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684results about "Explosive working-up apparatus" patented technology

Device and process for recycling perchlorate in firework and cracker waste

The invention discloses a device and a process for recycling perchlorate in fireworks and crackers waste, the process comprises the steps of first-stage washing, first-stage solid-liquid separation, concentration, second-stage washing, second-stage solid-liquid separation and crystallization, the separation, recovery and resource utilization of the perchlorate, aluminum powder and other substances in solid waste can be realized, meanwhile, the waste residue is subjected to innocent treatment, and the recycling of the perchlorate in the fireworks and crackers is realized. The pollution to the environment is reduced; and in the crystallization step, a low-temperature evaporation space is divided into a plurality of units, and the negative effects of overhigh evaporation temperature and sudden temperature increase of perchlorate can be effectively avoided in a manner of changing positions of the cells.
Owner:HUNAN HUAKE ENVIRONMENT DETECTION TECH SERVICES CO LTD

Explosive mixing conveying chain device of firework inner barrel filling production line

The utility model provides an explosive mixing conveying chain device for a firework inner barrel filling production line. The device comprises a water tank mechanism and a power mechanism, the water tank mechanism comprises a rack and a water tank fixedly arranged above the rack; the power mechanism comprises a power machine and a conveying chain which are respectively arranged below and above the water tank; a plurality of sliding table trolleys are detachably installed on the conveying chain, the power machine drives the conveying chain to drive the sliding table trolleys to conduct uniform-speed circular motion in the water tank, and the sliding table trolleys sequentially pass through a plurality of medicine mixing mechanisms arranged on the side edge of the water tank at equal intervals. According to the mixed medicine conveying chain device, water can be injected into the water tank, so that medicine powder and other impurities generated in the medicine mixing process fall into the water tank, and fire and explosion caused by medicine naturally are avoided; the power machine drives the conveying chain to drive the sliding table trolley, so that the whole medicine mixing and conveying process is automatic, manual intervention is reduced, the production efficiency and the yield are improved, the occupied area of equipment is small, and efficient production layout can be achieved in a limited site.
Owner:百特(福建)智能装备科技有限公司

Forming device and process for free filling type metal wire embedded solid propellant

The invention discloses a free filling type metal wire embedded solid propellant forming device and process, and belongs to the field of solid propellants, the free filling type metal wire embedded solid propellant forming device comprises a bottom plate, a base, a mold cylinder and a top cover are sequentially arranged on the bottom plate, and a plurality of pressing structures are arranged on the upper portion of the top cover; a solid propellant coating barrel is arranged on the inner wall of the mold barrel; the lower end of the metal wire is fixed on the bottom plate, the upper end of the metal wire is fixed on the first fastener of the fastener mounting block on the top cover, and the first fastener is screwed into the threaded hole, so that the metal wire can be tensioned, and the internal stress of the metal wire can be adjusted by adjusting the expansion amount of the metal wire; according to the invention, the collimation of the metal wire in the propellant is ensured, the proper stress of the metal wire in the slurry casting process is also ensured, the problem that the metal wire is broken due to overlarge stress is avoided, and the technical problem that the yield of the solid propellant is low due to the fact that the metal wire is easy to break in the propellant in the prior art is solved.
Owner:XIAN MODERN CHEM RES INST +1

Explosive granulation system based on nitrogen circulation

The invention discloses an explosive granulation system based on nitrogen circulation, the explosive granulation system comprises an enclosed hood, a granulation main machine, a material receiving device and a conveying device, the output end of the granulation main machine, the material receiving device and the conveying device are all located in the enclosed hood, and an oxygen sensor is arranged in the enclosed hood; an air inlet and an air outlet are formed in the closed cover, the air outlet is sequentially communicated with the first wind power supply device, the condenser, the first heater, the second wind power supply device and the air inlet, an outlet of the nitrogen cylinder is further communicated between the condenser and the first heater, and the air inlet and the air outlet are provided with a first temperature sensor and a second temperature sensor respectively. According to the invention, the nitrogen in the nitrogen cylinder can be heated by the first heater and then supplied into the enclosed hood by the second wind power supply device, so that ethyl acetate in the enclosed hood is absorbed and supplied to the condenser by the first wind power supply device, and the ethyl acetate carried by the nitrogen is condensed and recovered; further, ethyl acetate is removed in the press-fitting explosive granulation process.
Owner:MIANYANG AOPAI TECH CO LTD

