31results about "Explosive ingredient compounding" patented technology

The invention relates to the technical field of gas production materials, and discloses preparation and application of a high-nitrogen energetic gas production material, triazole has high-energy and multi-nitrogen characteristics, nitryl compounds have high energy, and the combination of triazole and nitryl compounds enables the gas production material to have the characteristics of large gas production rate, low-temperature combustion, less harmful gas and the like; the molecular structure contains a large number of N-N, C-N and C = N bonds and has high enthalpy of formation, meanwhile, the content of C and H in the molecule is low, the density of the energetic material can be improved, the electronegativity of nitrogen and oxygen atoms in the structure is high, and the energetic material is a painful energetic material and has high safety in the using process; compared with similar gas production materials, the prepared gas production material has the advantages that the gas production rate is greatly increased, the amount of solid residues is greatly reduced, the added adhesive has no corrosivity, the prepared gas production material is good in fluidity, the external additive can play a role in slagging, and the residues are not prone to being sprayed out.

A phase-stabilized ammonium nitrate (PSAN) explosive is provided, comprising PSAN prills and a fuel. The PSAN prills contain ammonium nitrate, a potassium salt, and an inorganic porosity enhancer.

This invention discloses a fluoride-modified liquid metal thermite and its preparation method, belonging to the field of thermite preparation technology. It utilizes Galinstan eutectic to prepare liquid metal; aluminum powder and liquid metal are synthesized using physical mixing and ultrasonic treatment to obtain liquid metal-modified aluminum; FeCl3·6H2O is added to a perfluorooctanoic acid aqueous solution and stirred, followed by a hydrothermal reaction; the resulting product is washed to obtain Fe(PFO)3; the liquid metal-modified aluminum is mixed with iron perfluorooctanoate and ultrasonically treated to obtain Fe(PFO)3@LM-Al; Fe(PFO)3@LM-Al and iron oxide are added to anhydrous ethanol and ultrasonically stirred to obtain Fe(PFO)3@LM-Al@Fe2O3. This invention, using the above method, raises the high-temperature thermal oxidation reaction temperature of aluminum powder to before the melting point of 660℃, achieving a breakthrough in the thermal mass transfer process of aluminum powder.

The present invention relates to a method for synthesizing an organic explosive, the method comprising the steps of: i) providing a first solution A; ii) providing a second solution B, selected such that an admixture of solutions A and B reacts together upon formation of the admixture to provide the organic explosive; iii) mixing solutions A and B and passing them through a flow reactor to produce the admixture, the flow reactor comprising a pipe, the inner diameter of which is selected to be less than a critical diameter of the organic explosive, thereby preventing detonation of the formed organic explosive in said flow reactor.

Provided are systems and methods for synthesis of metastable intermolecular composites, specifically energetic nanocomposites. The method may include dispersing a reductive fuel within a first aqueous solution and combining the reductive fuel solution with a second aqueous solution comprising a metal oxide and base to create a reductive fuel-metal oxide / base solution. The reductive fuel-metal oxide / base solution is mixed and solid material is filtered and collected from the mixture. The solid material is heated to obtain reductive fuel-metal oxide energetic nanocomposites. The ratio of base to metal oxide can be varied to achieve different structures of including core-shell or well-mixed nanocomposites. The reductive fuel may be aluminum nanoparticles, the metal oxide may be copper oxide, and the base may be ammonia. The method can be used for mass production of energetic nanocomposites and the structure of the energetic nanocomposites can be varied to tune the energetic performance of the energetic nanocomposites.

The present disclosure discloses a gel-like energetic material, a preparation method, and a related system and device. The gel-like energetic material can be stably filled in a water gap for a long time without a housing and enables positive and negative electrodes of the gap to communicate with each other. A common formula is a mixture containing nitromethane, aluminum powder, and metal oxides. After initiating explosive device testing, friction sensitivity and impact sensitivity are both zero, and safety is extremely high. Formula compositions are insoluble or extremely difficult to dissolve in water, will not fail or decompose after soaked in water for a long time, and can still detonate normally under an action of a pulse current. After being filled in the water gap, the gel-like energetic material can generate a shock wave with a fixed amplitude, impulse and energy under drive of a pulse source with specific parameters.

This invention discloses a eutectic explosive for laser-initiated detonation and its preparation method. The basic structure of the eutectic explosive includes one CL-20 molecule, two DATNBI molecules, and two acetonitrile molecules. The unit cell parameters of the eutectic explosive are α = 94.764°, β = 95.065°, γ = 107.066°, Z = 2, belonging to the monoclinic crystal system, space group P-1. The CL-20 / DATNBI eutectic of this invention exhibits low insensitivity and good thermal stability. It can be used as a new generation of metal-free laser-initiated explosives through a molecular-level hierarchical detonation structure, showing promising application prospects in the field of laser-initiated detonation.

