CN110487135A - Permitted Detonator for Coal Mining electric detonator - Google Patents

Permitted Detonator for Coal Mining electric detonator Download PDF

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Publication number
CN110487135A
CN110487135A CN201910846220.9A CN201910846220A CN110487135A CN 110487135 A CN110487135 A CN 110487135A CN 201910846220 A CN201910846220 A CN 201910846220A CN 110487135 A CN110487135 A CN 110487135A
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CN
China
Prior art keywords
detonator
electronic
chip
priming
electronic chip
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Pending
Application number
CN201910846220.9A
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Chinese (zh)
Inventor
马宏昊
王奕鑫
刘锐
沈兆武
陈继平
姚象洋
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University of Science and Technology of China USTC
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University of Science and Technology of China USTC
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by University of Science and Technology of China USTC filed Critical University of Science and Technology of China USTC
Priority to CN201910846220.9A priority Critical patent/CN110487135A/en
Publication of CN110487135A publication Critical patent/CN110487135A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/12Primers; Detonators electric

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

The invention discloses a kind of Permitted Detonator for Coal Mining electric detonator, including payment to a porter, electronic chip, etc. time delay periods baffling device, basal detonator;Electronic chip part is consistent with industrial electronic detonator, is reached by electronic counting and is precisely controlled the time of delaying;Equal time delay periods baffling device is the delay grain of equal length same type, and extension duration is arranged less than 130 milliseconds;Basal detonator is flying-piece auget without detonating agent, is also possible to priming detonator, and detonator base charge is the high explosive for adding blast reducer, it is ensured that not actuation gas.Meanwhile the detonating technique of this Permitted Detonator for Coal Mining electric detonator is also disclosed, total time of delaying is controlled by design electric detonator chip counter less than 130 milliseconds, avoids gas and dust explosion.Permitted Detonator for Coal Mining electric detonator can not only reach the control of accurate extension time of industrial electronic detonator, avoid gas dust from exploding, also can solve nearly blasthole and miss-fire problem.