Energetic slurry toughening and photocuring 3D printing method

The invention discloses an energetic slurry toughening and photocuring 3D printing method, relates to a preparation method of energetic slurry, and aims to solve the problems that an existing energetic material is poor in mechanical property, poor in toughness and easy to crack; the particles are fast to settle in the light-cured resin, the stability is poor, and the printing precision is poor. The invention develops a photocuring high-energy resin for photopolymerization additive manufacturing. The composition contains a high-energy filler, an acrylate adhesive, whiskers and an inert plasticizer. The material has the characteristics of compatibility, printability and mechanical property, and the possibility of printing increasingly complicated high-energy articles is proved through experiments. The preparation method of the light-cured resin comprises the following steps: adding the low polymer bisphenol A epoxy acrylate and the six-functionality polyurethane acrylate; diluting monomers including 1, 6-hexanediol diacrylate and trimethylolpropane triacrylate; uniformly mixing an auxiliary agent, a thickening agent and a dispersing agent, and magnetically stirring for 30 minutes to obtain the light-cured resin. A preparation method of the energetic slurry comprises the following steps: mixing light-cured resin, whiskers, an inert plasticizer, energetic particles, a photoinitiator and a light absorber, and uniformly stirring to obtain the energetic slurry; after the energetic slurry is used for 3D printing, a sample piece is obtained, the yield reaches 95%-100%, the cost is low, preparation is easy, and the method can be applied to the field of energetic slurry 3D printing.
Owner:HARBIN INST OF TECH

On-site mixed water gel explosive

The invention discloses an on-site mixed water-gel explosive which comprises the following components in percentage by weight: 45-70% of ammonium nitrate; 9%-15% of water; 10-20% of calcium nitrate; 7-20% of liquid fuel; 0-10% of an auxiliary combustible agent; 0.7%-1.0% of a gelling agent; 0.2%-0.5% of an additive; 0.02%-8% of a sensitizing agent; 1-3% of a cross-linking agent; the density range of the explosive is 0.3-1.25 g / cm < 3 >, and the adjusting range is wide; the detonation velocity of the explosive is 2000-4500 m / s, and the explosive is high in matching degree with medium soft rock; the explosive has good water resistance and is suitable for charging of wet holes, water holes and slurry holes; the production raw materials of the explosive do not contain high-energy materials, and the prepared thickening mother liquor and semi-finished products have the characteristics of good stability, long storage life, high transportation safety and high intrinsic safety.
Owner:CHINA GEZHOUBA GRP EXPLOSIVE CO LTD +1

Novel underwater explosive formula and preparation method

The invention provides a novel underwater explosive formula and a preparation method. The novel underwater explosive formula comprises the following components in percentage by mass: 25%-30% of a high-energy explosive matrix, 10%-15% of an underwater stabilizer, 15%-20% of a water-soluble carrier material, 10%-12% of a waterproof coating and 30%-33% of a synergistic material. According to the novel underwater explosive formula and the preparation method, various high-performance materials and an environment-friendly stabilizer are adopted, and the underwater activity and efficiency of the explosive are improved through an innovative preparation process.
Owner:BEIJING INST OF TECH

Emulsifying machine for producing and processing colloidal emulsion explosive

The invention discloses an emulsifying machine for production and processing of colloidal emulsion explosives, and relates to the technical field of production of colloidal emulsion explosives. The device comprises an emulsifying shell, a cylindrical frame is fixedly arranged at the top end of the emulsifying shell, an emulsifying stirring assembly is arranged on one side of the top end of the cylindrical frame, a lifting assembly is arranged on the other side of the top end of the cylindrical frame, an oil film cleaning assembly is arranged on the emulsifying stirring assembly in a sliding mode, and a synchronous scraper assembly is arranged on the oil film cleaning assembly. According to the oil film cleaning device, by arranging the oil film cleaning assembly, in the process that hot water enters a fixing frame through a water inlet pipe by means of an external high-pressure water pump, an impeller and a rotating shaft are pushed to rotate and then enter a rotating frame to be sprayed out of a cleaning spray head, and the rotating frame and the cleaning spray head are driven to rotate synchronously while the rotating shaft rotates; oil films on the inner wall of the emulsifying shell and the outer walls of the fan blades are cleaned by rotationally spraying high-pressure hot water flow, and meanwhile, the cleaning scraper is driven to rotate to synchronously clean jelly on the inner wall of the emulsifying shell.
Owner:STATE OWNED YUNNAN PACKING FACTORY

