baffle igniters；91-thunders
Pipe lead；92-pre- cavity preparations；93-demolition sets；The quick-fried hole in 94-tops；The quick-fried hole in 95-lower parts；96-rocks.
Specific embodiment
The purpose of the present invention is property explosive formings primary on hard rock to obtain the V-arrangement pit of special size, improves
The molding efficiency of pit body, and secondary filling explosive blasting construction bring operational danger is avoided, the scheme of use is in rock
It is packed into the demolition set of two-part explosive after upper drilling, and controls the delay between top explosive and lower part explosive, top is allowed to fill
Medicine is that lower part powder charge creates free face, reduces the minimum burden of two kinds of charge explosions, realizes hole with less powder charge
The onepull rapid shaping of body.
As shown in figure 3, main technological route of the invention are as follows: bore vertical direction in rock 96 using hand-held drill first
Blasthole 92, then by the present invention be integrated with upper and lower powder charge and be delayed propagation of explosion unit demolition set 93 i.e. tubular cratering explosive device according to
The height of setting, which is put into blasthole 92, ignites, and by the remote explosion of detonator lead 91, so that the first layer close to earth's surface fills
Medicine fractured rock, throwing disintegrating slag in the quick-fried hole 94 in the top that earth's surface forms inverted conical shape, and create for next layer of powder charge and newly face sky
Face.In 94 following distance of the quick-fried hole in top, separate explosion, the quick-fried hole 95 in formation lower part reach again for next layer of powder charge of delayed ignition
Primary igniting quick bursting forms V-arrangement pit.
Due to carrying out delaying blasting in the prefabricated blasthole of rock, the detonation wave that when top charging explosion generates, with hard
Hole wall propagate downwards, support to when the powder charge of lower part can the powder charge of direct detonation by influence lower part need top to fill furthermore to reach optimum efficiency
Be delayed hundreds of milliseconds after medicine explosion, and lower part powder charge of just detonating becomes the technical problem that the present invention faces.
Also there is the scheme of the upper and lower intermediate flame proof of powder column explosion in traditional explosive manner.Such as between two demolition sets
Flame proof material is set and carries out flame proof, first this flame proof material is generally only to play the role of obstructing shock wave, can not in explosion
The accurate explosion delay controlled between charge unit up and down, reaches upper layer powder charge of the present invention for lower layer's powder charge and provides wanting for free face
It asks；Second the present invention will guarantee the shape and size of V-arrangement pit, need to drill out one and demolition set on solid rock in advance
The bigger blasthole of diameter, therefore entire two-stage explosion carries out in the rock hole of a confined space, the explosion on explosion time upper layer
Shock wave energy ignites lower section explosive simultaneously and the effect of delay initiation is not achieved.Only overcome problem above, could finally realize
The rapid shaping of V-arrangement pit on solid rock.
As shown in figure 4, rock blasting device of the invention includes the detonation component 21 set gradually from top to bottom, top medicine
Pole unit 22, flame proof pipe 23 and lower part powder column unit 24；After the component 21 that detonates detonates, top powder column unit 22 is ignited to upper layer rock
The first separate explosion of stone, and ignite lower part powder column unit 24 after postponing a period of time by flame proof pipe 23 and second is carried out to underlying rock
Separate explosion forms the special V-arrangement pit for meeting size requirement.
As shown in Figure 4 and Figure 5, top powder column unit 22 includes the upper layer being arranged inside top pencil 16 and top pencil 16
Powder column 15, the plug 18 that upper layer powder column 15 is initiated component 21 block inside top pencil 16；Top pencil 16 is PVC material
It is made, predominantly mitigation weight.
The component 21 that detonates includes detonating capsule 17, plug 18 and seal closure 20, and quick-fried detonator 17 is used for the upper layer explosive that detonates, it
(not marking in figure) is connected in series with fuse cord and daraf(reciprocal of farad) igniter cap, usually individually storage, with sharp safety.Detonating capsule 17 passes through thunder
Pipe fitting 19 is fixed on plug 18, and plug 18 is made of plastics, is risen and is blocked upper layer explosive column and can fix detonator joint action.
Detonation 21 the top of component is provided with seal closure 20.Seal closure 20 plays sealing, waterproof and dustproof and protective effect.Detonator connector 19
Ensure the quick grafting of detonator in place and cannot pull, it is convenient and fast connection.
Fig. 6 gives 24 structural representation of lower part powder column unit of demolition set of the present invention, under lower part powder column unit 24 includes
Lower layer's powder column 6 of portion's pencil 7 and internal installation.Lower part pencil 7 is made of cold-drawn steel, on the one hand prevents for flame proof, another party
Face generates the impact to lower part powder charge for detonation when resisting top powder charge.
