CN109813188B - Safe electronic ignition detonating piece and safe electronic ignition detonating detonator - Google Patents
Safe electronic ignition detonating piece and safe electronic ignition detonating detonator Download PDFInfo
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Abstract
The invention provides a safe electronic ignition primer and a safe electronic ignition primer detonator, comprising an electronic control module, an electric ignition powder head, a plastic column, an outer tube, transitional powder, a primer and an inner tube; the electric ignition powder head is fixedly and electrically connected with the electronic control module, and the outer surfaces of the electric ignition powder head and the electronic control module are wrapped by plastic to form a cylindrical plastic column; the inner tube is internally provided with transition explosive and initiating explosive, the opening end of the inner tube is inwards pressed into the closed end of the outer tube, the transition explosive is filled at the bottom end of the outer tube, and the initiating explosive is filled on the transition explosive; the end face of the closed end of the inner tube is provided with a fire transmission hole; the electronic control module and the electric ignition powder head are sleeved in the outer tube, the plastic column fills the fit gap between the electronic control module and the electric ignition powder head as well as between the electric ignition powder head and the outer tube, the electric ignition powder head is opposite to the inner tube fire transmission hole, and the electronic control module accurately controls the ignition and delay time of the electric ignition powder head. The invention can improve the safety of the production, transportation and storage processes of the basic detonator.
Description
Technical Field
The invention relates to the technical field of civil blasting equipment, in particular to a safe electronic ignition detonating member and a safe electronic ignition detonating detonator.
Background
Industrial detonator is widely used civil detonating equipment, the outer layer of the traditional industrial detonator is a detonator shell, main explosive, transitional explosive, initiating explosive and pressure-mounting reinforcing cap are sequentially filled in the detonator shell from bottom to top, and after the explosive is pressed, the igniting piece and the shell are tightly combined to form a specific type explosive filling structure. In the current production and manufacturing process, the high explosive, the transition explosive and the initiating explosive are sequentially filled into a metal tube shell, then a reinforcing cap with a hole in the center is buckled into the tube shell, then the filling is compacted to prepare a basic detonator, then a delay body or an ignition explosive or an electric ignition explosive head or a plastic detonating tube and other ignition parts are filled into the basic detonator according to requirements, and then the ignition parts and the outer tube shell are clamped and matched together to obtain the finished industrial detonator, including the electric detonator, the electronic detonator and the detonating tube detonator.
At present, in the basic detonator manufacturing process, the most dangerous processing procedures are the primary explosive charging and pressing procedures, and the conventional primary explosive (dinitrodiazophenol (DDNP), lead Azide (LA), trinitroresorcinol lead and lead azide eutectic (DS) and the like) has high sensitivity and great power and high danger in the using process, so that the primary explosive charging procedure of the basic detonator is easy to cause explosion accidents.
In the traditional basic detonator structure, the explosive in the detonator shell is detonated after the primary explosive is detonated, so that the explosion power is high and the damage is serious. Therefore, the production, storage and transportation of the traditional basic detonator are all at great risk.
Secondly, the electronic ignition part used by the current electronic detonator is formed by connecting an electronic control module with an ignition powder capable of being electrified for ignition. The electronic ignition member needs to be assembled inside the detonator shell and is subjected to a series of destructive actions such as strong vibration, induced electric field, electromagnetic pulse and the like on an explosion site, so that the electronic ignition member needs to be mechanically reinforced and the anti-interference electric performance is enhanced.
Disclosure of Invention
In view of the above, the invention provides a safe electronic ignition primer and a safe electronic ignition primer detonator, which can improve the safety of the production, transportation and storage process of the basic detonator.