Description

Permitted Detonator for Coal Mining electric detonator
Technical field
The invention belongs to electric detonator and its blasting technique fields, and in particular to a kind of Permitted Detonator for Coal Mining electric detonator.
Background technique
Industrial electronic detonator under the joint efforts of multidisciplinary expert at home and abroad, achieves significant progress in recent years, special The scientist and engineers and technicians for not being China achieve significant achievement by extremely hard and bitter work, portion at home Provinces or municipalities, which popularize in an all-round way, to be used.The advantages of electric detonator, is it is obvious that convenient for NM network management and detection, hardly by extraneous electric energy It influences, the random length delay powder control compared to electric cap is delayed the time, and electric detonator controls delay time by electronic counting It is more accurate, the management for public safety of being more convenient for.But industrial electronic detonator encounters two serious technologies in popularization and use Problem, the problem first is that the delay detonation of short distance blasthole is miss-fired, second is that application problem of the electric detonator in downhole coal mine explosion is also It could not solve very well.In the lesser explosion of pitch of holes, the electronic chip for lagging the electric detonator of detonation will receive the big gun that first detonates The influence of hole impact, may make discharge capacity fail, to cause higher rate of miss-firing;In underground blasting, space is limited, hole Spacing is smaller, and closely delay detonation will be led to the problem of between close blasthole and is miss-fired.Both of these problems could not well solve, The serious hindrance that industrial electronic detonator popularizes application in an all-round way is constituted.
Current downhole coal mine explosion both domestic and external, is still detonated using electric cap, usually in detonator shell material, wall The drawbacks of more research of progress in terms of thick, delay element and high explosive ingredient, electric cap, still exists, i.e., delays time to control is not smart Really, explosion section may be made to fall flat, increases workload, while coal mine type commercial electric detonator watt may also be caused This safety is unqualified.
Summary of the invention
The drawbacks of for existing electric detonator technical deficiency and electric cap, the present invention is only in the base of existing electric detonator On plinth, proposes Permitted Detonator for Coal Mining electric detonator and resist the key technology of quick-fried type electric detonator, which is not only suitable for film flying Formula nonpriming material detonator is also applied for priming detonator, can solve the problems, such as that allowed for use in coal mines electric detonator and nearly blasthole miss-fire, together When can be to avoid gas and dust explosion.
There are two key technologies of the invention, first is that filling the time delay periods such as the preceding paragraph between Ignition chip and basal detonator Baffling device;Second is that by the extension time restriction of electronic chip within 130 milliseconds.
Wherein technology is first is that main and most important, in order to solve the problems, such as to miss-fire.Equal time delay periods barrier dress Set the delay grain of usually fixed length.Each detonator detonates after will extending an isochronic interval after Ignition chip effect, works as network When the other blasting cap detonation of middle first segment, the other chip of back segment is lighted a fire respectively in advance, will not be generated again since the other chip of back segment is rushed It hits influence failure and leads to the problem of miss-firing.Baffling device, which is selected, is formulated excellent delay grain, due to the fixed length that is delayed, can do It is very small to error.Both blasting circuit accurately Dark Ignition had been ensure that, while the damage for also solving nearly blasthole chip is miss-fired Problem.
Can connect after baffling device priming or excitation medicine, it is identical as traditional detonator, by priming or film flying come Ignite high explosive.
The effect of technology two is to avoid igniting the gas and coal dust in coal mine.National Specification Enterprise information Total time of delaying is not more than 130 milliseconds, and can efficiently controlling gas in first quick-fried blasthole coal seam and coal dust in this way, there are no complete In air, the other blasthole of most back segment, which has also been lighted a fire, to be finished for throwing, is avoided rear quick-fried blasthole and is ignited the bottle coal that first quick-fried blasthole generates Dirt.Electric detonator chip longest delays the time less than or equal to 130 milliseconds in the present invention, while electronic detonator initiator selection is anti- The initiator of quick-fried type.Total extension time is fundamentally limited, the generation of the gas and dust explosion accident in coal mine is avoided.
The technical solution adopted by the present invention are as follows: a kind of Permitted Detonator for Coal Mining fling chip non-priming electric detonator, including payment to a porter, Electronic chip, igniter head, interior cap wait time delay periods baffling device, excite medicine, film flying and high explosive, payment to a porter and electronic detonator initiating Device connection;Electronic chip is the electronic chip of industrial electronic detonator in electric detonator;When delay can be accurately arranged in electronic chip Between, longest delays the time less than or equal to 130 milliseconds;Igniter head lights equal time delay periods baffling device in electric detonator;Interior cap top It is followed successively by equal time delay periods baffling device, excitation medicine, interior cap is connected with film flying;Excitation medicine can burn rapidly when being ignited;In making Film flying is formed on cap bottom;Film flying hits high explosive, forms detonation.