Fig. 7 to Figure 10 gives demolition set flame proof pipe structure of the present invention, and flame proof pipe 23 includes upper connection terminal 11 under
Connection terminal 36, the effect of connection terminal is to connect top powder column unit 22 and lower part powder column unit 24, and plays propagation of explosion, blocks
The effects of with support.
In Fig. 7 and Fig. 8, upper connection terminal 11 is flange arrangement, and the top pencil 16 of top powder column unit 22 passes through screw thread
It is connected on the flange arrangement of connection terminal 11；Pencil 16 tail end in top is internally provided with as a preferred method,
One metal bulging pipe 41；First metal bulging pipe 41 is machined with internal screw thread, with the external screw thread on upper 11 flange arrangement of connection terminal
It is connected.
The first cushion 13 is provided between top pencil 16 and flange arrangement.First cushion 13 is hollow structure, the
Two mild detonating fuzes 14 through-hole 51 through its center；The outside of first cushion 13 be provided with annular groove 52 be connected to 52 He of annular groove
First mild detonating fuze 12 is installed inside the straight trough 53 of central through hole 51, annular groove 52 and straight trough 53.First mild detonating fuze
12 middle section is wrapped in annular groove 52, and both ends are laid in straight trough 53.
Primacord includes medicine core 54 and crust 55 in Fig. 8, and the medicine core 54 and crust 55 of the first mild detonating fuze 12 are then with
The crust reliable contacts of two mild detonating fuzes 14, it is ensured that reliable to ignite.Second mild detonating fuze 14 mainly plays propagation of explosion, by
One mild detonating fuze 12 and subsequent partition delay detonator 8 are reliably ignited, and block the first metal bulging pipe 41 after exploding
Prevent it from moving down.The effect of first metal bulging pipe 41 is connection top powder column unit 22 and upper connection terminal 11, inside
Equipped with cushion, 22 detonation energy of pole unit that can be added medicine to effective attenuation is transmitted downwards.Cushion is made of polyurethane, can
The top explosive detonation bring that decays impact and destruction protect lower layer's medicament and the safety of other associated members, prevent metal from connecting
Connecting terminal is lost the effects of closure support by impact failure.
As shown in figures 7 and 9, the upper end of lower connection terminal 36 is sleeve 34, and the outside of sleeve 34 is provided with inner sleeve 35
With outer tube 10, inner sleeve 35 and outer tube 10 are all made of silicon rubber and are made, and are provided with ring between inner sleeve 35 and outer tube 10
Shape metal expansion pipe 9.Inner sleeve 35 is hollow structure, and through-hole, endless metal expand the second mild detonating fuze 14 through its center
The inner ring of pipe 9 is provided with notch 61, and the position that notch 61 is corresponded on inner sleeve 35 and sleeve 34 is provided with straight trough 53, and endless metal is swollen
4th mild detonating fuze 44 is installed inside tube expansion 9, the 4th mild detonating fuze 44 be coiled in the pipe of endless metal expansion tube 9 and
Inside straight trough 53, and with 14 reliable contacts of the second mild detonating fuze, it is ensured that it is reliable to ignite.The pipe of this outer annular metal expansion tube 9
It is inside also filled with explosion filler 45, the material of explosion filler 45 is explosive, can be ignited by primacord 44, explosion time is to ring
Shape metal expansion pipe 9 generates an active force, is allowed to radial bulging, and endless metal expansion tube 9 is embedded in outer made of silicon rubber
In casing 10, the outer diameter expansion for the rear sleeve that explodes, which increases, fits closely closure, while internal explosion filler 45 with petrosal foramen wall
After exploding, the detonation wave passed down after exploding to top powder column unit 22 plays barrier effect, prevents the powder column on top from exploding
Detonation energy transmits downwards afterwards, causes lower part pencil by transition impact, destroys, prevents induced detonation or rush to summit.Wherein explosion filling
Object 45 aims to overcome that the brisance of traditional primacord is small, is not sufficient to ensure that the effective swollen of endless metal expansion tube 9
It is swollen, it is ensured that explosion has enough expansive forces, plays and top explosive is blocked to transmit caused destruction downwards.