Printing of energetic materials

The invention is directed to a method for the preparation of an energetic material product such as a propellant or explosive charge or grain. The method includes additive manufacturing with co-extrusion of at least two materials to form a multi-layered filament and layer-by-layer deposition of the multi-layered filament. The multi-layered filament has a first material layer and a second material layer and at least one layer includes an energetic material. In another aspect, the invention is directed to an apparatus for use in this method, the apparatus comprising a co-extrusion nozzle.
Owner:NEDERLANDSE ORG VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO

Preparation method of modified nano silicon powder wrapped by polymer

The invention provides a preparation method of modified nano silicon powder wrapped by a polymer, which comprises the following steps: dissolving a polymer PVDF (Polyvinylidene Fluoride) in an organic solvent N-dimethylformamide DMF (Dimethyl Formamide), carrying out ultrasonic treatment, adding Si powder, adding the Si powder in three times, and then carrying out magnetic stirring, so that nano metal powder and a polymer solution are fully mixed; the preparation method comprises the following steps: adding an energetic oxidant AP into a polymer solution containing nano Si powder according to a mass ratio of PVDF / AP of 1: 3, magnetically stirring, and carrying out ultrasonic treatment to obtain a precursor solution PVDF / AP / Si; and relevant parameters are set, and the coated and modified shell-core type nano composite metal powder is prepared through a spray granulation method. According to the invention, the yield of the silicon-based compound can be improved, the energy and combustion performance of the compound are improved, and the cost of coating silicon powder is effectively reduced. In addition, the PVDF, the AP and the silicon powder are wrapped according to the optimal proportion, so that the energy release efficiency of the compound Si-coated PVDF / AP reaches the maximum.
Owner:AIR FORCE UNIV PLA

Composite thermite for forcible entry and preparation method thereof

The invention relates to a composite thermite for forcible entry and a preparation method thereof. The composite thermite comprises an aluminothermic reaction agent; a fluxing agent; a binder; and a strong oxidant. Wherein the thermit reaction agent is mixed powder composed of fuel metal particles and metal oxide particles, and the surfaces of the fuel metal particles are subjected to coating modification treatment through a fluorine-containing polymer; in the composite thermite, the mass ratio of the thermite reaction agent is 40%-75%, the mass ratio of the fluxing agent is 2%-10%, the mass ratio of the binder is 5%-20%, and the mass ratio of the strong oxidant is 5%-30%. The composite thermite disclosed by the invention is prepared into a blocky or columnar structure through a compression molding process or a curing molding process, is used for forcible entry of metal or non-metal obstacles, improves the forcible entry performance, is high in medicament environment adaptability and good in use effect, and can be produced on a large scale.
Owner:ARMY ENG UNIV OF PLA

Composite boron powder and preparation method thereof

The present invention relates to a composite boron powder and a preparation method thereof. The composite boron powder is prepared by a secondary condensation method using a vinylidene fluoride / propylene alcohol copolymer as a compounding agent, a polyethylene glycol monobutyl ether acrylate / acrylonitrile / allylamine / hydroxyethyl acrylate copolymer as an auxiliary compounding agent, an epoxy resin as a high-strength composite adhesive, and diethylenetriamine as a curing agent. The amounts of the components are based on the mass of the boron powder: the mass of the vinylidene fluoride / propylene alcohol copolymer is 1-2% of the mass of the boron powder, the mass of the polyethylene glycol monobutyl ether acrylate / acrylonitrile / allylamine / hydroxyethyl acrylate copolymer is 0.3-1% of the mass of the boron powder, the mass of the epoxy resin is 2-3% of the mass of the boron powder, and the mass of the diethylenetriamine is 0.15-0.4% of the mass of the boron powder.
Owner:HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY

Automatic grain pressing device

The utility model provides an automatic grain pressing device which can achieve automatic pressing of small energetic grains, improve the pressing efficiency and reduce the labor intensity of workers. The automatic grain pressing device comprises a supporting unit, a hydraulic pump station, a hydraulic cylinder, a pressure sensor and a mold, wherein the hydraulic pump station, the hydraulic cylinder, the pressure sensor and the mold are arranged on the supporting unit; the hydraulic pump station is connected with the hydraulic cylinder and used for providing hydraulic oil for the hydraulic cylinder. A piston of the hydraulic cylinder is vertically opposite to the pressure sensor; the mold is arranged at the piston end of the hydraulic cylinder and is used for filling medicament powder to be pressed; the pressure sensor is used for detecting the pressure borne by the medicine column in the pressing process.
Owner:SHAANXI ZHONGTIAN ROCKET TECH CO LTD

Firework propellant containing fluorine binder and preparation method of firework propellant

The invention discloses a firework propellant containing a fluorine binder and a preparation method of the firework propellant, and belongs to the technical field of firework propellant composite materials. The preparation method comprises the following steps: dissolving Fe3O4, CuO and polyvinylpyrrolidone into a mixed solution; dissolving the RDX in an acetone solution, and adding the mixed solution to recrystallize and separate out the RDX to obtain a modified RDX explosive; under the protection of inert atmosphere, mixing aluminum powder, magnesium powder and boron powder to obtain active metal powder; adding polytetrafluoroethylene powder, modified RDX explosive and active metal powder to obtain premixed composite powder; and adding a binder fluororubber and polyvinylidene fluoride into ethyl acetate, mixing, adding the premixed composite powder, mixing, and granulating. According to the fluorine-containing binder, the burning speed of a firework propellant system can be controlled, the fluorine-containing binder has good compatibility with an energetic material system, and the product has the advantages of being free of sulfur and nitrogen, slight in smoke, resistant to high temperature, high in safety and the like.
Owner:LIUYANG QIFANG ENVIRONMENTAL PROTECTION MATERIALS CO LTD

High-explosion-heat insensitive environment-friendly firework propellant powder and preparation method thereof

The invention discloses a high-explosion-heat insensitive environment-friendly firework propellant and a preparation method thereof, and belongs to the technical field of fireworks and crackers. Based on a thermal radiation principle, superfine metal powder with a high combustion heat value is selected as a combustible agent, high-molecular fluoride is used as an oxidizing agent, and a high-energy insensitive energetic material 3-nitro-1, 2, 4-triazole-5-ketone (NTO) is introduced to obtain the firework propellant. Wherein the high-molecular fluoride and the superfine active metal powder have good reactivity, and flame generated by the high-molecular fluoride and the superfine active metal powder contains solid and liquid scorching particle emitters, so that the flame is brighter in the combustion process of the fireworks and crackers; and by adding the high-energy insensitive energetic material NTO, the explosion heat and the throwing height of the firework propellant powder are improved. Compared with a traditional firework propellant formula, the obtained product has the advantages of being non-toxic, harmless, safe and environmentally friendly, and has good application value in the field of fireworks and crackers.
Owner:LIUYANG QIFANG ENVIRONMENTAL PROTECTION MATERIALS CO LTD

Infused solid fuel for hybrid rockets and ordnance

An infused solid polymeric fuel for use in a hybrid rocket or as explosive ordnance. An infused solid polymeric fuel can include a porous polymeric body having continuous pores distributed throughout a volume of the polymeric body and connecting to an external surface of the polymeric body. A combustion enhancement agent can be infused into the polymeric body. The combustion enhancement agent can be deposited on interior surfaces of the pores and on the external surface of the polymeric body. The combustion enhancement agent can include a catalyst, an oxidizer, a hypergolic fuel, or a combination.
Owner:SPACE DYNAMICS LAB +1

Explosive pressing method of multi-layer composite structure

The invention provides an explosive pressing method for a multi-layer composite structure, which comprises the following steps of: 1, calculating the loose loading height of an explosive according to the loose loading density and the stacking density of the explosive by adopting a quality consistency method; 2, determining the design height and diameter of the auxiliary cylinder according to the loose loading height of the explosive; and thirdly, the auxiliary barrel and the explosive pressing mold are assembled, the different explosives are filled to the same height, then the auxiliary barrel is slowly pulled out, and the explosive pressing mold is used for conducting composite pressing on the multiple explosives. The explosive pressing die comprises a base, a cushion block, a die sleeve and a guide cylinder, and a positioning pin shaft is arranged on an auxiliary cylinder for coaxial positioning. The device is suitable for different explosive combinations, the process is flexible, adaptability is high, practicability and applicability are improved, and the device is simple in structure and convenient to assemble and produce.
Owner:HENAN NORTHERN HONGYANG ELECTROMECHANICAL CO LTD