The technical scheme adopted by the invention is as follows:
A safe electronic ignition primer, which comprises an electronic control module, an electric ignition powder head, a plastic column, an outer tube, transitional powder, an initiating powder and an inner tube;
The electric ignition powder head is fixedly and electrically connected with the electronic control module, and the outer surfaces of the electric ignition powder head and the electronic control module are wrapped by plastic to form a cylindrical plastic column; the inner tube is internally provided with transition explosive and initiating explosive, the opening end of the inner tube is inwards pressed into the closed end of the outer tube, the transition explosive is filled at the bottom end of the outer tube, and the initiating explosive is filled on the transition explosive; the end face of the closed end of the inner tube is provided with a fire transmission hole;
the electronic control module and the electric ignition powder head are sleeved in the outer tube, the plastic column fills up the fit clearance between the electronic control module and the electric ignition powder head as well as between the electric ignition powder head and the outer tube, the electric ignition powder head is opposite to the inner tube fire transmission hole, and the electronic control module accurately controls the ignition and delay time of the electric ignition powder head.
Further, the electric ignition powder head is prepared from mixed ignition powder prepared by a mechanical mixing method or a chemical coprecipitation method through potassium picrate and potassium perchlorate.
Further, the outer tube is a hollow metal round tube with one end open, the end wall thickness of the back cover is thinner than the wall thickness of the open end, the thickness of the back cover is controlled to be between 0.2 and 0.5 mm within the length range of 5 to 30 mm inwards along the axis direction of the open end, and the thickness of the back cover is controlled to be between 0.1 and 0.3mm within the length range of 5 to 30 mm inwards along the axis direction of the closed end.
A safe electronic ignition primer detonator, the detonator comprising a wire assembly, a safe electronic ignition primer and a basic detonator;
The safe electronic ignition detonating member is sleeved in the basic detonator, the safe electronic ignition detonating member is packaged through a wire assembly, and the wire assembly is used for realizing electric signal communication between the safe electronic ignition detonating member and the detonator, so that the safe electronic ignition detonating member can accurately ignite, delay and ignite the detonating agent.
Further, the safe electronic ignition initiating piece comprises an electronic control module, an electric ignition powder head, a plastic column, an outer tube, transitional powder, initiating powder and an inner tube;
The electric ignition powder head is fixedly and electrically connected with the electronic control module, and the outer surfaces of the electric ignition powder head and the electronic control module are wrapped by plastic to form a cylindrical plastic column; the inner tube is internally provided with transition explosive and initiating explosive, the opening end of the inner tube is inwards pressed into the closed end of the outer tube, the transition explosive is filled at the bottom end of the outer tube, and the initiating explosive is filled on the transition explosive; the end face of the closed end of the inner tube is provided with a fire transmission hole;
the electronic control module and the electric ignition powder head are sleeved in the outer tube, the plastic column fills up the fit clearance between the electronic control module and the electric ignition powder head as well as between the electric ignition powder head and the outer tube, the electric ignition powder head is opposite to the inner tube fire transmission hole, and the electronic control module accurately controls the ignition and delay time of the electric ignition powder head.
Further, the thickness of the metal shell of the basic detonator is controlled between 0.3 mm and 0.5 mm in the length range of 20 mm to 35 mm inwards along the axial direction at the closed end; the thickness is controlled to be between 0.2 mm and 0.4 mm in the axial direction inward in the length range of 15 mm to 90 mm at the open end.
Furthermore, the initiating explosive adopts a carbohydrazide perchlorate metal complex initiating explosive, or an amine perchlorate salt initiating explosive, or a mixed initiating explosive of the mixture of the sodium and the potassium.
Further, the wire assembly comprises a foot wire, a plastic plug and a junction box; and one end of the foot wire is electrically connected with the junction box, the other end of the foot wire is fixedly connected with the plastic plug, and the foot wire is electrically connected with the electronic control module through a wire core which is arranged outside the inner end of the plastic plug and is used for transmitting communication information, control information and detonation electric energy.