The invention relates to the technical field of emulsion explosive production, in particular to an emulsion explosive production auxiliary feeding device which comprises a device frame and a stirring barrel, the inner side surface of the device frame is provided with a feeding base used for inputting raw materials, and the bottom surface of the feeding base is provided with a communicating pipeline used for controlling starting and stopping of raw material inputting. A switching disc for switching input raw materials is arranged on the surface of the outer side of the feeding base, a raw material box for controlling the input amount of the raw materials is arranged on the surface of the top of the feeding base, a buffer box is divided into an inner area and an outer area by an inner partition plate, the raw materials enter the inner area through a communicating hole, and an inner lifting seat lifts under the buoyancy action of the raw materials; according to the raw material feeding device, the feeding amount and the feeding time of each time of raw materials are controlled, automatic recovery is achieved after feeding, the cache area is filled again, leakage of the raw materials and invasion of external impurities can be effectively prevented, cleanliness of the production environment and purity of the raw materials are guaranteed, and meanwhile waste of the raw materials and possible safety risks are avoided.

A continuous mixing technology is used to develop a continuous process as an alternative manufacturing technology to sigma-blade batch mixer process for producing flexible explosive formulations (e.g. Flex-X) that is composed of energetic solids and additives without any solvents. This continuous mixer's chamber is partially filled under atmospheric pressure with significant overhead space, reducing energetic hazards. The continuous mixing machine can be comprised with one or two temperature zones, wherein all ingredients are added subsequently into the mixing chamber.

The invention relates to the technical field of expanded ammonium nitrate explosives, in particular to a preparation method of a high-free-flowing liquid-mixed expanded ammonium nitrate explosive, which comprises the following steps: adding porous granular ammonium nitrate accounting for 15-25% of the weight of a liquid-mixed ammonium nitrate base material into the liquid-mixed ammonium nitrate base material prepared after expanded crystallization; the preparation method of the porous granular ammonium nitrate comprises the following steps: preparing rice husk charcoal from rice husks in an inert atmosphere, dispersing the rice husk charcoal in ethanol, adding tetraethoxysilane, adjusting the pH value, and filtering, washing and drying after the reaction is completed to obtain a charcoal-silicon composite carrier; adding a nonionic surfactant and a silane coupling agent to pre-treat the ammonium nitrate feed liquid; adding a carbon-silicon composite carrier into the pretreated ammonium nitrate feed liquid, preserving heat, and uniformly stirring to obtain premixed liquid; and finally, carrying out spray drying to obtain the porous granular ammonium nitrate. The prepared expanded ammonium nitrate explosive has good free-running property and moisture absorption resistance, and is safe and reliable in explosion performance.

The invention discloses a preparation method of an emulsion explosive for explosive synthesis of a nano positive electrode material, and relates to the technical field of emulsion explosives, and the preparation method comprises the following steps: S1, sequentially adding deionized water, a water-soluble active agent, ammonium nitrate and a positive electrode source material into a water phase tank to prepare a water phase, heating to 90-95 DEG C, and keeping the temperature for later use; and S2, sequentially adding the compound oil and the emulsifier into an oil phase tank to prepare an oil phase, heating to 80-90 DEG C, and keeping the temperature for later use. And S3, adding the water phase and the oil phase into an emulsification mixer, emulsifying, adding a sensitizer, carrying out sensitization foaming, charging, cooling and packaging to obtain the emulsion explosive for explosive synthesis of the nano positive electrode material. The invention provides an innovative technical path and a key material basis for green and efficient synthesis of a high-performance nano battery material.

The invention discloses a reducing agent spraying device for an on-site explosive mixing and loading truck, which comprises a box body arranged at an opening at the upper part of a spiral stirrer of the on-site explosive mixing and loading truck, as long as the opening, and provided with a flow inlet plate and a flow jet plate; a first liquid inlet connector and a second liquid inlet connector are formed in the flow inlet plate; a plurality of jet holes are formed in the jet plate; a partition plate is arranged in the box body and divides the inner space of the box body into a first flow channel and a second flow channel which are isolated from each other. The plurality of jet holes comprise a first group of liquid outlet holes and a second group of liquid outlet holes, the first group of liquid outlet holes are communicated with the first flow channel, and the second group of liquid outlet holes are communicated with the second flow channel; jet flow holes in the first group of liquid outlet holes and the second group of liquid outlet holes are uniformly distributed in an array along the length direction of the spiral stirrer. The length of the box body is set to be equal to that of the opening in the upper part of the spiral stirrer, and the two groups of jet holes are uniformly distributed and arrayed in the length direction of the spiral stirrer, so that uniform spraying of two reducing agents matched with the structure of the spiral stirrer is realized.