Thermoplastic elastomer propellant with low pressure index and preparation method thereof

The invention discloses a low-pressure-index thermoplastic elastomer propellant and a preparation method thereof, and the low-pressure-index thermoplastic elastomer propellant provided by the invention comprises the following components in percentage by mass: 10-15% of a thermoplastic adhesive system; 15-18% of a metal fuel; 65-70% of an oxidant; 0.5-3% of a combustion performance regulator; the thermoplastic adhesive system at least comprises two kinds of thermoplastic elastomers with different melting points. According to the propellant prepared by adopting the adhesive system, the combustion rate pressure index propelled by the thermoplastic elastomer can be remarkably reduced, the combustion efficiency of the propellant is improved, the combustion rate adjusting range of the propellant is widened, and the mechanical property and the processing property of the thermoplastic elastomer propellant can be improved at the same time.
Owner:HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY

High-heat-release three-dimensional porous nano thermite and confinement assembly preparation method thereof

The invention discloses a high-heat-release three-dimensional porous nano thermite and a confinement assembly preparation method thereof, and belongs to the field of energetic material preparation. Hierarchical structure mesoporous CuO is constructed through biological templates (butterfly wings and lycopodium spores), and Al / PW-CuO and Al / LP-CuO are formed by confinement assembly of the hierarchical structure mesoporous CuO and nano aluminum powder. The unique ridge-shaped sheet and porous tetrahedral structure increases reaction sites and inhibits agglomeration of nano-aluminum. The method for preparing the thermite through a confinement assembly technology has the outstanding advantages of simple equipment, simplicity in operation, low cost, high safety, large-scale preparation and the like, the contact area between a combustion agent and an oxidizing agent can be effectively increased, the agglomeration phenomenon of particles is reduced, and the heat release and combustion performance of the thermite is enhanced.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Emulsion explosive sensitization auxiliary assembly

The utility model relates to the technical field of emulsion explosive sensitization, in particular to an emulsion explosive sensitization auxiliary component which comprises a bottom plate, the device comprises a bottom plate, a stirring tank, liquid storage tanks, weighing sensors, a weighing plate, an annular baffle, a first material baffle, a first electric push rod, a through hole and a liquid outlet pipe, the stirring tank is connected to the top of the bottom plate, the liquid storage tanks are connected to the front end and the rear end of the left side of the top of the stirring tank, the weighing sensors are installed at the bottoms of the interiors of the liquid storage tanks, and the upper ends of the weighing sensors are connected with the weighing plate. The interior of the liquid storage tank is connected with an annular baffle; through the arrangement of the liquid storage tank, the weighing sensor, the weighing plate, the annular baffle plate, the material baffle plate I, the electric push rod I and the through hole, when a sensitizer and an accelerant need to be quantitatively added, the electric push rod I can drive the material baffle plate I to open or close the through hole, and a medicament can be quantitatively weighed in cooperation with the weighing sensor; after weighing is completed, the emulsion explosive can be quantitatively added into the stirring tank through the liquid outlet pipe, and the sensitization quality of the emulsion explosive is guaranteed.
Owner:湖南金聚能科技有限公司

