CN105627842A

CN105627842A - Two-way initiating explosive-free annular energy output detonator

Info

Publication number: CN105627842A
Application number: CN201610031015.3A
Authority: CN
Inventors: 马宏昊; 崔宇; 沈兆武; 洪泳; 杨明
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 2016-01-18
Filing date: 2016-01-18
Publication date: 2016-06-01
Anticipated expiration: 2036-01-18
Also published as: CN105627842B

Abstract

The invention discloses a two-way initiating explosive-free annular energy output detonator. The two-way initiating explosive-free annular energy output detonator comprises a metal pipe shell with an annular energy gathering groove and opened at two ends, two energy input signal channels in the pipe shell, two laser parts and two main charging parts; the two energy input signal channels can be explosion guide pipes, rubber plugs or explosion guide cables or charge input leg wires; and the whole structure is totally and symmetrically filled along the middle of the round pipe. The two-way initiating explosive-free annular energy output detonator can synchronously detonate from two ends, and enhances the detonation initiating reliability; and the two-way initiating explosive-free annular energy output detonator adopts an initiating explosive-free flight piece technology, is safe and reliable, is combined with an annular energy gathering jet principle, and is high in explosion initiating capacity.

Description

A kind of two-way non-priming hoop energy output detonator

Technical field

The invention belongs to explosive technical field, be specifically related to a kind of double end non-priming hoop energy output detonator.

Background technology

Highway excavates, tunnelling, cubic metre of earth explosion, resource exploitation, Urban Blasting all be unable to do without the use of explosive concerning the heavy construction of the national matter of fundamental importance, also it be unable to do without the dependence to explosive simultaneously, it can thus be appreciated that China is very big to explosive demand, particularly detonator make consumption very big, these detonators are appreciable wealth, if able to reduce detonator make consumption, necessarily can save the no small expense of next record.

In a practical situation, due to detonator, to be likely to occur half quick-fried or miss-fire, so the industrial reliability in order to improve big gun hole, often at the even multiple detonator of same parallel hole connection two, to reduce the probability of miso-fire, although system reliability so can be improved, but the consumption that makes but making detonator increases one times fully, herein for this situation, devise a kind of can two directions' inputing hoop energy output detonator, it changes the feature that input one end, one end of tradition detonator exports and mainly utilizes axial energy to export, in conjunction with Mohaupt effect, improve and radially export energy, can reach to input from two ends simultaneously, the radially feature of output. this novel double-end hoop output detonator, it is possible to detonating from two ends simultaneously, while not reducing output of detonator energy, improve the reliability of total system, the half of the detonator of reduction makes consumption.

Currently, someone did double end flame detonator, it adopts flame priming mode of excitation on the one hand, safety is too poor, accident very easily occurs, and it is only, and the energy by high explosive is as output energy, its power will necessarily be substantially reduced compared with conventional detonator, and the double end detonator designed by the present invention adopts non-priming film flying technical security reliable on the one hand, bigger in conjunction with the output of hoop energy-gathering jetting principle energy on the other hand, initiating ability is higher.

Summary of the invention

It is an object of the invention to: provide a kind of can industrially reliable initiation two directions' inputing hoop energy output detonator without burster, it can realize from two directions' inputing excitation energy, improve the reliability of single-shot detonator, simultaneously ingenious utilize hoop Mohaupt effect, improve hoop (radially) output energy, there is capacity usage ratio height, take consumption little, security performance is superior, reliability high.

The present invention is realized by techniques below scheme:

A kind of two-way non-priming hoop energy output detonator, including with hoop troughs for collecting energy both ends open Can, successively be seated in two energy input passages in Can, two excite parts and two main body powder charge parts, two energy input passages can be detonator, rubber stopper or primacord or electric charge input payment to a porter, overall structure is along full symmetric filling in the middle of pipe, energy inputs from the signal input channel at two ends simultaneously, when signal input channel is detonator, detonator is connected together with tube wall by using hollow rubber plug under external force extrudes, two ends detonator input time break, symmetry excites two symmetrical excitation apparatus immediately following detonator rear, excitation apparatus is that non-priming film flying excites interior cap device, excitation apparatus produces the High Speed Flyer symmetrical main charge immediately after that detonates again, main charge crushes cumulative ring shaped slot, produce energy-gathering jetting ring, finally ignite blast hole projectile filling, complete whole initiation process.