The beneficial effects are that:
1. The invention separates the high explosive and the initiating explosive in the traditional basic detonator into two parts instead of being pressed in the detonator shell together, realizes that only the high explosive exists in the basic detonator, improves the safety of the basic detonator, and the initiating explosive part is assembled into the independent safe electronic ignition initiating piece, the charging structure of the safe electronic ignition initiating piece ensures that the explosion risk is not generated in the independent state, and the explosive can be transported independently, thereby solving the safety problems in the production and assembly of the basic detonator, the transportation and the storage of semi-finished products and parts;
Meanwhile, in the safe electronic ignition detonating detonator structure, the electronic control module is used for replacing the traditional chemical delay bodies (lead delay bodies, inner tube delay bodies and the like), so that the upper limit and the precision of the delay time of the industrial detonator are improved, the stability of the product quality is improved, and the electronic ignition detonating piece can be prevented from being accidentally or illegally ignited to detonate by utilizing the password control function of the electronic control module, so that the safety of the safe electronic ignition detonating piece and the safe electronic ignition detonating detonator in the transportation or assembly process is improved;
Through the intensive production of the intrinsically safe electronic ignition detonating element, the detonating element is distributed to customers and enters the whole industry for circulation, the repeated construction of an initiating explosive production line is avoided, the serious problem of the pollution of the initiating explosive production wastewater is eliminated, the management difficulty of the scattered storage of the initiating explosive is reduced, and the green environment-friendly production of the industrial detonator is realized.
2. The safe electronic ignition detonating member of the invention ensures that the electronic ignition detonating member cannot explode or burn to turn detonation under independent conditions by utilizing the novel detonating agent with the pressure control switch effect and the safe charging structure thereof, thereby realizing the production, transportation and use safety of the electronic ignition detonating member. When the safe electronic ignition detonating member is assembled into an industrial detonator according to the detonator structure of the invention, the industrial detonator with the structure can be detonated according to legal and normal operation procedures to finish detonation to detonation, so that the main high explosive in the basic detonator is detonated, and the normal and reliable detonation of the detonator is realized.
3. The invention improves the integral mechanical strength of the electronic ignition piece by sealing the electronic ignition module, protects the electric ignition powder head and the electronic control module from external spark, flame and mechanical stimulus, and improves the safety of the electric ignition powder head and the electronic control module; in addition, the glue sealed electronic ignition piece is reloaded into the outer tube of the detonation module, and as the outer tube adopts the metal tube shell, the full-structure metal cover sealing of the electronic ignition module in the detonation module is realized, the metal tube shell has strong protection and shielding on static electricity, induction electricity, communication electric signals and electromagnetic waves which are induced by the outside, the electronic control module is protected from being influenced by the interference of the outside electric signals in the use process, the usability of the electronic control module is not influenced, the electronic detonator can be ensured to be applied to tunnel, foundation pile and small-section engineering blasting, and the stability and reliability of the electronic ignition module are further improved.
4. The wall thickness of the outer tube can ensure that when the detonation module is ignited independently, the thin wall section of the outer tube is broken and decompressed, so that the combustion to detonation can not be realized, and the safety is ensured; meanwhile, after the electronic control module is arranged in the outer tube, the external electromagnetic field can be shielded, and the stability and the reliability of the electronic control module are maintained.
5. The ignition powder adopted by the electric ignition powder head is insensitive ignition powder, so that accidental or illegal ignition can be prevented, and the safety of the safe electronic ignition initiating piece and the safe electronic ignition initiating detonator in the transportation or assembly process is further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the detonator of the present invention;
FIG. 2 is a cross-sectional view of detonator A-A;
FIG. 3 is a cross-sectional view in the direction of a safe electronic ignition primer A-A;
fig. 4 is a cross-sectional view of the base detonator A-A.
The device comprises a 1-electronic ignition module, a 101-electronic control module, a 102-electric ignition powder head, a 103-plastic column, a 2-detonation module, a 201-outer tube, a 202-transitional powder, a 203-initiating powder, a 204-inner tube, a 3-wire assembly, a 301-leg wire, a 302-plastic plug, a 303-junction box, a 4-basic detonator, a 401-metal tube shell, a 402-primary high explosive, a 403-secondary high explosive and a 404-tertiary high explosive.
Detailed Description
The invention will now be described in detail by way of example with reference to the accompanying drawings.
The embodiment provides a safe electronic ignition detonating primer, as shown in fig. 1 and 2, which comprises a wire assembly 3, a safe electronic ignition detonating element and a basic detonator 4.