ENERGY MATERIALS

Owner:NEDERLANDSE ORG VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO

Emulsion explosive recovery equipment

The utility model discloses emulsion explosive recovery equipment, and particularly relates to the technical field of emulsion explosive recovery, the emulsion explosive recovery equipment comprises an equipment bracket, a heating cylinder is fixedly mounted in the equipment bracket, a mixing mechanism is arranged in the heating cylinder, a feed port is fixedly mounted at the top of the heating cylinder, and a discharge frame is fixedly mounted at the bottom end of the heating cylinder; the mixing mechanism comprises a mixing middle cylinder, the mixing middle cylinder is rotatably mounted in the middle of the heating cylinder, and a plurality of connecting cylinders are integrally formed on the mixing middle cylinder. By arranging the mixing mechanism, a density adjusting solvent can be uniformly guided into the emulsion explosive waste through a plurality of liquid spraying holes, and firstly, the density adjusting solvent is in large-area contact with the emulsion explosive waste; the mixing time of the density adjusting solvent and the emulsion explosive waste is shortened, the emulsion explosive waste and the density adjusting solvent are rapidly heated and mixed in cooperation with rotation of the stirring frame, and the treatment efficiency of the emulsion explosive waste is improved.
Owner:STATE OWNED YUNNAN PACKING FACTORY

Emulsion explosive composite oil phase production device

The utility model discloses an emulsion explosive compound oil phase production device which comprises a supporting frame, a supporting plate is arranged in the supporting frame, a through groove is formed in the surface of the top of the supporting plate in a penetrating mode, and a ventilation net is arranged in the through groove. According to the composite oil phase cooling device, the box door is opened, a plastic barrel containing a composite oil phase is placed in the containing frame, the air blower is started, the air blower conveys cold air to the air outlet nozzles on the air outlet pipe, the cold air is blown out through the air outlet nozzles, and then the composite oil phase can be cooled; the gear drives the rack to move while rotating, so that the push plate at one end of the rack moves, and when universal wheels on the two sides of the bottom surface of the push plate move to the ground, the device can be moved through the use of the universal wheels, so that the device can be conveniently moved to different positions for use, the defects during use are reduced, and the device is convenient to use. And the flexibility of the device is improved.
Owner:JIANGXI GUOTAI LONGSHI TECH CO LTD

Propellant containing active metal fuel and preparation method thereof

The invention belongs to the technical field of solid propellants, and particularly relates to a propellant containing active metal fuel and a preparation method of the propellant. 3.0-4.0% of a plasticizer; 0.3-0.4% of a curing agent; 0.1%-2.0% of a combustion rate regulator; 0.01%-0.5% of a bonding agent; 15-19% of an active metal fuel; 10-18% of a nitramine explosive; the metal fuel is an aluminum-gallium metal alloy, and the aluminum-gallium metal alloy is an aluminum-gallium metal alloy of which the outer layer is coated with an aluminum film. The propellant provided by the invention has the advantage of high combustion efficiency, and can meet the requirement of a solid rocket engine on the high energy performance of the propellant.
Owner:HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY

Bidirectional explosive pressing mold

The utility model relates to the technical field of gunpowder column production equipment, in particular to a bidirectional gunpowder pressing die which comprises a die sleeve, an upper punch and a lower punch are arranged in the die sleeve, the upper punch is movably arranged at the upper end of the die sleeve, so that a pressing cavity used for containing and pressing gunpowder columns is formed between the upper punch and the lower punch, and the lower punch is movably arranged at the lower end of the die sleeve. An explosive pressing limiting piece is detachably arranged between the lower punch and the die sleeve, the explosive pressing limiting piece is used for limiting the distance that the lower punch penetrates into the die sleeve when the gunpowder grain is pressed for the first time, and the explosive pressing limiting piece is detached after the gunpowder grain is pressed for the first time, so that the lower punch can conduct second-time feeding into the pressing cavity to achieve second-time pressing of the gunpowder grain; the gunpowder grain is pressed in two times through upper punching and lower punching, and the gunpowder grain is pressed in two times through the gunpowder grain upper end and the gunpowder grain lower end, so that the density of the gunpowder grain formed through pressing is more uniform than that of a gunpowder grain formed through single-time pressing, and the detonation performance of the gunpowder grain is improved.
Owner:ZHEJIANG MILITARY IND GRP CO LTD

Core-shell structured quaternary energetic material and its preparation method and application