Wherein, energy input parts, it is possible to make electricity input or non-electrical output. Non-electrical input can be divided into again detonator input or primacord input, it is possible to is fixed in Can by closing-up machine extruding, can also decide whether as required to use delay element simultaneously, it is possible to adopts line delay element to reach the purpose of design of delay detonator. Parts are excited to adopt non-priming film flying mode of excitation. By exciting medicine and metal inner cap to form, it has to burn rapidly and releases the characteristic of a large amount of high temperature and high pressure gas to excite medicine, here with KCLO₃Mixing (1:1) with RDX is example, the thin wall cylinder-shaped that interior cap is made of metal, and bottom processes presplitting indentation, forms film flying along pre-scoring under gases at high pressure promote.

Wherein, main body powder charge parts can be divided into booster explosive and the two-part multiple charge structure of donor charge, and present ether peace is example, and booster explosive is that the two-stage charge constitution respectively first order is in bulk pacifies very much, and the second level is about 1.2g/cm for press-fiting density³Pacifying very much, donor charge is that (density takes 1.7g/cm for the too peace of compacting³) or RDX.

Wherein, the centre position of the metal circular tube of both ends open is arranged around an appropriate number of cannelure having and being parallel to each other, this groove shape can make taper or semicircle, it is referred to as energy-gathering ring, this groove width on housing periphery is the 1/4-1/5 of Can diameter, the drift angle of tapered cross-section is 60 ��-120 ��, spacing is well width 2��5 times of the axis of adjacent two endless grooves. It is structurally characterized in that and acts on hoop to make explosive energy concentrate, produce high pressure, at a high speed, high temperature and highdensity jet, the energy to improve hoop exports.

Wherein, its detonator can input energy simultaneously from two ends, and utilizes energy-gathering jetting principle, strengthens the lateral output of energy, can decide whether as required to use delay element to reach delayed effect simultaneously.

Operation principle of the present invention is: when energy inputs (as required the need of delay element) from the energy input devices at shell two ends simultaneously, then light and interior cap excites medicine, excite medicine rapid COMBUSTION TO DETONATION TRANSITION in confined space, produce a large amount of gases at high pressure, cap in shearing, make it be intended to crackle generation High Speed Flyer along bottom to hit to the booster explosive in main charge simultaneously, being then impinge upon detonating, the first order is in bulk pacifies very much, too peace in bulk will have the enough energy excitation second level to press-fit booster explosive after detonating, the main charge that now recurrence detonation pressure is real, can be crushed a lot of energy-gathering ring in the process, produce a plurality of high-speed and high-temperature jet along radially (hoop), blast hole projectile filling around Impact Initiation, reach the purpose in reliable initiation big gun hole.

Present invention advantage compared with prior art is in that: the double end non-priming hoop cumulative output detonator of the present invention, can by using single-shot detonator to reach the equal reliability of two old-fashioned detonators of parallel connection, while not reducing output of detonator energy, the detonator reducing half makes consumption, improve big gun hole reliability, save writing expense, and in conjunction with hoop cumulative principle, strengthen lateral fan-out capability, improve the reliability of blasting cap initiation.

Accompanying drawing explanation

Fig. 1 is the double end non-priming hoop cumulative output detonator appearance schematic diagram of the present invention;

Fig. 2 is Fig. 1 double end detonator energy-gathering ring partial enlarged drawing;

The double end non-priming hoop cumulative output detonator detailed construction that Fig. 3 is the present invention cuts open figure (wireless delay element);

The double end non-priming hoop cumulative output detonator detailed construction with extension function that Fig. 4 is the present invention cuts open figure (wired delay element).

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.

Embodiment 1

Referring to Fig. 1 and Fig. 3, select long 80mm, the aluminum hull of external diameter 6.8mm wall thickness 0.6mm is as housing (label 2), on housing, from being sequentially distributed basal diameter 1.2mm to both sides, the conical socket ring (label 10) of high about 0.75, adjacent conical ring spacing 3mm, altogether 11 conical rings, first load main charge compacting in center symmetry and pacify very much 0.42g (label, 7, density 1.7g/cm³) or hexogen, then it is respectively symmetrically the density 1.2g/cm of loading³Pacifying very much each 0.18g (label 6), then symmetrical loading in bulk pacify very much each 0.3g (label 5, density is about 0.88g/cm³), then interior cap (label 8) is to positioning step place (label 9) beyond the Great Wall, and (label 4, composition is KCLO to be then charged into exciting medicine₃: RDX mass ratio is 1:1) 0.1g, finally puts at two ends with the detonator of rubber stopper tight, then tightly extrudes with closing-up machine and be connected on housing. Use this device, test of simultaneously detonating, it has been found that thereunder steel plate washer gets 11 row's indentures from two ends, and the indenture degree of depth is gradually increased from outside to inside, obvious deeper than other at middle 3 place's indentures, illustrates that this device simultaneously from two ends reliable initiation, and can produce enough energy output.