As shown in fig. 3, the safe electronic ignition primer is composed of an electronic ignition module 1 and a primer module 2.
The electronic ignition module 1 comprises an electronic control module 101, an electric ignition powder head 102 and a plastic column 103; the electronic ignition module 1 accurately controls the ignition delay time of the electric ignition powder head 102, and can reliably ignite the powder charge in the initiation module 2 after ignition.
The electronic control module 101 has a time control function, a password verification function and a communication function with other devices, and is a microelectronic device composed of a capacitor device for storing electric energy, a controllable switch for outputting electric energy and the like, and is used for replacing a chemical delay body to realize a delay function, verifying a detonation password and preventing illegal firing and detonation.
The electric igniting powder head 102 is an igniting piece formed by coating an ellipsoidal igniting powder ball with a resistance wire, the igniting powder used is simple substance or mixture which can be decomposed, burned and deflagrated by heat released by current through the resistance wire, and the igniting powder is formed by adopting a microcrystalline potassium picrate and potassium perchlorate mixture prepared by a mechanical mixing method or a chemical coprecipitation method or a specific technological process through drying and mixing.
The electric ignition powder head 102 and the electronic control module 101 are connected into a whole by welding, riveting or crimping.
The plastic column 103 is a cylindrical glue column surrounding, filling and wrapping the electronic control module 101 and the electric ignition powder head 102, the used filling glue is polypropylene glue or normal-temperature cured epoxy resin double-component glue (AB glue), and the glue seal is used for protecting the electric ignition powder head 102, isolating the electric ignition powder head 102 from being contacted with the ambient atmosphere, preventing moisture in the absorption environment from being damped and deteriorated, preventing external sparks, flames, mechanical friction and mechanical impact from directly stimulating the electric ignition powder head 102; meanwhile, the connection reliability of the electric ignition powder head 102 and the electronic control module 101 can be ensured, the overall mechanical strength of the electronic ignition module 1 is improved, electronic elements on the electronic ignition module 1 are prevented from being damaged by vibration, and the powder head part is prevented from being broken by vibration.
The initiating module 2 comprises an outer tube 201, a transitional charge 202, an initiating charge 203 and an inner tube 204; when the initiation module 2 exists independently, the pressure switch effect of the initiating explosive 203 does not have the capability of deflagrating to detonate, and only after the initiation module 2 is assembled with the electronic ignition module 1 and the basic detonator 4, the initiation module has normal initiation capability.
The outer tube 201 is a hollow circular tube with one end being opened, which is punched by cold extrusion or is processed by plastic through injection molding, and is made of metal materials, the maximum outer diameter is 4-10 mm, the length is 5-30 mm, the thickness of the closed end wall of the outer tube 201 is smaller than the wall thickness of the open end, the thickness of the closed end is controlled to be between 0.2 and 0.5 mm in the length range of 5-30 mm inwards in the axial direction of the open end, and the thickness of the closed end is controlled to be between 0.1 and 0.3 mm in the length range of 5-30 mm inwards in the axial direction of the closed end; the special structure can ensure that when the detonation module is ignited independently, the thin-wall section of the outer tube is broken and decompressed, so that the combustion to detonation can not be realized, and the safety is ensured. Meanwhile, after the electronic control module 101 is arranged in the outer tube, the external electromagnetic field can be shielded, and the stability and reliability of the electronic control module 101 are maintained.
The transition medicine 202 is loose-packed thaumatin, the dosage is 50-120 mg, and the transition medicine is filled in the bottommost thin-wall section of the outer tube 201.
The primary explosive 203 is a type of compound or mixture that is capable of being excited by a flame generated by the combustion of the electrically-ignitable agent head 102 to effect a combustion-to-detonation. The method adopts a perchloric acid carbohydrazide metal complex initiating explosive with definite combustion-detonation pressure switching effect, or an ammonium perchlorate initiating explosive, or a mixed initiating explosive of black-doped and/or potassium chlorate, or a mixed initiating explosive of black-doped and/or potassium perchlorate.