The lower end of lower connection terminal 36 is flange 33, and the lower part pencil 7 of lower part powder column unit 24 is threaded in method
On orchid 33；The second cushion 31 is provided between lower layer's powder column 6 and flange 33, the second cushion 31 is hollow structure, hollow part
Position is internally provided with partition delay detonator 8；On the one hand partition delay detonator 8 can live the energy barrier of primacord, on the other hand
Extension time and the detonation that can not influence the partition other end again, serve and form a connecting link.
In Figure 10, partition delay detonator 8 is made of delay detonator 81, connection igniting primer 82 and baffle igniter 83, partition
Igniter 83 on the internal screw thread of lower 36 central through hole of connection terminal, and is led with the second flexibility quick-fried by the external screw thread twist-on on head
Rope 14 docks.Baffle igniter effect is that detonation is turned burning, lights the delay powder of partition delay detonator 8, realizes delayed exploding.
In implementation, the second mild detonating fuze 14 is ignited after the blast impulse of upper layer powder column 15, the second mild detonating fuze 14 is again
The explosive of the first mild detonating fuze 12,83 input terminal of the 4th mild detonating fuze 44 and baffle igniter is ignited, then is passed by connection
82 medicament of fire tube ignites delay detonator 81, and after the setting time that is delayed, lower layer's powder column 6 is ignited.Partition delay detonator 8 is using conventional
The prior art, the time of delaying can ensure duration precision with product customization, and the extension of partition delay detonator 8 is about in this project
500 milliseconds.
The assembling of the entire demolition set of the present invention and detonation mode are as follows: before use, detonation component 21 is installed top
On pencil 16, then by top pencil 16 and upper 11 screw thread twist-on of connection terminal, finally again by the lower part medicine of lower part powder column unit 24
Pipe 7 is tightened with lower 36 screw thread of connection terminal, finally blocks the both ends of blasthole, takes out detonator electric wire, connects detonation electric wire, and electric wire is long
Degree is not less than 100 meters, and electric wire is pulled to home, connects dedicated initiator, is guaranteeing the live feelings without personnel, equipment of detonating
Under condition, detonate.
Below to introduce the design scheme and the molding principle of V-arrangement pit onepull that are used for demolition set.
(1) V-arrangement pit requirement
As shown in Figure 1, V-arrangement pit is inverted cone-shaped structure, pit body is not less than 110 centimetres deeply, and 50 centimetres of bottom width, bore is not small
In 65 centimetres.Substantially one it is upper it is wealthy under narrow cone, variation formula explosive funnel can also be referred to as；It is required that frying hole after explosion
Interior no concave-convex and unstable rock, while cheating interior sillar and being convenient for manual cleaning.
(2) parameter designing
The parameter of entire demolition set is as follows: top powder charge pipe is made of PVC material, having a size ofTop powder charge is 1.01 kilograms, and component weight is less than 1.5kg；Flame proof pipe is made of expanding material, ruler
It is very little to be less thanWeight is less than 1.2kg；Powder charge pipe in lower part is made of the preferable A3 steel of ductility, and size is small
InLower part powder charge is 1.2 kilograms, and component weight is less than 2.0kg.The flame proof delay time of upper and lower pencil is not
Less than 500ms.
(3) V-arrangement pit one-pass molding principle
The explosion principle of demolition set of the present invention is as follows:
[1] it is slightly larger than the pre- cavity preparation of pencil diameter using hand-held drill drill straight diameter first on rock, after then assembling
Demolition set be placed in hole；
[2] detonating capsule 17 is lighted a fire, and is caused upper layer powder column 15 and is exploded, and carries out first blasting to rock；
[3] detonation of second mild detonating fuze 14 of the initiation of detonating capsule 17 or upper layer powder column 15 cause the second flexibility after exploding and lead
Quick-fried rope 14 detonates；
After the detonation of [4] second mild detonating fuzes 14, cause the detonation of the first mild detonating fuze 12, the first metal bulging pipe 41 is swollen
Shape, 41 comprehensive function of the first cushion 13 and the first metal bulging pipe, carries out buffering barrier to blast wave for the first time；
[5] second mild detonating fuzes 14 cause the 4th mild detonating fuze 44 in cascade endless metal expansion tube 9 and quick-fried
Fried filler 45 explodes, inner sleeve 35, outer tube 10, upper connection terminal 11, lower connection terminal 36, the second cushion 31 and annular
Under 9 comprehensive function of metal expansion pipe, buffering again is carried out to blast wave for the first time and is obstructed；
[6] second mild detonating fuzes 14 cause partition delay detonator 8, and after hundreds of milliseconds, partition delay detonator 8 causes lower layer
Powder column 6 detonates, and carries out secondary blasting to rock, forms V-arrangement pit.