A kind of Permitted Detonator for Coal Mining priming electric detonator, including payment to a porter, electronic chip, igniter head wait time delay periods barrier dress It sets, priming and high explosive, payment to a porter are connect with electronic detonator initiator;Electronic chip is industrial electronic detonator in electric detonator Electronic chip;Delay time can be accurately arranged in electronic chip, and longest delays the time less than or equal to 130 milliseconds;In electric detonator Igniter head lights equal time delay periods baffling device;Then priming is lighted, priming refires high explosive, forms detonation.
Permitted Detonator for Coal Mining electric detonator provided by the invention, can be applied to nearly shot hole blasting and downhole coal mine explosion, not only Miss-firing for nearly blasthole can be prevented, while the extension time can be made to reach using electronic chip counting and accurately controlled.In underground In colliery blasting application, the total delay time of electric detonator chip is controlled within 130 milliseconds, gas and coal dust can also be avoided The hidden danger of detonation.The present invention can make greater efforts to promote the popularization and application of electric detonator, respond the policy of country, promote explosion industry Standardization and safe.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of Permitted Detonator for Coal Mining of embodiment of the present invention fling chip non-priming electric detonator;
Fig. 2 is the structural schematic diagram of Permitted Detonator for Coal Mining of embodiment of the present invention priming electric detonator.
Wherein, in Fig. 1-Fig. 2: 1 is payment to a porter, and 2 be electronic chip, and 3 be igniter head, and 4 be interior cap, and 5 be equal time delay periods barrier Device, 6 be excitation medicine, and 7 be film flying, and 8 be high explosive, and 9 be priming.
Specific embodiment
Below with reference to embodiment, the present invention will be further described
The embodiment of the invention discloses a kind of Permitted Detonator for Coal Mining electric detonators, on the basis of traditional industrial electronic detonator It improves, makes it is suitable for nearly shot hole blasting and downhole coal mine explosion, can be solved close under the premise of guaranteeing precisely to delay Blasthole is miss-fired problem.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Present embodiments provide a kind of Permitted Detonator for Coal Mining fling chip non-priming electric detonator, including payment to a porter 1, electronic chip 2, igniter head 3, interior cap 4 waits time delay periods baffling device 5, excites medicine 6, film flying 7, high explosive 8.Payment to a porter 1 and electronic detonator initiator Connection;Electronic chip 2 is the electronic chip of industrial electronic detonator;Delay time can be accurately arranged in electronic chip 2;Igniter head 3 Light equal time delay periods baffling device 5;Interior cap 4 is connected with film flying 7;Excitation medicine 6 can burn rapidly when being ignited;Make interior 4 bottom of cap Portion forms film flying 7;Film flying 7 hits high explosive 8, forms detonation.
Wherein, the electronic detonator initiator that payment to a porter 1 connects is the electronic detonator initiator of explosion-proof type;Pass through electronic chip 2 Set the different extension times, most back segment other extension time is 130 milliseconds;Equal time delay periods baffling device 5 is that formula is excellent, misses The lesser delay grain of difference, time of delaying are selected as 100 milliseconds;Excitation medicine 6 is RDX and KClO3Or KClO4The granulation of confection Product;8 base charge of high explosive is the high explosive for adding blast reducer, it is ensured that not actuation gas.
High explosive 8 is divided for different densities powder charge three times, loading detonator bottom;It is then charged into interior cap 4, interior cap 4 is fixed, Be sequentially loaded into excitation medicine 6, etc. time delay periods baffling device 5 and electronic chip 2, detonator mouth be packed into rubber stopper carry out bayonet fix, will Payment to a porter 1 is connected to electronic detonator initiator, sets 2 each sections of other ignition delay times of electronic chip, ultimately forms allowed for use in coal mines Type fling chip non-priming electric detonator.
Embodiment 2
Present embodiments provide a kind of Permitted Detonator for Coal Mining priming electric detonator, including payment to a porter 1, electronic chip 2, igniter head 3, wait time delay periods baffling device 5, priming 9, high explosive 8.Payment to a porter 1 is connect with electronic detonator initiator;Electronic chip 2 is industry The electronic chip 2 of electric detonator;Delay time can be accurately arranged in electronic chip 2;Igniter head 3 lights equal time delay periods baffling device 5;Then priming 9 is lighted, priming 9 refires high explosive 8, forms detonation.
Wherein, the electronic detonator initiator that payment to a porter 1 connects is the electronic detonator initiator of explosion-proof type;Pass through electronic chip 2 Set the different extension times, most back segment other extension time is 130 milliseconds;Equal time delay periods baffling device 5 is that formula is excellent, misses The lesser delay grain of difference, time of delaying are selected as 100 milliseconds;High explosive 8 is the high explosive for adding blast reducer, it is ensured that is not ignited Gas.
High explosive 8 is divided for different densities powder charge twice, loading detonator bottom;It is then charged into priming 9, whens being reloaded into equal Extension baffling device 5, it is fixed, it is then charged into electronic chip 2, detonator mouth is packed into rubber stopper progress bayonet and fixes, payment to a porter 1 is connected To electronic detonator initiator, 2 each sections of other ignition delay times of electronic chip are set, ultimately form Permitted Detonator for Coal Mining priming electricity Sub- detonator.