The present invention relates to methods and processes to prepare pre-mixed compositions that can be combined to form pyrotechnic compositions in mixed multiple parts. In exemplary embodiments, a binder curing agent ingredient is premixed with pyrotechnic fuels and can also include other pyrotechnic additives and processing aides. Other binder ingredients such as a binder resin can be premixed with the pyrotechnic oxidizers and can also include other pyrotechnic additives and processing aides. The resulting mixtures are not explosive and are much safer to handle and easier to store for extended shelf-life over a final pyrotechnic composition. Further, the pre-mixed mixtures can be stored in bulk until needed and rapidly combined to achieve the final pyrotechnic composition.

The invention relates to the technical field of combustion catalysts, in particular to a bismuth resorcinate combustion catalyst and a preparation method thereof.The preparation method comprises the steps that resorcinic acid is dissolved into a sodium resorcinate solution with an alkaline sodium-containing compound solution, and then the sodium resorcinate solution and a bismuth nitrate solution are heated and then conveyed to an ultrasonic mixing reactor; and carrying out aging, filtering, washing and vacuum drying on the bismuth resorcinate precipitate so as to obtain the combustion catalyst. Reacting liquid generates bismuth resorcinate precipitate under the synergistic effect of screen mesh macromixing and ultrasonic micromixing in the mixer.

This invention discloses an aqueous phase preparation tank for emulsion explosives, comprising a mixing tank and a recovery tank. The mixing tank has a lid, and a gas pipe is vertically inserted into the lid. Several identical aeration heads are installed on the gas pipe inside the mixing tank. An inlet pipe and an outlet pipe are installed at the upper and lower ends of the mixing tank, respectively. A conduit is connected to the lid, and the outlet end of the conduit is connected to the recovery tank and extends into its lower interior. A second liquid outlet pipe is vertically installed inside the recovery tank. A pressure gauge is installed on the lid. Gas valves are installed on both the connecting pipe and the conduit. This invention relates to the field of aqueous phase preparation technology. Steam with a certain pressure and temperature is introduced into the mixing tank using a pump, a gas pipe, and several aeration heads. The steam's turbulence and foaming action stirs, mixes, and heats the materials in the mixing tank, resulting in uniform mixing in all parts.

Disclosed are an ignition powder, a preparation method therefor and a use thereof, and an airbag gas generator, which belong to the technical field of ignition powders. The raw materials of the ignition powder include the following components in percentages by mass: potassium perchlorate. 30%˜50%; basic copper nitrate: 5%˜20%; a fuel: 15%˜60%; a metal oxide: 1%˜25%; and a metal powder: 1%˜25%, wherein the metal powder is at least one of a titanium powder, a magnesium powder, a copper powder, an iron powder, a zirconium powder, a hafnium powder, a tungsten powder or a silicon powder.

The invention relates to a method for preparing a bimetallic anti-aging metastable intermolecular compound film based on electrostatic spinning. Comprising the following steps: (1) preparing a polyvinylidene fluoride polymer dispersion liquid; (2) respectively adding nano aluminum and micron nickel into the polyvinylidene fluoride polymer dispersion liquid, dispersing and mixing to obtain a bimetallic mixed precursor liquid; (3) adding nano copper oxide into the bimetallic mixed precursor solution, and mixing to form a bimetallic metastable intermolecular compound polyvinylidene fluoride precursor solution; and (4) carrying out electrostatic spinning on the precursor solution to obtain the bimetallic anti-aging metastable intermolecular compound film. According to the method, while the dispersity of the bimetal metastable intermolecular compound is effectively improved, the bimetal metastable intermolecular compound can be uniformly loaded on the polyvinylidene fluoride fiber to form an energetic composite film, and the energetic composite film has good anti-aging performance; under the condition that the sample is pollution-free and safe, the whole preparation process is simple, the consumed time is short, and the equipment operation difficulty is low.