The inner tube 204 is a hollow circular tube with an opening at one end, which is manufactured by cold extrusion of metal materials such as aluminum, steel, stainless steel or the like or injection molding of plastics, and the center of the end surface of the closed end is provided with a fire transmission hole for restraining the initiating explosive 203 in the inner tube 204, so as to play a role in restraining and buckling the initiating explosive in the bottom of the outer tube 201; its maximum outer diameter is 3mm to 9.5 mm, the inner diameter of the opening is 2mm to 8.5 mm, and the aperture of the closed end is 0.5 mm to 2.95 mm. The inner tube 204 has a length of 5mm to 25 mm and a thickness of 0.1 mm to 0.3 mm.
The inner tube 204 wraps the transitional explosive 202 and the initiating explosive 203 inside, the opening end of the inner tube 204 is pressed inwards to the closed end of the outer tube 201, the transitional explosive 202 is filled at the bottom end, the initiating explosive 203 is filled on the transitional explosive 202, and the initiating explosive 203 is positioned at the thin wall at the bottom of the closed end of the outer tube 201; the electronic ignition module 1 is sleeved in the outer tube 201, and the plastic column 103 fills the fit gap between the electronic control module 101 and the electric ignition powder head 102 and the outer tube 201, so that the plastic column 103 is reliably and tightly matched with the outer tube 201 to play a role in blocking, and external flames and sparks are prevented from being transmitted to the surface of the primary powder 203, so that accidental ignition is caused. The electric ignition powder head 102 is opposite to the fire transmission hole of the inner tube 204, the electric ignition module 1 accurately controls the ignition delay time of the electric ignition powder head, and the initiating powder 203 and the transitional powder 202 in the initiating module 2 can be ignited after the ignition.
The wire assembly includes a leg wire 301, a plastic plug 302, and a junction box 303; the wire assembly is mainly used for networking connection of an initiating circuit and communication between the electronic ignition module 1 and an initiator;
The foot wire 301 is an armored conductive metal wire with two independent plastic insulating layers covered outside, one end of the armored conductive metal wire is electrically connected with the junction box 303, the plastic plug 302 is injection molded at the other end of the armored conductive metal wire, and the armored conductive metal wire is electrically connected with the electronic control module 1 through a conductive wire core left outside the inner end of the plastic plug 302 and is used for transmitting communication information, control information and detonation electric energy.
The plastic plug 302 is a cylindrical plug which is wrapped and injection-molded at one end of the leg wire, the diameter of the plastic plug 302 is matched with the inner diameter of the metal tube shell 401, and the plastic plug 302 is made of elastic bodies such as plastic or rubber.
The junction box 303 is a plastic connector with metal terminals for networking connection between multiple detonators.
As shown in fig. 4, the basic detonator 4 comprises a metal shell 401, a primary high explosive 402, a secondary high explosive 403 and a tertiary high explosive 404, and the primary high explosive 402, the secondary high explosive 403 and the tertiary high explosive 404 are sequentially filled at the bottom end of the metal shell 401.
The metal tube shell 401 is a hollow metal tube with one end open, which is made of metal materials such as aluminum, steel, stainless steel, etc. through cold extrusion, and the bottom can be stamped with inverted cone-shaped pits; its maximum outer diameter is 6mm to 10mm, and its length is 45 mm to 150 mm; the wall thickness of the metal shell 401 needs to be controlled, and the thickness is controlled to be between 0.3 and 0.5mm within the length range of 20 to 35 mm inwards along the axial direction of the closed end; the thickness of the opening end is controlled to be between 0.2 and 0.4mm within the length range of 15 to 90 mm inwards along the axial direction, so that the tube shell is not broken and decompressed when the tube is normally ignited under the conventional condition, and the reliable realization of combustion and detonation transfer during normal use is ensured;
The primary high explosive 402 is passivated black cable, has high explosive pressing pressure and high explosive loading density, and is pressed at the bottommost part of the metal tube shell 401; the secondary high explosive 403 is passivated black cable gold, has small pressing pressure and low charging density, and is pressed above the primary high explosive 402 in the metal tube shell; the third explosive 404 is crystalline thailand and is loosely mounted in the metal shell 401 above the second explosive 403.