The present invention can implement on solid rock depth greater than 1.1 meters onepull form, it can also be used on rock its
The explosive forming of his special pit.
Claims (9)
1. a kind of confined space section gap powder charge detonation flame proof pipe, it is characterised in that: upper including being actively coupled by screw thread
Connection terminal (11) and lower connection terminal (36)；
Upper connection terminal (11) is flange arrangement, and the top pencil (16) of top powder column unit (22) is threaded in upper company
On the flange arrangement of connecting terminal (11)；The first cushion (13) are provided between top pencil (16) and flange arrangement；First is slow
Punching pad (13) is hollow structure, and central through hole (51) is internally provided with the second mild detonating fuze (14)；First cushion (13)
Outside be provided with annular groove (52) be connected to the straight trough (53) of annular groove (52) and central through hole (51), annular groove (52) and straight trough
(53) internal that first mild detonating fuze (12) are installed；First mild detonating fuze (12) and the second mild detonating fuze (14)
It is in contact；
The upper end of lower connection terminal (36) is sleeve (34), and the outside of sleeve (34) is provided with inner sleeve (35) and outer tube
(10), several cascade endless metal expansion tubes (9), lower connection terminal are provided between inner sleeve (35) and outer tube (10)
(36) lower end is flange (33), and the lower part pencil (7) of lower part powder column unit (24) is threaded on flange (33)；Under
It is provided with lower layer's powder column (6) in portion's pencil (7), is provided between lower part pencil (7) internal lower layer's powder column (6) and flange (33)
Second cushion (31).
2. confined space section gap powder charge detonation flame proof pipe according to claim 1, it is characterised in that: endless metal is swollen
The inner ring of tube expansion (9) is provided with notch (61), and the position that notch (61) is corresponded on inner sleeve (35) and sleeve (34) is provided with straight trough
(53), the 4th mild detonating fuze (44) is installed inside endless metal expansion tube (9), the 4th mild detonating fuze (44) is coiled in ring
In the pipe of shape metal expansion pipe (9) and straight trough (53) is internal, and is in contact with the second mild detonating fuze (14).
3. confined space section gap powder charge detonation flame proof pipe according to claim 2, it is characterised in that: endless metal is swollen
Explosive is filled in the pipe of tube expansion (9).
4. confined space section gap powder charge detonation flame proof pipe according to claim 2, it is characterised in that: endless metal is swollen
The quantity of tube expansion (9) is two.
5. confined space section gap powder charge detonation flame proof pipe according to claim 1, it is characterised in that: the top medicine
Pipe (16) tail end is internally provided with the first metal bulging pipe (41)；First metal bulging pipe (41) is machined with internal screw thread, and upper
External screw thread on connection terminal (11) flange arrangement is connected.
6. confined space section gap powder charge detonation flame proof pipe according to claim 1, it is characterised in that: inner sleeve (35)
Silicon rubber is all made of with outer tube (10) to be made.
7. confined space section gap powder charge detonation flame proof pipe according to claim 1, it is characterised in that: upper layer powder column
(15) and lower layer's powder column (6) is TNT explosive.
8. confined space section gap powder charge detonation flame proof pipe according to claim 1, it is characterised in that: the lower part
Charge unit (24) includes the second pencil (7) and bottom cover (1), and lower layer's powder column (6) is blocked in the second pencil (7) by bottom cover (1)
Portion.
9. using according to claim 1-8 it is one of any described in confined space section gap powder charge detonation flame proof pipe carry out flame proof
Method, which comprises the following steps:
[1] section gap powder charge detonation flame proof pipe is placed in confined space；
[2] upper layer powder column (15) explodes, and causes the second mild detonating fuze (14) detonation；
After the detonation of [3] second mild detonating fuzes (14), cause the first mild detonating fuze (12) detonation, the first metal bulging pipe (41)
Bulging, the first cushion (13) and first metal bulging pipe (41) comprehensive function, carry out buffering barrier to blast wave for the first time.