The invention discloses a novel ammonium nitrate-oil compound oil phase device and a preparation method, and relates to the technical field of ammonium nitrate-oil compound oil phase preparation.The novel ammonium nitrate-oil compound oil phase device comprises a frame body, a groove is formed in the center of the top of the frame body, a circular groove is formed in the bottom of the frame body, a through hole is formed in the top of the circular groove, and the circular groove is communicated with the interior of the groove through the through hole; through mutual cooperation of a motor, an air cylinder, an L-shaped stirring rod, high-shear emulsifying equipment and other structures, composite wax and biodiesel can be put into a vertical barrel according to the proportion, the motor and a heater are started, the heater heats the interior of the vertical barrel in a stepped mode, the motor drives a cross-shaped rod to rotate, the cross-shaped rod drives a rotating rod to rotate, and the rotating rod is driven to rotate. The rotating rod drives the limiting ring to rotate, the rotating rod drives the L-shaped stirring rod to rotate, the L-shaped stirring rod stirs and mixes the composite wax and the biodiesel in the vertical cylinder, so that the wax is completely melted, and in a stirring state, an accurately metered emulsifier is added into a hot oil phase in the vertical cylinder.

The invention discloses a rock expanded ammonium nitrate explosive and a preparation method thereof, and relates to the technical field of explosives, the rock expanded ammonium nitrate explosive comprises the following raw materials by weight: 70-90 parts of ammonium nitrate, 3-5 parts of a composite oil phase, 3-5 parts of wood flour, 8-12 parts of porous granular ammonium nitrate, and 0.01-0.1 part of an expanding agent; the swelling agent consists of microcrystalline wax, calcium stearate, a polyoxyethylene ether surfactant and a quaternary ammonium salt surfactant; the preparation method of the rock expanded ammonium nitrate explosive comprises the following steps: mixing ammonium nitrate with water to obtain a water phase; and mixing and puffing the water phase, the composite oil phase and the swelling agent, adding the wood flour and the porous granular ammonium nitrate, and uniformly mixing to obtain the rock expanded ammonium nitrate explosive. Through the design of the swelling agent, the free-running property and the viscosity of the rock expanded ammonium nitrate explosive are considered, and the powder return rate of the rock expanded ammonium nitrate explosive in the upward hole charging process is reduced.

The invention relates to the technical field of firework manufacturing equipment, in particular to a powder mixing machine which comprises a mixing barrel with a feeding port formed in the top and a mixing shaft arranged in the mixing barrel, a spiral blade is arranged on the mixing shaft, and a cover cylinder fixed relative to the mixing barrel is coaxially arranged on the outer side of the spiral blade in a sleeving mode. And the upper end of the spiral blade is higher than the upper end of the cover cylinder, so that materials at the bottom of the cover cylinder are lifted upwards and discharged from the top of the cover cylinder. Materials at the bottom of the cover cylinder are continuously and upwards conveyed through the spiral blades, when the materials reach the opening in the top end of the cover cylinder, the materials are forcibly discharged and scattered to an annular area between the outer wall of the cover cylinder and the inner wall of the stirring barrel, then the materials flow back downwards along the annular area under the action of gravity, and a large-range and clear-path axial circulation is formed.

A processing vessel (1) provided with a material inlet (2, 3, 4, 5) and a processed material outlet (25) wherein the material flows continuously through the vessel which is split into a series of zones (6, 7, 8) through which the material passes wherein the zones are shielded from each other by controlling the rate at which the material flows and an increasing level of vacuum is applied inconsecutive zones and the system is provided with acoustic energy which imparts energy to the process material by virtue of the contact between the zone dividers and the process material and processing material in such a vessel.

The application provides a hydroxylamine nitrate-based monopropellant and a preparation method thereof, and comprises the following components with mass percentage: HAN: 50%-70%; alcohol: 14%-25%; functional additive: 14%-35%; and water: 1%-5%; wherein the functional additive comprises high-energy additive and cosolvent additive, the mass percentage of the high-energy additive is 13.5%-34.8%, and the mass percentage of the cosolvent additive is 0.2%-0.5%. The hydroxylamine nitrate-based monopropellant provided by the application has the characteristics of green, low toxicity, high specific impulse performance, low sensitivity, clean and non-polluted combustion products and the like.

The application provides a device and method for preparing monodisperse emulsion explosive and the monodisperse emulsion explosive, and relates to the technical field of emulsion explosive production. The device comprises a raw material supply unit, a laminar flow emulsification unit, a material separation unit and a sensitization and reinforcement mixing unit. The preparation method comprises the following steps: mixing and emulsifying an oil phase and a water phase in a micron-level laminar flow emulsification unit to obtain a mixed material; the mixed material is separated by the material separation unit to obtain a monodisperse water-in-oil emulsion matrix and an oil phase separation product, and the oil phase separation product is recycled between an oil phase feeding device and the laminar flow emulsification unit; and the monodisperse emulsion matrix is uniformly distributed with a sensitization material entering through the sensitization and reinforcement mixing unit in the sensitization and reinforcement mixing unit to obtain the monodisperse emulsion explosive. The device and method provided by the application are far smaller than the detonation diameter of the emulsion explosive in the production process, can realize intrinsic safety, and the storage period of the produced emulsion explosive is long and the density can be designed and adjusted.