During manufacturing, the electronic control module 101 and the wiring pins of the electric ignition powder head 102 are connected together in a welding mode, the electronic control module and the wiring pins of the electric ignition powder head 102 are put into a mold to be filled with the plastic column 103, and after the plastic column 103 is solidified and formed, the electronic ignition module 1 is obtained after demolding and taking out;
filling the transitional explosive 202 into the bottom end of the outer tube 201 in a triamcinolone manner, filling the initiating explosive 203 into the outer tube 201 above the transitional explosive 202, and pressing the inner tube 203 with the fire transmission hole to obtain the initiating module 2;
Then, the end of the electric ignition powder head 102 of the electronic ignition module 1 is inserted into the outer tube 201 of the detonation module 2, and the clamping opening at the upper end of the outer tube 201 is tightened, so that the detonation module 2 and the electronic ignition module 1 are firmly matched, and a safe electronic ignition detonation piece is prepared;
And finally, the safe detonating member with the wire assembly 3 is inserted into the basic detonator 4 filled with the primary high explosive 402, the secondary high explosive 403 and the tertiary high explosive 404, and the metal tube shell 401 of the basic detonator 4 is tightened with the bayonet of the plastic plug 302 of the wire assembly 3, so that the wire assembly 3 is firmly matched with the basic detonator 4, and an industrial detonator finished product is prepared.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The safe electronic ignition detonating piece is characterized by comprising an electronic control module, an electric ignition powder head, a plastic column, an outer tube, transitional powder, initiating powder and an inner tube;
The electric ignition powder head is fixedly and electrically connected with the electronic control module, and the outer surfaces of the electric ignition powder head and the electronic control module are wrapped by plastic to form a cylindrical plastic column; the inner tube is internally provided with transition explosive and initiating explosive, the opening end of the inner tube is inwards pressed into the closed end of the outer tube, the transition explosive is filled at the bottom end of the outer tube, and the initiating explosive is filled on the transition explosive; the end face of the closed end of the inner tube is provided with a fire transmission hole;
The electronic control module and the electric ignition powder head are sleeved in the outer tube, the plastic column fills up the fit gaps between the electronic control module and the electric ignition powder head as well as between the electric ignition powder head and the outer tube, the electric ignition powder head is opposite to the fire transmission hole of the inner tube, and the electronic control module accurately controls the ignition and delay time of the electric ignition powder head; the outer tube is a hollow metal round tube with one end open, the thickness of the end wall of the back cover is smaller than the thickness of the wall of the open end, the thickness of the end wall of the back cover is controlled to be between 0.2 and 0.5 mm within the length range of 5 to 30 mm inwards along the axis direction of the open end, and the thickness of the end wall of the back cover is controlled to be between 0.1 and 0.3 mm within the length range of 5 to 30 mm inwards along the axis direction of the closed end.
2. The safe electronic ignition primer of claim 1, wherein the electric primer is made of a mixed primer prepared from potassium picrate and potassium perchlorate by a mechanical mixing method or a chemical coprecipitation method.