The application provides a kind of core-shell structure quaternary energetic material and its preparation method and application, wherein the preparation method comprises the following specific steps: S1: nano magnesium powder and potassium nitrate powder are dissolved in organic solvent in turn, and Mg / KNO3 energetic slurry is obtained by heating and stirring;S2: nano aluminum powder and PTFE powder are treated by ultrasonic to obtain metastable mixed powder, then the metastable mixed powder is added to the prepared polymer binder, and Al / PTFE metastable composite slurry is obtained by heating, stirring and evaporation treatment;S3: the Mg / KNO3 energetic slurry obtained in S1 and the Al / PTFE metastable composite slurry obtained in S2 are added to two different barrels of 3D printer respectively, the equipment parameters of 3D printer are adjusted, and the Al / PTFE / Mg / KNO3 quaternary energetic material with core-shell structure is processed.The quaternary energetic material of the application can reduce the ignition temperature of the existing composite system material, further reduce the carbon residue formed after combustion, and the processing technology is simple, which can meet the personalized forming demand.
Owner:BEIJING INST OF TECH

Method for extracting ammonium perchlorate from a solid composite propellant

A method for recovering ammonium perchlorate from a solid composite propellant, the method being carried out at a temperature of less than 50° C. involving maceration of solid composite propellant fragments in the form of an aqueous suspension, the method being terminated when the ionic conductivity in the aqueous suspension reaches a stabilized value, of less than 60 mS / cm.
Owner:ARIANEGRP SAS

Low-sensitivity activator as well as preparation method and application thereof

The invention discloses a low-sensitivity activator as well as a preparation method and application thereof, and belongs to the technical field of gas fracturing. Potassium perchlorate is used as an oxidizing agent of the low-sensitivity activator, flour is used as a combustible agent of the low-sensitivity activator, and the mass ratio of the potassium perchlorate to the flour in the low-sensitivity activator is (50-70): (10-20). The low-sensitivity activator provided by the invention has the advantages that the mechanical sensitivity, flame sensitivity and static sensitivity of the low-sensitivity activator are at extremely low levels, and the low-sensitivity activator has excellent stability and higher ignition temperature; related tests carried out according to the Program on Dangerous Goods Transport of the United National further show that the activator not only has remarkable gas production rate, but also shows extremely low sensitivity to shock waves, the insensitive characteristic of the activator is even superior to that of a conventional insensitive explosive, and practical application verification shows that the cracking effect of the activator is completely not lower than the level of a metal powder activator.
Owner:SHANXI JIANGHUAI HEAVY IND

High-activity energetic microsphere containing nano boron powder and ETN and preparation method of high-activity energetic microsphere

The invention discloses a high-activity energetic microsphere containing nano boron powder and ETN and a preparation method of the high-activity energetic microsphere, and belongs to the field of explosives. The microspheres are formed by uniformly mixing nano boron powder, ETN and NC, NC serves as an adhesive to enable the mixture to be in a microsphere shape, and ETN serves as a plasticizer of NC to improve the physical performance and energy release efficiency of the microspheres. Wherein ETN serving as a plasticizer of NC and NC can be decomposed and release high-temperature oxygen before nB is ignited, and nB is preheated and activated, so that the ignition temperature of nB is lower than 500 DEG C, and the combustion rate of nB is 1000 times that of micron boron. The preparation method of the high-activity energetic microspheres containing nano boron powder and ETN comprises the following steps: chemically modifying by using a silane coupling agent, combining PEG and nB, forming by using a microfluidic O / W emulsion method, and controlling parameters such as pH and flow velocity to prepare the microspheres with high sphericity and uniform dispersion.
Owner:ZHONGBEI UNIV

Integrated shooting nail primer composition and preparation method thereof

PendingCN120887766AExplosive working-up apparatusDetonatorLEAD TETROXIDE
The invention provides an integrated nail shooting primer composition and a preparation method thereof, the integrated nail shooting primer composition comprises the following raw materials: potassium chlorate, antimony trisulfide, lead tetraoxide, fine iron powder, silicon powder and sodium persulfate, the raw materials are prepared, accurately weighed, mixed and stirred, granulated, dried and screened, the dried particles are screened, and too large or too small particles are removed. According to the integrated nail shooting primer composition provided by the invention, the explosion performance can be improved by arranging the Teramine in the potassium chlorate, the antimony trisulfide, the lead tetraoxide, the iron concentrate powder and the silicon powder, the integrated nail shooting primer composition can play a strong explosion role in the fields of military and industrial explosion and the like, and the explosion propagation performance is good; the device can be used for filling detonators and manufacturing booster grains and detonating cords, and the efficiency and safety of blasting operation are improved.
Owner:SICHUAN HESHIBI TECHNOLOGY CO LTD