Claims (2)

1. a kind of Permitted Detonator for Coal Mining fling chip non-priming electric detonator, it is characterised in that: including payment to a porter (1), electronic chip (2), igniter head (3), interior cap (4), are waited time delay periods baffling device (5), are excited medicine (6), film flying (7) and high explosive (8), payment to a porter (1) it is connect with electronic detonator initiator;Electronic chip (2) is the electronic chip (2) of industrial electronic detonator in electric detonator;Electronics Delay time can be accurately arranged in chip (2), and longest delays the time less than or equal to 130 milliseconds;Igniter head (3) point in electric detonator The time delay periods baffling devices (5) such as combustion;Interior cap (4) top is followed successively by equal time delay periods baffling device (5), excitation medicine (6), interior cap (4) It is connected with film flying (7);Excitation medicine (6) can burn rapidly when being ignited;Interior cap (4) bottom is set to form film flying (7);Film flying (7) It hits high explosive (8), forms detonation.
2. a kind of Permitted Detonator for Coal Mining priming electric detonator, it is characterised in that: including payment to a porter (1), electronic chip (2), igniter head (3), it waits time delay periods baffling device (5), priming (9) and high explosive (8), payment to a porter (1) are connect with electronic detonator initiator;Electronics Electronic chip (2) is the electronic chip (2) of industrial electronic detonator in detonator;Delay time can be accurately arranged in electronic chip (2), Longest delays the time less than or equal to 130 milliseconds;Igniter head (3) lights equal time delay periods baffling device (5) in electric detonator;Then point It fires priming (9), priming (9) refires high explosive (8), forms detonation.
CN201910846220.9A 2019-09-09 2019-09-09 Permitted Detonator for Coal Mining electric detonator Pending CN110487135A (en)

Priority Applications (1)

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CN201910846220.9A CN110487135A (en) 2019-09-09 2019-09-09 Permitted Detonator for Coal Mining electric detonator

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Application Number Priority Date Filing Date Title
CN201910846220.9A CN110487135A (en) 2019-09-09 2019-09-09 Permitted Detonator for Coal Mining electric detonator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111623676A (en) * 2020-06-05 2020-09-04 无锡盛景电子科技有限公司 Coal mine allowable delay combined detonator
CN113028916A (en) * 2021-01-12 2021-06-25 融硅思创(北京)科技有限公司 Digital electronic detonator allowed for coal mine and chip and electronic module thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032234A (en) * 1987-09-22 1989-04-05 淮南矿业学院 Simple flying-piece auget without detonating agent
CN207556376U (en) * 2017-09-30 2018-06-29 中国科学技术大学 A kind of electronics flying plate detonator
CN109780949A (en) * 2019-03-13 2019-05-21 山东圣世达化工有限责任公司 The industrial digital electric detonator and its production method of customization
CN110044224A (en) * 2019-03-28 2019-07-23 陈默 A kind of electric detonator and its initiation system of no ignition capacitor
CN209166247U (en) * 2018-12-04 2019-07-26 张锐 A kind of physics delay element digital primer of Anti-amyloid-β antibody
CN110186330A (en) * 2019-06-03 2019-08-30 广西金建华民用爆破器材有限公司 A kind of electronic ignition delay detonator
CN210862407U (en) * 2019-09-09 2020-06-26 中国科学技术大学 Allowable electronic detonator for coal mine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032234A (en) * 1987-09-22 1989-04-05 淮南矿业学院 Simple flying-piece auget without detonating agent
CN207556376U (en) * 2017-09-30 2018-06-29 中国科学技术大学 A kind of electronics flying plate detonator
CN209166247U (en) * 2018-12-04 2019-07-26 张锐 A kind of physics delay element digital primer of Anti-amyloid-β antibody
CN109780949A (en) * 2019-03-13 2019-05-21 山东圣世达化工有限责任公司 The industrial digital electric detonator and its production method of customization
CN110044224A (en) * 2019-03-28 2019-07-23 陈默 A kind of electric detonator and its initiation system of no ignition capacitor
CN110186330A (en) * 2019-06-03 2019-08-30 广西金建华民用爆破器材有限公司 A kind of electronic ignition delay detonator
CN210862407U (en) * 2019-09-09 2020-06-26 中国科学技术大学 Allowable electronic detonator for coal mine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111623676A (en) * 2020-06-05 2020-09-04 无锡盛景电子科技有限公司 Coal mine allowable delay combined detonator
CN113028916A (en) * 2021-01-12 2021-06-25 融硅思创(北京)科技有限公司 Digital electronic detonator allowed for coal mine and chip and electronic module thereof

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