3. The safe electronic ignition detonating detonator is characterized by comprising a wire assembly, a safe electronic ignition detonating piece and a basic detonator;
the safe electronic ignition detonating member is sleeved in the basic detonator, and is packaged by a wire assembly, and the wire assembly is used for realizing electric signal communication between the safe electronic ignition detonating member and the detonator so as to accurately fire, delay and ignite the detonating agent;
the safe electronic ignition detonating piece comprises an electronic control module, an electric ignition powder head, a plastic column, an outer tube, transitional powder, initiating powder and an inner tube;
The electric ignition powder head is fixedly and electrically connected with the electronic control module, and the outer surfaces of the electric ignition powder head and the electronic control module are wrapped by plastic to form a cylindrical plastic column; the inner tube is internally provided with transition explosive and initiating explosive, the opening end of the inner tube is inwards pressed into the closed end of the outer tube, the transition explosive is filled at the bottom end of the outer tube, and the initiating explosive is filled on the transition explosive; the end face of the closed end of the inner tube is provided with a fire transmission hole;
The electronic control module and the electric ignition powder head are sleeved in the outer tube, the plastic column fills up the fit gaps between the electronic control module and the electric ignition powder head as well as between the electric ignition powder head and the outer tube, the electric ignition powder head is opposite to the fire transmission hole of the inner tube, and the electronic control module accurately controls the ignition and delay time of the electric ignition powder head;
The thickness of the metal tube shell of the basic detonator is controlled between 0.3 mm and 0.5 mm within the length range of 20 mm to 35 mm along the axial direction at the closed end; the thickness is controlled between 0.2 mm and 0.4 mm in the length range of 15 mm to 90 mm inwards along the axial direction at the opening end; the outer tube is a hollow metal round tube with one end open, the thickness of the end wall of the back cover is smaller than the thickness of the wall of the open end, the thickness of the end wall of the back cover is controlled to be between 0.2 and 0.5 mm within the length range of 5 to 30mm inwards along the axis direction of the open end, and the thickness of the end wall of the back cover is controlled to be between 0.1 and 0.3 mm within the length range of 5 to 30mm inwards along the axis direction of the closed end.
4. A safe electronic ignition primer according to claim 3, wherein the primer is a carbohydrazide metal perchlorate complex primer, an amine perchlorate primer, a mixed thioxogen/potassium chlorate primer, a mixed thioxogen/potassium perchlorate primer, or a mixed potassium tai/perchlorate primer.
5. A safe electronic ignition primer of claim 3, wherein said wire assembly comprises a leg wire, a plastic plug, and a junction box;
and one end of the foot wire is electrically connected with the junction box, the other end of the foot wire is fixedly connected with the plastic plug, and the foot wire is electrically connected with the electronic control module through a wire core which is arranged outside the inner end of the plastic plug and is used for transmitting communication information, control information and detonation electric energy.
6. A safe electronic ignition primer according to claim 3, wherein the electric primer is made of a mixed primer prepared by a mechanical mixing method or a chemical coprecipitation method of potassium picrate and potassium perchlorate.
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| CN108507426A (en) * | 2018-04-11 | 2018-09-07 | 陈炜 | A kind of method that detonator speed is quick-fried |
| 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 |
| CN111238318A (en) * | 2020-02-21 | 2020-06-05 | 北京凯米迈克科技有限公司 | A reinforced electronic ignition device and its electronic detonator |
| CN115406315B (en) * | 2022-08-18 | 2024-02-13 | 南京理工大学 | An electronic digital detonator that helps prevent accidental ignition and detonation |
| CN115947642A (en) * | 2022-12-26 | 2023-04-11 | 重庆云铭科技股份有限公司 | A conductive ignition powder structure and its manufacturing method |
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| CN1030405A (en) * | 1987-07-07 | 1989-01-18 | 国营云南燃料一厂 | Send out in non-priming wink and the delay type engineering blasting detonator |
| CN201387295Y (en) * | 2009-03-26 | 2010-01-20 | 唐宇飞 | Nonel electronic delay detonator |
| CN202470917U (en) * | 2011-12-29 | 2012-10-03 | 安徽雷鸣红星化工有限责任公司 | High-safety flyer initiating-explosive-free industrial detonator |
| CN203513524U (en) * | 2013-03-11 | 2014-04-02 | 北京理工大学 | Safety detonator |
| CN203190900U (en) * | 2013-04-03 | 2013-09-11 | 山东圣世达化工有限责任公司 | Explosive-head-free type digital electronic detonator |
| CN204514202U (en) * | 2015-02-15 | 2015-07-29 | 安徽理工大学 | A kind of energy-saving environment-friendly type delay electric detonator |
| CN210036463U (en) * | 2019-02-02 | 2020-02-07 | 北京凯米迈克科技有限公司 | Safe electronic ignition priming part and safe electronic ignition priming detonator |
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| CN109813188A (en) | 2019-05-28 |
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