Embodiment 2

Referring to Fig. 1 and Fig. 4, select the copper shell of as above size as housing, first load main charge compacting in center symmetry and pacify very much 0.42g or hexogen, be then respectively symmetrically the density 1.2g/cm of loading³Pacify very much each 0.18g, then symmetrical loading is in bulk pacifies very much each 0.3g, then beyond the Great Wall in cap to positioning step place, it is then charged into exciting medicine 0.05g, fill in the lead line delay element of one end 4mm length, it is connected on shell wall with closing-up machine extruding, finally puts at two ends with the detonator of rubber stopper tight, then tightly extrude with closing-up machine and be connected on housing. Use this device, test of simultaneously detonating from two ends, it has been found that thereunder steel plate washer gets 11 row's indentures, and the indenture degree of depth is gradually increased from outside to inside, obvious deeper than other at middle 3 place's indentures. Illustrate that device simultaneously from two ends reliable initiation, and can reach delayed effect when adding delay element, and do not affect the output of its energy.

Embodiment 3

Referring to Fig. 1 and Fig. 3, size is as above, adopt red copper shell, emulsion (the industrial emulsion substrate of 5% glass microsphere sensitization) medicated bag is used to wrap up this double end detonator, double end is simultaneously entered signal and detonates, test 10 times, all can detonate smoothly, illustrate that its initiating ability meets industrial requirement of detonating.

Claims

1. two-way non-priming hoop energy output detonator, it is characterised in that: include the Can with hoop troughs for collecting energy both ends open, two the energy input passages being seated in Can successively, two excite parts and two main body powder charge parts, two energy input passages can be detonator, rubber stopper or primacord or electric charge input payment to a porter, overall structure is along full symmetric filling in the middle of pipe, energy inputs from the signal input channel at two ends simultaneously, when signal input channel is detonator, detonator is connected together with tube wall by using hollow rubber plug under external force extrudes, two ends detonator input time break, symmetry excites two symmetrical excitation apparatus immediately following detonator rear, excitation apparatus is that non-priming film flying excites interior cap device, excitation apparatus produces the High Speed Flyer symmetrical main charge immediately after that detonates again, main charge crushes cumulative ring shaped slot, produce energy-gathering jetting ring, finally ignite blast hole projectile filling, complete whole initiation process.

2. two-way non-priming hoop energy according to claim 1 output detonator, it is characterized in that: energy input parts, electricity consumption input or non-electrical input can be made, non-electrical input can be divided into again detonator input or primacord input, closing-up machine extruding can be passed through and be fixed in Can, can also decide whether as required to use delay element simultaneously, line delay element can be adopted to reach the purpose of design of delay detonator, parts are excited to adopt non-priming film flying mode of excitation, formed by exciting medicine and metal inner cap, it has to burn rapidly and releases the characteristic of a large amount of high temperature and high pressure gas to excite medicine, the thin wall cylinder-shaped that interior cap is made of metal, bottom processes presplitting indentation, film flying is formed along pre-scoring under gases at high pressure promote.

3. two-way non-priming hoop energy according to claim 1 output detonator, it is characterized in that: main body powder charge parts can be divided into booster explosive and the two-part multiple charge structure of donor charge, booster explosive is that the two-stage charge constitution respectively first order is in bulk pacifies very much, and the second level is about 1.2g/cm for press-fiting density³Pacifying very much, donor charge is the density 1.7g/cm of compacting³Too peace or RDX.

4. two-way non-priming hoop energy according to claim 1 output detonator, it is characterized in that: and the centre position of the Can of both ends open is arranged around an appropriate number of cannelure having and being parallel to each other, the groove shape of this cannelure can make taper or semicircle, it is referred to as energy-gathering ring, this groove width on housing periphery is the 1/4-1/5 of Can diameter, the drift angle of tapered cross-section is 60 ��-120 ��, spacing is well width 2��5 times of the axis of adjacent two endless grooves.

5. two-way non-priming hoop energy according to claim 1 output detonator, it is characterized in that: its detonator can input energy simultaneously from two ends, and utilize energy-gathering jetting principle, strengthen the lateral output of energy, can decide whether as required to use delay element to reach delayed effect simultaneously.