[4] second mild detonating fuzes (14) cause the 4th mild detonating fuze (44) in cascade endless metal expansion tube (9) and
Explosion filler (45) explosion, inner sleeve (35), outer tube (10), upper connection terminal (11), lower connection terminal (36), second are delayed
Punching pad (31) and (9) comprehensive function of endless metal expansion tube carry out buffering again to blast wave for the first time and obstruct, and prevent lower layer's powder column 6
Induced detonation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602116.5A CN110260737B (en) | 2019-07-05 | 2019-07-05 | Explosion isolation pipe for sectionally and separately charging explosive in closed space and explosion isolation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602116.5A CN110260737B (en) | 2019-07-05 | 2019-07-05 | Explosion isolation pipe for sectionally and separately charging explosive in closed space and explosion isolation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110260737A true CN110260737A (en) | 2019-09-20 |
| CN110260737B CN110260737B (en) | 2023-07-07 |
Family
ID=67924535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910602116.5A Active CN110260737B (en) | 2019-07-05 | 2019-07-05 | Explosion isolation pipe for sectionally and separately charging explosive in closed space and explosion isolation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110260737B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1038822A (en) * | 1950-06-15 | 1953-10-01 | Ici Ltd | Improvements to time blasting devices |
| BE702997A (en) * | 1967-03-17 | 1968-02-23 | ||
| CN102141360A (en) * | 2009-12-30 | 2011-08-03 | 鸣科工业有限公司 | Delay system with high precision |
| CN103759593A (en) * | 2014-01-29 | 2014-04-30 | 中国科学技术大学 | Single-direction detonating door element with delay function and using method thereof |
| CN210570276U (en) * | 2019-07-05 | 2020-05-19 | 中国人民解放军陆军工程大学 | Detonation explosion-proof tube for sectionally and alternately charging closed space |
-
2019
- 2019-07-05 CN CN201910602116.5A patent/CN110260737B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1038822A (en) * | 1950-06-15 | 1953-10-01 | Ici Ltd | Improvements to time blasting devices |
| BE702997A (en) * | 1967-03-17 | 1968-02-23 | ||
| CN102141360A (en) * | 2009-12-30 | 2011-08-03 | 鸣科工业有限公司 | Delay system with high precision |
| CN103759593A (en) * | 2014-01-29 | 2014-04-30 | 中国科学技术大学 | Single-direction detonating door element with delay function and using method thereof |
| CN210570276U (en) * | 2019-07-05 | 2020-05-19 | 中国人民解放军陆军工程大学 | Detonation explosion-proof tube for sectionally and alternately charging closed space |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110260737B (en) | 2023-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU654225B2 (en) | Method and apparatus for disabling detonation system for a downhole explosive assembly | |
| CN105874299B (en) | It is provided with the charge tube of air gap and the rock blasting construction method using this charge tube | |
| US8342095B2 (en) | Self-stemming cartridge | |
| CN210570252U (en) | Multi-directional energy-gathering blasting device for one-step blasting molding and slag throwing of hard rock | |
| CN110671981A (en) | Smooth blasting method for vertical shaft tunneling in high stress environment | |
| CN102967191A (en) | Blasting method for treatment of gob | |
| US10801818B2 (en) | Method and device for micro blasting with reusable blasting rods and electrically ignited cartridges | |
| CN110260742A (en) | Explosion-proof and delayed explosion-propagation device and method for explosive explosion of sectionally spaced explosive charges in closed space | |
| CN210603016U (en) | Explosion-proof and delay explosion-transmitting device for explosive filling in segmented and spaced closed space | |
| CN210570276U (en) | Detonation explosion-proof tube for sectionally and alternately charging closed space | |
| CN110243242A (en) | Blasting device and method for rapid forming and slag throwing of hard rock V-shaped pit body | |
| CN108592726A (en) | A kind of presplit blasting Parameters design for excavation of foundation pit | |
| CN210570269U (en) | Blasting device for rapid forming of V-shaped pits in hard rock | |
| CN110186341A (en) | Blasting device and method for rapid forming of V-shaped pits in hard rock | |
| CN211824100U (en) | Detonator detonation system for mixed use of detonators and detonator arrangement system for tunnel blasting | |
| CN210625489U (en) | Blasting device for rapid forming and slag throwing of hard rock V-shaped pit body | |
| CN110207548A (en) | Multidirectional energy-gathering blasting device and method for one-time blasting molding and slag throwing of hard rock | |
| CN210570267U (en) | One-time hard rock pit forming device for multidirectional energy-gathering water pressure blasting | |
| CN110260737A (en) | Explosion-proof tube and explosion-proof method for sectionally and alternately charging closed space | |
| CN210570270U (en) | Bonnet fryer with rubble is thrown function | |
| CN104897011A (en) | Non-primary hole-by-hole blasting surface detonator and mounting and using method thereof | |
| CN110260733A (en) | Device and method for once forming pit in hard rock by multidirectional energy-gathering water pressure blasting | |
| CN211903943U (en) | Mining boulder blasting device | |
| CN210570268U (en) | Explosion buffer barrier for enclosed space | |
| US7546805B2 (en) | Detonator |
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 |