The invention relates to the technical field of expanded ammonium nitrate explosives, in particular to a preparation method of a compound oil phase of an expanded ammonium nitrate explosive and the expanded ammonium nitrate explosive. The preparation method of the compound oil phase of the expanded ammonium nitrate explosive comprises the following steps: carrying out partial hydrotreating on cottonseed oil, and modifying by using 1, 6-hexamethylenediamine to obtain modified cottonseed oil; the preparation method comprises the following steps: preparing raw materials according to the following components in parts by weight: 65-90 parts of modified cottonseed oil, 5-15 parts of polyisobutene, 5-10 parts of microcrystalline wax and 1-5 parts of fumed silica; and heating and melting the modified cottonseed oil, adding polyisobutene, microcrystalline wax and fumed silica, and mixing to obtain the product. The mixed compatibility of the composite oil phase and ammonium nitrate is high, the coating effect is good, and the prepared expanded ammonium nitrate explosive has good water resistance, caking resistance and explosion performance and is safe and reliable in quality.

According to the HTPB-coated AlH3 compound and the preparation method thereof, a coating material can effectively prevent AlH3 from being in contact with the external environment (such as moisture and oxygen), the surface of the AlH3 can be smooth, hot spots are reduced, the influence on the physical and chemical properties of the AlH3 is small, the stability of the AlH3 can be remarkably improved, and the electrostatic spark sensitivity of the AlH3 can be reduced; hTPB is used as a coating material of AlH3, so that the stability of AlH3 can be improved, and the compatibility problem possibly caused by coating of non-formula components is avoided. The thermal decomposition peak temperature of the prepared HTPB coated AlH3 compound is obviously increased, and the stability of AlH3 is effectively improved; meanwhile, the electrostatic spark sensitivity is obviously reduced, the safety performance of AlH3 is effectively enhanced, and the use and storage time of AlH3 is prolonged.

The application discloses an aluminum powder / perfluoropolyether / polymer / ammonium perchlorate composite energetic material and a preparation method thereof. The aluminum powder / perfluoropolyether / polymer / ammonium perchlorate composite energetic material is prepared by modifying aluminum powder with perfluoropolyether (PFPE), coating a polymer shell layer, and finally preparing the aluminum powder / perfluoropolyether / polymer / ammonium perchlorate composite energetic material through a cooling crystallization method. The polymer layer can prevent the PFPE from falling off, improve the combustion efficiency, and prevent the oxidant AP from directly contacting the reducing agent Al powder, thereby improving the use safety, and the preparation cost is low and the toxicity is small. Meanwhile, the particle size and the morphology of the Al / PFPE / polymer / AP composite particles prepared by the cooling crystallization method can be adjusted within a certain range.

The application discloses a kind of gel-like energetic material continuous pushing device and its related system, device and method, the gel-like energetic material can be stably filled in water gap for a long time without shell and connect gap positive and negative electrode.Other ingredients do not contain explosive in dangerous goods item, common formula is the mixture containing nitromethane, aluminum powder, metal oxide, friction sensitivity and impact sensitivity are zero after test of initiating explosive, safety is extremely high.And formula component is not soluble or very difficult to dissolve in water, not fail, not decompose under long-time soaking in water, still can be normally initiated under the action of pulse current.Gel-like energetic material is filled in water gap and can generate fixed amplitude, impulse and energy shock wave under the driving of specific parameter pulse source, with excellent repeatability.Compared with original parameter, water gap discharge greatly improves the amplitude, impulse and energy of shock wave, with great engineering application prospect.

The invention belongs to the technical field of emulsion explosive manufacturing, and particularly relates to an emulsion explosive storage period abnormity solving method based on an intelligent emulsification technology, and the emulsion explosive storage period abnormity solving method comprises the following components by taking the total weight of an oil phase composition as 100 wt%: 25-35 wt% of composite wax; 20-55 wt% of self-adjusting wax; 20 to 40 wt% of an emulsifier SP-80; 0 to 15 wt% of polyisobutylene succinimide; and 0-15 wt% of a modified additive. Compared with the prior art, the oil-phase composition has the advantages that the technical problems of short storage period and easiness in abnormity of emulsion explosives in the prior art are solved by optimizing the proportion of the components in the oil-phase composition.